Peroperative intravasal electrographic control of catheter tip position in access ports placed by venous cut-down technique.
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Catheters, Indwelling↗
Biomedical subjects
J Vijgen
Publications and source records attributed to J Vijgen.
Coronary embolization of the membrane fixing a "Multilink" stent to its delivery balloon.
We report on a case of coronary embolization of an elastic membrane fixing the ACS RX Multilink stent over its balloon, after a successful stent delivery. The membrane was dislodged from the balloon in the ostium of the right coronary artery as the delivery balloon was being pulled back into the guiding catheter. All attempts to retrieve the membrane, to cover it with another stent, or to push it into a terminal segment of the artery to limit the jeopardized myocardial mass were unsuccessful. No CABG was performed because the left coronary system was normal and the procedure occurred 2 months after an incomplete inferior myocardial infarction. There was no increase in cardiac enzymes nor electrocardiographic signs of a new myocardial infarction at discharge or at 1-mo follow-up. It seems preferable to avoid further use of stents tied to their balloons with an intermediary, and possibly detachable, element.
Aged↗
Tachycardia-induced cardiomyopathy secondary to right ventricular outflow tract ventricular tachycardia: improvement of left ventricular systolic function after radiofrequency catheter ablation of the arrhythmia.
INTRODUCTION: Several reports describe development of cardiomyopathies secondary to supraventricular tachycardia. Few reports have described cardiomyopathies secondary to ventricular tachycardia. METHODS AND RESULTS: We describe a patient who presented with dilated cardiomyopathy and repetitive nonsustained monomorphic ventricular tachycardia. Cardiac catheterization showed hemodynamically insignificant coronary artery disease. Radiofrequency ablation of a right ventricular outflow tract ventricular tachycardia resulted in improvement of the left ventricular systolic function and resolution of heart failure symptoms. CONCLUSIONS: This report suggests that right ventricular outflow tract ventricular tachycardia may cause reversible tachycardia-induced cardiomyopathy.
Aged↗
Clinical spectrum of pulmonary tuberculosis in older patients: comparison with younger patients.
We compared the clinical-radiographic presentations of bacteriologically proven tuberculosis in 72 elderly (mean age: 71 yr) and 73 younger patients (mean age: 39 yrs). The tuberculin test (2 TU PPD) was positive in 55% and 92%, respectively. The prevalence of cough, dyspnea, anorexia, and weight loss was higher in the elderly (p less than .05), and night sweats were more prevalent in the younger patients (p less than .01). The radiographic pattern was not different between both groups (p greater than .10): "usual" apicoposterior lesions (with or without other abnormalities) were found in more than 70% of both groups; isolated "unusual" lesions consisted in both groups mainly of anterobasal infiltrations and sometimes of pleural effusions, rounded nodules, or miliary patterns. Yet, initially a wrong diagnosis was made more often in the elderly (p = .05). Malignancy, chronic pulmonary disease, and immunosuppression were more frequently encountered in the elderly (p less than .05), whereas alcoholism and smoking were more frequent in the younger patients (p less than .001). Tuberculosis-related mortality occurred in 6 elderly and 1 younger patient.
Adolescent↗
Isolated intrathoracic tuberculous lymphadenopathy.
We report an 82 yr old man with isolated intrathoracic lymphadenopathy of tuberculous origin, which is an extremely uncommon presentation of tuberculosis especially in elderly Caucasian patients. The diagnosis was suggested by the computerized tomographic (CT)-scan showing central hypodense areas after contrast, and was subsequently proved by mediastinoscopic biopsy with histological and microbiological analysis. The atypical presentation of tuberculosis together with a negative two-step 5 international units of purified protein derivative (IU-PPD) tuberculin skin test and a frequent contact with a cavernous index case points towards a primary infection in this patient.
Aged↗
Chronotropic incompetence: a case report.
Chronotropic incompetence is generally defined as an inadequate heart rate response to exercise, but manifestations can vary. The incidence depends on underlying cardiac pathology and, to a lesser degree, on the cut-off value of the predicted heart rate during exercise. Different pathologies induce chronotropic incompetence. Its presence indicates an adverse outcome and is strongly correlated with coronary artery disease. Treatment consists of rate-responsive pacemakers; dual-sensor, adaptive pacemakers are superior to single-sensor, rate-augmenting pacemakers. This case report illustrates the negative effect of chronotropic incompetence on daily activities and its amelioration by implantation of a rate-responsive pacemaker. (c)2001 by CHF, Inc.
Journal Article↗