Efficacy of high-flow nasal cannula oxygen therapy in optimizing painless transesophageal echocardiography in elderly patients
10.3760/cma.j.cn131073.20230120.01219
- VernacularTitle:经鼻高流量湿化氧疗用于老年患者经食管超声无痛检查术的优化效果
- Author:
Qing FEI
1
;
Liting CUI
;
Yimin HU
;
Yue XIAO
;
Yanan CAO
;
Chunmei WANG
Author Information
1. 南京医科大学附属常州第二人民医院麻醉科，常州 213000
- Keywords:
Oxygen inhalation therapy;
Continuous positive airway pressure;
Airway management;
Echocardiography, transesophageal
- From:
Chinese Journal of Anesthesiology
2023;43(12):1503-1506
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the efficacy of high-flow nasal cannula (HFNC) oxygen therapy in optimizing painless transesophageal echocardiography in elderly patients.Methods:Sixty American Society of Anesthesiologists Physical Status classification Ⅱ patients, regardless of gender, aged 60-75 yr, with body mass index of 18.5-23.9 kg/m 2, were randomized into 2 groups ( n=30 each) by a random number table method: group HFNC and conventional ventilation group (group C). Pure oxygen 10 L/min was inhaled for 3 min preoxygenation using the HFNC device in group HFNC. Group C inhaled pure oxygen at 6 L/min for 3 min preoxygenation via a nasal cannula. Sufentanil 0.1 μg/kg and remazolam 0.25-0.30 mg/kg were intravenously injected in turn. Group HFNC was connected to a high-flow humidification oxygen therapy device and inhaled pure oxygen at 60 L/min (37℃, FiO 2 100%). The flow rate of pure oxygen was maintained at 6 L/min (FiO 2 100 %) in group C. The patients were placed in left lateral decubitus position, esophageal ultrasound was performed after the eyelash reflex disappeared, and remazolam 0.1 mg/kg was intravenously injected intermittently when bucking and body movement were induced by operation stimulation. The occurrence of hypoxia-related adverse events, mandibular intervention and ventilation-related adverse events was observed during examination. The operation time, time of emergence from anesthesia and consumption of remazolam were recorded. Results:Compared with group C, the incidence of severe hypoxia and rate of mandibular intervention were significantly decreased (7%/0 and 53%/17%, P<0.05), the lowest intraoperative SpO 2 was increased ( P<0.05), and no significant change was found in the operation time, time of emergence from anesthesia and consumption of remazolam in group HFNC ( P>0.05). No ventilation-related adverse events occurred in both groups. Conclusions:HFNC can markedly optimize the ventilation management of elderly patients undergoing painless transesophageal echocardiography.
