Publications by authors named "Klaus Peitgen"

The importance of multimodal treatment for advanced esophago-gastric cancer has contributed to the development of more accurate preoperative staging strategies. The impact of staging laparoscopy and cytology after conventional staging is evaluated in this study. Staging laparoscopy was performed in 125 patients with potentially resectable cancer of the distal esophagus or gastric cancer.

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Background: The posterior retroperitoneoscopic adrenalectomy is less popular than the laparoscopic transabdominal method. Due to the direct approach to the adrenal glands, however, the posterior retroperitoneal access is easy to use and may offer advantages not available with other endoscopic procedures for adrenalectomy.

Methods: Between July 1994 and March 2006, we performed 560 adrenalectomies (right side: n = 258; left side: n = 302) by the posterior retroperitoneoscopic approach in 520 patients (200 male, 320 female; age, 10 to 83 years).

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Background: Today, the posterior retroperitoneoscopic technique has become a standard procedure in adrenal surgery. The procedure allows direct access to the adrenal glands, but it seems to be difficult because of the uncommon anatomic view. This study compares the learning period of the new procedure of "posterior retroperitoneoscopic adrenalectomy" in the primary invention phase and the secondary introductory phase in a different hospital 10 years later.

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The retroperitoneoscopic approach is a standardized operative procedure for primary adrenal gland tumors. It allows direct access with a detailed view of the adrenal gland. Thereby, a clear differentiation between normal and neoplastic adrenal tissue is often possible, which permits a planned partial resection of the gland in selected cases.

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Because of extensive intraoperative catecholamine release, extreme vascularization, and demanding localization, laparoscopic and retroperitoneoscopic excision of pheochromocytomas and retroperitoneal paragangliomas is challenging. In a prospective clinical study, 61 chromaffin neoplasms (52 pheochromocytomas, 9 paragangliomas) were removed endoscopically from 52 patients (30 males, 22 females; age 44.4 +/- 16.

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