天津医药 ›› 2024, Vol. 52 ›› Issue (2): 182-187.doi: 10.11958/20230235

• 临床研究 • 上一篇    下一篇

个体化PEEP联合定期肺复张对行腹腔镜结直肠癌根治术老年患者术后肺不张的影响

江洪洋(), 樊世文, 刘铁龙, 谢丽萍()   

  1. 石河子大学第一附属医院麻醉科(邮编832000)
  • 收稿日期:2023-02-27 修回日期:2023-04-03 出版日期:2024-02-15 发布日期:2024-01-26
  • 通讯作者: E-mail:xielipingmazui@163.com
  • 作者简介:江洪洋(1992),男,硕士在读,主要从事临床麻醉应用研究。E-mail:jiangma0621@163.com

Effect of individualized PEEP combined with regular lung recruitment maneuvers on atelectasis after laparoscopic radical resection of colorectal cancer in elderly patients

JIANG Hongyang(), FAN Shiwen, LIU Tielong, XIE Liping()   

  1. Department of Anesthesiology, the First Affiliated Hospital, Shihezi University, Shihezi 832000, China
  • Received:2023-02-27 Revised:2023-04-03 Published:2024-02-15 Online:2024-01-26
  • Contact: E-mail: xielipingmazui@163.com

摘要:

目的 评估肺超声下驱动压(ΔP)引导的个体化呼气末正压通气(PEEP)联合定期肺复张对Trendelenburg体位下行腹腔镜结直肠癌根治术的老年患者术后肺不张的影响。方法 纳入年龄65~85岁、美国麻醉医师协会分级Ⅰ—Ⅲ级,拟行腹腔镜下结直肠癌根治术的患者62例并分为试验组和对照组(各31例)。2组均在气腹开始后进行第1次肺复张,随后立即以最低ΔP滴定个体化PEEP,气腹结束后进行第2次肺复张。试验组自气腹开始每30 min额外进行一次肺复张,对照组则不干预。以麻醉诱导前(T0)、气腹后30 min(T1)、气腹后90 min(T2)、手术结束时(T3)、进入麻醉复苏室(PACU)45 min后(T4)为观察记录时间点。记录T0、T3和T4时肺超声评分(LUS);T1—T3时肺动态顺应性(Cdyn);T0—T4时间点氧合指数(OI)、平均动脉压(MAP)、心率(HR);记录肺复张期间低血压、PACU中低氧饱和事件以及术后7 d内肺部并发症(POPC)发生率。结果 与对照组相比,试验组在T3和T4时LUS下降(P<0.05),T2、T3时OI和Cdyn升高(P<0.05)。试验组在PACU中低氧饱和事件发生率较对照组下降(P<0.05)。2组患者肺复张期间低血压发生率和术后7 d内POPC发生率差异无统计学意义(P>0.05)。结论 个体化PEEP联合定期肺复张可有效减少老年患者腹腔镜结直肠癌根治术后即刻和PACU中的肺不张。

关键词: 肺不张, 腹腔镜, 老年人, 个体化呼气末正压, 驱动压

Abstract:

Objective To evaluate the effect of driving pressure (ΔP)-guided individualized positive end-expiratory pressure (PEEP) combined with regular lung recruitment maneuvers (RMs) on atelectasis in elderly patients undergoing laparoscopic surgery in the Trendelenburg position using lung ultrasound. Methods A total of 62 patients aged 65-85 years old and classified by ASA status Ⅰ-Ⅲ undergoing laparoscopic radical resection of colorectal cancer were included and randomly divided into the experimental group (n=31) and the control group (n=31). Both groups received one RM after the beginning of pneumoperitoneum, followed immediately by titration of individualized PEEP with the lowest ΔP, and both groups received another RM after the end of pneumoperitoneum. The experimental group received additional RM every 30 min from the beginning of pneumoperitoneum, while the control group received no intervention. Recording time points for observation were: before induction of anesthesia (T0), 30 min after pneumoperitoneum (T1), 90 min after pneumoperitoneum (T2), at the end of surgery (T3) and 45 min after entering the postanesthesia care unit (PACU, T4). Lung ultrasound score (LUS) was recorded at T0, T3 and T4. Dynamic lung compliance (Cdyn) was recorded at T1-T3. Oxygenation index (OI), mean arterial pressure (MAP) and heart rate (HR) were recorded at T0-T4. Hypotension during RM, hypoxic saturation events in PACU and the incidence of pulmonary complications (POPC) within the first 7 days after surgery were recorded. Results Compared with the control group, LUSs at T3 and T4 were significantly decreased in the experimental group (P < 0.05), and OI and Cdyn at T2 and T3 were significantly increased (P < 0.05). In addition, the incidence of hypoxia saturation events in PACU was lower in the experimental group than that in the control group (P < 0.05). There were no significant differences in the incidence of hypotension during lung recruitment and the incidence of POPC within 7 days after surgery between the two groups. Conclusion The individualized PEEP combined with regular RMs can effectively reduce the atelectasis observed by lung ultrasound immediately after laparoscopic radical resection of colorectal cancer and in PACU in elderly patients.

Key words: pulmonary atelectasis, laparoscopes, aged, individualized positive end-expiratory pressure, driving pressure

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