RESUMO
AIM: Preoperative chemoradiation (CRT) for rectal cancer decreases the number of examined lymph nodes (NELN) found in the resected specimen. However, the prognostic role of lymph node evaluation including overall numbers and the lymph node ratio (LNR) in patients having preoperative CRT have not yet been defined. The study has assessed the influence of CRT on the NELN and on lymph node number and LNR on the survival of patients with rectal cancer. METHOD: Between 2003 and 2011, 508 patients with nonmetastatic rectal cancer underwent mesorectal excision. Of these 123 (24.2%) received preoperative CRT. Univariate and multivariate analysis was performed to define the role of NELN and LNR as prognostic indicators of survival. RESULTS: Neoadjuvant CRT significantly reduced the NELN (P < 0.0001). Disease-free survival (DFS) and overall survival (OS) of patients with fewer or more than 12 nodes retrieved did not differ statistically. Node-negative patients with six or fewer lymph nodes were significantly associated with a poor DFS and OS on univariate analysis (P = 0.03 and P = 0.03). LNR significantly influenced the DFS and OS on multivariate analysis [DFS, P = 0.0473, hazard ratio (HR) 2.4980, 95% confidence interval (CI) 1.2631-9.4097; OS, P = 0.0419, HR 1.1820, 95% CI 1.1812-10,710]. CONCLUSION: The cut-off of 12 lymph nodes does not influence survival and should not be considered for cancer-specific prediction of patients having neoadjuvant CRT. In contrast LNR is an independent prognostic predictor of DFS and OS in such patients.
Assuntos
Carcinoma/terapia , Quimiorradioterapia Adjuvante/métodos , Excisão de Linfonodo/métodos , Linfonodos/patologia , Neoplasias Retais/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma/mortalidade , Carcinoma/patologia , Intervalo Livre de Doença , Feminino , Humanos , Linfonodos/cirurgia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Modelos de Riscos Proporcionais , Neoplasias Retais/mortalidade , Neoplasias Retais/patologia , Fatores de TempoRESUMO
AIM: Pancreatic fistula (PF) represents the main complication (10%-29%) after pancreatic surgery. Soft pancreatic texture with a not dilated pancreatic duct represent the major risk factors for PF. Mortality after pancreaticoduodenectomy (PD) is reported in several large series to be <5%. PF and local sepsis are the main causes of delayed arterial hemorrage with a high mortality rate (14-38%). Therefore, any effort should be implemented in order to reduce the incidence of PF. METHODS: In the present study we have extended the use of the biological adhesive Bioglue® to coat pancreatic resection surface after distal pancreasectomy (DP, N.=5) and pancreatico-jejunostomy (PJ) after PD (N.=18) in a RESULTS: Operative mortality was observed in 2 instances: one case after PJ leakage (1/18, 5.5%) and one case after DP not related to PF (1/5, 20%). PF has been documented in 7/23 (30,4%) after pancreatic resection, and in all cases after PD. In 3 cases PF has been successfully treated conservatively by NPO and octreotide. 2 patients required radiological percutaneous transhepatic biliary drainage and 2 patients required surgical drainage of multiple intrabdominal collections and radiological PTBD. CONCLUSION: On the basis of these observations Bioglue® can be safely utilized to coat pancreatic surface after DP and pancreatico-jejunostomy after PD. This experience warrants further larger controlled studies of the potential value of Bioglue® in reducing the incidence of PF after major pancreatic surgery.
Assuntos
Pancreatectomia/efeitos adversos , Fístula Pancreática/etiologia , Fístula Pancreática/prevenção & controle , Proteínas , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/cirurgiaRESUMO
Nanostructured cubic zirconia is a strategic material for biomedical applications since it combines superior structural and optical properties with a nanoscale morphology able to control cell adhesion and proliferation. We produced nanostructured cubic zirconia thin films at room temperature by supersonic cluster beam deposition of nanoparticles produced in the gas phase. Precise control of film roughness at the nanoscale is obtained by operating in a ballistic deposition regime. This allows one to study the influence of nanoroughness on cell adhesion, while keeping the surface chemistry constant. We evaluated cell adhesion on nanostructured zirconia with an osteoblast-like cell line using confocal laser scanning microscopy for detailed morphological and cytoskeleton studies. We demonstrated that the organization of cytoskeleton and focal adhesion formation can be controlled by varying the evolution of surface nanoroughness.
Assuntos
Materiais Biocompatíveis/química , Adesão Celular , Nanoestruturas/química , Nanoestruturas/ultraestrutura , Osteoblastos/citologia , Zircônio/química , Linhagem Celular Tumoral , Proliferação de Células , Sobrevivência Celular , Humanos , Propriedades de SuperfícieRESUMO
The mechanism and formation of cancer have always been topics of interest for scientists, even for doctors in ancient times. Nowadays a great role for cancer is played by psychological stress which promotes relevant changes in neuronal activity and gene regulations across the different brain areas. It has been reported by many authors that stress can have an important role in the immune system and may be relevant in the formation of cancer. Our observations, in accordance with other research studies, confirm the importance of the influence of depression, linked to neuroendocrine stress, on the enhancement of cancer pathogenesis by inhibiting anti-tumor immune responses. In this article we review the past and present history of the relationship between cancer and psychology.
Assuntos
Encéfalo , Depressão , Neoplasias , Sistemas Neurossecretores , Estresse Psicológico , Encéfalo/imunologia , Encéfalo/fisiopatologia , Depressão/imunologia , Depressão/fisiopatologia , Depressão/psicologia , Humanos , Neoplasias/imunologia , Neoplasias/fisiopatologia , Neoplasias/psicologia , Sistemas Neurossecretores/imunologia , Sistemas Neurossecretores/fisiopatologia , Estresse Psicológico/fisiopatologia , Estresse Psicológico/psicologiaRESUMO
The most frequent cause of treatment failure following surgery for gastric cancer is peritoneal metastasis. The ability to predict the likelihood of peritoneal recurrence should improve the therapeutic approach to gastric cancer. Cytological analysis of peritoneal washings is thought to be useful for direct detection of free cancer cells in the peritoneal cavity. Intraperitoneal free cancer cells (IFCC) isolated during peritoneal washing in patients with gastric cancer, have been demonstrated to be significantly and independently related to the prognosis, influencing both early recurrence and poor survival, so that since 1998 the Japanese Classification of Gastric Carcinoma (JCGC) recommend peritoneal wash cytology (PWC) for the local staging. In Western countries PWC is not uniform practice, because of several controversies regarding the low sensitivity rate of conventional cytology, the correct application of molecular diagnosis (immunostaining and RT_PCR) and the exact role of PWC in the clinical practice. The authors examine the current apply of peritoneal washing in gastric cancer, emphasizing the clinical implication of peritoneal cytology by analyzing the different modality and techniques to perform it (conventional cytology, immunocytochemistry, RT-PCR), when to achieve it during the diagnostic or clinical work-up (at the staging or during the surgical treatment), and who will get a benefit (all patients or selected patients).
Assuntos
Carcinoma/secundário , Cavidade Peritoneal/patologia , Lavagem Peritoneal , Neoplasias Peritoneais/secundário , Neoplasias Gástricas/patologia , Carcinoma/diagnóstico , Gastrectomia , Humanos , Metástase Linfática , Células Neoplásicas Circulantes , Neoplasias Peritoneais/diagnóstico , Valor Preditivo dos Testes , Sensibilidade e Especificidade , Neoplasias Gástricas/cirurgiaRESUMO
AIM: The literature continues reporting a high complication rate for carotid artery stenting (CAS) during the learning-curve phase (LCP). The aim of this study was to report a simple and reproducible method designed to improve CAS results during the LCP. METHODS: Between February 2007 and December 2009, a qualified vascular surgeon ran a proctorship program for CAS. The program was divided into four practical phases: in the teaching phase (a) the first 20 CAS were performed by the proctor assisted by a trainee surgeon; in the training phase (b) for the 21st to the 50th CAS the trainee surgeon was supervised by the proctor; in the skilled phase (c), between the 51st and the 80th procedure, a trainee surgeon performed CAS while the proctor was scrubbed-in but operating only on demand; in the final phase (d), following the 81st CAS, the procedure was performed without the proctor's presence. The inclusion criterion was carotid stenosis ≥70% and patient selection was performed for the first 40 cases based on patient and lesion characteristics. The procedure for CAS was standardized. RESULTS: Four trainees performed 604 CASs in two centers. The procedural success rate of CAS was 98.8% (N.=594/604) without any differences among the four trainees (P=0.902). The overall TIA, myocardial infarction, minor, major and fatal stroke rate at 30 days was respectively 1.7% (N.=10), 0.8% (N.=5), 1.2% (N.=7), 0.64% (N.=4) and 0.3% (N.=2). The effectiveness of this program was demonstrated by a significant decrease in the proctor's intervention between phase b and phase c (P<0.001) and by a similar trend in the complication rate achieved by the four trainees, in all phases and centers (P=0.075 and 0.788, respectively). CONCLUSION: This preliminary experience of a proctorship program in the LCP, together with patient selection and standardization of the procedure and materials used, seems to be safe and reproducible. Moreover, possibly randomized, studies comparing different CAS training techniques are needed in order to validate our findings.
Assuntos
Angioplastia/educação , Estenose das Carótidas/terapia , Educação de Pós-Graduação em Medicina , Internato e Residência , Stents , Idoso , Idoso de 80 Anos ou mais , Angioplastia/efeitos adversos , Angioplastia/instrumentação , Doenças Cardiovasculares/etiologia , Estenose das Carótidas/diagnóstico , Estenose das Carótidas/mortalidade , Competência Clínica , Currículo , Feminino , Humanos , Itália , Aprendizagem , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Projetos Piloto , Avaliação de Programas e Projetos de Saúde , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do TratamentoRESUMO
The rate of morbidity and mortality in patients undergoing open repair for thoracoabdominal aortic aneurysm (TAAA) still remains too high, ranging from 2% to 40%. In recent years "hybrid" techniques have been developed (EVAR and retrograde surgical revascularization) for the treatment of TAAA. This procedure has proved to be more effective to reduce the high risks of complication related to this kind of operation resulting in a lower morbidity and mortality rates when compared to traditional surgical techniques. A 77-year old patient who had previously been undergone surgical exclusion of a TAAA by using a straight aorto to aortic bypass graft (end to end fashion) with visceral patch, was referred to our behalf for the presence of a recurrent Crawford Type IV aortic aneurysm expansion of 10.5 cm length on diameter. Considering the serious co-morbidities of the patient and the high risk of mortality related to the traditional redo surgery, the hybrid technique was considered to repair this recurrent aneurysm by using a surgical debranching of the visceral and renal arteries from the aorta associated to the their retrograde revascularization before to perform the endovascular exclusion of the aneurysm at the same time in a single operation. Over a period of 12 months the patient was alive in good health, a follow-up by computed tomography (CT) scan confirmed the correct position of the endograft, without endoleaks, the patency of the bypasses and the reduction on diameter of the aneurysmal sac. The combined hybrid procedure (endovascular and open surgical approach) for treatment of complex TAAA is to be considered a feasible and effective surgical technique, but a larger number of cases and a longer follow-up are required either to validate this procedure or to get a more significant and statistical comparison to the traditional approach.
Assuntos
Aneurisma da Aorta Abdominal/cirurgia , Aneurisma da Aorta Torácica/cirurgia , Idoso , Aneurisma da Aorta Abdominal/complicações , Aneurisma da Aorta Torácica/complicações , Procedimentos Endovasculares , Humanos , Masculino , Recidiva , Procedimentos Cirúrgicos Vasculares/métodos , VíscerasRESUMO
BACKGROUND AND AIMS: The prognosis of patients with gastric cancer is poor, even following curative resection, and is related primarily to the extent of disease at presentation. In locally advanced gastric tumors, peritoneal lavage cytology (PLC) is a relevant prognostic factor. The Authors present their results of peritoneal washing cytology, evaluating the prognostic value of this technique, and discussing the clinical impact. PATIENTS AND METHODS: From July 2003 to May 2008, results of PLC in 64 patients with histologically proven primary gastric adenocarcinomas were analyzed. At laparotomy the abdomen was irrigated with 200 ml of normal saline, and ≥50 ml were aspirated and examined by means of cytology and immunocytopathology. RESULTS: PLC was positive in 7 cases (11%). Overall, 86% of patients with a positive PLC had a pT3/pT4 tumor and 100% with a positive PLC had an N-positive tumor (p < 0.001); 71% of patients with a positive PLC had a grade G3/G4 tumor (p = 0.001). At a median follow-up of 32 months, the cumulative 5-year survival was 28%. The median survival of patients presenting positive PLC (19 months) was significantly lower than that of patients with negative peritoneal cytology (38 months) (p = 0.0001). Multivariate analysis identified cytology as a significant predictor of outcome (p = 0.018). CONCLUSIONS: Results in the present series demonstrated that patients with a positive peritoneal cytology had advanced disease and poor prognosis, thus indicating that patients with locally advanced gastric cancer should undergo staging laparoscopy and PLC examination in order to select those requiring more aggressive treatment. Future therapeutic strategies should include PLC examination in preoperative staging, in order to select patients for more aggressive treatment.
Assuntos
Linfonodos/patologia , Invasividade Neoplásica/patologia , Lavagem Peritoneal/métodos , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Citodiagnóstico/métodos , Feminino , Gastrectomia/métodos , Gastrectomia/mortalidade , Humanos , Laparotomia/métodos , Excisão de Linfonodo , Linfonodos/cirurgia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Medição de Risco , Neoplasias Gástricas/cirurgia , Análise de Sobrevida , Fatores de Tempo , Resultado do TratamentoRESUMO
This study evaluated the feasibility of open infrarenal abdominal aortic aneurysm (AAA) surgery under peridural and spinal anesthesia (vigil patient) alone in high-risk patients with severe chronic obstructive pulmonary disease (COPD) ineligible for endovascular aneurysm repair (EVAR) or open surgery in general anesthesia. Between January 2005 and July 2007, seven patients underwent open AAA surgery with combined spinal and epidural anesthesia ([CSEA] without intubation) alone. Regional abdominal anesthesia was established by spinal anesthesia at L2-3 (levobupivacaine plus fentanyl) associated with peridural anesthesia at T7-8 (levobupivacaine). In this series (6 males and 1 female) the average age was 76.5 years (70-87); the AAA measured 7 cm in diameter on average (range 6-12.2). The survival rate was 100% (7/7 patients) at 6-12 months postoperative; no morbidities occurred during the postoperative phase. Owing to the small size of the series, no statistically significant conclusions can be drawn; even so, repair surgery was found to be effective, without the occurrence of morbidities or mortalities. In high-risk patients (severe COPD), open surgical repair of infrarenal AAA may be done with CSEA alone without intubation when, because of the patient's health, general anesthesia would pose too high a risk or when EVAR is unfeasible. Furthermore, the authors believe that surgical AAA repair under CSEA in vigil patients is a valid treatment option in those subjects with a high operative risk (severe COPD) and untreatable by either open AAA surgery under general anesthesia or EVAR.
Assuntos
Adjuvantes Anestésicos , Anestesia Epidural , Raquianestesia , Anestésicos Locais , Aneurisma da Aorta Abdominal/cirurgia , Doença Pulmonar Obstrutiva Crônica/complicações , Procedimentos Cirúrgicos Vasculares , Idoso , Idoso de 80 Anos ou mais , Anestesia Epidural/efeitos adversos , Raquianestesia/efeitos adversos , Aneurisma da Aorta Abdominal/complicações , Aneurisma da Aorta Abdominal/diagnóstico por imagem , Aortografia/métodos , Bupivacaína/análogos & derivados , Estudos de Viabilidade , Feminino , Fentanila , Humanos , Itália , Levobupivacaína , Masculino , Índice de Gravidade de Doença , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Procedimentos Cirúrgicos Vasculares/efeitos adversosRESUMO
AIM: The aim of this study is to evaluate early and long term results obtained with a retrospective review in 8-year experience with surgical/endovascular treatment of visceral artery aneurysm (VAA) in a single center. METHODS: Between 2001 and 2008 in our vascular surgery unit visceral artery aneurysms were diagnosed with CT and/or angiography in 17 patients (9 male), mean age 66 years old (range: 18 to 78). All patients underwent surgical or endovascular treatment of splanchnic artery aneurysm. In 14 patients the localization was single, in 3 it was multiple. The arteries involved were: splenic artery 53%, superior mesenteric artery 17.7%, pancreaticoduodenal artery 17.7%, celiac axis 5.8% and hepatic artery 5.8%. The 29.4% of the patients presented with aneurysm rupture. Coil embolizzation was used in 11.6% of the cases while surgery was used in 88.4% of the cases. RESULTS: Total survival rate was 94.2%, the survival rate in emergency cases was 80% while it was 100% in elective cases. Follow-up revealed excellent results after an average of 46 months (range: 8-102). CONCLUSION: The worst prognosis for ruptured cases associated with the good result of the surgical/endovascular treatment in elective cases, suggests active interaction for such pathologies; in emergency cases the mortality incidence is too high. Today endovascular treatment presents lower morbidity and mortality rates and shorter hospitalization, but surgery is still a good therapeutic option for the treatment of the VAA, in subjects with low surgical risk, determining a definitive and long-lasting correction of the aneurysmal pathology and guaranteeing the correct perfusion of the organs, by grafts; moreover many aneurysms are not suitable for endovascular treatment.
Assuntos
Aneurisma Roto/terapia , Aneurisma/terapia , Embolização Terapêutica , Procedimentos Cirúrgicos Vasculares , Vísceras/irrigação sanguínea , Adolescente , Adulto , Idoso , Aneurisma/diagnóstico por imagem , Aneurisma/mortalidade , Aneurisma/cirurgia , Aneurisma Roto/diagnóstico por imagem , Aneurisma Roto/mortalidade , Aneurisma Roto/cirurgia , Artérias/cirurgia , Procedimentos Cirúrgicos Eletivos , Embolização Terapêutica/efeitos adversos , Embolização Terapêutica/mortalidade , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Medição de Risco , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Procedimentos Cirúrgicos Vasculares/efeitos adversos , Procedimentos Cirúrgicos Vasculares/mortalidade , Adulto JovemRESUMO
AIM: This study investigated the fate of the stent inner surface in carotid artery stenting (CAS). In addition, the occurrence of late cerebral micro-embolism after CAS has been studied in order to identify predictors and correlate it with a possible neo-intimal layer. METHODS: A series of patients were evaluated before CAS through aortic arch trans-oesophageal echocardiography. Six months after CAS, the stent coverage by neo-intima and the possible presence of uncovered plaques were determined by high-resolution duplex scanning (5-17-Hz probe and 3D reconstruction). Possible micro-embolic signals (MESs) were evaluated through transcranial duplex scanning (30-min analysis of ipsilateral middle cerebral artery with a 1-4-Hz probe) and correlated with patients' characteristics, intimal media thickness (IMT) (>0.9mm vs. <0.9mm) and uncovered proximal plaques, type of stent (closed vs. open cells) and aortic arch complicated plaques (>4mm). Fisher's and Wilcoxon tests were used to evaluate differences across groups for categorical and continuous variables, respectively. RESULTS: In the 68 CASs examined (40 closed cells and 28 open cells), the stent was completely covered by neo-intima in 52 cases (76.4%). Complete coverage was significantly correlated with IMT<0.9mm and the absence of a proximal plaque uncovered by the stent (100% vs. 0%, p<0.001). Hypertension was an independent predictor of complete intimal coverage (p=0.002), while the stent type did not influence this process. The MESs were significantly more frequent in patients with complicated aortic arch plaques (62.5% vs. 23.8%, p<0.012), independently from all other factors. CONCLUSIONS: The extent of the stent neo-intimal formation is independent of stent type, but it is correlated with proximal plaque coverage. Six months after CAS, MESs are still possible and are not prevented by complete neo-intimal stent coverage. Complicated aortic arch atherosclerosis is an independent predictor of late MES, thus underlying its importance in cerebral ischaemia onset.
Assuntos
Aorta Torácica , Doenças da Aorta/cirurgia , Aterosclerose/cirurgia , Embolia Intracraniana/etiologia , Stents/efeitos adversos , Idoso , Doenças da Aorta/diagnóstico , Aterosclerose/diagnóstico , Progressão da Doença , Ecocardiografia Transesofagiana , Feminino , Seguimentos , Humanos , Imageamento Tridimensional , Incidência , Embolia Intracraniana/diagnóstico por imagem , Embolia Intracraniana/epidemiologia , Itália/epidemiologia , Masculino , Artéria Cerebral Média/diagnóstico por imagem , Prognóstico , Estudos Prospectivos , Falha de Prótese , Fatores de Risco , Túnica Íntima/diagnóstico por imagem , Ultrassonografia Doppler Dupla , Ultrassonografia Doppler Transcraniana/métodosAssuntos
Cirrose Hepática/patologia , Cirrose Hepática/terapia , Adulto , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/cirurgia , Progressão da Doença , Evolução Fatal , Hepatite C/complicações , Humanos , Hipertensão Portal/complicações , Hipertensão Portal/cirurgia , Cirrose Hepática/complicações , Cirrose Hepática/cirurgia , Transplante de Fígado , Masculino , Derivação Portocava CirúrgicaAssuntos
Hemangiossarcoma/diagnóstico , Leiomiossarcoma/diagnóstico , Neoplasias Vasculares/diagnóstico , Aneurisma Roto/diagnóstico , Aneurisma Roto/cirurgia , Aneurisma da Aorta Abdominal/diagnóstico , Aneurisma da Aorta Abdominal/cirurgia , Diagnóstico Diferencial , Evolução Fatal , Feminino , Hemangiossarcoma/cirurgia , Humanos , Leiomiossarcoma/cirurgia , Masculino , Pessoa de Meia-Idade , Prognóstico , Trombectomia , Neoplasias Vasculares/cirurgiaRESUMO
The link between specific personality profiles and a single psychotropic drug of choice is still unclear and only partially explored. The present study compares three groups of male subjects: 85 patients manifesting heroin dependence (age: 30.07 +/- 2.78), 60 patients manifesting cocaine dependence (age: 31.96 +/- 3.1), and 50 healthy subjects from a random population sample (age: 33.25 +/- 1.45). The patients included in the study showed a long-lasting history of dependence on heroin or cocaine, respectively, 5.2 +/- 2.5 years, 4.6 +/- 2.9 years, and were stabilized in treatment, and abstinent, at least 4 weeks at the time of the diagnostic assessment. Heroin addicts (52.90%) were on methadone maintenance treatment. Cocaine addicts (11.60%) were treated with selective serotonin reuptake inhibitors. Personality traits were measured by the Minnesota Multiphasic Personality Inventory (MMPI-2) and Cloninger's Three-dimensional Personality Questionnaire (TPQ). Character and quantification of aggressiveness were measured by the Buss-Durkee Hostility Inventory (BDHI). Heroin-dependent patients (group A) scored significantly higher on hysteria, masculine-feminine and social introversion subscales of the MMPI, and significantly lower on the harm avoidance (HA) subscale of the TPQ than cocaine addicts. In contrast, scores on the MMPI for hypochondria, psychopathic deviance, and paranoia dimensions were more elevated in cocaine addicts than in heroin-dependent patients. Cocaine addicts scored higher than heroin addicts on the "direct" aggressiveness subscale and on the BDHI total score. Cocaine addicts did not differ from healthy controls on harm avoidance (behavioral control). Although cocaine addicts showed more consistent psychopathic deviance and overt aggressiveness than heroin addicts, higher harm avoidance (behavioral control), hypochondria (or worry about their health), and social extroversion may reduce their proneness to overt antisocial behavior and allow relatively higher levels of social integration. The study's limitations are noted.
Assuntos
Comportamento de Escolha , Transtornos Relacionados ao Uso de Cocaína/epidemiologia , Dependência de Heroína/epidemiologia , Entorpecentes , Transtornos da Personalidade/epidemiologia , Adulto , Comorbidade , Feminino , Humanos , MMPI , Masculino , Transtornos da Personalidade/diagnóstico , Psicometria , Índice de Gravidade de DoençaRESUMO
OBJECTIVE: To establish the risk of carotid artery stent (CAS) complications in patients with aortic arch anomalies. METHODS: In a prospective series of patients submitted to CAS, all cases with arch anomalies were compared with cases with normal arch anatomy (type I, II and III) in order to assess the impact of anatomic characteristics on technical and clinical outcome. Outcome was evaluated in term of neurological complications and technical success. RESULTS: Of 214 consecutive patients undergoing CAS, 189 (88.3%) had normal arch anatomy and 25 (11.7%) arch anomalies. The arch abnormalities included common origin of brachiocephalic trunk and left common carotid artery in 22 cases (10.2%), separate origin of right subclavian and common carotid in 2 cases (0.9%) and left common carotid agenesis with separate arch origin of internal and external carotid in 1 case (0.5%). The two groups were not different in term of epidemiology and preoperative clinical and morphological characteristics. Technical failure occurred overall in 26 cases (12%) and neurological complication in 14 cases (6.5%). All symptoms were temporary. Technical failure was higher in the arch anomaly group; however the difference did not reach statistical significance (89.6% vs 76.4%, P=0.1). Neurological complications occurred more frequently in the arch anomaly group (20% vs 5.3%, P=0.039). Type of arch was the only variable independently associated with neurological complications (OR=2.01, p=0.026). CONCLUSION: Aortic arch anomalies are not infrequent and are associated with increased risk of neurological complications. The indication for CAS should be carefully evaluated in these cases.
Assuntos
Aorta Torácica/anormalidades , Estenose das Carótidas/cirurgia , Ataque Isquêmico Transitório/etiologia , Stents/efeitos adversos , Acidente Vascular Cerebral/etiologia , Idoso , Idoso de 80 Anos ou mais , Aorta Torácica/diagnóstico por imagem , Estenose das Carótidas/diagnóstico por imagem , Feminino , Seguimentos , Humanos , Ataque Isquêmico Transitório/epidemiologia , Ataque Isquêmico Transitório/fisiopatologia , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Razão de Chances , Seleção de Pacientes , Estudos Prospectivos , Radiografia , Medição de Risco , Índice de Gravidade de Doença , Stents/estatística & dados numéricos , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/fisiopatologia , Fatores de Tempo , Resultado do TratamentoRESUMO
AIM: Little data is available on surgical "rescue" of failed carotid stents (CAS). We have analyzed a series of CAS failures treated by conventional open surgery. REPORT: Five patients underwent surgery after CAS failure, either electively (4) or as an emergency (1). Elective surgical "rescue" was for stent restenosis (2 cases) or stent misplacement (2 cases). Emergency surgery was performed for entrapment of the protection system in the stent. Surgical rescue was accomplished by perimedial endarterectomy and "en bloc" plaque and stent extraction in 3 cases, and by vein bypass in 2 cases, with no neurological complications. CONCLUSION: Surgical rescue of failed CAS is effective.
Assuntos
Angioplastia , Doenças das Artérias Carótidas/cirurgia , Endarterectomia das Carótidas , Oclusão de Enxerto Vascular/cirurgia , Stents , Idoso , Aspirina/uso terapêutico , Feminino , Oclusão de Enxerto Vascular/tratamento farmacológico , Oclusão de Enxerto Vascular/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Inibidores da Agregação Plaquetária/uso terapêutico , Fatores de Tempo , Falha de Tratamento , Ultrassonografia Doppler em CoresRESUMO
BACKGROUND: This study aimed to evaluate the long-term risk of local and distant recurrence as well as the survival of patients with early rectal cancer treated using transanal endoscopic microsurgery (TEM). METHODS: The study reviewed 69 patients with Tis/T1/T2 rectal cancer treated using full-thickness excision between 1991 and 1999. The pathology T-stages included 25 Tis, 23 T1, and 21 T2. The median follow-up period was 6.5 years (range 5-10.2 years). RESULTS: The overall local recurrence rate was 8.7%. The 5-year local recurrence rate was 8% for Tis, 8.6% for T1, and 9.5% for T2. All six patients with recurrence were managed surgically. The 5-year disease-specific survival rate was 100% for Tis, 100% for T1, and 70% for T2. The overall cancer-related mortality rate was 7.2%. CONCLUSIONS: After local excision of early rectal cancer, a substantial local recurrence rate is observed. Patients with recurrent Tis/T1 cancers who undergo a salvage operation may achieve good long-term outcome. Local treatment without adjuvant therapy for T2 rectal cancers appears inadequate.
Assuntos
Microcirurgia , Proctoscopia/métodos , Neoplasias Retais/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Canal Anal , Quimioterapia Adjuvante , Feminino , Seguimentos , Humanos , Masculino , Microcirurgia/efeitos adversos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/cirurgia , Estadiamento de Neoplasias , Cuidados Pós-Operatórios , Cuidados Pré-Operatórios , Proctoscopia/efeitos adversos , Radioterapia Adjuvante , Neoplasias Retais/mortalidade , Neoplasias Retais/patologia , Reoperação , Análise de Sobrevida , Resultado do TratamentoRESUMO
OBJECTIVE: Pre-operative staging of rectal cancer should identify patients with extrarectal spread, who might benefit from pre-operative radiotherapy, and patients with minimal sphincteral involvement, who can avoid permanent colostomy. The aim of this study was to assess the accuracy of Magnetic Resonance Imaging (MRI) to predict tumour stage and sphincter status. PATIENTS AND METHODS: Thirty-three patients with a rectal tumour were pre-operatively assessed by MRI with a phased-array coil. Imaging results were correlated with the final pathological findings. RESULTS: The overall accuracy of pre-operative staging with MRI was 88% (k = 0.75) for extramural tumour invasion and 59% (k = 0.26) for lymph node metastases. MRI correctly evaluated the infiltration of the anal sphincters in 87% of patients (7 of 8 patients with low rectal tumour). CONCLUSION: MRI provides the surgeon with valuable information regarding extramural tumour spread and sphincteral involvement, enabling appropriate selection of patients for pre-operative adjuvant therapy or sphincter-saving surgery.
Assuntos
Neoplasias do Ânus/diagnóstico , Imageamento por Ressonância Magnética/instrumentação , Neoplasias Retais/diagnóstico , Adulto , Idoso , Neoplasias do Ânus/patologia , Neoplasias do Ânus/cirurgia , Colectomia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Estadiamento de Neoplasias , Valor Preditivo dos Testes , Cuidados Pré-Operatórios , Neoplasias Retais/patologia , Neoplasias Retais/cirurgiaRESUMO
BACKGROUND: Many medications have been used for stabilizing heroin users: Methadone, Buprenorphine and LAAM. The present review focus on the prescription of heroin to heroin dependents. OBJECTIVES: To assess the efficacy and acceptability of heroin maintenance versus methadone or other substitution treatments for opioid dependence, in retaining patients in treatment; reducing the use of illicit substances and improving health and social functioning. SEARCH STRATEGY: The Cochrane Central Register of Trials (CENTRAL) issue 1, 2005; MEDLINE 1966-2005, EMBASE 1980-2005 and CINAHL till 2005 (on OVID) were searched. There was no language or publication year restrictions. Many researchers were contacted for information. SELECTION CRITERIA: Randomised controlled trials of heroin (alone or combined with methadone) maintenance treatment compared with any other pharmacological treatments for heroin dependents. DATA COLLECTION AND ANALYSIS: The trials were independently assessed for inclusion and methodological quality by the reviewers. Data were extracted independently and double checked. Studies were not pooled together because of heterogeneity. MAIN RESULTS: 2400 references were obtained and 20 studies were eligible, 4 met the inclusion criteria for a total of 577 patients. The studies could not be analysed cumulatively because of heterogeneity of interventions and outcomes. Retention in treatment: no groups difference was found in two studies; one study (N=96) found RR=2.82 (95% CI 1.70-4.68) favouring heroin; one study (N=235) found RR 0.79 (95%CI 0.68-0.90) favouring methadone. Relapse to illegal heroin use (self- reported): in one study people using heroin in treatment was 64% (heroin group)and 59% (methadone group); in the other study the RR of heroin use was 0.33 (95%CI 0.15-0.72) favouring heroin. Criminal offence: one study showed the potential of heroin prescription in reducing the risk of being charged RR 0.32 (95% CI 0.14-0.78). Social functioning: two studies did not show statistical difference between intervention groups, and two studies considered criminal offence and social functioning as part of a multidomain outcome measure showing improvements among those treated with heroin plus methadone over those on methadone only. AUTHORS' CONCLUSIONS: No definitive conclusions about the overall effectiveness of heroin prescription is possible. Results favouring heroin treatment come from studies conducted in countries where easily accessible Methadone Maintenance Treatment at effective dosages is available. In those studies heroin prescription was addressed to patients who had failed previous methadone treatments. The present review contains information about ongoing trials which results will be integrated as soon as available.
Assuntos
Dependência de Heroína/reabilitação , Heroína/uso terapêutico , Entorpecentes/uso terapêutico , Humanos , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
AIM: Tympanosclerosis and atherosclerosis seem to have a similar inflammatory origin despite the different tissues involved. We have investigated the possible relationship between tympanosclerosis and atherosclerosis by evaluating the incidence of tympanic plaques in patients with significant carotid disease. METHODS: Between September 1(st) 2002 and April 30th 2003, we have evaluated all patients undergoing carotid surgery for significant carotid stenosis (group A). If at least 1/5 of the eardrum was occupied by plaques, then the case was considered positive. A control group of patients of similar age and no history of otological nor vascular pathologies was enrolled (group B). The 2 groups were compared statistically by Fisher's test and significance was set at p=0.05. RESULTS: Group A consisted of 84 patients. In this group 32 patients (38.1%) had tympanosclerosis; it was bilateral in 12 cases. Group B had 84 patients. In this group tympanosclerosis was present in 11 cases (13%). The difference between the 2 groups was statistically significant (p=0.005). CONCLUSION: More studies are needed before we can understand the cause of the association between these 2 pathologies. However early screening of atherosclerotic disease in patients with tympanosclerosis seems justifiable on the basis of the data of both the literature and the present study.