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Biomedical subjects

A del Río

Publications and source records attributed to A del Río.

At least 19 recordsLinked to original sources
PubMed1994

[Silent myocardial ischemia in patients with transient ischemic attacks].

Given evidence that ischemic heart disease is the most frequent cause of death in patients with cerebrovascular disease, we used ergometrics to screen 80 patients with TIA for silent myocardial ischemia (SMI) at the neurological unit of Hospital Clínico Universitario in Zaragoza, Spain. The patients were compared with a control group of 80 with no signs of heart disease. Neither the patients nor the controls had ever shown clinical signs of coronary ischemia and their baseline electrocardiograms were normal. Stress test results were positive in 25 (31%) of the TIA patients, and in 4 (5%) (p < 0.001) of the controls, showing that the prevalence of SMI is significantly higher in TIA patients than in the general population. Hiperlipidemia (75% testing positive versus 43% negative, p < 0.01) and diabetes (31% testing positive versus 13% negative, p < 0.01) were the risk factors statistically related with a positive stress test.

Adult↗
PubMed1994

[Meta-analysis: its role in clinical decision making in cardiology].

Clinical decision-making in cardiology requires accurate estimates of the efficacy of diagnostic and therapeutic procedures. Defined as the quantitative integration of results from different studies on the same scientific question, meta-analyses are well-suited to summarize the evidence on the efficacy of clinical interventions. Meta-analyses aim at obtaining combined estimates of effect using all relevant information in a systematic fashion, complementing narrative reviews and expert committee reports. In this paper, the advantages and limitations of meta-analyses and their usefulness in clinical decision making in cardiology are illustrated using three recent examples in the literature--i.e., use of beta-blockers in secondary prevention of ischemic heart disease, intravenous streptokinase in acute myocardial infarction and fish intake in primary prevention of cardiovascular mortality. The steps to follow when conducting a meta-analysis are also discussed. Finally, a list of the most important meta-analyses in cardiology published to date is included for easy reference.

Adrenergic beta-Antagonists↗
PubMed1993

[Brucella infective endocarditis on sclerodermic mitral valve. Report of a case].

We report the case of a 67 years old woman diagnosed of CREST syndrome (calcinosis, Raynaud's phenomenon, esophageal dysfunction, sclerodactyly, telangiectasias) variant of generalized scleroderma, that suffered a Brucella endocarditis on mitral valve affected by the primary disease. We examine the cardiac lesions in progressive systemic sclerosis, pointing up the rare involvement of the valves, together with the evolution and treatment of Brucella endocarditis, uncommon entity.

Aged↗
PubMed1993

[Cardiac tamponade as a presentation of primary hypothyroidism in a young woman].

Pericardial effusion (PE) as a hypothyroidism associated sign, is something that can be found with relative frequency; nevertheless, cardiac tamponade (CT) as the first sign of this disease may be considered exceptional especially in young patients. We report a 31 years old woman with clinical symptoms and signs of CT that in the forward workshop was diagnosed of primary hypothyroidism as cause of the CT. We shortly describe the case and review the literature, emphasizing the importance of the knowledge of CT trigger factors in myxedematous PE, as well as its usual benign evolution with hormonal treatment, without recurrences of the CT after pericardiocentesis is performed. This justify a conservative approach, in spite of the slow resolution of the PE what can take as long as 1.5 years.

Adult↗
PubMed1991

[Lipoprotein (a)].

Explore the source record for details and available documents.

Arteriosclerosis↗
PubMed1989

[Silent myocardial ischemia during Holter monitoring in patients with diabetes mellitus].

UNLABELLED: To evaluate the prevalence and characteristics of silent myocardial ischemia in asymptomatic patients with non insulin dependent diabetes mellitus, 50 diabetic patients (24 males, 26 females; mean age +/- SD = 58.3 +/- 6.4 years) with a normal resting electrocardiogram were prospectively studied. The total group underwent 48 hours electrocardiographic Holter monitoring, medical history, physical examination an a test for cardiac autonomic neuropathy. Serum levels of total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides and Hb A1c were determined. An ischemic episode was defined as asymptomatic ST-segment depression greater than or equal to 1 mm, greater than or equal to 1 min. Day-to-day variability was studied. Six hundred and forty one episodes with a total duration of 1,014 minutes of ischemia were recorded in 29 patients (58%). The mean number of episodes in 48 hours per patients was 19.2 +/- 21.9 and the mean time of ischemia over this period was 149 +/- 374 minutes. The average heart rate at the onset of the episodes was 95.2 +/- 8.4 beats per minute. Two hundred and ninety two (45.6%) episodes occurred without heart rate changes and in 349 (54.4%) episodes an increase in heart rate was detected at the onset of the episode. An important day-to-day variability in the number of episodes (73.8 +/- 29.5%) and ischemia duration (76.9 +/- 88.8%) was found. Fifteen patients had no ischemic episodes in either the first or second monitoring day. Silent ischemia was related to higher levels of total cholesterol (p less than 0.05), LDL-cholesterol (p less than 0.05) and Hb A1c (p less than 0.01) and was associated to diabetes complications: retinopathy (p less than 0.001), peripheral vascular disease (p less than 0.01), polyneuropathy (p less than 0.05), nephropathy (p less than 0.05), and impotence (p less than 0.01). Silent ischemia was not associated to abnormal test for cardiac autonomic neuropathy. CONCLUSIONS: prevalence of silent myocardial ischemia during daily activities in asymptomatic diabetic patients is very high (58%). Both an increase in oxygen demand and a decrease in oxygen supply may be involved in its pathophysiology. In diabetic patients silent ischemia is related to the presence of other risk factors for coronary artery disease and to diabetes complications and shows a marked day-to-day variability.

Coronary Disease↗
PubMed1980

[Short-term therapy of atrial fibrillation with an association of digitalis and amiodarone (author's transl)].

Forty patients with organic cardiopathies and permanent atrial fibrillation were divided at random into two similar groups in relation to their diagnoses and ages. Twenty patients were treated with digoxine alone, and the other 20 with digoxine plus amiodarone hydrochloride. Comparison of results from each group showed statistical significant differences (p less than 0.0005) regarding total digoxine dosage and length of treatment. Mechanism of action of this synergia is discussed, and the association of digitalis and amiodarone is recommended to reduce digitalization time in patients with paroxysmal auricular tachycardia.

Adult↗