A microcomputer system for on-line study of atrioventricular node accommodation.
An automated on-line programmable stimulator and interval measurement system was developed to study atrioventricular node (AVN) accommodation. This dedicated microcomputer system measures and stores the stimulus-to-His bundle (S-H) interval from His bundle electrogram (HBE) recordings. Interval meas...
| Publicado en: | Pacing & Clinical Electrophysiology Vol. 10; no. 6; pp. 1301 - 1309 |
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| Autores principales: | , , |
| Formato: | Journal Article |
| Publicado: |
Wiley-Blackwell
Nov1987
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106085751&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106085751 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01478389 4F8 jtl: Pacing & Clinical Electrophysiology issn: 01478389 maglogo: Y pubinfo: dt: Nov1987 vid: 10 iid: 6 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 106085751 2009408902 NLM2446277 106085751 ppf: 1301 ppct: 8 formats: fmt: @attributes: type: P tig: atl: A microcomputer system for on-line study of atrioventricular node accommodation. aug: au: Jenkins JR Clemo HF Belardinelli L sug: subj: Atrioventricular Node Physiology Cardiac Pacing, Artificial Computers and Computerization Electrocardiography Equipment and Supplies Heart Conduction System Physiology Microcomputers Online Systems Equipment and Supplies Animals Bundle of HIS Physiology Guinea Pigs Heart Rate Signal Processing, Computer Assisted Software ab: An automated on-line programmable stimulator and interval measurement system was developed to study atrioventricular node (AVN) accommodation. This dedicated microcomputer system measures and stores the stimulus-to-His bundle (S-H) interval from His bundle electrogram (HBE) recordings. Interval measurements for each beat are accurate to within 500 us. This user-controlled system has been used to stimulate at any rate up to 6.5 Hz and to measure intervals up to 125 ms in isolated perfused guinea pig hearts. A built-in timer-reset mechanism prevents failure of the system in the absence of a His potential (i.e., 2:1 AV block). It may be modified for use in clinical studies or other experimental systems and has the ability to measure other physiological intervals. The system provides the precision in pacing and accuracy in the measurement of AVN conduction time that is necessary for meaningful analysis of AVN accommodation and has the simplicity of design and use that is not available in previously described systems. Furthermore, this computer system can be used not only in studies involving AV conduction, but also in any setting where programmed stimulation and interval measurement and recording need to be performed simultaneously. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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