Facial fractures and related injuries: a ten-year retrospective analysis.

A retrospective analysis of 828 patients with significant midface or mandibular fractures was undertaken to illustrate the multisystem nature of traumatic injuries associated with fracture of the facial skeleton, covering the period from 1985 to 1994. Special emphasis was placed on determining associated injuries sustained as well as epidemiological information. The experience presented differs from other large series in the literature in that the predominant mechanism of injury is motor vehicle accidents (67%) rather than assaults.

Cardiovascular activity of Carnigen in normotone and in experimentally hypotone dogs.

Activity of Carnigen on the cardiovascular system, following intraduodenal and intravenous application, was investigated in normotone and hypotone dogs anaesthetized with sodium pentobarbital, 35-40 mg/kg intraperitoneally. Intraduodenal application of 1 and 3 mg Carnigen/kg caused an increase in blood pressure and tachycardia. The total peripheral resistance was lessened, in normotone as well as hypotone dogs, whereas the cardiac output and stroke volume were augmented.

[Effect of thoracotomy on the contractility parameters of the left heart ventrilce in dogs].

The influence of thoracotomy on blood pressure, heart rate as well as maximal rate of pressure rise in the left ventricle (dp/dtmax), left ventricular pressure, left ventricular end-diastolic pressure, and the parameters (see article) and (see article) was studied in anaesthetized and relaxed dogs, which were artifically respired using a Bird-Mark-8-respirator. The opening of the thorax leads to the following changes in+ the cardiovascular parameters: The mean arterial blood pressure was initially raised 9%. The heart rate increased by a few beats after the thoractomy, followed by a slow continuous drop so that a slight bradycardia was registered in the late phases of thoracotomy.