scholarly journals Collagen, fibrinogen and thrombin biological addesive is effective in treating experimental liver injuries

2016 ◽  
Vol 43 (4) ◽  
pp. 254-261 ◽  
Author(s):  
FREDERICO MICHELINO DE OLIVEIRA ◽  
MARCUS VINÍCIUS H. DE CARVALHO ◽  
EVALDO MARCHI ◽  
CLÓVIS ANTÔNIO LOPES PINTO
Keyword(s):  
Lower Incidence ◽  
Hepatic Injury ◽  
Traumatic Injury ◽  
Absorbable Suture ◽  
Adhesive Material ◽  
Histological Changes ◽  
Liver Injuries ◽  
Group A ◽  
Group B ◽  
Experimental Liver

ABSTRACT Objective : to evaluate the effectiveness of a collagen-based adhesive associated with fibrinogen and thrombin in experimental liver injury in rats. Methods : the study included 30 Wistar rats randomly divided into three groups: A, B and C. All underwent standard liver traumatic injury. In group A the lesion was treated with the adhesive; in group B, with conventional absorbable suture; and in group C, there was no treatment. We analyzed the time of hemostasis, mortality, occurrence of adhesions and any histological changes. Results : there was no statistical difference in relation to mortality (p = 0.5820). The group treated with the adhesive showed the lowest hemostasis times (p = 0.0573, odds ratio 13.5) and lower incidence of adhesions (p = 0.0119). Microscopic histological alterations of Groups A and B were similar, with foreign body granuloma formation separating the adhesive material or the suture from the hepatic stroma. Conclusion : the adhesive of collagen associated with fibrinogen and thrombin was effective in the treatment of experimental hepatic injury, providing a lower incidence of adhesions between the liver and surrounding structures.

scholarly journals The collagen, fibrinogen and thrombin biological adhesive is effective in treating experimental liver injuries

2016 ◽  
Vol 43 (2) ◽  
pp. 110-116 ◽  
Author(s):  
Frederico Michelino de Oliveira ◽  
Marcus Vinícius H. de Carvalho ◽  
Evaldo Marchi ◽  
Clóvis Antônio Lopes Pinto
Keyword(s):  
Lower Incidence ◽  
Traumatic Injury ◽  
Treated Group ◽  
Absorbable Suture ◽  
Liver Injuries ◽  
Suture Group ◽  
Group A ◽  
Biological Adhesive ◽  
Group B ◽  
Experimental Liver

ABSTRACT Objective: to evaluate the effectiveness of an collagen-based adhesive associated with fibrinogen and thrombin in experimental liver injuries in rats. Methods: we randomly divided 30 Wistar rats into three groups: A, B and C. All underwent a standard liver traumatic injury. In group A, the lesion was treated with the adhesive; in group B, with conventional, absorbable suture; group C received no treatment. We analyzed the time of hemostasis, mortality, occurrence of adhesions and any histological changes. Results: there was no statistical difference in relation to mortality (p=0.5820). The adhesive treated group showed the lowest hemostasis times (p=0.0573, odds ratio 13.5) and lower incidence of adhesions (p=0.0119). The histological alterations of the Groups A and B were similar, with foreign body granuloma formation separating the adhesive material and the hepatic stroma suture. Conclusion: the collagen adhesive associated with fibrinogen and thrombin was effective in treating experimental hepatic injury, providing a lower incidence of adhesions between the liver and surrounding structures.

scholarly journals The role of biological adhesive and suture material on rabbit hepatic injury

2006 ◽  
Vol 21 (5) ◽  
pp. 310-314 ◽  
Author(s):  
Murched Omar Taha ◽  
Karen De Rosa ◽  
Djalma José Fagundes
Keyword(s):  
Hepatic Injury ◽  
Biomedical Literature ◽  
Histological Evaluation ◽  
Absorbable Suture ◽  
Fibrin Adhesive ◽  
Hepatic Lobe ◽  
Group A ◽  
Suture Thread ◽  
Biological Adhesive ◽  
Group B

PURPOSE: To evaluate the performance of fibrin adhesive and absorbable suture thread in the repairing of hepatic injures in rabbits. METHODS: New Zealand albino rabbits (n=16), males and females, from 5 to 6 months old, average weight of 2500 g, were distributed randomly in Group A (n-8) - biological adhesive and Group B (n=8) - suture thread. After anesthesia with acepromazine (1mg/Kg), ketamine (50mg/Kg) and fentanyl EV (0,5ml/Kg), it was performed a supra-umbilical median laparotomy, the median hepatic lobe was isolated and subjected to severe standardized incision. In the group B the incision edges were sutured with simple 4-0 catgut, in separated stitches. It was evaluated the total time of the procedure, the hemostasis time and hemorrhage volume. In the 21st post-operative day it was evaluated the presence of adherences and signs of infection in the abdominal cavity, and it was followed by the resection of the median hepatic lobe for the histological evaluation. RESULTS: The calculated mean and standard deviation showed that the procedure time, hemostasis time and bleeding amount were significantly smaller in the group of animals subjected to the use of fibrin adhesive. The surgical abdominal incision was significantly more extensive in the animals of the suture group (average of 6,8 cm) in relation to the adhesive group (average of 3,8), as well as the number of occurrences of abscesses. The adherence of the intestinal ansas to the sutured incision (group B) occurred in five cases and the major omentum adhesion occurred in all animals. In the group A (adhesive) it occurred adherences of the major omentum in three cases. The microscopy of the hepatic incision repaired with the use of fibrin showed that the inflammatory infection is less intense, not associated with the formulation of secretion in the abscesses, and therefore has a more favorable later cicatricial aspect than a conventional suture with surgical thread. CONCLUSION: In agreement with other biomedical literature works, the fibrin adhesive is a viable option for the performance of hemostasis in a animal model (rabbit) with severe hepatic injury.

Absorbable suture material in carotid surgery

VASA ◽  
2015 ◽  
Vol 44 (6) ◽  
pp. 451-457 ◽  
Author(s):  
Vincenzo Gasbarro ◽  
Luca Traina ◽  
Francesco Mascoli ◽  
Vincenzo Coscia ◽  
Gianluca Buffone ◽  
...  
Keyword(s):  
Suture Material ◽  
Absorbable Suture ◽  
Paediatric Surgery ◽  
Carotid Surgery ◽  
Suture Materials ◽  
Absorbable Suture Material ◽  
Absorbable Sutures ◽  
Group A ◽  
Group B

Abstract. Background: Absorbable sutures are not generally accepted by most vascular surgeons for the fear of breakage of the suture line and the risk of aneurysmal formation, except in cases of paediatric surgery or in case of infections. Aim of this study is to provide evidence of safety and efficacy of the use of absorbable suture materials in carotid surgery. Patients and methods: In an 11 year period, 1126 patients (659 male [58.5 %], 467 female [41.5 %], median age 72) underwent carotid endarterectomy for carotid stenosis by either conventional with primary closure (cCEA) or eversion (eCEA) techniques. Patients were randomised into two groups according to the type of suture material used. In Group A, absorbable suture material (polyglycolic acid) was used and in Group B non-absorbable suture material (polypropylene) was used. Primary end-point was to compare severe restenosis and aneurysmal formation rates between the two groups of patients. For statistical analysis only cases with a minimum period of follow-up of 12 months were considered. Results: A total of 868 surgical procedures were considered for data analysis. Median follow-up was 6 years (range 1-10 years). The rate of postoperative complications was better for group A for both cCEA and eCEA procedures: 3.5 % and 2.0 % for group A, respectively, and 11.8 % and 12.9 % for group B, respectively. Conclusions: In carotid surgery, the use of absorbable suture material seems to be safe and effective and with a general lower complications rate compared to the use of non-absorbable materials.

CLINICAL OUTCOME AND COST COMPARISON OF CARPAL TUNNEL WOUND CLOSURE WITH MONOCRYL® AND ETHILON®: A PROSPECTIVE STUDY

Hand Surgery ◽  
2013 ◽  
Vol 18 (02) ◽  
pp. 189-192 ◽  
Author(s):  
Anis Dosani ◽  
Sameer K. Khan ◽  
Sheila Gray ◽  
Steve Joseph ◽  
Ian A. Whittaker
Keyword(s):  
Carpal Tunnel ◽  
Wound Closure ◽  
Unit Cost ◽  
Cost Effective ◽  
Cost Comparison ◽  
Absorbable Suture ◽  
Significant Difference ◽  
Group A ◽  
Group B ◽  
A Prospective Study

This prospective non-randomised two-cohort study compares the use of an absorbable suture (Poliglecrapone [Monocryl]: Group A) and a non-absorbable suture (Polyamide [Ethilon]: Group B) in wound closure after elective carpal tunnel decompression. The primary outcome was scar cosmesis as assessed by the Stonybrook Scar Evaluation Scale (SBSES); the financial cost of wound closure was compared as a secondary outocome. All fifty patients completed follow-up. At six weeks, there was no significant difference in the two groups regarding scar tenderness (p = 0.5), although residual swelling was more evident in the absorbable group (p = 0.2). The mean SBSES score at six weeks was 4.72 in Group A, and 4.8 in Group B (p = 0.3). The unit cost per closed wound of Monocryl was three times than Ethilon (p < 0.05). Ethilon is thus cost-effective without compromising the cosmetic outcome, and we recommend using this as the preferred suture for closure of carpal tunnel wounds.

scholarly journals Histological Changes in the Lung and Liver of Mice Treated with Brake Pad Particles

2019 ◽  
Vol 16 (2) ◽  
pp. 0306
Author(s):  
Ghaidan Et al.
Keyword(s):  
Bronchial Tree ◽  
Mononuclear Leukocytes ◽  
Mitotic Figure ◽  
Central Vein ◽  
Continuous Exposure ◽  
Brake Pad ◽  
Histological Changes ◽  
Histological Sections ◽  
Group A ◽  
Group B

In the present study, the effects of brake pad particles of lung and liver histological sections were evaluated for (60) adult male mice. The animals were divided into three groups ( A,B,C) according to the periods of exposure (4, 8, and 12) weeks respectively exposed to brake pad particles in addition to the control groups (F) exposed to fresh air only. A special inhalation chamber designed locally has been used to expose the animals. The exposure to brake pad particles was (2.228) µg/m³ for 30 min/day, 5 days/week for (4,8and12) weeks respectively. The examination in group (A) of the histological sections of the lung showed the thickness of interalveolar septa.  Also, a congestion of alveolar capillary was marked indicating pulmonary emphysema. The infiltration of alveolar macrophages showed the engulfed foreign particles (pad particles) within their cytoplasm, and peribronchial fibrosis. Group (B) showed the presence of pad particles (anthracosis), whereas the bronchial tree showed bronchitis with the bronchus-hyperplasia of mucin-producing cells (epithelial hyperplasia). Still another section showed an infiltration of mononuclear leukocytes and focal lobar necrosis. The third group (C), in turn, revealed acute interstitial bronchopneumonia with peribronchial focal necrosis and mild pulmonary edema with alveolar anthracosis. As regards the liver, group (A) showed mild central venous congestion. Group (B), on the other hand, gave acute hepatitis, congestion of the central vein hyaline degeneration and mitotic figure having 2-3 nuclei. Severe congestion of the central vein with vascular amyloid deposition and most of the hepatocytes revealed coagulate necrosis in group (C). These changing tissues increased with increasing the exposure periods and were clearer in group (C) which was exposed for 12 weeks. The continuous exposure to brake pad particles lead to damaging important body organs tissues and effect on human health, these particles can be considered as a type of pollutants added to air pollutants in different cities of Iraq.  

scholarly journals MICROSCOPIC CHANGES IN THE LIVER OF DEVELOPING RATS EXPOSED TO VALPRIOC ACID

1969 ◽  
Vol 5 (2) ◽  
pp. 685-688
Author(s):  
MUHAMMAD KHAN ◽  
INAYAT ULLAH ◽  
NAIK ZADA ◽  
MARIYA HIDAYAT
Keyword(s):  
Valproic Acid ◽  
Control Group ◽  
Central Vein ◽  
Microscopic Structure ◽  
Pregnant Rats ◽  
Histological Changes ◽  
Group A ◽  
Group B ◽  
Group D ◽  
Control Group Group

BACKGROUND: Valproic Acid (VPA) is a broad - spectrum antiepileptic drug. Its use duringpregnancy has been associated with hapatotoxicity. This study was designed to assess the effects of VPAon the Microscopic structure of the Liver of developing rats exposed to the drug during varioustrimesters of pregnancy.OBJECTIVE: to evaluate the histological changes in developing liver in rats exposed to valproic acidduring different fetal periods. To correlate the extent of liver injury during various developmentalperiods.MATERIAL AND METHODS: In this Experimental Study pregnant rats were divided in to fourgroups A, B, C and D. Group D(n=10) was kept as control group. Group A (n=10) was given VPA in adose of 500 mg/kg/day intraperito-nealy (I/P) on days 3, 4, 5 of gestation. Group B (n=10) received thesame dose I/P on days 8, 9, 10 of gestation while Group C (n=10) received the same dose I/P on days16, 17, and 18 of gestation. On day 21 rats were euthanized and liver of the fetuses were dissected outfor examination.RESULTS: The central vein was significantly dilated in all the groups. Also, there was significantincrease in the size of hepatocytes in all the groups. Moreover, significant inflammation and congestionin portal areas and congestion in sinusoids were observed in all the experimental groups.CONCLUSION: VPA use during pregnancy produces hepatotoxicity in developing rats.KEY WORDS: Valproic Acid, Developing rats, Hepatotoxicity.

scholarly journals Absorbable suture can be effectively and safely used to close the mesenteric defect in a Gastric bypass Sprague-Dawley Rat Model

2019 ◽  
Author(s):  
Libin Yao ◽  
Ponnie Robertlee Dolo ◽  
Yong Shao ◽  
Chao Li ◽  
Jason Widjaja ◽  
...  
Keyword(s):  
Gastric Bypass ◽  
Greater Omentum ◽  
Absorbable Suture ◽  
Mesenteric Defect ◽  
Absorbable Sutures ◽  
Group A ◽  
Prolene Suture ◽  
Group B ◽  
Mesenteric Defects ◽  
Group D

Abstract Background: To observe if closing the mesenteric defect with absorbable sutures creates a safe adhesion compared to non-absorbable suture after Roux-en-Y gastric bypass.Methods: Rats were randomly assigned to 5 experimental groups according to the different suture materials used in closing the mesenteric defects (Peterson’s space) after Roux-en-Y gastric bypass. Group A (control group), Group B (non-absorbable suture, Prolene suture), Group C (biological glue), Group D (non-absorbable suture, polyester suture) and Group E (absorbable suture). All rats were followed up for 8 weeks postoperatively and underwent laparotomy to observe the degree of adhesion and closure of the mesenteric defect.Results: No significant difference was found in the decrease in food intake and body weight among all groups. No internal hernia (IH) occurred in any group. The mesenteric defects of Group A remained completely visible without any closure or adhesion. Multiple gaps were found between the Prolene suture and the mesentery along the suture line in Group B. The mesenteric defects of Group C were complete closed with multiple adhesions of the small intestine and the greater omentum. The mesenteric defects in both Group D and Group E closed completely. The average adhesion scores in Group A and Group B were 0 and 0.33±0.52 respectively. The average adhesion score in group C (3.83±0.41) was higher than the other groups (p＜0.05). The average adhesion scores in Group D and E were similar (3.17±0.41 and 3.00±0.00 respectively). Conclusion: Absorbable suture created a safe adhesion score between the mesentery which was not inferior to non-absorbable sutures.

scholarly journals Closure Methods for Midline Laparotomy Incisions Following Abdominal Surgery - A Comparative Study from Central India

2021 ◽  
Vol 8 (24) ◽  
pp. 2089-2093
Author(s):  
Hari Om Singh Sengar ◽  
Kailash Charokar ◽  
Prashant Nema
Keyword(s):  
Comparative Study ◽  
Wound Complications ◽  
Absorbable Suture ◽  
Midline Laparotomy ◽  
Mass Closure ◽  
Group A ◽  
Group B ◽  
Closure Method ◽  
Closure Group ◽  
Laparotomy Incision

BACKGROUND The method adopted for incision closure has an influence on the outcomes of wound healing. The study was conducted to compare the ‘mass closure’ method with the conventional layer closure, and to find out the suitable surgical closure method for midline laparotomy incision. METHODS A prospective comparative study was conducted at a tertiary care teaching institute over a period of 2 years. Patients > 14 years of age, who were operated on by midline laparotomy incision, were included in the study group (N = 60). Either a ‘mass closure’ or the conventional layer closure method was adopted as per the operating surgeon’s choice. Based on the method used the cases were allocated into two groups, each with 30 patients. In the ‘mass closure’ group (Group A), continuous suturing was used in 22 patients and interrupted closure in 8 patients. In the ‘layered closure’ group (Group B), the abdomen was closed in layers using absorbable suture for the peritoneum (together with transversalis fascia) and non-absorbable for the linea alba. The patients were followed up postoperatively, and for 6 months after discharge from the hospital in follow-up for the detection of the wound complications. RESULTS The mean age of patients in Group A was 40.9 ± 15.48 years, and 41.03 ± 14.73 in Group B. There were 25 males and 5 females in Group A and 23 males and 7 females in Group B. Closure time of incision was significantly lower in the mass closure group (P < 0.05). The postoperative complications in Group A was 20 % (Seroma-1 patient, infection-3, partial wound dehiscence-1, and hernia-1). In Group B, the overall complication rate was 36 % (Seroma-3 patients, infection-5, burst abdomen- 1, hernia- 2). CONCLUSIONS Mass closure method is better than the conventional layer closure for the midline laparotomy incision. KEYWORDS Laparotomy, Layered Closure, Midline Incision, Mass Closure, Suture Technique

scholarly journals Management of Traumatic Liver Injury in a Tertiary Care Hospital in Nepal

2020 ◽  
Vol 17 (4) ◽  
pp. 537-542
Author(s):  
Harish Chandra Neupane ◽  
Kishor Kumar Tamrakar ◽  
Abhishek Bhattrai ◽  
Tseten Yonjen Tamang ◽  
Bishnu Bista ◽  
...  
Keyword(s):  
Liver Injury ◽  
Operative Management ◽  
Treatment Modalities ◽  
Low Grade ◽  
Solid Organ ◽  
Care Hospital ◽  
Liver Injuries ◽  
Group A ◽  
Group B ◽  
Isolated Liver

Background: The liver is most frequently injured solid organ in abdominal trauma. The non-operative management is the standard treatment for hemodynamically stable patients. This study analyse the epidemiological aspects, injury patterns, treatment modalities and outcome in patients with liver injuries only and associated injuries outside the liver.Methods: This was a retrospective study in patients with liver injuries admitted from 1st March 2014 to 31st January 2019 at Chitwan Medical College and Hospital, Nepal. The patients were divided into two groups. Group A consisted of isolated liver injury and Group B liver injury with associated injury of other organs. Data were analysed by using descriptive statistics and Mann-Whitney U test.Results: A total of 61 patients were admitted with liver injury. There were 18 (29.5 %) patients with liver injury alone (group A) and 43 (70.5 %)liver injury associated with other organs (group B). Low grade liver injuries were 48 (78.7 %) and high grade 13 (21.3 %). The operative management was done for one liver injury with biliary peritonitis in group A. In group B, 16 patients required laparotomy and operative management for associated abdomen injuries.Conclusions: Non-operative treatment modality in hemodynamically stable patients with isolated liver injuries was safe and effective.Keywords: Liver injury; management; scoring; trauma.

scholarly journals Absorbable suture can be effectively and safely used to close the mesenteric defect in a Gastric bypass Sprague-Dawley Rat Model

2019 ◽  
Author(s):  
Libin Yao ◽  
Ponnie Robertlee Dolo ◽  
Yong Shao ◽  
Chao Li ◽  
Jason Widjaja ◽  
...  
Keyword(s):  
Gastric Bypass ◽  
Greater Omentum ◽  
Absorbable Suture ◽  
Mesenteric Defect ◽  
Absorbable Sutures ◽  
Group A ◽  
Prolene Suture ◽  
Group B ◽  
Mesenteric Defects ◽  
Group D

Abstract Background: To observe if closing the mesenteric defect with absorbable sutures creates a safe adhesion compared to non-absorbable suture after Roux-en-Y gastric bypass. Methods: Rats were randomly assigned to 5 experimental groups according to the different suture materials used in closing the mesenteric defects (Peterson’s space) after Roux-en-Y gastric bypass. Group A (control group), Group B (non-absorbable suture, Prolene suture), Group C (biological glue), Group D (non-absorbable suture, polyester suture) and Group E (absorbable suture). All rats were followed up for 8 weeks postoperatively and underwent laparotomy to observe the degree of adhesion and closure of the mesenteric defect. Results: No significant difference was found in the decrease in food intake and body weight among all groups. No internal hernia (IH) occurred in any group. The mesenteric defects of Group A remained completely visible without any closure or adhesion. Multiple gaps were found between the Prolene suture and the mesentery along the suture line in Group B. The mesenteric defects of Group C were complete closed with multiple adhesions of the small intestine and the greater omentum. The mesenteric defects in both Group D and Group E closed completely. The average adhesion scores in Group A and Group B were 0 and 0.33±0.52 respectively. The average adhesion score in group C (3.83±0.41) was higher than the other groups (p ＜ 0.05). The average adhesion scores in Group D and E were similar (3.17±0.41 and 3.00±0.00 respectively). Conclusion: Absorbable suture created a safe adhesion score between the mesentery which was not inferior to non-absorbable sutures.

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