CompletedNot Applicable

Lung Expansion Technics on Chest Wall Mechanics and Preventing Pulmonary Complication After Abdominal Surgery

Brazil171 participantsStarted 2011-01

Plain-language summary

The lung expansion techniques are widely used to prevent postoperative pulmonary complications. However, the effect of each technique on thoracoabdominal mechanics after abdominal surgery and if it influences the rate of postoperative pulmonary complications remains unknown. The investigators hypothesis is that the lung expansion technique that more increases lung volume after abdominal surgery, will be the most efficient in preventing postoperative pulmonary complication after abdominal surgery. The investigators objectives will be to compare the effect of different lung expansion techniques on lung volumes and activation of inspiratory muscle, and prevention of pulmonary complications in patients undergoing upper abdominal surgery. This study will involve 171 patients undergoing elective abdominal surgery. Patients will be randomly divided into 5 groups: no therapy group (n=35), continuous positive airway pressure (CPAP, n=34); volumetric incentive spirometry (VIS, n=34); flow oriented incentive spirometry (FIS, n=33) and deep breathing (DB, n=35). The thoracoabdominal mechanics will be assessed before and 3 days after surgery. Complications will be evaluated by a researcher who did not know to which group each patient belongs.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * candidates for elective upper abdominal surgery expected to last longer than 120 minutes * absent of spine or thoracic deformity * no previous lung parenchyma resection * no tracheostomy * able to understand and perform the maneuvers proposed. Exclusion Criteria: * cancellation of surgery * mechanical ventilation for more than 24 hours in the postoperative period * need for chest tube use * postoperative cardiac complications * surgical complication * reoperation

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

thoracoabdominal volume

Timeframe: third postoperative day

Trial details

NCT IDNCT01993602

SponsorUniversity of Sao Paulo General Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2013-10

View on ClinicalTrials.gov More Surgical Procedure, Unspecified trials