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Thosani, Nirav C

0000-0002-4607-6241

Mayo Clinic

The University of Texas Health Science Center at Houston

Citations 7

Correction: American Society for Gastrointestinal Endoscopy–European Society of Gastrointestinal Endoscopy guideline on primary endoscopic bariatric and metabolic therapies for adults with obesity
Jirapinyo, Pichamol , Hadefi, Alia , Huberty, Vincent, Sullivan, Shelby , Thompson, Christopher C. , Patai, Árpád V. , Pannala, Rahul , Goelder, Stefan, Kushnir, Vladimir , Apovian, Caroline M., Chapman, Christopher G., Davidson, Paul , Kumbhari, Vivek , Esker, Janelle, Hucl, Tomáš , Schulman, Allison R. , Zelber‐Sagi, Shira , Bain, Paul , Huberty, Vincent, Barthet, Marc , Boškoski, Ivo , Donatelli, Gianfranco , Hayee, Bu , Pryor, Aurora Dawn , Maselli, Roberta , Pattou, François , Durieux, Valérie , Τriantafyllou, Κonstantinos , Thosani, Nirav C

Endoscopy | July 28, 2025 | Volume: 57 | Issue: 09 | Pages: C12-C12

10.1055/a-2651-9666 Get It

S647 Balloon Cryotherapy is Highly Effective in Patients With Poor Response to Radiofrequency Ablation Therapy for Dysplastic Barrett’s Esophagus: Preliminary Results from the NO FEAR-BE Study
Shaheen, Nicholas J. , Iyer, Prasad G. , Khara, Harshit S. , Elias, Puja S., Chak, Amitabh , Shafa, Shervin , Peter, Shajan, Smith, Michael S. , Moist, Susan E., Walker, Kacie B, Kim, Julia , Jones, Carson, Canto, Marcia Irene , Cotton, Cary C. , Abrams, Julian A , Thosani, Nirav C , Cortright, Lindsay M. , Walker, Kacie B., Jones, Carson, Trindade, Arvind J.

American Journal of Gastroenterology | October 24, 2024 | Volume: 119 | Issue: 10S | Pages: S448-S448

10.14309/01.ajg.0001031956.24377.ea Get It

American Foregut Society Cooperative White Paper on Mechanisms of Pathologic Reflux and Antireflux Surgery
Nguyen, Ninh T. , Dayyeh, Barham Abu, Chang, Kenneth J. , Lipham, John C. , Bell, Reginald , Dunst, Christy M. , Mittal, Ravinder K., Oelschlager, Brant K. , Hinojosa, Marcelo W. , Brunaldi, Vitor , Buckley, Francis Paul, Thosani, Nirav C , Yadlapati, Rena , Kahrilas, Peter J.

Foregut: The Journal of the American Foregut Society | September 6, 2024 | Volume: 5 | Issue: 1 | Pages: 16-26

10.1177/26345161241276454 Get It

Background: Within the spectrum of gastroesophageal reflux disease (GERD), pathologic reflux applies to the subset of patients with either erosive esophagitis or abnormal esophageal acid exposure on pH-metry, consequences of a dysfunctional antireflux barrier (ARB). Methods: The American Foregut Society (AFS) tasked a 13-member working group of expert foregut surgeons and esophagologists (The ARB Cooperative) to develop a white paper on ARB function, dysfunction, and mechanisms of action of antireflux surgery through discussion of relevant literature summarized herein. Results: The ARB Cooperative concluded that pathologic reflux is a consequence of the interplay between progressive anatomical distortion of the ARB and physiology. Factors contributing to ARB dysfunction include (1) separation of crural diaphragm from the lower esophageal sphincter with widening of the hiatus and diminished crural diaphragm sphincteric function; (2) loss of the intra-abdominal lower esophageal sphincter segment with complete disabling of the flap valve component of the ARB; (3) axial hiatal hernia leading to reflux during swallow-induced lower esophageal sphincter (LES) relaxation, LES hypotension, inspiration related reflux, a lowered threshold for eliciting transient LES relaxations, and increased compliance of the gastroesophageal junction leading to greater diameter of sphincter opening during transient LES relaxations. With regard to antireflux surgery, the objectives include: (1) reduction of hiatal hernia and restoration of the intra-abdominal esophageal segment; (2) repair of the dilated hiatus; (3) restoring flap valve function by modifying gastroesophageal anatomy; and (4) restricting gastroesophageal junction opening during periods of relaxation. Conclusions: This ARB Cooperative white paper supports the concept of there being 3 major inter-related mechanisms promoting ARB competence: the LES as an intrinsic sphincter, the crural diaphragm as an extrinsic sphincter, and the gastroesophageal valve, a mechanical 1-way valve. Pathological reflux occurs with progressive anatomical disruption of the ARB which in turn leads to physiological dysfunction, the severity of which parallels the extent of anatomical disruption. The corollary of this is that the primary mechanism of antireflux surgery is to restore the ARB by eliminating or compensating for its anatomical disruption. It is the hope of the cooperative that understanding the proposed framework will help clinicians and researchers in improving antireflux procedures.
American Society for Gastrointestinal Endoscopy–European Society of Gastrointestinal Endoscopy guideline on primary endoscopic bariatric and metabolic therapies for adults with obesity
Jirapinyo, Pichamol , Hadefi, Alia , Sullivan, Shelby , Thompson, Christopher C. , Patai, Árpád V. , Pannala, Rahul , Goelder, Stefan, Kushnir, Vladimir , Apovian, Caroline M., Chapman, Christopher G., Davidson, Paul , Kumbhari, Vivek , Esker, Janelle, Hucl, Tomáš , Schulman, Allison R. , Zelber‐Sagi, Shira , Bain, Paul , Huberty, Vincent , Barthet, Marc , Boškoski, Ivo , Donatelli, Gianfranco , Hayee, Bu , Pryor, Aurora Dawn , Maselli, Roberta , Pattou, François , Durieux, Valérie , Τriantafyllou, Κonstantinos , Thosani, Nirav C

Endoscopy | April 19, 2024 | Volume: 56 | Issue: 06 | Pages: 437-456

10.1055/a-2292-2494 Get It

AbstractThis joint ASGE-ESGE guideline provides an evidence-based summary and recommendations regarding the role of endoscopic bariatric and metabolic therapies (EBMTs) in the management of obesity. The document was developed using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) framework. It evaluates the efficacy and safety of EBMT devices and procedures that currently have CE mark or FDA-clearance/approval, or that had been approved within five years of document development. The guideline suggests the use of EBMTs plus lifestyle modification in patients with a BMI of ≥30 kg/m2, or with a BMI of 27.0–29.9 kg/m2 with at least 1 obesity-related comorbidity. Furthermore, it suggests the utilization of intragastric balloons and devices for endoscopic gastric remodeling (EGR) in conjunction with lifestyle modification for this patient population.
Lifestyle Medicine for the Prevention and Treatment of Pancreatitis and Pancreatic Cancer
Subramanian, Sruthi Kapliyil, Brahmbhatt, Bhaumik , Bailey, Jennifer M. , Mutha, Pritesh , Bailey-Lundberg, Jennifer M , Thosani, Nirav C

Diagnostics | March 14, 2024 | Volume: 14 | Issue: 6 | Pages: 614

10.3390/diagnostics14060614 Get It

The incidence of pancreatitis and pancreatic cancer is on the upswing in the USA. These conditions often lead to higher healthcare costs due to the complex nature of diagnosis and the need for specialized medical interventions, surgical procedures, and prolonged medical management. The economic ramification encompasses direct healthcare expenses and indirect costs related to productivity losses, disability, and potential long-term care requirements. Increasing evidence underscores the importance of a healthy lifestyle in preventing and managing these conditions. Lifestyle medicine employs evidence-based interventions to promote health through six key pillars: embracing a whole-food, plant-predominant dietary pattern; regular physical activity; ensuring restorative sleep; managing stress effectively; removing harmful substances; and fostering positive social connections. This review provides a comprehensive overview of lifestyle interventions for managing and preventing the development of pancreatitis and pancreatic cancer.
Hiatal hernia repair with transoral incisionless fundoplication versus Nissen fundoplication for gastroesophageal reflux disease: A retrospective study
Jaruvongvanich, Veeravich , Reisenauer, Janani , Janu, Peter , Mavrelis, Peter G., Ihde, Glenn , Singh, Sneha , Nguyen, Ninh T. , Wilson, Erik B., Chang, Kenneth J. , Jaruvongvanich, Veeravich K, Matar, Reem , Murray, Michael J. , Kolb, Jennifer M. , Thosani, Nirav C , Zarnegar, Rasa , Canto, Marcia Irene , Dayyeh, Barham K. Abu

Endoscopy International Open | January 4, 2023 | Volume: 11 | Issue: 01 | Pages: E11-E18

10.1055/a-1972-9190 Get It

Abstract Background and study aims Concomitant hiatal hernia (HH) repair with transoral incisionless fundoplication (TIF) is a therapeutic option for patients with HH > 2 cm and gastroesophageal reflux disease (GERD). Data comparing this approach with laparoscopic Nissen fundoplication (LNF) are lacking. We performed an exploratory analysis to compare these two approaches' adverse events (AEs) and clinical outcomes. Patients and methods This was a multicenter retrospective cohort study of HH repair followed by LNF versus HH repair followed by TIF in patients with GERD and moderate HH (2–5 cm). AEs were assessed using the Clavien-Dindo classification. Symptoms (heartburn/regurgitation, bloating, and dysphagia) were compared at 6 and 12 months. Results A total of 125 patients with HH repair with TIF and 70 with HH repair with LNF were compared. There was no difference in rates of discontinuing or decreasing proton pump inhibitor use, dysphagia, esophagitis, disrupted wrap, and HH recurrence between the two groups (P > 0.05). The length of hospital stay (1 day vs. 2 days), 30-day readmission rate (0 vs. 4.3 %), early AE rate (0 vs. 18.6 %), and early serious AE rate (0 vs. 4.3 %) favored TIF (all P < 0.05). The rate of new or worse than baseline bloating was lower in the TIF group at 6 months (13.8 % vs. 30.0 %, P = 0.009). Conclusions Concomitant HH repair with TIF is feasible and associated with lower early and serious AEs compared to LNF. Further comparative efficacy studies are warranted.
The American Foregut Society White Paper on the Endoscopic Classification of Esophagogastric Junction Integrity
Nguyen, Ninh T. , Chang, Kenneth J. , Lipham, John C. , Dayyeh, Barham Abu, Wilson, Erik B., Muthusamy, V. Raman, Bell, Reginald , Janu, Peter , Runge, Ava , Thosani, Nirav C , Canto, Marcia Irene , Muthusamy, V. Raman , Clarke, John O. , Swanström, Lee L. , Kahrilas, Peter J.

Foregut: The Journal of the American Foregut Society | September 29, 2022 | Volume: 2 | Issue: 4 | Pages: 339-348

10.1177/26345161221126961 Get It

Background: The American Foregut Society (AFS) is dedicated to advancing patient care and digestive health within the realm of foregut disease. One of the most common and debilitating esophageal conditions is gastroesophageal reflux disease (GERD). The Hill grade is an endoscopic classification of the esophagogastric junction (EGJ) based on the appearance of the gastroesophageal flap valve from a retroflexed view of the hiatus. This endoscopic classification provides insight into the anatomic disruption of the EGJ which has been shown to correlate with GERD. However, clinical utilization of this classification by endoscopists has been limited due to the perceived relevance and subjectivity of the classification. With the advent of endoscopic treatment options for GERD, there is renewed enthusiasm to develop a grading system of the EGJ that can objectively define anatomical impairment and reduce interobserver grading variability. Methods: The AFS convened a 13-member working group tasked with reviewing the Hill grade classification and formulating a proposal for its revision utilizing a modified Delphi method. This white paper summarizes the output from this working group. Results: The working group concluded that all components of the antireflux barrier—the lower esophageal sphincter and its sling fibers, the crural diaphragm, and the gastroesophageal flap valve—contribute to EGJ integrity. Using defined objective parameters of extent of hiatal axial herniation and crural disruption and presence or absence of a flap valve, the new AFS classification stratifies EGJ integrity from normal (grade 1) to increasing degrees of EGJ disruption (grade 2-4) beginning with loss of the flap valve and progressing to increasing degrees of crural disruption and hiatus hernia. This AFS classification also stipulates appropriate endoscopic methodology to utilize in making the assessment and provides a basic nomenclature for communication among endoscopists. Conclusions: The AFS endoscopic classification of the EGJ expands on the Hill classification by including assessment of axial hiatal hernia length (L), hiatal aperture diameter (D), and presence or absence of the flap valve (F) making it more comprehensive - LDF components. Future directions include validation studies correlating the ability of the AFS classification in predicting the presence and severity of GERD.