Department of Anesthesiology and Pain Medicine, and Institute of Clinical Research, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk 561-712, Republic of Korea.
J Clin Anesth. 2012 Jun;24(4):270-4. doi: 10.1016/j.jclinane.2011.08.006.
To evaluate the reliability of assessments of nasal flow rate for improved nostril selection for nasotracheal intubation.
Prospective, randomized, double-blinded study.
Operating room of a university-affiliated hospital.
118 ASA physical status 1 and 2 patients, aged 18-65 years, scheduled for elective maxillofacial and oral surgery requiring nasotracheal intubation.
Patients were randomized to the left or right nostril groups. Forced vital capacity (FVC) and forced expiratory volume in one second (FEV(1)) through the mouth and each nostril were measured before anesthesia induction.
The relationship between the rate of airflow through the selected nostril and frequency of epistaxis and navigability of the nasotracheal tube were evaluated.
There were no significant differences in the frequency of epistaxis and degree of navigability of the tracheal tube between the left and right nostril groups. In both nostril groups, patients who suffered epistaxis showed significantly less FEV(1) and FEV(1)/FVC values than did patients without epistaxis (P < 0.05). In addition, in both groups patients who passed the tube easily showed significantly higher FEV(1) and FEV(1)/FVC values than did patients who passed the tube with resistance or failed tube passage (P < 0.05).
Measurement of nasal flow rate is a useful clinical method for choosing a nostril for nasotracheal intubation.
评估鼻流量评估对改善经鼻气管插管时鼻孔选择的可靠性。
前瞻性、随机、双盲研究。
一家大学附属医院的手术室。
118 名 ASA 身体状况 1 和 2 级的患者，年龄 18-65 岁，计划接受择期颌面和口腔手术，需要经鼻气管插管。
患者随机分配到左鼻孔或右鼻孔组。在麻醉诱导前测量口腔和每个鼻孔的用力肺活量（FVC）和第一秒用力呼气量（FEV1）。
评估所选鼻孔气流率与鼻出血频率和经鼻气管插管可操作性之间的关系。
左鼻孔组和右鼻孔组之间的鼻出血频率和气管导管可操作性程度无显著差异。在两个鼻孔组中，鼻出血患者的 FEV1 和 FEV1/FVC 值明显低于无鼻出血患者（P<0.05）。此外，在两组中，容易通过导管的患者的 FEV1 和 FEV1/FVC 值明显高于通过导管有阻力或导管插入失败的患者（P<0.05）。
鼻流量测量是选择经鼻气管插管鼻孔的一种有用的临床方法。
