Tuesday, 19 January 2016

NEJM Week of 10th September 2015 (#7)

Professor Brian Andrews NEJM Recommendations for Medical Students and Tutors

Week of the 10th September 2015 (#7)
University of Notre Dame Australia
(Fremantle campus)

Articles Recommended for Medical Students

REVIEW ARTICLE

Cannabinoids in the Treatment of Epilepsy

This is a review of the CNS receptor binding by cannabinoids and possible role in seizure prevention. No real data from RCT to indicate they are effective in seizure prevention but may play a limited role in children with subgroups of severe epilepsy, not responsive to standard therapies. With increasing legal use of cannabis in the US (really a means for states to raise taxes for health care and infrastructure), the authors lament the “use of medical cannabis could go the way of vitamin and nutritional supplements, for which the science never caught up to the hype and was drowned out by unverified claims, sensational testimonials and clever marketing.” Store the link for future reference.
Recommended learning: Biology of epilepsy, clinical types and management

CASE RECORDS OF THE MASSACHUSETTS GENERAL HOSPITAL

Case 28-2015 — A 32-Year-Old Man with Fever, Headache, and Myalgias after Traveling from Liberia

A very interesting public health and ID read about the precautions taken where a haemorrhagic disease virus, such as Ebola, is suspected within the community. In Perth, the designated quarantine hospital is SCGH.
Recommended learning:  Fever in the returning traveller and the causes (MED300 clinical case)

IMAGES IN CLINICAL MEDICINE

A Viper Bite

This was regarded by the MED300 medical groups as the most significant article in this week’s journal!!
Recommended learning: Male reproductive health and envenomation

Important Articles Related to Mechanisms of Disease and Translational Research

ORIGINAL ARTICLE
BRIEF REPORT

Chimeric Antigen Receptor T Cells against CD19 for Multiple Myeloma

An interesting article describing the use of autologous T cells that had been transduced with an anti-CD19 chimeric antigen receptor in a patient with refractory IgA myeloma with excellent response at 12 months. The authors speculate as to how this might work, given that only 0.05% of the plasma cells in the marrow were CD19 positive.
Recommended learning: Multiple myeloma and MGUS; cell biology of the proteasome; how do alkylating agents work? cytokine release syndrome; principles and indications for autologous stem cell transplantation

ORIGINAL ARTICLE

Eculizumab in Pregnant Patients with Paroxysmal Nocturnal Hemoglobinuria

The anti-C5 monoclonal antibody in pregnant patients with PNH resulted in a marked reduction in maternal complications, including mortality, and a high rate of fetal survival.
Recommended learning: The complement system in biology, in particular the inhibitors of complement activation and their associated with cell membranes, particularly in PNH; causes of intravascular haemolysis and how this differs from extravascular haemolysis; causes of “thrombophilia” which result in both venous and arterial thrombosis.

ORIGINAL ARTICLE

Cyclosporine before PCI in Patients with Acute Myocardial Infarction


EDITORIAL

Targeting Myocardial Reperfusion Injury — The Search Continues

This article and editorial show that pre-treating patients with STEMI (within 6 hours) with cyclosporine prior to PCI did not improve the 12 month primary outcomes over the cyclosporine untreated group (the hypothesis was that cyclosporine would stabilize the inner mitochondrial membrane pores by inhibiting cyclophilin D and would reduce reperfusion injury). This is an interesting study considering that the same group were the only ones that had previously demonstrated a cardioprotective effect of cyclosporine in this setting (published also in the NEJM). However, in this study, the authors changed the formulation of the cyclosporine to reduce the risk of anaphylaxis, but at the same time possibly invalidating this very expensive current study??
Recommended learning: The biology of reperfusion injury; biology of the mitochondrion; MOA, indications and side effects of cyclosporine and tacrolimus

Other areas which may be of interest to medical students
Perspective

Medicine's Wild West — Unlicensed Stem-Cell Clinics in the United States

http://www.nejm.org/doi/full/10.1056/NEJMp1504560

 

ORIGINAL ARTICLE

Bivalirudin or Unfractionated Heparin in Acute Coronary Syndromes

http://www.nejm.org/doi/full/10.1056/NEJMoa1507854