Effect of ropivacaine administered intrathecally on pulmonary function after caesarean section
10.3760/cma.j.issn.0254-1416.2012.02.008
- VernacularTitle:蛛网膜下腔注射罗哌卡因对剖宫产术后患者肺功能的影响
- Author:
Wenhui LI
;
Guiqi GENG
;
Xingfeng SUN
;
Shaoqiang HUANG
- Publication Type:Journal Article
- Keywords:
Amides;
Bupivacaine;
Subarachnoid space;
Cesarean section;
Respiratory function tests
- From:
Chinese Journal of Anesthesiology
2012;32(2):164-166
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate the effect of ropivacaine administered intrathecally on the pulmonary function after caesarean section.MethodsThirty-six ASA Ⅰ or Ⅱ parturients,aged 22-34 yr,with body mass index ≤35 kg/m2,undergoing elective cesarean section,were randomly divided into 2 groups (n=18 each):bupivacaine group (group B) and ropivacaine group (group R).Spinal anesthesia was performed at L3,4 interspace and 0.5％ bupivacaine 1.8 ml (in cerebrospinal fluid 3 ml) and 1.0％ ropivacaine 1.4 ml (in cerebrospinal fluid 3 ml) were injected into the subarachnoid space over 10 s in groups B and R respectively.Forced vital capacity (FVC),forced expiratory volume first second (FEV1) and peak expiratory flow (PEF) were measured by spirometry before surgery (T0),and at 1,1.5 and 2 h after intrathecal injection (T1-3).The motor block score was recorded at T1-3.It is regarded as the criteria for respiratory dysfunction that the measured values of FVC and FEV1 are lower than their 80 ％ and 70 ％ predicted levels respectively.ResultsFVC and FEV1 were significantly decreased at T1 compared with the baseline value at T0 in both groups (P＜0.05).Compared with that at T1,PEF was significantly increased at T2,3 in group R (P ＜0.05).Compared with group B,PEF at T1 and motor block score atT3 were significantly decreased in group R (P＜0.05).The respiratory dysfunction was not found in both groups.ConclusionSpinal anesthesia with ropivacaine and bupivacaine can inhibit the parameter level of carly pulmonary function afrer caesarean section in parturient without respiratory complications,but the pulmonary function still remains normal.
