A comparison of the effectiveness of the streamlined liner of pharyngeal airway in paralyzed and nonparalyzed patients undergoing gynecological surgery: a randomized trial.
OBJECTIVE
To compare the effectiveness of streamlined liner of pharyngeal airway (SLIPA) in paralyzed and nonparalyzed, anesthetized patients undergoing gynecological surgery.


METHODS
Prospective randomized double-blind clinical trial.


METHODS
Intraoperative.


METHODS
A total of 80 female patients with American Society of Anesthesiologists class I or II and who were undergoing gynecological surgery.


METHODS
The patients were randomly allocated to either the nonparalyzed group (group NR, n=40) or the paralyzed group (group R, n=40).


METHODS
Oropharyngeal leakage pressure was the primary outcome. Insertion time; number of insertion attempts; success rate at first insertion; involuntary movement; peak inspiratory pressure (PIP); leakage fraction; hemodynamic changes; complications, such as blood tinging, regurgitation, and sore throat; and recovery time were also evaluated for secondary outcomes.


RESULTS
Oropharyngeal leakage pressure, which is primary outcome, was no difference among the groups. Insertion time, number of insertion attempts, success rate at first insertion, involuntary movement, leakage fraction, hemodynamic changes, and complications were not statistically different among the groups. The PIP in group NR was significantly increased compared to that of group R (P=.002). Recovery time was significantly longer in group R than in group NR (P<.001).


CONCLUSIONS
SLIPA had good performance in both paralyzed and nonparalyzed patients. There was no difference in SLIPA performance or complications irrespective of muscle relaxant use, except decrease in PIP and prolong recovery time in paralyzed patients.
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
Min Kyoung
MK
Kim
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea. Electronic address: roman00@naver.com.
Hyun
H
Kang
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
Geun Joo
GJ
Choi
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
Yong Hee
YH
Park
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
Jong In
JI
Oh
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
Chong Wha
CW
Baek
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
Yong Hun
YH
Jung
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
Young Cheol
YC
Woo
Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
Yeon Sil
YS
Lee
D000328:Adult; D058109:Airway Management / Q000295:instrumentation / Q000379:methods*; D004311:Double-Blind Method; D004867:Equipment Design; D005260:Female; D013509:Gynecologic Surgical Procedures / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D003473:Neuromuscular Nondepolarizing Agents / Q000008:administration & dosage*; D010243:Paralysis / Q000139:chemically induced*; D010614:Pharynx; D011446:Prospective Studies; D013997:Time Factors
D003473:Neuromuscular Nondepolarizing Agents
Airway; Anesthesia, general; Laryngeal mask airway; Neuromuscular blockade; Streamlined liner of pharyngeal airway, gynecological surgical procedures