Impact of HMG-CoA reductase inhibitor (statin) use on blood loss during robot-assisted and open radical prostatectomy

Matthew D. Truesdale, Allison R. Polland, Joseph A. Graversen, Samantha Sartori, Gregory W. Hruby, Jaime Landman, James M. McKiernan, Mitchell C. Benson, Ketan K. Badani

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Background and Purpose: In addition to their lipid lowering effects, HMG-CoA reductase inhibitors (statins) have been shown to exert antithrombotic effects through downregulation of the coagulation cascade. Because statin use is widespread, it is important to understand the impact of these drugs on blood loss (BL) during surgery. We studied the impact of statin use on BL during robot-assisted radical prostatectomy (RARP) and open radical prostatectomy (ORP). Patients and Methods: A retrospective review was conducted of a database approved by the Institutional Review Board for patients who underwent RARP or ORP at a single academic institution. Patients were categorized as statin-users or statin-naïve at the time of surgery. Patient demographic information was recorded as was perioperative data, including preoperative and postoperative hematocrit (Hct) value. BL was defined as % Hct change presurgery vs postsurgery. In addition, the outcome of ≥10% drop in Hct was studied. The t test and chi-square analysis were used to compare variables across statin use groups. Univariate and multivariable logistic regression analyses were used to identify factors that impacted BL. Results: From 1987 to 2010, 3578 patients underwent prostatectomy for prostate cancer (RARP=945 and ORP=2633). Of these, 676 men were identified as statin-users and 2902 as statin-naïve. Mean patient age was 60.2±7.0 years. Statin-users were found to be older (P<0.001), have lower mean preoperative prostate-specific antigen (PSA) levels (P=0.002), and have higher pathologic Gleason sum scores (P<0.001). For ORP, statin use was associated with increased BL with Hct % change of 20.7% for users vs18.6% for nonusers, (P<0.001). For RARP, no significant change in Hct was seen with statin use with % changes of 12.6% and 12.5%, respectively (P=0.9). When controlling for age, Gleason sum, surgeon, date of surgery and PSA level, statin use was associated with increased BL (P=0.04). Conclusion: Even when controlling for age, Gleason sum, surgeon, date of surgery, and PSA, statin use is associated with increased BL during RP. This information may impact preoperative planning and patient counseling for men who are taking statins while preparing for RP.

Original languageEnglish
Pages (from-to)1427-1433
Number of pages7
JournalJournal of Endourology
Issue number9
StatePublished - 1 Sep 2011


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