Utilization of evidence-based cardiovascular therapies and achievement of therapeutic goals in patients with peripheral artery disease.

INTRODUCTION AND OBJECTIVES: Patients with peripheral artery disease have a high risk of cardiovascular events and death. The rate of prescription of evidence-based cardiovascular therapies and the attainment of therapeutic goals in this population is suboptimal. There are no previous studies evaluating the rate of prescription of these therapies in our country. METHODS: PERIFERICA is a cross-sectional study conducted from May to December 2009 in 440 outpatient clinics of general practitioners, internal medicine, cardiology, vascular surgery, endocrinology, and nephrology specialists throughout Spain. Subjects were included if they were aged ≥45 years and had peripheral artery disease and a blood sample obtained during the previous 6 months. Patients were excluded if they had coronary or cerebrovascular diseases. Clinical and anthropometric variables and blood analysis were obtained in all participants. RESULTS: In total, 4087 patients were included in the study (mean age, 68 years; 74% men). There was a high prevalence of diabetes (50%) and hypertension (90%); 79% of participants received lipid-lowering drugs (76% statins), 85.5% antihypertensive drugs (66% renin-angiotensin blockers) and 83% antithrombotics (75% antiplatelet drugs and 11% anticoagulants). In addition, 30% of subjects had a low-density lipoprotein cholesterol concentration n<100 mg/dL, 29.5% had optimal control of blood pressure, and 74.5% did not smoke. Only 8% had a good control of all of their cardiovascular risk factors. CONCLUSIONS: Although a high percentage of subjects with peripheral artery disease receives adequate treatment with evidence-based preventive therapies, the percentage of subjects with good control of all their risk factors is low.

[Clinical characteristics and in-hospital outcomes of patients with critical leg ischemia: ICEBERG Study]. / Características clínicas y evolución intrahospitalaria de los pacientes con isquemia crítica de miembros inferiores: estudio ICEBERG.

BACKGROUND AND OBJECTIVES: Critical leg ischemia (CLI) is a medical emergency with a high morbidity and mortality. Although its prognosis has improved during the last years, there are no data on its clinical characteristics, treatment and in-hospital prognosis in our country. PATIENTS AND METHOD: 671 patients (81% males, mean age 71.2 years) with atherosclerotic CLI, attended in 46 departments of vascular surgery were included in the study. RESULTS: Participants had a high prevalence of cardiovascular risk factors (72% hypertensive, 27% current smokers, 59% diabetics) and comorbidity (25% coronary heart disease, 18% cerebrovascular disease). 71% had a previous diagnosis of peripheral arterial disease. Upon admission, 71% were referred for revascularization, 5% for direct amputation and 24% for conservative treatment. During hospitalization 22 patients died and 49 were discharged with a major amputation. On multivariate analysis, the only factor associated with the risk of amputation was gangrenous lesions (OR 2.45; IC95% 1.22-4.92). Factors associated with mortality were the presence of chronic renal failure (OR 3.38; IC95% 1.36-8.39) and previous CLI (OR 0.20; IC95% 0.05-0.89). At discharge, 59% received lipid lowering drugs, 70% blood-pressure lowering medications and 85% antiplatelet drugs. CONCLUSION: CLI patients attended in Spanish vascular surgery departments have a low amputation rate and a low hospital mortality. However, and due to their high cardiovascular risk, it is necessary to improve the prescription rate of evidence-based cardiovascular prevention therapies at discharge.

[Similarities and differences among patients with symptomatic atherosclerosis affecting several territories. The AIRVAG cohort (Integral Attention to Global VAscular Risk)]. / Similitudes y diferencias entre los pacientes con aterosclerosis sintomática de distintos territorios. Cohorte AIRVAG (Atención Integral al Riesgo VAscular Global).

BACKGROUND AND OBJECTIVE: Even though atherosclerosis is a systemic disease, few prospective studies have evaluated in a thorough and systematic manner the whole vascular tree in patients with clinical damage of different territories. PATIENTS AND METHOD: Prospective protocolized study of 269 consecutive patients younger than 70, attended because of symptomatic arteriosclerosis of any territory -53% coronary (CHD), 32% cerebrovascular (CVD), 15% peripheral (PVD)-. Patients underwent evaluation of risk factors and their control, systematic non-invasive study of the vascular tree (Doppler-ultrasound) and comparison between groups according to the index territory. RESULTS: Even though all risk factors were represented in the 3 groups, male sex, smoking and diabetes were more frequent in PVD and dyslipemia was more common in CHD (p < 0.05) Abdominal aortic diameter and carotid intima-media thickness were similar for all groups, while the number of carotid plaques was higher in PVD. CHD patients more often presented left ventricular hypertrophy and reduced ejection fraction. PVD patients showed a marked reduction of the ankle-brachial index as well as increased C-reactive protein and homocysteine (p < 0.05). Severe unsuspected vascular lesions were found in 13% of cases (95% confidence interval, 9.5-17.6%). Risk factor control was better for CHD, followed by CVD and PVD, but was globally poor. CONCLUSIONS: The systematic evaluation of the vascular tree detects generalized atherosclerotic lesions, in some cases severe and clinically unsuspected. New markers to identify patients at very high risk are necessary. Peripheral vascular disease identifies a group of patients of particular risk. Risk factor control is deficient, particularly among PVD patients.

[Underrecognized peripheral arterial disease in patients with acute coronary syndrome: prevalence of traditional and emergent cardiovascular risk factors]. / Enfermedad arterial periférica desconocida en pacientes con síndrome coronario agudo: prevalencia y patrón diferencial de los factores de riesgo cardiovascular tradicionales y emergentes.

INTRODUCTION AND OBJECTIVES: Peripheral arterial disease (PAD) frequently coexists with coronary artery disease. Our objective was to determine the prevalence of traditional and emergent cardiovascular risk factors in patients with acute coronary syndrome (ACS), with or without PAD. PATIENTS AND METHOD: A prospective study of 141 consecutive patients (< 70 years old) admitted to our hospital with ACS was performed. PAD was diagnosed when the ankle-brachial index (ABI) was < or = 0.9. Traditional cardiovascular risk factors were evaluated. C-reactive protein, homocysteine, amyloid A, lipoprotein (a), fibrinogen, apolipoprotein A1, and apolipoprotein B100 serum levels, and microalbuminuria were measured. Specific genotypes were also determined. RESULTS: Patients were divided into two groups according to whether PAD was present (37 patients, 26% of total, ACS-PAD group) or absent (104 patients, ACS group). In the ACS-PAD group, patients were older, and diabetes and hypertension were significantly more common. Moreover, levels of C-reactive protein (3.1 mg/L vs 2.18 mg/L; P<.05), homocysteine (11.45 mmol/L vs 9.4 mmol/L; P<.01), amyloid A (5.2 mg/mL vs 3.7 mg/mL; P<.05), and microalbuminuria (4.89 mg/L vs 3.1 mg/L; P<.05) were significantly higher in this group. Logistic regression analysis showed that poorly controlled diabetes (OR = 6.3; 95% CI, 1.1-36.7), time-dependent tobacco exposure (OR = 1.5 per decade; 95% CI, 1.2-2.0), and high pulse pressure (OR = 1.9 per 10 mmHg; 95% CI, 1.3-2.7) were independent predictors of the presence of PAD. CONCLUSIONS: Several traditional and emergent cardiovascular risk factors were more prevalent in patients with acute coronary syndrome and peripheral arterial disease. Moreover, some factors were independent predictors of peripheral arterial disease.

Paravertebral pseudoaneurysm thrombosed after percutaneous thrombin injection.

We present a case of a lumbar pseudoaneurysm in a 62-year-old patient with myelofibrosis (agnogenic myeloid metaplasia). The patient was submitted to two anesthetic infiltrations for lumbar pain and one biopsy of a suspected hematopoietic site. Subsequently, a 4.5 cm lumbar pseudoaneurysm was diagnosed. The pseudoaneurysm was thrombosed with 1 ml (500 IU) thrombin injection with a successful clinical result. We discuss different treatment options along with several issues related to the most frequent complication of this technique, namely, native artery thrombosis.

Abdominal aortic coarctation, renovascular, hypertension, and neurofibromatosis.

Abdominal aortic coarctation and renal artery stenosis associated with neurofibromatosis is an unusual cause of renovascular hypertension in children and young adults. Sustained hypertension despite pharmacological treatment carries significant end-organ deterioration, failure to thrive, and potentially lethal complications. Timely arterial reconstruction can render these children normotensive, allowing normal development and reducing long-term morbidity. Progression of the arterial occlusive process, however, may occur after surgery. Therefore, careful follow-up is mandatory following aortorenal reconstruction in children with neurofibromatosis.

Conservative hemodynamic surgery for varicose veins.

Conservative hemodynamic surgery for varicose veins is a minimally invasive, nonablative technique that preserves the saphenous vein and helps avoid excision of varicosities. It represents a physiologic approach to the surgical treatment of varicose veins based on knowledge of the underlying venous pathophysiology gained through detailed duplex scanning. A change in venous hemodynamics is attained through fragmentation of the blood column by interruption of the refluxing saphenous trunks, closure of the origin of the refluxing varicose branches, and preservation of the communicating veins that drain the incompetent varicose veins into the deep venous system. After surgery, varicose veins regress through a reduction in hydrostatic pressure and efficient emptying of the superficial system by the musculo-venous pump. Obvious advantages of this technique are that it is done in an ambulatory setting, minimizes the risk of surgical complications, and permits a rapid return to full activity. The long-term hemodynamic improvement and recurrence rate of this technique remain to be established.