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Triadafilopoulos, George

https://orcid.org/0000-0002-4233-3773

Mayo Clinic

Stanford Medicine

Citations 8

A Delphi Method for Development of a Barrett’s Esophagus Question Prompt List as a Communication Tool for Optimal Patient-physician Communication
Kamal, A. N. , Wang, Chih-Hung Jason, Diehl, David L. , DuCoin, Christopher , Dunst, Christy M. , Iyer, Prasad G. , Katzka, David A. , Konda, Vani J. , Muthusamy, Raman, Otaki, Fouad , Rubenstein, Joel H. , Shaheen, Nicholas J. , Smith, Michael S. , Sujka, Joseph , Tatum, Roger P. , Ujiki, Michael , Wani, Sachin , Clarke, John O. , Clarke, J , Otaki, Fouad , Kamal, Afrin N., Triadafilopoulos, George , Falk, Gary W. , Muthusamy, Raman, Pleskow, Douglas K. , Sharma, Prateek , Swanström, Lee L. , Trindade, Arvind J.

Journal of Clinical Gastroenterology | February 8, 2023 | Volume: 58 | Issue: 2 | Pages: 131-135

10.1097/mcg.0000000000001832 Get It

Background Methods: The question prompt list content was derived through a modified Delphi process consisting of 3 rounds. In round 1, experts provided 5 answers to the prompts “What general questions should patients ask when given a new diagnosis of Barrett’s esophagus” and “What questions do I not hear patients asking, but given my expertise, I believe they should be asking?” Questions were reviewed and categorized into themes. In round 2, experts rated questions on a 5-point Likert scale. In round 3, experts rerated questions modified or reduced after the previous rounds. Only questions rated as “essential” or “important” were included in Barrett’s esophagus question prompt list (BE-QPL). To improve usability, questions were reduced to minimize redundancy and simplified to use language at an eighth-grade level (Fig. 1). Results: Twenty-one esophageal medical and surgical experts participated in both rounds (91% males; median age 52 years). The expert panel comprised of 33% esophagologists, 24% foregut surgeons, and 24% advanced endoscopists, with a median of 15 years in clinical practice. Most (81%), worked in an academic tertiary referral hospital. In this 3-round Delphi technique, 220 questions were proposed in round 1, 122 (55.5%) were accepted into the BE-QPL and reduced down to 76 questions (round 2), and 67 questions (round 3). These 67 questions reached a Flesch Reading Ease of 68.8, interpreted as easily understood by 13 to 15 years olds. Conclusions: With multidisciplinary input, we have developed a physician-derived BE-QPL to optimize patient-physician communication. Future directions will seek patient feedback to distill the questions further to a smaller number and then assess their usability.
Development of a Preliminary Question Prompt List as a Communication Tool for Adults With Achalasia
Zhuo, Justin , Clarke, John O. , Gyawali, C. Prakash , Hawn, Mary T. , Hwang, Joo Ha , Katzka, David A. , Massey, Benson T. , Patel, Dhyanesh A. , Savarino, Edoardo , Smout, A. J. P. M. , Tatum, Roger P. , Vela, Marcelo F. , Zaninotto, Giovanni, Kamal, A. N. , Clarke, J , Gyawali, C P , Savarino, Edoardo , Triadafilopoulos, George , Bredenoord, Albert J. , Fass, Ronnie , Kahrilas, Peter J. , Low, Donald E. , Penagini, Roberto , Roman, Sabine , Swanström, Lee L. , Kamal, Afrin N.

Journal of Clinical Gastroenterology | February 18, 2022 | Volume: 57 | Issue: 2 | Pages: 159-164

10.1097/mcg.0000000000001671 Get It

Background: Question prompt lists (QPLs) are structured sets of disease-specific questions that enhance patient-physician communication by encouraging patients to ask questions during consultations. Aim: The aim of this study was to develop a preliminary achalasia-specific QPL created by esophageal experts. Methods: The QPL content was derived through a modified Delphi method consisting of 2 rounds. In round 1, experts provided 5 answers to the prompts “What general questions should patients ask when given a new diagnosis of achalasia” and “What questions do I not hear patients asking, but given my expertise, I believe they should be asking?” In round 2, experts rated questions on a 5-point Likert scale. Questions considered “essential” or “important” were accepted into the QPL. Feedback regarding the QPL was obtained in a pilot study wherein patients received the QPL before their consultation and completed surveys afterwards. Results: Nineteen esophageal experts participated in both rounds. Of 148 questions from round 1, 124 (83.8%) were accepted into the QPL. These were further reduced to 56 questions to minimize redundancy. Questions were categorized into 6 themes: “What is achalasia,” “Risks with achalasia,” “Symptom management in achalasia,” “Treatment of achalasia,” “Risk of reflux after treatment,” and “Follow-up after treatment.” Nineteen patients participated in the pilot, most of whom agreed that the QPL was helpful (84.2%) and recommended its wider use (84.2%). Conclusions: This is the first QPL developed specifically for adults with achalasia. Although well-received in a small pilot, follow-up studies will incorporate additional patient feedback to further refine the QPL content and assess its usability, acceptability, and feasibility.
Question Prompt List as a Communication Tool for Adults With Gastroesophageal Reflux Disease
Kamal, A. N. , Achkar, Edgar, Carlson, Dustin A. , Clarke, John O. , Gyawali, C. Prakash , Katzka, David A. , Patel, Dhyanesh A. , Rezaie, Ali , Savarino, Edoardo , Shaheen, Nicholas J. , Clarke, J , Gyawali, C P , Savarino, Edoardo , Kamal, Afrin, Fass, Ronnie , Penagini, Roberto , Roman, Sabine , Triadafilopoulos, George

Journal of Clinical Gastroenterology | October 18, 2021 | Volume: 56 | Issue: 7 | Pages: 565-570

10.1097/mcg.0000000000001613 Get It

Background: Question prompt lists (QPLs) are structured sets of disease-specific questions intended for patient use, enhancing the patient-physician communication by encouraging patients to ask relevant questions during a consultation. Recently, a preliminary 78 question gastroesophageal reflux disease (GERD) specific QPL was created by 12 esophageal experts through a modified Delphi (RAND/University of California, Los Angeles) technique. Patients’ perspectives and opinions on each question, however, had not been accounted for in the preliminary expert’ version. Aim: The aim was to modify a preliminary experts’ QPL, specific to adults with GERD, following patient perspectives and opinions. Methods: A preliminary GERD QPL was modified through patient input and opinions. Thirty-eight patients with a clinical diagnosis of GERD followed at Stanford University Esophageal Clinic between January and November 2019 were consented to modify the preliminary 78 question expert QPL version. After receiving the QPL in Qualtrics (Provo, UT) by a direct e-mail invitation, patients independently rated questions on a 5-point Likert scale, where 1=“should not be included,” 2=“unimportant,” 3=“don’t know/depends,” 4=“important,” and 5=“essential.” Questions were accepted for inclusion in the QPL with an a priori interagreement of 80% ranking in the range of 4 to 5. At the end, patients were encouraged to propose additional questions to incorporate into the QPL by open-endedly asking “Are there questions we didn’t ask, that you think we should?” Results: Twenty-three patients with GERD (19 female, median age 64) fully participated and modified the existing QPL (60.5%). Of the 78 questions from the preliminary GERD QPL, 66 questions (84.6%) were accepted for inclusion. The question with the highest agreement among patients rating a question as essential consisted of “what habits, food, and drinks do I have to avoid?” (82.6%). Questions eliminated because of disagreement included “What is the natural history of GERD,” “Do I have a high chance to die from my Barrett’s?,” and “Why are you prescribing an antidepressant to treat my GERD?” Nine patients suggested additional questions totaling to 16 separate questions, including “What type of surgeries are there to help GERD?,” “What stage is my GERD?,” “What are the odds/percentage of getting cancer from GERD?” Incorporating the suggested questions, the final GERD QPL—created by esophageal experts and modified by patients—consisted of 82 questions. Conclusion: Esophageal experts and GERD patients have a high level of agreement on important questions, though there is some variation in perspective. Future studies can simplify this list and measure the impact of a shared GERD QPL on patients’ decisional conflict and perceived involvement in care.
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.
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.
Ineffective esophageal motility: Concepts, future directions, and conclusions from the Stanford 2018 symposium
Gyawali, C. Prakash , Carlson, Dustin A. , Hawn, Mary T. , Katzka, David A. , Pandolfino, John E. , Penagini, Roberto , Roman, Sabine , Savarino, Edoardo , Tatum, Roger P. , Vaezi, Michel, Clarke, John O. , Triadafilopoulos, George , Carlson, Dustin A , Penagini, Roberto , Roman, S , Clarke, J , Gyawali, C P , Triadafilopoulos, George , Savarino, Edoardo , Sifrim, Daniel , Vaezi, Michael F.

Neurogastroenterology & Motility | April 12, 2019 | Volume: 31 | Issue: 9 | Pages: No page available

10.1111/nmo.13584 Get It

AbstractBackgroundIneffective esophageal motility (IEM) is a heterogenous minor motility disorder diagnosed when ≥50% ineffective peristaltic sequences (distal contractile integral <450 mm Hg cm s) coexist with normal lower esophageal sphincter relaxation (integrated relaxation pressure < upper limit of normal) on esophageal high‐resolution manometry (HRM). Ineffective esophageal motility is not consistently related to disease states or symptoms and may be seen in asymptomatic healthy individuals.PurposeA 1‐day symposium of esophageal experts reviewed existing literature on IEM, and this review represents the conclusions from the symposium. Severe IEM (>70% ineffective sequences) is associated with higher esophageal reflux burden, particularly while supine, but milder variants do not progress over time or consistently impact quality of life. Ineffective esophageal motility can be further characterized using provocative maneuvers during HRM, especially multiple rapid swallows, where augmentation of smooth muscle contraction defines contraction reserve. The presence of contraction reserve may predict better prognosis, lesser reflux burden and confidence in a standard fundoplication for surgical management of reflux. Other provocative maneuvers (solid swallows, standardized test meal, rapid drink challenge) are useful to characterize bolus transit in IEM. No effective pharmacotherapy exists, and current managements target symptoms and concurrent reflux. Novel testing modalities (baseline and mucosal impedance, functional lumen imaging probe) show promise in elucidating pathophysiology and stratifying IEM phenotypes. Specific prokinetic agents targeting esophageal smooth muscle need to be developed for precision management.
Strategy for prevention of cancers of the esophagus
Akiyama, Junichi, Alexandre, Leo , Baruah, Anushka , Buttar, Navtej , Chandra, Raghav , Clark, Allan , Hart, Andrew , Hawk, Ernest T. , Kandioler, Daniela , Kappel, Sonja, Krishnadath, Sheila, Sharma, Anamay N. , Singh, Ishtpreet, Straub, Daniëlle, Triadafilopoulos, George , Wolf, Brigitte , Umar, Asad , Triadafilopoulos, George

Annals of the New York Academy of Sciences | September 29, 2014 | Volume: 1325 | Issue: 1 | Pages: 108-126

10.1111/nyas.12529 Get It

The following, from the 12th OESO World Conference: Cancers of the Esophagus, includes commentaries on the animal reflux–inflammation models for Barrett's esophagus and esophageal adenocarcinoma; genomic/epigenomic analyses; eflornithine‐based combinations; the molecular derangements that promote neoplastic transformation; the role of COX‐2 inhibitors, proton pump inhibitors, and phase II trials in Barrett's adenocarcinoma; statins in chemoprevention and treatment of esophageal cancer; and biomarkers as potential targets in Barrett's adenocarcinoma.