Gingiva Laser Welding: Preliminary Study on an Ex Vivo Porcine Model

2014 ◽  
Vol 32 (8) ◽  
pp. 437-443 ◽  
Author(s):  
Emilia Rasca ◽  
Catherine Nyssen-Behets ◽  
Marc Tielemans ◽  
André Peremans ◽  
Nordine Hendaoui ◽  
...  
Keyword(s):  
Laser Welding ◽  
Porcine Model ◽  
Ex Vivo ◽  
Preliminary Study

Preliminary study of an ex vivo porcine model of gingiva laser tissue welding

2012 ◽  
pp. S29-.
Author(s):  
E Rasca ◽  
M Tielemans ◽  
C Nyssen-Behets ◽  
D Heysselaer ◽  
M Hadeiba ◽  
...  
Keyword(s):  
Porcine Model ◽  
Ex Vivo ◽  
Tissue Welding ◽  
Preliminary Study ◽  
Laser Tissue Welding

Preliminary study of laser welding for aortic dissection in a porcine model using a diode laser with indocyanine green

2003 ◽  
Vol 32 (5) ◽  
pp. 341-345 ◽  
Author(s):  
Masanori Fujita ◽  
Yuji Morimoto ◽  
Sayaka Ohmori ◽  
Noriko Usami ◽  
Tsunenori Arai ◽  
...  
Keyword(s):  
Aortic Dissection ◽  
Laser Welding ◽  
Indocyanine Green ◽  
Diode Laser ◽  
Porcine Model ◽  
Preliminary Study

Differential Outcomes for Long Term ex vivo Lung Perfusion in a Porcine Model - With or without Red Cells?

2015 ◽  
Vol 63 (S 01) ◽  
Author(s):  
W. Sommer ◽  
M. Avsar ◽  
J. Salman ◽  
C. Kühn ◽  
I. Tudorache ◽  
...  
Keyword(s):  
Porcine Model ◽  
Ex Vivo ◽  
Lung Perfusion ◽  
Red Cells ◽  
Ex Vivo Lung Perfusion ◽  
Differential Outcomes

scholarly journals Robotic-assisted cholecystectomy is superior to laparoscopic cholecystectomy in the initial training for surgical novices in an ex vivo porcine model: a randomized crossover study

2021 ◽  
Author(s):  
E. Willuth ◽  
S. F. Hardon ◽  
F. Lang ◽  
C. M. Haney ◽  
E. A. Felinska ◽  
...  
Keyword(s):  
Laparoscopic Cholecystectomy ◽  
Crossover Study ◽  
Porcine Model ◽  
Haptic Feedback ◽  
Ex Vivo ◽  
Operating Time ◽  
Surgical Performance ◽  
Robotic Assisted ◽  
Subjective Workload ◽  
Randomized Crossover Study

Abstract Background Robotic-assisted surgery (RAS) potentially reduces workload and shortens the surgical learning curve compared to conventional laparoscopy (CL). The present study aimed to compare robotic-assisted cholecystectomy (RAC) to laparoscopic cholecystectomy (LC) in the initial learning phase for novices. Methods In a randomized crossover study, medical students (n = 40) in their clinical years performed both LC and RAC on a cadaveric porcine model. After standardized instructions and basic skill training, group 1 started with RAC and then performed LC, while group 2 started with LC and then performed RAC. The primary endpoint was surgical performance measured with Objective Structured Assessment of Technical Skills (OSATS) score, secondary endpoints included operating time, complications (liver damage, gallbladder perforations, vessel damage), force applied to tissue, and subjective workload assessment. Results Surgical performance was better for RAC than for LC for total OSATS (RAC = 77.4 ± 7.9 vs. LC = 73.8 ± 9.4; p = 0.025, global OSATS (RAC = 27.2 ± 1.0 vs. LC = 26.5 ± 1.6; p = 0.012, and task specific OSATS score (RAC = 50.5 ± 7.5 vs. LC = 47.1 ± 8.5; p = 0.037). There were less complications with RAC than with LC (10 (25.6%) vs. 26 (65.0%), p = 0.006) but no difference in operating times (RAC = 77.0 ± 15.3 vs. LC = 75.5 ± 15.3 min; p = 0.517). Force applied to tissue was similar. Students found RAC less physical demanding and less frustrating than LC. Conclusions Novices performed their first cholecystectomies with better performance and less complications with RAS than with CL, while operating time showed no differences. Students perceived less subjective workload for RAS than for CL. Unlike our expectations, the lack of haptic feedback on the robotic system did not lead to higher force application during RAC than LC and did not increase tissue damage. These results show potential advantages for RAS over CL for surgical novices while performing their first RAC and LC using an ex vivo cadaveric porcine model. Registration number researchregistry6029 Graphic abstract

scholarly journals Development of a gel dedicated to gel immersion endoscopy

2021 ◽  
Vol 09 (06) ◽  
pp. E918-E924
Author(s):  
Tomonori Yano ◽  
Atsushi Ohata ◽  
Yuji Hiraki ◽  
Makoto Tanaka ◽  
Satoshi Shinozaki ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Porcine Model ◽  
Ex Vivo ◽  
In Vitro Experiments ◽  
Efficacy And Safety ◽  
Coagulative Necrosis ◽  
Novel Technique ◽  
In Vivo Experiments

Abstract Backgrounds and study aims Gel immersion endoscopy is a novel technique to secure the visual field during endoscopy. The aim of this study was to develop a dedicated gel for this technique. Methods To identify appropriate viscoelasticity and electrical conductivity, various gels were examined. Based on these results, the dedicated gel “OPF-203” was developed. Efficacy and safety of OPF-203 were evaluated in a porcine model. Results  In vitro experiments showed that a viscosity of 230 to 1900 mPa·s, loss tangent (tanδ) ≤ 0.6, and hardness of 240 to 540 N/cm2 were suitable. Ex vivo experiments showed electrical conductivity ≤ 220 μS/cm is appropriate. In vivo experiments using gastrointestinal bleeding showed that OPF-203 provided clear visualization compared to water. After electrocoagulation of gastric mucosa in OPF-203, severe coagulative necrosis was not observed in the muscularis but limited to the mucosa. Conclusions OPF-203 is useful for gel immersion endoscopy.

scholarly journals Lowering Perfusate Temperature From 37°C to 32°C Diminishes Function in a Porcine Model of Ex Vivo Kidney Perfusion

2017 ◽  
Vol 3 (3) ◽  
pp. e140 ◽  
Author(s):  
Thomas D. Adams ◽  
Meeta Patel ◽  
Sarah A. Hosgood ◽  
Michael L. Nicholson
Keyword(s):  
Porcine Model ◽  
Ex Vivo ◽  
Kidney Perfusion

Description of a new, endoscopic technique to remove the over-the-scope-clip in an ex vivo porcine model (with video)

2012 ◽  
Vol 76 (5) ◽  
pp. 1009-1013 ◽  
Author(s):  
Helmut Neumann ◽  
Hiwot Diebel ◽  
Klaus Mönkemüller ◽  
Andreas Nägel ◽  
Dane Wildner ◽  
...  
Keyword(s):  
Porcine Model ◽  
Ex Vivo ◽  
Endoscopic Technique ◽  
Over The Scope Clip

Probiotic supplement consumption alters cytokine production from peripheral blood mononuclear cells: a preliminary study using healthy individuals

2013 ◽  
Vol 4 (4) ◽  
pp. 313-317 ◽  
Author(s):  
N.J. Hepburn ◽  
I. Garaiova ◽  
E.A. Williams ◽  
D.R. Michael ◽  
S. Plummer
Keyword(s):  
Peripheral Blood Mononuclear Cells ◽  
Peripheral Blood ◽  
Mononuclear Cells ◽  
Cytokine Production ◽  
Ex Vivo ◽  
Healthy Individuals ◽  
Probiotic Supplementation ◽  
Peripheral Blood Mononuclear ◽  
Blood Mononuclear Cells ◽  
Preliminary Study

The objective of this study was to examine the effect of daily probiotic supplementation upon the immune profile of healthy participants by the assessment of ex vivo cytokine production. Twenty healthy adult volunteers received a multi-strain probiotic supplement consisting of two strains of Lactobacillus acidophilus (CUL60 and CUL21), Bifidobacterium lactis (CUL34) and Bifidobacterium bifidum (CUL20) and fructooligosaccharide for 12 weeks. Blood samples were collected at baseline, 6 and 12 weeks. Peripheral blood mononuclear cells (PBMCs) were isolated and cultured ex vivo in the presence or absence of lipopolysaccharide and cytokine production was assessed. Postintervention, a significant decrease in the production of interleukin-6 and interleukin-1β was apparent when PBMCs were incubated in the presence of lipopolysaccharide, whilst a significant increase in IL-10 and transforning growth factor-β production was seen when the cells were incubated without an additional stimulus. This preliminary study demonstrates the potential of a multi-strain probiotic supplement to alter the immune response as demonstrated by changes in ex vivo cytokine production. Such results demonstrate the potential benefit of probiotic supplementation for healthy individuals and warrants further investigation.

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