Complications after surgery for benign prostatic enlargement: a population-based cohort study in Ontario, Canada

Objectives To examine the complication rates after benign prostatic enlargement (BPE) surgery and the effects of age, comorbidity and preoperative medical therapy.Design A retrospective, population-based cohort study using linked administrative data.Setting Ontario, Canada.Participants 52 162 men≥66...

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Main Authors: Rano Matta, Erind Dvorani, Christopher Wallis, Amanda Hird, Joseph LaBossiere, Girish Kulkarni, Ronald Kodama, Lesley Carr, Sidney B Radomski, Refik Saskin, Sender Herschorn, Robert K Nam
Format: Article
Language:English
Published: BMJ Publishing Group 2019-12-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/9/12/e032170.full
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author Rano Matta
Erind Dvorani
Christopher Wallis
Amanda Hird
Joseph LaBossiere
Girish Kulkarni
Ronald Kodama
Lesley Carr
Sidney B Radomski
Refik Saskin
Sender Herschorn
Robert K Nam
author_facet Rano Matta
Erind Dvorani
Christopher Wallis
Amanda Hird
Joseph LaBossiere
Girish Kulkarni
Ronald Kodama
Lesley Carr
Sidney B Radomski
Refik Saskin
Sender Herschorn
Robert K Nam
author_sort Rano Matta
collection DOAJ
description Objectives To examine the complication rates after benign prostatic enlargement (BPE) surgery and the effects of age, comorbidity and preoperative medical therapy.Design A retrospective, population-based cohort study using linked administrative data.Setting Ontario, Canada.Participants 52 162 men≥66 years undergoing first BPE surgery between 1 January 2003 to 31 December 2014.Intervention Medical therapy preoperatively and surgery for BPE.Primary and secondary outcome measures The primary outcome was overall 30-day postoperative complication rates. Secondary outcomes included BPE-specific event rates (bleeding, infection, obstruction, trauma) and non-BPE specific event rates (cardiovascular, pulmonary, thromboembolic and renal). Multivariable analysis examined the association between preoperative medical therapy and postoperative complication rates.Results The 30-day overall complication rate after BPE surgery was 2828 events/10 000 procedures and increased annually over the study period. Receipt of preoperative α-blocker monotherapy (relative rate (RR) 1.05; 95% CI 1.00 to 1.09; p=0.033) and antithrombotic medications (RR 1.27; 95% CI 1.22 to 1.31; p<0.0001) was associated with increased complication rates. Among the ≥80-year-old group, the rate of complications increased by 39% from 2003 to 2014 (RR 1.39; 95% CI 1.21 to 1.61; p<0.0001). The mean duration of medical and conservative management increased by a mean of 2.1 years between 2007 and 2014 (p<0.0001 for trend).Conclusions Thirty-day complication rates after BPE surgery have increased annually between 2003 and 2014. Preoperative medical therapy with alpha blockers or antithrombotics was independently associated with higher rates of complications. Over this time, the duration of conservative therapy also increased.
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spelling doaj-art-c27ba983ca1c4062b1e180086969e6f12024-12-02T12:10:13ZengBMJ Publishing GroupBMJ Open2044-60552019-12-0191210.1136/bmjopen-2019-032170Complications after surgery for benign prostatic enlargement: a population-based cohort study in Ontario, CanadaRano Matta0Erind Dvorani1Christopher Wallis2Amanda Hird3Joseph LaBossiere4Girish Kulkarni5Ronald Kodama6Lesley Carr7Sidney B Radomski8Refik Saskin9Sender Herschorn10Robert K Nam11Surgery, Division of Urology, University of Toronto, Toronto, Ontario, CanadaInstitute for Clinical Evaluative Sciences, Toronto, Ontario, CanadaDivision of Urology, Mount Sinai Hospital, Toronto, Ontario, CanadaSurgery, Division of Urology, University of Toronto, Toronto, Ontario, CanadaDivision of Urology, University of Alberta, Edmonton, Alberta, CanadaSurgery, Division of Urology, University of Toronto, Toronto, Ontario, Canada1 Division of Urology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada1 Division of Urology, Sunnybrook Health Sciences Centre, Toronto, Ontario, CanadaSurgery, Division of Urology, University of Toronto, Toronto, Ontario, Canada3 Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada1 Division of Urology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada1 Division of Urology, Sunnybrook Health Sciences Centre, Toronto, Ontario, CanadaObjectives To examine the complication rates after benign prostatic enlargement (BPE) surgery and the effects of age, comorbidity and preoperative medical therapy.Design A retrospective, population-based cohort study using linked administrative data.Setting Ontario, Canada.Participants 52 162 men≥66 years undergoing first BPE surgery between 1 January 2003 to 31 December 2014.Intervention Medical therapy preoperatively and surgery for BPE.Primary and secondary outcome measures The primary outcome was overall 30-day postoperative complication rates. Secondary outcomes included BPE-specific event rates (bleeding, infection, obstruction, trauma) and non-BPE specific event rates (cardiovascular, pulmonary, thromboembolic and renal). Multivariable analysis examined the association between preoperative medical therapy and postoperative complication rates.Results The 30-day overall complication rate after BPE surgery was 2828 events/10 000 procedures and increased annually over the study period. Receipt of preoperative α-blocker monotherapy (relative rate (RR) 1.05; 95% CI 1.00 to 1.09; p=0.033) and antithrombotic medications (RR 1.27; 95% CI 1.22 to 1.31; p<0.0001) was associated with increased complication rates. Among the ≥80-year-old group, the rate of complications increased by 39% from 2003 to 2014 (RR 1.39; 95% CI 1.21 to 1.61; p<0.0001). The mean duration of medical and conservative management increased by a mean of 2.1 years between 2007 and 2014 (p<0.0001 for trend).Conclusions Thirty-day complication rates after BPE surgery have increased annually between 2003 and 2014. Preoperative medical therapy with alpha blockers or antithrombotics was independently associated with higher rates of complications. Over this time, the duration of conservative therapy also increased.https://bmjopen.bmj.com/content/9/12/e032170.full
spellingShingle Rano Matta
Erind Dvorani
Christopher Wallis
Amanda Hird
Joseph LaBossiere
Girish Kulkarni
Ronald Kodama
Lesley Carr
Sidney B Radomski
Refik Saskin
Sender Herschorn
Robert K Nam
Complications after surgery for benign prostatic enlargement: a population-based cohort study in Ontario, Canada
BMJ Open
title Complications after surgery for benign prostatic enlargement: a population-based cohort study in Ontario, Canada
title_full Complications after surgery for benign prostatic enlargement: a population-based cohort study in Ontario, Canada
title_fullStr Complications after surgery for benign prostatic enlargement: a population-based cohort study in Ontario, Canada
title_full_unstemmed Complications after surgery for benign prostatic enlargement: a population-based cohort study in Ontario, Canada
title_short Complications after surgery for benign prostatic enlargement: a population-based cohort study in Ontario, Canada
title_sort complications after surgery for benign prostatic enlargement a population based cohort study in ontario canada
url https://bmjopen.bmj.com/content/9/12/e032170.full
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