Factors Affecting the Intracuff Pressure of Wire-reinforced Endotracheal Tubes during General Anesthesia Using Nitrous Oxide

2006 ◽  
Vol 50 (6) ◽  
pp. S1 ◽  
Author(s):  
Sinyoung Kang ◽  
Hee Jung Baik ◽  
Yun Jin Kim ◽  
Jong Hak Kim
Keyword(s):  
Nitrous Oxide ◽  
General Anesthesia ◽  
Intracuff Pressure ◽  
Factors Affecting ◽  
Endotracheal Tubes

Factors Affecting the Intracuff Pressure of an Endotracheal Tube during General Anesthesia Using Nitrous Oxide

2002 ◽  
Vol 42 (1) ◽  
pp. 50
Author(s):  
Hee Jung Baik ◽  
Jong Hak Kim ◽  
Choon Hi Lee
Keyword(s):  
Nitrous Oxide ◽  
General Anesthesia ◽  
Endotracheal Tube ◽  
Intracuff Pressure ◽  
Factors Affecting

Comparison of Cuffed and Uncuffed Endotracheal Tubes in Young Children during General Anesthesia

1997 ◽  
Vol 86 (3) ◽  
pp. 627-631 ◽  
Author(s):  
Henry H. Khine ◽  
David H. Corddry ◽  
Robert G. Kettrick ◽  
Thalia M. Martin ◽  
John J. McCloskey ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Young Children ◽  
General Anesthesia ◽  
Operating Room ◽  
Gas Flow ◽  
Full Term ◽  
Internal Diameter ◽  
Endotracheal Tubes ◽  
Term Newborns ◽  
Cuffed Tube

Background Uncuffed endotracheal tubes are routinely used in young children. This study tests a formula for selecting appropriately sized cuffed endotracheal tubes and compares the use of cuffed versus uncuffed endotracheal tubes for patients whose lungs are mechanically ventilated during anesthesia. Methods Full-term newborns and children (n = 488) through 8 yr of age who required general anesthesia and tracheal intubation were assigned randomly to receive either a cuffed tube sized by a new formula [size(mm internal diameter) = (age/4) + 3], or an uncuffed tube sized by the modified Cole's formula [size(mm internal diameter) = (age/4) + 4]. The number of intubations required to achieve an appropriately sized tube, the need to use more than 21.min-1 fresh gas flow, the concentration of nitrous oxide in the operating room, and the incidence of croup were compared. Results Cuffed tubes selected by our formula were appropriate for 99% of patients. Uncuffed tubes selected by Cole's formula were appropriate for 77% of patients (P < 0.001). The lungs of patients with cuffed tubes were adequately ventilated with 2 1.min-1 fresh gas flow, whereas 11% of those with uncuffed tubes needed greater fresh gas flow (P < 0.001). Ambient nitrous oxide concentration exceeded 25 parts per million in 37% of cases with uncuffed tubes and in 0% of cases with cuffed tubes (P < 0.001). Three patients in each group were treated for croup symptoms (1.2% cuffed; 1.3% uncuffed). Conclusions Our formula for cuffed tube selection is appropriate for young children. Advantages of cuffed endotracheal tubes include avoidance of repeated laryngoscopy, use of low fresh gas flow, and reduction of the concentration of anesthetics detectable in the operating room. We conclude that cuffed endotracheal tubes may be used routinely during controlled ventilation in full-term newborns and children during anesthesia.

Intracuff pressure of endotracheal tubes with different internal diameters in ventilation with nitrous oxide

2000 ◽  
Vol 17 (Supplement 19) ◽  
pp. 29
Author(s):  
C. Retroz Marques ◽  
A. Moreira Marques ◽  
A. C. Lopes
Keyword(s):  
Nitrous Oxide ◽  
Intracuff Pressure ◽  
Endotracheal Tubes

scholarly journals Factors affecting general or regional anesthesia preference in patients with elective surgery

2020 ◽  
Vol 7 (7) ◽  
pp. 570-574
Author(s):  
Esra Adıyeke ◽  
Levent Adıyeke
Keyword(s):  
General Anesthesia ◽  
Regional Anesthesia ◽  
Significant Positive Correlation ◽  
Elective Surgery ◽  
Education Level ◽  
Foot Surgery ◽  
Factors Affecting ◽  
Positive Correlation ◽  
The Mean ◽  
To Receive

Objective: This study aimed to investigate the factors that affect the preference of the anesthesia method in patients who were indicated for general or regional anesthesia. Material and Methods: A descriptive questionnaire was used to evaluate the opinions of 123 patients who were planned to undergo elective surgery in the orthopedics and traumatology outpatient clinic between January 2018 and June 2019. Results: 73 women (%59) and 50 men (%41) participated in the study. The mean age was 58.62±11 years. General anesthesia was preferred in 58% of the patients. The most common reason for rejection was that the patients who preferred general anesthesia did not want to receive visual and auditory stimuli during the surgical procedure. There was a significant positive correlation between education level and regional anesthesia preference rate. There was a significant positive correlation between the regional anesthesia preference rate of patients receiving hand and foot surgery indications. Conclusion: The preference of the majority of patients was found to be general anesthesia method. Additionally, the type of surgery and education level of the patients was found to be effective in preference of the anesthesia method.

The Effect on Intracuff Pressure of Various Nitrous Oxide Concentrations Used for Inflating an Endotracheal Tube Cuff

2000 ◽  
Vol 91 (3) ◽  
pp. 708-713 ◽  
Author(s):  
Fujio Karasawa ◽  
Takashi Ohshima ◽  
Isao Takamatsu ◽  
Takafumi Ehata ◽  
Isao Fukuda ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Endotracheal Tube ◽  
Intracuff Pressure ◽  
Endotracheal Tube Cuff ◽  
Tube Cuff

Stimulus Processing during Apparent Unconsciousness in Anesthetized Volunteers

1986 ◽  
Vol 62 (2) ◽  
pp. 587-591 ◽  
Author(s):  
Benno Bonke ◽  
Jože Rupreht ◽  
John H. M. Van Eijndhoven
Keyword(s):  
Nitrous Oxide ◽  
General Anesthesia ◽  
Motor Response ◽  
Effective Concentration ◽  
Healthy Male ◽  
Unconscious Perception ◽  
Stimulus Processing ◽  
Motor Responses ◽  
Minimal Effective Concentration ◽  
Period Return

Return of motor-responses upon request as an indicator of stimulus processing during apparent unconsciousness in general anesthesia was studied in 8 healthy, male volunteers during prolonged inhalation of nitrous oxide. First the minimal effective concentration of nitrous oxide was established for each volunteer, based upon continued absence of motor-responses to repeated verbal commands. One week later this concentration of nitrous oxide was administered for a 3-hr. period; return of motor-responses after at least 30 min. of absence was considered a sign of so-called unconscious perception. Four volunteers showed return of motor-response within the 3 hr. of exposure, but two of these had been rather restless throughout the session. Results indicate that unexpected processing of information by patients may occur during presumed unconsciousness after a prolonged inhalation of nitrous oxide in general anesthesia.

Changes in intracuff pressure of cuffed endotracheal tubes while positioning for adenotonsillectomy in children

2016 ◽  
Vol 26 (5) ◽  
pp. 500-503 ◽  
Author(s):  
Griffin H. Olsen ◽  
Senthil G. Krishna ◽  
Kris R. Jatana ◽  
Charles A. Elmaraghy ◽  
James M. Ruda ◽  
...  
Keyword(s):  
Intracuff Pressure ◽  
Endotracheal Tubes

Early life exposure to extended general anesthesia with isoflurane and nitrous oxide reduces responsivity on a cognitive test battery in the nonhuman primate

2019 ◽  
Vol 70 ◽  
pp. 80-90 ◽  
Author(s):  
John C. Talpos ◽  
John J. Chelonis ◽  
Mi Li ◽  
Joseph P. Hanig ◽  
Merle G. Paule
Keyword(s):  
Nitrous Oxide ◽  
General Anesthesia ◽  
Nonhuman Primate ◽  
Early Life ◽  
Test Battery ◽  
Cognitive Test ◽  
Early Life Exposure
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