Analysis of the signal-averaged P-wave duration in patients with percutaneous coronary angioplasty-induced myocardial ischemia

Myrianthefs, Michael M.; Shandling, Adrian H.; Startt-Selvester, Ronald H.; Bernstein, Seldon E.; Crump, Randy; Lorenz, Linda M.; Switzenberg, Susan; Ellestad, Myrvin H.

doi:10.1016/0002-9149(92)90549-e

Cited by 34 publications

(28 citation statements)

References 17 publications

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“…10 Alterations of P-wave duration have been studied in several clinical settings, such as idiopathic PAF, ischemic heart diseases, after coronary artery bypass surgery, hypertension, and congestive heart failure. [11][12][13][14][15][16] Recently, P-wave dispersion (Pd) has been proposed to be a useful index for identifying the risk for AF in several clinical conditions. 11,15 Thus, in the present study, we investigated whether Pd could be used to discriminate between patients with HCM with and without a history of PAF.…”

Section: Introductionmentioning

confidence: 99%

Detection of patients with hypertrophic cardiomyopathy at risk for paroxysmal atrial fibrillation during sinus rhythm by P‐wave dispersion

Köse

Aytemir

Sade

et al. 2003

Clinical Cardiology

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SummaryBackground: Paroxysmal atrial fibrillation (PAF) in hypertrophic cardiomyopathy (HCM) is associated with poor prognosis. Previous studies have shown good correlation between P-wave dispersion (Pd) and occurrence of PAF. However, Pd in patients with HCM for predicting PAF has not been studied.Hypothesis: The aim of the study was to determine whether Pd could identify patients with HCM who are likely to suffer from PAF.Methods: Twenty-two patients with HCM with a history of PAF (Group 1) and 26 patients with HCM without a history of PAF (Group 2) were studied. Maximum (Pmax) and minimum (Pmin) P-wave durations, as well as P-wave dispersion (Pd = Pmax ϪPmin) were calculated from 12-lead surface electrocardiograms (ECG).Results: P-wave dispersion was significantly different between the groups (Group 1: 55 ± 6 ms vs. Group 2: 37 ± 8 ms; p < 0.001), while Pmax (Group 1: 134 ± 11 ms vs. Group 2: 128 ± 13 ms; p = 0.06) and Pmin (Group 1: 78 ± 9 ms vs. Group 2: 81 ± 7 ms; p = 0.07) was not significantly different. Patients with a history of PAF had higher left atrial diameter than the patients without PAF (Group 1: 52 ± 8 mm vs. Group 2: 48 ± 10 mm; p = 0.02). A cut-off value of 46 ms for Pd had a sensitivity of 76% and a specificity of 82% in discriminating between patients with and without PAF.Conclusion: This study suggests that P-wave dispersion could identify patients with HCM who are likely to develop PAF.

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Section: Introductionmentioning

confidence: 99%

Detection of patients with hypertrophic cardiomyopathy at risk for paroxysmal atrial fibrillation during sinus rhythm by P‐wave dispersion

Köse

Aytemir

Sade

et al. 2003

Clinical Cardiology

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“…In the present study we examine the time course of Pwave duration during exercise and recovery in an attempt to confirm the findings of Myrianthefs et al [1,2] and determine whether P-wave changes occurring during min ute 3 of exercise can further enhance the diagnostic sensi tivity of the Exercise Stress Test (EST). In addition, we sought to determine whether early P-wave changes may be a useful tool for identifying the onset of the 'ischemic cascade', a series of characteristic events believed to occur as exercise increases in patients with significant coronary narrowing [3].…”

Section: Methodsmentioning

confidence: 56%

Time Course of Changes in P-Wave Duration during Exercise

Pandya

Ellestad

Crump³

1996

Cardiology

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The exercise-induced increase in P-wave duration reported previously has not been studied on a minute-by-minute basis. We measured the P duration in 47 normal subjects and 43 coronary artery disease (CAD) patients each minute during an exercise test. We found that prolongation of the P wave in those with CAD occurs relatively early and the difference between normal subjects and CAD patients is greater near maximum exercise. The data suggest that an increase in P-wave duration may reflect an increase in the left-ventricular end-diastolic pressure and may occur earlier that ST-segment depression.

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“…Birçok çalışmada Pd'nin paroksismal atriyal fibrilasyon riskini belirlemede kullanışlı ve basit bir yöntem olduğu belirtilmiştir (23,24) . Diyastolik disfonksiyon, miyokard iskemisi ve akut koroner sendromlu hastalarda P dalga intervalindeki değişiklikler daha önceki çalışmalarda gösterilmiştir (25,26) . Owczuk ve ark.…”

Section: Discussionunclassified

Effects of BURP maneuver over the hemodynamics and QT and P dispersions in ECG in cardiac surgery patients

Demırhan¹,

Bilgi²,

Tekelioğlu³

et al. 2014

GKDA Derg

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ÖZET Amaç: Amacımız koroner arter baypas cerrahisinde laringoskopi ve trakeal entübasyon (TE) sırasında uygulanan "backward upward right-sided pressure" (BURP) manevrasının, QT dispersiyon (OTd), P dispersiyon (Pd) ve hemodinamik yanıt üzerindeki olası etkilerini araştırmaktır. Gereç ve SUMMARY Effects of BURP Maneuver on the Hemodynamics and QT and P Dispersions in ECG in Cardiac Surgery Patients Objective: In this study, we aimed to investigate the possible effects of "backward-upward right-sided pressure" (BURP) maneuver applied during tracheal intubation (TI) in patients who will undergo coronary artery baypas surgery on hemodynamic response and QT dispersion (QTd) and P wave dispersion (Pd). Material and Methods

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Analysis of the signal-averaged P-wave duration in patients with percutaneous coronary angioplasty-induced myocardial ischemia

Cited by 34 publications

References 17 publications

Detection of patients with hypertrophic cardiomyopathy at risk for paroxysmal atrial fibrillation during sinus rhythm by P‐wave dispersion

Detection of patients with hypertrophic cardiomyopathy at risk for paroxysmal atrial fibrillation during sinus rhythm by P‐wave dispersion

Time Course of Changes in P-Wave Duration during Exercise

Effects of BURP maneuver over the hemodynamics and QT and P dispersions in ECG in cardiac surgery patients

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