Biomedical subjects

D M Behrendt

Publications and source records attributed to D M Behrendt.

At least 91 records · Page 5Linked to original sources

PubMed1976

The treatment of acute traumatic rupture of the aorta: a 10-year experience.

Forty-three patients with aortic rupture secondardy to blunt trauma have been treated at the University of Micigan within the past 10 years with an overall salvage rate of 70%. The diagnosis should be suspected in anyone who has sustained a high speed decelerating injury, if the chest roentgenogram shows media-stinal widening, whether or not there is hypertension of the upper extremities; systolic murmur, or external evidence of chest injury. Aortography should be employed to confirm the diagnosis and to determine the site or sites of rupture. Repair of the lesion should be undertaken as soon as possible and takes priority in most instances over associated injuries. Repair in almost all cases can be accomplished safely and quickly using a bypass shunt without the aid of extracorporeal circulation.

Accidents, Traffic↗

PubMed1975

Evaluation of myocardial function.

In assessing myocardial contractility one may examine isolated heart muscle, the isolated whole heart in controlled circumstances, or the heart in an intact patient. In each situation a number of different indices of contractility may be recorded, each of which has merit but none of which is perfect. Some reflect events occurring during isometric contraction prior to ejection, such as rate of change in intraventricular pressure, maximum velocity of muscle shortening, and velocity of shortening of contractile elements. Others reflect ejection phenomena such as stroke volume, the Starling curve, and the ejection fraction. None of these indices is entirely independent of preload, afterload, and heart rate, and these factors must be controlled. In the whole heart, especially in a clinical setting, this may be difficult. Many clinical studies of myocardial function fail to recognize the need for controlling these variables and therefore are of limited validity.

Cardiomyopathy, Hypertrophic↗

PubMed1975

Complications of pulmonary resection.

The following complications of pulmonary resection are discussed with reference to their frequency of occurrence, etiology, diagnosis, and treatment: pulmonary insufficiency, arrhythmias, residual intrapleural air spaces, prolonged air leaks, postpneumonectomy empyema, bronchopleural fistula, cardiac herniation, lobar gangrene, esophagopleural fistula, pulmonary embolism, and tumor embolism.

Arrhythmias, Cardiac↗

PubMed1975

The Blalock-Hanlon procedure. A new look at an old operation.

The Blalock-Hanlon procedure has been carried out in 48 neonates with 10 early deaths (21%). This compares favorably with the reported early mortality for balloon atrial septostomy. Most striking have been the length of palliation, freedom from complications, and low incidence of late death among these patients. In contrast, reported series of balloon septostomies have shown a high incidence of strokes, repeat hospitalization, inadequate palliation, and late deaths. Since palliation is reliable following a Blalock-Hanlon procedure, we do not favor early correction with hypothermic arrest but recommend it at 12 to 18 months of age, when conventional perfusion can be easily utilized.

Heart Atria↗

PubMed1975