Laparascopic-assisted endoscopic mucosal resection of a polyp in sigma and laparoscopic right hemicolectomy for adenocarcinoma in colon ascendens - case report

Today, endoscopic polypectomy has become a daily-performed routine procedure in the operating room. Almost every polyp in the colon can be removed endoscopically, but there are some problematic adenomas which are either large in size or difficult to approach. We present 80 years old white woman with a tubulo­villous adenoma with high-grade dysplasia on a flat surface located in sigma with 4 x 5cm in size and also synchronously found in colon ascendens a well differentiated G1 adenocarcinoma with 2 x 2cm in size on a flat surface. The abdominal ultrasound did not find any liver metastases. Because of the difficult location and the size of the two lesions in the right and left colon, we make a decision for a laparoscopic-assisted en­doscopic mucosal resection (piece-meal) of the polyp in sigma and for the adenocarcinoma in colon ascen­dens the procedure was followed by laparoscopic right hemicolectomy in one step approach. The both inter­ventions were performed without complications and good postoperative period. Hybrid endoscopic and lap­aroscopic interventions are very effective approach that can resect large tubulovillous polyps and adenocar­cinoma of the colon, with a lesser risk of complications. Combining the methods in one surgery save time, make endoscopy more easy to perform and can save one-half of the colon in cases of synchronous lesions of the colon. Scr Sci Med 2017; 49(3): 49-5

A COMPARATIVE ANALYSIS BETWEEN TWO TYPES OF DATA PROCESSING OBTAINED THROUGH UAV FROM A ORGANICAL FIELD WITH EINKORN (TRITICUM MONOCOCCUM L.)

The aim of the present study is to determine which type of data processing obtained from an unmanned aerial vehicle (UAV) is more suitable for predicting the yields of the eikorn crop grown under organic farming conditions. The comparison is made between data obtained from the UAV at the pixel level of 7 × 7 cm and when aggregating the pixels to a pixel size of 1 × 1 m. The experiment was conducted during the agricultural year 2020–2021 on a certified organic field located in the municipality of Parvomai, Plovdiv region

Laparoscopic Treatment Of High Sigmoidovaginal Fistula. Case Report

Rectovaginal and/or colovaginal fistulas are difficult-to-treat conditions that can cause vaginitis, abnormal flatulence through the vagina, skin excoriations, and more. Depending on the type of fistula, they can be rectovaginal, anovaginal, colovaginal, enterovaginal, vesicovaginal, ureterovaginal, urethrovaginal, with the most common being vesicovaginal and rectovaginal. In most cases, these conditions present a challenge and require a comprehensive diagnostic approach and treatment. We present a clinical case of a 73-year-old patient manifesting with flatulence through the vagina. During hospitalization, a high sigmoidovaginal fistula was diagnosed. The patient has a history of hysterectomy 17 years ago, due to myomatous uterus. Subsequently, she had three operations for postoperative hernia, two of which involved the placement of synthetic mesh. During the diagnostic plan, diverticulosis of the colon was also detected. This was observed as probable etiological cause for the formation of the fistula. The patient had comorbidities: arterial hypertension and severe obesity (Grade III). A laparoscopic disconnection of the fistula was performed, followed by laparoscopic suturing of the vagina and sigmoid colon, with subsequent omentoplasty. After an uncomplicated postoperative period, the patient was discharged on the 5th postoperative day, fully mobilized, with restored gas and feculent passage. There are few cases of high sigmoidoaginal fistulas described in the medical literature. The treatment in such patients is still unclear and subject to discussion. With the advancement of minimally invasive techniques in medicine, the laparoscopic surgical approach is a suitable option for treatment, but long-term follow-up and in-depth analyses are necessary

Late Diagnosis of Urinary Peritonitis Due to a Lesion of the Left Ureter During Laparoscopic Anterior Resection of the Rectum—Laparoscopic Solution. Clinical Case and Literature Review

Ureteral lesions are a rare complication of colorectal surgery. This type of surgical procedure is the second most common cause of such complications, second only to gynecological operations, which account for around 50%. According to the localization of the lesion, they аre grouped into three types: injury to the proximal, middle, and distal part of the ureter, with the latter being the most common—around 80–90%. Most of the lesions are not recognized intraoperatively and sometimes the diagnosis can be delayed significantly. The time of diagnosis and the localization of the injury are crucial to the choice of treatment. We present a case of a patient, with a late diagnosis of lesion of the left ureter after the laparoscopic anterior resection of the rectum, which was treated with a laparoscopic uretero-ureteral anastomosis with simultaneous double-J catheterization. We also present a short literature review on the subject

Prof. DSc Hernani Borisov Spiridonov (28 July 1935 – 21 June 2018). Рrominent Bulgarian Geomorphologist, Geotectonist and Specialist in Remote Sensing on the Earth

This paper presents the biography of the scientist Professor DSc Hernani Borisov Spiridonov. July 2020 marks the 85th anniversary of his birth. His scientific achievements are related to geomorphology, geotectonics and the development remote sensing methods, He is one of the founders of the scientific major Remote Sensing of the Earth from Space in Bulgaria

Single- and Multi-Date Crop Identification Using PROBA-V 100 and 300 m S1 Products on Zlatia Test Site, Bulgaria

The monitoring of crops is of vital importance for food and environmental security in a global and European context. The main goal of this study was to assess the crop mapping performance provided by the 100 m spatial resolution of PROBA-V compared to coarser resolution data (e.g., PROBA-V at 300 m) for a 2250 km2 test site in Bulgaria. The focus was on winter and summer crop mapping with three to five classes. For classification, single- and multi-date spectral data were used as well as NDVI time series. Our results demonstrate that crop identification using 100 m PROBA-V data performed significantly better in all experiments compared to the PROBA-V 300 m data. PROBA-V multispectral imagery, acquired in spring (March) was the most appropriate for winter crop identification, while satellite data acquired in summer (July) was superior for summer crop identification. The classification accuracy from PROBA-V 100 m compared to PROBA-V 300 m was improved by 5.8% to 14.8% depending on crop type. Stacked multi-date satellite images with three to four images gave overall classification accuracies of 74%–77% (PROBA-V 100 m data) and 66%–70% (PROBA-V 300 m data) with four classes (wheat, rapeseed, maize, and sunflower). This demonstrates that three to four image acquisitions, well distributed over the growing season, capture most of the spectral and temporal variability in our test site. Regarding the PROBA-V NDVI time series, useful results were only obtained if crops were grouped into two broader crop type classes (summer and winter crops). Mapping accuracies decreased significantly when mapping more classes. Again, a positive impact of the increased spatial resolution was noted. Together, the findings demonstrate the positive effect of the 100 m resolution PROBA-V data compared to the 300 m for crop mapping. This has important implications for future data provision and strengthens the arguments for a second generation of this mission originally designed solely as a “gap-filler mission”

A Comparative Quantitative Analysis of the Postnatal Changes in the Myocardium of the Left and Right Ventricles in Rats

Background: The growth of the heart during the foetal and early postnatal development takes places mainly due to hyperplasia. The late postnatal development is characterised by cardiomyocytic hypertrophy in response to normal physiological mechanisms and increased load. To study the cell size most authors measure the diameter either directly or indirectly