...
首页> 外文期刊>American Journal of Veterinary Research >Physiologic responses and plasma endothelin-1 concentrations associated with abrupt cessation of nitric oxide inhalation in isoflurane-anesthetized horses.
【24h】

Physiologic responses and plasma endothelin-1 concentrations associated with abrupt cessation of nitric oxide inhalation in isoflurane-anesthetized horses.

机译:与异氟烷麻醉的马突然停止吸入一氧化氮有关的生理反应和血浆内皮素-1浓度。

获取原文
获取原文并翻译 | 示例
           

摘要

OBJECTIVE: To assess physiologic responses and plasma endothelin (ET)-1 concentrations associated with abrupt cessation of nitric oxide (NO) inhalation in isoflurane-anesthetized horses. ANIMALS: 6 healthy adult Standardbreds. PROCEDURES: Horses were anesthetized with isoflurane in oxygen and placed in dorsal recumbency. Nitric oxide was pulsed into the respiratory tract for 2.5 hours, and then administration was abruptly discontinued. Just prior to commencement and at cessation of NO administration, and at intervals during a 30-minute period following cessation of NO inhalation, several variables including PaO(2), mean pulmonary artery pressure, venous admixture or pulmonary shunt fraction (Qs/Qt), and plasma ET-1 concentration were recorded or calculated. RESULTS: After cessation of NO inhalation, PaO(2) decreased slowly but significantly (172.7 +/- 29.8 mm Hg to 84.6 +/- 10.9 mm Hg) and Qs/Qt increased slowly but significantly (25 +/- 2% to 40 +/- 3%) over a 30-minute period. Mean pulmonary artery pressure increased slightly (14.0 +/- 1.3 mm Hg to 16.8 +/- 1 mm Hg) over the same time period. No change in serum ET-1 concentration was detected, and other variables did not change or underwent minor changes. CONCLUSIONS AND CLINICAL RELEVANCE: The improvement in arterial oxygenation during pulsed inhalation of NO to healthy isoflurane-anesthetized horses decreased only gradually during a 30-minute period following cessation of NO inhalation, and serum ET-1 concentration was not affected. Because a rapid rebound response did not develop, inhalation of NO might be clinically useful in the treatment of hypoxemia in healthy isoflurane-anesthetized horses.
机译:目的:评估在异氟烷麻醉的马中突然停止吸入一氧化氮(NO)相关的生理反应和血浆内皮素(ET)-1浓度。动物:6种健康的成年标准犬。程序:马在氧气中用异氟烷麻醉,并置于背卧位。将一氧化氮脉冲进入呼吸道2.5小时,然后突然停止给药。在开始和停止NO给药之前以及停止NO吸入后30分钟内的间隔中,包括PaO(2),平均肺动脉压,静脉混合或肺分流分数(Qs / Qt)在内的多个变量,并记录或计算血浆ET-1浓度。结果:停止NO吸入后,PaO(2)缓慢降低,但显着降低(172.7 +/- 29.8 mm Hg至84.6 +/- 10.9 mm Hg),Qs / Qt缓慢但显着升高(25 +/- 2%至40 30分钟内的+/- 3%)。在同一时间段内,平均肺动脉压略有增加(从14.0 +/- 1.3毫米汞柱增至16.8 +/- 1毫米汞柱)。没有检测到血清ET-1浓度变化,其他变量也没有变化或发生了微小变化。结论和临床意义:在停止吸入NO后30分钟内,向健康的异氟烷麻醉的NO脉冲吸入NO的过程中,动脉氧合的改善仅逐渐降低,并且血清ET-1浓度不受影响。由于未出现快速的反弹反应,因此在健康的异氟烷麻醉的马中,吸入NO可能在临床上用于治疗低氧血症。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号