A study, a published case report and a before-and-after photograph answer different questions. This library keeps those sources separate so you can judge what each one tells you.
Research explained
| Topic | What the evidence guide examines |
|---|---|
| TORe research | Controlled and longer-term evidence, the patients studied and the limits of applying averages to an individual. |
| ESG research | Randomized and follow-up studies, weight-loss measures and the difference between ESG and surgical sleeve evidence. |
| Sleeve-to-bypass research | Reflux and weight outcomes after conversion, follow-up completeness and reported adverse events. |
A publication coauthored by Dr. Pérez
Dr. Pérez coauthored a 2023 surgical case report with a recorded Renew Bariatrics affiliation. It is listed with its original source on the publications page. A case report describes an individual clinical event; it is not a registry of the surgeon’s results.
Individual patient experiences
The patient-results gallery reproduces selected Renew before-and-after material with the procedure and details available from the source. The review collection contains excerpts that name Dr. Pérez. Neither collection is a complete or randomly selected sample of patients.
A gastric sleeve result does not demonstrate the expected result of TORe, ESG or a sleeve conversion. Where there is no verified procedure-specific patient story, we use published clinical evidence and say whose results are being described.
Five questions to ask of any result
- Were these patients similar to me, including their previous operations?
- Was there a comparison group, and how was treatment assigned?
- What did the researchers measure: weight, symptoms, medication use, complications or quality of life?
- How long were patients followed, and how many had complete follow-up?
- Does the report describe this practice or another center?
Start with how to read weight-loss percentages if different numbers appear to conflict. Before using any figure to make a treatment decision, ask the clinical team how well the study applies to your circumstances.