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  • Title: The prevention of venous thromboembolism: a statewide evaluation of practices in Massachusetts.
    Author: Audet AM, Anderson FA, St John R.
    Journal: Therapie; 1998; 53(6):591-4. PubMed ID: 10070239.
    Abstract:
    The objective of this study was to determine the proportion of Massachusetts Medicare patients who received prophylaxis for venous thromboembolism following colectomy, hysterectomy or total hip arthroplasty. The sample frame was all 90 Massachusetts acute care hospitals, and the time frame was 1 April to 30 September 1994. The patients discharged with an International Classification of Disease (ICD-9-CM) discharge diagnostic code (recorded in the Massachusetts Medicare Claims Database) for colectomy, hysterectomy or total hip arthroplasty were used to identify the target patient population. The sample population comprised 1397 patients randomly selected from the target population, including 467 total hip arthroplasties, 474 colectomies, and 456 hysterectomies. Medical records were reviewed by trained nurse abstractors who collected information on the use of prophylaxis for venous thromboembolism. Prophylaxis for venous thromboembolism was employed by surgeons practicing in Massachusetts hospitals in 93 per cent of total hip arthroplasty cases (regional variation 85-98 per cent), 84 per cent of colectomies (regional variation 57-93 per cent), 66 per cent of hysterectomies (regional variation 35-71 per cent), and in 87 per cent of the subset of 111 hysterectomies with malignancy (regional variation 25-100 per cent). The results of this statewide study demonstrated significant regional and hospital-to-hospital variation in use of prophylaxis for venous thromboembolism following major surgery. A lower rate of prophylaxis use was observed in hospitals with fewer than 200 beds and in hospitals that did not have teaching programmes. Hospitals with below-average rates of prophylaxis were targeted for intensive quality improvement interventions.
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