The aim of this study was to define safety and oncological adequacy of radical laparoscopic interventions in gastric cancer (GC) in the conditions of a specialized oncology center. Materials and methods. The study included 193 (108 men and 85 women) with a histologically verified gastric adenocarcinoma of varying degrees of differentiation or cricoid-cell carcinoma with stage T1b-T4a cN0-N1 according to the UICC / TNM classification (7th edition). The study was prospective. The main group (laparoscopic interventions) included 81 patients: 54 underwent distal subtotal resections of the stomach (DSRS) and 27 underwent gastrectomies (GE); 101 patients (66 DSRSs and 35 GEs) contained the control group (open interventions). Separate group of 11 patients were with a conversion access. Results. The average duration of the laparoscopic DSRS was 209.6 ± 50.4 minutes, the open DSRS - 168.9 ± 44.1 minutes (p <0.05). The mean duration of laparoscopic GE was 241.7 ± 60.3 min, while the open GE was 185.1 ± 48.9 min (p <0.05). The average volume of intraoperative blood loss for laparoscopic DSRS was 100 ± 65.4 ml, with open DSRS - 217.4 ± 102.5 ml (p <0.05) and for laparoscopic and open GE it was 105.5 ± 45.2 ml and 247.1 ± 87.4 ml, respectively (p <0.05). The average number of removed lymph nodes in laparoscopic DSRS was 24,7 ± 5,1, with open DSRS - 25,4 ± 6,7 (p> 0,05), while in laparoscopic and open GE it was 25,1 ± 6, 4 and 26.8 ± 5.3, respectively (p> 0.05). In all cases of laparoscopic interventions R0 resection was performed. In the structure of postoperative complications the specific gravity of severe complications (IIIb - V degree according to the classification of Clavien-Dindo) in the subgroup of laparoscopic DSRS was 5.6%, in the subgroup of open DSRS - 6% (p> 0.05), and in subgroups of laparoscopic and open GE - 11.1% and 8.6%, respectively (p> 0.05). Postoperative lethality in the group of laparoscopic interventions was 1.2%, in the open surgery group - 2.9% (p> 0.05). The analysis of training curves in the performance of laparoscopic interventions demonstrated that the experience of 30 laparoscopic DSRSs and 15 laparoscopic GEs did not allow promoting an access to the plateau but it demonstrated the trend in reducing the duration of operations when accumulating experience. Conclusions. Radical laparoscopic operations for stomach cancer are safe and oncologically adequate. The absence of long-term results of treatment dictates the necessity of continuing the study.
Results of numerous retrospective studies have confirmed that the degree of cytoreduction and the size of the residual tumor after the primary surgery are the most important factors affecting overall life expectancy as well as the time to progression in patients with ovarian cancer (OC). The article presents the immediate results of the first 16 extensive cytoreductive surgeries in advanced OC performed at the Oncogynecology Department of the N.N. Petrov National Medical Research Center of Oncology.
Introduction: Concept of sentinel lymph node biopsy has been discussed during several last decades, because this idea seems perspective in terms of modern minimally invasive and organ-preserving era. However, this method has several limitations including complicated anatomy of gastric lymph nodes distribution and presence of skip-metastases. Materials and methods: 66 Patients with early gastric cancer, intermediate risk of lymph node metastases and technical possibility of ESD were included into our investigation. Patients were assigned to either ESD with sentinel lymph node biopsy (54 patients), or underwent distal gastrectomy or total gastrectomy with D1+/D2 lymphadenectomy (12 patients) by chance. Results: 56 (84,6%) Patients had at least one sentinel lymph node. 11 (16,7%) Patients with T1a-T1b had metastases in regional lymph nodes, 9 of them in sentinel lymph nodes (2 false-negative result). So, we calculated sensitivity of 84,6%. In one case, the metastasis was located outside the sentinel lymphatic basin, and in the other case, metastasis was detected in a patient with unlit lymph nodes. Conclusion: Today sentinel lymph node biopsy thechnique is considered as a well investigated and widly used method. The concept itself is promising for organ-preserving gastric cancer surgery.
The article presents the world experience of cytoreductive surgery for ovarian cancer (OC) according to literature data and also estimates the thirteen-year experience of the Oncogynecology Department of the N.N. Petrov National Medical Research Center of Oncology in the treatment of OC patients. Materials and methods: In order to analyze the results of treatment for thirteen years it is proposed a comparative evaluation of results of primary and interval cytoreductive operations in 213 patients with OC. For this purpose all patients depending on the start of treatment were divided into two groups: a group of patients with an advanced OC where treatment started with neoadjuvant chemotherapy and a group of patients with an advanced OC where primary cytoreductive surgery was performed at the start of treatment. In these groups the long-term results of treatment were studied: platinum-free interval and life expectancy. Results: When studying the effect of a number of neoadjuvant chemotherapy courses on long-term results of treatment it was established that the best results for platinum-free interval were obtained in a 3-course group of neoadjuvant chemotherapy - platinum-free interval was 9.6 months compared to 6.9 and 4.7 months in groups of 4 and> 5 courses although the differences in the groups did not reach statistically significant rates (p = 0.337). The increase in a number of postoperative chemotherapy courses in our study also statistically was unreliable and had a negative effect on survival: patients from the neoadjuvant chemotherapy group with> 3 courses of postoperative chemotherapy had 9.6 months versus 11.7 months in patients with 3 courses p = 0.787); life expectancy was 35.6 months compared to 30.9 months respectively (p = 0.968). The same tendency was also observed in patients from the primary cytoreduction group: in the group of patients with> 3 courses of postoperative chemotherapy platinum-free interval was 10.2 months compared to 16.3 months in patients with 3 courses (p = 0.312); life expectancy was 54.4 months compared with 48.7 months respectively (p = 0.435). The Kaplan-Meier survival estimation revealed a statistically significant improvement in life expectancy index for patients from the primary cytore-duction group (median survival time 53.7 months, 95 % CI 41.9-73.6 months) compared to patients in the neoadjuvant chemotherapy group (median life expectancy 33.0 months, 95 % CI 20.6-42.0 months, p <0.000001).
Extralevator abdominal-perineal extirpation of the rectum causes a vast perineal wound, which requires to be closed. The article considers different approaches to perineal wound repair including primary closure, mesh reconstruction and muscular flap reconstruction.
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