The Experts below are selected from a list of 810 Experts worldwide ranked by ideXlab platform
C Thery - One of the best experts on this subject based on the ideXlab platform.
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postextrasystolic Sinoatrial exit Block in human sick sinus syndrome demonstration by direct recording of sinus node electrograms
American Heart Journal, 1991Co-Authors: Philippe Asseman, Jean Lekieffre, Bernard Berzin, Didier Desry, Jean Jacques Bauchart, Richard Reade, Olivier Leroy, Pascal Poncelet, C TheryAbstract:Ten patients with sick sinus syndrome having repetitive sinus node electrograms during long postpacing pauses were studied during programmed atrial stimulation. Sinus node activity was recorded using a percutaneous catheter electrode. A sinus node electrogram was recorded before the return atrial beat in seven patients; it was similar to the sinus node electrogram observed during postpacing pauses and is clearly identified because Sinoatrial conduction time was markedly prolonged following the atrial extra beat. Complete Sinoatrial exit Block occurred in four patients. (1) Sinus node electrograms were thus validated both during postpacing pauses and during programmed atrial stimulation in most patients with sick sinus syndrome. (2) Sinoatrial conduction time was markedly prolonged after one extrasystole, accounting for supracompensatory atrial return cycles. (3) If it were cumulative following multiple extrasystoles, this effect could constitute the electrophysiologic link between an abnormal response during programmed atrial stimulation and the complete Sinoatrial Block recorded during the pauses that follow rapid atrial pacing.
Ayhan Korkmaz - One of the best experts on this subject based on the ideXlab platform.
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rarely seen cardiotoxicity of lithium overdose complete heart Block
International Journal of Cardiology, 2009Co-Authors: Mustafa Serinken, Ozgur Karcioglu, Ayhan KorkmazAbstract:Abstract Introduction Serious cardiac toxicity due to lithium toxicity is uncommon and generally only occurs in individuals with underlying heart disease. Cardiac impairment may result in dysrhythmias, including sinus bradycardia, Sinoatrial Block, and first-degree atrioventricular Block. This paper describes a patient with complete AV Block in the course of chronic lithium treatment. Case report Fifty-seven year-old female was brought into the emergency department (ED) due to altered mental status and malaise by ambulance from hospice. She had hypertension, type-II diabetes mellitus, and depression. The caregivers told that she had been fine yesterday, had taken regular medications (lysinopril, furosemid, acetyl salicylic acid, oral antidiabetic tablets and lithium (300 mg tb/day)). Her vital signs were; blood pressure: 70/45 mmHg, pulse: 37 bpm, respiratory rate: 22 bpm, and oxygen saturation 86%. She was confused and unresponsive to verbal stimulation. Her EKG revealed total atrioventricular Block. Initial biochemical results were unremarkable except for a lithium level of 2.2 mmol/l (therapeutic range 0.5–0.8 mmol/l) and an increased creatinine of 2.11 mg/dl. A transvenous pacing electrode was introduced into the right ventricle, which allowed rapid restoration of haemodynamic and neurological status. Her neurologic examination was completely normal in the follow-up period and she was discharged without sequelae. Conclusion In conclusion, emergency physicians should bear in mind that complete AV Block can ensue in the course of lithium toxicity and it is an entity that should be included in the differential diagnosis.
Philippe Asseman - One of the best experts on this subject based on the ideXlab platform.
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postextrasystolic Sinoatrial exit Block in human sick sinus syndrome demonstration by direct recording of sinus node electrograms
American Heart Journal, 1991Co-Authors: Philippe Asseman, Jean Lekieffre, Bernard Berzin, Didier Desry, Jean Jacques Bauchart, Richard Reade, Olivier Leroy, Pascal Poncelet, C TheryAbstract:Ten patients with sick sinus syndrome having repetitive sinus node electrograms during long postpacing pauses were studied during programmed atrial stimulation. Sinus node activity was recorded using a percutaneous catheter electrode. A sinus node electrogram was recorded before the return atrial beat in seven patients; it was similar to the sinus node electrogram observed during postpacing pauses and is clearly identified because Sinoatrial conduction time was markedly prolonged following the atrial extra beat. Complete Sinoatrial exit Block occurred in four patients. (1) Sinus node electrograms were thus validated both during postpacing pauses and during programmed atrial stimulation in most patients with sick sinus syndrome. (2) Sinoatrial conduction time was markedly prolonged after one extrasystole, accounting for supracompensatory atrial return cycles. (3) If it were cumulative following multiple extrasystoles, this effect could constitute the electrophysiologic link between an abnormal response during programmed atrial stimulation and the complete Sinoatrial Block recorded during the pauses that follow rapid atrial pacing.
Mustafa Serinken - One of the best experts on this subject based on the ideXlab platform.
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rarely seen cardiotoxicity of lithium overdose complete heart Block
International Journal of Cardiology, 2009Co-Authors: Mustafa Serinken, Ozgur Karcioglu, Ayhan KorkmazAbstract:Abstract Introduction Serious cardiac toxicity due to lithium toxicity is uncommon and generally only occurs in individuals with underlying heart disease. Cardiac impairment may result in dysrhythmias, including sinus bradycardia, Sinoatrial Block, and first-degree atrioventricular Block. This paper describes a patient with complete AV Block in the course of chronic lithium treatment. Case report Fifty-seven year-old female was brought into the emergency department (ED) due to altered mental status and malaise by ambulance from hospice. She had hypertension, type-II diabetes mellitus, and depression. The caregivers told that she had been fine yesterday, had taken regular medications (lysinopril, furosemid, acetyl salicylic acid, oral antidiabetic tablets and lithium (300 mg tb/day)). Her vital signs were; blood pressure: 70/45 mmHg, pulse: 37 bpm, respiratory rate: 22 bpm, and oxygen saturation 86%. She was confused and unresponsive to verbal stimulation. Her EKG revealed total atrioventricular Block. Initial biochemical results were unremarkable except for a lithium level of 2.2 mmol/l (therapeutic range 0.5–0.8 mmol/l) and an increased creatinine of 2.11 mg/dl. A transvenous pacing electrode was introduced into the right ventricle, which allowed rapid restoration of haemodynamic and neurological status. Her neurologic examination was completely normal in the follow-up period and she was discharged without sequelae. Conclusion In conclusion, emergency physicians should bear in mind that complete AV Block can ensue in the course of lithium toxicity and it is an entity that should be included in the differential diagnosis.
Jean Jacques Bauchart - One of the best experts on this subject based on the ideXlab platform.
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postextrasystolic Sinoatrial exit Block in human sick sinus syndrome demonstration by direct recording of sinus node electrograms
American Heart Journal, 1991Co-Authors: Philippe Asseman, Jean Lekieffre, Bernard Berzin, Didier Desry, Jean Jacques Bauchart, Richard Reade, Olivier Leroy, Pascal Poncelet, C TheryAbstract:Ten patients with sick sinus syndrome having repetitive sinus node electrograms during long postpacing pauses were studied during programmed atrial stimulation. Sinus node activity was recorded using a percutaneous catheter electrode. A sinus node electrogram was recorded before the return atrial beat in seven patients; it was similar to the sinus node electrogram observed during postpacing pauses and is clearly identified because Sinoatrial conduction time was markedly prolonged following the atrial extra beat. Complete Sinoatrial exit Block occurred in four patients. (1) Sinus node electrograms were thus validated both during postpacing pauses and during programmed atrial stimulation in most patients with sick sinus syndrome. (2) Sinoatrial conduction time was markedly prolonged after one extrasystole, accounting for supracompensatory atrial return cycles. (3) If it were cumulative following multiple extrasystoles, this effect could constitute the electrophysiologic link between an abnormal response during programmed atrial stimulation and the complete Sinoatrial Block recorded during the pauses that follow rapid atrial pacing.