Siberian journal of oncology最新文献

{"title":"The use of a thoracodorsal flap in the surgical treatment of squamous cell skin cancer (case report)","authors":"Т. V. Zakharkina, E. P. Kulikov, A. I. Nurieva, M. B. Zaitsev, T. C. Allakhyarov, A. V. Grigoriev","doi":"10.21294/1814-4861-2024-23-2-147-152","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-2-147-152","url":null,"abstract":"We report a case of successful surgical treatment of a patient with locally advanced cutaneous squamous cell cancer (cSCC) originating from a burn scar. The burn scar cSCC tends to be more aggressive in nature than conventional skin SCC. treatment of patients with cSCC arising from a burn scar is complicated by the fact that the extensive defects formed after tumor removal are almost impossible to close with local tissues. Purpose: to demonstrate the feasibility of performing surgery for locally advanced cSCC using a thoracodorsal flap. Clinical case description. A 70-year old man presented with cSCC of the right shoulder. The patient had experienced a severe burn covering 70 % of his body surface area at a young age. To repair a large skin defect after tumor resection in the right shoulder, a thoracodorsal artery perforator flap was used. there were no complications in the postoperative period. At a follow-up of 7 months, no evidence of tumor recurrence was observed. Conclusion. The thoracodorsal artery perforator flap has contributed to the efficient reconstruction of extensive soft tissue defects in patients with locally advanced cSCC originating from a burn scar.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":"104 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140987616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A rare clinical case of malignant ectopic retrosternal goiter of a large size in a patient with aberrant right subclavian artery","authors":"O. V. Pikin, O. Alexandrov, V. Glushko, A. Levshakova","doi":"10.21294/1814-4861-2024-23-2-119-125","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-2-119-125","url":null,"abstract":"Background. Ectopic goiter accounts for only 0.2 % to 1 % of all mediastinal goiters. The aberrant right subclavian artery (arteria lusoria) is an extremely rare anomaly of the major vessel, with a prevalence not exceeding 0.3 % in the general population. This paper presents the first case of malignant ectopic retrosternal goiter of a large size in combination with the aberrant right subclavian artery. Clinical case description. A 61-year-old male presented to the thoracic surgery department of P. Herzen Moscow oncology Research institute with a large posterior mediastinal mass measuring 108×106×79 mm and adjacent to the right lobe of the thyroid gland. The tumor displaced the trachea and esophagus. Open biopsy through a thoracotomy incision revealed thyroid gland cells without signs of atypia. A detailed examination revealed mediastinal vascular anomaly – retrotracheal position of the right subclavian artery. a complete longitudinal sternotomy, complemented by a right-sided thoracotomy at the 3rd intercostal space, served as the surgical approach. The operation lasted 320 minutes, with a blood loss of 3500 ml. The postoperative period was uneventful. The morphological examination of the surgical specimen revealed nodular hyperplasia of the ectopic thyroid tissue with the growth of well-differentiated follicular carcinoma without metastatic involvement of removed lymph nodes. Considering the identified follicular carcinoma, total thyroidectomy was performed. Conclusion. In surgical planning, it is crucial to assess the location of major mediastinal vessels and their relationship with the goiter. Therefore, all patients with mediastinal lesions should undergo preoperative contrast-enhanced ct. Retrosternal goiter predisposes to a higher rate of malignancy compared to cervical goiter. If the lower edge of the goiter is at the level of or below the aortic arch, cervical access should be supplemented with sternotomy. In cases of a massive thoracic component, additional thoracotomy is justified.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 567","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140989208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neoadjuvant chemoradiotherapy for thoracic esophageal squamous cell carcinoma: does everyone need it?","authors":"D. A. Chichevatov, E. Sinev, A. Glukhov, O. M. Seliverstova","doi":"10.21294/1814-4861-2024-23-2-15-25","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-2-15-25","url":null,"abstract":"Objective. In accordance with clinical guidelines, neoadjuvant chemoradiotherapy (nCRT) is recommended as a beneficial option for treatment of thoracic esophageal squamous cell carcinoma (TESCC). However, some studies did not demonstrate potential benefits of nCRT. In this paper we compared treatment outcomes of surgery alone with preoperative CRT followed by surgery. Material and methods. Group 1 (n=147) consisted of patients who underwent surgery alone. Group 2 (n=3,337) was formed in the framework of the present systematic review and meta-analysis (15 publications captured 20 separate subgroups for analysis). Patients of group 2 received nCRT followed by esophagectomy. Overall survival (OS) and median OS were estimated. Results. The median OS was reached in group 1 and in 12 separate subgroups of group 2 (2310 of 3337 patients). In groups 1 and 2 the OS median estimates were 31.0 and 28.1, respectively (p=0.873). Respective 3-year and 5-year OS were 0.49 vs 0.48 (p=0.425) and 0.37 vs 0.41 (p=0.228). The median OS was not reached in 8 separate subgroups of group 2 (1027 of 3337 patients). In this case, group 2 patients had significantly higher 3- and 5-year OS compared to group 1 patients: 0.69 vs 0.49 (p=0.000) and 0.60 vs 0.37 (p=0.000), respectively. Pathological complete response to nCRT was associated with better survival. conclusion. nCRT is not appropriate for all patients with TESCC. Improved overall survival may be achieved in patients with a high grade of pathological tumor response to neoadjuvant treatment. Selective administration of nCRT based on highly probable prediction of complete tumor response seems promising. This concept needs further research.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140994020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multimodal therapy for metastatic colorectal cancer: a case of complete clinical and radiological response of liver metastases","authors":"A. Dobrodeev, D. Kostromitsky, A. Tarasova, S. Afanasyev, N. Babyshkina, A. A. Ponomaryeva, I. Larionova, T. Dronova, D. I. Azovsky","doi":"10.21294/1814-4861-2024-23-1-162-169","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-1-162-169","url":null,"abstract":"Background. Colorectal cancer is one of the most common cancers and the second leading cause of cancer-related deaths worldwide. Population-based studies have shown that 25–30 % of patients with colorectal cancer have synchronous liver metastases at the time of diagnosis. despite modern advances in oncology and surgery, only 25 % of patients with metastatic colorectal cancer (mCRC) are suitable for liver resection, which is the only curative treatment option for these patients. In recent years, the indications for curative treatment of mCRC have expanded. due to the introduction of new targeted drugs into clinical practice, the tumor response rate to preoperative therapy has increased, thus increasing surgical resection rate. Some patients experience a complete clinical response, which is defined as the complete disappearance of liver metastases. However, 30–70 % of patients develop recurrent metastases in the liver within the first year of follow-up, and currently, even in the presence of complete regression of metastases, it is recommended to perform resection of the initially affected hepatic segments. Case presentation. We describe a case of complete clinical and radiological response of liver metastases after chemotherapy in a patient with sigmoid colon cancer. Molecular genetic analysis revealed the wild type of the Kras, Nras and Braf genes. The patient received 3 courses of preoperative chemotherapy according to the FOLFOxIRI + Cetuximab regimen. Laparoscopic sigmoid colon resection with d3 lymph node dissection was followed by adjuvant chemotherapy with oxaliplatin and 5-fluorouracil (12 cycles). After 16 months of follow-up, no evidence of colon cancer recurrence and liver metastasis was found. Conclusion. Current targeted therapy has demonstrated efficacy in treating mCRC with synchronous liver metastases and makes it possible, in selected cases, to avoid the liver resection provided that a complete clinical and radiological response of the metastases is achieved.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 98","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140210607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fast neutron therapy in Tomsk: 40-year experience in cancer treatmnet","authors":"Z. Startseva, O. Gribova, V. Velikaya, E. S. Sukhikh, V. Lisin, V. Novikov","doi":"10.21294/1814-4861-2024-23-1-98-108","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-1-98-108","url":null,"abstract":"The purpose of the study was to evaluate the efficacy of neutron therapy (NT) for salivary gland cancer and recurrent breast cancer. Material and Methods. The study included 130 patients with salivary gland cancer and 125 patients with recurrent breast cancer. Fast neutron therapy using U-120 cyclotron was given to the patients of the study group. Patients of the control group received standard radiotherapy (external beam radiotherapy). Results. Among patients with salivary gland cancer, a recurrence rate was significantly lower in patients who received a postoperative course of NT compared to patients of the control group (21.1 vs 45 %, p<0.05). The five-year overall survival rates were 73.8 ± 9.5 % and 43.2 ± 9.4 % in the study group and the control group, respectively (p<0.05). The five-year disease-free survival rates were 65.6 ± 7.5 % and 34.8 ± 9.1 % in the study and control groups, respectively (p<0.05). In patients with recurrent breast cancer, a significant increase in the frequency of complete regression in the study group compared to the control group was observed (91.8 vs 51.3 %, p<0.05). Ten-year survival rates in patients with no evidence of re-recurrence were 77.4 ± 8.7 % and 44.7 ± 8.8 % in the study group and the control group, respectively (p<0.05). Conclusion. The study demonstrated efficacy of fast neutron therapy in patients with salivary gland cancer and recurrent breast cancer. Neutron therapy did not result in serious complications, improved survival of the patients and decreased the recurrence rate compared with standard radiotherapy.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 78","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140210867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The initial experience of robot-assisted nephron-sparing surgery in patients with renal cell cancer","authors":"M. Komarov, N. K. Zhumabaev, A. Klimov, G. A. Arakelyan, A. V. Matveev, A. V. Khachaturyan, V. Y. Zemskova, V. Matveev","doi":"10.21294/1814-4861-2024-23-1-109-119","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-1-109-119","url":null,"abstract":"Purpose of the study: analysis of our experience in performing robotic-assisted nephron-sparing surgeries using the da robotic system. Material and Methods. The retrospective study included the first 37 consecutive patients who underwent robot-assisted partial nephrectomy from May 2020 to december 2022. Results. To assess the surgical outcomes in patients undergoing partial nephrectomy, three parameters associated with trifecta achievement were analyzed. The trifecta was assessed according to the standard criteria, whereas the quadfecta, which in addition to the trifecta included preservation of >90 % of the glomerular filtration rate (calculated according to Cockroft–Gault) in the postoperative period (3–7 days), did not assess the stage of chronic renal failure one year after surgery, thus probably demonstrating the high percentage of its achievement (54.1 %). A positive surgical margin was observed in 1 (2.7 %) patients. Warm ischemia time of more than 25 minutes was used in 8 patients (21.6 %). Complications in the postoperative period (Clavien–dindo II and higher) were observed in 1 (2.7 %) patient. Trifecta and quadfecta rates were 78.4 % and 54.1 %, respectively. To analyze the surgeons’ experience, 37 renal cell cancer patients were divided into two subgroups with first 20 and subsequent robotic partial nephrectomies. There were no differences in gender, age and calculated RENAL value between 2 subgroups. depending on the surgeons’ experience, statistically significant differences in the duration of surgery (p=0.035) and blood loss during surgery (p=0.007) were found. Conclusion. Considering the extensive experience of surgeons in the field of laparoscopic surgery for tumors of the renal parenchyma, the outcomes of robotic partial nephrectomies performed in 37 patients seem to be satisfactory and successful. The accumulated experience of surgeons after 20 robotic-assisted nephron-sparing surgeries makes it possible to significantly reduce surgery time and blood loss. The technique of robotic-assisted partial nephrectomy requires further improvements.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 50","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140211303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preoperative level of sex hormones as a predictor (prognostic factor) of the morphological characteristics of testicular malignancies","authors":"R. F. Kholbobozoda, A. Kostin, N. Vorobyev, A. Tolkachev, A. A. Krasheninnikov, I. A. Taraki, A. Kaprin","doi":"10.21294/1814-4861-2024-23-1-63-74","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-1-63-74","url":null,"abstract":"Introduction. Testicular cancer (TC) mostly affect young men of reproductive age. Several studies have shown correlation between the level of sex hormones in testicular cancer and serum tumor markers. However, currently, the relationship between hormone levels before orchidectomy and the clinical and pathomorphological characteristics of the tumor has not been sufficiently studied. Aim of the study: to analyze the relationship between hormone levels and the clinical stage and histological characteristics of the tumor in patients with testicular cancer and to develop prognostic models. Material and Methods. This prospective single-center study included 66 patients with testicular cancer. Localized, locally advanced and metastatic testicular cancer was diagnosed in 55 (83.3 %), 9 (13.6 %) and 2 (3.0 %) patients, respectively. A preoperative assessment of hormones such as total and free testosterone (T), estradiol (E2)), gonadotropic hormones (LH, FLH, Prolactin) and b-HCG was carried out. Patients were divided into 2 groups depending on the histological structure of the tumor: seminoma (n=31) and non-seminoma (n=35). The following parameters were assessed: tumor size, lymphovascular invasion and rete testis invasion. Results. In non-seminoma tumors, the values of sex hormones and beta-hCG were higher, but the values of gonadotropic hormones were lower compared with typical seminomas (p<0.05). High concentrations of b-HCG were observed predominantly in pT3 compared to pT1 stages (p=0.018). Correlation analysis revealed a connection between total (ρ=0.351; p=0.004) and free T (ρ=0.342; p=0.008), E2 (ρ=0.292; p=0.022), b-HCG (ρ=0.244; p= 0.048), LH (ρ=-0.287; p=0.039), FSH (ρ=-0.264; p=0.04) and the size of the primary tumor. The presence of rete testis invasion was accompanied by a low LH value and a high b-HCG value compared to patients without this prognostic parameter (p=0.015, p<0.001, respectively). Prognostic models were developed to determine the probability of histological structure and the presence of rete testis invasion (p<0.001) with high sensitivity (82.1 % and 76.5 %) and specificity (76.9 % and 100 %). Conclusion. The findings suggest that non-seminoma tumors are associated with changes in the pituitary-gonadal (HPG) axis. The high values of sex hormones and low values of gonadotropic hormones before orchidectomy are associated with a large size of the primary tumor. Additionally, a low LH value and a high b-HCG value are predictors of rete testis invasion. High b-HCG levels are associated with more aggressive tumor biology and poor prognosis.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 57","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140210993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Repeated use of hybrid isolated chemoperfusion with melphalan in non-resectable liver malignancy","authors":"A. I. Babich, M. A. Privalov, A. Demko, V. Reva, V. A. Manukovskiy, V. Cheremisov, I. V. Reshetov","doi":"10.21294/1814-4861-2024-23-1-155-161","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-1-155-161","url":null,"abstract":"Background. The incidence of liver malignancies is increasing, radical surgery can be performed in a small number of patients, most of them receive drug treatment. Isolated liver chemoperfusion (ILP) is a method of regional chemotherapy that is effective for some metastases but has a high complexity and frequency of complications. An improved method of hybrid ILP may offer new opportunities for patients with unresectable liver tumors. Case report. A 64-year-old patient diagnosed with stage IV sigmoid colon cancer underwent hybrid ILP. The patient was discharged after 6 days in a satisfactory condition without complications. Systemic chemotherapy was performed 21 days after the first hybrid chemoperfusion. The second hybrid chemoperfusion procedure was performed without the laparotomy stage, mobilizing the right common femoral vein and artery. As a result of the chemotherapy, the patients received a positive result on the mRECIST scale – a complete tumor response. Conclusion. The developed method of hybrid ILP has several advantages over traditional ILP and chemosaturation with infusion into the hepatic artery. This method can also be performed repeatedly, which is not possible with traditional ILP.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 86","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140211035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A case of pathological complete regression in combined modality treatment of resectable her2/ neu-positive gastric cancer","authors":"A. Avgustinovich, S. Afanasyev, L. V. Spirina, E. V. Kaygorodova, R. V. Ermolenko, E. N. Samtsov, I. Frolova, O. Cheremisina","doi":"10.21294/1814-4861-2024-23-1-170-177","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-1-170-177","url":null,"abstract":"Background. Overexpression of Her2neu occurs in 15–20% of patients with gastric cancer and correlates with an unfavorable prognosis. Case report. We report a case of pathological complete regression of resectable gastric cancer with Her2/neu overexpression. The patient received combined modality treatment including 8 cycles of neoadjuvant chemotherapy with mFLOT + trastuzumab followed by R0 resection. The addition of targeted therapy did not have a negative impact on the perioperative period. Histolohical examination of the surgical specimen revealed pathological complete response (Mandart TGR1). Currently, the patient has been followed-up for 27 months without signs of disease relapse. Conclusion. Total neoadjuvant chemotherapy with mFLОТ+ trastuzumab for operable gastric cancer with Her2/neu overexpression allows us to hope for improved long-term treatment outcomes.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 37","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140210921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the safety and feasibility of neoadjuvant chemotherapy (2 cycles of FLOT chemotherapy + chemoradiotherapy) followed by surgery in the treatment of locally advanced gastric cancer","authors":"D. Mironova, V. Skoropad, I. Kolobaev, S. A. Ivanov, A. Kaprin","doi":"10.21294/1814-4861-2024-23-1-45-52","DOIUrl":"https://doi.org/10.21294/1814-4861-2024-23-1-45-52","url":null,"abstract":"The aim of the study was to analyze of the safety and feasibility of neoadjuvant chemotherapy (2 cycles of FLOT chemotherapy + chemoradiotherapy) followed by surgery in the treatment of locally advanced gastric cancer. Material and Methods. The phase II clinical trial included 47 patients with histologically verified locally advanced gastric cancer (cT3/T4a-b: 26/21 and cN0/N1–3: 20/27) treated at the A.F. Tsyba MRRC from 2018 to 2021. Lesion location was: upper third in 19 patients (esophageal invasion in 9 patients), middle third in 13 patients, lower third in 14 patients, and entire stomach in 1 patient. The tumor grade was G3 in 23 patients, G2 in 13 patients and G1 in 7 patients. Signet ring cell carcinoma was revealed in 4 patients. The patients received 2 cycles of induction chemotherapy with FLOT regimen (85 mg/m2 oxaliplatin + 200 mg/m2 calcium folinate + 50 mg/m2 docetaxel on day 1 + 2600 mg/m2 fluorouracil as 24-hour infusion from day 1; every 2 weeks) followed by 3d-conformal external beam radiotherapy (46 Gy in daily fractions of 2 Gy) combined with chemotherapy with capecitabine and oxaliplatin). The patients then underwent follow-up examination to exclude disease progression and to plan surgery. Postoperative complications were analyzed using the Clavien-dindo classification. Results. Induction chemotherapy followed by concurrent chemoradiotherapy was well tolerated. Forty-five (95.7 %) patients underwent surgery, 97.7 % of them underwent radical surgery. Postoperative complications were observed in 11 (23.4 %) patients. Grade III and more severe complications were observed in 3 (6.4 %) patients. It should be noted that postoperative mortality rate was low, amounting to 2.2 % (1 patient). Conclusion. Induction FLOT polychemotherapy followed by concurrent chemoradiotherapy was shown to be safe, feasible, and tolerable. Moreover, this treatment regimen did not reduce the frequency of R0 surgeries and did not increase incidence and severity of postoperative complications.","PeriodicalId":21881,"journal":{"name":"Siberian journal of oncology","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140217248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}