TY - JOUR
T1 - Relationship between surgeon volume and adverse outcomes after RYGB in Longitudinal Assessment of Bariatric Surgery (LABS) study
AU - Smith, Mark D.
AU - Patterson, Emma
AU - Wahed, Abdus S.
AU - Belle, Steven H.
AU - Bessler, Marc
AU - Courcoulas, Anita P.
AU - Flum, David
AU - Halpin, Valerie
AU - Mitchell, James E.
AU - Pomp, Alfons
AU - Pories, Walter J.
AU - Wolfe, Bruce
N1 - Funding Information:
The present clinical study was a cooperative agreement funded by the National Institute of Diabetes and Digestive and Kidney Diseases (grant U01 DK066557 to Data Coordinating Center; grant U01-DK66667 to Columbia-Presbyterian Hospital; grant U01-DK66568 to University of Washington [in collaboration with General Clinical Research Center, grant M01RR-00037 ]; grant U01-DK66471 to Neuropsychiatric Research Institute; grant U01-DK66526 to East Carolina University; grant U01-DK66585 to University of Pittsburgh Medical Center; and grant U01-DK66555 Oregon Health and Science University).
PY - 2010/3/4
Y1 - 2010/3/4
N2 - Background: Bariatric surgery is technically demanding surgery performed on high-risk patients. Previous studies using administrative databases have shown a relationship between surgeon volume and patient outcome after Roux-en-Y gastric bypass (RYGB). We examined the relationship between surgeons' annual RYGB volumes and 30-day patient outcomes at 10 centers within the United States. Methods: The Longitudinal Assessment of Bariatric Surgery (LABS)-1 is a prospective study examining the 30-day adverse outcomes after bariatric surgery. The outcomes after RYGB were adjusted by procedure type (open versus laparoscopic), functional status, body mass index, history of deep vein thrombosis, pulmonary embolism, and obstructive sleep apnea. The data were examined to determine the nature and strength of the association between surgeon volume and patients' short-term (30-day) adverse outcomes after RYGB. Results: The analysis included 3410 initial RYGB operations performed by 31 surgeons, 15 of whom averaged <50 cases annually. The crude composite adverse outcome (i.e., death, deep vein thrombosis, pulmonary embolism, reintervention or nondischarge at day 30) incidence was 5.2%. After risk adjustment, a greater surgeon RYGB volume was associated with lower composite event rates, with a continuous relationship (i.e., varying cutpoints differentiated the composite event rates), such that for each 10-case/yr increase in volume, the risk of a composite event decreased by 10%. Conclusion: In the LABS, the patient's risk of an adverse outcome after RYGB decreased significantly with the increase in surgeon RYGB volume (cases performed annually).
AB - Background: Bariatric surgery is technically demanding surgery performed on high-risk patients. Previous studies using administrative databases have shown a relationship between surgeon volume and patient outcome after Roux-en-Y gastric bypass (RYGB). We examined the relationship between surgeons' annual RYGB volumes and 30-day patient outcomes at 10 centers within the United States. Methods: The Longitudinal Assessment of Bariatric Surgery (LABS)-1 is a prospective study examining the 30-day adverse outcomes after bariatric surgery. The outcomes after RYGB were adjusted by procedure type (open versus laparoscopic), functional status, body mass index, history of deep vein thrombosis, pulmonary embolism, and obstructive sleep apnea. The data were examined to determine the nature and strength of the association between surgeon volume and patients' short-term (30-day) adverse outcomes after RYGB. Results: The analysis included 3410 initial RYGB operations performed by 31 surgeons, 15 of whom averaged <50 cases annually. The crude composite adverse outcome (i.e., death, deep vein thrombosis, pulmonary embolism, reintervention or nondischarge at day 30) incidence was 5.2%. After risk adjustment, a greater surgeon RYGB volume was associated with lower composite event rates, with a continuous relationship (i.e., varying cutpoints differentiated the composite event rates), such that for each 10-case/yr increase in volume, the risk of a composite event decreased by 10%. Conclusion: In the LABS, the patient's risk of an adverse outcome after RYGB decreased significantly with the increase in surgeon RYGB volume (cases performed annually).
KW - Complications
KW - LABS
KW - Longitudinal Assessment of Bariatric Surgery
KW - RYGB
KW - Roux-en-Y gastric bypass
KW - Volume-outcome
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U2 - 10.1016/j.soard.2009.09.009
DO - 10.1016/j.soard.2009.09.009
M3 - Article
C2 - 19969507
AN - SCOPUS:77950022538
SN - 1550-7289
VL - 6
SP - 118
EP - 125
JO - Surgery for Obesity and Related Diseases
JF - Surgery for Obesity and Related Diseases
IS - 2
ER -