The effect of endotracheal tube with injecting medicine to endotracheal and laryngopharynx for topical anesthesia combined with transcutaneous electrical acupoint stimulation on the hemodynamics of the intubation period

Abstract

Objective To observe the effects of endotracheal tube with injecting medicine to endotracheal and laryngopharynx for topical anesthesia, transcutaneous electrical acupoint stimulation (TEAS), and endotracheal-laryngopharynx for topical anesthesia combined with TEAS on hemodynamics during intubation. Methods One hundred patients that belonged to American Society of Anesthesiologists (ASA) grade Ⅰ or Ⅱ, in accordance with the random number table, were categorized into four groups (n=25). They were endotracheal tube (group A), endotracheal tube with injecting medicine to endotracheal and laryngopharynx (group B), TEAS combined with endotracheal tube (group C) and endotracheal tube with injecting medicine to endotracheal and laryngopharynx combined with TEAS (group D). All patients were monitored continuously on systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), cardiac index (CI), systemic vascular resistance index (SVRI) and bispectral index (BIS) respectively in the calm state at timepoints of entering the operation room (T0), before tracheal intubation after intravenous induce anesthetics (T1), immediately after tracheal intubation (T2), 3 min after tracheal intubation (T3), 5 min after tracheal intubation (T4) and 10 min after tracheal intubation (T5). Results ① Compare with timepoint T0, SBP was decreased markedly (P 0.05). Conclusions Both endotracheal tube with injecting medicine to endotracheal and laryngopharynx for topical anesthesia and TEAS can reduce excessive hemodynamic responses during the intubation to some extent, but combination of them will has better effect. Key words: Tracheal intubation; Endotracheal tube with injecting medicine; Topical anesthesia; Acupoints; Transdermal electrostimulation; Hemodynamics