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What is Dohlman's procedure is used in and explain in detail?
Zenker's diveiculum is a protrusion of mucosa through killian's dehiscence, a weak area of the posterior pharyngeal wall between thyropharyngeus (oblique fibres) and cricopharyngeus (transverse fibres ) of the inferior constrictor muscle of the pharynx. It is a pulsion diveiculum. Dohlman's approach is minially invasive endoscopic technique wherein pouch is excised using double lipped endoscopy. Cautery or laser is used. It is a quicker procedure with shoer duration of anaesthesia and faster recovery. Reference : page 433-34 SRB's manual of surgery 5th edition