Straight Through the Heart

Pacemaker lead-straight through the heart.

1 of 2 DESCRIPTION A 45-year-old female patient, was admitted with recurrent syncope of 1 month duration. An emergency temporary transvenous right ventricular pacing electrode was placed for complete heart block. The patient developed chest pain and giddiness the following day and electrocardiogram revealed failure to capture and undersensing, with right bundle branch block morphology ( fi gure...

A journey straight through the heart: the story of a bullet.

Shunt malformations caused by a prior cardiac gunshot accident are a very rare cause for late deterioration of ventricular function. This case describes the long-term echocardiographic findings in a patient with a cardiac gunshot at age 13, presenting with progressive signs of congestive heart failure 25 years later.

Targeted coronary post-mortem CT angiography, straight to the heart

Soon after the discovery of x-rays in November, 1895, by Wilhelm Conrad Röntgen, the first post-mortem radiographs were obtained; one example being the post-mortem angiography done by Haschek and Lindenthal in January, 1896. However, it took the pioneering work of Richard Dirnhofer and Michael Thali with their Virtopsy group to regain wider attention for post-mortem radiology and more specifica...

Vibroacoustical Energy Flow through Straight Pipes

At lower relative (i.e., non-dimensional) frequencies, four propagating waves exist in fluid-filled pipes. Each of these waves carries energy in the pipe wall, while three waves carry energy in the fluid as well. The otherwise fairly complex dispersion laws for waves in pipes simplify in the frequency region considered to simple rodand beam-type laws. It is shown that these laws can be determin...

Straight from the Heart: Mississippi Tobacco Control Program