Subjects will undergo no additional tests and procedures as part of this study. All data will be collected from patient's electronic health records (EHR) of the hospital In addition; a prospective chart review will be performed for patients who will undergo endoscopic procedures and POEM from 02/2019 - 06/2021. All the subjects enrolled in prospective chart review will be first consented for their study participation. Subjects will undergo a clinically indicated endoscopic procedure and POEM and subsequent follow-up clinical visits as part of their standard medical care. All procedures, barring research activities such as consenting and data collection from Electronic Health Records, will be either clinically indicated and/or standard of care.~Each patient in the study will be assigned a Case ID number to de-identify their personal health information during data collection~The Case ID number connecting the patient to the personal health information will be in an encrypted electronic file on a computer that can only be accessed by study members at MDMC.~A procedure report and outpatient clinical records for each subject's POEM procedure will be used to record each patient's data for the registry~That data will only be shared by members of the study (PIs, research coordinator) who require it for conducting of data collection/interpretation~Disclaimer: Any cost associated with the procedures stated herein will be billed directly to you or to your insurance (as applicable).
There will be a retrospective chart review for patients who underwent endoscopic procedures and POEM from 06/2016 - 01/2019 & a prospective chart review will be performed for patients who will undergo endoscopic procedures and POEM from 02/2019 - 06/2021