"The tripartite eponym is derived from the three cardiologists who published the first study case study on eleven patients with this syndrome; Louis Wolff (1898 – 1972), Paul White (1886 – 1973), and John Parkinson (1885 – 1976) 1."
"The tripartite eponym is derived from the three cardiologists who published the first study case study on eleven patients with this syndrome; Louis Wolff (1898 – 1972), Paul White (1886 – 1973), and John Parkinson (1885 – 1976) 1."
"The tripartite eponym is derived from the three cardiologists who published the first study case study on eleven patients with this syndrome; Louis Wolff (1898 – 1972), Paul White (1886 – 1973), and John Parkinson (1885 – 1976) 1."
"The tripartite eponym is derived from the three cardiologists who published the first study case study on eleven patients with this syndrome; Louis Wolff (1898 – 1972), Paul White (1886 – 1973), and John Parkinson (1885 – 1976) 1."
"shortening of the PR interval"
"slight widening of the QRS complex"
"short PR interval, delta wave, slight QRS widening, secondary ST-T changes"
"short PR interval, delta wave, slight QRS widening, secondary ST-T changes"
"shortening of the PR interval"
"normal PR interval lies between 0.12-0.20 seconds"
"slurring of the initial portion of the QRS complex"
"slight widening of the QRS"
"the initial disorganised conduction results in the total duration (normal duration"
"subdivided into two types based on the QRS complex in precordial lead V1"
"type A WPW"
"type B WPW"
"lead V1 has a predominantly negative QRS complex (S or Q wave > R wave)"
"atrial fibrillation with WPW"
"marked variation in R-R intervals, QRS width, and QRS morphology"
"marked variation in R-R intervals, QRS width, and QRS morphology"
"marked variation in R-R intervals, QRS width, and QRS morphology"
"conduction antegrade through the AP to the ventricles, retrograde through the AV node to the atria, then once more through the accessory pathway"
"regularity of the ventricular rate distinguishes this rhythm from atrial fibrillation with WPW"
"short PR interval, no delta wave"
"short PR interval and a delta wave"
"normal (0.12-0.20 seconds) PR interval, delta wave"
"Fetal M mode echocardiography may be used to diagnose the presence of a fetal supraventricular tachycardia, a rare cause of which may be an atrioventricular reciprocating tachycardia (AVRT) due to an accessory pathway. The fetal heart rate in an SVT is usually above 200 beats per minute, with a normal fetal heart rate falling between 120-160 bpm."
"Antegrade conduction down the accessory pathway results in a long R-P interval (time between the peak of the "R" of the QRS and the start of the P wave) on the electrocardiogram; the M-mode correlate of this finding is a short V-A interval 4."
"Antegrade conduction down the accessory pathway results in a long R-P interval (time between the peak of the "R" of the QRS and the start of the P wave) on the electrocardiogram; the M-mode correlate of this finding is a short V-A interval 4."
"The presence of re-entry through an accessory pathway (with fast retrograde conduction and slow antegrade conduction) is considered a likely aetiology when the VA interval is shorter than the AV interval in the presence of a fetal SVT; this may affect choice of therapy and prognosis."
"Mahaim fibres"
"Ebstein anomaly"
"Fetal M mode echocardiography may be used to diagnose the presence of a fetal supraventricular tachycardia, a rare cause of which may be an atrioventricular reciprocating tachycardia (AVRT) due to an accessory pathway. The fetal heart rate in an SVT is usually above 200 beats per minute, with a normal fetal heart rate falling between 120-160 bpm."
Expected headings
"ECG"
"Associations"
"Features depend on whether the patient is in normal sinus rhythm, or presenting with a tachydysrhythmia; three types of tachydysrhythmia occur, all of which abolish the classic "pre-excitation" features found in sinus rhythm 6."
"Features present during a paroxysm of a tachydysrhythmia depend on the pathway taken and the atrial activity present; the three classic presenting rhythms have the following ECG features:"
"Antegrade conduction down the accessory pathway results in a long R-P interval (time between the peak of the "R" of the QRS and the start of the P wave) on the electrocardiogram; the M-mode correlate of this finding is a short V-A interval 4."
"The presence of re-entry through an accessory pathway (with fast retrograde conduction and slow antegrade conduction) is considered a likely aetiology when the VA interval is shorter than the AV interval in the presence of a fetal SVT; this may affect choice of therapy and prognosis."
"The tripartite eponym is derived from the three cardiologists who published the first study case study on eleven patients with this syndrome; Louis Wolff (1898 – 1972), Paul White (1886 – 1973), and John Parkinson (1885 – 1976) 1."
"If the impulse from the sinoatrial (SA) node conducts ("antegrade") through the bypass tract to the ventricles prior to (simultaneously occurring normal conduction) egress from the bundle of His (via the AV node), three features will be evident on the electrocardiogram"
"In 10% of cases multiple accessory pathways coexist. There are three classically described types of pathways, classified based on the anatomical structures which they connect and the resultant features on the electrocardiogram. ECG features in sinus rhythm of the respective pathways include 4:"