[Metabolic deficiencies in gastroenterology (author's transl)]

Metabolic disturbances are one of the main reasons for complications in gastroenterologic surgery. There is a large number of inflammatory, neoplastic, and iatrogenic illnesses that cause considerable deficiencies. The intensity of disturbances depends on localization, duration, and extension of the pathologic alterations. Important for the postoperative outcome is the preoperative compensation of caloric and protein deficiencies: 1.5 g of amino acids per kg body weight/24 h and energy 160-200 joule per kg body weight/24 h.