Roth J V, Huertas R, Sagel J S
Department of Anesthesiology, Albert Einstein Medical Center, Philadelphia, Pennsylvania 19141, USA.
Anesth Analg. 1995 Jul;81(1):49-51. doi: 10.1097/00000539-199507000-00010.
This study was performed to evaluate whether the presence of either nasal or oral gastric tubes (GTs) would affect the ability to accomplish transesophageal atrial pacing (TAP). After endotracheal intubation, pacing esophageal stethoscopes were placed and the TAP thresholds were measured in 20 patients. With the PES fixed in position, GTs were inserted and pacing thresholds were remeasured. TAP was accomplished in all patients pre- and postinsertion. The mean +/- SD, range, and median TAP thresholds (mA) were 13.7 +/- 5.8, 7-25, and 12 preinsertion and 13.9 +/- 5.2, 5.5-25, and 13 postinsertion. The preinsertion-postinsertion differences ranged from -6 to 5 mA with a mean of the difference of -0.2 mA (95% confidence interval, -1.61-1.21 mA). No significant difference between the pre- and postinsertion groups was detected by the paired t-test, P = 0.77. In summary, the presence of GTs does not significantly affect TAP thresholds. Attempts to achieve TAP are expected to be successful in patients with either a nasal or oral GT in place.
本研究旨在评估鼻胃管或口胃管的存在是否会影响经食管心房起搏（TAP）的完成能力。气管插管后，放置起搏食管听诊器并测量20例患者的TAP阈值。在固定好起搏食管听诊器位置后，插入胃管并重新测量起搏阈值。所有患者在插入胃管前后均成功完成TAP。插入胃管前TAP阈值的均值±标准差、范围和中位数（mA）分别为13.7±5.8、7 - 25和12，插入后分别为13.9±5.2、5.5 - 25和13。插入胃管前后的差异范围为 - 6至5 mA，平均差异为 - 0.2 mA（95%置信区间， - 1.61 - 1.21 mA）。配对t检验未检测到插入胃管前后两组之间存在显著差异，P = 0.77。总之，胃管的存在不会显著影响TAP阈值。对于留置鼻胃管或口胃管的患者，进行TAP有望成功。
