scholarly journals BIOMATERIALS BASED ON CHITOSAN AND ITS DERIVATIVES TO PREVENT ADHESION FORMATION

Author(s):  
Mariya Konovalova ◽  
◽  
Daria Tsaregorodtseva ◽  
Elena Svirshchevskaya ◽  

An increase in the number and volume of surgical interventions leads to an increase in the frequency of postoperative adhesions. The development of the adhesion process in the abdominal cavity causes pain, a decrease in the quality of life of patients, a violation of the reproductive function of women as well as acute adhesion intestinal obstruction. Recently, polymer biomaterials, including those based on chitosan, have been widely used for the prevention of adhesions. Due to their biocompatibility and biodegradation ability, they do not require repeated operations to extract the material. It is believed that these materials act as barriers, physically separating the damaged surfaces. The molecular mechanism of their action is still poorly understood. In this review, the main mechanisms of adhesion formation, as well as ways to prevent them with the help of materials based on chitosan and its derivatives, are discussed.

2021 ◽  
Vol 4 (2) ◽  
pp. 130-136
Author(s):  
A.N. Sulima ◽  
◽  
G.A. Puchkina ◽  

Aim: to assess the efficacy of complex prevention of postoperative pelvic adhesions. Patients and Methods: this open-label comparative prospective study involved 222 women of reproductive age with gynecological diseases, tuboperitoneal infertility, and pelvic adhesions stage 1–2 diagnosed laparoscopically (according to the R-AFS classification). In the study group (n=112), the prevention of postoperative adhesions was performed using the authors’ algorithm that included separation of adhesions using HARMONIC ultrasonic energy, intra-abdominal injection of anti-adhesive agent based on a natural polymer of carboxymethyl cellulose, and IM sodium deoxyribonucleate from post-op day 1 with a 24-hour interval for 10 days. In the comparison group (n=110), separation of adhesions was performed using bipolar energy, and standard preventive measures were applied. The rate and severity of postoperative adhesions (via second-look laparoscopy), the recovery of reproductive function (by the fact of intrauterine pregnancy), and the quality of life (using MOS SF-36 and WHQ questionnaires) were evaluated. The levels of CD20+, CD4+, CD8+, and CD56+ lymphocytes cells were measured preoperatively and on postoperative days 3 and 14. Follow-up was 12 months. Results: authors’ preventive algorithm activates immunoregulatory mechanisms of cellular humoral immunity, reduces the rate (by 4.5 times, p<0.001) and severity of adhesions (p = 0.047), increases the rate of pregnancy by 1.6 times, and provides maximum physical and psychological quality of life. Conclusions: authors’ algorithm of the prevention of postoperative pelvic adhesions in women with gynecological diseases and tuboperitoneal infertility is characterized by reliable clinical efficacy as demonstrated by the improvement of both early and long-term surgical outcomes. KEYWORDS: postoperative pelvic adhesions, small pelvis, prevention, cellular humoral immunity, infertility, reproductive function, quality of life. FOR CITATION: Sulima A.N., Puchkina G.A. Efficacy of complex preventive approach to postoperative pelvic adhesions. Russian Journal of Woman and Child Health. 2021;4(2):130–136. DOI: 10.32364/2618-8430-2021-4-2-130-136.


2017 ◽  
Vol 10 (4) ◽  
pp. 320-326 ◽  
Author(s):  
Alexandr Alexeevich Andreev ◽  
Anton Petrovich Ostroushko ◽  
Elena Sergeevna Sotnikova ◽  
Daria Vladimirovna Kiryanova ◽  
Vladislav Nikolaevich Britikov

After operations on the abdominal adhesions occur in 80-90% of cases, adhesive disease develops in 12-64% of cases. First about the causes of adhesions said George Punter in 1793. For the first time in the Russian literature on intraperitoneal adhesions mentioned V.P. Dobrovolsky in 1838. According to modern notions, adhesive disease is a separate nosological form, characterized by the formation of intra-abdominal adhesions, as a rule, manifested by recurrent episodes of intestinal obstruction or pain. The basis for the development of peritoneal commissures in abdominal cavity are a complex, diverse violations of the functions of various body systems. Trigger in the development of adhesion formation in abdominal cavity considered: mechanical, physical, infectious, implant, chemical factors and congenital anomalies (bands of lane, membranes of Jackson and others). As a result of inflammation of the peritoneum dystrophic process, accompanied by desquamation of the mesothelium and other connective tissue layers of the peritoneum, there is an allocation of exudate, coagulation of protein components and formation of fibrinous adhesions, which under normal fibrinolytic activity within 24-72 hours lysed. There are four degrees of prevalence of adhesions: grade I – local adhesions, occupying not more than 1/3 of one floor; II degree – additionally determined by single spikes in other areas. III and IV degree – adhesions, occupying 1/3 and 2/3 of the abdominal cavity, respectively. The clinical picture of adhesive disease is expressed aching pain in the abdomen, changing its character with the change of body position; periodic bloating, unstable chair; vomiting during exercise or after violation of the diet, the phenomena of complete or partial adhesive intestinal obstruction. Diagnostic informativeness of traditional x-ray methods is only 50-60%. The most informative is the use of contrast enterography and ultrasound examination of the abdomen with a directed study of problem areas of the abdomen. Prevention of adhesions is an important problem of practical surgery. Methods of preventing the formation of adhesions are the following: reduction of abdominal trauma, reducing inflammation in the area of operations, reducing the likelihood of deposition of fibrin in the free abdominal cavity, the suppression of postoperative paresis of the intestine, delimitation of the damaged serosal surfaces and interfere with adhesion by applying a protective film on the mesothelium. Application drugs does not negate the careful attitude to the tissues and accurate surgical interventions. Conservative treatment includes: electrophoresis lidazy, hydrocortisone, application of paraffin, ozokerite on the anterior abdominal wall, injection antispasmodics, nasogastric drainage, staging of hypertension and cleansing enemas and others. Indications for operative intervention are: absence of effect of conservative treatment, the deterioration of the patient, the symptoms of acute intestinal obstruction. The following types of surgery: enteroclysis, the imposition of intestinal anastomosis with or without bowel resection laparoscopic lysis of adhesions, entropicalia.


2020 ◽  
pp. 3-25
Author(s):  
D. Lukanin ◽  
G. Rodoman ◽  
M. Klimenko ◽  
A. Sokolov ◽  
A. Sokolov

The article presents the results of a prospective controlled parallel clinical study of a new modification of laparoscopic antireflux surgery in the treatment of gastroesophageal reflux disease in combination with a hiatal hernia compared with laparoscopic Nissen fundoplication in terms of assessing quality of life after surgery. Clinical and instrumental examination of patients was carried out a year after surgical interventions. In accordance with the results of instrumental examination after surgery, the proposed modification of laparoscopic partial fundoplication is not inferior to laparoscopic Nissen fundoplication both, in terms of relief of reflux esophagitis symptoms and in relation to the recurrence of hiatal hernia. Clinical monitoring indicates a significantly higher quality of life for patients after the modified antireflux surgery, which is associated with a number of factors. The implementation of this fundoplication led to a decrease in the number of patients with complaints of dysphagia, the development of which is directly related to the surgery performance, as well as to a statistically significant reduction of bloating in the upper abdomen. Another advantage of the modified surgery is a significantly smaller number of cases of gas-bloat syndrome. In addition, the disorders developing in the framework of the gas bloat syndrome after laparoscopic Nissen fundoplication are more severe.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Iori Kisu ◽  
Kanako Nakamura ◽  
Tetsuro Shiraishi ◽  
Tomoko Iijima ◽  
Moito Iijima ◽  
...  

Abstract Background Robert’s uterus is a rare Mullerian anomaly, which can be described as an asymmetric, septate uterus with a non-communicating hemicavity. Herein, we present the case of a misdiagnosed Robert’s uterus, resulting in an invasive and disadvantageous surgery. Case presentation A 16-year-old woman was referred to our department because of dysmenorrhea and suspicion of uterine malformation. We misdiagnosed Robert’s uterus as a unicornuate uterus with a non-communicating rudimentary horn and hematometra, and performed laparoscopic hemi-hysterectomy. Although the patient’s symptoms were relieved, our surgical procedure left the lateral uterine wall weak, making the patient’s uterus susceptible to uterine rupture in any future pregnancy. Conclusions Although the early diagnosis of Robert’s uterus is challenging, it is important in order to determine appropriate surgical interventions and management for maintaining the quality of life and ensuring safety in future pregnancies.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Miss Charlotte L. Moss ◽  
Ajay Aggarwal ◽  
Asad Qureshi ◽  
Benjamin Taylor ◽  
Teresa Guerrero-Urbano ◽  
...  

Abstract Background Patient reported outcome measurements (PROMs) are emerging as an important component of patient management in the cancer setting, providing broad perspectives on patients’ quality of life and experience. The use of PROMs is, however, generally limited to the context of randomised control trials, as healthcare services are challenged to sustain high quality of care whilst facing increasing demand and financial shortfalls. We performed a systematic review of the literature to identify any oncological benefit of using PROMs and investigate the wider impact on patient experience, in cancers of the pelvic abdominal cavity specifically. Methods A systematic review of the literature was conducted using MEDLINE (Pubmed) and Ovid Gateway (Embase and Ovid) until April 2020. Studies investigating the oncological outcomes of PROMs were deemed suitable for inclusion. Results A total of 21 studies were included from 2167 screened articles. Various domains of quality of life (QoL) were identified as potential prognosticators for oncologic outcomes in cancers of the pelvic abdominal cavity, independent of other clinicopathological features of disease: 3 studies identified global QoL as a prognostic factor, 6 studies identified physical and role functioning, and 2 studies highlighted fatigue. In addition to improved outcomes, a number of included studies also reported that the use of PROMs enhanced both patient-clinician communication and patient satisfaction with care in the clinical setting. Conclusions This review highlights the necessity of routine collection of PROMs within the pelvic abdominal cancer setting to improve patient quality of life and outcomes.


2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Maurizio Nicola D’Alterio ◽  
Stefania Saponara ◽  
Mirian Agus ◽  
Antonio Simone Laganà ◽  
Marco Noventa ◽  
...  

AbstractEndometriosis impairs the quality of life (QoL) of many women, including their social relationships, daily activity, productivity at work, and family planning. The aim of this review was to determine the instruments used to examine QoL in previous clinical studies of endometriosis and to evaluate the effect of medical and surgical interventions for endometriosis on QoL. We conducted a systematic search and review of studies published between January 2010 and December 2020 using MEDLINE. Search terms included “endometriosis” and “quality of life.” We only selected studies that used a standardized questionnaire to evaluate QoL before and after medical or surgical interventions. Only articles in the English language were examined. The initial search identified 720 results. After excluding duplicates and applying inclusion criteria, 37 studies were selected for analysis. We found that the two scales most frequently used to measure QoL were the Short Form-36 health survey questionnaire (SF-36) and the Endometriosis Health Profile-30 (EHP-30). Many medical and surgical treatments demonstrated comparable benefits in pain control and QoL improvement. There is no clear answer as to what is the best treatment for improving QoL because each therapy must be personalized for the patient and depends on the woman’s goals. In conclusion, women must be informed about endometriosis and given easily accessible information to improve treatment adherence and their QoL.


2010 ◽  
Vol 8 (Suppl_7) ◽  
pp. S-38-S-55 ◽  
Author(s):  
Jennifer M. Hinkel ◽  
Edward C. Li ◽  
Stephen L. Sherman

Management of anemia in patients with cancer presents challenges from clinical, operational, and economic perspectives. Clinically, anemia in these patients may result from treatment (chemotherapy, radiation therapy, or surgical interventions) or from the malignancy itself. Anemia not only contributes to cancer-related fatigue and other quality of life issues, but also affects prognosis. From the operational perspective, a patient with cancer who is also anemic may consume more laboratory, pharmacy, and clinical resources than other patients with cancer.


2017 ◽  
Vol 158 (3) ◽  
pp. 505-510 ◽  
Author(s):  
Simon R. Best ◽  
Julie Ahn ◽  
Shannon Langmead ◽  
Vaninder Dhillon ◽  
Alexander T. Hillel ◽  
...  

Objective Neurofibromatosis 2 (NF2) is a neuro-oncologic condition that presents with bilateral vestibular schwannomas of the cerebellopontine angle (CPA). Voice and swallowing impairment can occur from direct involvement or compression of the vagus nerve or as the result of surgical excision of CPA tumors. The objectives in this study are to (1) assess the prevalence of voice and swallowing impairments and (2) analyze the effects of vagal dysfunction in patients with NF2. Study Design Cross-sectional. Setting Academic tertiary care center. Subjects and Methods Patients at a neurofibromatosis center were mailed Voice Handicap Index and Sydney Swallow Questionnaire surveys. Stroboscopic, voice, and swallowing evaluations were performed for patients who elected to participate in screening exams. Results There were high rates of self-assessed and objective voice and swallowing handicaps in this population. Fourteen of 40 (35%) patients had a self-assessed voice handicap, and 20 of 40 (50%) patients had a self-assessed swallow handicap. Vocal fold motion impairment (VFMI) was observed in 22 of 31 (71%) patients examined, with 27 of 62 (44%) possible vocal cords affected. Velopharyngeal insufficiency (45%) and piriform sinus pooling or residue (39%) were seen in a significant percentage of patients. There was a significant relationship between vocal cord motion impairment and CPA surgical intervention ipsilateral to the impairment ( P = .002). The presence of VFMI was strongly associated with voice ( P = .002) and swallowing ( P = .01) impact on quality of life. Conclusion Speech and swallowing impairments are highly prevalent in patients with NF2, cause significant impact on quality of life, and are most commonly related to surgical interventions in the CPA region.


Author(s):  
Wanchart Yippaditr ◽  
Antja Watanangura ◽  
Disdanai Pencharee ◽  
Nobuo Sasaki

Abstract OBJECTIVE To evaluate the feasibility of buccal mucosal graft urethroplasty for repairing complete urethral rupture in cats. ANIMALS 15 male domestic shorthair cats with traumatic complete urethral rupture. PROCEDURES In each cat, a section of buccal mucosa was harvested, sutured, and formed into a tubule by use of an 8F indwelling catheter as support. This tubular graft was connected to both ruptured ends of the urethra to renew the urinary passage. The catheter was left in place until the absence of leakage was confirmed by positive contrast retrograde urethrography. After spontaneous urination was confirmed, cats were discharged from the hospital. Six months later, urethrography was repeated and owners were asked to score their cats’ urinary function and quality of life. RESULTS 13 cats recovered well following surgery, with no complications in the oral cavity or surgical site and no signs of difficulty or discomfort when urinating. Urethrography 2 weeks and 6 months after surgery revealed no stricture or leakage in the abdominal cavity. The 2 remaining cats developed a urethral stricture and underwent second surgery with a successful outcome. At the 6-month follow-up, 14 cats had only mild urinary signs, and 1 cat had incontinency. Owners indicated they were delighted (n = 14) or pleased (1) with their cats’ quality of life. CLINICAL RELEVANCE Buccal mucosa was found to be a good source of graft tissue for performance of urethroplasty in male cats, yielding satisfactory outcomes with few postoperative complications. The described technique may be suitable for severe and complicated cases of urethral rupture in male cats.


2012 ◽  
Vol 26 (1) ◽  
pp. 3
Author(s):  
Munir'deen A. Ijaiya ◽  
Hadijat O. Raji

Prolapse of the pelvic organs is a common condition encountered in gynecological practice that adversely affects the quality of life of affected women. It affects millions of women worldwide. The principles of treatment of pelvic organ prolapse include restoring anatomy and vaginal function, correcting associated urinary and or fecal incontinence, and preventing de novo prolapse and incontinence. There are various treatment options for pelvic organ prolapse. These vary from conservative treatments/ mechanical interventions to surgery. The choice of treatment depends on severity of symptoms, patient’s age, parity, and whether there is the need to conserve the uterus for reproductive function. In conclusion, thorough evaluation of symptoms and degree of prolapse is essential in order to provide the best possible treatment and ultimately improve quality of life.


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