Clinical trial NCT04913428: Breathing Exercises for Pulmonary Function of Post-laparotomy Patients .
Official title: Comparison of Blow-bottle Technique and Interdigital Breathing for Pulmonary Function of Post-laparotomy Patients .
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Laparotomy Patients
Keywords: Pulmonary function
Chest expansion
Laparotomy
Spirometry
Lead sponsor: Riphah International University
Sponsor class: OTHER
First posted: 2021-06-04
Enrollment: 28
Sex: ALL
Minimum age (years): 25
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The study is designed to compare the effects of blow bottle technique and interdigital exercises on the pulmonary functions of the post laparotomy patients where there is sudden decline in lung function and increased rate of complications after the surgery. A randomized control trial was conducted including post laparotomy patients, randomly allocated to interventional and control groups. Both the groups received breathing exercises along with conventional treatment during phase I rehabilitation. Data was collected at baseline, before and after every session and after 6 sessions before patient discharge from hospital. Outcome measures include assessment of lung volumes and capacities, oxygen saturation and vitals of the post laparotomy patients

Detailed description: Pulmonary complications are common in post laparotomy patients because of multiple pre operative, intra operative and post operative factors. To manage these complications many interventions and breathing techniques are used. These complications alter the pulmonary function leading to decreased chest expansion, oxygen saturation and post operative atelectasis. Anesthetic drugs that also cause cardiac depression along with hemodynamic instability of the patient. Incision given to the chest or abdominal wall during procedure causes to lose the integrity of respiratory muscles which effects the functions of the muscle directly. Respiratory muscles are compromised, normal lung volumes are depressed. More than 75% of patients who are receiving neuromuscular blocking agent develops atelectasis. The estimated time after surgery for patient to return to its preoperative health status is approximately 6 weeks. These complications increase the hospital length of stay and cost associated with it as well as increase the morbidity and mortality.

Lung expansion techniques (LETs) are widely used to prevent postoperative pulmonary complications (PPCs). However, the effects of each of these techniques on thoraco-abdominal mechanics and PPC incidence after abdominal surgery remain unclear. Active Cycle of Breathing Techniques (ACBT) has shown to be effective in mobilizing and clearing the excess bronchial secretions and to improve lung function. It neither causes nor increases hypoxemia or increases airflow obstruction. Chest physiotherapy and breathing exercises are often prescribed to patients undergoing cardiac surgery and abdominal surgery in order to prevent or reduce post-operative pulmonary complications. There are different breathing techniques with and without mechanical devices after the surgery, but there is controversy regarding which breathing techniques are the most effective.

Researches have proved change in pulmonary functions by the use of various breathing exercises. Depressed pulmonary functions i.e. decreased forced vital capacity (FVC) , decreased forced expiratory volume (FEV1), Peak Expiratory Flow Rate (PEFR) are seen as result of disturbed lung function. Alteration in function of diaphragm contributes in postoperatively pulmonary function disturbances. Chest physiotherapy is implied for minimizing the altered lung functions and complications. This includes multiple breathing exercises, percussion , vibrations, huffing, coughing techniques, postural drainage and mobilization.

The current study is conducted to compare two respiratory techniques for the improvement in post operative pulmonary function; because of incisional pain, patients find the inspiratory exercises difficult to perform, therefore, the study is conducted to assess if easy-to -perform expiratory techniques are similar in effect to the inspiratory techniques and for the said purpose comparison of blow bottle technique and interdigital breathing on post laparotomy patients is made for the improvement of pulmonary function and vitals of these patients.

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Eligibility criteria: Inclusion Criteria:

* Post laparotomy patients
* Age 25 to 45 years.
* Both genders.

Exclusion Criteria:

* Vitally unstable patients
* Complicated laparotomies
* Patients with post-operative complications e.g. delirium

Primary outcomes:
measure: Peak expiratory flow rate (PEFR)
timeFrame: 5 days
measure: Forced vital capacity (FVC)
timeFrame: 5 days
measure: Forced expiratory volume in 1sec (FEV1)
timeFrame: 5 days
measure: FVC/FEV1
timeFrame: 5 days
Secondary outcomes:
measure: Oxygen Saturation (SPO2)
timeFrame: 5 days
measure: Heart rate
timeFrame: 5 days
measure: Chest expansion
timeFrame: 5 days
measure: Respiratory rate
timeFrame: 5 days
Other outcomes:
Locations:
city: Rawalpindi
country: Pakistan
facility: Riphah International University
state: Federal
Study officials:
affiliation: Riphah International University
name: Suman Sheraz, PhD*
role: PRINCIPAL_INVESTIGATOR
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