Ten years of progress--improved hysterectomy outcomes in Finland 1996-2006: a longitudinal observation study.

Objectives: To study the outcome of various hysterectomies in 2 years 1996 (N =10110) and 2006 (N=5279). The hypothesis was that the change in operative practices in 10 years has resulted in improvements.

Design: 2 prospective nationwide cohort evaluations with the same questionnaire.

Setting: All national operative hospitals in Finland.

Participants: Patients scheduled to either abdominal hysterectomy (AH), vaginal hysterectomy (VH) or laparoscopic hysterectomy (LH) for benign disease.

Outcome Measures: Patients' characteristics, surgery-related details and complications (organ injury, infection, venous thromboembolism and haemorrhage).

Results: The overall complication rates fell in LH and markedly in VH (from 22.2% to 11.7%, p<0.001). The overall surgery-related infectious morbidity decreased in all groups and significantly in VH (from 12.3% to 5.2%, p<0.001) and AH (from 9.9% to 7.7%, p<0.05). The incidence of bowel lesions in VH sank from 0.5% to 0.1% and of ureter lesions in LH from 1.1% to 0.3%. In 2006 there were no deaths compared with three in 1996.

Conclusions: The rate of postoperative complications fell markedly in the decade from 1996 to 2006. This parallels with the recommendation of the recent meta-analyses by Cochrane collaboration; the order of preference of hysterectomies was for the first time precisely followed in this nationwide study.

Trial Registration: The 2006 study was registered in the Clinical Trials of Protocol Registration System Data (NCT00744172).