Download The Sinus Node: Structure, Function, and Clinical Relevance by Jay L. Jordan, Iwao Yamaguchi, William J. Mandel (auth.), PDF

By Jay L. Jordan, Iwao Yamaguchi, William J. Mandel (auth.), Felix I. M. Bonke (eds.)

For the clinician the sinus node is kind of a hidden constitution and in simple terms via oblique review he's in a position to say whatever concerning the functionality of this heart of pacemaker task. The morphologist, besides the fact that, is ready to describe the structural microscopic or even electronmicroscopic positive factors of this constitution. the single drawback is that, once he's entering the image, the tissue is lifeless. The physiologist attempts to enquire the electrophysiological habit of the sinus node. when you consider that there isn't a man or woman prepared to offer his sinus node for learn, he has to do his research on remoted arrangements of animals. although there are many specialists within the box of the sinus node they approximately by no means converse an identical 'language'. accordingly, it used to be my dream to carry all these humans - or at the least a few of them -together on a workshop. I had the sensation that it was once vital to arrange any such assembly with no an viewers yet in basic terms with 'experts'.

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The Sinus Node: Structure, Function, and Clinical Relevance

For the clinician the sinus node is kind of a hidden constitution and basically by way of oblique overview he's in a position to say whatever in regards to the functionality of this middle of pacemaker task. The morphologist, even if, is ready to describe the structural microscopic or even electronmicroscopic positive aspects of this constitution.

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Extra resources for The Sinus Node: Structure, Function, and Clinical Relevance

Sample text

Incidence of secondary pauses in patients with sick sinus syndrome. 05 NS P < om 34 T. pop AND D. FLEISCHMAN CONCLUSION The atrial pacing is an useful method to demask or to confirm the presence of a sick sinus syndrome, disclosing a disturbed sinoatrial response. This disturbed pattern of response is expressed among other things by a prolonged sinus node recovery time. However, the main limitation of this method is the relatively great incidence of either false negative or false positive results, depending upon the used criterium which sets the upper limit"ofthe normal value of the sinus node recovery time.

When changing the pacing site from the right atrium to the right ventricle, slowing down of the sinus rate is minimal (Lange, 1965) or there is an acceleration of the sinus rhythm (Paulay and Damato, 1973). This response pattern is explained by the action of positive chronotropic reflexes, which are induced by the haemodynamic events resulting from the disturbed AV conduction sequence (Paulay and Damato, 1973). 4. The stimulus strength. , 1975). 5. , 1975). 6. The autonomic nervous system plays a crucial role as far as the duration and intensity of the postdrive suppression are concerned.

Cardiac conduction in patients with symptomatic sinus node disease. Circulation 43: 836, 1971. : Electrophysiology and pharmacology of cardiac arrhythmias. IV. Cardiac antiarrhythmic and toxic effects of digitalis. : Clinical spectrum of the sick sinus syndrome. : Spread of excitation from the sinus node. : Evaluation of sinus node function in patients with sinus bradycardia. : Sino-atrial function and atrial refractoriness in patients with sick sinus syndrome. : The sick sinus and failing atrium.

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