Saturday, July 25, 2009
Summer break
Thursday, February 19, 2009
Stress and Dept of U.S. Medical Students
Saturday, November 29, 2008
On Acute Radiation Syndrome (radiation sickness)
The following text presents some introductory concepts of radiation and exposure. This topic is complex and links are provided for additional reading.
In the last couple of months I have been reading about effects of radiation on the human body. This renewed interest came after the April anniversary of the Chernobyl Disaster during which the firefighters and plant workers that responded to the accident received a lethal dose of radiation. Those workers and firefighters developed what is called Acute Radiation Syndrome (ARS) or radiation sickness. Furthermore, I have learned that high radiation exposure can occur not only in nuclear power plants, but in nuclear waste reprocessing plants, research institutions, hospitals, and facilities specializing in food irradiation.
Radiation & Dose Basics
Radiation is energy released by atoms undergoing decay. This energy can be converted to heat, as in nuclear reactors, and in biological tissues this energy can cause ionizations. The ionizing radiation can be in the form of alpha, beta, gamma, electrons. [2]
Amount of such radiation is characterized by a dose. The commonly used SI unit is Gray (Gy) with units J/kg [3]. Gray describes how much energy has been absorbed per unit of mass. For example, an 80 kg person that received a dose of 10 Gy had absorbed 800 Joules of energy from particles (alpha, beta, gamma, etc.) that have hit the tissue.
Radiation has a destructive effect on the body; whereas some amount is tolerable, certain amounts are lethal. Acute Radiation Syndrome (ARS) occurs when body is exposed to large radiation doses within a short period of time. The amount of time is critical, for example nuclear plant workers receive small doses over years, which might not be tolerable if received all at once in a matter of seconds. The dose we are talking about is at least 0.5 Gy to produce mild symptoms and with 3.5+ Gy causing severe symptoms with LD50/30 (50 % of those exposed will die within 30 days if left untreated).
For a detailed discussion on physiologic effects look at a June 2004 article from Annals of Internal Medicine titled Medical Management of the Acute Radiation Syndrome [4]
The following video shows soldiers on the roof of the containment building of the Chernobyl NPP. These people are using shovels to clean up radioactive graphite following the explosion. All of these people received lethal doses of radiation.
Sources:
[1] A technical explanation of dosimetry with equations link
[2] Radiation (wikipedia)
[3] Gray (Gy) (wikipedia)
[4] Medical Management of the Acute Radiation Syndrome link to article
Tuesday, April 29, 2008
Very Hard Life - Doctors in Iraq
[1] Mother Jones Magazine (link)
[2]Counterpunch.org (link)
This is an eye-opening article by a university professor from
[3] CBS News (link)
A journalist reporting on Mahdi Army control of hospitals in Baghdad.
An article of a personal account by a physician from a private hospital in
Image Sources
Image-1: wounded in Iraqi hospital (Reuters)
Image-2: Iraqi doctors in
Sunday, March 09, 2008
Treating AF - A look at Cox Maze IV procedure

Surgical Procedure
In the 1980s James Cox, MD developed a procedure that involved making scars on the atria in a certain pattern such that normal electrical signal conduction would be restored (The pattern of these scars resembles a maze). The original procedure was called Cox-Maze III, and was quite challenging. The latest advancement came in 2006, when surgeons from University of Washington, St. Louis integrated bipolar radiofrequency device, in what became known as Cox-Maze IV. The procedure uses radiofrequency to create scars, instead of the manual incisions and suturing.
Read the journal article, The Cox-Maze IV procedure for lone atrial fibrillation for an in-depth discussion.
Tuesday, February 19, 2008
Don't See Your Doctor Right Before Graduation - A Lesson in Health Insurance
Now there are some nuances. Pre-condition is usually present in "cheap" insurance. I say this because even the cheapest, descent insurance is $300.00+/month. Good health plans, usually offered through employers, don't have pre-condition stuff. But the health plan advertisements you might get from your school or mail, are usually crap.
The lesson:
1. Don't go to your doctor right before you graduate, wait till you get health coverage through med school or job following graduation.
2. Get COBRA coverage. Its usually offered through your parents' plan an will give you the coverage you previously had under their plan but with a monthly premium ($300.00-$400.00/month).
3. DO NOT be without health insurance. Get a basic plan which you can afford. The worst thing is to be without nothing b/c a couple nights at the hospital can cost you the equivalent of a down payment for a house. The $200.00-$300.00/month will save you thousands in case something happens (and since you are young and very active it probably will)
My Interview Impressions & Experiences

There was a number of schools that impressed me due to their program and facilities. For example, Mount Sinai had the best view of any school, the Central Park. Their anatomy lab faces the Central Park and is an impressive site. The location is nice too, and the living cost is reasonable ($800.00) for a shared apartment, which is great for NYC. Ohio State impressed me with their Asian and

Advice:
1. Go to every interview!
Even if you have an acceptance somewhere don't become complacent. Give yourself as many options as possible; you spent all that time studying and applying, interviewing is the fun part. Personally, there were schools that I thought I would not like at all, but was very impressed when I was actually there.
2. If you can avoid hotel stay, do so.
It is sometimes tough, but I did one red-eye and it worked out well for me.
3. Carry-on luggage only (or at least put your suit in there).
I was at Philly and was waiting for my luggage for an hour, only to find out that I was at the wrong luggage place. Thankfully I got my luggage, but I was getting ready to attend the two interviews in jeans and a smelly t-shirt.
4. The two interview questions I encountered most:
a. Why do you want to go to this school?
b. What are your three (3) strengths and three (3) weaknesses?
5. How you feel about the interview does not necessarily predict the outcome.
At the beginning I naturally felt that a positive interview would somehow result in an admission letter. But this is not the case; I was at an interview that I thought went terrible and yet I got what I wanted.
At this point I am still unsure as to where I will go next year, but I will keep you posted.
Sources:
Central Park Image: www.edsphotoblog.com
Beach Image: http://www.siestakeyassociation.com/Images/siestakeybeach.jpg
About Me
- Medical & Engineering
- Currently a medical student, sharing articles and noteworthy information in the field of medical technology and medicine.