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BCL 600 msec

English translation: BCL (basic cycle lengths)

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14:09 Dec 26, 2003
Dutch to English translations [PRO]
Medical
Dutch term or phrase: BCL 600 msec
Ventricular stimulation - cardiology.
Andre de Vries
United Kingdom
Local time: 14:01
English translation:BCL (basic cycle lengths)
Explanation:
It's already in English... I requested more context to be sure :-)

Good luck
Elena


INTRODUCTION: Atrial fibrillation (AF) and congestive heart failure (CHF) are two clinical entities that often coincide. Our aim was to establish the influence of concomitant high ventricular rate and consequent development of CHF on electrical remodeling and dilation during atrial tachycardia. METHODS AND RESULTS: A total of 14 goats was studied. Five goats were subjected to 3:1 AV pacing (A-paced group, atrial rate 240 beats/min, ventricular rate 80 beats/min). Nine goats were subjected to rapid 1:1 AV pacing (AV-paced group, atrial and ventricular rates 240 beats/min). During 4 weeks, right atrial (RA) and left ventricular (LV) diameters were measured during sinus rhythm. Atrial effective refractory periods (AERP) and inducibility of AF were assessed at three **basic cycle lengths (BCL)**.



INTRODUCTION: Precipitation of torsades de pointes (TdP) has been shown to be associated with acceleration of heart rate in both experimental and clinical studies. To gain insight into the cellular mechanism(s) responsible for the initiation of acceleration-induced TdP, we studied the effect of acceleration of pacing rate in canine left ventricular epicardial, M region, endocardial, and Purkinje fiber preparations pretreated with E-4031, an IKr blocker known to induce the long QT syndrome and TdP. METHODS AND RESULTS: Standard microelectrode techniques were used. E-4031 (1 to 2 microM) induced early after depolarization (EAD) activity in 31 of 36 M cell, 0 of 10 epicardial, 0 of 10 endocardial, and 9 of 12 Purkinje fiber preparations at **basic cycle lengths (BCLs)** > or = 800 msec. In 30 of 36 M cells, sudden acceleration from a BCL range of 900 to 4,000 msec to a range of 500 to 1,500 msec induced transient EAD activity if none existed before or increased the amplitude......
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xxxElena Sgarbo
Grading comment
Thanks again.
4 KudoZ points were awarded for this answer

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Summary of answers provided
5 +1BCL (basic cycle lengths)xxxElena Sgarbo


Discussion entries: 2





  

Answers


34 mins   confidence: Answerer confidence 5/5 peer agreement (net): +1
BCL (basic cycle lengths)


Explanation:
It's already in English... I requested more context to be sure :-)

Good luck
Elena


INTRODUCTION: Atrial fibrillation (AF) and congestive heart failure (CHF) are two clinical entities that often coincide. Our aim was to establish the influence of concomitant high ventricular rate and consequent development of CHF on electrical remodeling and dilation during atrial tachycardia. METHODS AND RESULTS: A total of 14 goats was studied. Five goats were subjected to 3:1 AV pacing (A-paced group, atrial rate 240 beats/min, ventricular rate 80 beats/min). Nine goats were subjected to rapid 1:1 AV pacing (AV-paced group, atrial and ventricular rates 240 beats/min). During 4 weeks, right atrial (RA) and left ventricular (LV) diameters were measured during sinus rhythm. Atrial effective refractory periods (AERP) and inducibility of AF were assessed at three **basic cycle lengths (BCL)**.



INTRODUCTION: Precipitation of torsades de pointes (TdP) has been shown to be associated with acceleration of heart rate in both experimental and clinical studies. To gain insight into the cellular mechanism(s) responsible for the initiation of acceleration-induced TdP, we studied the effect of acceleration of pacing rate in canine left ventricular epicardial, M region, endocardial, and Purkinje fiber preparations pretreated with E-4031, an IKr blocker known to induce the long QT syndrome and TdP. METHODS AND RESULTS: Standard microelectrode techniques were used. E-4031 (1 to 2 microM) induced early after depolarization (EAD) activity in 31 of 36 M cell, 0 of 10 epicardial, 0 of 10 endocardial, and 9 of 12 Purkinje fiber preparations at **basic cycle lengths (BCLs)** > or = 800 msec. In 30 of 36 M cells, sudden acceleration from a BCL range of 900 to 4,000 msec to a range of 500 to 1,500 msec induced transient EAD activity if none existed before or increased the amplitude......


    Reference: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&d...
xxxElena Sgarbo
Native speaker of: Native in SpanishSpanish
PRO pts in pair: 12
Grading comment
Thanks again.

Peer comments on this answer (and responses from the answerer)
agree  Kate Hudson
2 mins
  -> Thanks Kate
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