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The Russian consensus on the treatment of intrahepatic cholangiocarcinoma was prepared by the group of experts consisting of surgeons, interventional radiologists, radiation therapists and oncologists. The purposes of this consensus are clarification and consolidation of opinions of multidisciplinary team on the following issues of management of patients with intrahepatic cholangiocarcinoma: indications for surgical treatment, features of therapeutic tactics for mechanical jaundice, technical aspects of liver resection, prevention of post-resection liver failure, indications for liver resection using transplantation technologies, laparoscopic and robot-assisted liver resection, perioperative systemic chemotherapy, local non-resection/non-radiotherapy methods of treatment, radiotherapy, follow-up and choice of treatment for recurrence.

Aim: The assessment of pancreatic resection volume influence on exo- and endocrine pancreatic functions., Materials and Methods: The resected pancreatic volume influence was assessed in 47 patients: 31 (66%) patients after resections of pancreatic body and tail, and 16 (34%) patients after distal resections. The exocrine pancreatic function was assessed by pancreatic fecal elastase 1 as well as endocrine pancreatic function was assessed by C-peptide level measurement. Computed tomography with intravenous contrast enhancement and postprocessing was used for pre- and postoperative pancreatic volume assessment. All tests were performed before and 1, 3, and 6 months after surgery., Results: Type of surgery had no influence on C-peptide and pancreatic fecal elastase 1 levels ( p >0.05). Exo- and endocrine pancreatic functions markers tended to decrease in 1st month after surgery with consequent functions restoration towards 6 months after surgery. There were 15 (35.7%) patients from 42 patients with normal exocrine pancreatic function with a fecal elastase 1 level decrease to 114.7±61.8 μg/g; exocrine insuficiency remained only in 2 (4.8%) patients after 6 months after surgery. C-peptide concentration decrease before surgery to less than 1.1 ng/ml was noticed only in 8 (17%) patients. C-peptide concentration decreased in 30 (63.8%) patients in 1st month after surgery, but after 6 months after surgery, C-peptide level decrease was only in 7 (14.9%) patients., Conclusion: The exo- and endocrine function of the pancreas is restored in more than 80% of patients after DR. Probably it could be associated with the activation of the pancreatic compensatory abilities.

The article presents a clinical case of a 23-year-old patient with an extremely severe congenital form of chronic intestinal pseudoobstruction coupled with a neuromyopathy,colon malrotation, malabsorption, bacterial overgrowth syndrome, cholelithiasis and gastrostasis, which excluded bowel transplantation. Long-term treatment in the intensive care unit with combined, mainly parenteral nutrition for 6 months, using antibiotics, prokinetics, intestinal decompression allowed to achieve partial stabilization of the patients condition and transfer to home treatment with the continuation of adequate complex therapy.

The research was performed at the Loginov Moscow Clinical Scientific Center. It is based on Russian obstructive jaundice (OJ) consensus results, considered at the 45th annual Central Research Institute of Gastroenterology Scientific session Oncological issues in the gastroenterologist practice (1 March 2019). The article objective is to note the diagnostic and conservative treatment current issues in patients with OJ. The increase in the number of patients with OJ of different etiology provides problem actuality. In a large number of cases, medical treatment is delayed due to inadequate diagnostic and management, while correct patients routing today can be provided regardless of medical institution level. In this article the examination steps and conservative treatment role in patients with biliary obstruction management are presented.

Gastric cancer is one of the leading causes of cancer morbidity and mortality worldwide. It is common practice to use two classification systems: the Lauren classification system and the WHO classification of tumors in the morphological study of gastric carcinomas. Since 2010, the WHO classifications have included the term "poorly cohesive carcinoma", which refers to all diffuse forms of gastric cancer, including signet ring cell carcinoma and other subtypes. Despite this, the term has not been widely used in the world community, and it is almost not found in Russian literature. Only recently, after the publication of the 5th edition of the WHO classification (2019), there have been review articles where the term is used, but its name can be translated into Russian in different ways: poor-, weak -, low-adhesive, discogesive. The paper analyzes the Pubmed and Elibrary databases in order to find out the frequency of using various designations for diffuse gastric carcinoma, justifies the use of the term «poorly cohesive carcinoma», and proposes a variant of the term interpretation in Russian.

Aim: To assess the use of ERAS in laparoscopic Frey procedure., Material and Methods: From August 2012 to November 2017 laparoscopic Frey procedure were performed in 35 patients. Fully laparoscopic were performed 31 (88.5%) procedures. We use fast-track protocol from 13 patients. We included from statistic analyses patients where procedure was changed or was conversion or was simultaneous procedure. The total number of patients analyzed was 27. The patients were divided into two groups: I - before the fast-track protocol (n=11), II - after the protocol implementation (n=16)., Results: The operating time was 460 (365-530) minutes in I group and 420 (295-540) minutes in II group. Blood loss was 150 (5-300) and 150 (40-700) ml. The median postoperative stay period was 10 (5-25) days and 6.5 (3-11) days (p=0.007)., Conclusion: The combination of laparoscopic technologies and fast-track protocol reduces the duration of the postoperative stay period.

The Russian consensus on exo- and endocrine pancreatic insufficiency after surgical treatment was prepared on the initiative of the Russian "Pancreatic Club" on the Delphi method. His goal was to clarify and consolidate the opinions of specialists on the most relevant issues of diagnosis and treatment of exo- and endocrine insufficiency after surgical interventions on the pancreas. An interdisciplinary approach is provided by the participation of leading gastroenterologists and surgeons.

Aim: To assess an experience of robot-assisted liver resection using CUSUM-test., Material and Methods: The results of 46 robot-assisted liver resections were retrospectively analyzed by using of CUSUM-test., Results: There were 3 periods in development of the technology. The 1 st period - procedures with the lowest index of difficulty (n=16), the 2 nd period - expansion of the indications for difficult resections (n=18) and the 3 rd period - stabilization of the results (n=12). The dynamics of difficulty index, intraoperative blood loss, duration of procedure and morbidity (Clavien-Dindo Grade II-V) were evaluated. Five liver resections were needed to decrease blood loss and duration of the procedure. Expansion of indications was feasible after 16 procedures. Stable results were obtained after 34 liver resections.

Aim: To analyze the features and efficacy of laparoscopic Frey procedure., Material and Methods: For the period from August 2012 to May 2017 Frey procedure was carried out in 31 patients with chronic calculous pancreatitis Buchler type C. There were 20 men and 11 women aged 48.6±9 years. Mean pancreatic head dimension was 35.5±14 mm, diameter of the main pancreatic duct - 9.6±2.7 mm., Results: Completely laparoscopic procedure was made in 28 (90.3%) cases. One patient required intraoperatively Beger's technique without conversion. The last was need in 2 (6.5%) cases. Time of surgery and blood loss were 447.3±90.4 min and 215±177.7 ml respectively. Mean postoperative hospital-stay was 8.4±4.5 days. Postoperative complications occurred in 7 patients. Mortality was absent. Follow-up was 1-41 months. Recurrent pain syndrome was observed in 1 case. However, it was less severe and does not require analgesia.

Intrahepatic cholangiocarcinoma (ICC) is one of the most aggressive tumors associated with poor prognosis. Radical surgery is still the main method of treatment in resectable cases. Certain difficulties are observed in case of locally advanced tumors followed by inferior vena cava (IVC) and portal vein (PV) invasion., Aim: To analyze safety of advanced liver resections combined with great vessels repair for locally advanced large and multiple cholangiocellular carcinoma., Material and Methods: Since January 2014 till April 2017 eighty ICC patients have undergone advanced liver resection. There were 62 patients with portal cholangiocarcinoma and 18 with ICC. 4 ICC patients required vascular repair: IVC replacement in 2 cases (i.e. under venous bypass in 1 of them), tangential and circular resection of portal vein bifurcation - in 2 cases., Results: Postoperative complications Clavien-Dindo IIIa developed in all cases. There were no vascular complications. The length of hospital-stay was 14 - 35 days. There were no lethal outcomes. Annual survival was 50%, 2-year - 25%. Adjuvant chemotherapy was used in all patients., Conclusion: Advanced liver resection followed by IVC and PV repair for locally advanced ICC may be safely performed and subsequently allows chemotherapeutic treatment.

Pancreatology Club Professional Medical Community, 1A.S. Loginov Moscow Clinical Research and Practical Center, Moscow Healthcare Department, Moscow; 2A.I. Evdokimov Moscow State University of Medicine and Dentistry, Ministry of Health of Russia, Moscow; 3Kazan State Medical University, Ministry of Health of Russia, Kazan; 4Kazan (Volga) Federal University, Kazan; 5Far Eastern State Medical University, Ministry of Health of Russia, Khabarovsk; 6Morozov City Children's Clinical Hospital, Moscow Healthcare Department, Moscow; 7I.I. Mechnikov North-Western State Medical University, Ministry of Health of Russia, Saint Petersburg; 8Siberian State Medical University, Ministry of Health of Russia, Tomsk; 9M.F. Vladimirsky Moscow Regional Research Clinical Institute, Moscow; 10Maimonides State Classical Academy, Moscow; 11V.I. Razumovsky State Medical University, Ministry of Health of Russia, Saratov; 12I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia, Moscow; 13S.M. Kirov Military Medical Academy, Ministry of Defense of Russia, Saint Petersburg; 14Surgut State Medical University, Ministry of Health of Russia, Surgut; 15City Clinical Hospital Five, Moscow Healthcare Department, Moscow; 16Nizhny Novgorod Medical Academy, Ministry of Health of Russia, Nizhny Novgorod; 17Territorial Clinical Hospital Two, Ministry of Health of the Krasnodar Territory, Krasnodar; 18Saint Petersburg State Pediatric Medical University, Ministry of Health of Russia, Saint Petersburg; 19Rostov State Medical University, Ministry of Health of Russia, Rostov-on-Don; 20Omsk Medical University, Ministry of Health of Russia, Omsk; 21Russian Medical Academy of Postgraduate Education, Ministry of Health of Russia, Moscow; 22Novosibirsk State Medical University, Ministry of Health of Russia, Novosibirsk; 23Stavropol State Medical University, Ministry of Health of Russia, Stavropol; 24Kemerovo State Medical University, Ministry of Health of Russia, Kemerovo; 25N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia, Moscow; 26A.M. Nikiforov All-Russian Center of Emergency and Radiation Medicine, Russian Ministry for Civil Defense, Emergencies and Elimination of Consequences of Natural Disasters, Saint Petersburg; 27Research Institute for Medical Problems of the North, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk; 28S.P. Botkin City Clinical Hospital, Moscow Healthcare Department, Moscow; 29Tver State Medical University, Ministry of Health of Russia, Tver The Russian consensus on the diagnosis and treatment of chronic pancreatitis has been prepared on the initiative of the Russian Pancreatology Club to clarify and consolidate the opinions of Russian specialists (gastroenterologists, surgeons, and pediatricians) on the most significant problems of diagnosis and treatment of chronic pancreatitis. This article continues a series of publications explaining the most significant interdisciplinary consensus statements and deals with enzyme replacement therapy.

The review of modern achievements in morphology and genetic characteristics of pancreatic tumors with ductal phenotype is presented. Problems of intraductal pancreatic neoplasia (PanIN) as precancerous process for ductal adenocarcinoma are considered in detail.

Experience of spiral computed tomography with bolus contrast enhancement and subsequent 3D-reconstruction of picture for virtual modeling of surgeries is presented. The method was used in 204 patients with tumors and diseases of the liver, pancreas, spleen, kidneys, adrenal glands, parapapillary diverticula of the duodenum, coarctations and aneurysms of aorta, extraorganic tumors of the retroperitoneal cavity and neck. Coincidence of virtual and real types of surgeries reached 75-92.8% depending on the disease and clinical situation. Perspectives of 3D-reconstruction for evaluation of normal and pathologic anatomic features in an individual patient, choice of an optimal surgical variant, prognosis of possible complications and their prophylaxis are demonstrated. Integration of surgeon's and radiologist's thinking is very important for correct diagnosis and surgical policy.

Patients with combined diseases of the kidney, organs of abdominal cavity and retroperitoneal space require original decisions in the choice of surgical approach and sequence of interventions on different organs. The experience of one-stage combined nephrectomies and kidney resections in 36 patients with lung, stomach, intestine, liver and other organs' diseases are presented. 11 patients had primary renal carcinoma, the kidneys were affected by other malignant tumors in 15 patients. Primary benign processes in the kidneys were found in 3 patients and also in 7 patients these processes were the consequence of earlier performed operations. Interventions on 3-6 organs were necessary in 11 cases. It makes sense to begin one-stage combined transperitoneal interventions with "clean" stages--without section of gastrointestinal tract's lumen. 1 patient died because of peritonitis due to insufficiency of sutures of colon anastomosis. The follow-up ranged from 6 months to 12 years. The recurrences and metastases were found in 9 operated patients within 7 to 20 months, and there were no symptoms of diseases in 24 patients. It is concluded that extended radical one-stage operations on the organs of abdominal cavity and retroperitoneal space combined with operations on the kidney are endurable and effective if the surgical technique is thorough.

Plasma-membrane-enriched particles isolated from the tissues of malignant tumors of different sites are shown to accumulate ATP under the influence of polypeptide growth factors and cytokines whose receptors have a tyrosine kinase activity. Polypeptide growth factors, such as EGF, FGF, NGF, TNF, insulin, and the cytokine IL-2, were studied on the accumulation of adenosine-5'-triphosphate (ATP) by the preparations of plasma-membrane-enriched particles isolated from the target tissues of human malignant tumors. The tumor (transformed) cell plasma membranes of the lung, bowel, stomach, pancreas, as well as the cells of neurinoma and a retroperitoneal extra-organ malignant tumor (leiomyosarcoma) are demonstrated to be able to synthesize ATP from inorganic phosphate and ADP under aerobic conditions human with the participation of the cyanide-insensitive proton phoric NADH-bound transversely oriented chain. Signal-stimulated accumulation of plasma membranous ATP was found to increase in the tissues in malignant transformation as compared to that in normal tissues. Experiments using selective inhibitors of tyrosine kinases (tyrphostin-25, quercetin) indicated the involvement of plasma membranous signal-transducing ATP in the activation of receptor tyrosine kinase growth factors.

Ceftriaxone was administered intravenously in a single dose of 1.0 g 15 minutes prior to surgical intervention for peptic ulcer and gastric or duodenum tumor in 31 patients at the age of 33 to 74 years. In all the patients primary adhesion of the surgical wound was recorded. No signs of local or general infection were observed. The indices of the total blood count, urinalysis and blood biochemical analysis came to normal by the 5th or the 7th day of the postoperative period. The levels of ceftriaxone in the blood, urine, stomach wall, small intestine tissues and subcutaneous fat were evaluated. The indices of the cellular and humoral immunity in the pre- and postoperative periods in the patients prophylactically treated with ceftriaxone were analyzed.

The analysis of our own country and foreign literature, devoted to the problems of clinical aspects, diagnosis and treatment of leiomyomas of the small bowel for the last 48 years has been carried out. The authors present their personal experience in follow-up of 6 cases of the small bowel leiomyomas, the main clinical manifestations of which being recurrent intestinal bleedings and in lesser degree--small bowel obstruction. The results of preoperative examination evidence that besides thorough physical, endoscopical and ultrasound examination the necessity may arise to use for diagnosis angiographic and computed-tomographic methods. The subject of special attention of each clinical physician should be the danger of malignant transformation of benign leiomyomatous neoplasms of the small bowel, which the authors encountered in 2 patients.

3 clinical cases and literature data, illustrate effective diagnostic and surgical policy in patients with uncommon type of tumor. Two patients were previously operated in other clinics, but the operations were diagnostic because the tumors were estimated as being inoperable. In all 3 patients radical operations were carried out with resection of infrarenal segment of inferior cava vein without its prosthetic reconstruction. In did not result in substantial blood flow disturbances, because before the operation it was known about the presence of well functioning collaterals. The significance of ultrasound examination, especially duplex scanning, computer tomography and angiography (cavagraphy) is emphasized. Favourable results of treatment, especially conclusion of the tumor resectability are more common in specialized institutions.

The authors present an original experience of using an ultrasonography and a computer scan for a preoperative diagnosis of VP mucocele. The laparoscopy has been used as a method for the final diagnosis as for an appendectomy. The authors also describe their understanding of VP mucocele pathogenesis and their opinion about diagnosis and treatment of such kind of a case.

Combination of severe purulent processes (peritonitis, phlegmons, and extensive wounds of the abdominal wall), eventration, and complete high unformed intestinal fistulas leads to rapid hemostasis disorders and emaciation. In nonoperative treatment lethality reaches 70%. Complete bilateral disconnection of the fistula bearing intestinal loop is the operation of choice in such situations. In this case the length of the disconnected intestinal segments may be two thirds of the length of the jejunum and the greater part of the colon. The results of morphofunctional study of an intestinal segment disconnected for a long period are analysed. The tactics of active surgical treatment is illustrated by clinical cases.

The comparative analysis of the influence on the glucose metabolism of rats in acute pancreatitis of synthetic analogues was made: somatostatin, calcitonin, leu-enkefalin-dalargin. It was shown that dalargin has the maximum normalizing effect as a result of its antistress qualities. Physiological reaction of beta-cells is preserved in infusion of somatostatin. However, infusion of calcitonin results in the distortion of counterregulatory action of insulin and glucagon.

A rare observation of the gall bladder polyposis in a woman of 56 with clinical symptoms of chronic cholecystitis is described. In this case, polyposis of the gall bladder was combined with extensive extra- and intrahepatic lithiasis. The observation is compared with reports in the literature.