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Damage to the cuff of EMG tube at endotracheal intubation by using a lightwand -A case report-
김현숙,박근석,강미화,박창두 대한마취통증의학회 2010 Korean Journal of Anesthesiology Vol.59 No.-
Electromyogpraphic endotracheal tube (EMG tube) is a new device used to monitor recurrent laryngeal nerve integrity during thyroid surgery. The EMG tube has 2 pairs of electrodes on the surface of silicon-based tube reached to inner space of tube cuff. We experienced an unusual endotracheal tube-related problem from the distinct structural feature of the EMG tube. In this case, we intubated a patient who had difficult airway with the EMG tube using a lightwand. After successful endotracheal intubation, we could not expand the pilot balloon and ventilate the patient effectively. We removed the EMG tube and found that one of electrodes of the EMG tube is bended and made a right angle with the long axis of the tube, and perforated the tube cuff. So we report this case to make anesthesia providers aware that much more attention is needed to use EMG tube during endotracheal intubation.
Intubating Laryngeal Mask Airway 용 강화튜브를 이용한 턱밑 기관내 삽관 : 증례 보고
박호동,김기준,김형준,하지영 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.43 No.4
Nasotracheal intubation, when performed after craniomaxillofacial trauma, may result in the passage of the tube into the cranium, causing significant brain damage. Orotracheal intubation may be preferred, but interferes with the placement of intermaxillary fixation. To avoid these problems, a tracheostomy may be an alternative but it carries significant morbidity. The submental route for endotracheal intubation has been proposed as an alternative to a tracheostomy in the surgical management of craniomaxillofacial trauma. Ideally, this maneuver is performed by using a reinforced tube. Unfortunately, however, some reinforced tracheal tubes are manufactured with nondetachable connectors. Removing them forcefully may be possible, but they will then stay dangerously loose after reconnection. We report a case in which a standard oral Ring-Adair-Elwyn (RAE) tube and reinforced tube for ILMA was used so not to be loose after the reconnection. (Korean J Anesthesiol 2002; 43: 507~510)
증례보고 : 기관협착 환자의 후두미세수술 시 연장된 기관내관을 이용한 기도관리
한동우 ( Dong Woo Han ),장철호 ( Chul Ho Chang ),이종석 ( Jong Seok Lee ),나성원 ( Sung Won Na ),양혜건 ( Hye Gun Yang ),남상범 ( Sang Beom Nam ) 대한마취과학회 2006 Korean Journal of Anesthesiology Vol.51 No.3
A small sized tube can be used for a patient with tracheal stenosis. However, an ordinary endotracheal tube may be not long enough to pass over stenotic lesion of trachea in adult patient for nasotracheal intubation, when stenotic lesion is located distally. We experienced a patient with severe tracheal stenotic lesion 5 cm above the carina and 3.1 cm length of stenotic lesion scheduled for laryngeal microscopic surgery. The two 4.0 mm tubes-connected tube using modified connector was designed and prepared. We performed fiberoptic-guided awake nasotracheal intubation using the extended endotracheal tube and the patient was successfully managed without complications until the surgery was completed. (Korean J Anesthesiol 2006; 51: 367~70)
( Kyung Jee Lim ),( Soo Ryun Kim ),( Seung Ju Kim ),( Seon Joo Kim ),( Soo Kyung Lee ),( Hyun Soo Moon ),( Sung Wook Park ),( Hwa Ja Kang ) 경희대학교 경희의료원 2015 慶熙醫學 Vol.30 No.1
Purpose: To determine the target effect-site concentration of propofol required to substitute a ProSeal laryngeal mask airway (PLMA) for an endotracheal tube for providing suitable emergence condition in adult undergoing neurosurgery. Methods: Anaesthesia was maintained with propofol and remifentanil using target controlled infusion (TCI). After end of surgery, predetermined effect-site concentration of propofol (the starting target concentration of 3.5 μg/ml) and remifentanil 2 ng/ml was held for 10 min. A patient’s response to the endotracheal tube/ PLMA exchange was described as ‘successful’ or ‘unsuccessful’. The propofol concentration of each patient was determined by a modification of Dixon’s up-and.down method steps by 0.5 μg/ml and concentration for exchange in 50% and 95% patients were obtained by a logistic regression model. Results: The target effect-site concentration of propofol required for successful endotracheal tube/ PLMA exchange in 50% of patients was 3.86±0.21 μ g/ml and the time from an exchange till the removal of LMA was 8.4±5.8 min. Conclusions: The effect-site concentration of propofol required for endotracheal tube/PLMA exchange in 95% of patients is 4.50 μg/ml.
박정선,권영석,이상석,윤준현,김동원 대한마취통증의학회 2010 Korean Journal of Anesthesiology Vol.59 No.-
The Montgomery tracheal tube (T-tube) is a device used as a combined tracheal stent and airway after laryngotracheoplasty for patients with tracheal stenosis. This device can present various challenges to anesthesiologists during its placement, including the potential for acute loss of the airway, inadequate administration of inhalation agents, and inadequacy of controlled mechanical ventilation. The present case of successful airway management used a laryngeal mask airway under total intravenous anesthesia with propofol and remifentanil in the insertion of a Montgomery T-tube in a tracheal resection and thyrotracheal anastomosis because of severe subglottic stenosis.
송준경,김형곤,김정은,장명수,강종만 대한마취통증의학회 2014 Korean Journal of Anesthesiology Vol.66 No.3
A 28-year-old male patient with occipito-atlanto-axial instability underwent a cervical fusion with posterior technique. Post-operatively, the endotracheal tube (ETT) was removed, and the patient was transferred to the intensive care unit. After transfer, an upper airway obstruction developed and reintubations with a laryngoscope were attempted but failed. We inserted a #4 proseal laryngeal mask airway (LMA) and passed a 5.0 mm ETT through the LMA with the aid of a fiberoptic bronchoscope. We passed a tube exchanger through the 5.0 mm ETT and exchanged it with a 7.5 mm ETT. This method may be a useful alternative for difficult tracheal intubations.
강매화,Chi Bum In,Man-ho Kim,Kyoung-Ji Lim,박은영,Hyo Min Lee,이수경 대한마취통증의학회 2011 Korean Journal of Anesthesiology Vol.61 No.6
We report a case of an erroneously elevated bispectral index (BIS) during robot assisted thyroidectomy using an electromyographic endotracheal tube (EMG tube), which is safe and useful for laryngeal electromyographic monitoring. Ten minutes after start of the operation, a sudden increase of BIS value up to 98 was noticed. The BIS values were not decreased to < 65 with supplemental anesthetics. The anesthetic method was changed from total intravenous anesthesia to balanced anesthesia. The BIS sensor and monitor were changed and other models were used. These interventions did not alter BIS values. BIS levels remained between 60 and 70 throughout the main procedure and intermittently increased to the mid-90s without any trace of poor signal quality. At the end of the surgery, the BIS values returned to normal range. The patient did not complain of intraoperative recall. Knowledge of potential interference from the use of an EMG tube must be considered when interpreting BIS.