Dr. Ariel Ortiz — AO monogramDr. Ariel Ortiz®

Publications & Presentations

Peer-reviewed publications, books, and international congress programmes.

Selected indexed work — filter by type or year, or search across titles and citations.

Dr. Ariel Ortiz alongside the PubMed® interface — scientific research and trusted medical knowledge.

Outcomes at scale

OCC–UCSD retrospective — 19,801 procedures

April 2000 – October 2021. Presented at ASMBS Annual Meeting, 2022.

19,801

Procedures reviewed

1.2%

30-day morbidity rate

0

Mortalities

0%Morbidity 1.2%100%

Featured study

19,801 patients · 30-day morbidity 1.2% · zero mortalities

Joint OCC–UCSD outcomes study on the safety of high-volume bariatric surgery in a Center of Excellence, presented at the ASMBS 2022 Annual Meeting. The largest published single-center dataset supporting the safety of cross-border bariatric care.

9 results

Clinical outcomes

  • Peer-reviewed2019

    Safety and efficacy of bariatric surgery in Mexico: A detailed analysis of 500 surgeries performed at a high-volume center

    Guilbert L, Joo P, Ortiz C, et al. Revista de Gastroenterología de México, 2019.

    PMID: 29933896 · DOI: 10.1016/j.rgmx.2018.02.008

    View source

Surgical technique & innovation

  • Peer-reviewed2015

    A New Bariatric Procedure: The Stomach Sparing Gastric Sleeve™

    Rodríguez G, Martínez A, et al. Surgical Technology International, 2015.

    PMID: 26680388

    View source

Global bariatric care & medical tourism

  • Peer-reviewed2019

    Current Practice of Global Bariatric Tourism — Survey-Based Study

    Kowalewski PK, Rogula TG, Ortiz Lagardere A, et al. Obesity Surgery, 2019.

    PMID: 31240532 · DOI: 10.1007/s11695-019-04001-4

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Surgical education & networks

  • Peer-reviewed2013

    The International Bariatric Club — a worldwide web educational network for bariatric professionals

    Khwaja HA, Nedelcu M, Galvao Neto M, Ortiz Lagardere A, et al. Obesity Surgery, 2013.

    PMID: 24122697 · DOI: 10.1007/s11695-013-1099-4

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Books & patient guides

  • Book2005

    Lap-Band for Life: The Complete Patient Guide to Success with the LAP-BAND

    Ortiz Lagardere A. LM Publishers, 2005. ISBN 187913666X.

IBC–Oxford congress programmes

  • Programme2026

    IBC–Oxford University World Congress 2025 Programme

    British Journal of Surgery, Vol. 113, Supplement_1, January 2026.

    DOI: 10.1093/bjs/znaf288.fm001

    View source
  • Programme2025

    IBC–Oxford University World Congress 2024 Programme

    British Journal of Surgery, Vol. 112, Supplement_5, February 2025.

    DOI: 10.1093/bjs/znaf036.fm001

    View source
  • Programme2023

    IBC–Oxford University World Congress 2023 Programme

    British Journal of Surgery, Vol. 110, Supplement_9, December 2023.

    DOI: 10.1093/bjs/znad382.fm

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Conference presentations

  • Conference2022

    Bariatric Tourism is Safe and Effective When Performed in a High-Volume Center (19,801 Patients) Following ASMBS Guidelines

    Ortiz Lagardere A, Li J, Martinez Gamboa A, Broderick R, Huang E, Serra JL, Chavez L, Valdez A, Horgan S. ASMBS Annual Meeting 2022, Dallas, TX.

    30-day morbidity 1.2%; zero mortalities across 19,801 procedures. Joint OCC–UCSD study. DOI: pending.

A citation-complete library — covering earlier work on adjustable gastric banding, achalasia, hernia training, sleeve technique, and revisional surgery — is in development. Last updated: June 2026.