RESUMO
Introduction: Laparoscopic techniques have been increasingly adopted in the field of General Surgery in the last decades. The main disadvantages of laparoscopy are related to limited degrees of freedom of instruments and poor ergonomics, which are associated with a steep learning curve. Robotic surgery overcomes most of the technical limitations of laparoscopic surgery and has the potential to expand the indications of minimal access surgery (MAS) in procedures that are difficult to perform using laparoscopy. Methods: Patients who underwent MAS resections of gastric gastrointestinal stromal tumours (GIST) between January 2002 and October 2018 in a single Surgical Department were retrospectively analysed. Demographic data as well as the following characteristics were recorded for each patient: age, sex, symptoms, tumour location and size, type of surgical procedure, intraoperative blood loss, operative time, length of hospital stay, histopathological assessment of resection margins, and incidence of perioperative complications. Results: The mean patient age was 58 (range, 27-81 years). Most lesions were found on the great curvature (7) and in the distal stomach or antrum (7), respectively. Twenty patients underwent laparoscopic resection, while five patients had robotic resection of gastric GISTs. Surgical laparoscopic treatment consisted of antrectomy (n=4) and wedge gastrectomy (n=16). In all robotic cases a wedge gastrectomy was performed. One patient was converted to open surgery due to adhesions from previous operation. The mean operative time was 130 minutes (range, 70-210 minutes).The mean tumour size was 3.8 cm (range, 2-7 cm). There were no complications except one case that required reoperation for postoperative bleeding. There were no mortalities. Conclusion: The MAS approach of gastric GISTs is safe and effective and it is associated with low morbidity. Therefore, it should constitute the first option in patients with small tumours and favourable locations. The only limiting factor for the widespread use of MAS resections for gastric GISTs is surgeon expertise in this challenging technique.
Assuntos
Gastrectomia/métodos , Tumores do Estroma Gastrointestinal , Laparoscopia , Procedimentos Cirúrgicos Robóticos , Neoplasias Gástricas , Adulto , Idoso , Idoso de 80 Anos ou mais , Competência Clínica , Gastrectomia/normas , Tumores do Estroma Gastrointestinal/cirurgia , Humanos , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos , Estudos Retrospectivos , Neoplasias Gástricas/cirurgia , Resultado do TratamentoRESUMO
In the last decades, surgical techniques have evolved, introducing better, more sophisticated devices, aimed at providing the least traumatizing surgical operations, with improved perioperative and longtime results. Based on the results of randomized control trials, current guidelines recommend laparoscopic approach for the treatment of colonic cancer where there is appropriate expertise. Compared with colonic resection, laparoscopic rectal resections are technically challenging procedures associated with a low adoption rate, high conversion rate, debatable functional and oncological results. These drawbacks created the need for a better tool. Robotic surgery emerged to overcome the limits of laparoscopy in terms of visibility and instrument maneuverability. Laparoscopic approach is best suited for colon and superior rectal cancers, while robotic approach is best indicated in medium and inferior rectal cancers(especially in men with a narrow pelvis and in patients with high BMI). In these cases the robotic approach greatly facilitate the minimally invasive approach and, most of the time, allow preservation of the pelvic autonomic nerves leading to a better quality of life. Due to increased costs and relative unavailability of this method, it is difficult to anticipate if the adoption rate of minimally invasive surgery in colorectal cancer will increase significantly.
Assuntos
Neoplasias do Colo/cirurgia , Laparoscopia , Neoplasias Retais/cirurgia , Procedimentos Cirúrgicos Robóticos , Cirurgia Colorretal/tendências , Humanos , Procedimentos Cirúrgicos Minimamente Invasivos/tendências , Qualidade de Vida , Transferência de Tecnologia , Resultado do TratamentoRESUMO
BACKGROUND: Recent studies suggest that lymph node ratio (LNR) has significantly better prognostic power than N-status in patients with colorectal cancer, in particular when the number of evaluated lymph nodes (LNs) was insufficient. The aim of this study was to assess the prognostic value of LNR in patients with resected synchronous colorectal liver metastases (SCLMs) and less than 12 examined LNs. METHODS: A prospectively maintained database of patients with resected SCLMs was queried for patients with less than 12 LNs evaluated at the time of surgery. X-tile software was used to determine the LNR cutoff value able to divide the patients in two subgroups with distinct prognosis. Overall survival (OS) and disease-free survival (DFS) rates were compared by log-rank test. A multivariate Cox regression analysis identified independent prognostic factors. RESULTS: A cutoff LNR value of 0.22 divided patients into Low-LNR group (35 patients) and High-LNR group (36 patients). Both OS and DFS rates were significantly higher in Low-LNR group than those in High-LNR group. Independent predictors of poor OS were High-LNR (HR: 2.841, 95% CI: 1.480-5.453, p value = 0.002), bilobar SCLMs (HR: 2.253, 95% CI: 1.144-4.437, p value = 0.019) and lack of adjuvant chemotherapy (HR: 2.702, 95% CI: 1.448-5.043, p value = 0.002), while the only independent predictor of poor DFS was High-LNR (HR: 2.531, 95% CI: 1.259-5.090, p value = 0.009). CONCLUSIONS: LNR > 0.22 was independently associated with poor OS and DFS in patients with resected SCLMs and less than 12 evaluated LNs.