Lung Function After Abdominal Surgery

Umeå University

Status: Completed

Conditions: Postoperative Complications; Abdominal Surgery; Lung Function

Treatments: Diagnostic Test: Lung function before and after surgery

Study type: Observational

Funder types: Other

Identifiers

NCT04502420

2018-223-31M

Details and patient eligibility

About

The study aims to investigate changes in lung function and diffusion capacity for carbon monoxide after open and minimally invasive abdominal surgery and whether such changes can explain hypoxia after surgery.

Inclusion: Patients undergoing surgery for abdominal surgery

Exclusion: Dementia or cognitive impairment that makes it impossible to participate in studies.

Investigation: The day before surgery and the day after surgery

Primary outcome measures:

• Pulmonary function test with dynamic spirometry (Vital capacity, FEV1) and diffusion capacity for carbon monoxide.
• PaO2, PaCO2 and oxygen saturation (blood gas)

Full description

Postoperative hypoxia complicates 30% - 50% of abdominal surgeries. People at particular risk for postoperative pulmonary complications including severe hypoxia are those who undergo abdominal surgery, emergency surgery or have a respiratory failure due to chronic lung disease including obstructive sleep apnea. The cause of postoperative restrictive lung function and hypoxia is unknown. Previous studies report that PaO2 decreases by an average of 2 kPa after abdominal surgery, while PaCO2 is unchanged and vital capacity decreases by 35%.

The study aims to investigate changes in lung function and diffusion capacity for carbon monoxide after open and minimally invasive abdominal surgery and whether such changes can explain hypoxia after surgery.

Design: Prospective cohort study

Inclusion: Patients undergoing surgery for abdominal surgery

Exclusion: Dementia or cognitive impairment that makes it impossible to participate in studies.

Method: The day before surgery and the day after surgery: Lung function (Vital capacity and FEV1) using box and diffusion capacity measurements and blood gas measurement

Primary outcome measures:

Pulmonary function test with dynamic spirometry (Vital capacity, FEV1) and diffusion capacity for carbon monoxide. PaO2, PaCO2 and oxygen saturation (blood gas) Other variables examined: age, sex, height, weight, type of surgery, type of anesthesia, smoking status, length of surgery, previously known lung disease.

Enrollment: 59 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adult patients (18 years old and older) scheduled for surgery in the abdomen at department of Surgery, Urology and Gynecologi, Umeå University hospital.
• Must be able to perform a lung function test

Exclusion criteria

• Dementia or severe cognitive impairment

Trial design

59 participants in 1 patient group

Abdominal surgery

Description:

People who to be operated in the abdomen are investigated before and after surgery.

Treatment:

Diagnostic Test: Lung function before and after surgery