Changes in P-wave dispersion and P-wave duration after open heart surgery are associated with the peak incidence of atrial fibrillation.
Heart Lung
; 30(6): 466-71, 2001.
Article
de En
| MEDLINE
| ID: mdl-11723451
ABSTRACT
BACKGROUND:
Increased P-wave dispersion (P-disp) and maximum P-wave duration (P-max) predict the development of atrial fibrillation (AF) in the general population. The present study evaluates the time-dependent relationship of P-disp and P-max after open heart surgery. METHODS ANDRESULTS:
P-disp and P-max were measured in the perioperative period of open heart surgery (one day before surgery through postoperative day 4). Compared with the baseline, P-max decreased immediately after open heart surgery (112.63 +/- 7.4 ms vs 106.9 +/- 8.2 ms, P =.005). An increase in P-disp was observed between postoperative days 1 and 2 (37.5 +/- 6.8 ms vs 43.1 +/- 4.5 ms, P <.05), and postoperative days 1 and 3 (37.5 +/- 6.8 ms vs 44.1 +/- 6.6 ms, P <.05). There was also an increase in the P-max between postoperative day 1 and 3 (103 +/- 8.3 ms vs 110 +/- 7.7 ms, P <.05).CONCLUSIONS:
Nonuniform atrial conduction (P-disp) is greatest on days 2 and 3 after open heart surgery, and the longest atrial conduction time (P-max) is greatest on day 3 after open heart surgery, findings that coincide with the time of greatest risk for AF. (Heart Lung((R)) 2001;30466-71.)
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Complications postopératoires
/
Fibrillation auriculaire
/
Pontage aortocoronarien
Type d'étude:
Incidence_studies
/
Observational_studies
/
Prognostic_studies
Limites:
Aged
/
Female
/
Humans
/
Male
Langue:
En
Journal:
Heart Lung
Année:
2001
Type de document:
Article
Pays d'affiliation:
États-Unis d'Amérique