Biomedical subjects
Publications and source records attributed to M Pavlov.
Plantago ovata is a high fibre bulk forming laxative. It absorbs water and expands to provide increased bulk and moisture content to the stool. The increased bulk encourages normal peristalsis and bowel motility. Clinical Indications: Constipation, Fecal Incontinence, Hemorrhoids, Ulcerative Colitis, Appetite, Hyperlipidemia, Diabetes mellitus.
The aim of this study is to present our experience in the diagnosis and treatment of pancreatic pseudocysts. A pancreatic pseudocyst is an incapsulated collection of pancreatic juice, enclosed by nonepithelial elements, containing a high concentration of pancreatic enzymes, bicarbonates and necrotic detritus. It is a common complication of acute pancreatitis and trauma of the pancreas. In the period between 1996 and 2001, 53 surgical procedures were performed for pancreatic pseudocyst at the Institute for Digestive Diseases (First Surgical University Hospital), 35 male patients (67%) and 17 female patients (33%) underwent surgery. In 39 (75%) patients the method of choice was cystojejunostomy by Roux. In 4 cases distal pancreatectomy for pseudocysts localized within the pancreatic tail was performed, complete pseudocyst excision only was performed in one case and complete pseudocyst excision combined with cystojejunostomy was also performed in one case. Cystogastrostomy and drainage in one case and partial cystectomy and drainage also in one case. Surgical internal drainage is the method of choice for the treatment of pancreatic pseudocysts, involving low morbidity and mortality rates.
The aim of this study is to describe a role of diosmine in the management of bleeding nonprolapsed hemorrhoids. From November 2003 to January 2004, 60 patients were treated with Phlebodia (diosmine). Total colonoscopy was performed at the discretion of the authors according to the age, symptoms and genetic factors of the patient. Patients were treated with Phlebodia (diosmine, 3x1, 5 days) and in addition a bulk agent (3,26 g plantago ovata sachet, twice daily, for the period of next three months). Hemorrhoidal bleeding stopped after 3,2 days. Diosmine, used with fiber supplements, rapidly and safely stops bleeding from nonprolapsed hemorrhoids.
The aim of this prospective randomized study is to describe the effects of laxative plantago ovata after open hemorrhoidectomy (Milligan-Morgan). Sixty patients divided into 2 equal groups were included in this study. The first group was treated postoperatively with 2 sachets of bulk agent Laxomucil (3.26 g plantago ovata), twice daily, for a period of twenty days, while the control group was treated with glycerin oil. The p.ovata group patients had a statistically significant shorter postoperative length of hospital stay (2.9 v.s. 4.1 days). Pain after stool was statistically significant more tolerable in the p.ovata group. In conclusion, the application of bulk agent plantago ovata after hemorrhoidectomy shortens the mean postoperative hospital stay, expedites digestive function recovery and lessens the pain after stool.
The aim of this work is to present existence of the lateral lymphatic spread of metastases in patients with Dukes C low rectal carcinoma (60% of all patients), located at or bellow peritoneal reflexion. Prospective clinical investigation analyzed the group of 64 patients (32 underwent lateral lymphadenectomy and 32 didn't), all treated at Ist Surgical Clinic, Clinical Center of Serbia. Lateral lymphatic spread of metastases was proven by frozen section in 8 cases, so extensive lateral lymphadenectomy was performed. In the group of patients who underwent lateral lymphadenectomy, positive lymph nodes were registered in 18 patients (56.2%); in group of patients operated without lateral lymphadenectomy, metastatic lymph nodes were registered in 12 patients (37.5%). According to results of this investigation, method of lateral lymphadenectomy, as well as extensive lateral lymphadenectomy, is significant for exact determination of postoperative stage of the disease. Also, there is a significant increase in number of patients with Dukes C stage of the disease. In those patients, mesorectectomy alone is not sufficient.
The aim of the study is detection of the recurrences and metastases of colorectal carcinomas using (111)In labelled antibodies B72.3 in 14 patients. With tomography, we can access better distinction of tumour in comparison to other structures and estimation of its size. Other imaging methods (CT, US) have advantage in detection of liver metastases, while immunoscintigraphy is more specific for the assessment of malignant abdominal tumours and extrahepatic metastases. The first results point out that Oncoscint CR-103 can be useful in diagnosis of recurrences and metastases of colorectal carcinoma, viability assessment after radiotherapy and in the choice of the adequate surgical treatment in dependence of the spread of the disease.
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Female patient, 68, hospitalized due to vaginal bleeding, anaemia and defecation disorder. We have done examinations as follows: clinical and laboratory exams, which confirmed severe anaemia. Explorative curretage of uterus--PH findings: malignant tissue. Rectoscopy: extraluminal compression at lo cm from the anal verge. Irigography: spasticity and extraluminal compression to proximal third of rectum and distal sigmoid colon. Ultrasound of abdomen: solid lobular formation 10 x 7 cm in diameter, on the left side of the urinary bladder, surrounded by thin layer of ascites. Ultrasound of liver: without signs of malignant disease. CT-scan of pelvis and abdomen: metastatic lymph nodes, up to 40 mm in diameter, alongside abdominal aorta; solid-lobular tumor, 10 x 7 cm, on the left side of urinary bladder, which fills the central portion of pelvic cavum. Secundary malignant deposits on the pelvic parietal peritoneum with minimal quantity of ascites (peritoneal carcinomatosis). Intraoperative findings confirmed malignant deposits on the right colon serosa, so we performed right hemicolectomy with ileo-colo anastomosis, omentectomy, hysterectomy, bilateral adnexectomy, low anterior resection of the rectum, peritonectomy of pelvis and reconstruction of digestive tubus by colo-rectal anastomosis with circular stapler ILS 33. Duration of operation was 6:45 hours, blood loss was 1100 ml. Intraoperatively was intraperitonealy applicated Adriamycin. One month after the operation, systemic chemotherapy consisting of Endoxan and Karboblastin was administered, for the duration of 6 months, once monthly. Twelve months after the operation NMR showed normal findings, patient was without evidents of recurrent disease.
Pelvic exenteresis (total, anterior and posterior) is operative procedure reserved for the local advanced malignancies of the pelvis. In the period 1995-2001, we have treated 54 patients (20 male, 34 female) by this procedures. By anterior pelvic exenteresis we have treated 6 females for: Ca vesicae urinary (4 pts). Ca PVU after irradiation therapy (1 patient), Ca urethrae (1 patient). By posterior pelvic exenteresis we have treated 2 females for primary advanced Ca of the rectum. By total pelvic exenteresis we have treated 46 pts (20 male, 26 female): Ca PVU after irradiation therapy (10 females), recidivant Ca PVU (8 females), primary advanced Ca of the rectum (7 male, 1 female), recidivant Ca of the rectum (10 male, 7 female), recidivant Schwanoma (1 male), recidivant Sa stromae endometrii (1 female), recidivant Ca vesicae urinary (1 female). The median survival time of all 54 patients was 24 months. Early postoperative mortality was 18% (10 pts). Twenty patients died with median survival of 18 months (range 4-48 months). Twenty one patients are alive without evidence of disease with median follow up period of 41 months (range 6-60 months). Three patients were lost from follow up. Exenteresis pelvis is very complicate operative procedure and it should be limited to perform only in couple surgical centers.
We describe three groups of small angle neutron scattering (SANS) experiments with translating ribosomes: 1) regular protonated (normal abundance hydrogen) particles; 2) two isotopic hybrid particles which are reconstituted from one protonated and the other deuterated subunit; 3) four isotypic hybrid particles differing from each other by the extent of protein and RNA deuteration. Using the SANS contrast variation method the radii of gyration of protein and RNA components in both ribosomal subunits as well as the intersubunit distance in the pre- and post-translocation states were determined. The results obtained suggest the following model of the ribosome as a dynamic machine. The ribosome oscillates between two major conformers differing in geometrical dimensions. The 'active' (pulsating) part of the ribosome is the 30S subunit. We believe that the movement of its 'head' relative to the passive 50S subunit is the main mechanical act of translocation. The radius of gyration of the 30S subunit and the intersubunit distance change upon the movement. This is corroborated by neutron scattering data.
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Cleansing and prophylactic disinfection were carried out on a premise for nursing sows with 31 raised boxes over a flooring area of 250 m2. The effect of these treatments was ascertained through bacteriologic investigations of impression preparations and washings taken by means of cotton swab. It was found that cleaning and washing with a water jet at 40 atm. pressure led to 96.58 per cent drop of the total microbial count of the air, while disinfection with 3 per cent water solution of sodium hydroxide resulted in 98.73 per cent drop. Surface coli bacteria dropped by 66.70 per cent, and staphylococci--by 78.50 per cent, however, both species of organisms were totally destroyed with disinfection.