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Effect of Transcutaneous Electrical Nerve Stimulation on PODD in Bariatric Surgery Patients

Effect of Transcutaneous Electrical Nerve Stimulation on Postoperative Diaphragmatic Dysfunction in Morbidly Obese Patients Undergoing Bariatric Surgery: A Randomized Controlled Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07569705
Enrollment
70
Registered
2026-05-06
Start date
2026-05-17
Completion date
2026-08-30
Last updated
2026-05-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bariatric Surgery, Bariatric Surgery Candidate

Keywords

Bariatric, Diaphragmatic dysfunction

Brief summary

Researchers aim to evaluate impact of transcutaneous electric nerve stimulator on the incidence of postoperative diaphragmatic dysfunction in patients living with obesity undergoing bariatric surgery

Detailed description

Bariatric surgery is associated with several postoperative consequences, including challenging pain control, respiratory complications, and diaphragmatic dysfunction. Postoperative diaphragmatic dysfunction is defined as a diaphragmatic excursion of less than 10 mm. There is substantial evidence that diaphragmatic ultrasound provides a reliable and accurate assessment of diaphragmatic function in both intensive care unit and perioperative settings. The present randomized controlled trial aims to evaluate the influence of transcutaneous electrical nerve stimulation on postoperative diaphragmatic dysfunction in morbidly obese patients undergoing bariatric surgery.

Interventions

DEVICETranscutaneous nerve stimulator

The EM49 will be set to a TENS program with a frequency of 80-100 Hz and a pulse width of 200 μs

DEVICESham TENS

Electrodes will be placed identically, but no current will be delivered (sham TENS)

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Intervention model description

Application of transcutaneous electric nerve stimulator

Eligibility

Sex/Gender
ALL
Age
20 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Body mass index \> 40 kg/m2 * ASA II

Exclusion criteria

* Limited diaphragmatic ultrasound views * Patient with pulmonary diseases (COPD, bronchial asthma, and interstitial fibrosis) * Patient refusal

Design outcomes

Primary

MeasureTime frameDescription
Incidence of postoperative diaphragmatic dysfunction2 hours after surgeryDiaphragmatic excursion \< 10 mm 2 hours after surgery

Secondary

MeasureTime frameDescription
Forced vital capacity (liters)Before and at 2 and 24 hours postoperativelyis the maximum volume of air that can forcibly exhaled after taking maximum breath
Numeric rating scaleWithin 24 hours after surgeryTo quantify pain from 0 to 10 (with 10 indicates worst pain)
Nalbuphine consumption24 hours after surgeryTotal postoperative nalbuphine consumption
Forced expiratory volume in one second (Liter)Before and at 2 and 24 hoursMaximum volume of air can be exhaled in the first second after maximum inspiration
Peak expiratory flow rate (Liter/ second)Baseline, 2, and 24 hours after surgeryMaximum flow rate during forced expiration after maximum inhalation

Countries

Egypt

Contacts

CONTACTMina Adolf Helmy, MD
minaadolf1988@cu.edu.eg01275716942

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 21, 2026