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The goal of this randomized controlled trial is to compare preoperative intensive weight management to upfront surgery in obese patients undergoing complex abdominal wall reconstruction. The main question is will abdominal wall specific quality of life (using the HerQLes survey) for the group undergoing upfront surgery be non-inferior compared to the group in the weight management program.
This is a prospective, single-center, registry-based, parallel, randomized controlled trial with 1:1 allocation. The study will consist of 2 arms: an intensive 6-month medical weight loss program prior to open retromuscular ventral hernia repair compared to upfront surgery without required weight loss. The medical obesity intervention will be conducted by physicians, nurse practitioners, and dieticians specializing in weight loss medicine. The study operations will be performed at Cleveland Clinic by six hernia surgeons with advanced abdominal wall reconstruction training.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Upfront Surgery | No Intervention | ||
| Preoperative Weight Management Program | Active Comparator |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Preoperative Weight Management Program | Other | The medical obesity intervention is comprised of monthly visits with an obesity medicine (OM) provider +/- a registered dietitian (in person or virtual). Lifestyle modifications (nutrition, physical activity, stress, sleep), appetite control, and medication side effects will be addressed in all visits. At initial visit, patients will evaluated in person by an OM provider +/- registered dietitian. An individualized intense lifestyle intervention will be implemented with the addition of an anti-obesity medication (phentermine, naltrexone/bupropion, phentermine/topiramate, liraglutide, semaglutide, etc). Medication use will be based on disease risk, patient preference, severity of obesity, contraindications, potential drug interactions and insurance coverage. A diet recommendation will be tailored to the patient's medical and food allergy history. Weight and vital signs will be monitored at each visit. Participants will have a total of 5 follow-up monthly encounters, every 30 +/- 7 days. |
| Measure | Description | Time Frame |
|---|---|---|
| Abdominal core health-specific quality of life at 1 year | This will be measured at 1 year using the HerQLes survey which is scored from 0-100 with higher scores indicating better quality of life. | 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| Hernia recurrence at 1 year | This will be based on based on the current consensus definition of hernia recurrence which considers CT scan reviewed by 3 blinded assessors, surgeon clinical exam, and patient-reported bulge. | 1 year |
| Wound morbidity at 30 days |
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Inclusion criteria
Exclusion criteria
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Benjamin T Miller, MD | Contact | 216 406-8573 | millerb35@ccf.org | |
| Erika Schmidt, MD | Contact | 2163723107 | schmide7@ccf.org |
| Name | Affiliation | Role |
|---|---|---|
| Benjamin T Miller, MD | The Cleveland Clinic | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Northwestern University | Recruiting | Chicago | Illinois | 60611 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 40434485 | Derived | Remulla D, Miles KS, Carvalho A, Maskal SM, Butsch WS, Beffa LR, Petro CC, Krpata DM, Prabhu AS, Rosen MJ, Miller BT. Preoperative weight loss for open abdominal wall reconstruction: study protocol for a randomized controlled trial. Hernia. 2025 May 28;29(1):187. doi: 10.1007/s10029-025-03375-y. |
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| ID | Term |
|---|---|
| D046449 | Hernia, Abdominal |
| ID | Term |
|---|---|
| D006547 | Hernia |
| D020763 | Pathological Conditions, Anatomical |
| D013568 | Pathological Conditions, Signs and Symptoms |
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The assessor of the patient reported outcomes will be blinded. Hernia recurrence will be assessed by blinded review of CT scans by 3 surgeons.
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This includes including surgical site infection, surgical site occurrence, and surgical site occurrence requiring procedural intervention. |
| 30 days |
| Wound morbidity at 1 year | This includes including surgical site infection, surgical site occurrence, and surgical site occurrence requiring procedural intervention. | 1 year |
| Body composition changes in weight | This includes comparative mean changes in body weight (kg) between groups from time of enrollment, day of surgery, 30-day follow-up, and 1-year follow-up. | 1 year |
| Body composition changes in BMI | This includes comparative mean changes in BMI (kg/m2) between groups from time of enrollment, day of surgery, 30-day follow-up, and 1-year follow-up. | 1 year |
| Patient abdominal wall specific- quality of life with preoperative weight management program | This includes difference in abdominal wall-specific quality of life using the HerQLes score (0-100 with higher scores indicating better abdominal wall-specific quality of life) in the weight loss arm before and after weight loss intervention. | 1 year |
| Patient-reported pain changes with preoperative weight management program | This includes difference in pain using the PROMIS 3a Pain Intensity Score (30.7-71.8 with higher scores indicating more pain) in the weight loss arm before and after weight loss intervention. | 1 year |
| Patient-reported quality of life changes with preoperative weight management program | This includes difference in overall quality of life using the EQ5D-5L with VAS (scored with an index value and a 0-100 score with higher scores indicating better quality of life) in the weight loss arm before and after weight loss intervention. | 1 year |
| Abdominal wall -specific quality of life short-term | This includes difference in abdominal wall -specific quality of life using the HerQLes score between groups at baseline and 30 days postoperatively. | 30 days |
| Pain scores | This includes the difference in pain scores using the PROMIS 3a Pain Intensity Score (scored from 30.7-71.8) at baseline, 30-day, and 1 year. | 1 year |
| Cost effective analysis | Perform a formal cost effectiveness analysis. | 1 year |
| Body weight percentage loss | Proportion of patients achieving a reduction in 5% and 10% body weight at end of 6-month medical weight loss intervention, day of surgery, and 1-year follow-up | 1 year |
| Weight management program adherence | Proportion of successful completion of the program (defined as attending at least 4 visits) is associated with lower wound complications, hernia recurrence, or higher HerQLes score at one year | 1 year |
| Impact of 10% body weight loss on wound complications | For patients with weight loss of 10% body weight prior to surgery compared to no weight loss prior to surgery - compare proportion of wound complications | 1 year |
| Impact of 10% body weight loss on hernia recurrence | For patients with weight loss of 10% body weight prior to surgery compared to no weight loss prior to surgery - compare hernia recurrence at one year | 1 year |
| Impact of 10% body weight loss | For patients with weight loss of 10% body weight prior to surgery compared to no weight loss prior to surgery - compare HerQLes score (0-100 with higher scores indicating better abdominal wall specific- quality of life) at one year | 1 year |
| Urgent repair | Number of patients who require urgent hernia repair in either arm | 1 year |
| Bariatric surgery prior to hernia repair and wounds | Number of patients who opt for bariatric surgery and, for those patients that undergo hernia repair, to evaluate rates of wound complications at one year | 1 year |
| Bariatric surgery prior to hernia repair and hernia recurrence | Number of patients who opt for bariatric surgery and, for those patients that undergo hernia repair, to evaluate rates of hernia recurrence at one year | 1 year |
| Bariatric surgery prior to hernia repair and abdominal wall specific quality of life | Number of patients who opt for bariatric surgery and, for those patients that undergo hernia repair and HerQLes scores (0-100 with higher scores indicating better abdominal wall specific- quality of life) at one year | 1 year |
| Cleveland Clinic Main Campus | Recruiting | Cleveland | Ohio | 44195 | United States |
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