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Estimation of physiologic ability and surgical stress system (E-PASS) has been shown to be effective in predicting morbidity after surgery for perihilar cholangiocarcinoma (PHCC). Nevertheless, E-PASS does not include an assessment of the disease specific risk factors. The aim of the study was to estimate the combined impact of E-PASS and specific preoperative factors on major morbidity for PHCC patients.A retrospective analysis of a prospectively collected data was performed. Severe morbidity according to complication comprehensive index was defined as ≥40 points. A value of comprehensive risk score (CRS) ≥1 was taken as critical.Multivariate analysis of perioperative data from 122 patients revealed significant impact of five factors (CRS ≥1, future liver remnant volume50%, T4 stage, moderate and severe cholangitis, INR) on the risk of severe morbidity after resection. The AUC for the combination of these factors was classified as good predictive value (0.810, 95% CI 0.729-0.891) and poor predictive value (0.673, 95% CI 0.573-0.773) for CRS alone (p = 0.040).A combination of E-PASS with disease specific risk factors is a reliable predictive model for major morbidity for patients undergoing radical surgery for PHCC.

The diffusion of laparoscopic radical surgery for hydatid liver echinococcosis remains limited. There are no published data on a comparative analysis of the immediate and long-term results of radical and conservative laparoscopic surgery for liver hydatid cysts. Comparison of the immediate and long-term outcomes after laparoscopic radical and conservative cystectomies was aimed. HPB center (Center 1) and general surgery hospital in an endemic area (Center 2) participated in a retrospective study. Radical surgery included total, subtotal pericystectomy, and liver resection. Conservative surgery comprised cystectomy without/with partial pericystectomy. The total number of patients who underwent surgery for liver hydatid cysts was 213. Laparoscopic cystectomy was performed in 106 (50%) patients. This number included 47 radical laparoscopic cystectomy (Center 1). Conservative laparoscopic procedures were used in 59 patients (Center 2). Finally, twenty-seven pairs of patients were matched. Immediate outcomes were better for radical treatment in terms of severe morbidity, length of hospital stay, and time of abdominal drainage before and after PSM. The mean follow-up length was 23 (4–66) and 29 (6–66) months and the recurrence rate was 2% and 5% in groups of radical and conservative treatment respectively. No differences were found in 1-, 3-, and 5-year disease free survival. After second PSM for recurrence, 20 pairs were matched with no relapse of disease. Laparoscopic radical surgery leads to the better immediate outcomes and can be recommended as the preferred treatment option in a specialized HPB center. Conservative option is justified in general hospitals in endemic area for selected uncomplicated cysts.

Laparoscopic liver resection (LLR) of posterosuperior segments (PSS) is still technically demanding procedure for highly selective patients. There is no long-term survival comparative estimation after LLR and open liver resection (OLR) for colorectal liver metastases (CRLM) located in PSS. We aimed to compare long-term overall (OS) and disease-free survival (DFS) after parenchyma-sparing LLR with expanding indications and open liver resection (OLR) of liver PSS in patients with CRLM. Two Russian centers took part in the study. Patients with missing data, hemihepatectomy and extrahepatic tumors were excluded. One of contraindications for LLR was suspicion for tumor invasion in large hepatic vessels. Logistic regression was used for 1:1 propensity score matching (PSM). PSS were resected in 77 patients, which accounted for 42% of the total number of liver resections for CRLM. LLR were performed in 51 (66%) patients. Before and after matching, no differences were found between groups in the following factors: median size of the largest metastatic tumor; proximity to the large liver vessels; the rate of anatomical parenchyma sparing resection of PSS; a positive response to chemotherapy before and after surgery. Regardless of matching, the size of the largest metastases was above 50 mm in more than one-third of patients who received LLR. Before matching, intraoperative blood loss, ICU stay and hospital stay were significantly greater in the group of OLR. No 90-day mortality was observed within both groups. There were no differences in long-term oncological outcomes: 5-year OS after PSM was 78% and 63% after LLR and OLR, respectively; 4-year DFS after PSM was 27% in both groups. Laparoscopic parenchyma-sparing resection of PSS for CRLM are justified in majority of patients who have an indication for OLR if performed in high volume specialized centers expertized in laparoscopic liver surgery.

Background Percutaneous radiofrequency‐assisted liver partition with portal vein embolization in staged liver resection (PRALPPS) represents an alternative to portal vein embolization (PVE) followed by major liver resection in patients with perihilar cholangiocarcinoma. Methods This was an observational case–control study. Both procedures were applied in patients with a future liver remnant (FLR) volume of less than 40 per cent. The main end points of the study were short‐term morbidity and mortality for the two procedures. The study also compared the efficacy of the preresection phases estimated by kinetic growth rate (KGR), time interval and degree of hypertrophy of the FLR. Results The first phase (preresection) was completed in 11 and 18 patients, and the second phase (resection) in nine and 14 patients, in the PRALPPS and PVE groups respectively. Major morbidity after the first stage did not differ between the groups. There were no differences in blood loss, severe morbidity or liver failure rate after the second stage, with no deaths. The mean KGR of the FLR after the preresection phase for PRALPPS was 3·8 (0·6–9·8) per cent/day, and that after PVE was 1·8 (0–6·7) per cent/day (P = 0·037). The mean time interval for FLR hypertrophy in the PRALPPS and PVE groups was 15 (6–29) and 20 (8–35) days respectively (P = 0·039). Conclusion Short‐term outcomes were similar for PRALPPS and PVE in terms of safety. Remnant hypertrophy was achieved more rapidly by PRALPPS., Percutaneous radiofrequency‐assisted liver partition with portal vein embolization in staged liver resection (PRALPPS), modIfied ALPPS with reduced surgical trauma on the first stage, was used in 11 patients with perihilar cholangiocarcinoma. PRALPPS did not differ from portal vein embolization (PVE) in terms of morbidity or mortality. The kinetic growth rate and mean time interval for future liver remnant hypertrophy in the PRALPPS group were significantly better than those in the PVE group. Similar complication rates and outcomes

Objective. To estimate the short-term results of modified variant of ALPPS (PRALPPS) in patients with perihilar and intrahepatic cholangiocarcinoma.Material and methods. Procedure was indicated for future liver remnant Results. PRALPPS was applied in 13 patients and completed in 10 patients. Degree of hypertrophy and kinetic growth rate were 48 and 4.3%/day respectively. Major morbidity (>II) after the stage 1 and 2 was presented in 3 (only IIIa) and 7 patients, respectively.Conclusion. PRALPPS may be considered as an effective and safe procedure in patients with perihilar and intrahepatic cholangiocarcinoma.

Background No prospective randomized trials comparing transection techniques for the liver parenchyma transection during laparoscopic liver resection have been performed. The aim of the study was to compare the immediate outcomes of hydro-jet dissection with ultrasonic surgical aspirator in laparoscopic liver parenchyma transection in a prospective randomized single-center study. Methods Consecutive patients with liver benign and malignant tumors presenting to a single center from May 2017 to May 2020 were enrolled in the study. The primary endpoint was the intraoperative estimated blood loss. The secondary endpoints included duration of parenchymal transection, morbidity, and overall hospital stay. Results A total of 68 patients were enrolled in the study, with 34 patients in each group. There were no differences between groups in the difficulty of resection (according to IWATE criteria and IMM score) and other basic surgical parameters. No differences were found in all primary and secondary endpoints except the expenditure. The cost of equipment was significantly higher in the group of ultrasonic aspirator. Conclusion Despite the wider use of the ultrasonic aspirator in laparoscopic liver surgery, hydro-jet and ultrasonic surgical aspirators have shown similar efficacy and safety for transection of the liver parenchyma during laparoscopic resection.

Introduction:Due to anatomical and functional specifics of the pancreas, its surgery emerged somewhat later than that of other areas of abdominal surgery, i.e. in the last 25 to 30 years of the last century. Minimally invasive laparoscopic interventions on the pancreas are still used insufficiently.Aim: To evaluate an 11-year experience of various laparoscopic interventions in the pancreas accumulated by one surgical team.Materials and methods:From November 2007 to May 2018, 371 patients (153 male and 218 female) underwent various laparoscopic pancreatic procedures for cancers of the biliopancreatoduodenal zone (n = 260), benign pancreatic tumors (n = 37), and chronic pancreatitis (n = 74). We performed 245 laparoscopic pancreaticoduodenal resections, 52 laparoscopic distal resections (LDR), 35 laparoscopic Frey procedures (FP), 18 laparoscopic total duodenopancreatectomies, 8 laparoscopic longitudinal pancreaticojejunostomies (LLPJ), 8 laparoscopic cystoenterostomies (LCE), 3 enucleations, and 2 Beger procedures (BP).Results:Laparoscopic gastropancreatoduodenal resection was performed in 197 (80.4%) cases and pylorus preserving pancreatoduodenal resection in 48 (19.6%) cases. The duration of the procedures was 412 ± 101 minutes, with blood loss volume of 220 ± 152 ml, and postoperative hospital stay of 19 ± 9 days. LDR was done laparoscopically in 50 (96.2%) patients; its duration was 228 ± 74 minutes, blood loss 40 ± 50 ml, and postoperative hospital stay 8 ± 5 days. FP, LLPJ, BP, and LCE were performed laparoscopically in 53 (93%) cases. FP lasted for 436 ± 95, LLPJ for 406 ± 82, BP for 585 ± 134, and LCE for 327 ± 90 minutes. The respective volumes of blood loos were 227 ± 217 mL in FP, 150 ± 156 mL in LLPJ, 175 ± 106 mL in BP, and 60 ± 90 mL in LCE. The postoperative hospital stay lasted for 8 ± 4 days after FP, 9 ± 7 days after LLPJ, 4.5 ± 0.7 days after BP, and 10 ± 9 days after LCE.Conclusion:Laparoscopic surgery of the pancreas is associated with minimal blood loss, absence of wound infection, and more rapid patient activation and rehabilitation. Compliance with the necessary requirements to implementation of laparoscopic technologies in high-volume centers should improve surgical results.

Aim. To analyze complications of percutaneous transhepatic cholangiostomy depending on biliary obstruction level and drainage type.Material and methods. Percutaneous transhepatic biliary drainage was carried out in 974 patients with mechanical jaundice of different genesis. External drainage was predominantly performed for distal obstruction, external-internal suprapapillary – for proximal obstruction. Strictures of biliodigestive anastomosis were managed using percutaneous balloon dilatation and long-term external-internal drainage.Results. Overall morbility was 19.1%. Significant relationship between morbidity and obstruction level, drainage type and tubes quantity was detected. Drainage tube dislocation was the most common drainage-related complication both in proximal and distal obstruction. External-internal transpapillary drainage was followed by suppurative cholangitis and acute pancreatitis in 81.5% of cases. External-internal suprapapillary drainage was accompanied by acute cholangitis in 17.1% of patients and was determined by disconnection of subsegmental ducts that required additional drainage tubes placement. In most cases, complications were corrected by minimally invasive surgery and nonsurgical treatment. Overall mortality was 1.3% (0.3% in cases of distal obstruction and 1.8% in cases of proximal obstruction).Conclusion. Percutaneous transhepatic biliary drainage is a routine non-traumatic method of biliary decompression that may be successfully used irrespective to obstruction level and cause of jaundice. External-internal suprapapillary drainage is preferable for proximal biliary obstruction while external-internal transpapillary drainage should be avoided.

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.Российский консенсус по диагностике и лечению хронического панкреатита подготовлен по инициативе Российского 'Панкреатологического клуба' с целью выяснения и консолидации мнений отечественных специалистов (гастроэнтерологов, хирургов и педиатров) по наиболее важным проблемам диагностики и лечения хронического панкреатита. Настоящая статья продолжает серию публикаций, разъясняющих наиболее важные положения междисциплинарного консенсуса и посвящена вопросам заместительной ферментной терапии.

To assess an experience of robot-assisted liver resection using CUSUM-test.The results of 46 robot-assisted liver resections were retrospectively analyzed by using of CUSUM-test.There were 3 periods in development of the technology. The 1В последнее десятилетие набирает популярность оценка кривых обучения при помощи метода статистического анализа CUSUM (cumulative sum). Цель исследования - оценить опыт освоения робот-ассистированных резекций печени при помощи метода CUSUM. Материал и методы. При помощи метода CUSUM проведен ретроспективный анализ результатов 46 робот-ассистированных резекций печени. Результаты. Выделены 3 периода в освоении технологии: 1-й - обучение операциям с низким индексом сложности (n=16), 2-й - расширение показаний к операциям с высоким уровнем сложности (n=18) и 3-й - стабилизация показателей (n=12). Изучена динамика индекса сложности резекций печени, объема интраоперационной кровопотери, длительности операции и частоты осложнений II-V класса по Clavien-Dindo. Согласно данным анализа, снижение показателей кровопотери и длительности резекции печени произошло после 5-й операции. Переход к сложным резекциям печени потребовал выполнения 16 операций. Стабилизация периоперационных параметров наступила после 34 резекций печени. Заключение. Технология CUSUM представляется эффективным методом оценки кривой обучения робот-ассистированным резекциям печени.

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.To analyze safety of advanced liver resections combined with great vessels repair for locally advanced large and multiple cholangiocellular carcinoma.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.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.Advanced liver resection followed by IVC and PV repair for locally advanced ICC may be safely performed and subsequently allows chemotherapeutic treatment.Внутрипеченочная холангиокарцинома (ВХК) ― одна из наиболее агрессивных опухолей, ассоциированных с плохим прогнозом. Основным методом лечения в резектабельных случаях остается радикальная хирургическая операция. Наиболее трудновыполнимой она становится при местно-распространенных формах поражения, особенно при вовлечении нижней полой вены (НПВ) и воротной вены (ВВ). Цель исследования ― проанализировать безопасность выполнения обширных резекций печени, комбинированных с резекцией и реконструкцией магистральных сосудов при местно-распространенных больших и множественных поражениях холангиоцеллюлярным раком внутрипеченочной локализации. Материал и методы. С января 2014 г. по апрель 2017 г. 80 пациентам с холангиокарциномой выполнены обширные резекции печени. Среди них ― 62 были радикально оперированы по поводу воротной холангиокарциномы и 18 с ВХК. Резекция и реконструкция сосудов потребовались 4 пациентам с ВХК: в 2 случаях ― протезирование НПВ (из них 1 пациенту ― в условиях обходного вено-венозного шунтирования), в 2 случаях ― краевая и циркулярная резекции бифуркации воротной вены. Результаты. Послеоперационные осложнения класса IIIа по классификации Clavien―Dindo развились во всех 4 случаях. Сосудистые осложнения отсутствовали. Продолжительность пребывания в стационаре колебалась от 14 до 35 дней. Летальных исходов не было. Годичная выживаемость составила 50%. 25% пациентов пережили двухлетний рубеж. Все пациенты получали адъювантную химиотерапию. Вывод. Обширные резекции печени, комбинированные с резекцией НПВ и ВВ при местно-распространенной ВХК, могут быть выполнены безопасно для пациентов и в последующем позволяют провести химиотерапевтическое лечение.

Background There is no comparative analysis of the learning curves for robot-assisted and laparoscopic liver resection. We aimed to compare learning curves in complex robotic and conventional laparoscopic liver resections with regards to estimation of the difficulty index score. Methods The results of 131 consecutive liver resections were analyzed retrospectively (40 robot-assisted and 91 laparoscopic). The learning curve evaluation was based on calculation of procedures number before significant change of the difficulty index for minimally invasive liver resection or the rate of posterosuperior segments resection. Groups of early and late experience were compared in every type of approach (robot-assisted and laparoscopic). Results Significant increase of difficulty index (from 5.0 [3.0–7.7] to 7.3 [4.3–10.2]) of robotic procedures required 16 procedures. It was necessary to perform 29 laparoscopic resections in order to significantly increase the rate of laparoscopic posterosuperior segments resection but without significant increase of difficulty index. The implementation of minimally invasive liver resection started with the robotic approach. Conclusion The learning curve for robot-assisted liver resections is shorter in comparison with laparoscopic resections. The inclusion of robot-assisted resections in a minimally invasive liver surgery program may be useful to rapidly increase the complexity of laparoscopic liver resections.

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.