Objective: To investigate the efficacy of sacubitril/valsartan in peritoneal dialysis (PD) patients with heart failure with preserved ejection fraction (HFpEF) and its effect on residual renal function. Methods: PD patients with HFpEF in Ningbo First Hospital from March 2018 to August 2021 were retrospectively enrolled and divided into study group with sacubitril/valsartan and control group with valsartan. The clinical baseline data before treatment and clinical indicators during follow-up (6 and 12 months after treatment) were collected and compared between the two groups, and the adverse reactions were also recorded. Results: A total of 99 patients were included in the study. There were 61 patients in the study group, including 44 males and 17 females, with a mean age of (52±13) years. Meanwhile, there were 38 patients in the control group, including 23 males and 15 females, with a mean age of (57±14) years. There was no statistically significant difference in clinical baseline data between the two groups (e.g., age, sex, body mass index, duration of dialysis) (all P>0.05). The N-terminal pro-B-type natriuretic peptide (NT-proBNP) and left ventricular end-systolic dimension (LVDs) were lower, but the left ventricular ejection fraction (LVEF) was higher in the study group than those in the control group at 6 and 12 months after treatment (all P<0.05). The systolic blood pressure (SBP) and diastolic blood pressure (DBP) of the two groups were lower than baseline values at 6 and 12 months after treatment respectively, with statistically significant differences (all P<0.05). However, there were no statistically significant differences in the decreases of SBP and DBP between the two groups at 6 and 12 months after treatment (all P>0.05). The decrease extents in residual estimated glomerular filtration rate (eGFR) [0.52 (-0.05, 1.19) vs 1.72 (0.97, 2.39) ml·min-1·(1.73 m2)-1, P<0.001]and 24-h residual urine volume [200 (-100, 300) vs 300 (137, 400) ml, P=0.018] at 12 months after treatment were lower in the study group than those in the control group. During the follow-up period, hyperkalemia occurred in 16 cases (26.2%) and 13 cases (34.2%) in the study group and the control group, and hypotension occurred in 3 cases (4.9%) and 1 case (2.6%) in the study group and the control group, respectively. There were no adverse reactions such as cough and angioneurotic edema in the two groups. Conclusions: Sacubitril/valsartan can safely and effectively improve cardiac function and lower blood pressure in PD patients with HFpEF. Compared with valsartan, sacubitril/valsartan may be more beneficial to delay the loss of residual renal function in PD patients with HFpEF.
目的： 探讨沙库巴曲/缬沙坦对腹膜透析（PD）合并射血分数保留的心力衰竭（HFpEF）患者的疗效及其对残肾功能的影响。 方法： 回顾性队列研究。纳入2018年3月至2021年8月在宁波市第一医院行PD治疗且合并HFpEF的患者，在常规治疗的基础上，根据是否使用沙库巴曲/缬沙坦分为两组，观察组加用沙库巴曲/缬沙坦，对照组加用缬沙坦，分别收集两组患者治疗前基线资料和治疗后6、12个月期间的临床指标，并记录不良反应。 结果： 共纳入99例患者，观察组61例，男44例，女17例，年龄（52±13）岁；对照组38例，男23例，女15例，年龄（57±14）岁。两组患者年龄、性别、体质指数、透析龄等基线资料差异均无统计学意义（均P>0.05）。治疗后6、12个月时，观察组氨基末端B型脑钠肽前体（NT-proBNP）、左心室收缩末期内径（LVDs）均低于对照组，左心室射血分数（LVEF）高于对照组（均P<0.05）。两组患者在治疗后6、12个月时收缩压与舒张压均低于基线值，差异均有统计学意义（均P<0.05），但两组患者在治疗后6、12个月时收缩压与舒张压下降幅度差异均无统计学意义（均P>0.05）。观察组在治疗12个月时残余估算肾小球滤过率（eGFR）下降幅度［0.52（-0.05，1.19）比1.72（0.97，2.39）ml·min-1·（1.73 m2）-1，P<0.001］及24 h残余尿量下降幅度［200（-100，300）比300（137，400）ml，P=0.018］均小于对照组。随访期间，观察组与对照组分别有16例（26.2%）和13例（34.2%）发生高钾血症，分别有3例（4.9%）和1例（2.6%）出现低血压。两组患者均未出现咳嗽、血管神经性水肿等不良反应。 结论： 沙库巴曲/缬沙坦可安全有效地改善PD合并HFpEF患者的心脏功能和控制血压。与缬沙坦相比，沙库巴曲/缬沙坦可能更有利于延缓PD合并HFpEF患者残肾功能的丢失。.