Retrospective Evaluation of Angiotensin-Converting Enzyme Inhibitors and Angiotensin Receptor Blockers on Postoperative Estimated Glomerular Filtration Rates Following Robotic-Assisted Partial Nephrectomy.

Objective

To evaluate the association between the use of angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) preoperatively with changes in estimated glomerular filtration rate (eGFR) after robotic-assisted partial nephrectomy (RAPN).

Methods

Patients undergoing RAPN at our institution from February 2008 through April 2019 were evaluated. ACEIs/ARBs were held on the morning of the surgery and resumed on postoperative day number one in all patients. Associations of ACEIs/ARBs use with postoperative eGFR were explored by using a linear mixed-effects regression model with random patient-specific intercepts. We included eGFR measurements at the following time points: preoperatively, postoperative day 1 (POD1), 1 month postoperative, 6 months postoperative, and 12 months postoperative. p-Values <0.05 were considered statistically significant.

Results

One hundred and seventy-one (44.0%) of 389 patients were on ACEIs/ARBs therapy preoperatively. The ACEIs/ARBs patients were older and had higher rates of comorbidities, including diabetes mellitus. The ACEIs/ARBs patients tended to have lower preoperative eGFR (mean ± standard deviation, 70.4 ± 17.5 vs 78.0 ± 19.2 mL/minute/1.73 m2; p < 0.001). However, this was not significant after adjustment for potentially confounding variables (mean difference, -1.7 mL/minute/1.73 m2; 95% confidence interval, -6.4 to 3.1 mL/minute/1.73 m2; p = 0.48). There was no evidence of an association of ACEIs/ARBs use with postoperative renal function after adjustment for potentially confounding variables (adjusted mean difference in change in eGFR from baseline was -1.1, -1.2, -0.3, and -1.2 mL/minute/1.73 m2 at POD1, 1, 6, and 12 months, respectively; all p ≥ 0.51).

Conclusion

Continuation of ACEIs and ARBs throughout the perioperative period is not associated with change in post-RAPN eGFR.