Ventilatory effects of laparoscopic cholecystectomy
Ventilatory effects of laparoscopic cholecystectomy
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DOI：
10.1111/j.1399-6576.1996.tb04489.x
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发表时间：
1996-05-01
影响因子：
2.1
通讯作者：
Lacoste, L
中科院分区：
文献类型：
--
作者：
Bures, E;Fusciardi, J;Lacoste, L
背景：在腹腔镜胆囊切除术中，动脉-呼气末二氧化碳分压(Fa-ETCO(2))不同程度地表现为不同程度的改变、增加、降低甚至负值。本研究的目的是评估Fa-ETCO(2)，并确定VECO(2)和VA在FETCO(2)升高中的适当贡献。方法：15例ASA 1-2患者，平均年龄+/-SD：48.5+/-15.0，在全麻和控制性机械通气期间，腹膜腔内CO2气腹仅限于12 mm Hg，15度仰卧位。在气腹前、气腹中和气腹后分别测定以下指标：FACO(2)、FETCO(2)、鼻咽温度、死腔通气量和呼气量。结果：气腹时FAETCO(2)下降，甚至变为负值(n=8)(P
Background: During laparoscopic cholecystectomy the arterial-end-tidal CO2 gradient (Fa-ETCO(2)) has been variously shown to be unchanged, increased, decreased or even negative. The goal of this study was to evaluate Fa-ETCO(2), and to determine the proper contribution of VECO(2) and VA in regard to the increase of FETCO(2).Methods: Ventilatory patterns were studied in 15 ASA 1-2 patients (mean age+/-SD: 48.5+/-15.0) undergoing laparoscopic cholecystectomy, with intraperitoneal CO2 insufflation limited to 12 mmHg, 15 degrees head-up position, during general anaesthesia and controlled ventilation. The following were studied before, during, and after the pneumoperitoneum: FaCO(2), FETCO(2), nasopharyngeal temperature; dead space ventilation and expired volumes using the Single Breath Test for CO2. VA was calculated as the alveolar fraction of expired VT multiplied by the respiratory frequency.Results: During pneumoperitoneum it is shown that: 1) FaETCO(2) either decreases and becomes even negative (n=8) (P