
Foregut surgeon and researcher @ahntoday Esophageal Institute
Pittsburgh, PA
Joined June 2009
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- Following482
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🔬 Beyond symptom relief: Can gastroparesis surgery improve diabetes outcomes?
📊 Our study in @JAMASurgery (95,328 patients; 2,272 matched pairs):
📉 5-year HbA1c: 6.29% vs 7.21%
💉 Lower insulin use
✅ Fewer diabetes complications: 53.2% vs 63.3%
🎯 Surgery may offer metabolic benefits beyond symptom control.
🔗 doi.org/10.1001/jamasurg.202…
@SSATNews @SAGES_Updates @sepdigestiva
@CelestinoGutirr @NeilFlochMD @sminaev2015
@stevenbollipo @drkeithsiau @CarlKayMD
🔬 Does H. pylori infection influence progression of Barrett’s esophagus?
📊 In our study published in @JournalofGISurg, involving 266,856 patients with nondysplastic Barrett’s esophagus:
📉 H. pylori infection was associated with lower progression to dysplasia or esophageal adenocarcinoma (3.9% vs 8.3%).
🎯 Potential implications for risk stratification.
🔗 doi.org/10.1016/j.gassur.202…
@SSATNews @SAGES_Updates
@sepdigestiva @CelestinoGutirr @NeilFlochMD
@sminaev2015 @stevenbollipo
@drkeithsiau @CarlKayMD
#BarrettsEsophagus #GERD
Shahin Ayazi retweeted
Lyon 2.0 may leave out patients who still benefit from antireflux operation.
Among 1,068 patients, 73.1% who met conventional surgical criteria, but not Lyon 2.0, achieved favorable outcomes. Outcome discrimination was similar between frameworks.
Read the full, open access study by @SvenESEriksson and colleagues at: ovid.com/10.1097/XCS.0000000…
Shahin Ayazi retweeted
A new clinical article authored by doctors, @Sayazi, Giulia Nezi, and John C. Lipham, discusses how assessing mucosal integrity may complement traditional pH monitoring after antireflux surgery.
👉Download the @JournalofGISurg article.
#GERD #Esophagus
okt.to/DBv2NP
Shahin Ayazi retweeted
Among patients undergoing antireflux surgery, BMI ≥35 was not associated with worse symptom outcomes or long-term anatomic durability, suggesting BMI alone should not determine surgical candidacy. ovid.com/10.1097/SLA.0000000…
Mark your calendars! DDW 2027 abstract submission opens October 22, 2026, with submissions due by December 2, 2026.
Start preparing your research and save the dates!
🗓️ Mark your calendar: the road to #DDW2027 starts now.
Save these dates and make DDW part of your bigger picture. Get the full roadmap 👉 ow.ly/1c9m50ZGzHP
@AASLDtweets @SSATNews @ASGEendoscopy @AmerGastroAssn
#GITwitter #MedTwitter #LiverTwitter
📘 New review in @AnnalsofSurgery
Beyond acid exposure, mucosal impedance offers a window into esophageal mucosal integrity.
⚡ What does it measure?
🔬 How is it performed?
📊 Where does it fit alongside pH testing?
🧭 Can it improve GERD phenotyping and clinical decision-making?
We review the current evidence, limitations, and future role of mucosal impedance in foregut practice.
🔗 ovid.com/jnls/annalsofsurger…
@SAGES_Updates @sepdigestiva @CelestinoGutirr
@NeilFlochMD @sminaev2015 @stevenbollipo
@drkeithsiau @CarlKayMD @SSATNews
#GERD #MucosalImpedance #Foregut #Esophagus
🔬 🔬 Can Barrett’s esophagus regress after antireflux surgery?
Our study in @AnnalsofSurgery examines who is most likely to experience histologic regression.
📊 234 patients | 53.4% histologic regression
📏 Regression confined to ultrashort/short segments
🛠️ An intact repair was associated with greater regression: 64.2% vs 38.8%
💡 Segment length and repair integrity matter—not simply the choice of procedure.
🔓 Read the study:
doi.org/10.1097/SLA.00000000…
#BarrettsEsophagus #ForegutSurgery
@SAGES_Updates @sepdigestiva @CelestinoGutirr
@sminaev2015 @drkeithsiau @stevenbollipo @CarlKayMD
Shahin Ayazi retweeted
Among patients with GERD, low socioeconomic status was associated with lower rates of endoscopic evaluation and Barrett’s esophagus diagnosis, but higher rates of early-onset and metastatic esophageal adenocarcinoma. ovid.com/10.1097/SLA.0000000…
📢 Read our paper in the July issue of @acsJACS
⚠️ Gas bloat after Nissen fundoplication may be more than a postoperative nuisance.
📈 Nearly 3× higher 5-year anatomical failure
🔄 >3× higher revisional surgery
🔓 Open access:
ovid.com/jnls/journalacs/ful…
@SAGES_Updates @sepdigestiva
@CelestinoGutirr @NeilFlochMD
@sminaev2015 @stevenbollipo
🌿 Cannabis use and outcomes after surgery for #Gastroparesis
In this Surgical Endoscopy @SAGES_Updates study:
🤢 Greater preoperative symptom burden
🔁 Higher early reintervention rates
🏥 More hospital admissions
📉 Less outpatient follow-up and engagement
⏳ Greater long-term healthcare utilization
🔗 Read the full-text article:
link.springer.com/article/10…
#SurgicalEndoscopy #ForegutSurgery #GISurgery #Cannabis #ClinicalResearch
It was a pleasure to welcome Guilherme M. Campos, MD, PhD, from @VCU_Surgery as our Visiting Professor for the Chevalier Jackson Lectureship, hosted by the Chevalier Jackson Esophageal Research Center, Department of Surgery at Allegheny Health Network.
A wonderful two days of education, discussion, and collaboration in esophageal and foregut surgery. Grateful to Dr. Campos for sharing his expertise and experience with our team.
@AHNSurgeryInst @AHNtoday @AHNGastro @SSATNews @SAGES_Updates @VCUGenSurgRes
#ForegutSurgery #EsophagealSurgery #SurgicalEducation
📄 In this @JournalofGISurg study, we examined disparities in presentation and outcomes after surgical treatment of medically refractory #Gastroparesis.
👥 Demographic and socioeconomic differences in presentation
🏥 Surgical treatment produced meaningful improvement across SES groups
📊 Persistent symptom patterns differed among demographic groups
⚖️ Outcomes reflect both clinical and social factors
🔗 Read the full-text article:
sciencedirect.com/science/ar…
#JOGS #GISurgery #ForegutSurgery #HealthDisparities
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Join SSAT on June 23 for the Esophageal Committee Webinar: “Barrett’s Esophagus: Risk Stratification, Treatment Thresholds, and the Role of Antireflux Surgery.”
@Sayazi
@yvigneswaran
@JenKolbMD
@BrianLouie4
@TissueCypher
Register today: ow.ly/8JzJ50ZaBxT
Shahin Ayazi retweeted
Publication in @AnnalsofSurgery marks a milestone for mucosal impedance. A review by @Sayazi, @SvenESEriksson, and @JRappaportMD highlights its role in surgical decision‑making & outcome assessment for GERD.
#PeerReview #GITwitter
okt.to/ZIoh0y
Shahin Ayazi retweeted
Surgical therapy for #gastroparesis in adults with #diabetes was associated with improved glycemic control, reduced insulin utilization, and fewer diabetes-related complications vs nonoperative management.
ja.ma/4fNl9uQ
A tribute session honoring Mario Costantini—a long-standing SSAT member and enduring presence at DDW for decades. His contributions to esophageal surgery and physiology, and his commitment to this community, leave a lasting legacy.
#SSAT #DDW2026 #Foregut @DDWMeeting
Packed room for “Esophageal Surgery and Invasive GERD Management.” Outstanding presentations and high-level, thoughtful discussion.
🎯 #DDW2026 #SSAT #MedTwitter #GITwitter #GERD #EsophagealSurgery #Foregut @DDWMeeting
The Tom DeMeester Lecture Series continues to set the tone for how we think about esophageal physiology, thoughtful talks and discussion that stay grounded in fundamentals. #DDW2026 #Foregut @DDWMeeting @UjikiMike @amber_shada @UPMC_CTSurgery @ForegutSociety
🔬 SSAT–ASGE Joint Symposium
Endoscopic Resection and Third Space Endoscopic Surgery in the Foregut
🗓️ May 2, 2026
🕓 4:00–5:30 PM
📍 Room W181, McCormick Place, Chicago
#SSAT2026 #DDW2026 #ForegutSurgery #Endoscopy #ThirdSpaceEndoscopy
@ASGEendoscopy @MouenKhashab









































