Sergio Renato Pais-Costa

Adenocarcinoma da vesícula biliar: avaliação dos fatores prognósticos em 100 casos ressecados no Brasil

BACKGROUND: In spite its relative rarity, gallbladder adenocarcinoma is a neoplasm who presents an aggressive biologic behavior. The single curative treatment has been radical surgical resection with free margin. Prognostic factors has been studied because are very important to identify long-term survival patients which may benefit of aggressive surgical resection. AIM: To evaluate long-term prognostic predictors from gallbladder cancer. METHODS: The medical records of all patients that presented confirmed histological diagnosis of gallbladder adenocarcinoma operated over a 14 year period were identified and retrospectively reviewed. Uni and multivariate analysis was done. RESULTS: Total sample was 100 patients. Median age was 71 years (34 to 93). There were 17 men and 83 women. Lesion distribution according to TNM stage system was: I (n=22), II (n=59), III (n=6), IV (n=4) and unknown (n=9). Fifty two patients underwent radical resection (R0) while 48 to palliative surgery (R1-R2). Overall major morbidity was 14%, while postoperative surgical mortality rate (30th postoperative day) was 12 %. Five-year survival rate was 28% while median of survival was 10 months. Multivariate analysis identified six prognostic factors: T stage, serum level of CA 19.9, gallbladder perforation, lymphatic embolization, surgical historical cohort (after 2002) and hilar lymphadenectomy. CONCLUSION: Prognostic factors were: T stage, serum level of CA 19.9, gallbladder perforation, lymphatic embolization, surgical historical cohort and hilar lymphadenectomy.

Evaluation of P53, E-cadherin, Cox-2, and EGFR protein imunnoexpression on prognostic of resected gallbladder carcinoma

Background Gallbladder carcinoma presents a dismal prognosis. Choice treatment is surgical resection that is associated a high levels of both morbidity and mortality. Best knowledgement of prognostic factors may result a better selection of patients either for surgical or multimodal treatment. Aim To evaluate tecidual immunoexpression of P53, E-cadherin, Cox-2, and EGFR proteins and to correlate these findings with resected gallbladder adenocarcinoma survival. Methods Clinical, laboratorial, surgical, and anatomopathological reports of a series of gallbladder adenocarcinoma patients were collected by individualized questionary. Total sample was 42 patients. Median of age was 72 years (35-87). There were seven men and 35 women. Lesion distribuition in according TNM state was the following: T1 (n=2), T2 (n=5), T3 (n=31), T4 (n=4). Twenty-three patients underwent radical resection (R0), while 19 palliative surgery (R1-R2). A block of tissue microarray with neoplasic tissue of each patient was confected. It was performed evaluation of P53, E-Caderine, COX-2, and EGFR proteins imunoexpression. These findings were correlated with overall survival. Results Five-year survival was 28%. The median of global survival was eight months. Only immunoexpression of EGFR protein was considered independent variable at multivariated analysis. Conclusion Final prognosis was influenced by over-expression of EGFR protein in tumoral tissue.

Giant hepatic adenoma associated with anabolic-androgenic steroid abuse: case report

Hepatic adenoma (HA) is an uncommon primary benign neoplasm of hepatocellular origin that most frequently affects young women. It has generally been associated with use of oral contraceptives. Glycogen storage disease has also been associated with development of HA and in such cases, it is also more likely to be multiple and to undergo malignant transformation. HA may be also found in association with other conditions such as diabetes mellitus, pregnancy, Fanconi anemia, Hurler disease, familial adenomatous polyposis and tyrosinemia3,5,6,9,13. More rarely, HA has been associated with abusive use of anabolic-androgenic steroids (AAS), mainly among bodybuilders 8,11,12. Most of these tumors are detected incidentally by means of imaging examinations such as ultrasound or other scanning techniques. Others because of hepatomegaly, right upper quadrant discomfort, pain, compression of neighboring organs, or intraperitoneal hemorrhage. The diagnosis is sometimes established only during intraoperative exploration3,5,6,9,13. Tumor rupture is frequently observed in bulky tumors, and this occurrence presents high mortality9,13. HA has also been associated with malignant transformation. This association has also been observed in large tumors6,9. The preferred treatment is surgical resection by means of guided hepatectomy or enucleation. This is the approach of choice for symptomatic patients or even for large tumors > 5 cm13. Today, the laparoscopic approach has become the gold standard because it provides low morbidity, fast recovery and cosmetic advantages1,4,7. However, for treating large lesions, especially when they are close to major vascular structures, an open approach is safer4,7.

Extrahepatic biliary cystadenocarcinoma mimicking Klatskin tumor

Cistadenocarcinoma biliar (BCAC) é uma rara neoplasia maligna cística. Alguns autores pensam ser ela a conversão de cistoadenoma biliar de longa evolução. Na maioria dos casos ocorre no parênquima (cistadenocarcinoma intra-hepático); por vezes, pode ser observado com origem biliar extrahepática3,4,6,7,8,10,11. Cistadenocarcinoma biliar extrahepático (EBCAC) geralmente conduz icterícia associada com massa palpável1,2,5,6,9. No passado o diagnóstico era feito por meio de colangiopancreatografia retrógrada endoscópica. No entanto, tomografia computadorizada ou ressonância magnética ainda são preferidos por serem não invasivos1,2,3,4,5,6,7,8,9,10. Às vezes, EBCAC tem dificuldades no diagnóstico diferencial com colangiocarcinoma, principalmente quando ocorre no hilo hepático.6 O tratamento cirúrgico proporciona bom prognóstico; no entanto, ressecção em bloco do trato biliar com hepatectomia pode ser necessária para obter margens livres3,6,10. Até o momento não foi encontrado qualquer caso relatado no Brasil, nem operação bem sucedida usando ressecção biliar em bloco com hepatectomia para tratá-lo.

Successful surgical management of an extrahepatic biliary cystadenocarcinoma

Extrahepatic bile duct cancer is an uncommon disease, and few cases are curable by surgery. We report a case of extrahepatic biliary cystadenocarcinoma (BCAC) associated with atrophy of the left hepatic lobe. A 54-year old male was admitted with painless obstructive jaundice and a hepatic palpable mass noticed one month before presentation. Liver functions tests were consistent with cholestatic damage and serum carbohydrate antigen 19.9 (CA 19-9) was increased before treatment. Magnetic resonance imaging (MRI) disclosed dilatation of the left hepatic bile duct with irregular wall thickening close to the hepatic confluence, and atrophy of left hepatic lobe. The patient was submitted to en bloc extended left hepatectomy with resection of caudate lobe, hilar lymphadenectomy, and suprapancreatic biliary tree resection. All surgical margins were grossly negative, and postoperative course was uneventful, except for a minor bile leak. The patient was discharged on the 15th postoperative day; he is alive without tumor recurrence one year after primary therapy. Although technically challenging, extended en bloc resection is feasible in adults with extrahepatic BCAC and can improve survival with acceptable and manageable morbidity.

Laparoscopic hepatectomy for benign hepatic lesions: short and long-term outcomes including quality-of-life evaluation

Aim: Even though laparoscopic hepatectomy (LH) has proved to be both safe and effective in specialized centers; the restricted indications for resection in the case of benign liver lesions has resulted in poorly reported outcomes. Our aim was to describe the short and long-term results of LH to treat benign hepatic lesions, including quality of life (QoL) evaluation. Methods: Thirty-one LHs were performed between 2007 and 2018 in 30 patients. We evaluated QoL with the SF-36 test and a body image satisfaction questionnaire by personal interview before surgical treatment and at 1 month, 3 months, 6 months and 1 year after surgery. Results: Median age was 38 years (range 21-71) and the majority were females (68%). The most frequent etiology was hepatic adenoma in 16 patients (52%), followed by focal nodular hyperplasia (n = 4), cavernous hemangioma (n = 3), hepatic abscess (n = 3), cystadenoma (n = 5) and hepatolithiasis (n = 1). The majority of resections were minor (66%) and the conversion rate was 6.2%. Pathological examination confirmed negative margins in all patients. Postoperative mortality was nil, while morbidity was 6.2%. Median hospital stay was 4 days (range 1-32 days). In a median follow-up of 48 months (range 2-120), 2 patients experienced recurrence. QoL variables were similar between the preoperative and postoperative periods. Conclusion: LH should be considered the main therapeutic approach for treating selected patients with benign liver lesions who require surgical resection because it presented both null mortality and low morbidity, along with rare recurrence, a good quality of life and high esthetic satisfaction.

HEPATECTOMY FOR PYOGENIC LIVER ABSCESS TREATMENT: EXCEPTION APPROACH?

ABSTRACT Background: Percutaneous drainage for pyogenic liver abscess has been considered the gold-standard approach for the treatment on almost of the cases. However, when percutaneous drainage fails or even in some especial situations, as multiloculate abscess, lobe or segment surgical resection can solve infectious clinical condition. Aim: To report a series of patients who underwent hepatectomy for pyogenic liver abscess performed by a single surgical team. Methods: Eleven patients were operated with ages ranging from 45-73 years (mean and median 66 years). There were eight men and three women. The etiologies were: idiopathic (n=4), biliary (n=2), radiofrequency (n=2), direct extension (n=1), portal (n=1), and arterial (n=1). The mean lesion diameter was 9.27 cm (6-20 cm). Results: The mean operation length was 180 min (120-300). The mean intra-operative blood loss was 448 ml (50-1500). Surgical approaches were: right hepatectomy (n=4), left hepatectomy (n=3), left lateral sectioniectomy (n=1), right posterior sectioniectomy (n=2), resection of S8 (n=1), and S1 (n=1). Postoperative morbidity rate was 30%, while mortality was null. Median hospital stay was 18 days (5-45). The median follow-up period was 49 months (13-78). There was single lesion recurrence. Conclusion: Hepatectomy can be done as exception approach for pyogenic hepatic abscess treatment; it is a good therapeutic option in special situations.

LAPAROSCOPIC DISTAL PANCREATECTOMY WITH SPLEEN PRESERVATION

ABSTRACT Background: Laparoscopic distal pancreatectomy has been the choice for resection of distal pancreas lesions due many advantages over open approach. Spleen preservation technique seems minimizes infectious complications in long-term outcome. Aim: To present the results of laparoscopic distal pancreatectomies with spleen preservation by Kimura´s technique (preservation of spleen blood vessels) performed by single surgical team. Methods: Retrospective case series aiming to evaluate both short and long-term outcomes of laparoscopic distal pancreatectomies with spleen preservation. Results: A total of 54 laparoscopic distal pancreatectomies were performed, in which 26 were laparoscopic distal pancreatectomies with spleen preservation by Kimura´s technique. Mean age was 47.9 years-old (21-75) where 61.5% were female. Mean BMI was 28.5 kg/m² (18-38.8). Mean diameter of lesion was 4.3 cm (1.8-7.5). Mean operative time was 144.1 min (90-200). Intraoperative bleeding was 119.2 ml (50-600). Conversion to laparotomy 3% (n=1). Postoperative morbidity was 11.5%. Postoperative mortality was null. Mean of hospital stay was 4.8 days (2-14). Mean time of follow-up period was 19.7 months (2-60). There was no neoplasm recurrence or mortality on evaluated period. There was no infectious complication. Conclusion: Laparoscopic distal pancreatectomy with spleen and splenic vessels preservation is feasible, safe, and effective procedure. This technique presented both low morbidity and null mortality on this sample. There were neither infectious complications nor neoplasm recurrence on long-term follow-up period.

CRITICAL EVALUATION OF LONG-TERM RESULTS OF MALIGNANT HEPATIC TUMORS TREATED BY MEANS CURATIVE LAPAROSCOPIC HEPATECTOMY

ABSTRACT Background: Laparoscopic hepatectomy has presented great importance for treating malignant hepatic lesions. Aim: To evaluate its impact in relation to overall survival or disease free of the patients operated due different hepatic malignant tumors. Methods: Thirty-four laparoscopic hepatectomies were performed in 31 patients with malignant neoplasm. Patients were distributed as: Group 1 - colorectal metastases (n=14); Group 2 - hepatocellular carcinoma (n=8); and Group 3 - non-colorectal metastases and intrahepatic cholangiocarcinoma (n=9). The conversion rate, morbidity, mortality and tumor recurrence were also evaluated. Results: Conversion to open surgery was 6%; morbidity 22%; postoperative mortality 3%. There was tumor recurrence in 11 cases. Medians of overall survival and disease free survival were respectively 60 and 46 m; however, there was no difference among studied groups (p>0,05). Conclusion: Long-term outcomes of laparoscopic hepatectomy for treating hepatic malignant tumors are satisfactory. There is no statistical difference in relation of both overall and disease free survival among different groups of hepatic neoplasms.

Laparoscopic left lateral segmentectomy for metachronic metastases of small intestine adenocarcinoma: a case report

Hepatectomy has been the standard treatment for metachronic metastases of non-colorectal (NCR) origin, mainly when the disease-free interval is more than two years. Laparoscopic hepatectomy has become the golden standard mainly for left side resections, due to lower morbidity, shorter hospital stay, early recovery and good cosmetic outcome. The authors report the case of a female patient with two metachronic metastases (ten years of disease-free survival), of non-colorectal origin (adenocarcinoma of small intestine), treated by laparoscopic left lateral segmentectomy (left hepatic lobectomy) with success. The postoperative progress was satisfactory. To date, the patient has presented no tumoral recurrence (six months of follow-up period). Laparoscopic left lateral segmentectomy can be satisfactorily performed in selected cases of hepatic metastasis. This approach presents low morbidity and good cosmetic result. The lack of alternative treatments and the poor prognosis of untreated cases have justified surgical resection in order to increase overall survival. Nevertheless, this approach should be performed by hepatic surgery expertise teams trained on advanced laparoscopic procedures.