• Zheng Chen, Dong-Hua Shao, Xiao-Dong Ma, and Zu-Min Mao.
• From the Department of Anesthesiology, Zhenjiang First People's Hospital, Zhenjiang, Jiangsu, China.
• Ann Saudi Med. 2020 May 1; 40 (3): 183190183-190.

BackgroundMesenteric traction syndrome (MTS), which is characterized by arterial hypotension and tachycardia following mesenteric traction (MT), frequently occurs during abdominal surgery. Dexmedetomidine, commonly used in general anesthesia during major surgery, has a sympatholytic effect and attenuates the compensatory response to hypotension.ObjectiveAssess the effect of dexmedetomidine on hypotension following mesenteric traction.DesignProspective, randomized, controlled clinical trial.SettingDepartment of Anesthesiology, Zhenjiang First People's Hospital in China.Patients And MethodsPatients were randomly divided into three groups. Dexmedetomidine, 0.5 or 1.0 µg/kg, was intravenously administered over 15 minutes before skin incision followed by a maintenance rate of 0.5 µg/kg/h in groups D1 and D2, respectively; saline was administered in group C.Main Outcome Measure(S)The duration of hypotension, heart rate and plasma norepinephrine level in patients with MTS were recorded within 60 minutes following MT.Sample Size75 patients.ResultsThe duration of hypotension in the MTS patients in group D1 and D2 was significantly longer than that in groups C (D1 vs. C, P<.05; D2 vs. C, P<.01). Significantly more phenylephrine was required to treat hypotension in group D1 and D2 than was required for patients in group C (P<.05). The increase in heart rate during the first 15 minutes of MT in group D2 was significantly attenuated compared to that in group C (P<.0083). The increases in norepinephrine levels during the first 15 minutes of MT in group C were significantly higher than those in groups D1 and D2 (P<.0167).ConclusionAdjunctive dexmedetomidine in general anesthesia aggravates hypotension during MTS in open total gastrectomy.LimitationsPostoperative complications were not evaluated.Conflict Of InterestNone.

30 keywords...

hide…