Difficulty in positioning after right-sided double-lumen tube intubation with a narrow safety range
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.? Aged 18 to 75 years, with ASA classification I to III; 2.? Elective left-sided thoracoscopic surgery (lobectomy, segmentectomy or wedge resection); 3. Preoperative three-dimensional reconstruction of chest CT shows that the distance from the tracheal carina to the distal edge of the opening of the right upper lobe is >= 20mm; 4. Voluntarily sign the informed consent form.?
Exclusion criteria
Exclusion criteria: 1. Preoperative CT shows that the distance from the tracheal carina to the distal edge of the opening of the right upper lobe is < 20mm; 2. Presence of airway anatomical variations (such as tracheal bronchus), tracheal stenosis, airway masses, or a previous history of airway surgery; 3. Anticipated difficult airway (Mallampati grade = III, thyromental distance < 6 cm, etc.); 4. Severe cardiopulmonary dysfunction (LVEF < 40%, FEV1 < 50% of the predicted value); 5. Pregnancy or lactation; 6. Refusal to participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The success rate of the first exposure after intubation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Intubation time;The number of cases requiring intervention due to inadequate one-lung ventilation;Repositioning time after turning;Arterial blood gas analysis at 30 min after one-lung ventilation: PaO2, PaCO2;Increase rate of peak airway pressure;Incidence of tube displacement?;First positioning time?; | — |
Countries
China
Contacts
Shanghai Chest Hospital