Nasal High Flow in Bariatric Surgery

Status Not yet recruiting

Clinical Trial Summary

High frequency nasal cannula (HFNC) provides an inspiration O2 fraction of 21-1% and it has a minimal dead space and can be well tolerated due to humidified air. Group I patients will be applied HFNC before and after bariatric surgery, Group II patients will be applied a constant O2 concentration via face mask. Oxygen pressure, oxygen saturation, carbon dioxide, respiration frequency, forced vital capacity will be measured before and after surgery.

Clinical Trial Description

Morbid obese patients are prone to atelectasis and hypoxemia after bariatric surgery. High frequency nasal cannula (HFNC) provides an inspiration O2 fraction of 21-1% and it has a minimal dead space and can be well tolerated due to humidified air. It provides 5-7 cm H2O positive end expiratory pressure to the airways and may prevent atelectasis. In the preoperative room, forced vital capacity, peripheral oxygen saturation (SpO2), respiratory frequency, heart rate (HR), blood pressure (BP), carbon dioxide, oxygen pressure and carbon dioxide partial pressure values in blood gas analysis will be recorded. We will apply HFNC in the preoperative and postoperative period to Group I patients, while applying a constant O2 concentration to Group II patients. After appliying HFNC for two hours in Group I patients and O2 via face mask in Group II patients measurements will be repeated. During surgery, similar mechanical ventilation parameters will be applied to the patients. After the operation Group I patients will be applied HFNC, while Group II patients will be applied O2 via face mask in the recovery room for two hours. Measurements will be repeated. Primary end point of the study is the association between oxygen pressure, carbon dioxide partial pressure values among preoperative before and after HFNC and O2 and postoperative times. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04048798
Study type	Interventional
Source	Istanbul University
Contact	Cigdem A BEYOGLU
Phone	+905052278176
Email	akyolbeyoglu@gmail.com
Status	Not yet recruiting
Phase	N/A
Start date	January 2020
Completion date	February 2021

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