Christoph Holmer

The German Registry for Natural Orifice Translumenal Endoscopic Surgery

Kai S. Lehmann, Jörg P. Ritz, Andreas G. Wibmer et al. · Annals of Surgery · 2010 · 202 citations

Outcome of patients with acute sigmoid diverticulitis: Multivariate analysis of risk factors for free perforation

Jörg‐Peter Ritz, Kai S. Lehmann, Bernd Frericks et al. · Surgery · 2010 · 139 citations

Free Perforation, Acute Sigmoid Diverticulitis, Gastroenterology +4

Impact of sleep deprivation on medium-term psychomotor and cognitive performance of surgeons: Prospective cross-over study with a virtual surgery simulator and psychometric tests

Kai S. Lehmann, Peter Martus, Samia Little-Elk et al. · Surgery · 2010 · 75 citations

Psychometric Tests, Sleep, Sleep Disorder +12

Determination of the temperature-dependent electric conductivity of liver tissue ex vivo and in vivo: Importance for therapy planning for the radiofrequency ablation of liver tumours

Urte Zurbuchen, Christoph Holmer, Kai S. Lehmann et al. · International Journal of Hyperthermia · 2010 · 72 citations · Full text

Preoperative CT staging in sigmoid diverticulitis—does it correlate with intraoperative and histological findings?

Jörg‐Peter Ritz, Kai S. Lehmann, Christoph Loddenkemper et al. · Langenbeck s Archives of Surgery · 2010 · 49 citations

Sigmoid Diverticulitis—does, Surgical Pathology, Preoperative Ct Staging +3