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Biomedical subjects

M G Luxenberg

Publications and source records attributed to M G Luxenberg.

24 records · Page 2Linked to original sources

Preparation for practice in internal medicine. A study of ten years of residency graduates.

To evaluate the adequacy of preparation for medical practice, we surveyed 320 internal medicine program graduates. The 210 respondents gave their perceptions regarding preparation in training and importance in practice of eight clinical practice skills and 27 clinical procedure skills. The skills with highest preparation scores were venipuncture, intravenous line placement, and arterial puncture for blood gases. The skills rated as the most important in practice were history taking, physical examination, and selection of diagnostic tests. For 13 of the 27 clinical procedure skills, mean preparation scores were significantly higher than mean importance scores, suggesting "overpreparation." In contrast, seven of the eight clinical practice skills had mean preparation scores significantly lower than mean importance scores, suggesting "underpreparation." Furthermore, greater preparation during training was reported by more recent graduates for five of the overprepared skills. We concluded that skills emphasized in internal medicine training are not necessarily those important for practice and that recent changes in the training and practice environments may be increasing these discrepancies.

Clinical Competence↗

Risk factors for the development of renal failure following the surgical treatment of traumatic aortic rupture.

A retrospective study of 44 patients who were treated surgically for traumatic aortic rupture was undertaken to determine risk factors for the development of postoperative renal failure. Renal failure occurred in 11 of 41 patients (27%) eligible for analysis. The Pearson product-moment correlation showed no significant relationship between the occurrence of renal failure and the patient's age, injury severity score, initial blood pressure, or the interval between accident and thoracotomy. Renal failure was significantly correlated with cross-clamping only (r = .2751, p = .043). There was no relationship between renal failure and total cross-clamp times. The mortality rate was significantly higher for patients with renal failure.

Acute Kidney Injury↗

Comparison of court-referred DWI arrestees with other outpatients in substance abuse treatment.

Outpatient treatment based on the "Minnesota Model" as one alternative for alcoholics arrested for driving while intoxicated (DWI) was examined. DWI arrestees (N = 543) who were court referred for chemical abuse treatment were compared with 827 non-DWI and non-court-referred patients in the same outpatient treatment programs. Results indicate that DWI arrestees tended to be younger and unmarried but were more likely to complete treatment. Their drinking was characterized more as an episode use in a social context with less solitary use, continuous use or use as a response to negative feelings. Although the DWI patients in this study were all alcoholics, as a group they appear to represent a generally less advanced stage of alcoholism than the non-DWI sample. Posttreatment follow-up measures at 6 months on subsamples of the patients demonstrated improvement for both DWI and non-DWI patients in virtually all areas assessed. Few outcome differences between DWI and non-DWI groups were found. The results indicate that outpatient substance abuse treatment may be a viable and vital component in any integrated policy on drunken driving.

Accidents, Traffic↗

Risk factors for survival following surgical treatment of traumatic aortic rupture.

Linear discriminate analysis was used to determine the effects of age and Injury Severity Score on survival in 37 consecutive patients treated surgically for traumatic rupture of the thoracic aorta. Pearson product moment correlations were calculated between associated injuries and survival. The age of the injured patients was the only variable that correlated statistically with survival: the lower the patient's age, the greater the chance of survival (r = 0.3535; p = 0.016). The severity of the injury, as represented by the Injury Severity Score, showed a tendency toward decreased survival with increasing Injury Severity Score (r = -0.2523; p = 0.066). Specific types of associated injuries did not correlate with survival. Survival rates were not statistically different for patients who underwent cardiopulmonary bypass compared with those in whom a temporary plastic shunt was used (chi-square = 1.72; p = 0.19). We conclude that age is the most significant factor in predicting survival in patients who undergo surgical repair of traumatic aortic rupture.

Adolescent↗

Call nights and patients care: effects on inpatients at one teaching hospital.

OBJECTIVE: To determine whether the timing and number of patients admitted by internal medicine housestaff under a traditional call schedule affect the resource utilization and outcome of care for those patients. DESIGN: Retrospective cohort study, using existing computerized records. SETTING: University-affiliated 340-bed city/county teaching hospital. PATIENTS/PARTICIPANTS: 22,112 patients discharged from the internal medicine service who had been admitted by an on-call first-year resident between January 1, 1980, and December 31, 1987. MEASUREMENTS AND MAIN RESULTS: Admission after 5:00 PM was associated with decreased hospital length of stay (8.1%, p less than 0.0001), but increased total charges (3.1%, p = 0.007). The relative risk of inpatient mortality for patients admitted at night was 1.21 (p = 0.03). Patients of busier housestaff, as indicated by a larger number of on-call admissions, had lower total charges (1.7% decreased per admission) and no change in risk of inpatient mortality. While no linear relation was found between number of admissions and length of stay, analysis of nonlinear effects revealed that length of stay first rises, then falls as interns receive more on-call admissions. CONCLUSIONS: The number and timing of admissions by on-call internal medicine housestaff are significantly related to length of hospital stay, total charges, and likelihood of inpatient mortality at one teaching hospital. These variations should be considered in planning the reform of residency training programs.

Adult↗

CQI longitudinally applied to integrated service outcomes.

Citing data collected between 1987 and 1994 at the St. Paul-Ramsey Medical Center, Ramsey Clinic and Ramsey Foundation, Paul A. Sommers, Ph.D., executive vice president and chief administrative officer of Ramsey, Michael G. Luxenberg, president of Professional Data Analysts, and Eric. P. Sommers of the River Falls Clinic, write how CQI has been introduced. The key is the application of inferential evaluation.

Continuity of Patient Care↗