Qt-related rate-responsive pacing during acute myocardial infarction.
We studied the findings in a patient who had a TX 915 pacemaker and who was suffering from an acute inferior myocardial infarction. On admission, we observed pacing at the upper rate limit due to excessive adrenergic tone. Shortly thereafter a strong vagal reaction occurred, and the pacing rate fell...
| Publicado en: | Pacing & Clinical Electrophysiology Vol. 11; no. 3; pp. 339 - 343 |
|---|---|
| Autores principales: | , , |
| Formato: | case study Journal Article |
| Publicado: |
Wiley-Blackwell
Mar1988
|
| 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=106086952&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106086952 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01478389 4F8 jtl: Pacing & Clinical Electrophysiology issn: 01478389 maglogo: Y pubinfo: dt: Mar1988 vid: 11 iid: 3 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 106086952 2009413016 10.1111/j.1540-8159.1988.tb05014.x NLM2452423 106086952 ppf: 339 ppct: 4 formats: fmt: @attributes: type: P tig: atl: Qt-related rate-responsive pacing during acute myocardial infarction. aug: au: Robbens EJ Clement DL Jordaens LJ sug: subj: Electrocardiography Myocardial Infarction Physiopathology Pacemaker, Artificial Aged Cardiac Pacing, Artificial Male Parasympathetic Nervous System Physiopathology Aged: 65+ years Male ab: We studied the findings in a patient who had a TX 915 pacemaker and who was suffering from an acute inferior myocardial infarction. On admission, we observed pacing at the upper rate limit due to excessive adrenergic tone. Shortly thereafter a strong vagal reaction occurred, and the pacing rate fell back to the lower rate limit. This condition was improved with atropine. Conclusions: (1) In the described condition the TX pacemaker behaved in a very 'physiological' fashion; (2) Sudden strong cholinergic activity lengthened the QT interval; (3) Programming of a steep slope must be avoided in coronary artery disease; (4) Stimulus-T-wave intervals at maximal adrenergic and cholinergic stimulation should be taken into account when programming the slope and the T-wave sensing window. pubtype: Academic Journal doctype: case study Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|