Aneurysmal subarachnoid hemorrhage (SAH) is an acute neurologic emergency. We report the case of a 48-year-old male with massive SAH caused by ruptured aneurysm vertebrobasilar transition. During urgent craniotomy, due to re-rupture, adenosine was given for flow arrest but no sinus pause observed. Esmolol administered and strategies cerebral protection were implemented. The surgeon able clip pa...

A 41-year-old man presented with dizziness associated with sinus bradycardia and sinus arrest. An attempt to implant a transvenous pacing lead was frustrated by absence of the right superior vena cava. The left superior vena cava persisted and drained via the coronary sinus into the right atrium. Absence of the right superior vena cava may present with symptomatic sinus node dysfunction and may...

A fifty-two-year-old man who had reversible, severe dysfunction of the sinus node during acute phase of aseptic meningitis is reported. A diagnosis of aseptic meningitis was made on the basis of following clinical findings ; moderately high fever, meningeal signs and abnormalities of cerebrospinal fluid such as high pressure, an increase in white cell count, high protein content and negative cu...

Sinoatrial arrest also known as sinus pause occurs when sinoatrial node of the heart transiently ceases to generate the electrical impulse necessary for the myocardium to contract. It may last from 2.0 seconds to several minutes. Etiologies of sinoatrial arrest can be complex and heterogeneous. During rapid eye movement (REM) sleep, sinus arrests unrelated to apnea or hypopnea are very rare and...

Automaticity (postpacing impulse recovery time) of the sinus node or subsidiary pacemakers (or both) was determined by intracardiac recordings and atrial overdrive pacing in three patients with disease of the sinus node. Their electrocardiographic manifestations included sinus bradycardia, sinoatrial block, sinus arrest, afrioventricular junctional rhythm, and atrioventricular dissociation. One...