Although power spectra of R-R and P-R intervals in response to random respiration show similar frequency distributions, the way in which dynamic sympathetic regulation contributes to such similarity remains unknown. We estimated the transfer function from sympathetic stimulation to the atrioventricular interval (AV conduction time; T(AV)) with and without constant atrial pacing in seven anesthe...

Because pharmacotherapy is a central component of many critical pathways, pharmacists should take leadership roles in their development, implementation, and assessment. Pharmacists can improve the development of critical pathways by ensuring the evidence-based selection of medications, establishing measures for monitoring patients for drug efficacy and adverse effects, and evaluating the propos...

The success of surgery for supraventricular tachycardia (SVT) is evaluated by a variety of methods in different hospitals. Unfortunately, the predictive values of these methods are not known. We therefore compared the various methods in 261 patients undergoing surgery for SVT at Westmead Hospital since 1981. Surgical outcome was assessed by early tests during the first week after surgery (seria...

Phaeobacter gallaeciensis strain ANG1 represents the dominant member of the bacterial consortium within the reproductive accessory nidamental gland (ANG) of the squid Euprymna scolopes. We present a 4.59-Mb assembly of its genome, which may provide clues as to how it benefits its host.

We analyzed the effect of functional fascicular block (FFB) on ventriculoatrial conduction time (VACT) during orthodromic tachycardia (OT) in 32 patients with single accessory pathway (AP) of the Kent bundle type. The location of AP was left free wall (LFW-AP) in 21 patients, left posteroseptal in 6, right free wall in 2, and right anteroseptal in 3. FFB either alone or in combination with func...

Robert H. Anderson, Siew Yen Ho and Michael L. Rigby Cardiology in the Young / Volume 10 / Issue 01 / January 2000, pp 32 ­ 41 DOI: 10.1017/S1047951100006351, Published online: 19 August 2008 Link to this article: http://journals.cambridge.org/abstract_S1047951100006351 How to cite this article: Robert H. Anderson, Siew Yen Ho and Michael L. Rigby (2000). The morphologic variability in atrioven...

n engl j med 364;21 nejm.org may 26, 2011 1990 resent a diverse genetic pool that allows for adaptation and evolutionary change. Further insight into how these adaptations occur may enhance our ability to predict the emergence of new, more capable bacterial pathogens, the development of more predictive animal models, and the potential identification of critical pathways that might serve as ther...

It is generally accepted that in mammals visual information is sent to the brain along functionally specialized parallel pathways, but whether the mouse visual system uses similar processing strategies is not known. It is important to resolve this issue because the mouse brain provides a tractable system for developing a cellular and molecular understanding of disorders affecting spatiotemporal...

Forty-five patients with the Wolff-Parkinson-White syndrome and reciprocating tachycardia which utilized the atrioventricular (A-V) node for antegrade conduction and an accessory pathway for ventriculo-atrial (retrograde) conduction were studied. The extrastimulus technique in the right atrium and coronary sinus at multiple pacing cycle lengths was used. Three types of "echo zones" were defined...

OBJECTIVE To report retrospectively on the training and subsequent experience of two operators in transseptal ablation of arrhythmias arising in the left atrium and left atrioventricular annulus, to show whether, with adequate training and careful attention to detail, this is a safe and effective technique. SETTING Electrophysiological studies and transseptal procedures were performed in the ...