Y-shaped catheter improves carbon dioxide clearance during apnoeic oxygenation in tracheal surgery

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URI http://shark.lib.kagawa-u.ac.jp/kuir/metadata/28764
Title
Y-shaped catheter improves carbon dioxide clearance during apnoeic oxygenation in tracheal surgery
File
Description

Abstract
OBJECTIVES::

Apnoeic oxygenation is a ventilation method in tracheal surgery, but has the disadvantage of causing progressive hypercapnia. The aim of this experimental study was to evaluate the efficacy of a Y-shaped catheter for the prevention of accumulation of carbon dioxide (CO2) in tracheal surgery.
METHODS::

Surgery for tracheal resection and reconstruction was performed in 10 beagles under general anaesthesia. Before transecting the trachea, the dogs were hyperventilated for 10 min with pure oxygen. After the airway was opened, ventilation was maintained with a small catheter for apnoeic oxygenation for 30 min until the end of the tracheal reconstruction. Y-shaped catheters were used in 5 dogs and straight catheters were used in 5 dogs for oxygen insufflation. Haemodynamic values and blood gas values were evaluated and compared between the 2 groups.
RESULTS::

The mean elevation in the CO2 partial pressure value per minute from 5 min after the start of the procedure to the end of apnoeic oxygenation was 1.34 mmHg [95% confidence interval (CI) 1.00-1.68] in the Y-shaped catheter group and 2.03 mmHg (95% CI 1.54-2.53) in the straight catheter group (P < 0.018). The total CO2 partial pressure elevation value was 59.5 mmHg in the Y-shaped catheter group and 89.0 mmHg in the straight catheter group (P < 0.006). There were no significant differences in haemodynamic values between the 2 groups.
CONCLUSIONS::

Apnoeic oxygenation using a Y-shaped catheter represses the accumulation of CO2 compared with a straight catheter in canine tracheal resection-reconstruction surgery.

KEYWORDS:

Apnoeic oxygenation; Carbon dioxide clearance; Catheter; Tracheal surgery

(医博甲724)

Author
著者 横田 直哉
著者(ヨミ) ヨコタ ナオヤ
著者(別表記) Yokota Naoya
Publication Title
European Journal of Cardio-Thoracic Surgery
Publication Title Alternative
Eur J Cardiothorac Surg.
Volume
56
Issue
2
Start Page
393
End Page
399
Publisher
European Association for Cardio-Thoracic Surgery
Oxford University Press
Published Date
2019-02-20
ISSN
1010-7940
NCID
AA1152673X
PMID
30789228
DOI
10.1093/ejcts/ezz036
Resource Type
Thesis or Dissertation
Language
eng
Resource URL
https://doi.org/10.1093/ejcts/ezz036
Rights
エンバーゴ期間満了後の2020年2月20日以降に博士論文本文を掲載します。 / The main text of the doctoral dissertation will be published on February 20, 2020, after the expiration of the embargo period
Copyright © The Author(s) 2019. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery.
"This is the Accepted Version of the following article: Y-shaped catheter improves carbon dioxide clearance during apnoeic oxygenation in tracheal surgery; European Journal of Cardio-Thoracic Surgery; Volume 56 Issue 2 (2019) Pages: 393-399; doi: 10.1093/ejcts/ezz036, which has been published in final form at https://doi.org/10.1093/ejcts/ezz036 . "
Text Version
none
Grant ID
博甲第724号
Grant Date
2019-06-25
Degree Name
博士(医学)
Grantor
香川大学
Set
香川大学
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