Back to Authors

Fass, Ronnie

https://orcid.org/0000-0002-4807-3052

Mayo Clinic

MetroHealth Medical Center

Citations 14

Development of quality indicators for the diagnosis and management of achalasia
Kamal, A. N. , Kathpalia, Priya , Otaki, Fouad , Bredenoord, Albert J. , Castell, Donald O., Clarke, John O. , Fass, Ronnie , Gyawali, C. Prakash , Katz, Philip O. , Katzka, David A. , Pandolfino, John E. , Richter, Joel E. , Savarino, Edoardo , Vaezi, Michael F. , Vela, Marcelo F. , Leiman, David A. , Kamal, Afrin N , Fass, Ronnie , Gyawali, C P , Penagini, Roberto , Roman, S , Triadafilopoulos, George , Leiman, David A , Clarke, J , Savarino, Edoardo , Otaki, Fouad , Falk, Gary W. , Kahrilas, Peter J. , Penagini, Roberto , Roman, Sabine , Triadafilopoulos, George

Neurogastroenterology & Motility | March 15, 2021 | Volume: 33 | Issue: 10 | Pages: No page available

10.1111/nmo.14118 Get It

AbstractBackgroundThe management of achalasia has improved due to diagnostic and therapeutic innovations. However, variability in care delivery remains and no established measures defining quality of care for this population exist. We aimed to use formal methodology to establish quality indicators for achalasia patients.MethodsQuality indicator concepts were identified from the literature, consensus guidelines and clinical experts. Using RAND/University of California, Los Angeles (UCLA) Appropriateness Method, experts in achalasia independently ranked proposed concepts in a two‐round modified Delphi process based on 1) importance, 2) scientific acceptability, 3) usability, and 4) feasibility. Highly valid measures required strict agreement (≧ 80% of panelists) in the range of 7–9 for across all four categories.Key ResultsThere were 17 experts who rated 26 proposed quality indicator topics. In round one, 2 (8%) quality measures were rated valid. In round two, 19 measures were modified based on panel suggestions, and experts rated 10 (53%) of these measures as valid, resulting in a total of 12 quality indicators. Two measures pertained to patient education and five to diagnosis, including discussing treatment options with risk and benefits and using the most recent version of the Chicago Classification to define achalasia phenotypes, respectively. Other indicators pertained to treatment options, such as the use of botulinum toxin for those not considered surgical candidates and management of reflux following achalasia treatment.Conclusions & InferencesUsing a robust methodology, achalasia quality indicators were identified, which can form the basis for establishing quality gaps and generating fully specified quality measures.
Esophageal motility disorders on high‐resolution manometry: Chicago classification version 4.0 ©
Yadlapati, Rena , Fox, Mark , Bredenoord, Albert J. , Gyawali, C. Prakash , Roman, Sabine , Babaei, Arash , Mittal, Ravinder K. , Rommel, Nathalie , Savarino, Edoardo , Smout, A. J. P. M. , Vaezi, Michael F. , Akiyama, Junichi, Bhatia, Shobna , Carlson, Dustin A. , Chen, Joan W. , Cisternas, Daniel , Cock, Charles , Defilippi, Claudia, Gonlachanvit, Sutep , Hebbard, Geoffrey , Jung, Kee Wook , Katz, Philip O. , Katzka, David A. , Khan, Anzalee , Kohn, Geoffrey P. , Lazarescu, Adriana , Lengliner, Johannes, Omari, Taher , Pohl, Daniel , Richter, Joel E. , Serra, Jordi , Sweis, Rami , Tack, Jan , Tatum, Roger P. , Vela, Marcelo F. , Wu, Justin C. Y. , Xiao, Yinglian , Pandolfino, John E. , Fox, Mark R , Gyawali, C P , Roman, S , Babaei, Arash , Mittal, Ravinder K , Sifrim, Daniel , Smout, André , Zerbib, Frank , Bor, Serhat , Carlson, Dustin A , Cisternas, Daniel , Cock, Charles , de Bortoli, Nicola , Fass, Ronnie , Ghoshal, Uday C , Jung, Kee Wook , Khan, Abraham , Omari, Taher , Park, Moo In , Penagini, Roberto , Serra, Jordi , Tack, Jan , Savarino, Edoardo , Kahrilas, Peter J. , Bor, Serhat , Coss‐Adame, Enrique , Bortoli, Nicola de , Fass, Ronnie , Ghoshal, Uday C. , Hani, Albis Cecilia , Mittal, Sumeet K. , Penagini, Roberto , Tutuian, Radu I. , Wong, Reuben K.

Neurogastroenterology & Motility | December 29, 2020 | Volume: 33 | Issue: 1 | Pages: No page available

10.1111/nmo.14058 Get It

Abstract Chicago Classification v4.0 (CCv4.0) is the updated classification scheme for esophageal motility disorders using metrics from high‐resolution manometry (HRM). Fifty‐two diverse international experts separated into seven working subgroups utilized formal validated methodologies over two‐years to develop CCv4.0. Key updates in CCv.4.0 consist of a more rigorous and expansive HRM protocol that incorporates supine and upright test positions as well as provocative testing, a refined definition of esophagogastric junction (EGJ) outflow obstruction (EGJOO), more stringent diagnostic criteria for ineffective esophageal motility and description of baseline EGJ metrics. Further, the CCv4.0 sought to define motility disorder diagnoses as conclusive and inconclusive based on associated symptoms, and findings on provocative testing as well as supportive testing with barium esophagram with tablet and/or functional lumen imaging probe. These changes attempt to minimize ambiguity in prior iterations of Chicago Classification and provide more standardized and rigorous criteria for patterns of disorders of peristalsis and obstruction at the EGJ.
Jackhammer Esophagus
Achem, Sami R., Vázquez‐Elizondo, Genaro , Fass, Ronnie

Journal of Clinical Gastroenterology | December 19, 2020 | Volume: 55 | Issue: 5 | Pages: 369-379

10.1097/mcg.0000000000001472 Get It

Jackhammer esophagus (JE) is a recently recognized esophageal motility disorder that is characterized by hypercontractile peristalsis. More than 500 cases have been reported in the literature. Among patients referred for esophageal motility disorders, the prevalence of JE ranges from 0.42% to 9%, with most series describing a prevalence of 2% to 4%. Most cases are women (60.5%). The mean reported age of patients with JE is 65.2 years, and patients commonly have dysphagia (62.8%). Reflux symptoms occur in ∼40% of patients, and chest pain affects more than one-third of patients (36.4%). JE is a heterogenous disorder that is associated with several conditions, including obesity, opioid use, lung transplantation, eosinophilic infiltration of the esophagus, neoplasia, and systemic diseases. The cause and pathogenesis remain unknown, but several observations suggest that it is the result of multiple conditions that likely precipitate increased excitation and abnormal inhibition of neuromuscular function. The natural course of JE also is unknown, but progression to achalasia has been observed in a few patients. Treatment is challenging, in part because of the insufficient understanding of the disorder’s underlying mechanisms. Various therapeutic modalities have been used, ranging from observation only to pharmacologic and endoscopic interventions (eg, botulinum toxin injection) to peroral endoscopic myotomy. Treatment efficacy remains largely anecdotal and insufficiently studied.
Development of a Preliminary Question Prompt List as a Communication Tool for Adults With Gastroesophageal Reflux Disease
Kamal, A. N. , Katzka, David A. , Achkar, Edgar, Carlson, Dustin A. , Clarke, John O. , Gyawali, C. Prakash , Patel, Dhyanesh A. , Rezaie, Ali , Roman, Sabine , Savarino, Edoardo , Shaheen, Nicholas J. , Triadafilopoulos, George , Clarke, J , Roman, S , Gyawali, C P , Triadafilopoulos, George , Savarino, Edoardo , Kamal, Afrin, Fass, Ronnie , Penagini, Roberto

Journal of Clinical Gastroenterology | January 27, 2020 | Volume: 54 | Issue: 10 | Pages: 857-863

10.1097/mcg.0000000000001300 Get It

Background: Question prompt lists (QPLs) are structured sets of disease-specific questions intended for patient use, encouraging patients to ask questions to facilitate their consultation with their physician. Aim: The aim of this study was to develop a QPL specific to adults with gastroesophageal reflux disease (GERD), created by esophageal experts. Methods: The QPL content (78 questions) was derived through a modified Delphi method consisting of 2 rounds. In round 1, 18 esophageal experts provided 5 answers to the prompt “What you wish your patients would ask” and “What questions do patients often not ask, that I wish they would ask?” In round 2, the experts rated each question on a 5-point Likert scale, and responses rated as “essential” or “important,” determined by an a priori threshold of ≥4.0, were accepted for the QPL. Results: Twelve esophageal experts participated. Of 143 questions from round 1, 110 (76.9%) were accepted for inclusion in the QPL, meeting a median value of ≥4.0, and, subsequently, it reduced to 78, minimizing redundancy. Median values ranged between 4.0 and 5.0, with the highest agreement median (5.0) for questions asking dosing and timing of proton pump inhibitor therapy, and surveillance in Barrett’s. Questions were categorized into the following categories: “What does this illness mean,” “lifestyle modifications,” “general treatment,” “treatment with proton pump inhibitors,” “What I should expect for my future,” and “Barrett’s.” The largest number of questions covered lifestyle modifications (21.8%), with the highest agreement median (5.0) for “How helpful are lifestyle modifications in GERD?” Conclusions: A preliminary GERD-specific QPL, the first of its kind, was developed by esophageal experts. Modification after more patient consultation and feedback is planned in subsequent versions to create a GERD-QPL for eventual use in clinical gastroenterology.