OBJECTIVE: To examine changes over time in surgeon and hospital procedural volume for hysterectomy for endometrial cancer and explore the association between changes in volume and perioperative outcomes. METHODS: We used the Statewide Planning and Research Cooperative System database to analyze women who underwent abdominal or minimally invasive hysterectomy from 2000 to 2014. Annualized surgeon and hospital volume was estimated. The association between surgeon and hospital volume and perioperative morbidity, mortality, and resource utilization (transfusion, length of stay, hospital charges) was estimated by modeling procedural volume as a continuous and categorical variable. RESULTS: A total of 44,558 women treated at 218 hospitals were identified. The number of surgeons performing cases each year decreased from 845 surgeons with 2,595 patients (mean cases=3) in 2000 to 317 surgeons who operated on 3,119 patients (mean cases=10) (P<.001) in 2014, whereas the mean hospital volume rose from 14 to 32 cases over the same time period (P=.29). When stratified by surgeon volume quartiles, the morbidity rate was 14.6% among the lowest volume surgeons, 20.8% for medium-low, 15.7% for medium-high, and 14.1% for high-volume surgeons (P<.001). In multivariable models in which volume was modeled as a continuous variable, there was no association between surgeon volume and the rate of complications, whereas excessive total charges were lowest and perioperative mortality highest for the high-volume surgeons (P<.001 for both). CONCLUSION: Care of women with endometrial cancer has been concentrated to a smaller number of surgeons and hospitals. The association between surgeon and hospital volume for endometrial cancer is complex with an increased risk of adverse outcomes among medium-volume hospitals and surgeons but the lowest complication rates for the highest volume surgeons and centers.
OBJECTIVE: To examine changes over time in surgeon and hospital procedural volume for hysterectomy for endometrial cancer and explore the association between changes in volume and perioperative outcomes. METHODS: We used the Statewide Planning and Research Cooperative System database to analyze women who underwent abdominal or minimally invasive hysterectomy from 2000 to 2014. Annualized surgeon and hospital volume was estimated. The association between surgeon and hospital volume and perioperative morbidity, mortality, and resource utilization (transfusion, length of stay, hospital charges) was estimated by modeling procedural volume as a continuous and categorical variable. RESULTS: A total of 44,558 women treated at 218 hospitals were identified. The number of surgeons performing cases each year decreased from 845 surgeons with 2,595 patients (mean cases=3) in 2000 to 317 surgeons who operated on 3,119 patients (mean cases=10) (P<.001) in 2014, whereas the mean hospital volume rose from 14 to 32 cases over the same time period (P=.29). When stratified by surgeon volume quartiles, the morbidity rate was 14.6% among the lowest volume surgeons, 20.8% for medium-low, 15.7% for medium-high, and 14.1% for high-volume surgeons (P<.001). In multivariable models in which volume was modeled as a continuous variable, there was no association between surgeon volume and the rate of complications, whereas excessive total charges were lowest and perioperative mortality highest for the high-volume surgeons (P<.001 for both). CONCLUSION: Care of women with endometrial cancer has been concentrated to a smaller number of surgeons and hospitals. The association between surgeon and hospital volume for endometrial cancer is complex with an increased risk of adverse outcomes among medium-volume hospitals and surgeons but the lowest complication rates for the highest volume surgeons and centers.
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