Volume kinetics of lactated Ringer's solution during induction of epidural versus general anesthesia in elderly patients
10.3760/cma.j.issn.0254-1416.2013.11.024
- VernacularTitle:硬膜外阻滞与全身麻醉下老年患者乳酸钠林格氏液容量动力学的比较
- Author:
Jianhong XU
;
Yuhong LI
;
Xiongxin ZHANG
;
Fangping BAO
;
Yan XIANG
;
Shengmei ZHU
- Publication Type:Journal Article
- Keywords:
Anaesthesia,epidural;
Anaesthesia,general;
Aged;
Sodium lactate;
Crystalloid solutions;
Fluid therapy
- From:
Chinese Journal of Anesthesiology
2013;33(11):1376-1379
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the volume kinetics of lactated Ringer' s solution during induction of general and epidural anesthesia in elderly patients.Methods Forty ASA Ⅰ or Ⅱ patients,aged 66-86 yr,weighing 45-86 kg,undergoing elective surgery,were studied.In epidural anesthesia group (n =20),lactated Ringer' s solution was infused intravenously starting from 10 min before epidural anesthesia was performed with local anesthetics.In general anesthesia group (n =20),lactated Ringer' s solution 1000 ml was infused intravenously over 60 min starting from 20 min before induction of anesthesia.Arterial blood samples were obtained every 5 min for measurement of hemoglobin concentrations.The plasma dilution,volume increase,and volume expansion efficacy were calculated.Results The plasma dilution,volume increase and volume expansion were significantly higher at 30-60 min of lactated Ringer' s solution infusion in general anesthesia group than in epidural anesthesia group (P ＜ 0.05 or 0.01).Conclusion The volume expansion of lactated Ringer' s solution is greater in elderly patients during induction of general anesthesia than that during induction of epidural anesthesia.
