Bariatric Surgery Research by Dr. Mohamed Hany

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Bariatric Surgery Research by Dr. Mohamed Hany

Dr. Hany has spent his career gaining and sharing expertise in Bariatric Surgery as a consultant. Dr. Hany was born in Alexandria, Egypt in 1976.

He then graduated from the Faculty of Medicine, Alexandria University in 2000, and went to earn his Masters degree in General Surgery in 2005. A Ph.D in Bariatric and Laparoscopic Surgery in 2013 further enriched his knowledge in the specialty. Dr. Hany has spent his career gaining and sharing expertise in Bariatric Surgery as a consultant in multiple Hospitals across Egypt, including Madina Women’s Hospital and as an Associate Professor of General Surgery at the Medical Research Institute, Alexandria University.

17/09/2025

At year 1 and 2: no significant difference between groups.
Year 1: %TWL 34.9% (nrRYGB) vs. 35.1% (rRYGB); %EWL 79.5% vs. 80.7%.
Year 2: %TWL 40.5% vs. 40.7%; %EWL 91.9% vs. 93.8%.
At year 3, rRYGB showed superiority:
%TWL 40.3% vs. 39.0%.
%EWL 92.9% vs. 89.1%.
RWG: 0.8 kg vs. 2.1 kg.
RWG % of maximum WL: 1.7% vs. 4.4%.

DOI: http://bit.ly/3JlDAsm
https://hri.drmhany.com/

15/09/2025

Surgical team used the MiniMizer Gastric Ring® (Bariatric Solutions International, Switzerland) in rRYGB.
Operative time: nrRYGB 88.3 ± 3.1 min vs. rRYGB 93.0 ± 3.0 min.
Complications: early 5.8% vs. 6.7%, late 24.2% vs. 25.8%.
One case of ring erosion (0.8%) in rRYGB, re-operated successfully.
Readmissions similar between groups (8.3% vs. 9.2%).

DOI: http://bit.ly/3JlDAsm
https://hri.drmhany.com/

13/09/2025

Each participant was evaluated by a multidisciplinary team (MDT) including a metabolic bariatric surgeon, dietician, endocrinologist, and psychiatrist.
Routine and nutritional laboratory tests including gut hormones.
Abdominal ultrasound to exclude gallstones.
Upper GI endoscopy (UGE) to assess GERD (Los Angeles classification) and hiatal hernia (HH).
HH was diagnosed when axial length >2 cm above diaphragmatic hiatus with Hill grade IV. Large HH defined as ≥5 cm axial length.
Hormonal measurements (ghrelin, leptin) were collected pre-op, and at 1- and 3-year follow-up using ELISA (EIA-2935).

DOI: http://bit.ly/3JlDAsm
https://hri.drmhany.com/

13/09/2025

What an unforgettable experience at the IFSO 2025 World Congress in Santiago! I had the privilege of co-directing the pre-congress course on obesity medication for surgeons with the brilliant Carel Le Roux, alongside the distinguished Yudith Preiss and Tarissa Petry. It was an intense and insightful day filled with rich discussions—from understanding how obesity medications can complement metabolic and bariatric surgery, to addressing strategies that minimize side effects and enhance long-term outcomes. The shared expertise in the room left me deeply inspired and full of new learnings.

I also had the pleasure of meeting outstanding leaders such as Prof. Lee Kaplan and Prof. Gerhard Prager. Every exchange, whether through collaborations or innovative presentations, highlighted the immense value of global cooperation in advancing patient care.

Truly grateful for the chance to learn, grow, and connect with such an extraordinary community! 🙏💪

10/09/2025

Patients with severe obesity underwent primary laparoscopic rRYGB or nrRYGB between January 2019 and March 2020. Before enrollment, all patients were counseled regarding benefits and risks of both procedures. Costs of ring placement were covered by the institute. Patients were blinded until the end of the 3-year follow-up. All participants signed informed consent before inclusion.

DOI: http://bit.ly/3JlDAsm
https://hri.drmhany.com/

07/09/2025

Metabolic bariatric surgery (MBS) is highly effective in treating morbid obesity and related comorbidities with strong evidence of efficacy and safety.
Roux-en-Y gastric bypass (RYGB) has long been one of the cornerstones of MBS:
In 2013, it comprised 45% of all MBS worldwide.
In 2014, 39.6% of MBS.
In 2023, 29.5% of MBS procedures.
Notably, RYGB remains the most common revisional procedure, representing 48.2% of revisional MBS in 2023.

DOI: http://bit.ly/3JlDAsm
https://hri.drmhany.com/

04/09/2025

A single-blinded, randomized controlled trial was conducted in two specialized bariatric centers, including 240 patients (120 rRYGB and 120 nrRYGB) between January 2019 and March 2020.
Primary endpoint: Weight loss (WL) measured by %EWL and %TWL.
Secondary endpoints: Gastric pouch and gastrojejunostomy volumetry, complications, quality of life (QoL), food tolerance (FT), associated medical problems, and recurrent weight gain (RWG >20% of TWL).

DOI: http://bit.ly/3JlDAsm
https://hri.drmhany.com/

02/09/2025

Three-Year Results of Comparison between Ring-Versus Non-ring-Augmented Roux-en-Y Gastric Bypass: A Randomized Control Trial
Suboptimal clinical response (SCR) after laparoscopic Roux-en-Y gastric bypass (RYGB) is often attributed to gastric pouch and gastrojejunostomy dilatation. Ring placement, which includes a ring to prevent pouch dilatation, may help reduce SCR. This randomized controlled trial compared 3-year outcomes of ring-augmented RYGB (rRYGB) versus non-ring-augmented RYGB (nrRYGB).

DOI: http://bit.ly/3JlDAsm
https://hri.drmhany.com/

31/08/2025

The study concludes that clinical symptoms are a poor surrogate for endoscopic and histopathological abnormalities post-OAGB. Their absence is unreliable for ruling out disease, despite their high specificity when present.
Clinical Implications:
Reliance on symptoms alone for postoperative surveillance is inadequate and may miss significant pathology.
Routine endoscopic evaluation should be considered a standard component of post-OAGB follow-up protocols.

Further research is warranted to assess long-term diagnostic accuracy and refine these essential surveillance strategies.

DOI: https://pubmed.ncbi.nlm.nih.gov/40488857/
https://hri.drmhany.com/

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