|
1
|
Tan C, Yan S, Shen J, Wu H, Yu L, Wang Y, Tian S, Zhou W, Wu Y, Zhang Z. Effects of dexmedetomidine on cardiac electrophysiology in patients undergoing general anesthesia during perioperative period: a randomized controlled trial. BMC Anesthesiol 2022; 22:271. [PMID: 36008759 PMCID: PMC9404616 DOI: 10.1186/s12871-022-01811-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 07/18/2022] [Indexed: 11/29/2022] Open
Abstract
Background Dexmedetomidine has controversial influence on cardiac electrophysiology. The aim of this study was to explore the effects of dexmedetomidine on perioperative cardiac electrophysiology in patients undergoing general anesthesia. Methods Eighty-one patients were randomly divided into four groups: groups D1, D2, D3 receiving dexmedetomidine 1, 1, 0.5 μg/kg over 10 min and 1, 0.5, 0.5 μg/kg/h continuous infusion respectively, and control group (group C) receiving normal saline. Twelve-lead electrocardiograms were recorded at the time before dexmedetomidine/normal saline infusion (T1), loading dose finish (T2), surgery ending (T6), 1 h (T7) after entering PACU, 24 h (T8), 48 h (T9), 72 h (T10) and 1 month (T11) postoperatively. Cardiac circulation efficiency (CCE) were also recorded. Results Compared with group C, QTc were significantly increased at T2 in groups D1 and D2 while decreased at T7 and T8 in group D3 (P < 0.05), iCEB were decreased at T8 (P < 0.05). Compared with group D1, QTc at T2, T6, T7, T9 and T10 and iCEB at T8 were decreased, and CCE at T2-T4 were increased in group D3 significantly (P < 0.05). Compared with group D2, QTc at T2 and iCEB at T8 were decreased and CCE at T2 and T3 were increased in group D3 significantly (P < 0.05). Conclusions Dexmedetomidine at a loading dose of 0.5 μg/kg and a maintenance dose of 0.5 μg/kg/h can maintain stability of cardiac electrophysiology during perioperative period and has no significant adverse effects on CCE. Trial registration ClinicalTrials.gov NCT04577430 (Date of registration: 06/10/2020).
Collapse
Affiliation(s)
- Chao Tan
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Shiting Yan
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China.,Graduate School, Dalian Medical University, Dalian, 116000, China
| | - Jie Shen
- Department of Cardiac Function, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Hao Wu
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Leyang Yu
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China.,Graduate School, Dalian Medical University, Dalian, 116000, China
| | - Ying Wang
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China.,Graduate School, Dalian Medical University, Dalian, 116000, China
| | - Shunping Tian
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Wei Zhou
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Yong Wu
- Department of Cardiac Function, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China
| | - Zhuan Zhang
- Department of Anesthesiology, the Affiliated Hospital of Yangzhou University, Yangzhou, 225012, China.
| |
Collapse
|