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1.
SEMERGEN, Soc. Esp. Med. Rural Gen. (Ed. Impr.) ; 45(3): 187-196, abr. 2019. ilus, tab, graf
Artigo em Espanhol | IBECS | ID: ibc-192742

RESUMO

La trombosis venosa superficial de miembros inferiores se venía considerando como una patología de naturaleza benigna con un curso clínico autolimitado, actualmente se conoce que sus potenciales complicaciones pueden ser graves o incluso mortales como pueden ser la trombosis venosa profunda o el tromboembolismo pulmonar. Existen diferentes formas de presentación clínica, factores de riesgo y diferentes tratamientos para su abordaje principalmente en Atención Primaria. Nuestro grupo de trabajo de vasculopatías de la Sociedad Española de Médicos de Atención Primaria (SEMERGEN) ha elaborado esta actualización con la evidencia científica actual de forma conjunta con el Capítulo Español de Flebología y Linfología de la Sociedad Española de Angiología y Cirugía Vascular


Superficial vein thrombosis of the lower limbs used to be considered a benign condition with a self-limiting clinical course. It is now known that its potential complications can be serious or even fatal, such as deep vein thrombosis or pulmonary thromboembolism. There are different forms of clinical presentation, risk factors and different treatments for its approach, mainly in Primary Care. The Vascular Diseases Working Group of the Spanish Society of Primary Care Physicians (SEMERGEN) has developed this update using current scientific evidence and jointly with the Spanish Chapter of Phlebology and Lymphology of the Spanish Society of Angiology and Vascular Surgery


Assuntos
Humanos , Atenção Primária à Saúde/métodos , Trombose Venosa/diagnóstico , Trombose Venosa/terapia , Terapia Combinada , Extremidade Inferior , Fatores de Risco , Sociedades Médicas , Espanha/epidemiologia , Trombose Venosa/complicações , Trombose Venosa/epidemiologia
2.
Semergen ; 45(3): 187-196, 2019 Apr.
Artigo em Espanhol | MEDLINE | ID: mdl-30522812

RESUMO

Superficial vein thrombosis of the lower limbs used to be considered a benign condition with a self-limiting clinical course. It is now known that its potential complications can be serious or even fatal, such as deep vein thrombosis or pulmonary thromboembolism. There are different forms of clinical presentation, risk factors and different treatments for its approach, mainly in Primary Care. The Vascular Diseases Working Group of the Spanish Society of Primary Care Physicians (SEMERGEN) has developed this update using current scientific evidence and jointly with the Spanish Chapter of Phlebology and Lymphology of the Spanish Society of Angiology and Vascular Surgery.


Assuntos
Atenção Primária à Saúde/métodos , Trombose Venosa/diagnóstico , Trombose Venosa/terapia , Terapia Combinada , Humanos , Extremidade Inferior , Fatores de Risco , Sociedades Médicas , Espanha/epidemiologia , Trombose Venosa/complicações , Trombose Venosa/epidemiologia
3.
Angiología ; 67(1): 43-47, ene.-feb. 2015.
Artigo em Espanhol | IBECS | ID: ibc-131493

RESUMO

La disección aguda tipo B es una de las más temibles enfermedades que pueden acontecer en la aorta. Clásicamente, el tratamiento recomendado ha sido conservador, encaminado sobre todo a un correcto control de la tensión arterial y el dolor. Sin embargo, el advenimiento de la terapia endovascular y su aplicación satisfactoria en disecciones aórticas complicadas (pacientes con inestabilidad hemodinámica, isquemia periférica, malperfusión visceral o rotura contenida) ha expandido su empleo en todos los casos. Este hecho ha suscitado una importante controversia en relación con el tratamiento adecuado de esta dolencia, especialmente en aquellas disecciones no complicadas. Hasta el momento actual, el tratamiento endovascular parece que se asocia a un mayor grado de trombosis de la luz falsa y una remodelación más favorable de la aorta durante su seguimiento, pero faltan datos que demuestren que esa actitud mejora la supervivencia global de los pacientes. Los autores de estos artículos analizan la eficacia de la terapia endovascular en disecciones no complicadas de la aorta descendente, revisando las últimas evidencias a favor y en contra de su empleo


Acute type-B dissection is one of the most dreaded diseases that can occur in the aorta. Classically, the preferred medical treatment has been the perfect control of the blood pressure and the pain. However, the advent of endovascular therapy and its successful implementation in complicated aortic dissections (patients with hemodynamic instability, peripheral ischemia, visceral malperfusion or contained rupture) has expanded its use in all cases. This has led to considerable controversy regarding the appropriate treatment of this disease, especially in uncomplicated aortic dissections. To date, endovascular therapy appears to cause more thrombosis of the false lumen and a more favorable remodeling of the aorta during the followup, but missing data shows that this approach improves the overall survival of these patients. The authors of these articles analyze the effectiveness of endovascular therapy in uncomplicated dissections of the descending aorta, reviewing the latest evidence for and against its use


Assuntos
Humanos , Masculino , Feminino , Dissecação , Dissecação/ética , Dissecação/instrumentação , Procedimentos Endovasculares/ética , Procedimentos Endovasculares/instrumentação , Procedimentos Endovasculares/métodos , Trombose/complicações , Trombose/diagnóstico , Dissecação/classificação , Dissecação/normas , Dissecação , Procedimentos Endovasculares/classificação , Procedimentos Endovasculares , Trombose/classificação , Trombose/metabolismo , Preparações Farmacêuticas/administração & dosagem , Preparações Farmacêuticas/análise
4.
Angiología ; 66(2): 64-69, mar.-abr. 2014. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-121886

RESUMO

INTRODUCCIÓN: El alprostadil tiene efecto vasodilatador y antiagregante. Es bien conocido su efecto endotelial, pero se desconocen sus posibles efectos pleiotrópicos sobre el músculo esquelético y si estos difieren en el músculo isquémico. OBJETIVO: Determinar el efecto del alprostadil sobre el metabolismo del músculo esquelético y valorar diferencias en su acción sobre el músculo isquémico frente al sano. MATERIAL Y MÉTODOS: Se obtuvieron muestras de tejido de 10 pacientes con isquemia irreversible intervenidos de amputación supracondílea, tanto de músculo isquémico (extensor corto de los dedos del pie, grupo I) como de músculo sano (músculo cuádriceps del borde de amputación, grupo S). Ambos grupos se cultivaron basalmente y con 5 ng de alprostadil. Se analizó la expresión proteómica de las siguientes enzimas: triosa-fosfato-isomerasa (TPI), malato deshidrogenasa (MDH), lactato deshidrogenasa (LDH) y piruvato carboxilasa (PC). Se determinaron también sus productos, lactato y piruvato. RESULTADOS: La MDH presentó una disminución en el grupo I en las muestras basales (2.196 ± 348 grupo S vs 644 ± 192 grupo I, p < 0,05). La PC estaba aumentada en el grupo I en ambos tipos de muestras (basal: 1,80 ± 1,27 vs 3,16 ± 2,25; alprostadil: 6,72 ± 2,13 vs 8,16 ± 3,63, grupo S vs grupo I, respectivamente, p < 0,05). No hubo diferencias significativas en la concentración de lactato ni en la de piruvato. CONCLUSIONES: La reducción de MDH en el músculo isquémico sugiere una reducción del ciclo de Krebs. El alprostadil estimula la expresión de PC, que induce la formación de oxalacetato; este se introduce en el ciclo de Krebs, permitiéndole funcionar parcialmente en el músculo isquémico y mejorando la obtención de energía


INTRODUCTION: Alprostadil has vasodilator properties and inhibits platelet aggregation. Its effects on endothelial wall have been widely studied, but there is no knowledge about possible skeletal muscle effects, and differences with ischemic muscle. OBJECTIVE: To determine the effects of alprostadil on skeletal muscle metabolism, and to investigate possible differences with ischemic muscle. METHODS: Samples were obtained in 10 patients with leg above-knee amputation due to severe irreversible ischemia, of ischemic muscle (extensor digitorum brevis, group I), and healthy muscle (quadriceps femoris, amputation edge, group S). Muscle segments were incubated with alprostadil 5 ng, or without it (baseline). Proteomic analysis of metabolic enzymes was performed: Triose-phosphate isomerase (TPI), malate dehydrogenase (MDH), lactate dehydrogenase (LDH) and pyruvate carboxylase (PC). Lactate and pyruvate was also determined. RESULTS: A decrease in malate dehydrogenase was observed in group I in the baseline samples (2196 ± 348 group S vs 644 ± 192 group I, P < 0.05). PC was increased in both samples in group I (baseline: 1.80 ± 1.27 vs 3.16 ± 2.25; alprostadil: 6.72 ± 2.13 vs 8.16 ± 3.63, group S vs group I, respectively, P < 0.05). No changes were observed in pyruvate and lactate. DISCUSSION: Decreased MDH in ischemic muscle suggests a Krebs cycle reduction. Alprostadil stimulates the expression of PC, which leads to oxaloacetate production. This product is inserted in Krebs cycle, improving energy obtaining. In this manner, Krebs cycle can work partially in ischemic muscle


Assuntos
Humanos , Músculo Esquelético , Alprostadil/farmacocinética , Isquemia/tratamento farmacológico , Proteoma , Vasodilatadores/farmacocinética , Proteômica/métodos
5.
Angiología ; 65(5): 175-182, sept.-oct. 2013. ilus, tab, graf
Artigo em Espanhol | IBECS | ID: ibc-124190

RESUMO

A pesar de su sencillez estructural, las plaquetas son células funcionalmente muy complejas debido a su capacidad para producir y liberar biomoléculas. De aquí su importancia en el desarrollo de la arteriosclerosis. Se realizó un experimento in vitro para estudiar la actividad de las plaquetas sobre la pared vascular observando los cambios en la expresión proteica del citoesqueleto en segmentos de aorta bovina incubados con plasma rico en plaquetas. Para intentar simular un estado inflamatorio (arteriosclerosis), se realizaron estas mismas determinaciones en segmentos preestimulados con factor de necrosis tumoral. Se observó una modulación de la expresión de la mayoría de las proteínas del citoesqueleto en los segmentos de aorta sana. Sin embargo, en los segmentos preestimulados el número de proteínas fue menor, pudiendo reflejar una capacidad dual de las plaquetas para alterar la contractilidad vascular en función del estado inflamatorio de la pared vascular (AU)


Despite its structural simplicity, platelets are functionally complex cells due to their ability to produce and release biomolecules. Hence its importance in the development of atherosclerosis. An in vitro experiment was conducted to study the effect of the platelets on the vascular wall by observing changes in the cytoskeletal protein expression in bovine aortic segments incubated with platelet rich plasma. With the aim of simulating an inflammatory state (atherosclerosis), these same measurements were performed on aortic segments pre-stimulated with tumour necrosis factor. We observed a modulation of the expression of most of the cytoskeletal proteins in healthy aorta segments. However, the number of modified proteins was less in pre-stimulated segments. These results may reflect a dual platelet capacity to alter vascular contractility in relation to the inflammatory condition of the vascular wall (AU)


Assuntos
Humanos , Plaquetas/fisiologia , Mediadores da Inflamação/análise , Inflamação/fisiopatologia , Proteômica/métodos , Endotélio Vascular/fisiopatologia , Aterosclerose/fisiopatologia , Proteínas do Citoesqueleto/fisiologia
7.
Int Angiol ; 32(1): 61-6, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23435393

RESUMO

AIM: Traumatic aortic injury is usually lethal, most often because of serious associated wounds. The short- and midterm outcome of endovascular exclusion was assessed as the current treatment of choice due to a lower mortality and morbidity than open surgical treatment. METHODS: We reviewed the cases of 8 patients (5 male, mean age 33 years) undergoing endovascular repair of a traumatic thoracic aortic lesion, confirmed by computed tomographic angiography, at our centre. Most patients showed a contained lesion limited to the aortic isthmus and severe associated injuries. RESULTS: Intrahospital mortality was 37.5% (N.=3) and mostly due to posttraumatic brain injury (N.=2). Most patients were hemodynamically stable at the time of endovascular repair (N.=6). The median time to surgery was 12 hours (3-48 hours). The endografts used were TAG® (W.L. Gore and Associates, Flagstaff) in three patients, and Valiant® (Medtronic, Santa Rosa, CA) in four. The technical success rate was 100%. In one case, the left subclavian artery was occluded without signs of arm ischemia. There were no cases of paraplegia or stroke related to treatment. No revision procedures were needed during follow-up. CONCLUSION: Endovascular repair shortly after injury seems to be effective and safe with a low associated morbidity and mortality.


Assuntos
Aorta Torácica/lesões , Aorta Torácica/cirurgia , Prótese Vascular , Stents , Ferimentos não Penetrantes/cirurgia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento , Procedimentos Cirúrgicos Vasculares/métodos , Ferimentos não Penetrantes/mortalidade , Adulto Jovem
8.
Angiología ; 64(3): 119-125, mayo-jun. 2012. ilus
Artigo em Espanhol | IBECS | ID: ibc-99420

RESUMO

El aneurisma de aorta abdominal supone una importante causa de mortalidad en nuestra sociedad. Sin embargo, poco conocemos sobre su etiopatogenia. El importante papel de las metaloproteasas y alteraciones genéticas han centrado la mayor parte de los esfuerzos investigadores hasta hoy, pero poco se ha estudiado sobre el origen de esta enfermedad. Para llegar al conocimiento completo de esta, hay que avanzar con nuevas tecnologías que nos muestren el problema desde diferentes prismas. En este sentido, la proteómica como estudio de las proteínas expresadas por el tejido patológico o la epigenética como estudio de la influencia de los factores ambientales sobre los propios genes son técnicas que no han proliferado aún en esta patología, y que sin duda nos van a ayudar a profundizar en ella. Mediante esta revisión se repasan estas nuevas herramientas que invitan a la aventura de la investigación en esta y otras patologías de nuestro ámbito(AU)


Abdominal aortic aneurysm is a major cause of death in our society. However, little is known about its pathogenesis. The important role of metalloproteinases and genetic disorders has been the focus of most research efforts to date, but little has been studied on the origin of this disease. To get the complete knowledge of this, we must move forward with new technologies that show us the problem from different perspectives. In this regard, proteomics as the study of proteins expressed by the diseased tissue, or epigenetics as the study of the influence of environmental factors on the genes themselves, are techniques that are still not widely used in this condition, and would definitely help in increasing our knowledge of it. These new tools that invite adventure of research into this and other diseases in our area are reviewed(AU)


Assuntos
Humanos , Proteômica/tendências , Epigênese Genética , Aneurisma da Aorta Abdominal/diagnóstico , Marcadores Genéticos , Estudos de Associação Genética
9.
Angiología ; 63(4): 151-156, jul.-ago. 2011. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-94367

RESUMO

IntroducciónLos avances en la cirugía endovascular han aportado nuevas opciones terapéuticas en la enfermedad oclusiva del sector femoropoplíteo.ObjetivoEvaluar la eficacia del dispositivo Viabahn® para tratar la enfermedad oclusiva del sector femoropoplíteo.Material y métodosDesde 2005 hasta 2010 se han tratado 30 pacientes con oclusiones/estenosis de la femoral superficial y poplítea supragenicular mediante dispositivo Viabahn®. El seguimiento se ha realizado con datos clínicos, hemodinámicos y ecográficos al mes, a los 3, 6 y 12 meses y, posteriormente, al año.ResultadosSe han tratado 30 pacientes, con una edad media de 69 años (rango: 45-82), que incluyen un 87% de varones (26), 57% de diabéticos(17), 73% de hipertensos (22) y 87% de fumadores (26). Presentaban isquemia crónica en estadio de Fontaine IIb 13,3%, III 46,7% y IV 40%. Las lesiones tratadas fueron TASC II A 16,7% (5), B 60% (18) y C 23,3% (7). Veinticinco (83,3%) eran oclusiones crónicas. La longitud media de la lesión fue de 69mm (rango: 20-150mm). En dos casos se produjeron complicaciones derivadas del procedimiento (una trombosis precoz y una embolización). El seguimiento mediano fue de 16 meses. La permeabilidad primaria fue del 74,7, 65,4 y 56% a los 6, 12 y 24 meses. La permeabilidad primaria asistida fue del 80,7, 75,3, y 64,6% a los 6, 12 y 24 meses. Hubo 7 trombosis tardías (23,3%). La permeabilidad secundaria fue del 84,2, 78,9 y 69% a los 6, 12 y 24 meses.ConclusionesEl tratamiento de las lesiones crónicas del sector femoropoplíteo con endoprótesis tiene aceptables resultados clínicos en pacientes seleccionados. Sin embargo, es necesario un seguimiento estricto para mantener una correcta permeabilidad(AU)


IntroductionAdvances in endovascular therapy have provided new options for treatment of femoropopliteal disease.ObjectiveTo evaluate the safety and efficacy of Viabahn® for the treatment of femoral-popliteal artery disease.Materials and methodsFrom 2005 until 2010, a Viabahn® endoprosthesis was implanted in 30 limbs of 30 patients to treat superficial femoral artery and above-knee occlusive lesions. Follow-up evaluation with ankle-brachial indices and colour flow duplex imaging were performed at 1, 3, 6, 12 months, and then, each year.ResultsA total of 30 patients were treated, with a mean age of 69 years (range 45-82), including 87% (26) male, 57% (17) diabetic, 73% (22) hypertensive, and 87% (26) current or former smokers. Patients had chronic limb ischemia in Fontaine stages IIb 13.3%, III (46.7%), and IV (40%). The treated lesions were TASC II A 16.7% (5), B 60% (18) and C 23.3% (7). There were 25 chronic occlusions (83.3%) and 5 stenoses (16.7%). The average length of treated lesions was 69mm (range 20-150mm). In 2 cases, major complications (1 early thrombosis and 1 thromboembolism) required additional surgery. The mean follow-up was 16 months. The primary patency rates were 74.7%, 65.4%, and 56% at 6, 12 and 24 months. Four restenoses were successfully treated. The assisted primary patency rates were 80.7%, 75.3%, and 64.6% at 6, 12 and 24 months. Late thrombosis was observed in 7 cases (23.3%). The secondary patency rates were 84.2%, 78.9%, and 69% at 6, 12, and 24 months.ConclusionsManagement of femoro-popliteal arterial occlusive lesions with stent-grafts has acceptable clinical results in selected patients. However, strict monitoring is needed, and a high number of reoperations are expected to ensure proper patency(AU)


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Arteriopatias Oclusivas/terapia , Stents Farmacológicos , Isquemia/complicações , Isquemia/diagnóstico , Isquemia Miocárdica/diagnóstico , Estenose da Valva Aórtica/diagnóstico , Estenose da Valva Aórtica/terapia , Estenose da Valva Mitral/terapia
10.
Angiología ; 62(4): 133-139, jul.-ago. 2010. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-84257

RESUMO

Introducción. El avance de las técnicas endovasculares ha proporcionado nuevas opciones en eltratamiento de lesiones complejas en el sector femopoplíteo.Objetivo. Evaluar los resultados del tratamiento endovascular en la patología oclusiva crónicadel sector femoropoplíteo.Material y métodos. Desde febrero de 1997 hasta febrero de 2009 se han incluido todas las oclusionescrónicas limitadas a la arteria femoral superfi cial y primera porción de poplítea intervenidasmediante tratamiento endovascular. Se han analizado la comorbilidad y las variables quepudieron relacionarse con reestenosis y salvación de extremidad. Las modalidades de tratamientohan sido la angioplastia simple y la angioplastia asociada a stent recubierto o norecubierto.Resultados. Durante el periodo de estudio han sido tratados 52 pacientes, con una edad mediade 71,7 años (40-94), 69,2 % varones, 53,8 % diabéticos, 69,2 % fumadores y 67,3 % hipertensos.Las lesiones tratadas (TASC II) fueron: 25 % tipo A, 46,2 % tipo B y 28,8 % tipo C. La longitud mediade la lesión fue de 73,6 mm (20-150). Hubo tres embolizaciones distales peroperatorias y cuatrooclusiones precoces. El seguimiento mediano fue de 18 meses (1-115), basado en datos clínicos,hemodinámicos y ecográfi cos. Permeabilidad primaria (3, 6, 12 y 24 meses, respectivamente):85 %, 76,8 %, 60 % y 52,5 %; primaria asistida: 85 %, 82,3 %, 74 % y 74 %; secundaria: 91,4 %, 86 %,76,4 % y 76,4 %. Ocho oclusiones tardías no pudieron ser recanalizadas, por lo que se realizóbypass (6 casos) y amputación (2 casos).Conclusiones. El tratamiento de lesiones complejas del sector femoropoplíteo, como son lasoclusiones crónicas, mediante técnicas endovasculares es una opción segura y efi caz en pacientesseleccionados(AU)


Introduction. Advances in endovascular techniques have provided new options in the treatmentof complex infrainguinal occlusive lesions.Aims. To evaluate the effectiveness and patency of endovascular treatment in patients withfemoropopliteal occlusive disease.Methods. All patients undergoing endovascular interventions for superfi cial femoral artery andabove knee popliteal artery obstructions between February 1997 and February 2009 wereretrospectively reviewed and assessed for comorbidities, operative and follow-up variablespotentially associated with restenoses and limb salvage.Results. During the study period, 52 patients were treated. Patients were 71.7 years (range40 to 94), 69.2 % male, 53.8 % diabetic, 69.2 % current or former smokers, and 67.3 % hypertensive.Lesions were 28.8 % TASC II C, 46.2 % TASC II B, and 25 % TASC II A. Mean recanalization length was73.6 mm (range 20 to 150 mm). There were three embolizations, and four early thrombosis.Mean follow-up time was 18 months (range 1 to 115), based on clinical, hemodynamic,and ultrasound data. Primary patency rates were 85 %, 76.8 %, 60 % and 52.5 % at 3, 6,12 and 24 months. Ten restenoses were successfully treated. The assisted primary patency rateswere 85 %, 82.3 %, 74 % and 74 % at 3, 6, 12 and 24 months. Eight complete occlusions could notbe reverted by a second recanalization procedure, and were treated by surgical bypass (6 cases)and amputation (2 cases). The secondary patency rates were 91.4 %, 86 %, 76.4 % and 76.4 % at 3,6, 12, and 24 months.Conclusions. Endovascular recanalization is a viable and effective strategy for lower limbrevascularization in selected patients(AU)


Assuntos
Humanos , Arteriopatias Oclusivas/cirurgia , Artéria Femoral/cirurgia , Artéria Poplítea/cirurgia , Angioplastia/métodos , Doença Crônica , Comorbidade , Complicações Pós-Operatórias/epidemiologia
11.
Angiología ; 62(3): 97-102, mayo-jun. 2010. ilus, graf, tab
Artigo em Espanhol | IBECS | ID: ibc-83199

RESUMO

Introducción. Las fístulas arteriovenosas (FAV) autólogas son los mejores accesos vasculares parahemodiálisis debido a su durabilidad y a su bajo porcentaje de complicaciones.Objetivo. Determinar la utilidad de la fl ujometría intraoperatoria como valor pronóstico en lapermeabilidad precoz prehemodiálisis de las FAV nativas.Pacientes y método. Se ha realizado la medición de fl ujos intraoperatorios (FIO) mediante fl ujómetro(Medi-Stim mod. Butterfl y Flowmeter, Noruega) en 204 FAV nativas, 106 radiocefálicas(FAV RC) (52 %) y 98 humerocefálicas (FAV HC) (48 %). Se registraron para su análisis otras variables,como el sexo, la edad, la presencia de diabetes o hipertensión arterial. Se ha valorado lafuncionalidad de la FAV dentro del primer mes, considerándose permeables aquellas que presentabansoplo y/o thrill.Resultados. Permeabilidad precoz global de 94,1 % (192), FAV RC 90,6 % (96) y FAV HC 98 % (96).Curva COR del FIO diastólico FAV RC: área bajo la curva 73,1 % (intervalo de confi anza 95 %, límites:0,58-0,89). Para un valor de 60 ml/min: sensibilidad 81 %, especifi cidad 60 %.Conclusiones. El fl ujo diastólico determinado mediante fl ujometría intraoperatoria muestra unabuena correlación con el pronóstico inicial de las FAV(AU)


Background. Autogenous arteriovenous fi stula (AVF) are the best vascular access for haemodialysis due to its durability and low complication rates. Objective. The purpose of this study is to determine the usefulness of intra-operative blood fl owmeasurement as a prognostic value with respect to pre-haemodialysis patency of the AVF.Patients and methods. Intra-operative blood fl ow (IOF) was measured by ultrasonic transit timeflowmetry (Medi-Stim mod. Butterfly Flowmeter, Norway) in 204 AVFs, 106 radiocephalic(RCAVFs) (52 %) and 98 brachiocephalic (BCAVFs) (48 %). Demographic variables such as sex, age,presence of diabetes or arterial hypertension were analysed. The functionality of the AVF duringthe first month was evaluated, considering as patent those having an audible bruit and/orpalpable thrill.Results. Early patency AVFs 94.1 % (192), RCAVFs 90.6 % (96) and BCAVFs 98 % (96). ROC analysisof the diastolic IOF of RCAVF: area under the curve 73.1 % (95 % confi dence interval: 0.58-0.89).For a value of 60 ml/min: sensitivity 81 %, specifi city 60 %.Conclusions. Diastolic intra-operative blood fl ow measurement shows a good correlation withthe initial outcome of AVF(AU)


Assuntos
Humanos , Reologia/estatística & dados numéricos , Diálise Renal/métodos , Derivação Arteriovenosa Cirúrgica/métodos , Valor Preditivo dos Testes , Cuidados Intraoperatórios/métodos
12.
J Cardiovasc Surg (Torino) ; 42(5): 651-6, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11562595

RESUMO

BACKGROUND: The aim of the present study was to evaluate graft patency and limb salvage rates of popliteo-distal and tibio-tibial bypasses performed for critical ischaemia of the lower limb. METHODS: Thirty short bypasses performed during a five-year period (1994-1998) were reviewed. The inflow source was the supragenicular popliteal artery in 14 patients, the infragenicular popliteal artery in 12 patients and a tibial artery in four patients. Distal outflow was to a pedal vessel in 14 patients, and above the malleolus in 16 patients. Autogenous vein was used as conduit (saphenous vein in 28 patients and cephalic vein in two patients). RESULTS: Operative mortality was 3.3%. Early graft patency and limb salvage rates were 90 and 93%, respectively. Late primary and secondary patency, and limb salvage rates were 77%, 80 and 76% at 12 months, and 71, 74 and 76% at 24 months, respectively. These rates showed no differences attributable to diabetes, inflow or outflow site, surgical technique or slight proximal involvement. There was no progression of disease in the superficial femoral artery, even in the presence of moderate preoperative lesions. CONCLUSIONS: Popliteo-distal and tibio-tibial bypasses are durable procedures which yield good bypass patency and limb salvage rates.


Assuntos
Artérias/cirurgia , Isquemia/cirurgia , Perna (Membro)/irrigação sanguínea , Artéria Poplítea/cirurgia , Idoso , Anastomose Cirúrgica , Prótese Vascular , Distribuição de Qui-Quadrado , Feminino , Artéria Femoral/cirurgia , Humanos , Perna (Membro)/patologia , Perna (Membro)/cirurgia , Masculino , Pessoa de Meia-Idade , Tíbia , Resultado do Tratamento
13.
Clín. cardiovasc ; 18(2): 51-55, mar. 2000. ilus, tab
Artigo em Es | IBECS | ID: ibc-7597

RESUMO

La rotura es una complicación poco frecuente de los aneurismas popliteas. Se presenta el caso de un paciente de 69 años que presenta una rotura de un aneurisma de la arteria poplitea. Se discute la metodología diagnóstica, así como se revisan las diferentes opciones terapéuticas (AU)


Assuntos
Idoso , Masculino , Humanos , Artéria Poplítea/lesões , Aneurisma Roto/diagnóstico , Aneurisma Roto/cirurgia , Ecocardiografia Doppler , Angiografia , Artéria Poplítea/cirurgia , Artéria Poplítea , Veia Safena/cirurgia , Joelho/irrigação sanguínea , Traumatismos do Joelho
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