Department of Clinical Medicine and Surgery;
University of Naples FedericoⅡ;
School of Medicine;
80131 Naples;
Italy;
Center of Excellence for Technical Innovation in Surgery;
University of Naples FedericoⅡ;
School of Medicine;
80131 Naples;
Italy;
Achalasia; High; resolution; manometrysubtypes; Eckardt; score; Per-oral; endoscopic; myotomy; Pneumatic; dilatation; Botulin; toxin; Myotomy;