RESUMO
This study was designed to describe the presence of calcifications according to the clinical features of the diabetic patient and the hemodynamics of the calcified arteries. With this purpose, 197 lower limbs from diabetic patients (type I and II) and carbon-hydrate intolerant patients, were studied. In all of the patients, the pressure ratio leg/arm was measured. On the same way, the arterial flow velocity was recorded using the Doppler ultrasonography on the pedia and postero-tibial arteries. The arterial calcifications, evident on the radiography of the foot, were more frequent between the type I patients and the neuro-infections diabetic foot. According to the hemodynamics point of view, we found a trend of association of more pathologic arterial flow velocity curves with the presence of calcifications (specially on the intima layer). It was also remarkable that an arterial incomprensibility was always associated with arterial calcifications.
Assuntos
Arteriopatias Oclusivas/fisiopatologia , Calcinose/fisiopatologia , Angiopatias Diabéticas/fisiopatologia , Adulto , Arteriopatias Oclusivas/diagnóstico por imagem , Arteriopatias Oclusivas/epidemiologia , Calcinose/diagnóstico por imagem , Calcinose/epidemiologia , Distribuição de Qui-Quadrado , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 2/complicações , Angiopatias Diabéticas/diagnóstico por imagem , Angiopatias Diabéticas/epidemiologia , Pé Diabético/diagnóstico por imagem , Pé Diabético/epidemiologia , Pé Diabético/fisiopatologia , Feminino , Hemodinâmica , Humanos , Perna (Membro)/irrigação sanguínea , Masculino , Pessoa de Meia-Idade , RadiografiaRESUMO
In order to improve the early diagnosis of arterial occlusions, we tried to establish the basis of an automatized system that allowed the study of the hemodynamic features of diabetic patients in the different stadii of their disease. Fifty-four patients with Diabetes Mellitus Type II were included in the study. In all of them, arterial flow curves were carried out at different levels: femoral, popliteal, pedia and tibial posterior arteries of both lower limbs. In the distal arteries of patients with hemodynamic injury, normal values of Maximal Systolic Velocity (Max A), Maximal Diastolic Velocity (Max D), Peurcelot's resistance (PR), pulsatility index (PI) and spectral band (SB), were found.
Assuntos
Arteriopatias Oclusivas/fisiopatologia , Diabetes Mellitus Tipo 2/complicações , Angiopatias Diabéticas/fisiopatologia , Hemodinâmica , Doenças Vasculares Periféricas/fisiopatologia , Arteriopatias Oclusivas/diagnóstico por imagem , Arteriopatias Oclusivas/etiologia , Angiopatias Diabéticas/diagnóstico por imagem , Angiopatias Diabéticas/etiologia , Humanos , Perna (Membro) , Pessoa de Meia-Idade , Doenças Vasculares Periféricas/diagnóstico por imagem , Doenças Vasculares Periféricas/etiologia , UltrassonografiaRESUMO
In order to improve in the early diagnosis of an arterial occlusion, we proposed the bases of an automatized system that allows to recognize the hemodynamic features of diabetic patients in different stadiums of their disease. Fifty-four patients with type-II diabetes were studied. We recorded the arterial flow curves in the bilateral femoral, popliteal, pedia and tibial-posterior arteries from all of our patients. In the distal arteries from patients with hemodynamics disturbances, we found normal values of the variants measured: maximal systolic speed flow (Max A), maximal diastolic speed flow (Max D), Peurcelot's resistance (RP), pulsatility index (PI) and spectral band (SB).
Assuntos
Arteriopatias Oclusivas/fisiopatologia , Angiopatias Diabéticas/fisiopatologia , Doenças Vasculares Periféricas/fisiopatologia , Análise de Variância , Arteriopatias Oclusivas/epidemiologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/fisiopatologia , Angiopatias Diabéticas/epidemiologia , Hemodinâmica , Humanos , Pessoa de Meia-Idade , Doenças Vasculares Periféricas/epidemiologiaRESUMO
The plethysmographic strain gauge venous outflow curves were studied by means of an exponential function. The parameters analyzed made possible the establishment of differences between patients with and without DVT.
Assuntos
Pletismografia/métodos , Tromboflebite/diagnóstico , Humanos , Perna (Membro)/irrigação sanguínea , Matemática , Pessoa de Meia-Idade , Flebografia , Fluxo Sanguíneo Regional , Tromboflebite/fisiopatologia , Veias/fisiopatologiaRESUMO
In order to evaluate the results of the lumbar sympathectomy, we studied 49 patients in the National Institute of Angiology and Vascular Surgery during two years. The hemodynamic tests were performed the day before and one month after the surgical intervention; they included: skin thermometry, measurement of arterial blood flow and resistance in the foot and in the leg, and reactive hyperemia under photoplethysmographic control. Objectively, it could be seen only an increase in the distal skin temperature and an increase of skin blood flow after this treatment.