An interventional study of Structured Perioperative Nursing Education Program in Obesity, Morbid, Bariatric Surgery Candidate and Obesity, sponsored by General Committee of Teaching Hospitals and Institutes, Egypt. Completed at 1 site in Egypt. Open to participants aged 20 Years to 60 Years. Per ClinicalTrials.gov, last updated 2026-10-13.
Sponsored by General Committee of Teaching Hospitals and Institutes, Egypt · Not applicable, Interventional, and Supportive care
This study evaluated whether a structured, nurse-led perioperative education program, supported by an illustrated Arabic booklet, is associated with better short-term outcomes in adults undergoing metabolic and bariatric surgery (MBS). The main outcome was eating behavior at 6 months after surgery. Other outcomes were knowledge about bariatric surgery, weight loss, quality of life, and recorded postoperative symptoms and events. Patients who received routine hospital care were compared with patients who received the structured education program.
Design: single-center, nonrandomized, temporally allocated controlled (quasi-experimental) study conducted at the inpatient departments and outpatient clinics of the Experimental and Clinical Surgery Department, Medical Research Institute, Alexandria University, Egypt. Reported according to the TREND statement.
Allocation: 86 adults undergoing MBS were enrolled sequentially. The control (usual-care) group (n = 43) was recruited first, from May to August 2024. The intervention group (n = 43) was recruited next, from September 2024 to February 2025. Sequential recruitment was used to limit contamination between groups.
Intervention: two one-to-one, nurse-led education sessions of about 45-60 minutes, the first on the day of surgery and the second on the first postoperative day, using interactive discussion, demonstration and an illustrated booklet in simple Arabic. Content covered obesity and MBS, the expected postoperative course, staged diet progression, hydration, chewing and eating speed, early ambulation, breathing and limb exercises, medication and supplement adherence, smoking restriction, wound care, warning signs of complications, and follow-up. Education was reinforced at routine follow-up visits (2 weeks and 1, 3, 6 and 12 months).
Comparator: routine perioperative nursing care and standard discharge instructions.
Assessments: eating behavior (locally adapted 18-item Three-Factor Eating Questionnaire with uncontrolled eating, cognitive restraint and emotional eating domains) at baseline and 1, 3 and 6 months; a 12-item MBS knowledge questionnaire at baseline and 1 month; weight, BMI, percentage total weight loss and percentage excess BMI loss at baseline and 1, 3 and 6 months; quality of life (Moorehead-Ardelt-based instrument) at baseline, 1 and 6 months; obesity-associated medical conditions; recorded postoperative symptoms and events at 1 and 6 months; and an exploratory BAROS-derived score.
Analysis: the 6-month between-group comparison used analysis of covariance adjusted for the baseline value of each outcome, with sensitivity models adjusted for procedure type (and baseline BMI for weight-loss outcomes).
Registration note: this study was registered retrospectively, after completion of enrollment and follow-up.
936 studies on the registry are indexed under Obesity, Morbid; 169 are open to participants now.
This study's enrollment of 86 is above the median of 60 across 599 interventional studies indexed under Obesity, Morbid.
Browse Obesity, Morbid studies →General Committee of Teaching Hospitals and Institutes, Egypt is the lead sponsor of 32 studies on the registry; 11 are open to participants now.
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Exclusion Criteria:
Adults undergoing metabolic and bariatric surgery enrolled from September 2024 to February 2025 who received the structured nurse-led perioperative education program (two one-to-one sessions with an illustrated Arabic booklet, reinforced at routine follow-up) in addition to routine care.
Behavioral: Structured Perioperative Nursing Education Program
Adults undergoing metabolic and bariatric surgery enrolled from May to August 2024 who received routine hospital perioperative nursing care and standard discharge instructions, without the structured education program or booklet.
Nurse-led, one-to-one education delivered in a private room by a trained nurse in two sessions of about 45-60 minutes (day of surgery and first postoperative day), using interactive discussion, demonstration and an illustrated booklet in simple Arabic given to each participant. Topics: obesity and MBS, expected postoperative course, staged diet progression, hydration, chewing and eating speed, early ambulation, breathing and limb exercises, medication and supplement adherence, smoking restriction, wound care, warning signs of complications, and follow-up. Reinforced at routine follow-up visits.
Eating Behavior Score (Adapted 18-item Three-Factor Eating Questionnaire)
Eating behavior measured with a locally adapted Arabic 18-item Three-Factor Eating Questionnaire, each item scored on a 3-point scale. Domain scores: uncontrolled eating (9 items, range 9-27), cognitive restraint (6 items, range 6-18) and emotional eating (3 items, range 3-9); total score range 18-54. Higher scores indicate less favorable eating behavior under the study scoring. The 6-month between-group comparison is adjusted for the baseline value.
Time frame: Baseline and 1, 3 and 6 months after surgery (principal comparison at 6 months)
Bariatric Surgery Knowledge Score
Knowledge of metabolic and bariatric surgery measured with a 12-item investigator-developed structured interview covering surgery, diet, exercise, medication, follow-up and warning symptoms. Each item scored 0-2 (total 0-24); higher scores indicate better knowledge. Also categorized as poor, fair or good knowledge.
Time frame: Baseline and 1 month after surgery
Percentage Total Weight Loss (%TWL)
%TWL = \[(baseline weight - follow-up weight) / baseline weight\] x 100.
Time frame: 1, 3 and 6 months after surgery
Percentage Excess BMI Loss (%EBMIL)
%EBMIL = \[(baseline BMI - follow-up BMI) / (baseline BMI - 25 kg/m²)\] x 100.
Time frame: 1, 3 and 6 months after surgery
Quality of Life (Moorehead-Ardelt-based Questionnaire)
Health-related quality of life measured with an investigator-adapted Moorehead-Ardelt quality-of-life questionnaire covering self-esteem, physical activity, social life, work and sexual activity, and eating behavior; results classified from very poor to very good. Higher scores indicate better quality of life.
Time frame: Baseline, 1 month and 6 months after surgery
Number of Participants With Recorded Postoperative Symptoms or Clinical Events
Patient-reported symptoms and clinical events recorded during routine follow-up (for example vomiting, constipation, dehydration-related symptoms, wound infection, leak, bleeding, pulmonary embolism, reoperation and death), reported individually and as the proportion with at least one recorded symptom or event.
Time frame: 1 and 6 months after surgery
Status of Obesity-associated Medical Conditions
Change in recorded obesity-associated medical conditions (for example type 2 diabetes, hypertension, dyslipidemia and obstructive sleep apnea) among participants with at least one condition at baseline, classified as improved, unchanged or resolved.
Time frame: 1 and 6 months after surgery
BAROS Total Score (Exploratory)
Single total score, in points, of the Bariatric Analysis and Reporting Outcome System (BAROS), reconstructed for each participant. Points for weight loss (%EBMIL: 0 for \<25%, 1 for 25% to \<50%, 2 for 50% to \<75%, 3 for 75% or more), change in obesity-associated medical conditions, and quality of life are added, and points are deducted for postoperative events or reoperation. Maximum 9 points; higher scores indicate a better outcome.
Time frame: 1 and 6 months after surgery
Body Weight
Measured body weight in kilograms (kg).
Time frame: Baseline and 1, 3 and 6 months after surgery
Body Mass Index (BMI)
BMI in kg/m², calculated from measured body weight (kg) divided by the square of measured height (m).
Time frame: Baseline and 1, 3 and 6 months after surgery
Plan to share: No — Participant-level data are not publicly available because unrestricted public sharing was not covered by participant consent or ethics approval. De-identified data may be made available by the corresponding author on reasonable request, subject to institutional and ethical requirements.
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From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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General Committee of Teaching Hospitals and Institutes, Egypt