Ilaser Submucous Destruction in the Treatment of Hemorrhoids

Aim: to improve the results of treatment in patients with hemorrhoids of the 2nd and 3rd stages.Materials and methods. The prospective study included 60 patients with hemorrhoids of the 2nd and 3rd stages. All patients underwent destruction of internal hemorrhoids with a fiber laser with a diode pump with a wavelength of 1940 nm. The technique is based on the effect of laser energy on the cavernous tissue of the internal hemorrhoidal node and on the terminal branches of the upper rectal artery. The efficiency of the destruction of internal hemorrhoids and the frequency of relapses of the disease were evaluated. The effectiveness of the proposed method was evaluated using anoscopy, measurement of the size of internal hemorrhoidal nodes, transrectal ultrasound with dopplerography. The analysis of the intensity of the pain syndrome, the consumption of nonsteroidal anti-inflammatory drugs and the assessment of the quality of life on the SF-36 scale was carried out. Sphincterometry was performed in all patients to determine the possible effect of laser radiation on the rectal locking apparatus. To assess the possible causes of complications, a single-factor analysis of the amount of energy transferred to each hemorrhoidal node and the total amount of energy spent on the operation was conducted.Results. In all patients, by day 7 after surgery, the pain syndrome in 43 patients (75.4 %) corresponded to 0 points according to VAS. In 3 patients (5 %) intraoperative hemorrhage developed. In the early postoperative period, 5 patients (8.3 %) had 7 complications: 5 cases of thrombosis of the external hemorrhoidal node and 2 — of acute urinary retention. The conducted single-factor analysis showed the dependence of the development of complications on the energy transferred to each hemorrhoidal node and its total amount for the entire operation. In terms of up to 6 months, there were no signs of a return of the disease in any case (hemorrhoidal prolapse and blood discharge). The detected hemorrhoids before the operation, a month after the operation, were not visualized, which persisted after 6 months. The performed transrectal ultrasound examination with spectral-wave dopplerography for up to 6 months allowed to diagnose a persistent decrease in blood flow along the terminal branches of the upper rectal artery compared with preoperative values. When performed sphincterometry, there was no change in the parameters of the anal sphincter function compared to preoperative parameters.Conclusion. The proposed method applying a fiber laser with a diode pump with a wavelength of 1940 nm makes it possible to affect transdermally the internal hemorrhoidal node without damaging the mucosa of the anal canal. The absence of postoperative wounds in the anal canal leads to a decrease in pain syndrome, and by day 7 there are no clinical manifestations of hemorrhoids. The method of laser destruction of internal hemorrhoids can be used in outpatient conditions and can improve the quality of life of patients in the early postoperative period

The Opportunity of Using Diode Laser with the Length of 1940 nm in the Treatment of Hemorrhoids

Aim: to improve the results of treatment of patients with hemorrhoidal disease of the 2nd and 3rd stages by using a diode laser with a wavelength of 1940 nm.Materials and methods. The study included 28 patients with hemorrhoids of the second or third stage. A new treatment method based on the use of a diode laser with a wavelength of 1940 nm was applied to all patients. This technique (laser hemorrhoidoplasty) provides for the thermal effect of laser radiation on the cavernous tissue of the internal hemorrhoid node and the terminal branches of the upper rectal artery. The intensity of postoperative pain syndrome was assessed and the clinical symptoms of hemorrhoidal disease manifestations were studied before and after surgery. To study the effectiveness of the proposed method and to assess the depth of thermal exposure to laser radiation, transrectal ultrasound with Dopplerography and pathomorphological examination were performed. The functional state of the rectal locking apparatus before surgery and in the postoperative period was assessed using sphincterometry. The quality of life of patients who underwent laser hemorrhoidoplasty was studied according to the SF 36 questionnaire.Results. Surgical intervention was performed under both local and spinal anesthesia. Intraoperative complications in the form of hemorrhoidal node bleeding were noted in 3 patients. In the early postoperative period, inflammatory edema of external hemorrhoids was diagnosed in 4 patients. The intensity of the pain syndrome was assessed on the VAS scale and by day 7 in 93 % of patients it did not exceed 1 point. All 28 patients were followed up within 1 to 6 months after the operation. All had no complaints characteristic of hemorrhoidal disease, no relapse of the disease was detected in any observation. Transrectal ultrasound with Dopplerography was performed, which made it possible to diagnose a 2–3-fold decrease in blood flow along the terminal branches of the upper rectal artery, and internal hemorrhoids determined earlier, before surgery, were not visualized already 1 month after surgery. According to sphincterometry, no violations of anal retention function were detected in all 28 patients.Conclusion. Surgical treatment of hemorrhoids of the 2nd and 3rd stages with the use of a diode laser with a wavelength of 1940 nm. with proper technical performance and the choice of optimal energy, it allows to achieve a good clinical effect. The proposed method of intervention ensures the absence of a pronounced pain syndrome, which does not lead to a significant decrease in the quality of life already in the early postoperative period and allows to shorten the period of labor rehabilitation. Laser hemorrhoidoplasty is a highly effective method of treating hemorrhoids at stages 2 and 3 of the disease and opens up the possibility of treatment on an outpatient basis

Raman Study of CVD Graphene Irradiated by Swift Heavy Ions

CVD-graphene on silicon was irradiated by accelerated heavy ions (Xe, 160 MeV, fluence of 1011 cm-2) and characterized by Raman spectroscopy. The defectiveness of pristine graphene was found to be dominated by grain boundaries while after irradiation it was determined by both grain boundaries and vacancies. Respectively, average inter-defect distance decreased from ~ 24 to ~ 13 nm. Calculations showed that the ion irradiation resulted in a decrease in charge carrier mobility from ~ 4.0 × 103 to ~ 1.3·103 cm2/V s. The results of the present study can be used to control graphene structure, especially vacancies concentration, and charge carrier mobility

Micro Raman investigation of graphene synthesized by atmospheric pressure CVD on copper foil from decane

In this article we present the results of micro-Raman studies of graphene grown on copper foil surface by atmospheric pressure CVD using decane as precursor, nitrogen as carrier gas with zero flow of hydrogen. Analysis of Raman spectroscopy data showed that film contains spots with single layer thick graphene. We observed significant blue shift of 2D and G bands positions for mono-atomically thick graphene on copper foil. Following literature we relate this shift to the strain induced by the presence of copper substrate. Moreover, we observed changes in the defectiveness of graphene layers after the transfer, which was related to the appearance of chemically-induced defects and defects induced by changes in the mechanical strain

Cellular Reconstruction of the Rectal Mucosa during surgical Treatment of Familial Adenomatosis of the Colon: 12 Years after the First Experience of Introduction into Clinical Practice

Aim. To study long-term results of surgical treatment of patients with familial adenomatous polyposis (FAP) with the cell reconstruction of the rectal mucosa.Materials and methods. 57 FAP patients were subjected to treatment, which involved colproctectomy, the preservation of the lower rectal ampulla, mucosectomy and the reconstruction of the mucosa by cell transplantation. Endoscopic monitoring was carried out, with the endoscopic observation covering the period of 19–120 months (median — 44.3 months). Morphological and immunohistochemical studies were conducted. The long-term functional results of treatment (anorectal manometry (profilometry)) were studied. The patients were surveyed using the SF-36 questionnaire to monitor the quality of their life.Results. Our results show that the use of cell transplantation leads to the reconstruction of the rectal mucosa over a fairly short time: in 44/57 (77.2 %) patients, the endoscopic picture corresponded to the unchanged rectal mucosa 4 weeks after the surgery. In 13/57 (22.8 %) patients, a complete mucosal reconstruction was achieved 8–12 weeks after the surgery. The absence of polyp growth in the preserved part of the rectum was observed. Late complications developed only in 5 (9.4 %) patients. Good functional results (acceptable frequency of defecation, lack of signs of anal incontinence and nocturnal defecation) were observed in 48/53 (90.6 %) patients. The quality of life was at a fairly high level in 90.6 % of patients.Conclusion. The proposed method of FAP treatment allowed the immediate and long-term treatment results to be improved significantly

Anal Sphincter Function After Hemorrhoidectomy

Aim. To generalize and present current data on the development of approaches to hemorrhoidectomy, as well as to analyse the function of the rectal closing apparatus after surgery.Key findings. The haemorrhoid disease is one of the most common human diseases and the most common reason for visiting a coloproctologist. In Russia, the prevalence of haemorrhoids amounts to 130–145 people per 1,000 adult population, with its proportion in the structure of colon diseases varying from 34 to 41 %. Minimally invasive methods for treating such conditions have been shown to be effective in patients with 1–3 stage haemorrhoids. However, these methods have shown little value at stage 4 hemorrhoids, largely because they fail to affect all parts of the disease pathogenesis. Thus, hemorrhoidectomy remains to be the “gold standard” for stage 4 hemorrhoids treatment, which is aimed at eliminating the three main vascular collectors. Hemorrhoidectomy is accompanied by the risk of stricture and postoperative anal sphincter failure. In this regard, it is necessary to assess the functional state of the rectal closing apparatus after hemorrhoidectomy. Improving hemorrhoidectomy, for example, by the use of an ultrasonic scalpel, allows the hemorrhoidectomy to be performed without additional sewing of vessels and coagulation, and the injury of the anal sphincter to be minimized.Conclusion. The possibility of injuring the anal sphincter is a serious problem in anal surgery. Anal sphincter incontinence is a serious illness that exacerbates the patients’ social life. Unfortunately, the issue of anal sphincter incontinence after hemorrhoidectomy is under-investigated, resulting in few rehabilitation programs

Anal Sphincter Function After Hemorrhoidectomy

Aim. To generalize and present current data on the development of approaches to hemorrhoidectomy, as well as to analyse the function of the rectal closing apparatus after surgery.Key findings. The haemorrhoid disease is one of the most common human diseases and the most common reason for visiting a coloproctologist. In Russia, the prevalence of haemorrhoids amounts to 130–145 people per 1,000 adult population, with its proportion in the structure of colon diseases varying from 34 to 41 %. Minimally invasive methods for treating such conditions have been shown to be effective in patients with 1–3 stage haemorrhoids. However, these methods have shown little value at stage 4 hemorrhoids, largely because they fail to affect all parts of the disease pathogenesis. Thus, hemorrhoidectomy remains to be the “gold standard” for stage 4 hemorrhoids treatment, which is aimed at eliminating the three main vascular collectors. Hemorrhoidectomy is accompanied by the risk of stricture and postoperative anal sphincter failure. In this regard, it is necessary to assess the functional state of the rectal closing apparatus after hemorrhoidectomy. Improving hemorrhoidectomy, for example, by the use of an ultrasonic scalpel, allows the hemorrhoidectomy to be performed without additional sewing of vessels and coagulation, and the injury of the anal sphincter to be minimized.Conclusion. The possibility of injuring the anal sphincter is a serious problem in anal surgery. Anal sphincter incontinence is a serious illness that exacerbates the patients’ social life. Unfortunately, the issue of anal sphincter incontinence after hemorrhoidectomy is under-investigated, resulting in few rehabilitation programs

Possibilities for the Application of Low-Temperature Argon Plasma in the Treatment of Postoperative and Long-Term Non-Healing Wounds

Aim. To review available information on the use of low-temperature argon plasma in the treatment of postoperative and long-term non-healing wounds.General findings. Low-temperature argon plasma is an ionised gas, one of the four classical aggregate states of matter. Its therapeutic effect is achieved by means of the gas-dynamic effect, i.e. an argon flow with a high heat content and wide-spectrum recombination radiation — from the vacuum ultraviolet region to the near infrared range, as well as by means of the pronounced catalytic properties of gaseous argon, which is important for a number of biochemical reactions. Low-temperature argon plasma has a pronounced antibacterial effect. In a number of studies, the wound healing effect of low-temperature argon plasma was demonstrated.Conclusion. The use of low-temperature argon plasma can reduce the time of wound healing, the titre of clinically significant microorganisms and the time spent by patients in hospital. In addition, the use of low-temperature argon plasma can improve patients’ quality of life in the postoperative period

Application of Fibrin Glue in the Treatment of Rectal Fistula

Aim: to summarize the literature data on the treatment of rectal fistula using fibrin glue.Key findings: The prevalence of rectal fistula is about 9 cases per 100,000 population. Patients with rectal fistulas are frequently represented by the able-bodied middle-aged population group. The disease is extremely rarely observed in children and elderly people. Thus, this problem has a socially significant character. Fistula elimination is possible only by surgery, which is accompanied by the risk of fistula recurrence and the development of postoperative incontinence. In this regard, low-invasive techniques for the treatment of rectal fistulas, such as the use of fibrin glue, are being actively investigated.Conclusion: The use of fibrin glue as a sphincter-preserving technique eliminates the development of postoperative anal failure, while new technologies and materials aim to reduce the risk of the disease recurrence