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The CobraPLA™ during anesthesia with controlled ventilation: A clinical trial of efficacy

 Sang Beom Nam  ;  Yon Hee Shim  ;  Min Soo Kim  ;  Young Chul You  ;  Youn-woo Lee  ;  Dong Woo Han  ;  Jong Seok Lee 
 YONSEI MEDICAL JOURNAL, Vol.47(6) : 799-804, 2006 
Journal Title
Issue Date
Adult ; Anesthesia/methods* ; Female ; Humans ; Hypopharynx ; Intubation/adverse effects ; Intubation/instrumentation* ; Male ; Middle Aged ; Respiration, Artificial/adverse effects ; Respiration, Artificial/instrumentation*
Airway ; leak pressure ; oxygenation ; supraglottic device (CobraPLA™) ; ventilation
The CobraPLA™ (CPLA) is a relatively new supraglottic airway device that has not been sufficiently investigated. Here, we performed a prospective observational study to evaluate the efficacy of the CPLA during controlled ventilation. In 50 anesthetized and paralyzed patients undergoing elective surgery a CPLA was inserted and inflated to an intracuff pressure of 60 cm H2O. The success rate of insertion upon the first attempt was 82% (41/50), with a mean insertion time of 16.3 ± 4.5 seconds. The adequacy of ventilation was assessed by observing the end tidal CO2 waveform, movement of the chest wall, peak airway pressure (13.5 cm H2O), and leak fraction (4%). We documented the airway sealing pressure (22.5 cm H2O) and noted that the the site of gas leaks at that pressure were either at the neck (52%), the abdomen (46%), or both (2%). In 44 (88%) patients, the vocal cords were visible in the fiberoptic view through the CPLA. There was no gastric insufflation during the anesthesia. Respiratory and hemodynamic parameters remained stable during CPLA insertion. Postoperative blood staining of CPLA was minimal, occurring in 22% (11/50) of patients. Mild and moderate throat soreness was reported in 44% (22/50) and 4% (2/50) of patients, respectively. Lastly, mild dysphonia was observed in 6% (3/50) of patients and mild dysphagia in 10% (5/50) of patients. Our results indicated that the CPLA is both easy to place and allows adequate ventilation during controlled ventilation.
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1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Nam, Sang Beom(남상범) ORCID logo https://orcid.org/0000-0002-9704-1866
Shim, Yon Hee(심연희) ORCID logo https://orcid.org/0000-0003-1921-3391
Yoo, Young Chul(유영철) ORCID logo https://orcid.org/0000-0002-6334-7541
Lee, Youn Woo(이윤우)
Lee, Jong Seok(이종석) ORCID logo https://orcid.org/0000-0002-7945-2530
Han, Dong Woo(한동우) ORCID logo https://orcid.org/0000-0002-8757-663X
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