Publications by authors named "John Guardiola"

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Success and safety of conventional endoscopic resection techniques for previously partially resected colorectal polyps at a tertiary referral center.
John J Guardiola, Rachel E Lahr, Jeremiah Shultz, Azizullah Beran, Krishna C Vemulapalli

Gastrointest Endosc· January 2026

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"Resect and pool": Surveillance interval agreement, safety, and savings from placing all colorectal polyps considered zero risk of cancer in one container for pathologic assessment.
Easton M Stark, Rachel E Lahr, John J Guardiola, Joseph C Anderson, Daniel von Renteln

Endoscopy· December 2025

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Risk of Post-polypectomy Bleeding After Colorectal Endoscopic Mucosal Resection in Patients With Cirrhosis: A Propensity-Matched Analysis of the US Collaborative Network.
Azizullah Beran, Khaled Elfert, Feenalie N Patel, Mouhand Mohamed, Daryl Ramai, John J Guardiola

Am J Gastroenterol· November 2025

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The Threat of Micro-/Nanoplastics to Male Fertility: A Review of the Data and the Importance of Future Research.
Shawn Aji Alex, Nevin K George, John Guardiola, Deborah Clegg

Int J Mol Sci· November 2025

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Advanced chronic kidney disease increases the odds of ERCP adverse events but not post-ERCP pancreatitis: a propensity-matched analysis of the US Collaborative Network.
Hussein Baydoun, Azizullah Beran, Daryl Ramai, Vikram R Rajagopalan, Aladdin Said Dahbour, John J Guardiola

Surg Endosc· October 2025

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Risk of Post-polypectomy Bleeding After Colorectal Endoscopic Mucosal Resection in Patients with Chronic Kidney Disease: A Propensity-Matched Analysis of the US Collaborative Network.
Azizullah Beran, Khaled Elfert, Feenalie N Patel, Mouhand Mohamed, Daryl Ramai, John J Guardiola

Dig Dis Sci· September 2025

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Artificial Intelligence-Assisted Colonoscopy With or Without Mucosal Exposure Device for Detection of Colorectal Adenomas: A Meta-Analysis.
Azizullah Beran, Tarek Nayfeh, Daryl Ramai, Almaza Albakri, Nasir Saleem, John J Guardiola

Endosc Int Open· September 2025

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Detection of large flat colorectal lesions by artificial intelligence: a persistent weakness and blind spot.
Douglas K Rex, John J Guardiola, Daniel von Renteln, Yuichi Mori, Prateek Sharma

Gut· May 2025

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Comparison Between Adalimumab and Infliximab in Perianal Crohn's Disease: A Systematic Review and Meta-Analysis.
Tarek Aboursheid, Azizullah Beran, Mohamad Hijazi, Mhd Kutaiba Albuni, Bisher Sawaf, John J Guardiola

Gastro Hep Adv· May 2025

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Pimping in the clinical learning environment: representation of women in surgery.
Efe Chantal Ghanney Simons, John J Guardiola, Indira Bhavsar-Burke

Nat Rev Urol· April 2025

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Frequency of errors in colorectal lesion description and management prior to referral to a tertiary center.
Yervant Ichkhanian, Rachel E Lahr, John J Guardiola, Douglas K Rex

Gastrointest Endosc· April 2025

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Response to Smith.
Azizullah Beran, John J Guardiola

Am J Gastroenterol· April 2025

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Cold Snare Resection in the Colorectum: When to Choose it, When to Avoid it, and How to Do it.
John J Guardiola, Joseph C Anderson, Tonya Kaltenbach, Heiko Pohl, Douglas K Rex

Clin Gastroenterol Hepatol· March 2025

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Effect of Glucagon-Like Peptide-1 Receptor Agonists on Bowel Preparation for Colonoscopy: A Systematic Review and Meta-Analysis.
Azizullah Beran, Tarek Nayfeh, Aya Akhras, Daryl Ramai, Mouhand Mohamed, John J Guardiola

Am J Gastroenterol· February 2025

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Risk Factors for Inadequate Bowel Preparation in Colonoscopy: A Comprehensive Systematic Review and Meta-Analysis.
Azizullah Beran, Tarek Aboursheid, Adel Hajj Ali, Hashem Albunni, Mouhand F Mohamed, John J Guardiola

Am J Gastroenterol· December 2024

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Safety of first surveillance colonoscopy at 12 months after piecemeal EMR of large nonpedunculated colorectal lesions.
Michael C Bobay, Rachel E Lahr, Jeremiah Shultz, Krishna C Vemulapalli, John J Guardiola

Gastrointest Endosc· November 2024

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Glucagon for Esophageal Foreign Body Impaction: A Systematic Review and Meta-analysis of Randomized Controlled Trials.
AbdiGhani Ismail, Azizullah Beran, Saad Saadat, Diego Izquierdo Veraza, John J Guardiola

Am J Ther· September 2024

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Will submucosal injection for colonic polyps get left out in the cold?
John J Guardiola

Endoscopy· July 2024

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Best Practices for Educating in Gastroenterology Fellowship: A Primer on Instruction Vs Coaching.
Sasha Kapil, John J Guardiola, Indira Bhavsar-Burke

Clin Gastroenterol Hepatol· June 2024

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A new through-the-scope clip with anchor prongs is safe and successful for a variety of endoscopic uses.
John J Guardiola, Douglas K Rex, Christopher C Thompson, Jeffrey Mosko, Marvin Ryou

Endosc Int Open· June 2024

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Audit of hemostatic clip use after colorectal polyp resection in an academic endoscopy unit.
Easton M Stark, Rachel E Lahr, Jeremiah Shultz, Krishna C Vemulapalli, John J Guardiola

Endosc Int Open· April 2024

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Nutritional Assessment in Patients after Gastric Electrical Stimulation (GES).
Tanureet Kochar, Wenjing Cai, John J Guardiola, Prateek Mathur, Hamza Hassan

J Clin Gastroenterol· February 2024

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Characterization of endoscopic features and histology of a distinct mucosal transition zone on the ileocecal valve (with video).
Douglas K Rex, Rachel E Lahr, John J Guardiola, John M Dewitt, Dongwei Zhang

Gastrointest Endosc· September 2023

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Use of a Cirrhosis Admission Order Set Improves Adherence to Quality Metrics and May Decrease Hospital Length of Stay.
Indira Bhavsar-Burke, John J Guardiola, Nour Hamade, Steven Gerke, Sean M Burke

Am J Gastroenterol· January 2023

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Unexplained liver test elevations after SARS-CoV-2 vaccination.
John Guardiola, Craig Lammert, Evgenia Teal, Naga Chalasani

J Hepatol· July 2022

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