PubMed Health⌕ Search

Biomedical subjects

W D Boyd

Publications and source records attributed to W D Boyd.

34 records · Page 2Linked to original sources
PubMed1988

Retrograde dissection of the left main coronary artery after endarterectomy: a rare complication.

The case of a 72-year-old woman who died after bypass grafting and endarterectomy of the left anterior descending coronary artery is described. At autopsy a large intramural dissection of the left anterior descending artery that extended proximally to the left main ostium from the endarterectomy site was found. The dissection was associated with clotting of the false lumen and of the graft, and with a myocardial infarct that precipitated this woman's intraoperative death.

Aged↗
PubMed1982

Problems in caring for the elderly mentally infirm at home.

The supporters of psychogeriatric patients attending 5-day hospitals were asked to complete questionnaires concerning the particular problems they experienced in caring for their patients at home. The information provided by the supporter was then related to measures of mood, self-reported strain, and outcome 12 mth from the patients' first attendance. The results pointed to the importance of problems reflecting attentional and emotional demand from such patients, in determining the level of strain, and the supporters' capacity to continue to care for the patient in the community.

Aged↗
PubMed1981

Reality orientation and dementia: a controlled trial of two approaches.

Classroom Reality Orientation was investigated with a sample of dements drawn from a psychogeriatric hospital and an old people's home. Treatment effects were examined on a range of cognitive and behavioural measures, and compared with the effects of a specific behaviourally directed orientation training in the ward. Class RO improved cognitive functioning but not behaviour, irrespective of degree of dementia. Highly significant behavioural change was demonstrated for ward behaviour orientation training and this technique is not only cheaper but has potential in managing dements.

Aged↗
PubMedDate not supplied

The pupillary response to light in the turtle.

When intense adapting lights are turned off, the pupil of the turtle, Pseudemys scripta elegans, enlarges. The recovery functions for pupillary dilation have different time constants that are defined by red- and green-sensitive cones and rods as they are affected by prior light adaptation and time in the dark. Pupillary area related to dilation responds over at least a three- to four-fold range. Following white-light adaptation, the course of pupil dilation in the dark shows a three-legged curve of differing time constants. With spectral-light adaptations, the contributions of separate classes of photoreceptors can be isolated. Red- and green-sensitive cones contribute shorter time constants of 3.31 and 3.65 min to prior white-light adaptation--4.81 and 4.18 min to prior spectral-light adaptations. Rods contribute a much longer time constant of 6.69 min to prior white-light adaptation--7.60 min to prior spectral-light adaptation. The ratios are in keeping with the flash sensitivities of photoreceptors in this same animal, as well as with psychophysical visual threshold mechanisms of color sensitivity.

Adaptation, Physiological↗
PubMedDate not supplied

Chylous ascites following abdominal aortic aneurysmectomy: surgical management with a peritoneovenous shunt.

The development of chylous ascites after emergency repair of a ruptured abdominal aortic aneurysm (AAA) is an extremely rare complication with potentially grave mechanical, nutritional, and immunologic consequences. A 54-year-old man with recurrent, symptomatic chylous ascites ultimately required insertion of a peritoneovenous shunt after non-operative measures failed to provide relief. This is the fourth reported case of chylous ascites following ruptured AAA and only the second treated by peritoneovenous shunt placement.

Aorta, Abdominal↗
PubMedDate not supplied

Survival after spontaneous primary left main coronary artery dissection. Acute surgical intervention with the Jarvik 7-70 artificial heart.

Spontaneous primary dissection of a coronary artery is extremely rare, and when it involves the left main trunk the outcome is catastrophic. A 41-year-old woman who survived such a dissection and resultant myocardial infarct with cardiogenic shock is reported here. The patient required a Jarvik 7-70 artificial heart to sustain life until an orthotopic cardiac transplant was performed, and she is now alive and well.

Adult↗