CIR - Artigos publicados em revistas indexadas
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- Primary hyperparathyroidism with severe bone disease: osteitis fibrosa cystica vs. fibrous dysplasia. case report and review of the literaturePublication . Leitão, MJ; Cuña, L; Pinheiro, N; Coelho, V; Oliveira, M; Araújo, JMPrimary hyperparathyroidism _HPT. is associated with generalized skeletal changes, its full-blown osseous manifestations known as osteitis fibrosa cystica. Fibrous dysplasia _FD., a benign bone disorder, is differentiated from generalized fibrocystic disease caused by hyperparathyroidism. The classic triad of McCune–Albright syndrome includes polyostotic FD, patchy skin pigmentation, and sexual precocity. Other associated endocrinopathies are hyperthyroidism, Cushing’s syndrome, acromegaly, and HPT. We describe a patient with severe generalized and focal bone lesions and sexual precocity. HPT was diagnosed and treated with persistence of cystic bone lesions. The similarities between HPT and FD are discussed, focusing on a possible genetically determined mechanism to explain the relationship between them.
- Hepatic abscess induced by foreign body: case report and literature reviewPublication . Santos, S; Alberto, S; Cruz, E; Pires, E; Figueira, T; Coimbra, E; Estevez, J; Oliveira, M; Novais, L; Deus, JRHepatic abscess due to perforation of the gastrointestinal tract caused by ingested foreign bodies is uncommon. Pre-operative diagnosis is diffi cult as patients are often unaware of the foreign body ingestion and symptoms and imagiology are usually non-specific. The authors report a case of 62-year-old woman who was admitted with fever and abdominal pain. Further investigation revealed hepatic abscess, without resolution despite antibiotic therapy. A liver abscess resulting from perforation and intra-hepatic migration of a bone coming from the pilorum was diagnosed by surgery. The literature concerning foreign body-induced perforation of the gastrointestinal tract complicated by liver abscess is reviewed.
- Hematoma intramural espontáneo no traumático del intestino delgado: una complicación poco habitual de los anticoagulantesPublication . Alberto, S; Sánchez, P; Félix, J; Deus, JREl hematoma intramural del intestino delgado es una complicación poco habitual de la utilización de anticoagulantes orales. El diagnóstico sólo es posible cuando se asocian estos síntomas a una historia clínica de anticoagulación oral y pruebas radiológicas. A continuación se presenta el caso clínico de un paciente que ingreso por dolor epigástrico asociado a vómitos de retención con 48 h de evolución y antecedentes de anticoagulación oral con warfarina. La ecografía y la tomografía computarizada abdominal mostraban un asa yeyunal con espesamiento parietal difuso, indicativo de hematoma intramural. Se realizó tratamiento conservador, con regresión sintomática al segundo día y reabsorción del hematoma intramural del yeyuno. Se reintrodujo tratamiento anticoagulante, sin nueva recidiva.
- Tumores oncocíticos da supra-renalPublication . Capela, A; Martinho, A; Duarte, F; Garcia, H; Pires, F; Manso, RT; Aparício, S; Costa, ARESUMO Os tumores oncocíticos da supra-renal são neoplasias pouco frequentes. Atualmente existem 147 casos publicados. Os autores descrevem o caso de um homem de 34 anos admitido no hospital por lombalgias e febre. À observação identificava-se massa no quadrante superior esquerdo do abdomen. Os doseamentos das hormonas da supra-renal foram normais e a angiotomografia abdominal mostrou lesão retroperitoneal esquerda com 145 x 157 x 128 mm com extensas áreas necrosadas e hemorrágicas. O doente foi submetido a ressecção cirúrgica completa da lesão. O tumor pesava 1495 g e o exame anatomo-patológico concluiu tratar-se de tumor oncocítico da supra-renal com potencial maligno incerto. A maioria dos tumores oncocíticos é não funcionante e devem ser considerados no diagnóstico diferencial de tumores do córtex da supra-renal. O comportamento biológico e o seu prognóstico são variáveis e ainda estão mal estabelecidos. A propósito da raridade deste tipo de tumores os autores fazem uma revisão da bibliografia publicada
- Adult intussusception: a single-center 10-year experiencePublication . Gomes, A; Sousa, M; Pignatelli, N; Nunes, VBackground Adult intussusception (AI) is a rare condition, usually with a lead point, and for which surgery is the treatment of choice. Given the risks and possible complications of untreated AI, an accurate preoperative diagnosis is of the utmost importance. Although AI remains difficult to diagnose, computerized tomography (CT) is presently considered the best diagnostic tool. Methods Sixteen patients of 20 years and older with intraoperative diagnosis of intussusception, who underwent surgery between January 2000 and December 2009, were reviewed retrospectively. Patients were assessed concerning clinical presentation, imagiological findings, surgical treatment, and postoperative histological evaluation. Results Most patients (93.8 %) were admitted via emergency room (ER) due to abdominal pain. Fourteen (87.5 %) AI cases showed an underlying organic cause, e.g., masses or tumors. The most frequent comorbidities were Peutz–Jeghers syndrome (PJS; 18.8 %) and HIV (12.5 %). Eight (50.0 %) intussusceptions were ileocolic and six (37.5 %) were in the small bowel. Total 43.8 % of lesions were malignant. Preoperative diagnosis of intussusception was possible in 50.0 % of cases by ultrasonography (US) and in 81.8 % by CT. US showed no predictive value concerning intussusception location. Total 27.3 % of CTs correctly identified the location, but only 9 % accurately identified the lead point. Conclusions We propose that all AI cases should be treated with surgical resection without attempting reduction, even when no lead point is detected by imaging studies, and this approach should be based on the oncological criteria. CT can be regarded as the most accurate diagnostic tool for intussusception, although its predictive value concerning location and lead point is still far from ideal.
- Imaging Screening of Catastrophic Neurological Events Using a Software Tool: Preliminary ResultsPublication . Fernandes, AP; Gomes, A; Veiga, J; Ermida, D; Vardasca, TBACKGROUND: In Portugal, as in most countries, the most frequent organ donors are brain-dead donors. To answer the increasing need for transplants, donation programs have been implemented. The goal is to recognize virtually all the possible and potential brain-dead donors admitted to hospitals. The aim of this work was to describe preliminary results of a software application designed to identify devastating neurological injury victims who may progress to brain death and can be possible organ donors. METHODS: This was an observational, longitudinal study with retrospective data collection. The software application is an automatic algorithm based on natural language processing for selected keywords/expressions present in the cranio-encephalic computerized tomography (CE CT) scan reports to identify catastrophic neurological situations, with e-mail notification to the Transplant Coordinator (TC). The first 7 months of this application were analyzed and compared with the standard clinical evaluation methodology. RESULTS: The imaging identification tool showed a sensitivity of 77% and a specificity of 66%; predictive positive value (PPV) was 0.8 and predictive negative value (PNV) was 0.7 for the identification of catastrophic neurological events. CONCLUSION: The methodology proposed in this work seems promising in improving the screening efficiency of critical neurological events.
- Colorectal surgical mortality and morbidity in elderly patients: comparison of POSSUM, P-POSSUM, CR-POSSUM, and CR-BHOMPublication . Gomes, A; Rocha, R; Marinho, R; Sousa, M; Pignatelli, N; Carneiro, C; Nunes, VPURPOSE: This study aims to compare the predictive value of POSSUM, P-POSSUM, CR-POSSUM and CR-BHOM in colorectal surgical mortality and morbidity in patients over 80 years old. METHODS: This is a retrospective observational longitudinal study. A total of 991 patients who underwent major colorectal surgery between 2008 and 2012 in a secondary hospital in Portugal were screened, and 204 who were over 80 years old were included. Subgroup analysis was performed for malignant/benign disease and emergent/elective surgery. The main outcome measure was 30-day postoperative mortality and morbidity with Clavien-Dindo classification ≥ 2. RESULTS: Of the 204 patients included in this study, 155 had malignant disease, and 65 underwent emergent procedures. Overall average age was 84.3 ± 3.9 years (range 80-100). Overall surgical mortality and morbidity were 18.6% (n = 38) and 52.4% (n = 87), respectively. Expected mortality followed the order P-POSSUM
- Management of brain-dead donors outside the intensive care unit: a necessary recoursePublication . Gomes, A; Rocha, R; Fernandes, A; Fernandes, AP
- High-risk features in potentially resectable colon cancer: a prospective MDCT-pathology agreement studyPublication . Santiago, I; Rodrigues, E; Germano, A; Costa, A; Manso, RT; Gomes, A; Leichsenring, C; Geraldes, VNeoadjuvant chemotherapy in potentially resectable high-risk Stage II and Stage III colon cancer has demonstrated promising results in the PRODIGE 22-ECKINOXE Phase II trial. Identification of adverse morphologic features, namely T3 with >5 mm extramural extension/T4 stages and/or N2, is fundamental and requires accurate noninvasive imaging. Our aim was to assess the value of optimized preoperative MDCT to stratify potentially resectable colon cancer patients for neoadjuvant therapy. METHODS: this is an observational prospective cross-sectional radiologic-pathologic agreement study. All patients with colon cancer referred to our Institution's Radiology department for preoperative MDCT staging between 01-10-2013 and 11-02-2015 underwent independent reading based on axial and multiplanar reconstruction images by 3 radiologists with 3, 6, and 20 years of experience in gastrointestinal radiology. T stage, extramural extension if T3 (≤5 mm or >5 mm), and N stage were recorded. Surgical specimens subsequently obtained underwent micro-pathologic analysis by a gastrointestinal pathologist with 9 years of experience in gastrointestinal pathology. Main outcome measures were sensitivity, specificity, PPV, NPV, AUROC, diagnostic accuracy, and interobserver agreement of optimized MDCT, and pathologic analysis of the surgical specimen considered the reference standard. RESULTS: 74 patients [43 males; median age 73 (45-89)] were eligible. MDCT sensitivity, specificity, PPV, NPV, AUROC, and diagnostic accuracy ranged between 42.9-76.2, 75.5-90.6, 55.2-76.2, 80.0-90.6, 0.67-0.83 and 0.76-0.86%, respectively, for the identification of T3 > 5 mm/T4 disease, with moderate interobserver agreement (0.49); and 8.3-33.3, 93.5-98.4, 20-66.7, 84.1-88.2, 0.51-0.65 and 0.80-0.86%, respectively, for the identification of N2 disease, with absent interobserver agreement (0.10). CONCLUSIONS: Specificity of MDCT in the stratification of patients for neoadjuvant therapy may be high enough to prevent overtreatment. However, it may lead to undertreatment in a meaningful proportion of patients. Observer performance may benefit from targeted training programs, given the variability and observer dependence of the results. Limitations include 4-slice MDCT equipment, time to surgery and lack of long-term outcome information based on imaging parameters per se.
- Impact of bowel resection margins in node negative colon cancer.Publication . Rocha, R; Marinho, R; Aparício, D; Fragoso, M; Sousa, M; Gomes, A; Leichsenring, C; Carneiro, C; Geraldes, V; Nunes, VSurgical intestinal resection margins in colon cancer are a longstanding debate in terms the optimal distance between the tumor and the colonic section line. The aim of this study is to define the oncological outcomes in relation to surgical margins, measured in terms or recurrence rate, time-to-recurrence, disease-free survival and overall survival in a population of node negative colon cancer patients. METHODS: We conducted a retrospective observational longitudinal single institution study. All patients submitted to colon cancer surgery between January 2006 and December 2010 were analyzed. Only node negative patients were included in the study, with analysis of 215 patient charts, divided in two groups (Intestinal margin lower than 5 cm-group 1; and 5 cm or higher-group 2). RESULTS: Mean age of patients was 70.4 years (±11.7), with a male predominance (57.7%). Group 2 more frequently corresponded to Stage II (83 vs 71%; p = 0.05). Global mean total lymph nodes harvested were 12, and were higher in group II than in group I (13.8 ± 8.2 vs 10.4 ± 5.7; p = 0.001). In terms of time-to-recurrence patients of group 2 had longer time than patients of group 1 (32.3 ± 12.1 vs 21.8 ± 13.8 months; p = 0.03), as well as a lower recurrence rate in group I (13.7 vs 17.2%), despite not statistically significant. CONCLUSIONS: This study has showed that patients with 5 cm or higher bowel resection margins had longer time-to-recurrence that was statistically significant. Recurrence rates were lower in the group of patients with longer surgical margins, however not statistically significant.