Respiratory and Hemodynamic Implications of Endoscopic Myotomy of the Esophagus and Stomach

The goal of this observational study is to learn about hemodynamic and respiratory repercussions during general anesthesia in patients with achalasia or gastroparesis who underwent an endoscopic treatment such as a peroral endoscopic myotomy (POEM) or gastric (GPOEM).The main questions it aims to answer are:Are there predictable elements reliable to this study-population for the occurrence of adverse events/complications?Is there a correlation between the value (percutaneous puncture) of the intra-abdominal pressure and the variations of the patient's respiratory and hemodynamic parameters in the event of a pneumoperitoneum complication?Participants will be treated with the usual standard of care for this procedure and no additional or specific therapy will be planned for this study.

Inclusion Criteria:Completed and signed consent form (consent form attached)Age ≥ 18 years oldAnesthetic risk classification according to ASA, from 1 to 3Patients summoned for POEM or GPOEM type endoscopy treatmentExclusion Criteria:- Inability to follow study procedures, eg. due to language problems, psychological disorders, dementia, etc. of the participant