PECULIARITIES OF THE SECOND MESIOBUCCAL CANAL IN MAXILLARY FIRST MOLAR: A RETROSPECTIVE ANALYSIS.

Unlabelled: The first maxillary molar is one of the most difficult teeth for endodontical treatment; it presents the highest failure rates due to the impossibility of locating and treating the second mesiobuccal canal (MB2). The aim of our work was study of second mesiobuccal canal in maxillary first molar and compare obtained data with literature sources for increasing the efficiency of treatment.

Materials And Methods: The study involved 59 patients with exacerbation of chronic pulpitis or chronic periodontitis who were distributed according to age: 14-20 years, 21-30 years and 31-40 years.

THE RELATIONSHIP BETWEEN THE CONDITION OF THE ORAL CAVITY AND THE USE OF TOBACCO PRODUCTS IN DIFFERENT AGE GROUPS.

Unlabelled: Understanding the harmful effects of using tobacco products (cigarettes, electronic cigarettes (e-cigarette) or vape, IQOS, hookah, etc.) by various segments of the population is one of the important ways to improve the condition of the tissues of the oral cavity, since smoking is an important risk factor for the occurrence of chronic destructive periodontal diseases. The purpose of our work was a study of the relationship between the state of the oral cavity and the use of tobacco products in different age groups based on the conducted questionnaire.

Infrared thermal imaging camera to measure low temperature thermal fields.

To measure low-temperature thermal fields, we have developed a single-element cooled thermal imaging camera for a spectral range of 8-14 μm with an internal shutter for radiometric calibration. To improve the accuracy of measuring the temperature of cold objects, we used a shutter with a combined emissivity as an internal reference source of radiation at the input of the device optical unit. With this aim a small mirror was fixed in the center on its surface covered black, thereby ensuring an efficient reflection of radiation in a wide spectral range of wavelengths.

INFRARED THERMAL IMAGING CONTROL OF RADIATION DERMATITIS DYNAMICS.

Background: Radiation-induced dermatitis impairs the quality of life of cancer patients and may lead to the need of interrupting radiotherapy. The grade of dermatitis is subjectively assessed by the visual examination. There is an urgent need for both objective and quantitative methods for assessing the current grade of dermatitis and predicting its severity at an early stage of radiotherapy.

[Language, cultural adaptation and validation of the OABSS (Overactive Bladder Symptom Score) questionnaire in patients with overactive bladder].

Aim: To perform language and cultural adaptation and validation of the OABSS (Overactive Bladder Symptom Score) questionnaire among patients with overactive bladder (OAB), proposed as an effective tool for assessing the severity of symptoms and the efficiency of treatment in clinics of the Russian Federation.

Materials And Methods: In accordance with the protocols for carrying out such studies, the procedure of standardized forward-backward translation of the OABSS questionnaire was performed. Further, the intermediate Russian-language version was applied to 15 patients with subsequent correction of deficiencies and approval of the final Russian-language version of the questionnaire.

[Questionnaire of the Ryzhikh National Medical Research Centre for Coloproctology is a new tool for assessing chronic pelvic pain and pelvic organ dysfunction].

The article presents the work of a multidisciplinary team of experts from various fields of medicine to optimize the «Questionnaire for assessing chronic pelvic pain and pelvic organ dysfunction (QCPPD) of the Ryzhikh National Medical Research Centre for Coloproctology» for use in clinical practice. The survey of respondents was conducted from June 28 to September 28, 2021. As a result of this survey, by repeatedly making edits and clarifications during communication with respondents, the final version was obtained, which allows assessing the patient's subjective sensations by the nature and localization of pelvic pain, sensitivity disorders and pelvic organ function.

[Medical rehabilitation in patients with anal incompetence after surgery for stage IV hemorrhoids].

Unlabelled: The choice of medical rehabilitation in patients with anal incontinence is impossible without diagnostic data revealing the mechanism of fecal incontinence. The most promising are programs of comprehensive physiotherapeutic rehabilitation based on biofeedback training. The rate of anal incompetence (AI) after hemorrhoidectomy is 1.

[Surgical treatment of rectovaginal fistula with vaginal rectangular flap].

Objective: To evaluate the early and long-term outcomes of rectovaginal fistula closure with vaginal rectangular flap.

Material And Methods: There were 61 patients with rectovaginal fistula for the period 2012-2020. Median age of patients was 35 years [31; 48].

[Stimulating electroneuromyography in the diagnosis of neurogenic disorders of the pelvic floor muscles].

The article describes the technology for detecting and studying late phenomenon in stimulating electroneuromyography in order to objectively assess the state of innervation. The standard study of the motor response (M-response), Pudendal nerve terminal motor latency testing (PNTML), using the St. Mark's electrode from the external sphincter and pelvic floor muscles provides information only about efferent innervation at the distal part of the .

[Rehabilitation program for patients with low anterior resection syndrome].

Unlabelled: Surgical treatment of rectal cancer and sphincter-preserving low anterior resection results to evacuation disorders («low anterior resection syndrome» - LARS). There are no clinical recommendations for the treatment of patients with LARS as well as a rehabilitation program for them.

Objective: To develop a rehabilitation program for patients with low anterior resection syndrome.

ASSESSMENT OF DIRECT RESULTS OF CERVICAL CANCER COMBINED TREATMENT.

The aim of the study was to evaluate the immediate results of combined treatment of cervical cancer. This study included 177 patients with cervical cancer. The mean age of patients was 48.

Side-to-end vs. straight stapled colorectal anastomosis after low anterior resection: results of randomized clinical trial.

Aim: The aim of this study is to compare surgical, functional, physiologic outcomes and QOL after low anterior resection (LAR) with andside-to-end or straight colorectal anastomosis.

Method: Between 2012 and 2015, 86 patients with mid and low rectal tumors were enrolled into randomized trial. Wexner score, number of defecations, use of antidiarrheal medicine or laxatives, enemas, pads, episodes of nocturnal incontinence, and urgency were recorded.

NORMAL MEASUREMENTS OF PRESSURE IN ANAL CANAL DURING SPHINCTEROMETRY ON S4402 MSM AND WMP SOLAR GI DEVICES.

Aim: To assess normal measurements of pressure in anal canal during sphincterometry on S4402 MSM and WPM Solar GI devices.

Materials And Methods: The study included 126 patients with colonic polyps. inclusion criteria were absence of anal incon- tinence and defecation disorders.

A broadband imaging system for research applications.

We have developed a compact, computer-piloted, high sensitivity broadband imaging system for laboratory research that is compatible with various detectors. Mirror optics allow application from the visible to the far infrared spectral range. A prototype tested in conjunction with a mercury cadmium telluride detector exhibits a peak detectivity of 6.

Intersphincteric resection with partial removal of external anal sphincter for low rectal cancer.

Abdominoperineal resection (APR) remains the standard procedure for rectal cancer located within 0.5 cm from dentate line (DL). In this study, we present a new type of restorative surgery: intersphincteric resection with partial removal of external anal sphincter (EAS) and anorectal reconstruction for-ultra low rectal cancer.

Metabolism of lymphocytes in mice with Ehrlich ascites carcinoma.

The pattern of metabolic processes in lymphocytes of mice with Ehrlich ascites carcinoma depended on the stage of tumor growth.