[Contrast-enhanced ultrasonographic study in patients with lower limb arterial lesions].

Background: The introduction into clinical practice of contrast-enhanced ultrasonographic examination made it possible to assess patency of tibial arteries and perfusion of crural muscles in patients with occlusive lesions of lower-limb arteries. These findings are important for planning optimal treatment policy and assessing efficacy of operative or medicamentous treatment.

Objective: The study was aimed at investigating a possibility of contrast-enhanced ultrasound examination for assessment of patency of tibial arteries and quantitative assessment of perfusion of crural muscles in patient with occlusive lesions of lower-limb arteries.

[Use of an ex vivo technique in a patient with renal arteriovenous malformation in complication endovascular treatment].

Renal arteriovenous malformation is a rarely encountered disease characterized by the presence of a direct arteriovenous shunt between the renal artery and vein. This nosology was first described by Varela in 1928, and by 1997 the number of such cases amounted to slightly more than 200. Endovascular closure of a fistula seems to be an attractive method of treatment in view of low traumaticity and a short period of rehabilitation.

[Risk factors for aerostasis failure in case of lung resection].

The results of risk factors analysis of aerostasis failure in 141 patients are presented in the article. All patients were operated in the A.V.

[Diagnosis of neuroendocrine neoplasms of the pancreas].

The rare clinical case of multiple primary gastrointestinal stromal tumors (GIST) in one patient is presented in the article. The analysis of the available material confirmed that there is the problem of early detection of this type of tumors and their differential diagnosis. The minutes of outpatient radiological methods of research should include methods of identifying GIST in various locations.

[Diagnostics and tactics of gastrointestinal stromal tumor surgical treatment].

45 patients with gastrointestinal stromal tumors (GIST) were under observation. In 30 cases the GIST came from the stomach, in 8 cases - from the duodenum, and in 7 cases - from the small intestine. In all cases the diagnosis was confirmed by immunohistochemical study.

[Angiodysplasias of the head and neck: present-day principles of treatment using elements of plastic surgery].

The authors assessed the outcomes of treatment of fifty-one patients presenting with angiodysplasias of the head and neck. Of these, 24 patients suffered from the venous form and 27 had the arteriovenous form. The 51 patients accounted for 23.

[Problems of the diagnostics of perivascular epithelial cell tumors].

Perivascular epithelioid cell tumors is a group of rare tumors composed of histologically and immunohistochemically distinctive perivascular epithelioid cells. There are no specific imaging sighs. In most cases, the final diagnosis is possible only after the immunihistochemical study.

[Pancreatectomy for the pancreatic tumors].

23 pancreatectomies were made on the reason of various tumors of the pancreas during the period of 2009-2012yy. 15 patients had duct adenocarcinoma, 4 - neuroendocrine neoplasia, 2 - intraductal papillary-mucinous tumor, 1 had metastase of renal-cell carcinoma and 1 was diagnosed with serous cystadenoma. Pancreatectomy was indicated in case of invasion of the whole pancreas or in case of multiple tumor focuses.

[Possibilities of surgical management of paraganglioma of the neck extending to the base of the skull].

Presented in the article is a rare clinical case report concerning successful treatment of a female patient with vaginal paraganglioma of the neck - a tumour extending from the level of the trunk of the common carotid artery in cranial direction to the base of the skull. Mentioned are difficulties of carrying out an operational intervention requiring the use of certain surgical techniques. The tumour was removed as a single block with the involvement into the process of the major vessels of the neck and nervous formations.

[Comparative analysis of vascularization degree of hepatocellular carcinoma and focal nodular hyperplasia of the liver according to computed tomography and morphological studies].

Objective: A comparative analysis of the degree of vascularization of hepatocellular carcinoma (HCC) and focal nodular hyperplasia (FNG) of the liver at carrying out multislice computed tomography (MCT) and morphological studies.

Patients And Methods: 34 patients operated on for HCC (19 patients) and FNG of liver (15 patients) were survey. Preoperative we were analyzed four phases of CT-research: native, arterial, venous, delayed.

[The requirement for the CT-scan protocol for the proper assessment of pancreatic tumors resectability].

The study aims the determination of the CT-scan protocol for the proper assessment of pancreatic tumors respectability. The goal of the CT-scan is a proper visualization of the tumor spread onto the surgically important vessels of the hepatopancreatobiliary zone and remote metastases verification. The diagnostic algorithm of the pancreatic cancer is based on the analysis of the variety of cases and diagnostic means.

[The postoperative pancreatitis after the pancreatic surgery].

The results of 302 operations on the pancreas were analyzed: of them 107 were pancreatoduodenal resections; 67 were distal resections of the pancreas; 74 were various resections of the head of the pancreas and middle resections and 54 other operations. The postoperative pancreatitis was registered in 178 patients. The preventive use of the octreotide intraoperatively and in early postoperative period showed no influence on the frequency and severity of the postoperative pancreatitis.

[The intermediate and long-term treatment results of solid-pseudopapillary tumors of pancreas].

15 patients with solid-pseudopapillary tumors of the pancreas (SPTP) were investigated. There were no specific clinical signs of the disease revealed; the major common clinical sign was the upper abdominal pain. Of the diagnostic methods the ultrasound together with endoscopic ultrasound, computed tomography and magnetic resonance imaging were used.

[Ultrasound diagnosis of extrahepatic portal hypertension in chronic pancreatitis].

Aim: To evaluate the potential of the color duplex scanning in revealing of the portal hypertension in patients with chronic pancreatitis.

Materials And Methods: 94 patients with chronic pancreatitis were investigated. In 61 patients (65%) pancreatitis was complicated by extrahepatic portal hypertension (EHPH) and 31 patients (35%) were without signs of rising of the portal pressure.

[Intraductal papillary-mucinous tumor of the pancreas: difficulties and mistakes of diagnostics and treatment].

15 patients with intraductal papillary-mucinous tumors (IPMT) of the pancreas were observed. Clinical manifestation corresponded with chronic pancreatitis. Ultrasound study, including endosonography, contrast-enhanced computer and magnetic resonance tomography were used in complex observation of the patients.

[The virtual modeling of the robotic-assisted operations in abdominal surgery].

The experience of single institution of 43 robotic-assisted operations in the abdomen and retroperitoneal space has been analyzed. The problem of port placement conditioned the preoperative computed 3D-modelling of the operative course. The procedure allowed to optimize the movements of the robotic manipulators, decrease the risk of organ injury and overall incidence of intra- an postoperative complications.

[Computer--tomographic resecability criteria at cancer head of the pancreas].

Unlabelled: The aim of the study was to explore the possibilities of CT in evaluating resectability of pancreatic head adenocarcinoma, depending on the tumor.

Materials: The results of CT and intraoperative findings in 62 patients with cancer of the head of the pancreas.

Results: It was shown that the tumor localized in caudal glands, had higher resectability when compared with tumors of the cranial localization at tumor sizes of 3-4 cm in size tumor less than 3 cm, the probability that radical surgery was highest in patients with central localization of the tumor.

[Current trends in diagnosis and treatment of arteriovenous angiodysplasia].

A total of 240 patients with arteriovenous angiodysplasia (AVD) were examined and treated in A.V. Vishnevsky Institute of Surgery during 1997-2009.

[The role of multispiral computed tomographic coronarography].

The aim of the study was to assess the use of multispiral computed tomographic coronarography (MSCT-CG) in comparison with conventional coronary angiography. Overall 62 patients aged 45-72 years were examined, the MSCT-CG was conducted in 38 patients. The sensitivity of MSCT-CG was 92%, the specificity - 91,2%, in comparison with the CAG.

[Arterial celiac-mesenterial aberrations: comparative analysis of intraoperative data and CT-angiography].

137 CT-angiograms of arterial celiac-mesenterial vessels were pro- and retrospectively analyzed in 120 patients. Radiological data was compared with intraoperative anatomy during standard and extended pancreatoduodenal resections. The analysis showed a considerable variability in architecture of celiac and superior mesenteric artery branches: hereby, a classical arterial anatomy was found only on 55% of the analyzed CT-scans.