Cardiomyopathy induced by sinus tachycardia in combat wounded: a case study.

Tachycardia induced cardiomyopathy is a potentially lethal cause of heart failure generally because of atrial tachycardia and less frequently ventricular tachycardia. We present two cases of Marines with severe traumatic blast injuries secondary to improvised explosive device attacks whose hospital courses included amputation, massive blood transfusions, and multiple surgeries. Both patients had prolonged sinus tachycardia averaging >110 beats per minute and developed depressed left ventricular function, which recovered when treated with β blockers.

Smokeless tobacco use among military flight personnel: a survey of 543 aviators.

Introduction: Although there has been a steady decline in smoking rates among adults in the United States in recent years, the consumption of smokeless tobacco (ST) continues to increase. Moreover, ST use in the U.S.