Titration of Inspired Oxygen to Decrease the Incidence of Postoperative Pulmonary Complications

Unrecognized Condition Clinical Trial

Official title:

Titration of Inspired Oxygen During One-lung Ventilation to Decrease the Incidence of Postoperative Pulmonary Complications: a Randomized Controlled Trial

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06243146
• Other study ID #: SPPH202311011
• Status: Not yet recruiting
• Phase: N/A
• Start date: March 1, 2024
• Est. completion date: December 31, 2025

Study information

• Verified date: January 2024
• Source: Sichuan Provincial People's Hospital
• Contact: Chenghong Wang, MD
• Phone: 13488943096
• Email: 931405180[@]qq.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Lung cancer is with the highest incidence rate and mortality among people over 60 years old in China. Postoperative pulmonary complications (PPCs) is the most common complication after pneumonectomy, which has a significant impact on the short-term and long-term prognosis of patients, and is even the primary risk factor leading to early postoperative death. High fraction of inspired oxygen (FiO2) is an independent risk factor for PPCs, but it is difficult to achieve oxygenation while avoiding hyperxemia during one lung ventilation (OLV). We will randomly divide elderly patients who plan to undergo thoracoscopic pulmonary resection into two groups. During OLV, titration will be used to determine the optimal FiO2 for titration group while FiO2 of 80% will be used for mechanical ventilation for control group. The incidence of postoperative PPCs, hypoxia/hyperxemia, oxygenation index (PaO2/FiO2) and intrapulmonary shunt rate (Qs/Qt), oxidative stress indicators, and prolonged hospital stay will be observed in both groups of patients. We will evaluate the effectiveness and safety of titrating inhaled oxygen concentration in lung protection during OLV.

Description:

Lung cancer is with the highest incidence rate and mortality among people over 60 years old in China. Postoperative pulmonary complications (PPCs) is the most common complication after pneumonectomy, which has a significant impact on the short-term and long-term prognosis of patients, and is even the primary risk factor leading to early postoperative death. High fraction of inspired oxygen (FiO2) is an independent risk factor for PPCs, but it is difficult to achieve oxygenation while avoiding hyperxemia during one lung ventilation (OLV).Elderly patients with decreased lung function are prone to hypoxemia, which is also a high-risk group for postoperative PPCs induced by hyperxemia, with a dual risk of hypoxia and hyperoxia. Perioperative respiratory management is more challenging. Therefore, it is necessary to explore more suitable oxygen supply methods for elderly patients during OLV. We will randomly divide elderly patients who plan to undergo thoracoscopic pulmonary resection into two groups. All patients will be intubated with a left bronchial tube using visual laryngoscopy. Fiberoptic bronchoscopy will be used to comfirm the optimal localization of the tube. Lung protective ventilation strategy will be used during ventilation. Before OLV, FiO2 of 100% will be used. During OLV, titration will be used to determine the optimal FiO2 for titration group while FiO2 of 80% will be used for mechanical ventilation for control group. After OLV, FiO2 of 50% will be used. The incidence of postoperative PPCs, hypoxia/hyperxemia, oxygenation index (PaO2/FiO2) and intrapulmonary shunt rate (Qs/Qt), oxidative stress indicators, and prolonged hospital stay will be compared between 2 groups. The effectiveness and safety of titrating inhaled oxygen concentration during OLV will be elevated.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 160
• Est. completion date: December 31, 2025
• Est. primary completion date: December 31, 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 60 Years to 80 Years

Eligibility

Inclusion Criteria:

• ? General anesthesia with left bronchial tube intubation; ? Age range from 60 to 80 years old; ? 18 kg/m2 = BMI = 30 kg/m2; ? ASA grade I to III; ? Individuals willing to participate in research and sign an informed consent form.

Exclusion Criteria:

• ? CT scan indicates preoperative pulmonary infection, atelectasis, and pneumothorax; ? History of respiratory system diseases (COPD, bronchiectasis, pulmonary alveoli, interstitial lung disease, etc.); ? Previous history of lung surgery; ? First second forced expiratory volume/estimated value (FEV1%)<60%; ? PaO2<60mmhg (1 mmhg=0.133 kpa) or PaO2/FiO2<300mmhg or SpO2<90% in the suction state; ? History of acute upper respiratory tract infection, acute lung injury, acute respiratory distress syndrome, or respiratory failure within 3 months prior to surgery; ? Combined heart failure (NYHA heart function grading = 3); ? Previous history of stroke and cerebral infarction; ? Severe liver dysfunction (liver failure or Child Pugh score B or C) Chronic renal failure (glomerular filtration rate<30 ml/min) Suffering from mental illness, etc., which is not suitable for the author; æ Individuals who have participated in other clinical trials as subjects within the three months prior to participating in the study The patient refused to participate in the study.

Related Conditions & MeSH terms

• Respiratory Aspiration
• Unrecognized Condition

Intervention

Other:
• Titration of Inspired Oxygen
Titration of Inspired Oxygen During One-Lung Ventilation

Locations

Country	Name	City	State
China	Sichuan Provincial People's Hospital	Chengdu	Sichuan

Sponsors (1)

Lead Sponsor	Collaborator
Sichuan Provincial People's Hospital

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	postoperative pulmonary complications	postoperative pulmonary complications	first 7 days