Activity of Gas Transmitters in Vessels of the Anterior Abdominal Wall after Implantation of a Polypropylene Mesh

2020 ◽  
Vol 169 (6) ◽  
pp. 811-814
Author(s):  
А. А. Grigoryuk ◽  
А. Е. Kotsyuba
Keyword(s):  
Abdominal Wall ◽  
Polypropylene Mesh ◽  
Anterior Abdominal Wall

scholarly journals COMPARATIVE ULTRASTRUCTURAL CHARACTERISTICS OF THE EFFECT OF “LIGHTWEIGHT” AND “HEAVYWEIGHT” POLYPROPYLENE MESHES ON THE PRO-CESSES OF ANTERIOR ABDOMINAL WALL TISSUE REGENERATION WHEN PERFORMING RETROMUSCULAR ALLOGENEOPLASTY

2018 ◽  
Vol 17 (2) ◽  
pp. 76-83
Author(s):  
V. I. Pyatnochk ◽  
I. Ya. Dzyubanovsʹkyy ◽  
K. S. Volkov
Keyword(s):  
Abdominal Wall ◽  
Polypropylene Mesh ◽  
Anterior Abdominal Wall ◽  
Tissue Reaction ◽  
Tissue Response ◽  
Ultrastructural Changes ◽  
Lightweight Mesh ◽  
Aseptic Inflammation ◽  
Ultrastructural Studies ◽  
Tissue Reactions

The ultrastructural changes of the tissues of musculo-aponeurotic layer of anterior abdominal wall after implantation of the “lightweight” and “heavyweight” polypropylene meshes into the retrometallic space were studied in the experiment. Significant differences of the tissue reactions at different periods of the experiment on the implanted material were evidenced. The presence of a moderately pronounced inflammatory tissue reaction was noticed on the 14th day of the study in the area of the implantation of the “lightweight” polypropylene mesh compared to the “heavyweight” one: the inflammatory response included acute manifestations of aseptic inflammation with a significant tissue response. On the 28th day of the experiment, in cases of implantation of the “lightweight” mesh, the stabilization of tissue reaction to the implant with reduction of inflammatory changes was observed, as evidenced by a significantly smaller number of leukocyte infiltration sites, a significant improvement in vascularization and development of collagen fibres around the mesh material with fibroblasts, which was not observed in the area of implantation of the “heavyweight” polypropylene mesh. The conducted morphological and ultrastructural studies have prioritized the use of “lightweight” meshes when choosing material to perform allohernioplasty.

scholarly journals MORPHOLOGICAL CHARACTERISTICS OF THE ANTERIOR ABDOMINAL WALL TIS-SUES IN CASES OF IMPLANTATION OF POLYPROPYLENE MESH WITH PRF MEMBRANE

2018 ◽  
Vol 17 (3) ◽  
pp. 16-23
Author(s):  
V. I. Pyatnochka ◽  
I. Ya. Dzyubanovsʹkyy ◽  
K. S. Volkov
Keyword(s):  
Abdominal Wall ◽  
Polypropylene Mesh ◽  
Plasma Membranes ◽  
Anterior Abdominal Wall ◽  
Morphological Characteristics ◽  
Experimental Period ◽  
Ultrastructural Changes ◽  
Electron Microscopic ◽  
Mesh Material ◽  
Favourable Environment

According to the experimental study on Vietnamese pigs after implantation of a polypropylene mesh with PRF membrane into retromuscular space, the results of ultrastructural changes in the cells of muscular aponeurotic layer of abdominal wall were presented. It was proved that on the 14th day of the experiment, inflammatory changes in tissues were expressed significantly less than in cases of the isolated implantation of the polypropylene mesh without PRF membrane. Activation of fibroblasts and signs of fiber structures development around the mesh material increased. In the late experimental period (28 days), at the microscopic and electron-microscopic levels the minor manifestations of inflammatory reaction, improved microcirculation in the area of implantation of the mesh with PRF membrane were found that in turn contributed to the increased activity of fibroblasts and development of collagen fibers around the mesh material. The use of PRF plasma membranes stimulated an active development of new capillaries, improved blood flow, accelerated metabolic processes in tissues, and suddenly increased development of collagen, hyaluronic acid that in turn created favourable environment for a complete integration of the polypropylene mesh into the muscular aponeurotic layer of anterior abdominal wall tissue.

scholarly journals Aloplasty of oncisional ventral hernias of using nanomodified polypropilene mesh

2019 ◽  
Keyword(s):  
Abdominal Wall ◽  
Operative Treatment ◽  
Polypropylene Mesh ◽  
Anterior Abdominal Wall ◽  
Long Term Results ◽  
Postoperative Wound ◽  
Group I ◽  
Method Of Placement ◽  
Group Ii ◽  
Ventral Hernias

Aloplasty of incisional ventral hernia (IVH), method of placement and fixation nanomodified polypropylene mesh retro muscular, buth this is accompanied by a fairly high freguency of postoperative complications from the postoperative wound. In our view, the use of a nanomodified polypropylene mesh modified by carbon nanotubes and an antiseptic of polyhexamethlene guanidme chloride in combination with the method of placement and fixation retro muscular the results of operative treatment of IVH. Aim – to improve the results of operative treatment of incisional ventral hernias in combination with the method of placement and fixation retro muscular nanomodified polypropylene mesh. Materials and methods. The analysis of operative treatment of 148 patients with IVH of has been performed. Depending on the type of mesh used during surgical treatment, patients were divided into 2 groups. In 74 (50%) of Group I patients, method of placement and fixation nanomodified polypropylene mesh retro muscular. In the 2nd group, 74 (50%) patients method of placement and fixation retro muscular of a classic polypropylene mesh. Results and discussion. Statistically significant results were obtained in patients of Group I compared to Group II: seroma was in 24 (32.4±1.2%) in Group II compared to 5 (6.8±0.5%) in Group I (p<0.05), respectively, the suppuration of the postoperative wound – 7 (9.5±0.5%) to 1 (1.4±0.2%) (p<0.05). The terms of stay of patients of group II on inpatient treatment – 12,1±2,3 days group II – 7,1±1,1 days. Long-term results: ligature fistulas of the anterior abdominal wall were detected in 5 (7.7±0.5%) patients of group II, in patients of group I of the ligature fistulas were not detected (p<0.05), meshoma – in 3 (4.6±0.3%) of patients in group II, in group I there was no stir (p>0.05). Chronic pain in the abdominal wall in 6 – 8 months after surgery was observed in 5 (7.7±0.6)% patients in group II and in 1 (1.5±0.2%) group I (p>0.05), recurrences of hernia were found in 6 (9.2±0.6%) patients of group II, in group I – in 1 (1.5±0.2)% (p<0.05). Conclusion. Operative treatment of IVH method of placement and fixation nanomodified polypropylene mesh retro muscular is more effective compared with the use of the classical polypropylene mesh, namely, reducing the freguency of seroma from 32.4±1.2% in the II group of patients to 6.8±0.5% in group I, respectively, suppurations of postoperative wounds – from 9.5±0.5% to 1.4±0.2%, inflammatory infiltrates – from 12.2±0.6% to 1.4±0.2%, ligaturial fistulas of the anterior abdominal wall – from 7.7±0.5% to 0%, meshoma – from 4.6±0.3% to 0%, chronic postoperative pain – from 7.7±0.6% to 1.5±0.2%, recurrence of hernia–from 9.2±0.6% to 1.5±0.2%.

Determination of clinical efficiency of deproteinized dialysate from blood of milk-fed calves after endoprosthetics in patients with ventral hernias

2020 ◽  
Vol 28 (3) ◽  
pp. 323-333
Author(s):  
Sergej V. Ivanov ◽  
Ilya S. Ivanov ◽  
Evgenij G. Obyedkov ◽  
Liliya P. Popova
Keyword(s):  
Abdominal Wall ◽  
Inflammatory Reaction ◽  
Inflammatory Process ◽  
Anterior Abdominal Wall ◽  
Dynamic Change ◽  
Main Group ◽  
Control Group ◽  
Surgical Department ◽  
Regeneration Stage

Aim. To study the influence of deproteinized dialysate from blood of milk-fed calves on the type of exudative discharge and dynamics of inflammatory reaction after hernia repair with plastics of the anterior abdominal wall with hernioendoprosthesis of polypropylene. Materials and Methods. The study involved 59 patients being on stationary treatment in the surgical department of Kursk Regional Clinical Hospital. Patients were hospitalized for the herniation of small or medium dimension. The patients were divided to two groups: the main (n=30) and control (n=29) groups. After endoprosthetics, the patients of the control group were given complex conservative treatment. The patients of the main group, besides standard treatment, were administered deproteinized dialysate from blood of milk-fed calves intravenously in drips 10 ml + 200 ml of 0.9% sodium chloride solution within 7 days. For cytological examination and determination of the type of cytograms, the traumatic discharge was collected and analyzed using the method of M.F. Kamaev and M.A. Palthsev. Results. Cytomorphometric examination was conducted on the third, fifth and seventh day after endoprosthetics with the aim of studying dynamic changes. Determination of cell composition and also of its changes characteristic of each studied period, was necessary for obtaining further information characterizing inflammatory process in the region of placement of the endoprosthesis. After endoprosthetics in patients who were administered hemodialysate, the inflammatory reaction was less pronounced than in patients who did not receive the preparation. This was associated with a more dynamic change of stages of the inflammatory process. In patients of the main group who received deproteinized dialysate, regenerative type of inflammation first appeared on the fifth day and made 6.9%; by the seventh day the share of patients with the regenerative type rose to 17.5%, while in the patients of the control group no regeneration stage was observed in both periods. Conclusion. Analysis of the efficiency of influence of hemodialysate on the inflammatory reaction in plastics of the anterior abdominal wall with polypropylene endoprosthesis evidences faster course of all stages of inflammation and reduction of its intensity by 10%.

scholarly journals Collagen and Elastic Fiber Content Correlation Analysis between Horizontal and Vertical Orientations of Skin Samples of Human Body

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Naveen Kumar ◽  
Pramod Kumar ◽  
Satheesha Nayak Badagabettu ◽  
Ranjini Kudva ◽  
Sudarshan Surendran ◽  
...  
Keyword(s):  
Abdominal Wall ◽  
Negative Correlation ◽  
Anterior Abdominal Wall ◽  
Elastic Fiber ◽  
Elastic Fibers ◽  
Correlation Pattern ◽  
Unequal Distribution ◽  
Dermal Collagen ◽  
Lateral Chest ◽  
Skin Samples

Background. Unequal distribution of dermal collagen and elastic fibers in different orientations of skin is reported to be one of the multifocal causes of scar related complications. Present study is to understand the correlation pattern between collagen in horizontal (CH) and in vertical (CV) directions as well as that of elastic in horizontal (EH) and vertical (EV) directions.Materials and Method. A total of 320 skin samples were collected in two orientations from suprascapular, anterior chest, lateral chest, anterior abdominal wall, and inguinal regions of 32 human cadavers. Spearman correlation coefficient (r) was calculated between the variables (CH,CV,EH, andEV).Results. Significant positive correlation betweenCHandCV, and betweenEHandEVobserved in all 5 areas tested. A negative correlation betweenCVandEVat suprascapular, lateral chest, and inguinal regions and negative correlation betweenCHandEHat anterior chest and anterior abdominal wall have been identified.Conclusion. Knowledge of asymmetric content of dermal collagen and elastic fibers together with the varied strength and degree of association in the given area provides guidelines to the dermatologists and aesthetic surgeons in placing elective incisions in the direction maximally utilizing the anatomical facts for aesthetically pleasing result.

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