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1.
Unfallchirurg ; 114(8): 724-9, 2011 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-21327811

RESUMO

Traumatic rupture of the descending aorta is an acute life-threatening event. The most common cause is deceleration trauma resulting in a sudden stretching of the aortic isthmus as for example in car and motorcycle accidents and falls from a great height. Exemplified by a case report of a multiply injured 57-year-old male the diagnostic pathways, therapy and postoperative complications are presented.


Assuntos
Angioplastia/métodos , Aorta Torácica/lesões , Ruptura Aórtica/terapia , Implante de Prótese Vascular , Traumatismo Múltiplo/cirurgia , Stents , Aorta Torácica/diagnóstico por imagem , Ruptura Aórtica/diagnóstico por imagem , Aortografia , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada Multidetectores , Traumatismo Múltiplo/diagnóstico por imagem , Complicações Pós-Operatórias/diagnóstico por imagem , Ressuscitação
2.
Thorac Cardiovasc Surg ; 58(3): 143-7, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20376723

RESUMO

BACKGROUND: Aim of the study was to present the 10-year results after endovascular repair of acute traumatic rupture of the descending aorta in a single centre. METHODS: Forty-eight consecutive patients (35 men and 13 women; mean age 39.8 +/- 18 years) with traumatic lesions of the descending aorta were treated between March 1999 and November 2008. All patients were treated within 24 hours of admission. RESULTS: Thirty-one Gore TAG, 13 Medtronic Valiant, 6 Cook Zenith TX2 were used. The technical success rate was 100%, the conversion rate was 0%. Thirty-day mortality rate was 8.3%; overall procedure-related mortality was 2.1% due an acute stent graft compression syndrome. Infolding endografts were observed in 3 patients (6.25%). The left subclavian artery was covered in 35 cases (70%), in one patient revascularisation was necessary. No neurological deficit was reported. Mean follow-up was 51.9 months (4-116 months). No late complications occurred. CONCLUSION: Endovascular treatment of acute traumatic rupture of the thoracic aorta is a safe method, with a lower morbidity and mortality than open repair.


Assuntos
Aorta Torácica/cirurgia , Ruptura Aórtica/cirurgia , Implante de Prótese Vascular , Ferimentos e Lesões/cirurgia , Doença Aguda , Adolescente , Adulto , Idoso , Aorta Torácica/diagnóstico por imagem , Aorta Torácica/lesões , Ruptura Aórtica/diagnóstico por imagem , Ruptura Aórtica/mortalidade , Aortografia/métodos , Prótese Vascular , Implante de Prótese Vascular/efeitos adversos , Implante de Prótese Vascular/instrumentação , Implante de Prótese Vascular/mortalidade , Criança , Feminino , Humanos , Angiografia por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Stents , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Ferimentos e Lesões/diagnóstico por imagem , Ferimentos e Lesões/mortalidade , Adulto Jovem
3.
Thorac Cardiovasc Surg ; 58(3): 169-74, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20376728

RESUMO

INTRODUCTION: Bronchial stump insufficiency (BSI) remains one of the most feared complications with an incidence of 0-12% in the literature. PATIENTS AND METHOD: The present retrospective study reviewed the medical records of 11 patients with BSI. Patients were divided into two groups, depending on treatment. In group A, 5 patients were treated initially unsuccessfully using other therapeutic procedures such pectoralis flap transposition, omentum majus transposition and fibrin glue applications and subsequently treated successfully with vacuum therapy (VT). In 6 patients (group B), only VT (a combination of bronchial suture, thoracoplasty, latissimus muscle transposition and VT) was performed. VT represents a closed dressing system allowing moist wound treatment in full contact with the wound surface as well as protection against contamination with nosocomial pathogens by means of continuous drainage of wound secretions. RESULTS: Of the 11 patients reviewed in this study, closure of the bronchial stump with VT was achieved in 8 patients. Of the 8 patients with successful closure of the bronchial stump, 4 patients were in group A and 4 in group B. CONCLUSION: Based on this preliminary experience, the combination of bronchial suture, thoracoplasty, latissimus muscle transposition and VT appears to be a promising concept for the management of bronchial stump insufficiency.


Assuntos
Fístula Brônquica/terapia , Tratamento de Ferimentos com Pressão Negativa , Pneumonectomia/efeitos adversos , Retalhos Cirúrgicos , Técnicas de Sutura , Toracoplastia , Fístula Brônquica/etiologia , Terapia Combinada , Feminino , Adesivo Tecidual de Fibrina/uso terapêutico , Humanos , Masculino , Estudos Retrospectivos , Resultado do Tratamento
4.
Vasc Endovascular Surg ; 44(2): 110-5, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20034940

RESUMO

BACKGROUND: Hybrid procedures for thoracoabdominal aortic aneurysms (TAAA) have been previously described as an attractive alternative to open reconstruction. PATIENTS AND METHODS: Between 1999 and 2009, 16 patients with a median age of 67years underwent hybrid repair of a TAAA (Crawford type I: 3, type II: 3, type III: 1, and type IV: 9). In 94%, 3 and more severe comorbidities were present, with previous aortic surgery in 56% of the patients; elective/urgent repair was done in 10 and emergent surgery in 6 patients. RESULTS: Primary technical success was 100%, with 31 vessels grafted. Elective/urgent mortality was 20% (2 of 10) and emergent mortality 50% (3 of 6). During follow-up time (median: 12 months) 2 patients died and 2 patients had to undergo secondary interventions. CONCLUSION: In high-risk patients especially after prior aortic surgery hybrid repair of TAAA is feasible. However, due to high mortality rates especially in the emergent situation this procedure should be reserved only for decidedly selected patients.


Assuntos
Aneurisma da Aorta Torácica/cirurgia , Implante de Prótese Vascular , Adulto , Idoso , Aneurisma da Aorta Torácica/diagnóstico por imagem , Aneurisma da Aorta Torácica/mortalidade , Aortografia/métodos , Implante de Prótese Vascular/efeitos adversos , Implante de Prótese Vascular/mortalidade , Procedimentos Cirúrgicos Eletivos , Tratamento de Emergência , Estudos de Viabilidade , Feminino , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Reoperação , Medição de Risco , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento
5.
Chirurg ; 80(8): 706-10, 2009 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-19533068

RESUMO

Patients undergoing thoracic surgery are threatened by pulmonary complications such as pneumonia and atelectasis. Age, preoperative FEV(1), operative time and extent of resection are predictors for adverse outcome. Reported morbidity after lung resection is as high as 42% and mortality up to 7%. Fast track in thoracic surgery aims at reducing morbidity and mortality rates after lung resection by introducing specific measures into the pre-, intra- and postoperative periods. Basic fast track elements in thoracic surgery are smoking cessation, preoperative physiotherapy, micronutrient supplementation, high thoracic epidural anesthesia, fluid restriction, early mobilization and enteral feeding. The effectiveness of these individual measures has been proven of value in perioperative care, however, evidence on multimodal therapy regimens in thoracic surgery is limited. In particular it remains to be elucidated which patients should be fast tracked in order to improve outcomes.


Assuntos
Tempo de Internação , Procedimentos Cirúrgicos Minimamente Invasivos , Complicações Pós-Operatórias/prevenção & controle , Procedimentos Cirúrgicos Torácicos , Redução de Custos/economia , Deambulação Precoce , Medicina Baseada em Evidências/economia , Alemanha , Humanos , Tempo de Internação/economia , Procedimentos Cirúrgicos Minimamente Invasivos/economia , Assistência Perioperatória/economia , Complicações Pós-Operatórias/economia , Complicações Pós-Operatórias/mortalidade , Taxa de Sobrevida , Procedimentos Cirúrgicos Torácicos/economia , Procedimentos Desnecessários/economia
6.
Eur J Vasc Endovasc Surg ; 34(6): 666-72, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17716933

RESUMO

OBJECTIVES: To present a single centers' 7-year experience in the endovascular treatment of acute traumatic lesions of the descending thoracic aorta (ATL of the DTA). MATERIALS & METHODS: Between March 1999 and December 2006, 34 consecutive acute traumatic lesions of the descending aorta (23 men, mean age 44 years) were treated endovascularly. Stentgrafts used were TAG Excluder, Zenith TX2 and Talent. In 23 patients the Left Subclavian Artery (LSA) was covered. Mean procedural duration was 20 to 75 minutes. RESULTS: Exclusion of the rupture site was achieved in all cases with no conversion to open surgery. Overall 30-day mortality was 8.8%. Two patients died on post operative day (pod) 1 and one on pod 22 from cranial injuries. No death or neurological deficit related to the endovascular treatment was reported. Four type I endoleaks required treatment either by balloon reexpansion (n=2) or by additional stentgraft implantation (n=2). In two patients the stentgraft collapsed totally several days postoperatively. Two patients required secondary surgical procedures (iliac access complication and revascularisation of the left subclavian artery n=1). The average follow-up was 43.8 months (1-93 months). No stentgraft related abnormality has been subsequently documented. CONCLUSIONS: The endovascular treatment of ATL of the DTA may offer the best means of therapy in a polytrauma patient.


Assuntos
Angioplastia , Aorta Torácica/lesões , Ruptura Aórtica/cirurgia , Prótese Vascular , Stents , Adolescente , Adulto , Idoso , Aorta Torácica/diagnóstico por imagem , Aorta Torácica/cirurgia , Ruptura Aórtica/diagnóstico por imagem , Ruptura Aórtica/mortalidade , Aortografia , Causas de Morte , Criança , Desenho de Equipamento , Falha de Equipamento , Feminino , Fluoroscopia , Mortalidade Hospitalar , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico por imagem , Complicações Pós-Operatórias/mortalidade , Reoperação , Artéria Subclávia/diagnóstico por imagem , Tomografia Computadorizada Espiral
7.
Eur J Vasc Endovasc Surg ; 34(1): 66-73, 2007 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-17324593

RESUMO

BACKGROUND: In this study we evaluate published and personal experience of Endovascular Repair (EVAR) of penetrating atherosclerotic ulcers (PAU). PATIENTS AND METHOD: In 12 patients (mean 74 years, 58-87 years) PAU was diagnosed with computer tomography (CT). Symptomatic ulcers were treated by vascular surgeons using stentgrafts via a femoral access route. Patients were followed up clinically and with CT for an average of 849 days (186-1968 days). RESULTS: 11 patients had severe acute thoracic pain, one patient presented with hemoptysis. CT showed well outlined ulcer, intramural hematoma, and contrast enhancement of the aortic wall (n=12), pseudoaneurysm (n=11), intimal calcification adjoining the ulcer (n=10), pleural (n=9) and mediastinal fluid (n=4). Mean duration of surgery was 68min (32-120min). Primary technical success was achieved in all patients. There was no perioperative complications except one acute hemorrhage from an intercostal artery and one iliac dissection. 3 months after stentgraft application owing to a severe stenosis of the right common femoral artery, an iliofemoral bypass was performed in one patient. All patients were free of symptoms after the procedure. There was incomplete sealing of PAU in 2 of 12 patients, but no re-intervention was needed. All patients were alive during follow-up. CONCLUSION: Symptomatic PAU is a potentially fatal lesion. Considering the low morbidity and mortality of EVAR, this option might be first choice.


Assuntos
Doenças da Aorta/cirurgia , Aterosclerose/cirurgia , Implante de Prótese Vascular/métodos , Úlcera/cirurgia , Idoso , Idoso de 80 Anos ou mais , Angiografia Digital , Aorta Torácica , Doenças da Aorta/diagnóstico por imagem , Aterosclerose/diagnóstico por imagem , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Ruptura Espontânea , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Úlcera/diagnóstico por imagem
8.
Nuklearmedizin ; 46(1): 9-14; quiz N1-2, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17299649

RESUMO

AIM: In this prospective study, reliability of integrated (18)F-FDG PET/CT for staging of NSCLC was evaluated and compared to MDCT or PET alone. PATIENTS, METHODS: 240 patients (pts) with suspected NSCLC were examined using PET/CT. Of those patients 112 underwent surgery comprising 80 patients with NSCLC (T1 n = 26, T2 n = 37, T3 n = 11, T4 n = 6). Imaging modalities were evaluated independently. RESULTS: MDCT, PET and PET/CT diagnosed the correct T-stage in 40/80 pts (50%; CI: 0.39-0.61), 40/80 pts (50%; CI: 0.39-0.61) and 51/80 pts (64%; CI: 0.52-0.74), respectively, whereas equivocal T-stage was found in 15/80 pts (19%; CI: 0.11-0.19), 12/80 pts (15%; CI: 0.08-0.25) and 4/80 pts (5%; CI: 0.01-0.12), respectively. With PET/CT, T-stage was more frequently correct compared to MDCT (p = 0.003) or PET (p = 0.019). Pooling stages T1/T2, T-stage was correctly diagnosed with MDCT, PET and PET/CT in 54/80 pts (68%; CI: 0.56-0.78), 56/80 pts (70%; CI: 0.59-0.80) and 65/80 pts (81%; CI: 0.71-0.89). T3 stage was most difficult to diagnose. T3 tumors were correctly diagnosed with MDCT in 2/11 pts (18%; CI: 0.02-0.52) versus 0/11 pts (0%; CI: 0.00-0.28) with PET and 5/11 pts (45%; CI: 0.17-0.77) with PET/CT. In all imaging modalities, there were no equivocal findings for T4 tumors. Of these, MDCT found the correct tumor stage in 4/6 pts (67%; CI: 0.22-0.95), PET in 3/6 pts (50%; CI: 0.12-0.88) and PET/CT in 5/6 pts (83%; CI: 0.36-0.99). CONCLUSION: Integrated PET/CT was significantly more accurate for T-staging of NSCLC compared to MDCT or PET alone. The advantages of PET/CT are especially pronounced combining T1- and T2-stage as well as in advanced tumors.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/diagnóstico por imagem , Adulto , Idoso , Carcinoma Pulmonar de Células não Pequenas/patologia , Feminino , Fluordesoxiglucose F18 , Humanos , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias/métodos , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos , Reprodutibilidade dos Testes , Tomografia Computadorizada por Raios X
9.
Chirurg ; 77(8): 666-73, 2006 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-16850288

RESUMO

The role of vascular surgeons in the intensive care unit includes two major tasks: (1) consultant activity in complications of different operative specialties, for instance postoperative venous thrombosis after Wertheim's operation, mesenteric superior artery embolus, or arterial injury after total prosthetic replacement of the hip, (2) postoperative care following vascular surgery in order to identify and treat specific complications such as limb ischemia after reconstructive surgery, compartment monitoring after reperfusion injury of the aorta or extremities, carotis monitoring after postoperative apoplexy, and subsumed identification and treatment of ischemic and postischemic states in organs and tissues. Keeping vascular reconstructive options open is particularly important for polytrauma patients with blunt or open vascular injuries beginning from the thoracic aorta ending with subtotal amputation of the lower leg. Vascular surgeons in an intensive care setting play the central role in setting diagnostic course and therapy measures, while organ substitute therapy is within the administrative jurisdiction of the intensivist. Considering the complexity of morbidity in vascular patients, consultation by the intensivist, cardiologist, and neurologist is warranted.


Assuntos
Cuidados Críticos , Equipe de Assistência ao Paciente , Complicações Pós-Operatórias/terapia , Encaminhamento e Consulta , Procedimentos Cirúrgicos Vasculares , Humanos , Cuidados Pós-Operatórios , Complicações Pós-Operatórias/diagnóstico
10.
Chirurg ; 77(3): 281-96; quiz 297, 2006 Mar.
Artigo em Alemão | MEDLINE | ID: mdl-16477430

RESUMO

Thorax injuries may be divided etiologically into blunt and penetrating types, depending on the nature of the insult. In European practice, the former predominates by far, and in only about 5% of cases thoracotomy provides the necessary thorax drainage. Morbidity in this type of injury typically involves concomitant lung contusion, sometimes with fatal acute respiratory distress syndrome. In these cases, special ventilation forms, optimal reduction of pain, and organ replacement are the decisive therapeutic methods. In contrast, about 80% of penetrating trauma to the thorax require prompt transpleural or trans-sternal surgery, depending on the type of injury. Emergency first aid must follow the principle of "scoop and run". Each minute elapsed until emergent thoracotomy can be decisive to survival in these cases, and the fastest possible transport from the place of injury takes priority over time-consuming stabilization.


Assuntos
Emergências , Traumatismos Torácicos/cirurgia , Ferimentos não Penetrantes/cirurgia , Ferimentos Penetrantes/cirurgia , Contusões/diagnóstico por imagem , Contusões/mortalidade , Contusões/cirurgia , Primeiros Socorros , Humanos , Pulmão/diagnóstico por imagem , Lesão Pulmonar , Oxigênio/sangue , Pneumonectomia , Radiografia , Síndrome do Desconforto Respiratório/diagnóstico por imagem , Síndrome do Desconforto Respiratório/mortalidade , Síndrome do Desconforto Respiratório/cirurgia , Análise de Sobrevida , Traumatismos Torácicos/diagnóstico por imagem , Traumatismos Torácicos/mortalidade , Toracostomia , Toracotomia , Ferimentos não Penetrantes/diagnóstico por imagem , Ferimentos não Penetrantes/mortalidade , Ferimentos Penetrantes/diagnóstico por imagem , Ferimentos Penetrantes/mortalidade
11.
J Cardiovasc Surg (Torino) ; 46(2): 121-30, 2005 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15793491

RESUMO

Endovascular therapy (EVT) of thoracic aortic pathologies meanwhile is an established procedure with favourable midterm results in high risk patients. Different stent fabrications are available with defined flexibility, radial attachment force, metallic stent components and membrane porosities. Recent approval of the TAG Excluder (Gore) by the Food and Drug Administration (FDA) was an important step. Endoleaks, paraplegia, stroke and retrograde dissections are the main specific complications. Type I endoleak incidence rates are related to morphological case complexity; primary frequency rates of 0-20% are reported in the literature with 0-5% secondary incidence. Creating an appropriate proximal neck -- if necessary by supra-aortic branch remodelling -- and deliberate left subclavian artery overstenting is the key mechanism to avoid proximal endoleaks. Paraplegia rates are reportedly low with EVT in the range of 0-5%. Risk situations are: cases of rupture with compromised blood pressure, cases with a history of abdominal aortic aneurysm (AAA) exclusion, cases who require total overstenting of the descending thoracic aorta. The role of cerebrospinal fluid (CSF) drainage in EVT is not defined. Stroke as consequence of embolizing material from central endoaortic manipulations is almost in the same range as paraplegia, when morphologies in the distal arch are attacked. Retrograde dissection is reported not only after treatment of type B dissection but also after aneurysms. Rigid bare springs and ballooning in cases of type B dissection seem to be involved. In recent reports mortality in elective cases varies between 1.5% and 6.5%. All these data are promising but the proof of longterm durability is still lacking. Further development will show whether or not these preliminary data will translate into longterm success.


Assuntos
Aneurisma da Aorta Torácica/cirurgia , Implante de Prótese Vascular/efeitos adversos , Stents/efeitos adversos , Dissecção Aórtica/epidemiologia , Dissecção Aórtica/etiologia , Aneurisma da Aorta Abdominal/epidemiologia , Aneurisma da Aorta Abdominal/cirurgia , Aneurisma da Aorta Torácica/diagnóstico por imagem , Aneurisma da Aorta Torácica/epidemiologia , Ruptura Aórtica/epidemiologia , Ruptura Aórtica/etiologia , Aortografia , Implante de Prótese Vascular/instrumentação , Humanos , Incidência , Paraplegia/epidemiologia , Paraplegia/etiologia , Fatores de Risco , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologia
12.
Thorac Cardiovasc Surg ; 52(2): 96-101, 2004 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15103582

RESUMO

BACKGROUND: Mediastinal lymph node staging is essential to determine treatment options in patients with NSCLC. Positron emission tomography (PET) detects increased glucose uptake in malignant tissue using the glucose analogue 2-[(18)F]fluoro-2-deoxy-D-glucose (FDG). PATIENTS AND METHODS: In the present study were evaluated 155 patients with focal pulmonary tumors who underwent both preoperative computed tomography (CT) and FDG-PET scanning (116 malignant and 39 benign lesions). RESULTS: Findings in 155 patients included 116 malignant and 39 benign lesions. For N-staging, FDG-PET showed a sensitivity of 88%, a specificity of 91%, and an accuracy of 89%. Corresponding figures for CT were 77%, 76%, and 77%, respectively. CONCLUSIONS: FDG-PET is an effective, noninvasive method for staging thoracic lymph nodes in patients with lung cancer and is superior to CT scanning in the assessment of hilar and mediastinal nodal metastases. With regard to operability, FDG-PET could differentiate reliable between patients with N1/N2 disease and those with unresectable N3 disease.


Assuntos
Adenocarcinoma/diagnóstico , Adenocarcinoma/patologia , Carcinoma de Células Grandes/diagnóstico , Carcinoma de Células Grandes/patologia , Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/patologia , Fluordesoxiglucose F18 , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/patologia , Linfonodos/diagnóstico por imagem , Linfonodos/patologia , Compostos Radiofarmacêuticos , Tomografia Computadorizada de Emissão , Adulto , Idoso , Tumor Carcinoide/diagnóstico , Tumor Carcinoide/patologia , Reações Falso-Positivas , Feminino , Humanos , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Prospectivos , Sensibilidade e Especificidade , Tomografia Computadorizada por Raios X
13.
J Thorac Cardiovasc Surg ; 127(4): 1093-9, 2004 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15052207

RESUMO

BACKGROUND: 2-[(18)F]-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography has been established as a standard diagnostic imaging method in the preoperative workup of suspicious pulmonary focal lesions, showing a sensitivity of more than 90% and a specificity of about 80%. Determination of malignant pulmonary lesions with FDG positron emission tomography depends on the assessment of glucose metabolism. However, false-positive findings can occur in inflammatory processes, such as sarcoidosis or pneumonia. The thymidine analogue 3-deoxy-3[(18)F]-fluorothymidine (FLT) is a new positron emission tomography tracer that more specifically targets proliferative activity of malignant lesions. The objective of this study was to determine whether FLT positron emission tomography, in comparison with FDG positron emission tomography, provides additional information in the preoperative workup of central pulmonary focal lesions. METHODS: In this prospective study FLT and FDG positron emission tomography examinations were performed as a part of the preoperative workup in 20 patients with histologically confirmed bronchial carcinoma, 7 patients with benign lesions, and 1 patient with an atypical carcinoid. Results were compared with final pathologic findings. RESULTS: For staging of the primary tumor, FLT positron emission tomography revealed a sensitivity of 86% and a specificity of 100% compared with a sensitivity of 95% and a specificity of 73% for FDG positron emission tomography. For N staging, the sensitivity of FLT positron emission tomography was 57% and the specificity was 100%, and for FDG positron emission tomography, the sensitivity was 86% and the specificity was 100%, respectively. CONCLUSIONS: Our preliminary findings indicate specific FLT uptake in malignant lesions. The number of false-positive findings in FDG positron emission tomography might be reduced with FLT positron emission tomography. Therefore positron emission tomography imaging with FLT represents a useful supplement to FDG in assessing the malignancy of central pulmonary focal lesions.


Assuntos
Adenocarcinoma/diagnóstico , Carcinoma Broncogênico/diagnóstico , Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Carcinoma de Células Escamosas/diagnóstico , Radioisótopos de Flúor , Fluordesoxiglucose F18 , Neoplasias Pulmonares/diagnóstico , Compostos Radiofarmacêuticos , Tomografia Computadorizada de Emissão , Adenocarcinoma/patologia , Adulto , Idoso , Carcinoma Broncogênico/patologia , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma de Células Escamosas/patologia , Reações Falso-Positivas , Feminino , Humanos , Neoplasias Pulmonares/patologia , Linfonodos/diagnóstico por imagem , Linfonodos/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Primárias Múltiplas/diagnóstico , Neoplasias Primárias Múltiplas/patologia , Estudos Prospectivos , Sensibilidade e Especificidade
14.
Chirurg ; 75(4): 354-8, 2004 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-15045203

RESUMO

Occasionally, thoracic interventions may require interdisciplinary teamwork with plastic surgery, heart and vascular surgery, or neurosurgery. Thoracic wall defects following excision of primary wall tumors or recurrent, ulcerating tumors of the breast may require full-thickness myocutaneous flaps, which can best be done with the help of plastic surgeons. In case of infiltration of the heart or thoracic aorta, the en bloc principle of T4 lung tumors occasionally requires the help of heart surgeons, for open atrial resection using the heart-lung machine, or vascular surgeons for aortic graft interposition. Paravertebral dumbbell tumors occasionally may infiltrate to the intraspinal space and therefore need removal by neurosurgeons. When and why other specialists are required for an interdisciplinary approach to diseases of the chest has not been clearly defined. Therefore it is wise to gain informed consent from the patient about the roles of different specialists in interdisciplinary treatment for his disease.


Assuntos
Equipe de Assistência ao Paciente , Procedimentos de Cirurgia Plástica , Neoplasias da Coluna Vertebral/cirurgia , Neoplasias Torácicas/cirurgia , Vértebras Torácicas/cirurgia , Neoplasias Vasculares/cirurgia , Idoso , Comorbidade , Humanos , Pulmão/patologia , Imageamento por Ressonância Magnética , Masculino , Microcirurgia , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Pneumonectomia , Neoplasias da Coluna Vertebral/diagnóstico , Neoplasias da Coluna Vertebral/patologia , Neoplasias Torácicas/diagnóstico , Neoplasias Torácicas/patologia , Vértebras Torácicas/patologia , Tomografia Computadorizada por Raios X , Tuberculose Pulmonar/diagnóstico , Tuberculose Pulmonar/patologia , Tuberculose Pulmonar/cirurgia , Neoplasias Vasculares/diagnóstico , Neoplasias Vasculares/patologia
15.
Chirurg ; 74(12): 1118-27, 2003 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-14673534

RESUMO

There is still controversial discussion concerning the therapy of limb-threatening ischaemia. In a retrospective study, we investigated and compared surgical and percutaneous interventional methods in the treatment of both embolic and thrombotic vascular occlusions in patients with pre-existing arteriosclerotic disease and attempted to propose therapy guidelines for these methods in the therapy of acute limb ischaemia. Percutaneous mechanical thrombectomy represents a viable therapeutic alternative to surgical or surgical-interventional modalities, particularly in patients with occlusions consisting of soft, embolic material or located in infrapopliteal vessels. The indication for each respective method should be interdisciplinary and must be based on the individual patients' clinical and angiographic findings. Additional intraoperative endovascular procedures increase the range of therapeutic options and permit optimal revascularisation of vessels both proximal and distal to the site of occlusion.


Assuntos
Extremidades/irrigação sanguínea , Isquemia/terapia , Trombectomia , Terapia Trombolítica , Doença Aguda , Idoso , Algoritmos , Angiografia , Arteriopatias Oclusivas/cirurgia , Arteriopatias Oclusivas/terapia , Prótese Vascular , Cateterismo , Feminino , Fibrinolíticos/administração & dosagem , Fibrinolíticos/uso terapêutico , Seguimentos , Humanos , Isquemia/diagnóstico por imagem , Isquemia/tratamento farmacológico , Isquemia/cirurgia , Masculino , Seleção de Pacientes , Ativadores de Plasminogênio/administração & dosagem , Ativadores de Plasminogênio/uso terapêutico , Estudos Retrospectivos , Stents , Trombectomia/métodos , Fatores de Tempo , Resultado do Tratamento , Ativador de Plasminogênio Tipo Uroquinase/administração & dosagem , Ativador de Plasminogênio Tipo Uroquinase/uso terapêutico
16.
J Card Surg ; 18(4): 367-74, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-12869185

RESUMO

PURPOSE: The purpose is to present results of endovascular exclusion (stent-graft treatment) of aneurysms of the descending thoracic aorta both in elective cases and in emergencies. METHODS: Indications for stent-graft treatment were dependent on multislice angio-CT evaluation revealing a proximal neck of at least 10 mm between the left common carotid artery and the onset of aneurysm. All stent grafts were inserted in the operating room; 43 transfemoral, 2 transiliac. The stent grafts used were Corvita, Stenford, Vanguard, AneuRx, Talent, and Excluder. Deployment was achieved under fluoroscopic control, endoleaks were checked for with D S A on the operating table and postoperatively by angio-CT. Long-term follow-up consisted of evaluation with angio-CT after 6 and 12 months, and from there on once a year and with plain chest X-rays. Follow-up was achieved in all patients. RESULTS: Mean follow-up is 21 months (1-66); 30-day mortality is 3/45, no permanent neurologic deficit. Thirty patients were treated electively, 15 with contained rupture. Left subclavian artery overstenting proved to be necessary in 12 patients for proper proximal sealing of the aneurysm, type I endoleaks were observed in 10 patients, one early conversion, 7 proximal extension cuffs, one sealed spontaneously, one still at risk. Among patients where LSA had been overstented only one wanted a transposition, all others did well without left-hand ischemia or subclavian steal syndrome. CONCLUSION: Endovascular treatment is less invasive and has reasonable mortality and morbidity but is limited to well-defined morphologies. Mid-term results are promising but it has to be observed whether these will translate into long-term durability.


Assuntos
Aneurisma da Aorta Torácica/cirurgia , Implante de Prótese Vascular , Stents , Idoso , Angiografia , Aneurisma da Aorta Torácica/diagnóstico por imagem , Procedimentos Cirúrgicos Eletivos , Feminino , Seguimentos , Humanos , Masculino , Desenho de Prótese , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento
17.
Int Angiol ; 22(2): 125-33, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12865877

RESUMO

AIM: The conventional approach for the repair of thoracoabdominal aneurysms remains complex and demanding and is associated with substantial morbidity and mortality. Moreover, in cases of reoperation the impact can be dramatic either in survival or in quality of life of the patients, albeit the use of adjuncts. A combined endovascular and surgical approach with retrograde perfusion of visceral and renal vessels has been realized in order to minimize intraoperative and postoperative complications. METHODS: Within an experience of 231 aortic stent-grafts between 1995-2000, 4 of the patients with thoracoabdominal aneurysms were treated with a combined endovascular and surgical approach. Three procedures were electively conducted and 1 on emergency basis. Two women, 59 and 68 years old, and 2 men, 68 and 73 years old (maximum aneurysm's diameter was 10, 6, 8 and 9 cm, respectively) were operated with the combined method (the first 2 patients had a previous open repair of a thoracoabdominal aneurysm). The surgical approach was executed in all patients without thoracotomy or re-do retroperitoneal exposure. Revascularization of renal, superior mesenteric (and celiac in 2 cases) arteries was accomplished via transperitoneal bypass grafting. Aneurysmal exclusion was performed by stent-graft deployment. RESULTS: The entire procedure was technically successful in all patients. The 1(st) patient was discharged 6 weeks after the operation, while the postoperative studies revealed the patency of the vessels and no evidence of leak or secondary rupture of the aneurysm; the patient died 3 months after the repair, due to rupture of an aneurysm of the ascending aorta. In the 2(nd) patient, 30 months after the operation, spiral-CT scanning revealed distinct shrinkage of the aneurysm, no graft migration or endoleak and patency of all revascularized vessels. The 3(rd) patient died on the 6th postoperative day due to multiorgan failure after having developed ischemic-related pancreatitis, albeit the successful combined repair. The 4(th) patient followed an uneventful course. No patient experienced any temporary or permanent neurological deficit. CONCLUSION: The combined endovascular and surgical approach is feasible, without cross-clamping of the aorta and with minimized ischemia time for renal and visceral arteries, and seems the appropriate strategy for high risk and previously operated, with a thoracoabdominal trans-diaphragmatic approach, patients.


Assuntos
Aneurisma da Aorta Abdominal/cirurgia , Aneurisma da Aorta Torácica/cirurgia , Procedimentos Cirúrgicos Vasculares , Idoso , Aneurisma da Aorta Abdominal/diagnóstico , Aneurisma da Aorta Torácica/diagnóstico , Ruptura Aórtica/diagnóstico , Ruptura Aórtica/cirurgia , Prótese Vascular , Artéria Celíaca/diagnóstico por imagem , Artéria Celíaca/transplante , Terapia Combinada , Feminino , Humanos , Masculino , Artéria Mesentérica Superior/diagnóstico por imagem , Artéria Mesentérica Superior/transplante , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Artéria Renal/diagnóstico por imagem , Artéria Renal/transplante , Reoperação , Stents , Tomografia Computadorizada por Raios X , Resultado do Tratamento
18.
J Vasc Surg ; 37(1): 91-9, 2003 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-12514583

RESUMO

OBJECTIVE: The purpose of this study was to evaluate endovascular treatment in diseases of the descending thoracic aorta. MATERIAL AND METHODS: This study was designed as a single center's (university hospital) experience. Over a 6-year period (1995 to 2001), thoracic endografts were placed in 74 patients with a diseased descending thoracic aorta who were at high risk for conventional open surgical repair: 34 had atherosclerotic aneurysms, six had posttraumatic aneurysms, 14 had type B dissection with aneurysmal dilatation of the false lumen, 12 had isthmic transections from blunt trauma, five had thoracoabdominal aneurysms (treated with a combined procedure), two had aortic coarctation, and one had an aortobronchial fistula. Twenty-six procedures (35.1%) were conducted as emergencies, and 48 (64.9%) were elective. The feasibility of endovascular treatment and sizing of stent grafts were determined with preoperative spiral computed tomography and intraoperative angiography. RESULTS: Endovascular operations were completed successfully in all 74 patients; postprocedural conversion to open repair was necessary in three cases. The overall 30-day mortality rate was 9.5% (seven deaths). Temporary neurologic deficits developed in two patients; not one patient had permanent paraplegia. The primary endoleak rate was 20.3% (15 patients). The mean follow-up period was 22 months (range, 3 to 72 months). Five deaths occurred in the follow-up period, and three patients needed secondary conversion to open repair 2, 3, and 14 months after initial endografting. CONCLUSION: Endoluminal treatment in diseases of the thoracic descending aorta is feasible and may offer results as good as the open method.


Assuntos
Aorta Torácica , Doenças da Aorta/terapia , Stents , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Dissecção Aórtica/terapia , Aorta Torácica/lesões , Aneurisma da Aorta Abdominal/terapia , Aneurisma da Aorta Torácica/terapia , Coartação Aórtica/terapia , Doenças da Aorta/mortalidade , Arteriosclerose/terapia , Fístula Brônquica/terapia , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Fístula Vascular/terapia
19.
Eur J Vasc Endovasc Surg ; 24(3): 269-73, 2002 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-12217291

RESUMO

OBJECTIVES: heat shock protein (HSP70) has been studied in the ischaemic myocardium and proven to provide protection against ischaemia. However, HSP70 in ischaemic skeletal muscle in patients with peripheral arterial occlusive disease (PAOD) has not been reported. METHODS: thirty-four patients with PAOD (Fontaine's criteria: stage II: 15; III: 9 and IV: 10, respectively) and ten non-PAOD controls were enrolled in the study. Calf muscle samples were taken. HSP70 was quantitated by SDS-PAGE using ultrasensitive silver staining with reference to a series of standard HSP70, and HSP70 mRNA was estimated using RT-PCR. RESULTS: in comparison with the controls [median with range: 24.8 (14.1-35.6) ng in 2.5 microg total protein], HSP70 was increased significantly in PAOD [stage II: 93.1 (62.7-114.3); stage III: 110.1 (89.7-134.5) and stage IV: 77.4 (67.3-101.1)]. Similar results were obtained with HSP70 mRNA. CONCLUSIONS: HSP70 is increased in the ischaemic skeletal muscle in patients with PAOD, and HSP70 expression is different with regard to clinical stages, and the upregulation of HSP70 mRNA implies that the expression of HSP70 seems to be regulated at transcriptional level.


Assuntos
Arteriopatias Oclusivas/genética , Arteriopatias Oclusivas/patologia , Expressão Gênica/genética , Proteínas de Choque Térmico HSP70/análise , Proteínas de Choque Térmico HSP70/genética , Músculo Esquelético/patologia , Doenças Vasculares Periféricas/genética , Doenças Vasculares Periféricas/patologia , RNA Mensageiro/análise , RNA Mensageiro/genética , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Perna (Membro)/patologia , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Índice de Gravidade de Doença
20.
Chirurg ; 73(6): 595-600, 2002 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-12149945

RESUMO

INTRODUCTION: Open repair of traumatic descending aortic rupture in trauma patients is associated with a mortality rate of 15-20% and a risk of paraplegia of 5-10%. Stent grafts may decrease the morbidity and mortality of these procedures by reducing blood loss and aortic occlusion time. MATERIAL AND METHODS: Within an experience of 52 thoracic stent grafts between 1995 and 2000, eight men with acute traumatic descending aortic rupture were conducted as emergencies without delay. All patients had severe coinjuries and presented with acute onset of mediastinal hematoma due to periaortic bleeding. Successful stent deployment was performed in all eight patients, seven of them required one single stent and one required two stents; within the aortic arch all stents covered the origin of the left subclavian artery. RESULTS: All acute aortic ruptures were sealed successfully. One death occurred in hospital from multiorgan failure. There was no conversion to open repair. Not one patient's condition resulted in temporary or permanent paraplegia. One endoleak required treatment by overstenting. Two patients required secondary surgical procedures (iliac access complication and revascularisation of left subclavian artery). Mean follow-up was 11 months (1-21 months). Mid-term freedom from endoleak was monitored in all patients. CONCLUSION: The treatment of acute traumatic descending aortic rupture with an endovascular approach is feasible and safe and may offer the best means of therapy. The mortality rate and risk of paraplegia are low compared with the risks associated with open operations. Continued surveillance is essential.


Assuntos
Angioplastia com Balão , Aorta Torácica/lesões , Ruptura Aórtica/terapia , Implante de Prótese Vascular , Traumatismo Múltiplo/terapia , Stents , Doença Aguda , Adolescente , Adulto , Idoso , Aorta Torácica/diagnóstico por imagem , Aorta Torácica/patologia , Ruptura Aórtica/diagnóstico por imagem , Ruptura Aórtica/mortalidade , Ruptura Aórtica/patologia , Aortografia , Causas de Morte , Humanos , Masculino , Pessoa de Meia-Idade , Traumatismo Múltiplo/diagnóstico por imagem , Traumatismo Múltiplo/mortalidade , Traumatismo Múltiplo/patologia , Taxa de Sobrevida , Tomografia Computadorizada por Raios X
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