Systems

Tailoring Colon Cancer Screening

October 29, 2009
Tailoring Colon Cancer Screening

Guidelines for Colorectal Cancer Screening and the Recent Evidence Behind Them

 Nazia Hasan, MD MPH

Faculty peer reviewed

For most residents, screening for colorectal cancer (CRC) may seem as established as that for breast and cervical cancer. In reality, the use of CRC screening has only recently approached that of screening for those other malignancies. We have seen recently changes to the CRC screening guidelines last published by The American College of Gastroenterology in 2000.…

Read more »

Mystery Quiz- The Answer

October 27, 2009
Mystery Quiz- The Answer

Vivian Hayashi MD and Robert Smith MD, Mystery Quiz Section Editors

The answer to the mystery quiz is thoracic splenosis. The key to the solution is the past medical history of a gunshot wound. Shrapnel is seen on the plain CXR (Image 1) as well as in the soft tissue of the back (Image 5). The CXR also shows a lateral diaphragmatic abnormality (Image 1, arrow) likely due to adhesions. The left upper quadrant is notable for colonic gas where one…

Read more »

Mystery Quiz

October 23, 2009
Mystery Quiz

Vivian Hayashi MD and Robert Smith MD, Mystery Quiz Section Editors

A 61 year old man was referred to the pulmonary service for an abnormal pulmonary function test (PFT). The patient was a lifelong smoker and had symptoms suggestive of obstructive sleep apnea. The PFT showed a mixed obstructive and restrictive defect. The latter abnormality was considered to be out of proportion to the patient’s obesity, hence a chest CT scan was obtained to evaluate for possible parenchymal lung disease (shown…

Read more »

How to interpret troponins in renal disease?

October 21, 2009
How to interpret troponins in renal disease?

Ivan Saraiva MD

Case: A 68-year-old man, with a history of stable angina and end-stage renal disease treated by hemodialysis for the past three years, presents to the hospital with leg swelling and shortness of breath. He also complains of intermittent chest pain unrelated to exertion. Physical exam reveals bilateral pitting lower extremity edema, pulmonary crackles, and an elevated jugular venous pressure. Initial electrocardiogram is notable for some nonspecific repolarization abnormalities. Troponin I levels drawn at 0, 6, and 12 hours…

Read more »

It’s Lyme Season: How Should You Manage the Tick-bitten Patient?

October 14, 2009
It’s Lyme Season:  How Should You Manage the Tick-bitten Patient?

Joshua Allen-Dicker

Faculty peer reviewed

A healthy 42-year old patient presents to your office after a day of hiking with his family in Upstate New York. This morning in the shower he found a “big black tick” on his right leg. He is currently asymptomatic and wants to know what his risk of Lyme disease is.

For New York City physicians, the end of summer and beginning of fall herald a spike in cases of Lyme Disease.…

Read more »

Medicine by the Numbers

October 9, 2009
Medicine by the Numbers

Chris Tully MD

Faculty peer reviewed

What is the number of patients needed to prophylax to prevent an episode of venous thromboembolism in a hospitalized medical patient?

 

 The use of prophylactic anticoagulation for venous thromboembolism (VTE) is considered standard of care in the inpatient medical setting in order to prevent deep venous thrombosis (DVT) and fatal and nonfatal pulmonary embolism (PE). While a majority of the knowledge stems of post-surgical patients, there…

Read more »

What is Wellens’ Syndrome?

October 7, 2009
What is Wellens’ Syndrome?

Erin Ducharme MD

Faculty peer reviewed

Wellens’ syndrome refers to a pattern of ECG signs occurring during chest-pain free periods in patients with unstable angina, heralding critical, proximal left anterior descending artery (LAD) stenosis . The eponym honors Dr. Hein J.J. Wellens who first described this ECG phenomenon in 1982. Wellens and colleagues identified a subgroup of patients with unstable angina who demonstrated a pattern of inverted precordial T-waves which strongly correlated with early large anterior myocardial infarction (MI)…

Read more »

Sleep, Memory, and Medical Students

October 2, 2009
Sleep, Memory, and Medical Students

Megan Mulligan

Faculty peer reviewed by Dr. David Rapoport

The role of sleep in memory formation is an intriguing topic that has garnered widespread interest among researchers in recent years. The subject has seen a doubling in the number of publications every decade, yet the mechanism by which memories are formed remains elusive. There is little debate that sleep is important for memory, which begs the question: What does the role of sleep in memory imply for the infamously…

Read more »

When Should You Obtain a Renal Biopsy? Indications, Risks, Follow-up and Value

September 30, 2009
When Should You Obtain a Renal Biopsy? Indications, Risks, Follow-up and Value

Frederick Gandolfo MD

Faculty peer reviewed

At a recent conference on renal transplantation, the importance of early renal biopsy for the diagnosis of acute rejection was emphasized. As busy practitioners of general internal medicine, we rarely have the opportunity to learn the details of a subspecialty procedure such as renal biopsy. However, knowing the details of these procedures is important in providing care for these specific patients. What are the indications, risks, and follow-up care required for the renal…

Read more »

The Forgotten Influenza of 1918: When a Strong Immune System Becomes a Weakness

September 23, 2009
The Forgotten Influenza of 1918: When a Strong Immune System Becomes a Weakness

Emily Breidbart

Faculty peer reviewed

As the threat of the swine flu surfaced in early 2009, doctors and the media referenced the influenza of 1918. Also known as the Spanish flu, this pandemic spread to nearly every part of the world and killed more humans than any other disease in a similar period in known history. According to an epidemiological study done in 2002, this unusually virulent strain of influenza A, subtype H1N1, is said to have killed approximately 50 million…

Read more »

Diseases 2.0: Rheumatoid Arthritis

September 18, 2009
Diseases 2.0: Rheumatoid Arthritis

Diseases 2.0 – Bringing you the latest updates on disease pathophysiology and treatment

Rachana Jani MD

Faculty peer reviewed

Rheumatoid arthritis is a well-recognized but enigmatic disease afflicting the lives of thousands of individuals each year. The mysterious nature of RA has become increasingly uncovered as research has mapped various pathways of cytokine production and interleukin activation. However, in practice, we use clinical criteria to diagnose RA and evaluate the effectiveness of these new therapies.Though soon to…

Read more »

The Utility of GlycoMark ™: 1,5 Anhydroglucitol as a Marker for Glycemic Control

September 16, 2009
The Utility of GlycoMark ™: 1,5 Anhydroglucitol as a Marker for Glycemic Control

David R. Friedmann MD

Faculty Peer Reviewed

Hemoglobin A1 (Hb A1c) is the standard method for monitoring diabetic patients’ long-term glycemic control by indicating average blood glucose levels over a period of two months, or half of the average life span of red blood cells. A new biochemical marker GlycoMarkTM is a test that measures serum levels of 1,5-anhydroglucitol (1,5-AG), a monosaccharide derived from ingestion of food, slightly different in structure from glucose. The test has been available in…

Read more »