Oren Weiss

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BACKGROUND Robotic aid in minimally invasive surgery (MIS) is becoming more and more common. We designed an experimental trial in a phantom model to verify the feasibility of solo surgery for MIS. By performing laparoscopic cholecystectomy on a phantom model, we compared combinations of different systems available in terms of safety, comfort, and time(More)
BACKGROUND The aim of this case-control study was to investigate the clinical regeneration of deep intrabony defects using guided tissue regeneration (GTR) with autogenous spongiosa (ASB) alone or using GTR with a mixture of ASB with a bovine-derived xenograft (BDX) or a synthetic composite bone substitute (hydroxyapatite/beta-tricalcium phosphate(More)
BACKGROUND The perivascular axillary plexus block is an easily applicable procedure with a low risk of complications but with a high failure rate. To improve this, the standard procedure was combined with transpectoral sonography to benefit from the advantages of ultrasound, while using a nearly unchanged puncture technique. METHOD The technique developed(More)
The actual situation regarding the education für MIS requires the optimisation and standardisation of the training system. This paper presents the results of an inquiry about the evaluation of the course of operative laparoscopy. 80-90% of those interviewed made the comments "very good" and "good", with regard to the imparting of the theoretic foundation of(More)
Aggressive periodontitis is characterized by rapid attachment and bone loss with no underlying systemic disease and is associated with specific bacteria like Actinobacillus actinomycetemcomitans (Aa) and Porphyromonas gingivalis (Pg). In this case series 25 patients were diagnosed with aggressive periodontitis by the aid of DNA probes for Aa and Pg and(More)
Laparoscopic surgery for colon cancer is associated with improved recovery and similar cancer outcomes at 3 and 5 years in comparison with open surgery. However, long-term survival rates have rarely been reported. Here, we present survival and recurrence rates of the Dutch patients included in the COlon cancer Laparoscopic or Open Resection (COLOR) trial at(More)
The values of the per cent 24 h radioiodine uptake in the GDR are above 60--70% and speak for a low alimentary intake of iodine or renal excretion of iodine below 40 micrograms J/d. Like the struma prevalences they show a tendency increasing from north to south and characterize the whole European situation of iodine deficiency including its decrease from(More)
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