Search PubMed⌕ Search

Biomedical subjects

R L Wilson

Publications and source records attributed to R L Wilson.

At least 73 records · Page 4Linked to original sources
PubMed1980

Flexor profundus injuries treated with delayed two-staged tendon grafting.

Eleven patients with flexor profundus avulsions or severances recognized more than 6 weeks following injury were treated with delayed two-stage tendon grafting. Twelve profundus grafts were performed. All were young, well-motivated men. Total active motion improved from 166 to 244. Grip strength was significantly improved in eight patients. One graft ruptured requiring a secondary repair and two tenolyses were performed.

Adolescent↗
PubMed1980

Angiocardiography and exercise testing at one month after a first myocardial infarction.

The results of exercise testing (77 patients), left ventriculography and coronary arteriography (78 patients) are presented for men under the age of 60, one month after a first myocardial infarct. Cineangiocardiography revealed that patients with anterior infarction (n = 25) had both poorer left ventricular function and more totally occluded vessels than those with either inferior (n = 33) or subendocardial infarction (n = 20). In contrast, patients with inferior and subendocardial infarction had a greater proportion of myocardium supplied by sub-total lesions likely to be haemodynamically significant (75%-99% cross sectional area loss). Subendocardial infarction was also characterised by the best left ventricular function and the fewest number of total coronary occlusions. Stress testing showed that the combination of ischaemic ST segment changes and angina during exercise was 91% predictive of severe coronary disease (equivalent to triple vessel disease) while no angina in the presence of a negative test was 81% predictive of mild or moderate disease. Stenoses of 75%-99% cross sectional area loss were more common when angina occurred during exercise testing, and both angina and ischaemic ST segment changes occurred within ten minutes in all four patients with haemodynamically significant left main coronary artery lesions. Our data supports the usefulness of exercise testing after a first myocardial infarct and may provide valuable baseline information in the analysis of long term prognosis.

Angiocardiography↗
PubMed1980

Oesophageal diverticula: principles of management and appraisal of classification.

In this paper we review a consecutive series of 50 oesophageal diverticula, appraise clinical features and methods of management, and suggest an improvement on the World Health Organization classification. The link between oesophageal diverticula and motor disorders as assessed by oesophageal manometry is stressed. It is necessary to correct the functional disorder as well as the diverticulum if it is causing symptoms. A revised classification could be as follows: congenital--single or multiple; acquired--single (cricopharyngeal, mid-oesophageal, epiphrenic other) or multiple (for example, when cricopharyngeal and mid-oesophageal present together, or when there is intramural diverticulosis.

Adult↗
PubMed1979

Ultrasonic demonstration of myometrial contractions in intrauterine pregnancy.

An incidental finding associated with ultrasound examination of early intrauterine pregnancy is transient thickening of a limited region of the myometrium, which we interpret as a localized contraction. Contractions were demonstrated in nearly all 881 patients examined and were shown to significantly change in configuration within a 30 min period. In all except one patient, the contractions were completely asymptomatic, and they seem to be of no discernible clinical significance.

Adolescent↗
PubMed1978

Splenic subcapsular hematoma--ultrasonic diagnosis.

In five patients with varying histories of blunt abdominal trauma, examinations were carried out with ultrasonography and other imaging modalities. In all five patients, large, fluid-filled masses were noted in the left upper quadrant. Two patients had nonpalpable hematomas, but examinations were done because of history and vague clinical symptoms. Three patients had palpable masses. In all five patients there was surgical confirmation of the ultrasonic findings, and all recovered without complications. Ultrasonic tomography offers a convenient noninvasive method for assessing suspected splenic hematoma and can also exclude the possibility in a careful examination.

Abdominal Injuries↗
PubMed1977

The antepartum findings of conjoined twins.

Various estimates abound as to the incidence of conjoined (Siamese) twins, but they are indeed uncommon. The probability of their occurance has been calculated to be once in every 12,000 to once in every 100,000 deliveries. Although uncommon, the antepartum diagnosis can be extremely important to the twins and the mother, if only to spare the trauma of a trial by labor. The findings, both radiographic and ultrasonic, are presented herein.

Female↗
PubMed1976

An animal model for experimental echocardiographic studies.

An open-chest canine model for acute experimental echocardiographic studies is described. The ultrasound transducer is placed on the exposed anterior epicardial surface, fixed in place to minimize transmitted motion or excessive pressure on the heart, and directed to record various intracardiac structures. Good recordings can be obtained from the interventricular septum, posterior left ventricular wall, and the mitral and pulmonic valves. Structure identification is facilitated by use of an ultrasound contrast technique. Alterations of normal motion in response to physiologic, pathophysiologic, and pharmacologic interventions can then be assesed. Potential uses of the model are discussed.

Animals↗