Angioedema: a 24-hour photo diary by a patient posted on Flickr


Angioedema: a 24-hour photo diary by a patient posted on Flickr

The patient took pictures of herself and uploaded them to the photo sharing website Flickr under a Creative Commons license. She had the impression her symptoms were due to urticaria but since the process affects the subcutaneous tissues (note the upper lip edema), the more likely diagnosis is angioedema and urticaria.

Dr Heinrich Quincke first described the clinical picture of angioedema in 1882, hence the eponym Quincke's edema. Sir William Osler remarked in 1888 that some cases may have a hereditary basis; he coined the term hereditary angio-neurotic edema.


C1 protein, showing subunits C1r, C1s, and the C1q tails. Image source: Wikipedia. Patients with acquired angioedema have low C1q levels AND low C4/C2 levels. In contrast, in hereditary angioedema (HAE) the C1q level is normal.


Classical and alternative complement pathways. Image source: Wikipedia.

Read more about Angioedema at AllergyCases.org.

Link via AllergyNotes.

NEJM Invites Students and Residents to IT Horizons Conference

The Editor for Medical Education of the New England Journal of Medicine (NEJM) asked me to inform my readers (2,200 daily RSS subscribers plus 1,500 visitors) that the journal is seeking applications from interested residents and students to join them in Boston from October 24-26th, 2008 to discuss the future information needs of physicians and physicians in training.

The application is available at https://secure.nejm.org/horizons/

NEJM is seeking to bring together a group of visionary medical students and trainees to help NEJM push the boundaries of traditional medical publishing. We are looking for creative minds to join the editors for a weekend to explore what's possible. We anticipate a vigorous dialogue around the ideas that invited participants and other speakers share with the group.

If you are selected to join the conference:

  • We will cover the cost of round-trip coach/economy airfare to Boston from within North America or from western Europe.
  • We will cover the costs of room and board at the conference facility for your two-day stay, and transfers to and from Boston's Logan International airport.
  • You will receive a complimentary subscription to NEJM.org.
  • You will have a chance to shape the future of NEJM, and meet members of the editorial staff.

References:
NEJM is a Journal (Only) No More

Study: Future doctors share too much on Facebook. Way too much.

You can always rely on Joshua Schwimmer to find some interesting links and here it is:

Future doctors share too much on Facebook. University of Florida News Desk.

"Would it bother you to know that your physician smokes cigars and likes to do “keg stands”? That your gynecologist was a member of a group called “I Hate Medical School”? That your urologist is a fan of “The Texas Chainsaw Massacre”?

That is exactly the sort of information many people share on social networking sites such as Facebook and MySpace. According to a new University of Florida study, many medical students are sharing far too much."

The study was published in the Journal of General Internal Medicine (again?).

"Facebook is full of bluster and trash talk, and college-age users may feel that these items are not to be taken seriously. Yet patients and future employers, the researchers say, may not have quite so strong a taste for irony.

“Doctors are held to a higher standard,” Thompson said. “There are stated codes of behavior that are pretty straightforward, and those standards encourage the development of a professional persona.

The medical profession isn’t the only career that requires young people to develop a professional identity."

One of the best ways to establish an online identity is to buy a domain for your own name, start a blog and link them together. Then, you can be sure that when people Google your name, they will find you and not "bad_goat457," for example.

A domain name costs $ 10 per year. Most students are short of money but if you decide to place AdSense ads on your blog, the tiny income ($ 2 a month?) will pay for the domain name. Please note: this is not a product endorsement for Google AdSense.

Of course, as a future physician, it is probably better to blog if you have something valuable to say, or if you are planning to create a personal learning archive of sort. Google is already plenty busy indexing those trillions of web pages as it is.

Tips for Medical Bloggers

  • Write as if your boss and your patients are reading your blog every day
  • Comply with HIPAA
  • List your name and contact information
  • If your blog is work-related, it is better to let your employer know
  • Inquire if there are any blogging guidelines. If there are, comply with them strictly
  • Use a disclaimer, e.g. "All opinions expressed here are those of their authors and not of their employer. Information provided here is for medical education only. It is not intended as and does not substitute for medical advice."
  • Get your blog accredited by the Heath on the Net Foundation

Twitter updates:

  • Woman gets fired for calling in sick, but employer catches her online at home on Facebook. http://bit.ly/zGQjq

  • Omaha Herald: "Party busted for underage drinking after event posted on Facebook" http://bit.ly/UESdo

References:
Make Yourself Google-able
How Can a Doctor Use Google Page Creator?
Geek to Live: Have a say in what Google says about you. Lifehacker.com, also image source.
Content of Weblogs Written by Health Professionals: More Bad than Good?
Using a Blog to Build an Educational Portfolio
Becoming a Clinical Assistant Professor of Medicine and Web 2.0 Projects
How to manage your reputation online. Medical Economics, 01/2009.

Updated: 04/27/2009

Bret Michaels, Poison's lead singer has had diabetes since age 6, "rocks diabetes world"

Rockstar Bret Michaels on diabetes type I Speaking about rock music, I like Deep Purple better than Bret Michaels and Poison but you have to respect Bret for the encouragement he gives young people with diabetes type I. Anything seems possible with the current medical advancements and sensible lifestyle, including being a rock star. According to Diabetes Health: "Bret Michaels was only six years old when he was diagnosed with type 1 diabetes. Now 44 years old, he's a twenty-year veteran of the rock and roll scene as the lead singer of the eighties band "Poison." Now Bret takes three injections a day, at breakfast, again at dinner, and then a little bit at night. Bret runs around a lot on stage, so he doesn't eat like to eat much before a concert and takes very little insulin before performing. The band has deliberately built two breaks into the show, a guitar solo and a drum solo, just so that Bret can go to the dressing room under the stage and check his blood sugar. Bret's Stats: Age: 44 Years with Diabetes: 38 Injections: 55,328 Blood Tests: 110,960 Albums Sold: 25 million" Smoke on the water by Deep Purple. Why aging rock stars still tour: "Once the lights go down and the crowds roar, something magical happens. All your aches and pains go" http://buff.ly/1hfxi3x References: Bret Michaels, Diabetic Lead Singer of "Poison," Lives Life Large. Diabetes Health, 2007. Bret Michaels rocks the diabetes world. USA Today, 2002.
Survivor: After hemorrhagic stroke, followed by TIA, Bret Michaels, who has diabetes type 1, returns to stage with vigor. CNN, 2010, http://goo.gl/NB18
Bret Michaels on being "a really active dad": "Listen kids, hurry up, man. I may lose another organ" http://goo.gl/tkmQ
Updated: 06/20/2010

Interesting Articles: A Weekly Review of the "Big Five" Medical Journals

This is a collection of articles I have found interesting in the weekly editions of the "big five" medical journals: NEJM, JAMA, Annals, Lancet and BMJ (a few more journals are included occasionally). The review is a weekly feature of Clinical Cases and Images - Blog. Please see the end of the post for a suggested time-efficient way to stay up-to-date with the medical literature.

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HIV Integrase Inhibitors — Out of the Pipeline and into the Clinic.
NEJM Volume 359:416-418 July 24, 2008 Number 4

Since 2003, nine new drugs and three new drug classes, including HIV integrase inhibitors, were approved for HIV treatment. HIV integrase was a natural target for HIV chemotherapy because of both its central role in the HIV life cycle and the absence of a human homologue. Raltegravir is the first compound of this class to be approved for clinical use.

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Sildenafil Treatment of Women With Antidepressant-Associated Sexual Dysfunction: It Helped.
JAMA. 2008;300(4):395-404.

Antidepressant-associated sexual dysfunction is a common adverse effect that frequently results in stopping medications. Forty-nine patients were randomly assigned to take sildenafil (Viagra) or placebo at a flexible dose starting at 50 mg adjustable to 100 mg before sexual activity. Sildenafil treatment of sexual dysfunction in women taking SRIs was associated with a reduction in adverse sexual effects.

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Tuberculosis Among Foreign-Born Persons in the United States: Focus on individuals from sub-Saharan Africa and Southeast Asia.
JAMA. 2008;300(4):405-412.

Foreign-born persons accounted for 57% of all tuberculosis (TB) cases in the United States in 2006. A total of 47,000 cases of TB disease were reported among foreign-born persons in the United States from 2001 through 2006, of which 28% were among recent entrants (within 2 years of US entry). TB case rates remained higher than among US-born persons—even more than 20 years after arrival. 53% of TB cases among foreign-born persons occurred among the population born in sub-Saharan Africa and Southeast Asia. The relative yield of finding and treating latent TB infection is particularly high among individuals from most countries of sub-Saharan Africa and Southeast Asia.

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Cytomegalovirus Reactivation in Critically Ill Immunocompetent Patients: Important to Consider in DDx.
JAMA. 2008;300(4):413-422.

Cytomegalovirus (CMV) infection is associated with adverse clinical outcomes in immunosuppressed persons. The authors prospectively assessed CMV plasma DNAemia by thrice-weekly real-time polymerase chain reaction (PCR) and clinical outcomes in a cohort of 120 CMV-seropositive, immunocompetent adults admitted to ICU. Cytomegalovirus viremia occurred in 33%. CMV infection at any level was associated with hospitalization or death by 30 days. These findings suggest that reactivation of CMV occurs frequently in critically ill immunocompetent patients and is associated with prolonged hospitalization or death. CMV prophylaxis in this setting may be warranted.

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A time efficient way to stay up-to-date with medical literature

"How do you eat in elephant? In small bites." The same rule probably applies to staying current with the ever expanding avalanche of medical literature. One can try the following approach:

1. Subscribe to the RSS feeds of the 5 major medical journals (NEJM, JAMA, BMJ, Lancet and Annals) plus 2-3 subpecialty journals in your field of interest.


Medical Journals tab: A screenshot of iGoogle with RSS feeds from the major medical journals.

2. Read the journal on the day it is published online, for example, NEJM on Wednesdays.

3. Use text-to-speech to listen to the articles you do not have time to read.

4. Listen to journal podcasts. Click here to subscribe the podcasts of the 4 major journals in iGoogle.

Related:
5 Tips to Stay Up-to-Date with Medical Literature
Make Your Own "Medical Journal" with iGoogle Personalized Page
Share iGoogle Tabs with Medical Journals, Podcasts and Gadgets
Text-to-Speech Programs and Continuous Medical Education
Image source: OpenClipArt, public domain.

TED Talk by Benjamin Zander: "Classical music with shining eyes"


TED Talk by Benjamin Zander: Classical music with shining eyes.

Personally, I like classical music but whether you like it or not, it does not matter -- this is an amazing talk by a very gifted speaker. It is not only about music but about optimism, leadership and relationship.

From Wikipedia: "Benjamin Zander (born March 9, 1939, England) is an English-American conductor. He is the music director of the Boston Philharmonic Orchestra and a faculty member at the New England Conservatory. He is known for his interpretations of the works of Gustav Mahler and his "popular" pre-concert lectures."

Famous "Last Lecture" Professor with Pancreatic Cancer Has Died

"Randy Pausch (October 23, 1960 – July 25, 2008) was an American professor of computer science, human-computer interaction and design at Carnegie Mellon University (CMU) in Pittsburgh, Pennsylvania, and a best-selling author who achieved worldwide fame for his "The Last Lecture" speech on September 18, 2007 at Carnegie Mellon."


WSJ video

The Wikipedia page about professor Pausch details his disease course from the regular updates on his website:

"In August 2006, Pausch was diagnosed with pancreatic cancer. He pursued a very aggressive cancer treatment that included Whipple procedure surgery and experimental chemotherapy; however, in August 2007 he was told the cancer had metastasized to his liver and spleen, which meant it was terminal. He then started palliative chemotherapy, intended to extend his life as long as possible. At that time, doctors estimated he would remain healthy for another three to six months. On May 2, 2008, a PET scan showed that his cancer had spread to his lungs and some lymph nodes in his chest, and that he had some metastases in his peritoneum and retroperitoneum.

On June 26, Pausch indicated that he was considering stopping further chemotherapy because of the potential adverse side effects. He was, however, considering some immuno-therapy-based approaches.

On July 24, on behalf of Pausch, a friend anonymously posted a message on Pausch's webpage stating that a biopsy had indicated that the cancer had progressed further than what was expected from recent PET scans and that Pausch had "taken a step down" and was "much sicker than he had been." The friend also stated that Pausch was "now enrolled" in a hospice program designed to provide palliative care to those at the end of life."

References:
Professor with pancreatic cancer gives his last lesson on life, 09/2007.
YouTube's star lecturer dies at 47. CNN.
A Son's Photo Journal of His Aging Father's Decline - Photo Essays - TIME http://goo.gl/RVCt

Google Knol Collaborative Knowledge Database = Universal Textbook of Medicine?

Google Knol is a free online collaborative knowledge database or an experts' wiki but not an encyclopedia. Knol is not a direct competitor of Wikipedia, at least not in its current version. Wikipedia is anonymous -- there is no single editor in charge. In contrast, Knol includes the author name in the URL of the article. Google expects multiple knols on one subject rather than the current Wikipedia model of one article on a subject. The term "knol" ("unit of knowledge") refers to both the project and an article in the project.

There is a definite focus on medical topics -- most of the 300 or so starting "knols" are disease-based and authored by doctors. Will Google Knol be the mythical universal textbook of medicine that Wikipedia never became (and was not meant to be)? UpToDate and eMedicine are close to that concept but UpToDate is prohibitively expensive and management-focused while eMedicine is limited in coverage.

Before you get too excited about Knol, the "universal textbook," have a look at its front page which lists a wide spectrum of topics: Type 1 Diabetes, Lung Cancer, Tooth Pain, and then suddenly, "Toilet clogs: Solutions for the most common problems."


Screenshot of Google Knol text editor -- much easier to edit than Wikipedia. Image source: Google Operating System, Creative Commons license.

Search Engine Land says that Knol is a service created by Google's search quality team. "I do believe Knol does solve a search problem. The problem we have, unlocking what people know and bringing it online. This is another tool to help release some of this knowledge," explains Cedric Dupont, the product manager for Knol.

Your name is behind your knol, and it should reflect your unique point of view. Be succinct, but comprehensive on your topic of choice. Provide references, and display your credentials. Readers will want to know who you are and gain context on the knols you are writing."


An expert-written medical knol. Image source: Google Operating System, Creative Commons license.

Selected medical knols:

The Hospitalist Model of Care: The Fastest Growing Specialty In Medical History by Robert Wachter (who else?)

Nasal Polyps by Andrew Murr, UCSF

Seasonal Allergies by Paul Nadler, MD, UCSF

Asthma by John Fahy, UCSF

Chronic Obstructive Pulmonary Disease (COPD) by Stephen C. Lazarus, UCSF

Urticaria by Alan Rockoff

According to Google Blogger Buzz:

"Knol may be used to complement your blog. Blogs are great for quickly and easily getting your latest writing out to your readers, while knols are better for when you want to write an authoritative article on a single topic. The tone is more formal, and, while it's easy to update the content and keep it fresh, knols aren't designed for continuously posting new content or threading.

Except for the different format, you'll get all the things you've come to expect from Blogger in Knol. Like Blogger, Knol has simple web authoring tools that make it easy to collaborate, co-author, and publish. It has community features as well: Your readers will be able to add comments and rate your article, and, if you want, they'll be able to suggest edits that you can then either accept or reject. And, just like in Blogger, you can also choose to include ads from AdSense in your knols to perhaps make a little money.

One other important difference between Knol and Blogger is that Knol encourages you to reveal your true identity. Knols are meant to be authoritative articles, and, therefore, they have a strong focus on authors and their credentials. We feel that this focus will help ensure that authors get credit for their work, make the content more credible.

All in all, we think Knol will be a great new way for you to share what you know, inform people about an issue that is important to you, raise your profile as an expert in your field, and maybe even make some money from ads."


Video: Knol From Google.

References:
Google Knol Is Live. Blogoscoped.
Share Your Expertise in Google's Knol. Google Operating System.

Related:
The Difference Between Google Knol & Wikipedia Encyclopedia. Digital Inspiration.
Google Knol - Quick Start Guide. Digital Inspiration.
Will Knols and Blogs Upend the Cozy World of Medical Publishing? Wachter's World.
Google vs Wikipedia? No. ScienceRoll.
Is Google a Media Company? NYTimes, 08/2008.

Update 2011:

Abandoned Knol - Google Knol homepage says a lot about the current state of the project http://goo.gl/QwHl1

Content of Weblogs Written by Health Professionals: More Bad than Good?

It seems like there are few (if any) positive news stories and studies about medical blogs nowadays. Most of the coverage focuses on breaching patient privacy and inappropriate product endorsements rather than on the way blogs can be used for medical education and interactive learning. As a regular reader of 30-40 medical blogs and author of 3, I am first to admit the medical blogosphere has its problems. John Sharp from the IT department of the Cleveland Clinic and I worked on institutional guidelines for medical blogs in 2005-2006 and I gave it quite a bit of thought during the years.

The most current negative story is from the Journal of General Internal Medicine and, as you may have guessed it, none of the authors seems to have a blog:

Content of Weblogs Written by Health Professionals (full-text PDF hosted by Pharmalot).

Tara Lagu, MD, MPH, Elinore J. Kaufman, David A. Asch, MD, and Katrina Armstrong, MD, MSCE.

The authors identified 271 medical blogs. Over half (56.8%) of blog authors provided sufficient information in text or image to reveal their identities. Individual patients were described in 114 (42.1%) blogs. Patients were portrayed positively in 43 blogs (15.9%) and negatively in 48 blogs (17.7%). Of blogs that described interactions with individual patients, 45 (16.6%) included sufficient information for patients to identify their doctors or themselves. Healthcare products were promoted, either by images or descriptions, in 31 (11.4%) blogs.

The authors concluded that blogs risk revealing confidential information or, in their tone or content, risk reflecting poorly on the blog authors and their professions. The health professions should assume some responsibility for helping authors and readers negotiate these challenges.

They give plenty of examples and link to 16 blog addresses. Somehow the study authors missed some of the most popular medical blogs such as Kevin, M.D., Medgadget and GruntDoc. May be because they used commonly acceptable language or were not controversial enough but, really, how can you write about medical blogs and miss Kevin, M.D.? The guy is on the front page of Google results for both "medical blog" and "medical blogs" (we are a little bit down the list but still there). Update from 07/26/2008: Dr. RW pointed out that the authors quoted one of my posts as an example to follow in the article references: How to write a medical blog and not get fired? I guess I could be considered one of the "good guys."

These are a few quotes chosen by the study authors to highlight the content of medical blogs:

“The unwritten definition of proper patient: attached to a
breathing machine, a lot of wires and completely sedated
or even paralyzed.” Adrenalin Rush

“She was a stupid, lazy, selfish woman all of which
characteristics are personal problems, not medical
issues or barriers to care” Panda Bear MD

The quotes are obviously taken out of context but they still sound troubling. However, there are many stories of great patient care, self-sacrifice and compassion published on medical blogs but somehow they escaped the search strategy of the study authors.

Tips for Medical Bloggers

- Write as if your boss and your patients are reading your blog every day
- Comply with HIPAA
- List your name and contact information
- If your blog is work-related, it is better to let your employer know
- Inquire if there are any blogging guidelines. If there are, comply with them strictly
- Use a disclaimer, e.g. "All opinions expressed here are those of their authors and not of their employer. Information provided here is for medical education only. It is not intended as and does not substitute for medical advice."
- Get your blog accredited by the Heath on the Net Foundation

References:
Content of Weblogs Written by Health Professionals. Journal of General Internal Medicine.
Doctor Blogs Reveal Patient Info & Endorse Products. Pharmalot.
Why Physician Blogs Close Down?
Topics Discussed During the Medicine Consult Service Rotation at Cleveland Clinic in March/April 2008
Dr Flea Blogged His Malpractice Trial, Settles When Outed
Using a Blog to Build an Educational Portfolio
Medical Blog Closed Down by Request of Employer
NPR: Doctor Blogs Raise Concerns About Patient Privacy
Simply Fired - How NOT to Blog About Your Job. Especially If You Are a Doctor

Related:
Should physician blogs be held to a higher standard? Kevinmd.com.
Medical blogosphere subject of Journal of General Internal Medicine study. Notes from Dr. RW.
Another medical journal piles on. Notes from Dr. RW, 08/2008.
What is a blog? Robert M Centor, 08/2008.
As A Busy Physician, Why Do I Even Bother Blogging? http://goo.gl/fSF3 - Excellent summary.

Updated: 08/07/2008

Clinical Case: Antibiotics for Periodontal Disease (Gingivitis)

A 37-year-old male with moderate periodontal disease asks his physician about antibiotic treatment.

What are the indications and antibiotic options?

Read the rest here: Antibiotics for Periodontal Disease (Gingivitis) at ClinicalCases.org.

Image source: Cross-section of a tooth with visible gums, or gingiva, Wikipedia, GNU Free Documentation License.

Johns Hopkins Reality Series Available for Free Online Streaming from ABC

ABC has made available the full episodes of the short series "Hopkins" filmed at Johns Hopkins Hospital in Baltimore:

Hopkins, Episodes 1-5

Some time ago, I had the chance of interviewing (and being offered a position) at Johns Hopkins and my impression of the institution was very positive. The faculty seemed very focused on education. I have not visited the Mayo Clinic yet but after working at the Cleveland Clinic for a while, one have to admit that there is something special about the top 3-5 hospitals in the U.S. Obviously, they are doing something exceptional to stay at the top for so many years in a row.


Google Trends and Top Hospitals According to U.S. News and World Report

References:
Google Trends and Top Hospitals According to U.S. News and World Report
Image source: Commons.wikimedia.org.
Link via David Rothman.

What did they mean? Excerpts from discharge summaries, SOAP notes and more

Discharge Summaries

"Patient was a heavy alcoholic but now drinks a pint of whiskey every day."

"Final diagnosis: Foot drop secondary to mononeuropathies (cranial nerve)"

"Review of Systems: The patient refused to dress sometimes."

"The physical exam shows an alert, obese woman who is drowsy."

"She has a history of hypertension, of diabetes and recurrent DVT, even when fully anticoagulated with Coumadin, and for this reason she has had 11 surgeries including a right tibial fracture at age 16."

Job Interview

During a phone interview, a residency candidate replies to the question What made you study medicine?: "Initially, I really wanted to be a very good human being, but after that I chose medicine."

Diagnostic Dilemma

A nurse urgently pages a medical resident: "Mr. Doe's left half of the body is yellow!"

The resident was just about to order LFTs for jaundice workup over the phone when he realized that something did not sound right...

The patient had just returned from a left shoulder surgery and the "left side of the body" was cleaned with iodine.

Image source: OpenClipArt, public domain.

Genetically Engineered Plants and The Future of Food Documentary

The Future of Food - Introduction The Future of Food is a 2004 documentary film which looks into unlabelled, patented, genetically engineered foods that have made their way onto grocery stores in the United States for the past decade. Source: Wikipedia. Interviews with Deborah Koons Garcia, producer of the documentary film The Future of Food are available from Google Video and YouTube. Ms. Koons is the widow of the late Jerry Garcia (August 1, 1942 – August 9, 1995) who was the leader of the legendary rock band the Grateful Dead. The Future of Food: What Every Person Should Know with Deborah Garcia, 57 min, Nov 21, 2006, The Massachusetts School of Law at Andover.

Related:

"Food is risky. You can choke on a hot dog, be poisoned by a pizza or die slowly from years of eating too much" - The Economist, 2014 http://buff.ly/1k0lKBY

Interesting Articles: A Weekly Review of the "Big Five" Medical Journals

This is a collection of articles I have found interesting in the weekly editions of the "big five" medical journals: NEJM, JAMA, Annals, Lancet and BMJ (a few more journals are included occasionally). The review is a weekly feature of Clinical Cases and Images - Blog. Please see the end of the post for a suggested time-efficient way to stay up-to-date with the medical literature.

------------------

From All Walks of Life — Nontraditional Medical Students and the Future of Medicine.
NEJM, Volume 359:224-227 July 17, 2008 Number 3

"When I entered medical school at 26, I was considered to be a nontraditional student — but I was hardly alone."

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Long-Term Medical and Social Consequences of Preterm Birth: Significant.
NEJM, Volume 359:262-273 July 17, 2008 Number 3

Advances in perinatal care have increased the number of premature babies who survive. There are concerns, however, about the ability of these children to cope with the demands of adulthood. In a cohort of 903,402 infants in Norway, the risks of medical and social disabilities in adulthood increased with decreasing gestational age at birth.

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Weight Loss with a Low-Carbohydrate, Mediterranean, or Low-Fat Diet.
NEJM, Volume 359:229-241 July 17, 2008 Number 3

Mediterranean and low-carbohydrate diets (Atkins) may be effective alternatives to low-fat diets. There was a more favorable effects on lipids with the low-carbohydrate diet, and on glycemic control with the Mediterranean diet.

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Moderate-to-Vigorous Physical Activity From Ages 9 to 15 Years: Decreasing.
JAMA. 2008;300(3):295-305.

Decreased physical activity plays a critical role in the increase in childhood obesity. At least 60 minutes per day of moderate-to-vigorous physical activity (MVPA) is recommended. In a study cohort of 1000 children, measured physical activity decreased significantly between ages 9 and 15 years.

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Lipids, lipoproteins, and apolipoproteins as risk markers of myocardial infarction in 52 countries (the INTERHEART study): a case-control study.
The Lancet 2008; 372:224-233.

Whether lipoproteins are better markers than lipids and lipoproteins for coronary heart disease is widely debated. In a study of 12,461 AMI cases, the non-fasting ApoB/ApoA1 ratio was superior to any of the cholesterol ratios for estimation of the risk of acute myocardial infarction in all ethnic groups, in both sexes, and at all ages, and it should be introduced into worldwide clinical practice.

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Effect of dimebon on cognition, activities of daily living, behaviour, and global function in patients with mild-to-moderate Alzheimer's disease: a randomised, double-blind, placebo-controlled study.
The Lancet 2008; 372:207-215.

Dimebon was safe, well tolerated, and significantly improved the clinical course of patients with mild-to-moderate Alzheimer's disease. Dimebolin Hydrochloride (Dimebon) is an antihistamine drug which has been used clinically in Russia since 1983.

Ginkgo biloba and fish oils through lecithin and vitamin concoctions supposed to aid concentration, improve memory, and boost IQ. Sadly, a cool look at the evidence suggests that none are particularly helpful.

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Statins for children?
The Lancet 2008; 372:178.

The American Academy of Pediatrics has issued new guidelines on cholesterol screening and treatment recommendations in childhood: a fasting lipid profile is recommended between the ages of 2 and 10 years for children with a family history of high cholesterol or premature heart disease.

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The First Use of Penicillin in the United States.
Ann of Int Med 15 July 2008 | Volume 149 Issue 2 | Pages 135-136

The first use of penicillin in the United States occurred in 1942 and saved a moribund patient who had β-hemolytic streptococcal sepsis.

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Prehypertension during Young Adulthood Leads to Increased Coronary Calcium Later in Life.
Ann of Int Med 15 July 2008 | Volume 149 Issue 2 | Pages 91-99

High blood pressure in middle age is a well-established risk factor for cardiovascular disease, but the consequences of low-level elevations during young adulthood are unknown. Prehypertension during young adulthood is common and is associated with coronary atherosclerosis 20 years later. Keeping systolic pressure below 120 mm Hg before age 35 years may provide important health benefits later in life.

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Bullous pemphigoid and pemphigus vulgaris—incidence and mortality in the UK: Increasing.
BMJ 2008;337:a180.

The median age at presentation for bullous pemphigoid was 80 years, and 61% of patients were female. The median age at presentation for pemphigus vulgaris was 71 years, and 66% of patients were female. Incidences of bullous pemphigoid and pemphigus vulgaris were 4.3 and 0.7 per 100 000 person years. Incidences of bullous pemphigoid and pemphigus vulgaris are increasing. Both disorders are associated with a high risk of death.

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Prognosis in patients with recent onset low back pain in Australian primary care: inception cohort study.
BMJ 2008;337:a171.

In this cohort of 970 patients with acute low back pain in primary care, prognosis was not as favourable as claimed in clinical practice guidelines. Recovery was slow for most patients. Nearly a third of patients did not recover from the presenting episode within a year.

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Studying medicine in China.
Student BMJ 2008;16:235 | 18.

A British medical student discovered some surprising similarities on a recent visit.

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Relation of iron and red meat intake to blood pressure: cross sectional epidemiological study. BMJ 2008;337:a258.

Non-haem iron has a possible role in the prevention and control of adverse blood pressure levels. An unfavourable effect of red meat on blood pressure was observed: red meat intake was directly associated with blood pressure; 102.6 g/24 h (2 SD) higher intake was associated with 1.25 mm Hg higher systolic blood pressure.

------------------

A time efficient way to stay up-to-date with medical literature

"How do you eat in elephant? In small bites." The same rule probably applies to staying current with the ever expanding avalanche of medical literature. One can try the following approach:

1. Subscribe to the RSS feeds of the 5 major medical journals (NEJM, JAMA, BMJ, Lancet and Annals) plus 2-3 subpecialty journals in your field of interest.


Medical Journals tab: A screenshot of iGoogle with RSS feeds from the major medical journals.

2. Read the journal on the day it is published online, for example, NEJM on Wednesdays.

3. Use text-to-speech to listen to the articles you do not have time to read.

4. Listen to journal podcasts. Click here to subscribe the podcasts of the 4 major journals in iGoogle.

Related:
5 Tips to Stay Up-to-Date with Medical Literature
Make Your Own "Medical Journal" with iGoogle Personalized Page
Share iGoogle Tabs with Medical Journals, Podcasts and Gadgets
Text-to-Speech Programs and Continuous Medical Education
Image source: OpenClipArt, public domain.

NPR: Helicobacter Pylori Stomach Bacteria Could Prevent Asthma

Listen to the NPR story here:

"Writing in the Journal of Infectious Diseases, the scientists report that children between the ages of 3 and 13 are nearly 59 percent less likely to have asthma if they have the bacterium in their gut. The children were also 40 percent less likely to have hay fever and associated allergies such as eczema and rash."

Australians Barry J. Marshall and Robin Warren won the 2005 Nobel Prize in physiology or medicine for their discovery of the bacterium Helicobacter pylori and its role in gastritis and peptic ulcer disease.

Related:
pH or Hp - Dicoverers of the Link Between Helicobacter pylori and PUD Awarded the Nobel Prize for Medicine
Also posted on AllergyNotes blog.
H. pylori image courtesy of www.hpylori.com.au.

Goodbye to the World's Oldest Blogger, Age 108

From Official Google Australia Blog:

"Olive Riley, who, at 108, was the "world's oldest blogger," passed away last Saturday at her nursing home in near Sydney, Australia. Olive posted many YouTube vlogs retelling tales of her youth and sharing songs that helped to convey her most fundamental belief: "I want to be happy, but I can't be happy 'til I make you happy too."


Olive Riley, 108, was the "world's oldest blogger"

Nobody is too old to blog. In fact, the post-retirement years may be just the right time to share your wisdom with the world.

Studies show that staying intellectually active as growing older preserves "brain power" and delays onset of dementia. A Canadian study indicates that knowledge of more than one language (lifelong bilingualism) delays the onset of dementia by 4 years (via Slashdot).

Related:
Never Too Old For Blogging
Kirk Douglas turns blogs into his latest conquest. Reuters, 12/2008.
World's oldest blogger dies at 97. Suntimes.com, 2009.

Updated: 05/26/2009

Cartoon: The Sea


Click on the image the enlarge.

Source: xkcd.com. Creative Commons Attribution-NonCommercial 2.5 License.

Clinical Case: Staphylococcus Aureus Prostatic Abscess and More

A 50 yo male with type 2 diabetes mellitus was admitted with complaints of dysuria and non-specific abdominal pain for 1 week, accompanied by malaise followed by fevers and chills.


Figure 1. Computed tomography scan of the pelvis: The seminal vesicles are enlarged and demonstrate fluid attenuation internally. The right seminal vesicle measures approximately 3 cm in size. This fluid attenuation extends into the prostate, which is also heterogeneous and mildly enlarged. There are surrounding inflammatory changes of the perivesical fat. The urinary bladder shows minimal thickening of the wall. Delayed images show no obvious intraluminal abnormalities with further opacification of the urinary bladder.


Figure 2. Trans-esophageal echocardiogram: a vegetation in the anterior leaflet of mitral valve; doppler shows no significant mitral valve regurgitation.

Read more in Staphylococcus Aureus Prostatic Abscess Complicated By Infective Endocarditis at Clinical Cases and Images.

The author of this clinical case is Moises Auron, M.D. from the Department of Hospital Medicine, Cleveland Clinic.

Slideshow: Shells of Honeymoon Island, Florida


Click here to check the album Shells of Honeymoon Island, Florida

From Wikipedia:

"Honeymoon Island State Park is a Florida State Park located on Honeymoon Island, a barrier island. The barrier island park is a refuge for a number of species of plants and animals including south Florida slash pines, mangroves and several threatened and endangered species. Osprey and various species of tern, plover and wading birds reside on the island or stop during spring & fall bird migration."

There are more photos and videos at Hit the Road - See America and the World.

Clinical Case: Can I Get Tested for Monosodium Glutamate (MSG) Allergy?

A 50-year old female is self-referred to the allergy clinic for evaluation of "MSG allergy." She complains of nausea and headache within minutes of eating Chinese food.

The patient would like to be tested for "MSG allergy."

Do you think this patient has an allergy to monosodium glutamate (MSG)? Are there any tests for "MSG allergy"?

Read more in Intolerance to Monosodium Glutamate (MSG) at AllergyCases.org.

Image source: Crystalline MSG, Wikipedia, Creative Commons Attribution ShareAlike license.

Concept of "Long Tail" Applied to Medicine

DB's Medical Rants is a must-read medical blog, especially if you are involved in teaching of medical students, residents or fellows. The blog author is Robert Centor, the immediate past president of the SGIM, who often has unconventional ideas and bold insights and is not shy to share them online.

"The phrase The Long Tail was first coined by Chris Anderson in an October 2004 Wired magazine article to describe the niche strategy of businesses, such as Amazon.com or Netflix, that sell a large number of unique items in relatively small quantities. However, the concept of a frequency distribution with a long tail — the concept at the root of Anderson's coinage — has been studied by statisticians since at least 1946."

Dr. Centor illustrates the application of "The Long Tail" concept to medicine by listing some relative rare conditions which should be included in the differential diagnosis of pharyngitis:


Image source: DB’s Medical Rants.

Related:
Separating clinicians from automatons: the long tail. Notes from Dr. RW, 08/2008.

Updated: 08/07/2008

Video: How to Use Google Trends for Research


How to Use Google Trends Research Tool


Google Trends Tutorial

Google Trends is a fascinating tool which can be used to monitor trends in search queries on a massive scale with billions of searches. I described a few ideas here:

Recurrent Trends in Allergy-related Searches on Google

Not surprisingly, searches for "bee sting" peak every summer:



"Asthma" searches show a double-peak distribution with the highest frequency in spring and winter, with exacerbations triggered by pollens and upper respiratory tract infections, respectively:



The data can be tailored to a particular part of the world or language. If there is enough volume, for example, a popular search term, Google Trends can be fine-tuned to show data from states or even cities.

Related:
Google Trends and Top Hospitals According to U.S. News and World Report
Recurrent Trends in Allergy-related Searches on Google
Google Trends with Numbers. Google Operating System, 06/2008.
A new flavor of Google Trends. Official Google Blog, 06/2008.
Google Shows Search Volumes. Google Operating System, 07/2008.
Keyword Tool updated with search volume data. Inside AdWords, 07/2008.



Updated: 07/12/2008

Presentation: Social Media & Web 2.0 in Higher Education


A good overview of the current Web 2.0 trends in higher education by Peter Bihr from a workshop at UOC, Barcelona. Link via Dean Giustini's blog.

My own presentation on Web 2.0 use in medicine (last given in 2007) looks totally outdated in today's fast moving world. For example, Twitter was not even mentioned at the time but now I use it daily.



References:

A Doctor's Opinion: Why I Started Microblogging on Twitter

Social media in medical education - Grand Rounds presentation by IUH Med/Peds residency program director http://goo.gl/Zw3lK

Interesting Articles: A Weekly Review of the "Big Five" Medical Journals

This is a collection of articles I have found interesting in the weekly editions of the "big five" medical journals: NEJM, JAMA, Annals, Lancet and BMJ (a few more journals are included occasionally). The review is a weekly feature of Clinical Cases and Images - Blog. Please see the end of the post for a suggested time-efficient way to stay up-to-date with the medical literature.

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Electronic Health Records in Ambulatory Care — A National Survey of Physicians.
NEJM Volume 359:50-60 July 3, 2008

This is a national survey of 2758 physicians, which represented a response rate of 62%. Four percent of physicians reported having an extensive, fully functional electronic-records system, and 13% reported having a basic system. Physicians who use electronic health records believe such systems improve the quality of care and are generally satisfied with the systems.

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A Population Study of Endomyocardial Fibrosis in a Rural Area of Mozambique.
NEJM, Volume 359:43-49, July 3, 2008

Endomyocardial fibrosis is the most common restrictive cardiomyopathy worldwide. It has no specific treatment and carries a poor prognosis. Endomyocardial fibrosis is common in a rural area of Mozambique.

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New Drug Class: Crohn's disease: beyond antagonists of tumour necrosis factor.
The Lancet 2008; 372:67-81.

Therapeutic paradigm is also shifting from mere immunosuppression to the reinforcement of the intestinal barrier.

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Perspectives, The art of medicine: John Snow: the making of a hero?
The Lancet 2008; 372:22-23.

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World Report: Controlling Chagas' disease in urban Peru.
The Lancet 2008; 372:16-17.

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Related:
5 Tips to Stay Up-to-Date with Medical Literature
Make Your Own "Medical Journal" with iGoogle Personalized Page
Share iGoogle Tabs with Medical Journals, Podcasts and Gadgets
Text-to-Speech Programs and Continuous Medical Education
Image source: OpenClipArt, public domain.

Visual Dictionary Uses Mind Maps



"Visuwords online graphical dictionary helps you look up words to find their meanings and associations with other words and concepts. Produce diagrams reminiscent of a neural net. Learn how words associate.

Enter words into the search box to look them up or double-click a node to expand the tree. Click and drag the background to pan around and use the mouse wheel to zoom. Hover over nodes to see the definition and click and drag individual nodes to move them around to help clarify connections."

References:
Find Word Meanings with Visuwords – Visual Dictionary & Thesaurus. Digital Inspiration.

Related:
Free Visual Dictionary of Medical Terms by Merriam-Webster
Visual Medical Dictionary Creates Mind Maps of Related Medical Terms
ICU Mind Maps http://bit.ly/1VIVOi and http://bit.ly/2EnZLi
Medical profession's use of mind mapping - WikIT http://goo.gl/1Kjd
Note taking with mind maps did not improve the scores of medical students (study) http://goo.gl/8qeQ
Study claims mind maps don't help learning - "you should just take tests" - NYTimes http://goo.gl/kvdSZ and http://goo.gl/6ql7n

Video: What Can You Do with Your Phone?

From Google Mobile Blog:

"Mobile phones are awesome. I use mine all the time, from using it as a flashlight to find my keys, to a calendar to see just how late I am for an appointment. But people do much more interesting things than that with phones nowadays. And so the Google mobile team poses the question to you: what can you do with your phone?"


What Can You Do with Your Phone? A Google engineer shares a few tips.

A special trick for all iPhone fans out there:


Painful to watch: Blend iPhone into iSmoke.

References:
Introducing Mobile Tricks, our new YouTube channel for cell phone enthusiasts. Google Mobile Blog.

Related:
Video: Google SMS for Product Price Comparison.
Google SMS from a cellphone? Dave Taylor.

Why Physician Blogs Close Down?

Kevin, M.D. has some ideas:

"It seems that the lifespan of a medical blog is shorter than those of other fields. Over the past year, we've seen far too many health care voices go silent.

Blogging and practicing medicine often don't go hand in hand. Most of the media coverage borders on negative, focusing on patient privacy issues. Hospital administrations have shut down physician blogs. Furthermore, practicing medicine is exhausting, leaving blogging at the bottom of the priority list."

I have written on the topic before mentioning that maintaining a blog is simple, and if one enjoys the experience, there are few reasons to stop. For example, I use this blog as an educational portfolio and since education is a life-long process, it should be around for foreseeable future. In fact, I have at least 4 of them: CasesBlog (medical and tech stories), travel blog (photos and videos), AllergyNotes, and now a Twitter microblog.

Tips for Medical Bloggers

- Write as if your boss and your patients are reading your blog every day
- Comply with HIPAA
- List your name and contact information.
- If your blog is work-related, it is probably better to let your employer know.
- Inquire if there are any blogging guidelines. If there are, comply with them strictly.
- Use a disclaimer, e.g. "All opinions expressed here are those of their authors and not of their employer. Information provided here is for medical education only. It is not intended as and does not substitute for medical advice."
- Get your blog accredited by the Heath on the Net Foundation


This Google video shows it takes about 2 minutes to start a blog on Blogger.com. Creating a web site has never been easier.

Related:
My take: Mid-levels, health consultants, blogging. Kevin, M.D.
How to write a medical blog and not get fired?
Another blogger quits due to "blog fatigue"
Has Blogging Peaked?
Simply Fired - How NOT to Blog About Your Job. Especially If You Are a Doctor
Using a Blog to Build an Educational Portfolio
Images source: OpenClipArt.org, public domain.