The purpose of this study is to investigate the efficacy of dexmedetomidine on oxygenation index, respiratory index and inflammatory factors, and to explore the protective effect of the dexmedetomidine on respiratory function in patients undergoing palatopalatyngoplasty.
Obstructive sleep apnea syndrome is common among people, especially among obese people, Which is characterized by periodic or complete upper airway obstruction and hypoxia during sleep. Intermittent hypoxia contributes to the lung damage by increased oxidative stress, inflammation. Some researchers suggested that dexmedetomidine can inhibit inflammatory reaction and lessen the damage of respiratory function. The aim of this study is to investigate the efficacy of dexmedetomidine on oxygenation index, respiratory index and inflammatory factors, and to explore the protective effect of the dexmedetomidine on respiratory function in patients undergoing palatopalatyngoplasty.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
TRIPLE
Enrollment
80
receive a loading infusion of dexmedetomidine (1ug/kg)for 20min follow by a maintenance infusion (0.4ug/kg/h) continued until the end of the surgery
receive matching placebo (equal volum of normal saline)
General Hospital of Ningxia Medical University
Yinchuan, Ningxia, China
The Oxygenation Index
Arterial blood samples were sampled before anaesthesia induction and immediately after surgery for the oxygenation index by using blood gas analyzer.
Time frame: Intraoperative and immediately after surgery
The Respiratory Index
Arterial blood samples were sampled before anaesthesia induction and immediately after surgery for the respiratory index by using blood gas analyzer.
Time frame: Intraoperative and immediately after surgery
Change of tumor necrosis factor-α before anesthesia and immediately after surgery
Blood samples were sampled before anaesthesia induction and immediately after surgery for the serum tumor necrosis factor-α,which were analyzed by using enzyme linked immunosorbent assay (ELISA).
Time frame: Intraoperative and immediately after surgery
Change of interleukin-6 before anesthesia and immediately after surgery
Blood samples were sampled before anaesthesia induction and immediately after surgery for the serum interleukin-6, which were analyzed by using enzyme linked immunosorbent assay (ELISA).
Time frame: Intraoperative and immediately after surgery
Change of interleukin-10 before anesthesia and immediately after surgery
Blood samples were sampled before anaesthesia induction and immediately after surgery for the serum interleukin-10, which were analyzed by using enzyme linked immunosorbent assay (ELISA).
Time frame: Intraoperative and immediately after surgery
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