atrial flutter/potassium

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Computer-guided normal-low versus normal-high potassium control after cardiac surgery: No impact on atrial fibrillation or atrial flutter.

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BACKGROUND This study was designed to determine the effect of 2 different potassium regulation strategies with different targets (within the reference range) on atrial fibrillation (AF) or atrial flutter (AFL) in a cohort of intensive care unit patients after cardiac surgery. METHODS The

[Auricular flutter and potassium. Evidence of circular movement and ectopic foci in clinical cases].

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Electrophysiologic and antiarrhythmic effects of the new class III antiarrhythmic drug KCB-328 in experimental canine atrial flutter.

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BACKGROUND The electrophysiologic and antiarrhythmic effects of a new class III antiarrhythmic drug (KCB-328), a delayed rectifier potassium current (IKr) blocker with minimal reverse use-dependent effect on atrial repolarization, were evaluated in the canine night atrial crush-injury model of

Dofetilide: A new antiarrhythmic agent approved for conversion and/or maintenance of atrial fibrillation/atrial flutter.

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Dofetilide is a new antiarrhythmic agent recently approved for the conversion of and maintenance of sinus rhythm in patients with atrial fibrillation (AF) and atrial flutter (AFl). Dofetilide is a selective class III antiarrhythmic drug which works by selectively blocking the rapid component of the

Ibutilide. A review of its pharmacological properties and clinical potential in the acute management of atrial flutter and fibrillation.

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Ibutilide is the first 'pure' class III antiarrhythmic drug to become available. Its predominant action is prolongation of the myocardial action potential duration. This appears to be achieved by a unique ionic mechanism of action that involves activation of a late inward sodium current and possibly

Dofetilide: a review of its use in atrial fibrillation and atrial flutter.

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Dofetilide is a 'pure' class III antiarrhythmic agent which has demonstrated efficacy in the conversion of atrial fibrillation or flutter to sinus rhythm and the maintenance of sinus rhythm. By blocking the rapid component of the cardiac delayed rectifier potassium current (I(Kr)), dofetilide

Potassium infusion increases the likelihood of conversion of recent-onset atrial fibrillation-A single-blinded, randomized clinical trial.

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The optimal antiarrhythmic management of recent-onset atrial fibrillation (ROAF) or atrial flutter is controversial and there is a considerable variability in clinical treatment strategies. It is not known if potassium infusion has the potential to convert ROAF or atrial flutter to

SD-3212, a new class I and IV antiarrhythmic drug: a potent inhibitor of the muscarinic acetylcholine-receptor-operated potassium current in guinea-pig atrial cells.

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1. By use of patch-clamp techniques, the effects of SD-3212, a novel antiarrhythmic drug, on the calcium current (Ica), the sodium current (INa) and the muscarinic acetylcholine-receptor-operated potassium current (IK.ACh) were examined and compared with those of bepridil in guinea-pig single atrial

[Refralon (niferidil) is a new class III antiarrhythmic agent for pharmacological cardioversion for persistent atrial fibrillation and atrial flutter].

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OBJECTIVE To evaluate the efficacy and safety of refralon (niferidil), a new class III antiarrhythmic agent whose activity is related to the block of delayed rectifying potassium current and to the prolongation of atrial and ventricular action potential and refractory periods, when it is used as an

Tedisamil in a chronic canine model of atrial flutter.

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Tedisamil inhibits several cardiac potassium channels including Ito, Ikr, and the adenosine triphosphate (ATP)-sensitive potassium channel (I(KATP)), which may be important in the initiation and maintenance of atrial arrhythmias. We herein report the efficacy of tedisamil in terminating and

Brugada syndrome masked by ibutilide treatment in a patient with atrial flutter.

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We present a case of Brugada syndrome in a young patient whose typical ECG pattern was 'masked' after ibutilide was administered for atrial flutter cardioversion. Ibutilide, a class III antiarrhythmic agent used for the treatment of atrial fibrillation and flutter, prolongs the action potential

Electrophysiologic and arrhythmogenic effects of the potassium channel agonist BRL 38227 in anesthetized dogs.

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Although potassium channel openers have been demonstrated to induce arterial vasodilation and shortening of the QT interval, the complete in vivo hemodynamic and electrophysiologic profile of these drugs has not been fully established. We evaluated the effects of BRL 38227, the active enantiomer of

Initial serum potassium level in relation to early complications and prognosis in patients with acute myocardial infarction.

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During two years 450 patients with AMI have been treated in the CCU at Serafimerlasarettet. Serum potassium level was determined in 444 patients on admission. Hyperkalaemia was a rare finding associated with a bad state on admission and a poor prognosis. Hypokalaemia was recorded in 15% of the

Atrial flutter secondary to hypokalemia.

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Electrophysiologic studies support significant hypokalemia as a cause of atrial flutter in a patient without manifest heart disease. Atrial flutter, reproducibly initiated and terminated by rapid atrial pacing during hypokalemia, was not inducible after potassium correction. In an individual with

Preoperative serum potassium levels and perioperative outcomes in cardiac surgery patients. Multicenter Study of Perioperative Ischemia Research Group.

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BACKGROUND Although potassium is critical for normal electrophysiology, the association between abnormal preoperative serum potassium level and perioperative adverse events such as arrhythmias has not been examined rigorously. OBJECTIVE To determine the prevalence of abnormal preoperative serum

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