TY - JOUR TI - Graded pneumatic dilation in subtype I and II achalasia: long-term experience in a single center AU - Torresan, Francesco AU - Cortellini, Fabio AU - Azzaroli, Francesco and AU - Ioannou, Alexandros AU - Mularoni, Cecilia AU - Shoshan, Dikla and AU - Mandolesi, Daniele AU - De Giorgio, Roberto AU - Karamanolis, George and AU - Bazzoli, Franco JO - ANNALS OF GASTROENTEROLOGY PY - 2022 VL - 35 TODO - 1 SP - 28-33 PB - HELLENIC SOC GASTROENTEROLOGY SN - 1108-7471 TODO - 10.20524/aog.2021.0683 TODO - Esophageal achalasia; pneumatic dilation; Heller myotomy; endoscopic gastrointestinal surgery; high-resolution manometry TODO - Background The efficacy of pneumatic dilation (PD) in the management of achalasia has yielded variable results. The availability of high-resolution manometry led to the identification of 3 clinically relevant subtypes of achalasia, revealing the poor efficacy of PD in subtype III. Furthermore, PD showed a lower response rate in patients with subtype III compared to laparoscopic Heller myotomy and peroral endoscopic myotomy. This study aimed to investigate the short- and long-term efficacy, safety profile and side effects of PD with a “graded approach” in subtypes I and II achalasia. Methods We enrolled 141 patients (male 67, mean age=66 +/- 16.26 years) with achalasia (n=27 subtype I, n=74 subtype II and n=40 subtype III) between January 2010 and July 2020 at St. Orsola University Hospital, Bologna, Italy. We analyzed the data of patients with subtypes I and II, who underwent a graded-protocol PD. Short- and long-term clinical efficacy, complications and gastroesophageal reflux disease (GERD) were recorded. Results One month after graded protocol PD, 100% subtype I and 96.2% subtype II achalasia patients showed clinical remission. The PD procedure was completed without major complications in all patients. In the long-term follow up (median time: 56 months), 95.5% subtype I and 90% subtype II achalasia patients had an Eckardt score <= 3. GERD occurred in 27.7% of all patients. Conclusion A graded-protocol PD applied in the appropriate achalasia subtypes was shown to be a safe and highly effective approach, in both the short- and long-term. ER -