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Biomedical subjects

M A Robbins

Publications and source records attributed to M A Robbins.

42 records · Page 3Linked to original sources

Open reduction of sacral fractures using transarticular implants at the articular facets of L7-S1: 8 consecutive canine patients (1995-1999).

OBJECTIVE: To describe and evaluate facet stabilization as an aid for open reduction and fixation of sacral fractures. STUDY DESIGN: A clinical case series. STUDY POPULATION: Eight consecutive client-owned dogs with sacral fractures. METHODS: A combination of a standard lateral approach to the ilium and a dorsal approach to the articular facets of L7-S1 was performed. The articular facets were reduced and stabilized with a Kirschner wire or a combination of a Kirschner wire and a cortical screw. Primary stabilization of the sacrum was then accomplished using a cortical screw inserted from the lateral aspect of the ilium, through the sacral fracture into the body of the sacrum. Accuracy of reduction, position of the implants, percent screw depth/sacral width, pelvic canal diameter ratio, and complications were assessed using radiographs and physical examination. RESULTS: Mean sacral fracture reduction was 91% immediately after surgery, and was 87% when measured at follow-up examinations. Mean screw depth/sacral width was 66%. Mean pelvic canal diameter ratio was 1.12 postoperatively and 1.03 at the 4- to 6-week reevaluation. Six of the 8 dogs were using the leg well 10 to 12 days after surgery; none had clinically detectable neurologic deficits. The long-term (mean, 2.7 years) outcome for these dogs was good (normal to grade I lameness). CONCLUSION: Fixation of the L7-S1 facet joints facilitates repair of sacral fractures.

Animals↗

Transferring dying nursing home residents to the hospital: DON perspectives on the nurse's role in transfer decisions.

This qualitative study elicits factors that influence decision-making by nurses about transferring a dying resident from the nursing home to the hospital. Focus groups with directors of nursing (DONs) from long-term care facilities revealed those decisions are influenced by knowledge (or lack thereof) of resident or family preferences, nurse interactions with physicians, nursing home technological and personnel resources, and nurse concerns about institutional liability. DONs can improve transfer decisions by communicating with all parties, clarifying nursing home processes for end-of-life care, and scheduling early and thorough conversations with residents and families about end-of-life care. DONs can implement improvements through staff education on communication issues, rigorous evaluation and performance outcome measures related to patient transfer, and conveyance to staff of the institution's mission and the nursing service's values.

Decision Making↗

Validity of a short form of the category test in relation to age, education, and gender.

Data for 289 subjects participating in an ongoing study of neuropsychological test performance were used to evaluate the relationship between age and prediction of performance on the long form of the Halstead-Reitan Category Test (CAT) from a short form developed by Calsyn, O'Leary, and Chaney (1980). The major questions were whether: (a) age, education, or gender would add to prediction of long (Y) from short form scores (X); (b) regression equations would be different for older and younger groups; (c) percent variance accounted for in long form scores by short form scores would be larger for younger as opposed to older subjects. For these relatively healthy subjects, prediction based on the short form was not enhanced in a clinically significantly manner by adding age, education, and gender as predictors. Regression equations for older and younger groups differed in intercept values but not in slopes. Percent variance accounted for in long form scores from short form scores did not differ when separate equations were used for younger and older subjects.

Adolescent↗

Unmedicated blood pressure levels and quality of life in elderly hypertensive women.

We examined the associations between unmedicated systolic and diastolic blood pressure (BP) levels and measures of quality of life (QOL). Women (N = 315) ranging in age from 60 to 80 with diagnoses of mild to moderate hypertension were removed from antihypertensive medications and placed on placebo medication in the context of a clinical drug trial. Unmedicated BP levels were measured at the QOL interview, which followed a 4- to 8-week placebo run-in period, and at the preceding visit 1 week earlier. Indices representing five QOL dimensions were obtained in the QOL interview. The QOL dimensions assessed were: 1) sense of general well-being; 2) cognitive functioning; 3) affective status; 4) physical health status; and 5) level and enjoyment of social activity. QOL indices were regressed on unmedicated systolic and diastolic BP levels and on duration of hypertension in separate models. Each regression model included age, education, cigarette smoking, alcohol intake, and body mass index as covariables. We found that unmedicated BP levels were inversely related to QOL measures of cognitive functioning and social activity level. Although duration of hypertension was not related to cognitive functioning or social activity level, duration was associated with indices representing other dimensions of QOL. Specifically, duration of hypertension was inversely related to sense of general well-being and positively related to measures of physical health status, i.e., physical symptom incidence and sleep dysfunction.

Activities of Daily Living↗

En bloc ovariohysterectomy as a treatment for dystocia in dogs and cats.

En bloc ovariohysterectomy, a technique that involves ovariohysterectomy before hysterotomy and removal of the neonates, was performed on 63 animals (37 dogs and 26 cats). Intraoperative complications were limited to 1 cat that bled excessively during surgery and was later found to have a clotting disorder. Postoperative complications included anemia that required blood transfusion in 3 cats, uroperitoneum in 1 dog, and death in 1 cat. The rate of neonatal survival (75% for dogs and 42% for cats) was similar to that documented by previous studies of medical and surgical management of dystocia. We concluded that en bloc ovariohysterectomy is a safe and effective alternative to cesarean section for surgical treatment of dystocia in dogs and cats.

Animals↗