Keep it simple: a crosshair on the screen during proctored laparoscopic surgeries.

Introduction: Inside the operating room, experts use verbal instructions to guide surgical novices through laparoscopic procedures. In this study, we evaluated the use of a crosshair attached to the video monitor, as a hands-free pointing tool to simplify instructions during operation.

Methods: Ten surgical novices performed two elective laparoscopic cholecystectomies within a week of each other, randomized such that one was performed with and the other without using the crosshair.

Targeted use of intraoperative frozen-section analysis lowers the frequency of completion thyroidectomy.

Background: The impact of intraoperative frozen section (iFS) analysis on the frequency of completion thyroidectomy for the management of thyroid carcinoma is controversial. Although specialized endocrine centres have published their respective results, there are insufficient data from primary and secondary healthcare levels. The aim of this study was to analyse the utility of iFS analysis.

Integrative Concepts for Liver Surgery.

Background: Surgery is the standard treatment for primary tumors and metastases. Due to improvements in surgical outcomes as well as the efficacy of systemic treatments, the role of surgery has changed in recent years.

Summary: Liver surgery has become safe and efficient, with resectability being increased by multimodality concepts as well as staged liver resections and orthotopic liver transplantation.

Recurrent laryngeal nerve monitoring during totally robot-assisted Ivor Lewis esophagectomy.

Purpose: The robot-assisted approach for Ivor Lewis esophagectomy offers an enlarged, three-dimensional overview of the intraoperative situs. The vagal nerve (VN) can easily be detected, preserved, and intentionally resected below the separation point of the recurrent laryngeal nerve (RLN). However, postoperative vocal cord paresis can result from vagal or RLN injury during radical lymph node dissection, presenting a challenge to the operating surgeon.

[EUROCRINE®: adrenal surgery 2015-2019- surprising initial results].

Background: Since 2015 operations performed in the field of endocrine surgery have been entered into the European registry EUROCRINE®. The aim of this analysis was a description of the current healthcare situation for adrenal surgery in a homogeneous healthcare environment corresponding to the German-speaking countries-or to the presence of the working group on surgical endocrinology (CAEK) of the German society for general and visceral surgery (DGAV)-and to assess the adherence to current international treatment guidelines.

Methods: An analysis of the preoperative diagnostics, the applied operative techniques and the underlying histological entities was carried out for all operations on adrenal glands in Germany, Switzerland and Austria, which were registered in EUROCRINE® from 2015 to 2019.

Effect of intraoperative nerve monitoring on postoperative vocal cord palsy rates after thyroidectomy: European multicentre registry-based study.

Background: Intraoperative nerve monitoring (IONM) of the recurrent laryngeal nerve (RLN) predicts the risk of vocal cord palsy (VCP). IONM can be used to adapt the surgical strategy in order to prevent bilateral VCP and associated morbidity. Controversial results have been reported in the literature for the effect of IONM on rates of VCP, and large multicentre studies are required for elucidation.

Thyroid surgery in children and young adults: potential overtreatment and complications.

Purpose: Thyroid nodules in the pediatric population are more frequently associated with malignant thyroid disease than in adult cohorts. Yet, there is a potential risk of surgical overtreatment. With this single center study, an analysis of potential overtreatment for suspected malignant thyroid disease in children and young adults was aimed for.

Rating of camera navigation skills in colorectal surgery.

Purpose: In advanced minimally invasive surgery the laparoscopic camera navigation (LCN) quality can influence the flow of the operation. This study aimed to investigate the applicability of a scoring system for LCN (SALAS score) in colorectal surgery and whether an adequate scoring can be achieved using a specified sequence of the operation.

Methods: The score was assessed by four blinded raters using synchronized video and voice recordings of 20 randomly selected laparoscopic colorectal surgeries (group A: assessment of the entire operation; group B: assessment of the 2nd and 3rd quartile).

Correction to: Prognostic Assessment of Non-functioning Neuroendocrine Pancreatic Neoplasms as a Basis for Risk-Adapted Resection Strategies.

This article contains parts of the doctoral thesis of F. Meyer.

Prognostic Assessment of Non-functioning Neuroendocrine Pancreatic Neoplasms as a Basis for Risk-Adapted Resection Strategies.

Background: In contrast to exocrine pancreatic carcinomas, prognosis and treatment of pancreatic neuroendocrine neoplasms (PNEN) are significantly different. The variable growth pattern and associated clinical situation of functioning and non-functioning PNEN demand an individualized surgical approach. However, due to the scarce evidence associated with the rare disease, guidelines lack detailed recommendations for indication and for the required extent of surgical resection.

Structured assessment of laparoscopic camera navigation skills: the SALAS score.

Background: Tools are needed to assess laparoscopic camera navigation (LCN) in the operating room. Here, we aimed to develop an objective rating scale for LCN.

Study Design: We defined the following key aspects of LCN: operational field centering, correct angle of the horizon, correct instrument visualization, verbal commands from the operating surgeon, and manual corrections from the operating surgeon.

Surgical Treatment of NEN of Small Bowel: A Retrospective Analysis.

Background: Neuroendocrine Neoplasms of the small intestine have been noticed more frequently over the past 35 years. They constitute about 25% of all NENs and 29% of all tumors of the small intestine. Due to the predominantly indolent nature and overall good prognosis, the benefit of surgical treatment is still debated.

Surgical therapy of neuroendocrine neoplasm with hepatic metastasis: patient selection and prognosis.

Background: Patients with neuroendocrine neoplasms (NEN) develop hepatic metastases in 50-95 %. The aims of this study were to evaluate the outcome/prognosis of patients following hepatic surgery and to identify predictive factors for the selection of patient that benefit from hepatic tumor resection.

Patients And Methods: In a retrospective single-center study (1990 to 2014), 204 patients with hepatic metastasis of NEN were included.

Resection strategies for neuroendocrine pancreatic neoplasms.

Introduction: Due to their rarity and lack of prospective trials, the optimal treatment of pancreatic neuroendocrine neoplasms (PNENs) is still debated. Recommendations gathered by retrospective analyses of patient data should be based on the new classification of neuroendocrine neoplasms.

Methods: In a retrospective single-center study (1990 to 2012), 127 patients with PNENs were included.

Impact of pathognomonic genetic alterations on the prognosis of papillary thyroid carcinoma. ESES vienna presentation.

Introduction: BRAF mutations and RET or NTRK1 rearrangements were identified as causing events that drive the malignant transformation of the thyroid follicular cell. The impact of these alterations on the course of papillary thyroid carcinoma (PTC) is still unsettled.

Patients And Methods: Tumor tissues of 290 (98 male, 192 female) patients were intra-operatively snap frozen or harvested from archival paraffin-embedded blocks and used for extraction of DNA and RNA.

[Differentiated surgical therapy for neuroendocrine tumours (NET) of the stomach].

Neuroendocrine tumours (NET) of the stomach have increasingly entered into the focus of attention recently by endocrinologists as well as by surgeons on account of new findings on their biological background and their clinical relevance. The discriminating pathogenesis and the basically different biological behaviours of neuroendocrine tumours of the stomach require a differentiated therapeutical treatment for the different sub-types. The differential diagnostic clarification of the basic pathomechanism is therefore of decisive importance.