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Polyakov AN, Patyutko YI, Kotelnikov AG, Frantsev DY, Korshak AV, Uzbekova AA, Egenov OA, Pokataev IA, Savchenko IV, Podluzhny DV. [Surgical treatment and prognostic factors in perihilar tumors]. Khirurgiia (Mosk) 2024:14-23. [PMID: 38344956 DOI: 10.17116/hirurgia202402114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
OBJECTIVE To study the results of surgical treatment in patients with perihilar tumors. MATERIAL AND METHODS We analyzed 98 patients with perihilar tumors who underwent surgery. RESULTS We prefer percutaneous transhepatic biliary drainage (n=58) for jaundice. Retrograde interventions were performed in 18 cases (20.5%), complications grade III-IV were more common (p=0.037) in the last group. Postoperative mortality was 12%. Complications developed in 81 patients (82.7%), grade ≥3 - in 39 (39.8%) cases. Portal vein resection (n=26) increased the incidence of complications grade ≥III (p=0.035) and portal vein thrombosis (p=0.0001). Chemotherapy after surgery was performed in 47 patients (48.0%), photodynamic therapy - in 7 (7.1%) patients. A 5-year overall survival was 28.1%, the median survival - 29 months. R2 resection and/or M1 stage (n=12) significantly worsened the prognosis and overall survival (16.5 vs. 31 months, p=0.0055). Lymph node (LN) lesion, microscopic status (R0 vs. R1) of resection margin, technique of decompression and isolated resection of extrahepatic bile ducts did not affect the prognosis, and we combined appropriate patients (n=72) for analysis. SI resection and excision of ≥6 lymph nodes were independent positive factors for disease-free survival (p=0.042 and p=0.007, respectively). Blood transfusion and high preoperative neutrophil-lymphocyte index (NLI ≥2.15) worsened overall (p=0.009 and p=0.002, respectively) and disease-free survival (p=0.002 and 0.007, respectively). The absence of adjuvant therapy worsened disease-free survival alone (p=0.024). CONCLUSION SI liver resection, adequate lymph node dissection and adjuvant therapy should be used for perihilar tumors. Isolated resection of extrahepatic bile ducts is permissible in some cases. Blood transfusion and NLI ≥2.15 are independent negative prognostic factors.
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Affiliation(s)
- A N Polyakov
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - Yu I Patyutko
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - A G Kotelnikov
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - D Yu Frantsev
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - A V Korshak
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - A A Uzbekova
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - O A Egenov
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - I A Pokataev
- Moscow City Clinical Oncology Hospital No.1, Moscow, Russia
| | - I V Savchenko
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - D V Podluzhny
- Blokhin National Medical Cancer Research Center, Moscow, Russia
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Polyakov AN, Mirzaev TS, Batalova MV, Moroz EA, Petrosyan AP. [Laparoscopic distal pancreatectomy for portal annular pancreas]. Khirurgiia (Mosk) 2023:108-113. [PMID: 37313708 DOI: 10.17116/hirurgia2023061108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Portal annular pancreas is a little-known anatomical variant of annular pancreas. In these patients, pancreatic parenchyma encircles the portal vein annularly. This anomaly is associated with high risk of postoperative pancreatic fistula in pancreatic surgery. Considering small incidence of anomaly and characteristics of surgery, we describe laparoscopic distal pancreatectomy with preservation of spleen and splenic vessels in a patient with solid pseudopapillary tumor combined with portal annular pancreas. A 33-year-old woman underwent laparoscopic surgery for cystic-solid pancreatic tumor. Spleen-sparing distal pancreatectomy was performed. Portal annular pancreas was visualized intraoperatively and confirmed retrospectively after analysis of MR data. Ventral and dorsal parts of portal annular pancreas were transected using stapler device. Pancreatic fistula developed in postoperative period. The patient was discharged after 6 days with a drainage tube. Surgeons need to be aware of portal annular pancreas. This anomaly increases the risk of postoperative fistula. Transection of ventral and dorsal parts of annular pancreas using stapler device is the most acceptable option to reduce the risk of postoperative fistula.
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Affiliation(s)
- A N Polyakov
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - T S Mirzaev
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - M V Batalova
- Buyanov Moscow City Clinical Hospital, Moscow, Russia
| | - E A Moroz
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - A P Petrosyan
- Blokhin National Medical Cancer Research Center, Moscow, Russia
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Polyakov AN, Patyutko YI, Kudashkin NE, Kantieva DM, Romanova KA, Nasonova EA, Korshak AV, Egenov OA, Podluzhnyi DV. [Irreversible electroporation in locally advanced pancreatic cancer]. Khirurgiia (Mosk) 2023:29-38. [PMID: 37916555 DOI: 10.17116/hirurgia202310129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
OBJECTIVE To determine the feasibility of irreversible electroporation (IRE) for locally advanced pancreatic adenocarcinoma. MATERIAL AND METHODS Twenty-three patients underwent IRE after chemotherapy for locally advanced pancreatic cancer between 2015 and 2022. IRE was performed during laparotomy as a rule (n=22). In one case, IRE was combined with palliative pancretoduodenectomy. Nineteen (86.3%) patients received adjuvant chemotherapy after the procedure. The follow-up examination included contrast-enhanced CT/MRI of the abdomen, chest X-ray or CT, analysis of CA 19-9 marker one month after surgery and then every three months. RESULTS Complications after IRE developed in 5 (21.7%) patients. Three patients (13.0%) had arrhythmia, two (8.7%) ones had pancreatic necrosis. A 90-day mortality after the procedure was 4.3% (n=1), the cause was pancreatic necrosis. According to intraoperative data and the first examination (CT/MRI), the entire tumor infiltrate was treated in 21 (91.3%) cases. Median follow-up was 19 months. Median period until local recurrence was 15 months. Isolated local recurrence was observed in 7 patients. Of these, 3 ones underwent radiotherapy, one patient underwent repeated IRE. Distant metastases were found in 11 patients; systemic therapy was restarted. Median time to progression was 7 months after IRE and 14 months after initiation of chemotherapy. The median overall survival was 16 months after electroporation and 25 months after chemotherapy. CONCLUSION Irreversible electroporation may be useful in carefully selected patients with unresectable locally advanced pancreatic adenocarcinoma after successful induction chemotherapy. This procedure provides local control, but the impact on long-term outcomes and feasibility of routine use should be analyzed in randomized trials.
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Affiliation(s)
- A N Polyakov
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - Yu I Patyutko
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - N E Kudashkin
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - D M Kantieva
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - K A Romanova
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - E A Nasonova
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - A V Korshak
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - O A Egenov
- Blokhin National Medical Cancer Research Center, Moscow, Russia
| | - D V Podluzhnyi
- Blokhin National Medical Cancer Research Center, Moscow, Russia
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Patyutko YI, Podluzhny DV, Polyakov AN, Nasonova EA, Kudashkin NE. [Resection of liver segments VII-VIII: is right hepatic vein reconstruction advisable?]. Khirurgiia (Mosk) 2021:29-33. [PMID: 33759465 DOI: 10.17116/hirurgia202104129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To improve the treatment outcomes in patients with primary and metastatic liver tumors localized in segments VII-VIII involving the right hepatic vein and its branches. MATERIAL AND METHODS There were 16 surgical interventions including resection of liver segment VII and/or VIII with resection of the right hepatic vein and its branches without reconstruction. All procedures were carried out at the Department of Liver and Pancreatic Tumors of the Blokhin National Medical Cancer Research Center for the period 2016-2020. The cause of surgery was colorectal cancer liver metastases in 8 patients, hepatocellular carcinoma in 2 cases, angiomyolipoma in 1 case and metastases of uterine cancer in 1 patient. Minor liver resection was additionally performed in 5 cases. RESULTS Median surgery time was 150 (80-220) min, intraoperative blood loss - 400 (100-2000) ml. Afferent blood flow was blocked in 4 patients for 14 (12-25) min. None patient had intraoperative signs of impaired venous outflow. Biliary fistula in postoperative period occurred in 1 patient. No complications were noted in other cases. Median postoperative hospital-stay was 13 (9-19) days. There were no specific complications in long-term postoperative period that could be associated with venous outflow blockade through the right hepatic vein. CONCLUSION Existing vessels and intrahepatic collaterals de novo can provide adequate venous outflow into the middle hepatic vein and short hepatic veins during resection of liver segments VII and/or VIII with resection of the right hepatic vein and its branches without reconstruction and the absence of inferior right hepatic vein.
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Affiliation(s)
- Yu I Patyutko
- Blokhin National Medical Research Center of Oncology, Moscow, Russia
| | - D V Podluzhny
- Blokhin National Medical Research Center of Oncology, Moscow, Russia
| | - A N Polyakov
- Blokhin National Medical Research Center of Oncology, Moscow, Russia
| | - E A Nasonova
- Blokhin National Medical Research Center of Oncology, Moscow, Russia.,Pirogov Russian National Research Medical University, Moscow, Russia
| | - N E Kudashkin
- Blokhin National Medical Research Center of Oncology, Moscow, Russia.,Pirogov Russian National Research Medical University, Moscow, Russia
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Patyutko YI, Kotelnikov AG, Kriger AG, Proskuryakov IS, Galkin GV, Polyakov AN, Fainstein IA. [Metastatic renal cell carcinoma to the pancreas: experience of surgical treatment]. Khirurgiia (Mosk) 2019:25-31. [PMID: 31532163 DOI: 10.17116/hirurgia201909125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To evaluate the outcomes in patients undergoing surgery for metastatic renal cell carcinoma (RCC) to the pancreas. MATERIAL AND METHODS A retrospective analysis included 54 patients with pancreatic metastases (PM) of RCC who underwent surgical treatment at the Blokhin National Cancer Medical Research Center and Vishnevsky National Medical Research Center of Surgery in 1995-2018. PM were synchronous in 6 (11%) patients and metachronous in 48 (89%) patients. Solitary metastases were identified in 35 (65%), single metastases - in 14 (26%), multiple metastases - in 5 (9%) patients. Thirty (56%) patients had isolated PM, 24 (44%) patients - PM associated with another metastatic site. The following surgical procedures were performed: distal pancreatectomy (n=30, 55%), pancreatoduodenectomy (n=12, 21%), total pancreatectomy (n=6, 12%), pancreatic head resection (n=3, 6%), middle-preserving pancreatectomy (n=1, 2%), middle pancreatectomy (n=1, 2%), cryosurgical destruction of tumor (n=1, 2%). RESULTS Median blood loss was 950 ml (interquartile range 400-1800 ml). Postoperative complications occurred in 52% patients. The 90-day mortality rate was 6%, overall 5-year survival 74±7%, median - 84 months. CONCLUSION Surgery is associated with an acceptable perioperative complications and long-term survival in patients with synchronous and metachronous, solitary and multiple PM of RCC, including cases of extrapancreatic disease. This approach may be considered as a management option in these patients.
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Affiliation(s)
- Yu I Patyutko
- Blokhin National Cancer Medical Research Center of the Ministry of Health of Russia, Moscow, Russia
| | - A G Kotelnikov
- Blokhin National Cancer Medical Research Center of the Ministry of Health of Russia, Moscow, Russia
| | - A G Kriger
- Vishnevsky National Medical Research Center of Surgery of the Ministry of Health of Russia, Moscow, Russia
| | - I S Proskuryakov
- Blokhin National Cancer Medical Research Center of the Ministry of Health of Russia, Moscow, Russia
| | - G V Galkin
- Vishnevsky National Medical Research Center of Surgery of the Ministry of Health of Russia, Moscow, Russia
| | - A N Polyakov
- Blokhin National Cancer Medical Research Center of the Ministry of Health of Russia, Moscow, Russia
| | - I A Fainstein
- Blokhin National Cancer Medical Research Center of the Ministry of Health of Russia, Moscow, Russia
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Shorikov MA, Sergeeva ON, Kashkadaeva AV, Averinova SG, Lapteva MG, Frantsev DY, Polyakov AN, Kudashkin NE, Alekhin AP, Moroz EA, Virshke ER, Dolgushin BI. Liver Functional Evaluation Using Gadoxetic Acid Versus the Gold Standard Hepatobiliary Scintigraphy in Patients with Bile Duct Diseases. ACTA ACUST UNITED AC 2019. [DOI: 10.20862/0042-4676-2019-100-4-200-208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Objective. To compare liver function assessments using Gd-EOB-DTPA-enhanced MRI and the gold standard hepatobiliary scintigraphy (HBS) in patients with bile duct diseases.Material and methods. The investigation enrolled 18 patients (male/female = 11/7; age, 29–70 years, Klatskin tumor (n=16), bile duct epithelial dysplasia (n=1), intrahepatic cholangiolithiasis (n=1)) after biliary decompression, who underwent 21 paired MRIs and 99mTc-mebrofenin HBS at a study interval of no more than 3 days. In the same regions of interest with a size of 30–50 pixels located in liver segments II–III, IV, V–VIII, and VI–VII, a MRI signal was measured before MR contrast agent (MRCA) injection into the standard vascular phases and at 10, 20, 30 and 40 minutes, then the signal was expressed as a percentage of intensity compared to the precontrast series. After MR volumetry, the functional volumes of the left and right liver lobes were also defined as the area under the MRCA accumulation curve, which was multiplied by the lobe volume and expressed as a percentage of the similarly calculated function of the entire liver. Similar intensity parameters and functional volumes were estimated for a HBS study.Results. The lobe functional volumes measured by the two methods were highly correlated (R=0.8; p<0.001) and did not show a significant difference at all when comparing with the Mann–Whitney test (p>0.3). The excretion rate of 99mTc-mebrofenin was also highly correlated with MRI findings (R=0.5–0.9; p<0.05). Conclusion. Gd-EOB-DTPA-enhanced MRI revealed a high correlation with the gold standard; however, additional studies are needed to clarify the possibilities and limitations of replacing one method with another one.><0.05).Conclusion. Gd-EOB-DTPA-enhanced MRI revealed a high correlation with the gold standard; however, additional studies are needed to clarify the possibilities and limitations of replacing one method with another one.
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Affiliation(s)
- M. A. Shorikov
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - O. N. Sergeeva
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - A. V. Kashkadaeva
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - S. G. Averinova
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - M. G. Lapteva
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - D. Yu. Frantsev
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - A. N. Polyakov
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - N. E. Kudashkin
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - A. P. Alekhin
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - E. A. Moroz
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - E. R. Virshke
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
| | - B. I. Dolgushin
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation
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Affiliation(s)
- A. Yu. Syskova
- Pirogov Russian National Research Medical University (RNRMU) of the Health Ministry of Russia; N.N.BLokhin National Medical Research Centre of Oncology of the Health Ministry of Russia
| | - I. S. Stilidi
- Pirogov Russian National Research Medical University (RNRMU) of the Health Ministry of Russia; N.N.BLokhin National Medical Research Centre of Oncology of the Health Ministry of Russia
| | - A. N. Polyakov
- N.N.BLokhin National Medical Research Centre of Oncology of the Health Ministry of Russia
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Zhang ZY, Gan ZG, Yang HB, Ma L, Huang MH, Yang CL, Zhang MM, Tian YL, Wang YS, Sun MD, Lu HY, Zhang WQ, Zhou HB, Wang X, Wu CG, Duan LM, Huang WX, Liu Z, Ren ZZ, Zhou SG, Zhou XH, Xu HS, Tsyganov YS, Voinov AA, Polyakov AN. New Isotope ^{220}Np: Probing the Robustness of the N=126 Shell Closure in Neptunium. Phys Rev Lett 2019; 122:192503. [PMID: 31144958 DOI: 10.1103/physrevlett.122.192503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/10/2019] [Indexed: 06/09/2023]
Abstract
A new short-lived neutron-deficient isotope ^{220}Np was synthesized in the fusion-evaporation reaction ^{185}Re(^{40}Ar,5n)^{220}Np at the gas-filled recoil separator SHANS. Based on the measurement of the correlated α-decay chains, the decay properties of ^{220}Np with E_{α}=10040(18) keV and T_{1/2}=25_{-7}^{+14} μs were determined, which are in good agreement with theoretical predictions. From the new experimental results coupled with the recently reported α-decay data of ^{219,223}Np, the α-decay systematics for Np isotopes around N=126 was established, which allows us for the first time to test the robustness of the N=126 shell closure in Z=93 Np isotopes. The results also indicate that, in the region of nuclei with Z≥83, the proton drip line has been reached for all odd-Z isotopes up to Np.
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Affiliation(s)
- Z Y Zhang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z G Gan
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - H B Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - M H Huang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - C L Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - M M Zhang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Y L Tian
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Y S Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - M D Sun
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - H Y Lu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - W Q Zhang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - H B Zhou
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - X Wang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - C G Wu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - L M Duan
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - W X Huang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z Liu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z Z Ren
- School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - S G Zhou
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
- Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China
| | - X H Zhou
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - H S Xu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu S Tsyganov
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation
| | - A A Voinov
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation
| | - A N Polyakov
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation
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Patyutko YI, Polyakov AN, Podluzhnyi DV, Syskova AY, Sagaidak IV, Kotel'nikov AG, Sergeeva ON, Pokataev IA. [Cholangiocellular cancer: the state of the problem and ways to improve the results of surgical treatment]. Khirurgiia (Mosk) 2018:30-37. [PMID: 30560842 DOI: 10.17116/hirurgia201812130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
AIM To improve the outcomes in patients with resectable biliary cancer. MATERIAL AND METHODS There were 263 procedures for cholangiocellular carcinoma (CCC) for the period 1998—2017. Adjuvant chemotherapy was performed in 102 (38.8%) patients. Extensiveliver resections (78.9%) prevailed for intrahepatic cholangiocellular carcinoma (n=128), 6 (4.7%) patients required vascular resection. Seventy-seven pancreatoduodenectomies were performed for common bile duct cancer, portal vein resection was done in 8 (10.4%) patients. In case of Klatskin tumor (n=58) liver resection combined with bile duct resection (n=52) prevailed. Portal vein resection was done in 16 (27.6%) patients. RESULTS Postoperative morbidity in patients with intrahepatic CCC was revealed in 68 (53.1%) cases, mortality — in 5 (3.9%) cases. Among patients with Klatskin tumor morbidity was revealed in 51 (87.9%) cases, mortality — in 6 (10.3%) cases. In patients with common bile duct cancer morbidity was revealed in 53 (68.8%) cases, mortality — in 4 (5.2%) cases. In whole cohort median overall survival was 30 months. R0-resection was associated with better long-term results (median 37 months) compared with R1—R2 resection (20 months; p=0.01). Lymph node involvement is associated with significantly worse prognosis (p=0.016), however 5-year survival is observed (25.6%). Adjuvant chemotherapy in R0-resection significantly improved long-term results: median was 46 months (vs. 30 in group without chemotherapy; p=0.02). In intrahepatic CCC patients multiple lesions or mechanical jaundice did not aggravate long-term results. CONCLUSION R0-resection including lymphadenectomy, resection of adjacent organs and vessels is advisable for CCC. Isolated bile duct resection should be used as an exception. Adjuvant therapy improved long-term results. Multiple lymph node lesion or bile duct infiltration are not contraindications to surgery in intrahepatic CCC patients.
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Affiliation(s)
- Yu I Patyutko
- N.N. Blokhin National Medical Cancer Research Center of Healthcare Ministry of the Russia, Moscow, Russia
| | - A N Polyakov
- N.N. Blokhin National Medical Cancer Research Center of Healthcare Ministry of the Russia, Moscow, Russia
| | - D V Podluzhnyi
- N.N. Blokhin National Medical Cancer Research Center of Healthcare Ministry of the Russia, Moscow, Russia
| | - A Yu Syskova
- N.N. Blokhin National Medical Cancer Research Center of Healthcare Ministry of the Russia, Moscow, Russia
| | - I V Sagaidak
- N.N. Blokhin National Medical Cancer Research Center of Healthcare Ministry of the Russia, Moscow, Russia
| | - A G Kotel'nikov
- N.N. Blokhin National Medical Cancer Research Center of Healthcare Ministry of the Russia, Moscow, Russia
| | - O N Sergeeva
- N.N. Blokhin National Medical Cancer Research Center of Healthcare Ministry of the Russia, Moscow, Russia
| | - I A Pokataev
- N.N. Blokhin National Medical Cancer Research Center of Healthcare Ministry of the Russia, Moscow, Russia
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Patyutko YI, Polyakov AN, Kotel'nikov AG, Sagaydak IV, Gahramanov AD, Chistyakova OV, Moroz EA. Surgical and combined treatment of patients with cholangiocellular carcinoma. Khirurgiia (Mosk) 2015:11-24. [PMID: 26978619 DOI: 10.17116/hirurgia20151111-24] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Liver resection is the essential method of cholangiocellular carcinoma treatment. However due to low resectability and high incidence of recurrences search for additional curative methods is necessary. AIM To improve the results of surgical treatment of patients with cholangiocellular carcinoma especially with complications and poor prognosis. MATERIAL AND METHODS A total of 95 surgical procedures for intrahepatic cholangiocarcinoma have been performed in the department of liver andpancreatic tumors at N.N. Blokhin Russian Cancer Research Center since 1998 to 2014. 11 patients had obstructive jaundice as the first symptom of the disease. Extended liver resections were done in most cases (84.2%). Preoperative treatment was performed in 3 patients. Adjuvant chemotherapy after R0-resection was applied in 15 patients. RESULTS The postoperative mortality rate was 4.2%. Postoperative complications were observed in 51 (53.7%) patients. Complication grade III after adjuvant chemotherapy was observed in one (6.7%) patient. Median survival after liver resection was 25 months, 5-year survival rate - 25.3%. In stage I-II five-year survival reached 66.7%. In patients with obstructive jaundice 5-year survival rate was 26.7%, median survival - 37 months. There was no improvement of survival in case of adjuvant therapy. CONCLUSION Liver resection remains essential treatment of cholangiocellular carcinoma including patients with obstructive jaundice. Additional curative methods are necessary to increase resectability and decrease the risk of recurrence.
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Affiliation(s)
| | - A N Polyakov
- Department of liver and pancreatic tumors, Moscow
| | | | - I V Sagaydak
- Department of liver and pancreatic tumors, Moscow
| | | | | | - E A Moroz
- Department of liver and pancreatic tumors, Moscow
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Oganessian YT, Abdullin FS, Alexander C, Binder J, Boll RA, Dmitriev SN, Ezold J, Felker K, Gostic JM, Grzywacz RK, Hamilton JH, Henderson RA, Itkis MG, Miernik K, Miller D, Moody KJ, Polyakov AN, Ramayya AV, Roberto JB, Ryabinin MA, Rykaczewski KP, Sagaidak RN, Shaughnessy DA, Shirokovsky IV, Shumeiko MV, Stoyer MA, Stoyer NJ, Subbotin VG, Sukhov AM, Tsyganov YS, Utyonkov VK, Voinov AA, Vostokin GK. Study of the properties of the superheavy nuclei Z = 117 produced in the 249Bk + 48Ca reaction. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146602073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Oganessian YT, Abdullin FS, Alexander C, Binder J, Boll RA, Dmitriev SN, Ezold J, Felker K, Gostic JM, Grzywacz RK, Hamilton JH, Henderson RA, Itkis MG, Miernik K, Miller D, Moody KJ, Polyakov AN, Ramayya AV, Roberto JB, Ryabinin MA, Rykaczewski KP, Sagaidak RN, Shaughnessy DA, Shirokovsky IV, Shumeiko MV, Stoyer MA, Stoyer NJ, Subbotin VG, Sukhov AM, Tsyganov YS, Utyonkov VK, Voinov AA, Vostokin GK. Production and decay of the heaviest nuclei (293,294)117 and (294)118. Phys Rev Lett 2012; 109:162501. [PMID: 23215070 DOI: 10.1103/physrevlett.109.162501] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Indexed: 06/01/2023]
Abstract
Two years after the discovery of element 117, we undertook a second campaign using the (249)Bk+(48)Ca reaction for further investigations of the production and decay properties of the isotopes of element 117 on a larger number of events. The experiments were started in the end of April 2012 and are still under way. This Letter presents the results obtained in 1200 hours of an experimental run with the beam dose of (48)Ca of about 1.5×10(19) particles. The (249)Bk target was irradiated at two energies of (48)Ca that correspond to the maximum probability of the reaction channels with evaporation of three and four neutrons from the excited (297)117. In this experiment, two decay chains of (294)117 (3n) and five decay chains of (293)117 (4n) were detected. In the course of the long-term work, (249)Cf-the product of decay of (249)Bk (330 d)-is being accumulated in the target. Consequently, in the present experiment, we also detected a single decay of the known isotope (294)118 that was produced during 2002-2005 in the reaction (249)Cf((48)Ca,3n)(294)118. The obtained results are compared with the data from previous experiments. The experiments are carried out in the Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, using the heavy-ion cyclotron U400.
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Affiliation(s)
- Yu Ts Oganessian
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation.
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Oganessian YT, Abdullin FS, Dmitriev SN, Gostic JM, Hamilton JH, Henderson RA, Itkis MG, Moody KJ, Polyakov AN, Ramayya AV, Roberto JB, Rykaczewski KP, Sagaidak RN, Shaughnessy DA, Shirokovsky IV, Stoyer MA, Subbotin VG, Sukhov AM, Tsyganov YS, Utyonkov VK, Voinov AA, Vostokin GK. New insights into the 243Am + 48Ca reaction products previously observed in the experiments on elements 113, 115, and 117. Phys Rev Lett 2012; 108:022502. [PMID: 22324675 DOI: 10.1103/physrevlett.108.022502] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Indexed: 05/31/2023]
Abstract
Results of a new series of experiments on the study of production cross sections and decay properties of the isotopes of element 115 in the reaction (243)Am+(48)Ca are presented. Twenty-one new decay chains originating from (288)115 were established as the product of the 3n-evaporation channel by measuring the excitation function at three excitation energies of the compound nucleus (291)115. The decay properties of all newly observed nuclei are in full agreement with those we measured in 2003. At the lowest excitation energy E*=33 MeV, for the first time we registered the product of the 2n-evaporation channel, (289)115, which was also observed previously in the reaction (249)Bk+(48)Ca as the daughter nucleus of the decay of (293)117. The maximum cross section for the production of (288)115 is found to be 8.5 pb at E*≈36 MeV.
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Affiliation(s)
- Yu Ts Oganessian
- Joint Institute for Nuclear Research, Dubna, Russian Federation.
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Oganessian YT, Abdullin FS, Bailey PD, Benker DE, Bennett ME, Dmitriev SN, Ezold JG, Hamilton JH, Henderson RA, Itkis MG, Lobanov YV, Mezentsev AN, Moody KJ, Nelson SL, Polyakov AN, Porter CE, Ramayya AV, Riley FD, Roberto JB, Ryabinin MA, Rykaczewski KP, Sagaidak RN, Shaughnessy DA, Shirokovsky IV, Stoyer MA, Subbotin VG, Sudowe R, Sukhov AM, Tsyganov YS, Utyonkov VK, Voinov AA, Vostokin GK, Wilk PA. Synthesis of a new element with atomic number Z = 117. Phys Rev Lett 2010; 104:142502. [PMID: 20481935 DOI: 10.1103/physrevlett.104.142502] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2010] [Indexed: 05/29/2023]
Abstract
The discovery of a new chemical element with atomic number Z=117 is reported. The isotopes (293)117 and (294)117 were produced in fusion reactions between (48)Ca and (249)Bk. Decay chains involving 11 new nuclei were identified by means of the Dubna gas-filled recoil separator. The measured decay properties show a strong rise of stability for heavier isotopes with Z > or = 111, validating the concept of the long sought island of enhanced stability for superheavy nuclei.
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Affiliation(s)
- Yu Ts Oganessian
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation.
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Oganessian YT, Utyonkov VK, Lobanov YV, Abdullin FS, Polyakov AN, Shirokovsky IV, Tsyganov YS, Gulbekian GG, Bogomolov SL, Gikal BN, Mezentsev AN, Iliev S, Subbotin VG, Sukhov AM, Voinov AA, Buklanov GV, Subotic K, Zagrebaev VI, Itkis MG, Moody KJ, Wild JF, Stoyer MA, Stoyer NJ, Shaughnessy DA, Kenneally JM, Patin JB, Lougheed RW. Synthesis of Superheavy Nuclei in48Ca-Induced Reactions. ACTA ACUST UNITED AC 2004. [DOI: 10.1143/ptps.154.406] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Ivanov YM, Kanevsky VM, Dvoryankin VF, Artemov VV, Polyakov AN, Kudryashov AA, Pashaev EM, Horvath ZJ. The possibilities of using semi-insulating CdTe crystals as detecting material for X-ray imaging radiography. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/pssc.200306258] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lazarev YA, Lobanov YV, Oganessian YT, Utyonkov VK, Abdullin FS, Polyakov AN, Rigol J, Shirokovsky IV, Tsyganov YS, Iliev S, Subbotin VG, Sukhov AM, Buklanov GV, Gikal BN, Kutner VB, Mezentsev AN, Subotic K, Wild JF, Lougheed RW, Moody KJ. alpha decay of 273110: Shell closure at N=162. Phys Rev C Nucl Phys 1996; 54:620-625. [PMID: 9971385 DOI: 10.1103/physrevc.54.620] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lazarev YA, Lobanov YV, Oganessian YT, Tsyganov YS, Utyonkov VK, Abdullin FS, Iliev S, Polyakov AN, Rigol J, Shirokovsky IV, Subbotin VG, Sukhov AM, Buklanov GV, Gikal BN, Kutner VB, Mezentsev AN, Sedykh IM, Vakatov DV, Lougheed RW, Wild JF, Moody KJ, Hulet EK. New Nuclide 267108 Produced by the 238U+34S Reaction. Phys Rev Lett 1995; 75:1903-1906. [PMID: 10059158 DOI: 10.1103/physrevlett.75.1903] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Neverov NI, Ivanov AA, Tareyeva IE, Golov KG, Polyakov AN. Effects of dietary lipids and lovastatin during the course of nephropathies. Nephron Clin Pract 1995; 69:198. [PMID: 7723919 DOI: 10.1159/000188455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Lazarev YA, Lobanov YV, Oganessian YT, Utyonkov VK, Abdullin FS, Buklanov GV, Gikal BN, Iliev S, Mezentsev AN, Polyakov AN, Sedykh IM, Shirokovsky IV, Subbotin VG, Sukhov AM, Tsyganov YS, Zhuchko VE, Lougheed RW, Moody KJ, Wild JF, Hulet EK, McQuaid JH. Discovery of enhanced nuclear stability near the deformed shells N=162 and Z=108. Phys Rev Lett 1994; 73:624-627. [PMID: 10057496 DOI: 10.1103/physrevlett.73.624] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Chudnovskii SI, Moroz BS, Polyakov AN. Evaluation of binaural interaction according to the characteristics of short latency acoustic evoked potentials in guinea pigs. NEUROPHYSIOLOGY+ 1988. [DOI: 10.1007/bf01058038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Landa VA, Polyakov AN, Baranov VK. Effect of a pulsed electric current on the course of reparative osteogenesis. Bull Exp Biol Med 1977. [DOI: 10.1007/bf00800755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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