The factors affecting pulse transit time during anesthesia
- VernacularTitle:麻醉手术期间影响脉搏波传导时间的相关因素
- Author:
Yuzhi JIANG
;
Jie SUN
;
Xiaofei CAO
;
Guohua WEI
;
Zhengnian DING
- Publication Type:Journal Article
- Keywords:
Pulse transit time;
Vasoactive drugs;
Systolic blood pressure
- From:
The Journal of Clinical Anesthesiology
2014;(7):682-685
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the factors affecting pulse transit time during anesthesia. Methods Sixty cases of gastrointestinal surgery under general anesthesia were investigated.The pulse transit time (PTT),BP and HR were measured at the time before and after intravenous anes-thesia induction,and at the time before and after the injection of vasoactive drugs,respectively. Results Compared to at the time before injection,HR,SBP and DBP increased significantly,and PTT decreased significantly (P <0.01 )at the time after injection of atropine and ephedrine.Com-pared to at the time before injection,HR and PTT increased significantly,while SBP and DBP de-creased significantly (P < 0.01 )at the time after injection of nicardipine.While HR and PTT de-creased significantly,and SBP,DBP increased significantly (P <0.01 )with the injection of pheny-lephrine.Obvious negative correlation between SBP and PTT was observed before and after induc-tion;meanwhile,only weak correlation between DBP and PTT was observed,and no obvious correla-tion between HR and PTT was detected.SBP and PTT were well negatively correlated with the injec-tion of atropine,ephedrine,nicardipine or phenylephrine.Conclusion All the PTT changes during anesthesia were found to be negatively correlated with the systolic blood pressure.
