postoperative pulmonary complications
Conditions
Interventions
Gold Standard:Clinical outcomes.
Postoperative pulmonary complications are defined as followed, and PPCs of grade II or above II will be used to calculate the incidence of PPCs:
1.Respiratory infectio
2.Respiratory failure
3.Pleural effusion
4.Atelectasis
5.Pneumothorax
6.Bronchospasm
7.Aspiration pneumonitis.
Index test:Diaphragm Thickness
Change in Thickness of diaphram (?Tdi)
Diaphragmatic inspiratory amplitude (DIA).
Sponsors
Peking University First Hospital,
Eligibility
Sex/Gender
All
Age
50 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Patients aged 50 years or over; 2. Scheduled to undergo upper abdominal surgery with meidan incision or right subcostal incision (liver, biliary tract or pancreatic surgery). For those who undergo laparoscopic surgery, the expected length of incision must be 5 cm or more; 3. Expected duration of 2 hours or longer; 4. The tracheal intubation planned to removed witnin 12 hours after operation; 5. Agree to participate and sigh the informed consent.
Exclusion criteria
Exclusion criteria: 1.Preoperative diagnosis of pulmonary complications; 2.Planned diaghragmatic folding or resection; 3.History of neuromuscular disease; 4.New stroke, traumatic brain injury or intracranial hypertension within 3 months before operation; 5.Previous operations injuring phrenic nerve or folding diaphragm; 6.Obesity (BMI>30kg/m2); 7.Chest wall deformity or severe scoliosis; 8.Shock or severe hemodynamic instability; 9.Failure to coopertae with breathing for diaphragm ultrasonography; 10.Acute exacerbation of COPD or poorly controlled asthma.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diaphragm Thickness;Change in Thickness of diaphram;Diaphragmatic inspiratory amplitude (DIA);SEN, SPE, ACC, AUC of ROC; | — |
Countries
China
Contacts
Public ContactYan Ting
Peking University First Hospital
Outcome results
None listed