Comparison of a New High-Frequency Electric Welding System for Intestinal Closure with Hand-Sewn<i>In Vivo</i>Pig Model

Han, Shuai; Cai, Zhai; Ning, Xuanjing; Li, He; Huang, Zong-hai; Zhou, Huabin; Huang, Dequn; Zhang, Pusheng; Zhou, Li

doi:10.1089/lap.2015.0101

Cited by 10 publications

(8 citation statements)

References 15 publications

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“…Anastomotic leakage is a severe postoperative complication that may lead to diffuse peritonitis, sepsis, and even life-threatening conditions ( 37 , 39 ). Studies, including techniques, materials, and perioperative care have aimed to improve the outcome of intestinal anastomosis ( 20 , 31 , 40 , 41 ).…”

Section: Discussionmentioning

confidence: 99%

An alternative asymmetric figure-of-eight single-layer suture technique for bowel anastomosis in an in vitro porcine model

et al. 2022

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Anastomotic techniques are of vital importance in restoring gastrointestinal continuity after resection. An alternative asymmetric figure-of-eight single-layer suture anastomotic technique was introduced and its effects were evaluated in an in vitro porcine model. Twelve 15-cm grossly healthy small intestine segments from a porcine cadaver were harvested and randomly divided into asymmetric figure-of-eight single-layer suture (figure-of-eight suture) and single-layer interrupted suture technique (interrupted suture) groups (n = 6 in each group). The anastomosed bowel was infused with methylene blue solution to test anastomotic leakage. Anastomosis construction time, leakage, and suture material cost were recorded and analyzed statistically using Fisher's exact test and Student's t-test. One anastomotic leakage occurred (16.67%) in the figure-of-eight suture group, and two (33.33%) in the interrupted suture group (p > 0.9999). The anastomosis construction time was relatively short in the figure-of-eight suture group, but the difference did not reach a statistically significant level between the two groups. The mean number of suture knots and the cost of suture material in the figure-of-eight suture group were significantly decreased in comparison to the interrupted suture group (15.67 ± 3.30 vs. 22.17 ± 2.03, 167.11 ± 35.20 vs. 236.45 ± 21.70 CNY, p < 0.01, respectively). Our results suggested that the alternative asymmetric figure-of-eight suture technique was safe and economic for intestinal anastomosis. An in vivo experiment is required to elucidate the effects of this suture technique on the physiological anastomotic healing process.

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Section: Discussionmentioning

confidence: 99%

An alternative asymmetric figure-of-eight single-layer suture technique for bowel anastomosis in an in vitro porcine model

et al. 2022

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“…This technique is currently used and improved in many countries around the world, such as the United States of America, China, France, Great Britain and others. The interest of surgeons is explained by the fact that due to the tissuepreserving effects of the energy on the operated organ, there is an insignificant destructive effect on the living tissue, which allows for simultaneous incision and coagulation with almost no damage to the morphological structure of the tissue (Han et al;Muzychenko et al;Savolyuk et al 2020). However, many parameters of the use of welding in biological tissues in abdominal, vascular and other types of surgery remain unclear.…”

Section: Arterial and Venous Vein Endto-artery Sideweldingmentioning

confidence: 99%

“…In the past 15-20 years, high frequency electrocoagulation or "electric welding" of biological tissues has become one of the promising surgical techniques (Han et al, 2015;Podpriatov et al, 2018). Electric welding has gained a strong position in medicine due to its tissuepreserving effect and insignificant destructive effects on the living tissues, which allows for simultaneous incision and coagulation practically without any damage to the tissue morphological structure (Marinsky et al, 2016;Muzychenko et al, 2016;Marinsky et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Morphological Assessment of Vascular Anastomoses Performed Using High Frequency Electric Welding

et al. 2021

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The studies of the properties of vascular structures and tissues during electric welding, in particular direct morphological changes in the blood vessel walls in the areas of welding processes, are of interest. Perforating veins, femoral veins, abdominal aorta, vena cava and porcine perforating veins of the limbs were used in this study. We performed end-to-end electric welding of the aorta, venous end-to-side electric welding, vein end-to-artery side arterial and venous welding, venous end-to-end electric welding, as well as arterial and venous lumen sealing.The results of histological studies showed the formation of a coagulated acellular protein matrix, represented by unorganized denatured protein fibrous structures. In the area of vascular tissue coagulation, lacunes were formed as a result of water evaporation from the biological tissue. In the perifocal area of the welded junction, cell reduction occurred without necrosis or charring. The data obtained confirm the safety of high frequency electric welding of the main vessels and the prospectfor clinical use of the studied techniques.

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“…The method of a bipolar high-frequency welding (HFEW) of soft living tissues of animals and humans has been used in various areas of surgery [ 5 – 9 ]. The method is based on measurement of tissue impedance to accurately control the degree of coagulation and, unlike conventional bipolar coagulation technique, allows avoidance of over-heating and burning of the exposure area, sticking of the electrodes to the tissue, and the production of smoke [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Safety analysis of endoscopic haemostasis using a high-frequency live tissue electric welding device – EKVZ300 PATONMED

Tryliskyy¹,

Кебкало²,

Wong³

et al. 2018

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IntroductionThe method of a bipolar high-frequency welding (HFEW) of soft living tissues of animals and humans has been used in various areas of surgery. However, it has not been utilized in endoscopic gastrointestinal procedures yet. HFEW has strong potential to be used in gastrointestinal endoscopic procedures due to the competitive cost of generator devices and due to its proven ability to coagulate vessels of wide diameter as compared to standard electrocautery devices.AimTo investigate the effectiveness of the endoscopic haemostasis using HFEW generator device – 300 PATONMED – in a porcine model of arterial gastrointestinal bleeding.Material and methodsA porcine model of arterial gastrointestinal bleeding was created. A 300 PATONMED set to the “welding” regime and a flexible 7 Fr bipolar coagulation probe with two electrodes on the tip fashioned spirally attached to convey energy were tested. Once bleeding from the artery had been initiated, the bipolar probe was applied to coagulate the bleeding site. Animals were observed for clinical evidence of recurrent bleeding and subsequently were euthanised for histological examination.ResultsA total of 10 experiments were successfully completed. An optimal haemostatic effect was achieved with durations of cautery of five to eight seconds in all animals. Continuous observation after haemostasis revealed no evidence of re-bleeding. No systemic side-effects of the technique were observed. Histological examination has shown that the peripheral thermal injury area that surrounded the coagulation zone did not spread beyond the mucosal layer in depth and 2 mm in width.ConclusionsThis animal study provided evidence for the safety of an HFEW in the treatment of gastrointestinal bleeding. The advantages of this technology are smokeless operative area, no tissue overheating, minimal necrosis and damage to surrounding gastric tissue, and the fact that the area of HFEW is confined to the area of the electrodes.

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Comparison of a New High-Frequency Electric Welding System for Intestinal Closure with Hand-SewnIn VivoPig Model

Abstract: Outcomes of the current in vivo study suggest that HFEW is an effective and safe method for ligation of the small bowel in pigs.

Cited by 10 publications

References 15 publications

An alternative asymmetric figure-of-eight single-layer suture technique for bowel anastomosis in an in vitro porcine model

An alternative asymmetric figure-of-eight single-layer suture technique for bowel anastomosis in an in vitro porcine model

Morphological Assessment of Vascular Anastomoses Performed Using High Frequency Electric Welding

Safety analysis of endoscopic haemostasis using a high-frequency live tissue electric welding device – EKVZ300 PATONMED

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