نتایج جستجو برای: sinus bradycardia
تعداد نتایج: 47526 فیلتر نتایج به سال:
AIMS As arrhythmias in the long QT syndrome (LQTS) are triggered by heart rate deceleration or acceleration, we speculated that the sudden bradycardia and subsequent tachycardia that follow adenosine injection would unravel QT changes of diagnostic value in patients with LQTS. METHODS AND RESULTS Patients (18 LQTS and 20 controls) received intravenous adenosine during sinus rhythm. Adenosine ...
Pulmonary embolism (PE) can present with a variety of electrocardiographic findings. Bradycardia is rare finding in acute PE, which typically manifests sinus tachycardia. PE might arise from the physiologic Bezold–Jarisch reflex, describes constellation bradycardia, peripheral vasodilation, and hypotension. We report case woman her 60s who was admitted initially for submassive found to have bra...
We report a first case of refractory several-hour sinus bradycardia, a rare but already described side effect of intramuscular administration of carboprost tromethamine to induce abortion for medical indication in a patient without cardiovascular and other diseases. After administration of atropine sulfate 3x0.5 mg intravenously without effect, the patient‘s sinus rhythm spontaneously normalize...
INTRODUCTION Sinus bradycardia has been reported after administration of pulse dose steroids, although most cases have occurred in children and are asymptomatic. We report a case of acute symptomatic sinus bradycardia due to pulse dose steroids in a woman with multiple sclerosis. Interestingly, this patient also suffered from inappropriate sinus tachycardia due to autonomic involvement of multi...
BACKGROUND AND OBJECTIVES The prognosis and natural history of bradycardia related to drugs such as beta-blockers and non-dihydropyridine calcium channel blockers are not well known. SUBJECTS AND METHODS We retrospectively analyzed 38 consecutive patients (age 69+/-11, 21 women) with drug-related bradycardia (DRB) between March 2005 and September 2007. A drug-associated etiology for the brady...
A 69 year old woman was treated with sotalol (320 mg daily) for intermittent atrial fibrillation. Sotalol was initially well tolerated and reversion to sinus rhythm with sinus bradycardia occurred 4 weeks after initiation of therapy. Shortly thereafter, the patient developed recurrent syncope due to torsade de pointes. This was treated successfully with intravenous magnesium infusion and withdr...
Congenital heart block (CHB) is a conduction abnormality characterized by complete atrioventricular (AV) block. CHB affects fetuses and/or newborn of mothers with autoantibodies reactive with ribonucleoproteins 48-kDa SSB/La, 52-kDa SSA/Ro, and 60-kDa SSA/Ro. We recently established animal models of CHB and reported, for the first time, significant sinus bradycardia preceding AV block. This une...
Left ventricular reflexes have in the past been investigated in anaesthetised animals, generally using an open chest technique. We have studied the degree of bradycardia occurring during coronary arteriography in 200 patients with a view to localising the origin of the ventricular reflexes. We have correlated the decrease of sinus rate with the anatomical distribution and integrity of the coron...
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