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Biomedical subjects

F W Wittmann

Publications and source records attributed to F W Wittmann.

10 recordsLinked to original sources
PubMed1991

Venous thromboembolic disease in uncemented total hip replacement surgery--a one-year follow-up of 490 patients.

A retrospective study of the morbidity and mortality from deep vein thrombosis (DVT) and pulmonary embolus (PE) in 490 consecutive patients undergoing uncemented total hip replacement was carried out in a district general hospital. Special diagnostic tests for DVT and PE were not available. Patients were followed up for one year. There were three deaths in hospital and eight further deaths during the first year, all unrelated to DVT and PE. The clinical incidence of venous thromboembolism was 2.04%. While clinical diagnosis of venous thromboembolic disease probably underestimates its incidence, the figures for mortality are accurate. With every patient accounted for one year after operation, there were no deaths attributable to PE in this series.

Adult↗
PubMed1989

Reduction in blood loss in total hip arthroplasty using topical Colgen.

Blood loss associated with uncemented total hip arthroplasty can be considerable, and any simple and safe means of reducing this loss and hence the volume of blood transfused during surgery would be valuable. The authors conducted a randomized trial using Colgen, a nondenatured collagen with hemostatic properties, in 76 patients undergoing uncemented total hip arthroplasty. Thirty-eight patients had Colgen sprinkled around the reduced hip joint after arthroplasty and 38 patients acted as controls. Analysis, using Student's t-test, showed no difference between the groups in measured blood loss at operation. However, after surgery in the Colgen group both visible measured blood loss (P less than .05) and total calculated blood loss (P less than .01) were significantly reduced. These results are particularly relevant today, when blood transfusion itself is a potential danger and should be kept to the necessary minimum.

Administration, Topical↗
PubMed1987

Blood loss associated with uncemented total hip replacement: hypotension does not affect blood loss.

Twenty-seven patients who were moderately hypotensive during uncemented total hip replacement were compared with a group of normotensive patients. There was no statistical difference (P less than 0.05) in blood loss measured at time of operation, following operation or in the calculated loss. Hypotension, which is known to be dangerous in the elderly, conferred no benefit and should be avoided.

Aged↗