Training Platform for Robotic Assisted Liver Surgery – The Surgeon’s Point of View

2010 ◽  
pp. 485-492
Author(s):  
F. Graur ◽  
L. Scurtu ◽  
L. Furcea ◽  
N. Plitea ◽  
C. Vaida ◽  
...  
Keyword(s):  
Liver Surgery ◽  
Point Of View ◽  
Robotic Assisted

scholarly journals Robotic-Assisted Neck Dissection: Our Experience

2021 ◽  
Author(s):  
Salvatore Poma ◽  
Domenico Michele Modica ◽  
Alessandro Pitruzzella ◽  
Alberto Fucarino ◽  
Gianfranco Mattina ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Neck Dissection ◽  
Personal Experience ◽  
Point Of View ◽  
The Other ◽  
Surgical Results ◽  
Open Technique ◽  
Surgical Time ◽  
Robotic Assisted ◽  
The Aesthetic

Abstract Introduction Robotic neck dissection surgery allows less invasiveness to significantly improve the aesthetic impact even though it does not compromise the principles of radical cancer procedure. Objective The aim of our work is to describe our personal experience with robotic neck dissection surgery. Methods A retrospective study was conducted by analyzing 10 patients subjected to a robotic neck dissection surgery. In the period from August 2012 to December 2018, these patients have been treated exclusively with robotic lateral-cervical dissection. Five of them were subjected to robotic-assisted transaxillary neck dissection (RATAND) and the other 5 treated with robotic-assisted retroauricular neck dissection (RARAND), then the surgical results have been compared with 5 similar dissections performed by open neck dissection (OND). Results The average surgical time of RATAND was estimated in 166 minutes, the average surgical time of RARAND was estimated in 153 minutes and the average surgical time of OND was estimated in 48 minutes. Both robotic techniques are valid from the oncological and aesthetic point of view, but in terms of surgical time, they are much longer than the open technique. Conclusions In terms of the post-operative decree, in our opinion, the retroauricular technique is more rapid for the purposes of recovery.

Outcomes of robotic‐assisted liver surgery versus laparoscopic liver surgery for treatment of stage I hepatocellular carcinoma

Cancer ◽  
2021 ◽  
Author(s):  
Linh M. Duong ◽  
Hui Cai ◽  
Martha J. Shrubsole ◽  
Christina E. Bailey ◽  
Kamran Idrees ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Liver Surgery ◽  
Stage I ◽  
Laparoscopic Liver Surgery ◽  
Robotic Assisted

scholarly journals Tumor visualization and fluorescence angiography with indocyanine green (ICG) in laparoscopic and robotic hepatobiliary surgery – valuation of early adopters from Germany

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mareike Franz ◽  
Jörg Arend ◽  
Stefanie Wolff ◽  
Aristotelis Perrakis ◽  
Mirhasan Rahimli ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Indocyanine Green ◽  
Liver Surgery ◽  
False Positive ◽  
Bile Ducts ◽  
Liver Tumors ◽  
Fluorescence Angiography ◽  
Early Adopters ◽  
Robotic Assisted ◽  
Minimally Invasive Liver Surgery

Abstract Objectives Indocyanine green (ICG) is a fluorescent dye which was initially used for liver functional assessment. Moreover, it is of value for intraoperative visualization of liver segments and bile ducts or primary and secondary liver tumors. Especially in minimally invasive liver surgery, this is essential to enhance the precision of anatomical guided surgery and oncological quality. As early adopters of ICG implementation into laparoscopic and robotic-assisted liver surgery in Germany, we summarize the current recommendations and share our experiences. Methods Actual strategies for ICG application in minimally invasive liver surgery were evaluated and summarized during a review of the literature. Experiences in patients who underwent laparoscopic or robotic-assisted liver surgery with intraoperative ICG staining between 2018 and 2020 from the Magdeburg registry for minimally invasive liver surgery (MD-MILS) were evaluated and the data were analyzed retrospectively. Results ICG can be used to identify anatomical liver segments by fluorescence angiography via direct or indirect tissue staining. Fluorescence cholangiography visualizes the intra- and extrahepatic bile ducts. Primary and secondary liver tumors can be identified with a sensitivity of 69–100%. For this 0.5 mg/kg body weight ICG must be applicated intravenously 2–14 days prior to surgery. Within the MD-MILS we identified 18 patients which received ICG for intraoperative tumor staining of hepatocellular carcinoma (HCC), cholangiocarcinoma, peritoneal HCC metastases, adenoma, or colorectal liver metastases. The sensitivity for tumor staining was 100%. In 27.8% additional liver tumors were identified by ICG fluorescence. In 39% a false positive signal could be detected. This occurred mainly in cirrhotic livers. Conclusions ICG staining is a simple and useful tool to assess individual hepatic anatomy or to detect tumors during minimally invasive liver surgery. It may enhance surgical precision and improve oncological quality. False-positive detection rates of liver tumors can be reduced by respecting the tumor entity and liver functional impairments.

scholarly journals Mérföldkövek a máj sebészetében

2018 ◽  
Vol 159 (10) ◽  
pp. 375-383
Author(s):  
Ferenc Jakab
Keyword(s):  
Liver Surgery ◽  
Common Ground ◽  
Rapid Development ◽  
Operating Time ◽  
Point Of View ◽  
Long Term Results ◽  
Comprehensive Complication Index ◽  
Oncologic Surgery ◽  
Robotic Liver Surgery

Abstract: Numerous outstanding summarizing publications on the milestones of the rapid development of liver surgery in the twentieth century came to light around the year 2000, therefore in this summary only the newest principles and novelties of liver surgery after the second millennium are presented. Among the new principles, the newest indications, the bloodless surgery and the vascular exclusion of the liver, the “associating liver partition and portal vein occlusion for staged hepatectomy” (ALPPS) – as presently the fastest and most successful method for liver regeneration, and the “downsizing of tumors” treatment for the interest of resection of unresectable tumours are analyzed and evaluated. Open, laparoscopic, and robotic liver surgery are discussed by comparing blood loss, operating time, cost, and long-term results. Laparoscopic liver surgery on the basis of evidences has become “the method of choice” in our days. Robotic liver surgery needs further evidence-based data for determination of its place in the clinical practice. An intention is also composed in terms of place-determination of liver surgery between gastrointestinal, hepatopancreatobiliary, liver transplantation, and oncologic surgery. The mortality rate has decreased to 1% recently; the data regarding morbidity are variable; the modified Clavien–Dindo, the modified Accordion complication system and the comprehensive complication index are intended to move the different evaluations to a common ground. The up-to-date idea of hepatic surgeon, liver center and liver surgery are defined in close cooperation with international theoretical and practical outcome, in the limelight of multidisciplinarity and multimodality. The internationally observed inequalities in liver surgery are also discussed from the point of view of tackling with the inequalities existing in the universal healthcare systems on a local, national and global level by collecting and controlling the results systematically, and developing and implying international guidelines on the basis of evidences. Orv Hetil. 2018; 159(10): 375–383.

scholarly journals A falciform ligament flap surface sealing technique for laparoscopic and robotic-assisted liver surgery

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Rahimli ◽  
A. Perrakis ◽  
V. Schellerer ◽  
M. Andric ◽  
J. Stockheim ◽  
...  
Keyword(s):  
Liver Surgery ◽  
Falciform Ligament ◽  
Robotic Assisted ◽  
Surface Sealing

The Geosciences Applied to Lunar Exploration

1962 ◽  
Vol 14 ◽  
pp. 169-257 ◽  
Author(s):  
J. Green
Keyword(s):  
Lunar Surface ◽  
Probable Mechanism ◽  
Point Of View ◽  
Lunar Exploration ◽  
Geological Model ◽  
Apply Geophysics ◽  
Surface Features ◽  
The Impact

The term geo-sciences has been used here to include the disciplines geology, geophysics and geochemistry. However, in order to apply geophysics and geochemistry effectively one must begin with a geological model. Therefore, the science of geology should be used as the basis for lunar exploration. From an astronomical point of view, a lunar terrain heavily impacted with meteors appears the more reasonable; although from a geological standpoint, volcanism seems the more probable mechanism. A surface liberally marked with volcanic features has been advocated by such geologists as Bülow, Dana, Suess, von Wolff, Shaler, Spurr, and Kuno. In this paper, both the impact and volcanic hypotheses are considered in the application of the geo-sciences to manned lunar exploration. However, more emphasis is placed on the volcanic, or more correctly the defluidization, hypothesis to account for lunar surface features.

How a sheperd guides a sheep herd?

1984 ◽  
Vol 75 ◽  
pp. 331-337
Author(s):  
Richard Greenberg
Keyword(s):  
Point Of View ◽  
Single Ring ◽  
Damping Effects ◽  
Ring Particle

ABSTRACTThe mechanism by which a shepherd satellite exerts a confining torque on a ring is considered from the point of view of a single ring particle. It is still not clear how one might most meaningfully include damping effects and other collisional processes into this type of approach to the problem.

The growth of mica polytypes as studied by conventional and high-resolution TEM

1983 ◽  
Vol 41 ◽  
pp. 174-177
Author(s):  
A. Baronnet ◽  
M. Amouric
Keyword(s):  
Water Pressure ◽  
Point Of View ◽  
Temperature Fields ◽  
Natural Occurrence ◽  
Growth Mechanisms ◽  
Long Period ◽  
High Resolution Tem ◽  
Layer Stacking ◽  
Experimental Works ◽  
Potential Use

The origin of mica polytypes has long been a challenging problem for crystal- lographers, mineralogists and petrologists. From the petrological point of view, interest in this field arose from the potential use of layer stacking data to furnish further informations about equilibrium and/or kinetic conditions prevailing during the crystallization of the widespread mica-bearing rocks. From the compilation of previous experimental works dealing with the occurrence domains of the various mica "polymorphs" (1Mr, 1M, 2M1, 2M2 and 3T) within water-pressure vs temperature fields, it became clear that most of these modifications should be considered as metastable for a fixed mica species. Furthermore, the natural occurrence of long-period (or complex) polytypes could not be accounted for by phase considerations. This highlighted the need of a more detailed kinetic approach of the problem and, in particular, of the role growth mechanisms of basal faces could play in this crystallographic phenomenon.

Radiation Damage in Ceramics

1982 ◽  
Vol 40 ◽  
pp. 600-603
Author(s):  
T. E. Mitchell ◽  
M. R. Pascucci ◽  
R. A. Youngman
Keyword(s):  
Radiation Damage ◽  
Outer Space ◽  
Point Of View ◽  
Nuclear Waste Storage ◽  
Waste Storage ◽  
Storage Media ◽  
Transmission Electron ◽  
Fundamental Point ◽  
Small Defect ◽  
Present Understanding

1. Introduction. Studies of radiation damage in ceramics are of interest not only from a fundamental point of view but also because it is important to understand the behavior of ceramics in various practical radiation enyironments- fission and fusion reactors, nuclear waste storage media, ion-implantation devices, outer space, etc. A great deal of work has been done on the spectroscopy of point defects and small defect clusters in ceramics, but relatively little has been performed on defect agglomeration using transmission electron microscopy (TEM) in the same kind of detail that has been so successful in metals. This article will assess our present understanding of radiation damage in ceramics with illustrations using results obtained from the authors' work.

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