EXPERIMENTAL EVALUATION OF THE EFFECTIVENESS OF THE ANTI-ADHESIVE COATING MADE OF CELLULOSE DERIVATIVES ON THE MODEL OF ADHESION FORMATION IN THE ABDOMINAL CAVITY

2021 ◽  
Vol Special issue (2) ◽  
pp. 34-44
Author(s):  
Saidimurad Ismailov ◽  
◽  
Azam Babadjanov ◽  
Gafur Orazaliev ◽  
Muhammad Dusiyarov ◽  
...  

Purpose:to study the effectiveness of the application of the anti-adhesive coating "Heprocel" from cellulose derivatives in an experimental model of the formation of an adhesive process in the abdominal cavity

2019 ◽  
Vol 90 (3) ◽  
pp. e17.3-e16
Author(s):  
D Akarca ◽  
A Durnford ◽  
F Ewbank ◽  
J Hempenstall ◽  
A Sadek ◽  
...  

ObjectivesExternal ventricular drain (EVD) dislodgement is common and can lead to significant morbidity and mortality. UK trial data suggests dislodgement as high as 12%. This study aimed to establish the range of methods used nationally and determine the most secure method in a porcine model.DesignSurvey and experimental study.Subjects23 neurosurgical units surveyed. Porcine cadaver experimental model.MethodsSurvey distribution was made through the British Neurosurgical Trainee Research Collaborative. 15 securement methods were tested on the porcine model and peak pull-out force before EVD failure was measured. Failure was defined as catheter displacement 1 cm from the insertion site, catheter fracture or suture fracture.ResultsNationally, five EVD securement methods were in common use. There were considerable differences in peak pull-out force between methods. The most secure methods were a construct consisting of anchoring suture, further multiple sutures around a coil of catheter followed by either a soft (25.85N, 95% CI 24.95 N-26.75N) or hard plastic flange (29.05N, 95% CI 25.69 N-32.41N). Individually, anchoring sutures, soft flanges, VentriFix and staples were least secure, whilst multiple sutures and hard flanges were most secure.ConclusionsAn anchoring suture followed by a coil of catheter and a flange is the most secure method for securing EVDs, withstanding up to 8.2 times the force of a single anchoring suture. It is easily employed and may decrease the likelihood of EVD dislodgement and associated complications.


2011 ◽  
Vol 95 (4) ◽  
pp. 1224-1228 ◽  
Author(s):  
Roberta Corona ◽  
Jasper Verguts ◽  
Ron Schonman ◽  
Maria Mercedes Binda ◽  
Karina Mailova ◽  
...  

1984 ◽  
Vol 16 (2) ◽  
pp. 131-135 ◽  
Author(s):  
A. Kaplun ◽  
B. Griffel ◽  
B. Halperin ◽  
M. Aronson

2010 ◽  
Vol 17 (4) ◽  
pp. 38-44
Author(s):  
S P Mironov ◽  
A L Gintsburg ◽  
N A Es'kin ◽  
V G Lunin ◽  
N S Gavryushenko ◽  
...  

Data on experimental evaluation of osteoinduction of recombinant bone morphogenic protein of native production fixative on xenogenic demineralizated bone matrix or collagen-calcium-phosphate biocomposite material. Evaluation was performed using experimental model of end-to-end osteosynthesis of diaphyseal femur fragments by external fixative device in Wistar rats. Roentgenologic examination, study of autopsy material and evaluation of bone consolidation strength using biomechanical twisting test showed high osteoinduction of rhBMP-2 containing biocomposites.


2021 ◽  
Vol 11 (4) ◽  
pp. 446-450
Author(s):  
Irina Shurygina ◽  
Lyubov Rodionova ◽  
Natalia Ayushinova ◽  
Elena Chepurnykh ◽  
Irina Trukhan ◽  
...  

Background: The aim of this study was to assess the effect of blockade of the p38 mitogen-activated protein kinase (MAPK) on the expression of genes encoding metalloproteinases (MMPs) during the formation of adhesions in the abdominal cavity. Methods and Results: The experiments were carried out on male Wistar rats (n=75). The studies were carried out in two groups: Group 1 (control, n=35) – modelling the adhesive process; Group 2 (experimental, n=35) – modelling the adhesive process with intraperitoneal administration of Seroguard®—a prolonged form of the p38 MAPK inhibitor. The expression of the MMP1a, MMP2, MMP7, MMP9, and TIMP genes was assessed using real-time PCR. In the control group, overexpression of the MMP1a and MMP7 genes began from 6 hours after modeling the adhesive process, MMP9 – from Day 1, MMP2 – from Day 7 and persisted until the end of observation. With local blockade of p38 MAPK, the level of overexpression of genes encoding MMPs in the early stages was higher than in the control group (MMP1a – by Day 1; MMP7 – by 6 hours and Day 1, MMP9 – by 12 hours). From Day 3 to Day 14, the MMP1a and MMP7 expression in the experimental group was significantly lower than in the control group. Conclusion: The performed study demonstrated the involvement of different types of MMPs—collagenases (MMP1a), gelatinases (MMP2 and 9), matrilysins (MMP7)—in the rearrangement of the extracellular matrix during the process of adhesion formation in the abdominal cavity.


2005 ◽  
Vol 54 (5S) ◽  
pp. 28-29
Author(s):  
A. A. Popov ◽  
T. N. Manannikova ◽  
О. G. Kirushkina ◽  
N. А. Chausova ◽  
Е. Yu. Gluchov

Introduction. Adhesion formation in abdominal cavity is one of the leading disease. Adhesion formation after pelvic surgery is the cause of ileus, sterility and chronic pelvic pain. There is no foolproof method to prevent the adhesion constitution. There are some recommendations in the literature to prevent this process: to use crystalloids and colloids after basic operative stage, dosing irrigation the cavity with isotonic solution sodium chloride with heparin, administration of the glucocorticoid.


2008 ◽  
Vol 53 (No. 1) ◽  
pp. 12-28 ◽  
Author(s):  
J. Mezerova ◽  
Z. Zert ◽  
R. Kabes ◽  
L. Ottova

Out of the total number of 434 horses that underwent colic surgery, small intestine was operated in 195 (44.9%) patients, caecum in 10 (2.3%) horses, large colon surgery was performed in 196 (45.2%) cases and small colon surgery in 14 (3.2%) horses. In 12 patients (2.8%) two different parts of the gastrointestinal tract were affected simultaneously, one horse suffered from peritonitis, torsion of the uterus developed in two mares and three animals had negative surgical findings. Of 434 horses, 371 (85.5%) survived. After small intestinal surgery, 159 patients (81.5%) recovered from anaesthesia and were discharged home as well as seven horses (70%) after caecal surgery, 175 horses (89.3%) after large colon surgery and 14 horses (100%) following small colon surgery. 75 out of 103 horses (72.8%) were discharged home after the small intestinal resection and 89 of 98 horses (90.8%) with small intestinal problems where no resection was needed. In total, 43 of the patients that underwent one surgery did not survive the immediate postoperative period. The most frequent lethal complications in horses following the small intestinal surgery included peritonitis (five horses) and paralytic ileus (four horses) and in horses with large colon problems it was typhlocolitis (six cases). Relaparotomy was indicated in 41 of 434 horses (9.4%) that recovered from colic surgery. 21 out of the 41 (51.2%) relaparotomised colic patients were released from the clinic. All successfully repeated surgeries were carried out to overcome primary small intestine ileus problems, and in 14 of these cases (66.7%) resection and anastomosis were performed. The most common finding, diagnosed in 9 of 21 reoperated horses, was paralytic ileus. Of 20 relaparotomised horses that did not survive, three animals were lost after the introduction of anaesthesia, nine horses were euthanised after the abdominal cavity revision, one horse did not recover after the surgical procedure and seven horses did not survive the postoperative period. In 15 of 20 dead horses, the cause of the first surgical intervention was small intestinal ileus, in other four horses there was a large colon problem and in the last patient, it was a stomach disease. In 13 of 15 (86.7%) horses with small intestinal problems and in three of four (75%) patients with large colon disease, either resection or bypass was performed. In the remaining four non-surviving horses of 20 relaparotomised ones, peritonitis and/or adhesion formation was diagnosed at the second surgery, in three horses anastomosis complications were the main problem. Peritonitis or paralytic ileus led to death or euthanasia in four of seven horses that recovered after relaparotomy.


Author(s):  
Leonardo Carvalho SERIGIOLLE ◽  
Renato Lamounier BARBIERI ◽  
Helbert Minuncio Pereira GOMES ◽  
Daren Athiê Boy RODRIGUES ◽  
Sarah do Valle STUDART ◽  
...  

Background: Adhesions induced by biomaterials experimentally implanted in the abdominal cavity are basically studied by primary repair of different abdominal wall defects or by the correction of incisional hernias previously performed with no precise definition of the most appropriate model. Aim: To describe the adhesions which occur after the development of incisional hernias, before the prosthesis implantation, in an experimental model to study the changes induced by different meshes. Methods: Incisional hernias were performed in 10 rats with hernia orifices of standardized dimensions, obtained by the median incision of the abdominal wall and eversion of the defect edges. Ten days after the procedure adhesions of abdominal structures were found when hernias were repaired with different meshes. Results: The results showed hernia sac well defined in all rats ten days after the initial procedure. Adhesions of the greater omentum occurred in five animals of which two also showed adhesions of small bowel loops besides the omentum, and another two showed liver adhesions as well as the greater omentum, numbers with statistical significance by Student's t test (p<0.05). Conclusion: Although it reproduces the real clinical situation, the choice of experimental model of incisional hernia repair previously induced implies important adhesions, with possible repercussions in the evaluation of the second operation, when different implants of synthetic materials are used.


1995 ◽  
Vol 10 (9) ◽  
pp. 2290-2294 ◽  
Author(s):  
G. Bigatti ◽  
W. Boeckx ◽  
L. Gruft ◽  
N. Segers ◽  
I. Brosens

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