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The relationship between oxygen saturation rise time under preoperative pure oxygen inhalation and postoperative cardiopulmonary complications in patients undergoing thoracic surgery: a prospective observational study

The relationship between oxygen saturation rise time under preoperative pure oxygen inhalation and postoperative cardiopulmonary complications in patients undergoing thoracic surgery: a prospective observational study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500104374
Enrollment
Unknown
Registered
2025-06-16
Start date
2023-02-01
Completion date
Unknown
Last updated
2025-06-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Postoperative cardiopulmonary complications

Interventions

Postoperative cardiopulmonary complications group:None
None postoperative cardiopulmonary complications group:None

Sponsors

The First Affiliated Hospital of Kunming Medical University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Elective thoracic surgery; 2. Age> 18 years old; 3. ASA classification I.-III; 4. The patient and his/her family agree and sign the anesthesia consent form before surgery, and stay in the hospital for observation for more than 3 days after surgery; 5. No serious language communication barriers, can agree to and accept the postoperative follow-up content after explanation; 6. No cognitive dysfunction.

Exclusion criteria

Exclusion criteria: 1. Refusal by the patient or family; 2. Presence of severe language communication disorder; 3. Patients with high risk of esophageal reflux and who do not strictly fast water and have a full stomach before surgery may cause reflux and aspiration of gastric contents during surgery; 4. Patients who did not undergo pulmonary function tests before surgery; 5. Severe dysfunction of important organs such as heart, lungs, liver and kidneys; 6. Patients with pulmonary hypertension combined with right heart failure, atrial fibrillation, NYHA cardiac function grade 3 or above, and congenital heart disease; Patients with severe arrhythmia, second- or third-degree atrioventricular block; 7. Patients with severe liver and kidney failure; 8. Patients with peripheral neuropathy, severe anemia (Hb<30g/L), severe hypoproteinemia (albumin<20g) or other serious blood diseases; 9. Patients with a history of allergy to anesthetic drugs.

Design outcomes

Primary

MeasureTime frame
The time it takes for Sp02 to rise to 100% under pure oxygen inhalation;Postoperative cardiopulmonary complications;

Secondary

MeasureTime frame
The maximum peak value that SpO2 can rise under inhaling pure oxygen (limited to 5 minutes);Arterial blood gas analysis;Respiratory mechanical indicators (respiratory system compliance, peak airway pressure, mean airway pressure);Hemodynamic indicators (systolic blood pressure, diastolic blood pressure, mean arterial pressure, heart rate);

Countries

China

Contacts

Public ContactYu Fang

The First Affiliated Hospital of Kunming Medical University

fangyu@ydyy.cn+86 138 8809 1314

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026