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Laparoscopic D2 Gastrectomy for Gastric Cancer: Mid-Term Results and Current Evidence. J Laparoendosc Adv Surg Tech A 2019; 29:495-502. [PMID: 30526290 DOI: 10.1089/lap.2018.0474] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Although the first laparoscopic gastrectomy was performed in 1991, there was a long delay until it was incorporated into the regular practice of western surgeons. In Brazil, there are only few case series reported and data on its safety and efficacy along with mid- and long-term results are desired. OBJECTIVE Present the mid-term results of laparoscopic gastrectomy with curative intent in the treatment of gastric adenocarcinoma and review the current evidence on the therapy of this neoplasia with the laparoscopic access. METHODS Patients who underwent D2 laparoscopic gastrectomy for gastric adenocarcinoma were retrospectively reviewed. RESULTS Sixty-nine patients met the inclusion criteria. The mean age was 59.2 years and the mean body mass index was 24.2 kg/m2. Subtotal gastrectomy was performed in 73.9%. The mean number of harvested lymph nodes was 36.7, increased lymph node count and shorter operative time were observed in the last 34 cases. Median hospital stay was 8 days. Postoperative complications occurred in 22 (31.9%) cases. Surgical mortality was 4.3%. CONCLUSION Laparoscopic gastrectomy can be performed safely with excellent short- and mid-term results. As experience increases, surgical duration is reduced and lymph node count rises.
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Risk assessment of lymph node metastases in early gastric adenocarcinoma fulfilling expanded endoscopic resection criteria. Gastrointest Endosc 2018; 88:912-918. [PMID: 30053392 DOI: 10.1016/j.gie.2018.07.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 07/14/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Early gastric cancer (EGC) is known to present a low rate of lymph node metastases (LNMs). Gastrectomy with D2 lymphadenectomy is usually curative for EGC. Endoscopic submucosal dissection (ESD) is a well-accepted treatment modality for lesions that meet the classic criteria: those mucosal differentiated adenocarcinoma measuring 20 mm or less, without ulceration. Expanded criteria for ESD have been proposed based on a null LNM rate from large gastrectomy series from Japan. Patients with LNM have been reported in Western centers, heightening the need for validation of expanded criteria. Our aim was to assess the risk of LNM in gastrectomy specimens of patients with EGC who met the expanded criteria for ESD. METHODS We conducted an evaluation of gastrectomy specimens including LNM staging of patients submitted to gastrectomy for EGC in a 39-year retrospective cohort. RESULTS A total of 389 surgical specimens were included. From them, 135 fulfilled criteria for endoscopic resection. None of the 31 patients with classic criteria had LNM. From the 104 patients with expanded criteria, 3 had LNM (n = 104 [2.9%], 95% confidence interval, .7%-8.6%), all of them with undifferentiated tumors without ulceration, measuring less than 20 mm. CONCLUSIONS There is a small risk of LNM in EGC when expanded criteria for ESD are met. Refinement of the expanded criteria for the risk of LNM may be desirable in a Brazilian cohort. Meanwhile, the decision to complement the endoscopic treatment with gastrectomy will have to take into consideration the individual risk of perioperative morbidity and mortality.
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Validation of classic and expanded criteria for endoscopic submucosal dissection of early gastric cancer: 7 years of experience in a Western tertiary cancer center. Clinics (Sao Paulo) 2018; 73:e553s. [PMID: 30328950 PMCID: PMC6157092 DOI: 10.6061/clinics/2018/e553s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 06/07/2018] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE Our aim was to evaluate the Japan Gastroenterological Endoscopy Society criteria for endoscopic submucosal resection of early gastric cancer (EGC) based on the experience in a Brazilian cancer center. METHODS We included all patients who underwent endoscopic submucosal resection for gastric lesions between February 2009 and October 2016. Demographic data and information regarding the endoscopic resection, pathological report and follow-up were obtained. Statistical calculations were performed with Fisher's exact test and chi-square tests, with 95% confidence intervals. RESULTS In total, 76% of the 51 lesions were adenocarcinomas, 16% were adenomas, and 8% had other diagnoses. The average size was 19.9 mm (±11.7). The average procedure length was 113.9 minutes (±71.4). The complication rate was 21.3%, with only one patient who needed surgical treatment (transmural perforation). Among the adenocarcinomas, 39.5% met the classic criteria for curability, 31.6% met the expanded criteria and 28.9% met the criteria for noncurative resection. Analysis of the indication criteria and curability revealed differences among cases with "only-by-size" expanded criteria (64.28%), other expanded criteria (40%) and classic criteria (89.47%), with a p-value of 0.049. During follow-up (15.8 months; ±14.3), 86.1% of the EGC patients had no recurrence. When well-differentiated and poorly differentiated lesions or lesions included in the classic and expanded criteria were compared, there were no differences in recurrence. The noncurative group presented a higher recurrence rate than the classic group (p=0.014). CONCLUSION These results suggest that the Japanese endoscopic submucosal resection criteria might be useful for endoscopic treatment of EGC in Western countries.
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Characterization of oncogene suppressor marker expression in patients with submucosal gastric carcinoma. Mol Clin Oncol 2018; 8:477-482. [PMID: 29468062 DOI: 10.3892/mco.2017.1545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 12/06/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to determine the clinical significance of p53 and p21ras p21wafl, p27kip1 and p16ink4a expression in cases of early gastric cancer. A total of 81 patients who had undergone gastrectomy with D2 lymphadenectomy between 1971 and 2004 were retrospectively investigated. The immunohistochemical expression of p21ras, p53, p21waf1/cip1, p27kip1 and p16ink4a in the tissues was evaluated. In normal, metaplastic and tumoral mucosa, p53 was positive in 53, 87.3, and 87.1% of the cases, respectively. In the same tissues, p21ras was positivE in 85.3, 86 and 96.8%, respectively. Positivity FOR p16ink4a was DETECTED IN 46.3, 91.1 and 86% OF THE CASES, respectively, WHEREAS p27kip1 WAS positiVE IN 60, 94.7 and 95.3%, and p21wafl/cip1 WAS positivE IN 32.4, 72.7 and 71.4% OF THE CASES, respectively. All THE tumors WERE positive for p53. Tumors with lymph node invasion presented WITH OVERexpression (+4) of p53 in 47% of the cases VS. 17% OF patients who DID not HAVE lymph node involvement. THEREFORE, higher expression of p53, p21ras and p21wafl/cip1 IN the tumor exhibited a statistically significant association with lymph node involvement.
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GASTRIC NEUROENDOCRINE TUMOR: REVIEW AND UPDATE. ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA : ABCD = BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY 2017; 30:150-154. [PMID: 29257854 PMCID: PMC5543797 DOI: 10.1590/0102-6720201700020016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 09/21/2016] [Indexed: 02/08/2023]
Abstract
INTRODUCTION The frequency of gastric neuroendocrine tumors is increasing. Reasons are the popularization of endoscopy and its technical refinements. Despite this, they are still poorly understood and have complex management. AIM Update the knowledge on gastric neuroendocrine tumor and expose the future perspectives on the diagnosis and treatment of this disease. METHOD Literature review using the following databases: Medline/PubMed, Cochrane Library and SciELO. Search terms were: gastric carcinoid, gastric neuroendocrine tumor, treatment. From the selected articles, 38 were included in this review. RESULTS Gastric neuroendocrine tumors are classified in four clinical types. Correct identification of the clinical type and histological grade is fundamental, since treatment varies accordingly and defines survival. CONCLUSION Gastric neuroendocrine tumors comprise different subtypes with distinct management and prognosis. Correct identification allows for a tailored therapy. Further studies will clarify the diseases biology and improve its treatment.
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Minimally invasive surgery for gastric cancer in Brazil: current status and perspectives-a report from the Brazilian Laparoscopic Oncologic Gastrectomy Group (BLOGG). Transl Gastroenterol Hepatol 2017; 2:45. [PMID: 28616601 PMCID: PMC5460102 DOI: 10.21037/tgh.2017.03.17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 03/22/2017] [Indexed: 02/05/2023] Open
Abstract
The minimally invasive surgery for gastric cancer in Brazil has begun about two years after the first laparoscopic gastrectomy (LG) performed by Kitano in Japan, in 1991. Although the report of first surgeries shows the year of 1993, there was no dissemination of the technique until the years 2010. At that time with the improvement of optical devices, laparoscopic instruments and with the publications coming from Asia, several Brazilian surgeons felt encouraged to go to Korea and Japan to learn the standardization of the LG. After that there was a significant increase in that type of surgery, especially after the IRCAD opened a branch in Brazil. The growing interest for the subject led some services to begin their own experience with the LG and, since the beginning, the results were similar with those found in the open surgery. Nevertheless, there were some differences with the papers published initially in Japan and Korea. In those countries, the surgeries were laparoscopic assisted, meaning that, in the majority of cases, the anastomoses were done through a mini-incision in the end of the procedure. In Brazil since the beginning it was performed completely through laparoscopic approach due to the skills acquired by Brazilian surgeons in bariatric surgeries. Another difference was the stage. While in the east the majority of cases were done in T1 patients, in Brazil, probably due to the lack of early cases, the surgeries were done also in advanced cases. The initial experience of Zilberstein et al. revealed low rates of morbidity without mortality. Comparing laparoscopic and open surgery, the group from Barretos/IRCAD showed shorter surgical time (216×255 minutes), earlier oral or enteral feeding and earlier hospital discharge, with a smaller number of harvested lymph nodes (28 in laparoscopic against 33 in open surgery). There was no significant difference regarding morbidity, mortality and reoperation rate. In the first efforts to publish a multicentric study the Brazilian Gastric Cancer Association (BGCA) collected data from three institutions analyzing 148 patients operated from 2006 to 2016. There were 98 subtotal, 48 total and 2 proximal gastrectomies. The anastomoses were totally laparoscopic in 105, laparoscopic assisted in 21, cervical in 2, and 20 open (after conversion). The reconstruction methods were: 142 Roux-en-Y, two Billroth I, and three other types. The conversion rate was 13.5% (20/148). The D2 dissection was performed in 139 patients. The mean number of harvested lymph nodes was 34.4. If we take only the D2 cases the mean number was 39.5. The morbidity rate was 22.3%. The mortality was 2.7%. The stages were: IA-59, IB-14, IIA-11, IIB-15, IIIA-9, IIIB-19, IIIC-11 and stage IV-three cases. Four patients died from the disease and 10 are alive with disease. The participating services have already begun the robotic gastrectomy with satisfactory results. The intention of this group is to begin now a prospective multicentric study to confirm the data already obtained with the retrospective studies.
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Management of postoperative complications of lymphadenectomy. Transl Gastroenterol Hepatol 2016; 1:92. [PMID: 28138657 DOI: 10.21037/tgh.2016.12.05] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 12/09/2016] [Indexed: 02/03/2023] Open
Abstract
Gastric cancer remains a disease with poor prognosis, mainly due to its late diagnosis. Surgery remains as the only treatment with curative intent, where the goal is radical resection with free-margin gastrectomy and extended lymphadenectomy. Over the last two decades there has been an improvement on postoperative outcomes. However, complications rate is still not negligible even in high volume specialized centers and are directly related mainly to the type of gastric resection: total or subtotal, combined with adjacent organs resection and the extension of lymphadenectomy (D1, D2 and D3). The aim of this study is to analyze the complications specific-related to lymphadenectomy in gastric cancer surgery.
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Favorable minimal invasive surgery in the treatment of superior mesenteric artery syndrome: Case report. Int J Surg Case Rep 2016; 29:223-226. [PMID: 27914348 PMCID: PMC5133654 DOI: 10.1016/j.ijscr.2016.09.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 09/09/2016] [Accepted: 09/10/2016] [Indexed: 12/01/2022] Open
Abstract
INTRODUCTION The Superior Mesenteric Artery Syndrome (SMAS) is a rare form of intestinal obstruction. The diagnosis is based on findings from imaging studies, including vascular compression of the duodenum by the SMA and can be associated with duodenal dilatation. PRESENTATION OF CASE We report a case of a patient with SMAS and recurrent episodes of intestinal obstruction, which was successfully treated by laparoscopic duodenojejunostomy. DISCUSSION The initial treatment is usually conservative for patient's clinical improvement. Surgery is indicated when conservative treatment fails as well for patients with recurrent symptoms. Minimal invasive surgery might be a good approach, specially in patients who suffers from this disease and currently are in depleted health conditions. CONCLUSION The procedure herein demonstrated may be considered safe and resolutive, with good visualization of structures, relative short surgical time and fast post-operative recovery.
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Robotic digestive tract reconstruction after total gastrectomy for gastric cancer: a simple way to do it. Int J Med Robot 2015; 12:598-603. [DOI: 10.1002/rcs.1720] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 10/06/2015] [Accepted: 11/09/2015] [Indexed: 02/06/2023]
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Predicting recurrence after curative resection for gastric cancer: External validation of the Italian Research Group for Gastric Cancer (GIRCG) prognostic scoring system. Eur J Surg Oncol 2015; 42:123-31. [PMID: 26365755 DOI: 10.1016/j.ejso.2015.08.164] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 08/09/2015] [Accepted: 08/13/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Most nomograms for Gastric Cancer (GC) were developed to predict overall survival (OS) after curative resection. The Italian Research Group for Gastric Cancer (GIRCG) prognostic scoring system (PSS) was designed to predict the recurrence risk after curative treatment based on pathologic tumor stage and treatment performed (D1-D2/D3 lymphadenectomy). This study was carried out to externally validate the GIRCG's PSS. PATIENTS AND METHODS Adopting the same criteria used by GIRCG to build the PSS, 185 patients with GC operated with curative intention were selected. The median follow-up period was 77.8 months (1.93-150.8) for all patients and 102.5 months (60.9-150.8) for patients free of disease. The NRI (net reclassification improvement) was calculated to estimate the overall improvement in the reclassification of patients using the PSS in place of the TNM stage system. RESULTS GC recurrence occurred in 70 (37.8%) patients. The mean time to recurrence was 22.2 (range 1.9-98.1) months. For patients with recurrence, the gain in the proportion of reclassification was 0.257 (p < 0.001), indicating an improvement of 26%. For patients without recurrence, the gain in the proportion of reclassification was -0.122 (p < 0.001), indicating a worsening of 12%. The NRI calculated was 0.135 (p = 0.0527). CONCLUSION The GIRCG's PSS, which predicts the likelihood of recurrence after radical surgical treatment for GC, is more accurate than TNM system to predict recurrence mainly for high-risk patients. Yet, the PSS does not have the same effectiveness for low-risk patients, overestimating the chance of recurrence occurs even for disease-free patients.
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Hepatectomy: a critical analysis on expansion of the indications. ACTA ACUST UNITED AC 2014; 27:47-52. [PMID: 24676299 PMCID: PMC4675493 DOI: 10.1590/s0102-67202014000100012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 10/18/2013] [Indexed: 01/08/2023]
Abstract
Background Hepatic resection has evolved to become safer, thereby making it possible to
expand the indications. Aim To assess the results from a group of patients presenting these expanded
indications. Method Were prospectively studied all the hepatectomy procedures performed for hepatic
tumor resection. Patients with benign and malignant primary and secondary tumors
were included. Were included variables such as age, gender, preoperative
diagnosis, preoperative treatment, type of operation performed, need for
transfusion, final anatomopathological examination and postoperative evolution.
The patients were divided into two groups: group A, with a traditional indication
for hepatectomy; and group B, with an expanded indication (tumors in both hepatic
lobes, extensive resection encompassing five or more segments, cirrhotic livers
and postoperative chemotherapy using hepatotoxic drugs). Results Were operated 38 patients, and 40 hepatectomies were performed: 28 patients in
group A and 10 in group B. The mean age was 57.7 years, and 25 patients were
women. Three in group B were operated as two separate procedures. Groups A and B
received means of 1.46 and 5.5 packed red blood cell units per operation,
respectively. There were three cases with complications in group A (10.7%) and six
in group B (60%). The mortality rate in group A was 3.5% (one patient) and in
groups B, 40% (four patients). The imaging examinations were sensitive for the
presence of tumors but not for defining the type of tumor. The blood and
derivative transfusion rates, morbidity and mortality were greater in the group
with expanded indications and more extensive surgery. Conclusion The indications for liver biopsy and portal vein embolization or ligature can be
expanded, with special need of cooperation of the anesthesiology department and
the use of hepatic resection devices to diminish blood transfusion.
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The written informed consent form (WICF): factors that interfere with acceptance. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2014; 26:200-5. [PMID: 24190378 DOI: 10.1590/s0102-67202013000300009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 05/28/2013] [Indexed: 11/22/2022]
Abstract
BACKGROUND The written informed consent form (WICF) provides information that must be written in simple, easily understood language, highlighting voluntary participation safeguards, risks, possible benefits, and procedures. Currently, the possibility that research subjects do not fully understand the text of the WICF or their rights as participants, despite having signed the WICF and agreed to participate in the study, has been a point of discussion. AIM To evaluate the readability of the WICFs, as well as to correlate research subject acceptance of the WICF with demographic status, social factors, risk-benefit relationship, and education level. METHODS The study involved 793 patients treated in public or private hospitals and asked to give informed consent for their inclusion. Were reviewed patient medical charts in order to obtain demographic and social data, and was used the Flesch Reading Ease and the Flesch-Kincaid Readability Indices to evaluate the reading level of the WICF texts. RESULTS Acceptance was higher (99.7%) among patients treated in public health care facilities and among patients (99.73%) who participated in protocols involving lower risk. Although acceptance was not influenced by education level, 462 patients (58.26%) had eight or less years of schooling. The obtained readability index ranged from 9.9 to 12 on the Flesch-Kincaid test, and from 33.1 to 51.3 on the Flesch Reading Ease test. CONCLUSION The WICFs had high degree of reading difficulty. Although patient acceptance was not found to be related to demographic or social factors, it was found to be influenced by the risk-benefit relationship.
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Brazilian consensus in gastric cancer: guidelines for gastric cancer in Brazil. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2014; 26:2-6. [PMID: 23702862 DOI: 10.1590/s0102-67202013000100002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 11/16/2012] [Indexed: 12/18/2022]
Abstract
BACKGROUND In Brazil, gastric cancer is the fourth most common malignancy among men and sixth among women. The cause is multivariate and the risks are well known. It has prognosis and treatment defined by the location and staging of the tumor and number of lymph nodes resected and involved. AIM The Brazilian Consensus on Gastric Cancer promoted by ABCG was designed with the intention to issue guidelines that can guide medical professionals to care for patients with this disease. METHODS Were summarized and answered 43 questions reflecting consensus or not on diagnosis and treatment that may be used as guidance for its multidisciplinary approach. The method involved three steps. Initially, 56 digestive surgeons and related medical specialties met to formulate the questions that were sent to participants for answers on scientific evidence and personal experience. Summaries were presented, discussed and voted in plenary in two other meetings. They covered 53 questions involving: diagnosis and staging (six questions); surgical treatment (35 questions); chemotherapy and radiotherapy (seven questions) and anatomopathology, immunohistochemistry and perspective (five questions). It was considered consensus agreement on more than 70% of the votes in each item. RESULTS All the answers were presented and voted upon, and in 42 there was consensus. CONCLUSION It could be developed consensus on most issues that come with the care of patients with gastric cancer and they can be transformed in guidelines.
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Thromboembolism prevention in surgery of digestive cancer. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2013; 25:216-23. [PMID: 23411918 DOI: 10.1590/s0102-67202012000400002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Accepted: 11/10/2012] [Indexed: 12/21/2022]
Abstract
BACKGROUND The venous thromboembolism is a common complication after surgical treatment in general and, in particular, on the therapeutic management on cancer. Surgery of the digestive tract has been reported to induce this complication. Patients with digestive cancer have substantial increased risk of initial or recurrent thromboembolism. AIM To provide to surgeons working in digestive surgery and general surgery guidance on how to make safe thromboprophylaxis for patients requiring operations in the treatment of their gastrointestinal malignancies. METHODS The guideline was based on 15 relevant clinical issues and related to the risk factors, treatment and prognosis of the patient undergoing surgical treatment of cancer on digestive tract. They focused thromboembolic events associated with operations and thromboprophylaxis. The questions were structured using the PICO (Patient, Intervention or Indicator, Comparison and Outcome), allowing strategies to generate evidence on the main primary bases of scientific information (Medline / Pubmed, Embase, Lilacs / Scielo, Cochrane Library, PreMedline via OVID). Evidence manual search was also conducted (BDTD and IBICT). The evidence was recovered from the selected critical evaluation using discriminatory instruments (scores) according to the category of the question: risk, prognosis and therapy (JADAD Randomized Clinical Trials and New Castle Ottawa Scale for studies not randomized). After defining potential studies to support the recommendations, they were selected by the strength of evidence and grade of recommendation according to the classification of Oxford, including the available evidence of greater strength. RESULTS A total of 53,555 papers by title and / or abstract related to issue were found. Of this total were selected (1st selection) 478 studies that were evaluated as full-text. From them to support the recommendations were included in the consensus 132 papers. The 15 questions could be answered with evidence grade of articles with 31 A, 130 B, 1 C and 0 D. CONCLUSION It was possible to prepare safe recommendations as guidance for thromboembolism prophylaxis in operations on the digestive tract malignancies, addressing the most frequent topics of everyday work of digestive and general surgeons.
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Results of D2 gastrectomy for gastric cancer: lymph node chain dissection or multiple node resection? ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2013; 25:161-4. [PMID: 23411804 DOI: 10.1590/s0102-67202012000300005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Accepted: 06/17/2012] [Indexed: 12/17/2022]
Abstract
BACKGROUND Eastern literature is remarkable for presenting survival rates for surgical treatment of gastric adenocarcinoma superior to those presented in western countries. AIM To analyze the long-term result after D2 gastrectomy for gastric cancer. METHODS Two hundred seventy four underwent gastrectomy with D2 lymph node dissection as exclusive treatment. The inclusion criteria were: 1) lymph node removal according to Japanese standardized lymphatic chain dissection; 2) potentially curative surgery described in medical records as D2 or more lymph node dissection; 3) tumoral invasiveness of gastric wall restricted to the organ (T1-T3); 4) absence of distant metastasis (N0-N2/M0); 5) a minimum of five years follow-up. Clinical pathological data included sex, age, tumor location, Borrmann's macroscopic tumor classification, type of gastrectomy, mortality rates, hystological type, TNM classification and staging according to UICC TNM 1997. RESULTS Total gastrectomy was performed in 77 cases (28.1%) and subtotal gastrectomy in 197 (71.9%). The tumor was located in the upper third in 28 cases (10.2%), in the middle third in 53 (19.3%), and in the lower third in 182 (66.5%). Among patients that had their Borrmann's classification assigned, five cases (1.8%) were BI, 34 (12.4%) BII, 230 (84.0%) BIII and 16 (5.9%) BIV. Tumors were histologically classified as Laurén intestinal type in 119 cases (43.4%) and as diffuse type in 155 (56.6%). According to UICC TNM 1997 classification, early gastric cancer (T1) was diagnosed in 68 cases (24.8 %); 51 (18.6%) were T2, and 155 (56.6%) were T3. No lymph node involvement (N0) was observed in 129 cases (47.1%), whereas 100 (36.5%) were N1 (1-6 lymph nodes), and 45 (16.4%) were N2 (7-15 lymph nodes).The median number of lymph nodes dissected was 35. The overall long-term (five-year) survival rate, for stages I to IIIb was 70.4%. CONCLUSION Digestive surgeons must be stimulated in performing D2 gastrectomies to avoid wasting the only treatment to gastric adenocarcinoma that has proven to be efficient up to this days. It must be emphasized that standardized lymph nodes dissection according to tumor location is more important that only the number of removed nodes.
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Absence of RKIP expression is an independent prognostic biomarker for gastric cancer patients. Oncol Rep 2012; 29:690-6. [PMID: 23232914 DOI: 10.3892/or.2012.2179] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Accepted: 10/22/2012] [Indexed: 11/06/2022] Open
Abstract
Gastric cancer is a leading cause of cancer-related mortality, and the presence of lymph node metastasis an important prognostic factor. Downregulation of RKIP has been associated with tumor progression and metastasis in several types of neoplasms, being currently categorized as a metastasis suppressor gene. Our aim was to determine the expression levels of RKIP in gastric tissues and to evaluate its impact in the clinical outcome of gastric carcinoma patients. RKIP expression levels were studied by immunohistochemistry in a series of gastric tissues. Overall, we analysed 222 non-neoplastic gastric tissues, 152 primary tumors and 42 lymph node metastasis samples. We observed that RKIP was highly expressed in ~83% of non-neoplastic tissues (including normal tissue and metaplasia), was lost in ~56% of primary tumors and in ~90% of lymph node metastasis samples. Loss of RKIP expression was significantly associated with several markers of poor clinical outcome, including the presence of lymph node metastasis. Furthermore, the absence of RKIP protein constitutes an independent prognostic marker for these patients. In conclusion, RKIP expression is significantly lost during gastric carcinoma progression being almost absent in lymph node metastasis samples. Of note, we showed that the absence of RKIP expression is associated with poor outcome features of gastric cancer patients, this being also an independent prognostic marker.
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Esplenose mimetizando gist: relato de caso e revisão da literatura. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2011. [DOI: 10.1590/s0102-67202011000200019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Alterações metabólicas e digestivas no pós-operatório de cirurgia bariátrica. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2010. [DOI: 10.1590/s0102-67202010000400012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
RACIONAL: As alterações na digestão e perdas de nutrientes são aspectos relevantes na redução do peso e na manutenção do estado nutricional do paciente submetido à gastroplastia, mas poucos estudos estão disponíveis na literatura. OBJETIVO: Estudar as alterações sistêmicas decorrentes da redução de peso ao longo do tempo, após o tratamento cirúrgico. MÉTODO: Estudo tipo coorte prospectivo com amostra de 44 indivíduos, obesos mórbidos, operados com derivação gástrica em Y-de-Roux e com anel de silicone. Análises clínicas foram realizados em tempos distintos: período pré-operatório, seis meses após a operação e durante os anos de 2006 e 2007. Os exames efetuados foram: glicemia de jejum; albumina sérica; colesterol total; hemoglobina; gordura fecal; substância redutora nas fezes; sangue oculto nas fezes. Endoscopia digestiva alta também foi realizada para medir o anel em centímetros. Ainda foram estudados o genero, idade, altura, peso, IMC, diabetes, e o tempo após a operação. RESULTADOS: A mediana do peso foi de 141 kg (91 - 216) e o IMC, teve mediana de 49,28 kg/m² (36,3 - 80,31). A anemia se manifestou em oito (18,2%) pacientes e 13 (29,5%) apresentaram albumina com valores reduzidos. No final do estudo, a média dos meses de seguimento foi de 52,56 + 8,84 meses. O peso médio foi de 86,96 + 15,44 kg e a média do IMC foi de 32,41 + 4,82 kg/m². A pesquisa de gordura fecal foi positiva em 16 pacientes (36,4%), substância redutora positiva nas fezes em um (2,3%) paciente e presença de sangue oculto nas fezes foi positiva em 13(29,5%) pacientes. O diâmetro interno do anel de silicone apresentou uma média de 0,75 cm + 0,23 cm. CONCLUSÃO: Após a operação ocorreu perda significativa de peso, porém, o IMC ainda se mantinha acima de 35 kg/m² na maioria dos pacientes acompanhados por longo tempo. Houve melhora substancial dos níveis de colesterol e glicemia. O diâmetro do anel não demonstrou associação significativa com a redução do peso; contudo, os pacientes com anel superior a 1 cm, não apresentaram anemia ou hipoaluminemia, estando clinicamente melhores do que aqueles com anel menor.
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Abstract
BACKGROUND: Gastric volvulus is frequently an asymptomatic disease, and it is usually diagnosed during radiographic examination of the superior digestive tract. The acute form, however, can spawn serious and lethal clinical consequences. This disease is defined by the anomalous rotation of the stomach over itself, and it can be classified according to type, extension, direction, etiology, and clinical presentation. AIM: To review the records from 38 patients with gastric volvulus diagnosed in the Hospital das Clínicas of University of São Paulo between 1968 and 2001. METHODS: This is retrospective analysis of 38 patient records. It was collected from each patient: name, age of first symptom appearance, gender, main clinical findings and complementary exams, volvulus type, extension, direction, etiology, and clinical presentation, therapeutic procedures, type of surgery performed, eventual recurrence, and long-term evolution. RESULTS: It was observed that occurrences of gastric volvulus are mainly secondary (75.8%). For the majority of patients (n=33), surgery was chosen as the treatment option: chronic disease in 29 cases and acute in four. Conservative treatment was reserved only for patients with no clinical conditions to surgical treatment. Anterior gastropexy was associated to high recurrence rates. Suturing the low gastric curve to the hepatic capsule and the transverse colon to the left subphrenic space (Tanner´s operation) seemed to be the technical treatment of choice for primary gastric volvulus. CONCLUSION: Treatment of gastric volvolus must be tailored according the etiology of the disease.
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Behavior of gastric cancer in Brazilian population. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2009. [DOI: 10.1590/s0102-67202009000100007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND: Gastric cancer (GC) is a predominately male disease. Usually for every female that suffers from this condition there are two males and occurred an increase in the number of females in last decades. Brazil is poor in data about this issue. AIM: To verify if in Brazil it happened: a) a change in the gender ratio and on the average age of the patients; b) an increase in the number of patients with 70 years of age or more suffering from this disease; c) changes in the gender ratio and in the average age in the several gastric locations during the period of study. METHODS: The medical history of patients diagnosed with primary gastric adenocarcinoma, between 1971 and 1998 were obtained at Hospital das Clínicas of the University of São Paulo, São Paulo, SP, Brazil. Exclusion criteria were: patients suffering from a non epithelial gastric malignancy; adenocarcinoma from the intestinal metaplasia in the distal esophagus invading the proximal stomach and patients submitted to a gastric resection, due to a benign or malignant tumor during the last five years prior to the surgical procedure analyzed in this study. The patients were divided into 10 years age groups and also divided in three groups, according to their ages and time intervals. Interrelationships between gender and age, and with tumor´s location on gastric wall were analyzed. RESULTS: From 1971 to 1998, 1578 patients with GC were hospitalized. Among them, 1021 were treated with gastric resection, corresponding to 64.7% of all patients. There was an increase in the proportion of patients older than 70 years, and decrease between 41 and 70 years. There was no statistical significant difference among the average ages and the different locations. There were significant differences for the locations favoring proximal third and stump, both more prevalent in males. CONCLUSIONS: a) Occurred modifications in the ratio between genders: greater number of women and an increase in the number of male patients in the age group between 41 and 70 years; b) it was proved the greater number of occurrences in patients over 70 years of age; c) there was a greater increase in the male predominance in the tumors located in the stomach´s proximal third.
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Trends in tumor location in gastric carcinoma over a 28-year period. HEPATO-GASTROENTEROLOGY 2007; 54:1297-301. [PMID: 17629093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
BACKGROUND/AIMS Gastric cancer is still a leading cause of cancer death in the world and in Brazil. Historically a majority of gastric tumors were located in the distal third of the stomach. However, several studies have shown a shift in tumor location towards the proximal third. METHODOLOGY Japanese rules for gastric cancer treatment were followed. All patients that were submitted to surgical resection for gastric cancer between 1971 and 1998 were included. These patients were divided into 3 time periods and classifled according to tumor location. RESULTS 1021 patients underwent gastric resection for adenocarcinoma. The distal third of the stomach (53.7%) was the most common site. The proportion of tumors located in the proximal and middle thirds of the stomach increased significantly from 8.1% to 15% and 16.2 to 29.8% respectively at the last decade. CONCLUSIONS The findings of this study suggest an increase in the incidence of tumors to the proximal third of the stomach. However the high incidence of these tumors reported in literature is not confirmed.
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Câncer gástrico no idoso: quando não operar? Rev Assoc Med Bras (1992) 2007; 53:8. [PMID: 17420883 DOI: 10.1590/s0104-42302007000100007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Rectal procidentia treatment by perineal rectosigmoidectomy combined with levator ani repair. HEPATO-GASTROENTEROLOGY 2006; 53:213-7. [PMID: 16608027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
BACKGROUND/AIMS Perineal rectosigmoidectomy has gained acceptance as a valid alternative to treat rectal procidentia with the advantage of decreased surgical risk, shorter recovery time, and lower complication rates when compared to abdominal approaches, although controversies still exist about its recurrence rates and functional results. This study aimed to evaluate the results of perineal rectosigmoidectomy combined with repair of the levator ani muscles to treat rectal procidentia. METHODOLOGY Forty-four patients who underwent perineal rectosigmoidectomy with levatorplasty for rectal procidentia between 1985 and 2000 were retrospectively analyzed. RESULTS There were 41 women and 3 men with mean age of 76 (57 to 96) years. Mean duration of symptoms was 29.2 (1 to 40) months. Mean length of prolapsed rectum was 8.3cm and the average size of the resected segment was 21.2cm. The complication rate was 9.1% and there was no mortality associated with this procedure. Mean hospital stay was 3.9 days. During a minimum period of follow-up of 24 months (24-120) with a mean of 49 months, the recurrence rate was 7.1% (two patients presented recurrence of procidentia and another prolapse of the rectal mucosa). Anal continence improved in 36 (85.7%) patients. CONCLUSIONS Perineal rectosigmoidectomy combined with levatorplasty is a safe procedure associated with a relatively low morbidity rate, satisfactory functional results, and an acceptably low recurrence rate.
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Does the intraoperative peritoneal lavage cytology add prognostic information in patients with potentially curative gastric resection? J Gastrointest Surg 2006; 10:170-6, discussion 176-7. [PMID: 16455447 DOI: 10.1016/j.gassur.2005.11.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2005] [Accepted: 11/03/2005] [Indexed: 01/31/2023]
Abstract
Peritoneal recurrence is the foremost pattern of failure after potentially curative resection for gastric cancer. Our aim was to evaluate the prognostic value of intraperitoneal free cancer cells (IFCCs) in peritoneal lavage of patients who underwent potentially curative resection for gastric carcinoma. Two hundred twenty patients with gastric cancer stage I, II, or III were prospectively evaluated with peritoneal lavage and cytologic examination. Aspirated fluid from the abdominal cavity was centrifuged and subjected to Papanicolaou staining. The mean age was 60.9 years (range, 21-89 years), and 63.6% were men. IFCCs were detected in 6.8% of the patients; suspicious in 2.7%, and negative in 84.5%. No judgment could be given in 5.9% of the cases. Invasion of the gastric serosa (pT3) was observed in all positive cytology patients. Patients with IFCCs had a mean survival time of 10.5 months, while those with negative IFCC had a mean survival time of 61 months (P = 0.00001). There was no correlation between the presence of IFCCs and tumor size, histology, pN, or tumor site. Our conclusions are that (1) positive cytology indicates a poor prognosis in patients who underwent potentially curative gastric resection and (2) peritoneal lavage cytology improves staging in assessing these patients and may alter their therapeutic approach.
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Laparoscopic versus standard appendectomy outcomes and cost comparisons in the private sector. J Gastrointest Surg 2005; 9:1174-80; discussion 1180-1. [PMID: 16269389 DOI: 10.1016/j.gassur.2005.06.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2005] [Accepted: 06/04/2005] [Indexed: 01/31/2023]
Abstract
Minimally invasive surgery has been proposed as the preferred treatment strategy for various gastrointestinal disorders due to shorter hospital stay, less pain, quicker return to normal activities, and improved cosmesis. However, these advantages may not be straightforward for laparoscopic appendectomy, and optimal management of remains controversial. One hundred forty-eight patients with clinical and radiologic diagnoses of acute appendicitis treated in two different hospitals were retrospectively reviewed. Seventy-eight patients underwent laparoscopic appendectomy in hospital A and 70 patients underwent standard appendectomy in hospital B. Patients treated by either type of surgery were compared in terms of clinical and pathologic features, operation characteristics, complications, and costs. There were no significant differences between both groups in terms of clinical features, radiologic studies, complications, and final pathology findings (P > .05). Hospital stay was significantly shorter and bowel movements recovered quicker in the laparoscopy group. However, overall and operating room costs were significantly higher in patients treated by laparoscopy (P < .01). Our series show a subtle difference in terms of hospital stay and bowel movement recovery, favoring patients treated by laparoscopy. However, these results have to be carefully examined and weighed, because overall costs and operating room costs were significantly higher in the laparoscopy group.
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Complications of gastrectomy with lymphadenectomy in gastric cancer. Gastric Cancer 2005; 7:254-9. [PMID: 15616774 DOI: 10.1007/s10120-004-0301-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2004] [Accepted: 08/20/2004] [Indexed: 02/07/2023]
Abstract
BACKGROUND Currently, gastrectomy and extended lymphadenectomy (LN) is the treatment of choice for gastric cancer. Although a survival rate benefit of D2 LN compared to D1 LN has been shown, the D2 LN procedure is not fully employed, due to possible higher morbidity and mortality rates. These higher rates are being questioned in more recent series, in which D1 and D2 LN complication rates have been similar. The aim of this study was to analyze the immediate postoperative complications of patients submitted to total or subtotal gastrectomy with D1 or D2 LN (according to the Japanese guidelines for gastric cancer) at the Gastrointestinal Surgery Division of the Medical School of São Paulo University, between January 2001 and April 2003. METHODS One hundred consecutive patients were studied; 61 were men and 39, women. Total gastrectomy was performed in 52 patients (13 with D1 LN and 39 with D2 LN), and subtotal gastrectomy was performed in 48 (11 with D1 LN and 37 with D2 LN). Total or subtotal gastrectomy with D1 or D2 LN was performed according to the tumor extent and histological classification (Lauren's diffuse or intestinal type), considering the patient's general condition and the gastric cancer stage. Roux-en-Y reconstruction was performed in almost all patients. RESULTS No difference was observed regarding complications and mortality related to the extent of the gastrectomy. Although morbidity was higher in the D1 group, no significant difference was observed. Mortality was higher in the D1 group, and this was probably related to their poor surgical condition and more advanced tumors. CONCLUSION According to these results, it appears that total or subtotal gastrectomy with D2 LN in gastric cancer treatment, performed according to the Japanese guidelines, can be considered a safe procedure, with acceptable morbidity and mortality, when performed by a trained surgical team.
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Abstract
This study measures the anatomical dimensions of the path to the petrous apex (PA) via the infralabyrinthine approach in temporal bones of adult Indian subjects, and studies the anatomical variation encountered in this approach. Forty-two temporal bones were dissected to gain access to the PA via the infralabyrinthine approach. The horizontal and vertical dimensions of the access window created as well as the length of the track to the PA from the vertical portion of facial nerve were measured with two-point calipers. Complete dissection was possible in only 21 bones (50%). In the remainder, after preliminary cortical mastoidectomy, an access window to the PA could not be created due to a high jugular bulb. The mean dimensions of the window in dissected bones were 4.60 mm vertically (SD = 0.94 mm) and 6.45 mm (SD = 1.44 mm) horizontally, and the depth of the track to the PA was 30.26 mm (SD = 3.62 mm). The infralabyrinthine approach to the PA provides wide access to lesions of the posterior and inferior PA. In up to 50% of temporal bones, as evidenced by this series, access may be limited by a high jugular bulb. The possibility of this anatomical variation should be considered when the surgical approach to a PA lesion via the infralabyrinthine approach is being planned.
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Abstract
UNLABELLED Recently, the presence of microsatellite instability (MSI) has been reported in gastric cancer and associated with older age of presentation, distal tumor location, early disease staging, and better overall prognosis. Different characteristics in presentation and in tumor behavior may be explained by different genetic alterations during carcinogenesis of gastric cancer. Identification of specific genetic pathways in gastric cancer may have direct impact on prognosis and selection of treatment strategies. PATIENTS AND METHODS All 24 patients were treated by radical surgery. Fragments of normal and tumor tissues were extracted from the specimen and stored at -80 degrees C before DNA purification and extraction. PCR amplification utilizing microsatellite markers was performed. Tumors presenting PCR products of abnormal sizes were considered positive for microsatellite instability (MSI+). RESULTS Five patients (21%) had tumors that were MSI+ in at least 1 marker. In the group of patients with Lauren's intestinal-type gastric carcinoma, 3 had tumors that were MSI+ (23%), while in the group of diffuse-type gastric cancer, 2 patients had tumors that were MSI+ (19%). The mean age of presentation and the male:female ratio was similar in both groups. Tumors that were MSI+ were more frequently located in proximal portion of the stomach compared to microsatellite-stable (MSS) tumors (40% vs. 16%). Although there was a trend of patients with MSI+ tumors towards a proximal gastric tumor location, early staging, and negative lymph node metastasis, there was no statistical significance compared to those with MSS tumors (P >.1). Comparison of overall and disease-free survival between gastric tumors that were MSI+ and those that were MSS found no statistically significant differences (P >.1). CONCLUSIONS Microsatellite instability is a frequent event in gastric carcinogenesis and shows a trend towards distinct clinical and pathological characteristics of gastric cancer.
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Abstract
Historicamente, as operações sobre o intestino grosso sempre foram cercadas por cuidados especiais, com o intuito de minimizar o potencial de complicações. Com isso, a realimentação oral era postergada. Este trabalho teve como objetivo documentar a retirada da sonda nasogástrica logo após o procedimento cirúrgico e a adoção da realimentação precoce. Foram acompanhados 105 pacientes submetidos a operações colorretais eletivas por via de acesso convencional. A média de idade foi de 59,9 anos com predomínio do sexo masculino. Oitenta e cinco doentes foram operados por afecção maligna. A operação mais realizada foi a retossigmoidectomia com anastomose colorretal. Água era permitida logo após o despertar do paciente, e dieta líquida era liberada no dia seguinte e feita a progressão conforme a aceitação, independentemente da presença de ruídos hidroaéreos ou eliminação de flatos. Em 14 pacientes (13,3%), interrompeu-se a dieta devido a ocorrência de náuseas ou vômitos. A mortalidade foi nula. Ocorreram complicações em 15 doentes (14,3%). Na série estudada, a retirada imediata da sondanasogástrica e realimentação precoce foi prática segura e bem tolerada pela maioria dos pacientes.
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