accessory pathway

accessory conduction pathway myocardial fibers that propagate the atrial contraction impulse to the ventricles but are not a part of the normal atrioventricular conducting system; impulses conducted over such a pathway can cause preexcitation (q.v.). See also Kent bundle, under bundle; Mahaim fibers, under fiber; and atriohisian tracts, under tract.

Medical dictionary. 2011.

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  • Mahaim accessory pathway — A Mahaim accessory pathway or atriofascicular accessory pathway is an anatomic connection between the normal atrioventricular (AV) conduction system and the ventricles.[1] References ^ Klein, G.J.; G. Guiraudon, C. Guiraudon and R. Yee (July… …   Wikipedia

  • concealed accessory pathway — an accessory pathway that conducts impulses unidirectionally from the ventricles to the atria; thus it is not associated with preexcitation but can participate in supraventricular tachycardia …   Medical dictionary

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  • Posterior column-medial lemniscus pathway — Originating in peripheral sensory receptors, the posterior column medial lemniscus pathway transmits fine touch and conscious proprioceptive information to the brain. Latin via column …   Wikipedia

  • Wolff-Parkinson-White syndrome — Infobox Disease Name = Wolff Parkinson White syndrome Caption = WPW is a syndrome of pre excitation of the ventricles , shaded in dark blue at the bottom. DiseasesDB = 14186 ICD10 = ICD10|I|45|6|i|30 ICD9 = ICD9|426.7 ICDO = OMIM = 194200… …   Wikipedia

  • Tachycardia — ECG showing sinus tachycardia with a rate of about 100 beats per minute. ICD 10 I47 I …   Wikipedia

  • Supraventricular tachycardia — Classification and external resources Lead II electrocardiogram strip showing SVT with a heart rate of about 150. ICD 10 I …   Wikipedia

  • Lown-Ganong-Levine syndrome — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 7599 ICD10 = ICD10|I|45|6|i|30 ICD9 = ICD9|426.81 ICDO = OMIM = 108950 MedlinePlus = eMedicineSubj = med eMedicineTopic = 2954 MeshID = D008151 Lown Ganong Levine syndrome (LGL) is a syndrome …   Wikipedia

  • Wolff-Parkinson-White syndrome — a congenital abnormality of heart conduction caused by the presence of an extra (accessory) conduction pathway between the atria and ventricles (see atrioventricular bundle). It results in premature excitation of one ventricle and is… …   The new mediacal dictionary

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