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Biomedical subjects

L A Graff

Publications and source records attributed to L A Graff.

4 recordsLinked to original sources

Therapeutic value of a gastroenterology consultation in irritable bowel syndrome.

BACKGROUND: Functional patients comprise the largest group in gastroenterology practice. Pharmacological therapy of irritable bowel syndrome is disappointing. One treatment strategy for irritable bowel syndrome emphasizes the physician's role; the physician is promoted as the therapeutic modality. AIM: To determine the therapeutic value of the contemporary approach to irritable bowel syndrome by examining health care utilization and patient morbidity. METHODS: We performed an observational study over 4 years using an administrative database and morbidity scales. Health care utilization was assessed for 2 years pre- and post-intervention. Patient morbidity was assessed at baseline and 1 and 2 years post-intervention. The participants included 70 irritable bowel syndrome patients referred by primary physicians. A structured consultation was performed, establishing a positive diagnosis of irritable bowel syndrome and providing disease conceptualization. RESULTS: Health care utilization for gastrointestinal diagnoses increased in the year prior to the intervention and declined immediately after to baseline; psychiatric and other visits remained unchanged for 4 years. Pain was reduced but other morbidity persisted. CONCLUSIONS: A consultation itself is a therapeutic intervention in irritable bowel syndrome with regard to its impact on societal economic burden. It is associated with a durable decrease in illness-specific health care utilization. It may not address all aspects of irritable bowel syndrome; multiple domains of morbidity demonstrated persistent distress.

Adolescent↗

Discharging patients earlier from Winnipeg hospitals: does it adversely affect quality of care?

OBJECTIVE: To determine whether decreasing lengths of stay over time for selected diagnostic categories were associated with increased hospital readmission rates and mean number of physician visits after discharge. DESIGN: Retrospective descriptive study. SETTING: The seven large (125 beds or more) acute care hospitals in Winnipeg. PATIENTS: Manitoba residents admitted to any one of the seven hospitals because acute myocardial infarction (AMI), bronchitis or asthma, transurethral prostatectomy (TURP) and uterine or adnexal procedures for nonmalignant disease during the fiscal years 1989-90 to 1992-93. Patients from out of province, those who died in hospital, those with excessively long stays (more than 60 days) and those who were transferred to or from another institution were excluded. OUTCOME MEASURES: Length of hospital stay, and rate of readmission within 30 days after discharge for all four categories and mean number of physician visits within 30 days after discharge for two categories (AMI and bronchitis or asthma. RESULTS: The length of stay decreased significantly over the 4 years for all of the four categories, the smallest change being observed for patients with AMI (11.1%) and the largest for those with bronchitis or asthma (22.0%). The readmission rates for AMI, bronchitis or asthma, and TURP showed no consistent change over the 4 years. The readmission rate for uterine or adnexal procedures increased significantly between the first and second year (chi 2 = 4.28, p = 0.04) but then remained constant over the next 3 years. The mean number of physician visits increased slightly for AMI in the first year (1.92 to 2.01) and then remained virtually the same. It decreased slightly for bronchitis or asthma over the 4 years. There was no significant correlation between length of stay and readmission rates for individual hospitals in 1992-93 in any of the four categories. Also, no correlation was observed between length of stay and mean number of physician visits for individual hospitals in 1992-93 in the categories AMI and bronchitis or asthma. CONCLUSIONS: Improving hospital efficiency by shortening length of stay does not appear to result in increased rates of readmission or numbers of physician visits within 30 days after discharge from hospital. Research is needed to identify optimal lengths of stay and expected readmission rates.

Diagnosis-Related Groups↗

Predicting postpartum depressive symptoms: a structural modelling analysis.

In this prospective, longitudinal study, 42 first-time mothers, recruited through prenatal classes, were assessed on variables predictive of postpartum depressive symptoms. Using a causal modelling structural analysis, it was found that prenatal depression, partners' support, and infant-related factors all contributed to the development of depression following childbirth.

Adult↗

Rate and variability of finger tapping as measures of lateralized concurrent task effects.

Using a sample of 48 normal right-handed adults, we assessed the effects of oral reading on concurrent unimanual finger tapping under all combinations of instructional set (speeded vs. consistent tapping), tapping movement (repetitive vs. alternating), task emphasis (reading emphasized vs. tapping emphasized), and tapping hand. Change in tapping rate and variability was measured relative to the corresponding single task control condition. Reading decreased the rate of speeded finger tapping but increased the rate of consistent tapping. In both instances, the right hand was affected more than the left hand. Asymmetries were comparable for repetitive and alternating tapping. When measured in terms of variability, however, effects were largely symmetric. The findings clarify the conditions under which lateralized concurrent task effects are most likely to occur and show that such effects are not statistical artifacts. It appears that subjects attempt to coordinate the timing of concurrent activities and that speech timing is more strongly linked to right-hand control than to left-hand control in right-handers.

Adolescent↗