Paroxysmal supraventricular tachycardia

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

Synonyms and Keywords:

PSVT, Paroxysmal supraventricular arrhythmia, Paroxysmal attacks tachycardia.

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

There is limited information about the historical perspective of PSVT. In January 1998 the first epidemiologic study of the general population in the USA was published. Catheter-based radiofrequency ablation has improved the treatment of PSVT, since 1980S catheter ablation has improved progressively especially in terms of safety and specificity.

• There is limited information about the historical perspective of PSVT.
• In January 1998 the first epidemiologic study of the general population in the USA was published ^[1].

• Catheter-based radiofrequency ablation has improved the treatment of PSVT by precise ablation of the abnormal accessory pathway.  First catheter ablations were in the early to mid-1980s, since then it has improved progressively especially in terms of safety and specificity ^[2].

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

PSVT may be classified into several sub types based on underlying mechanism of tachycardia and ECG findings. Based on the on the underlying mechanism of tachycardia PSVT can be divided into AV nodal reentry (AVNRT) AV reentry (AVRT), atrial tachycardia, sinoatrial nodal reentrant tachycardia (SANRT), intra atrial reentrant tachycardia (IART), junctional ectopic tachycardia and nonparoxysmal junctional tachycardia. ECG findings include 2 subtypes: Short RP interval tachycardia and long RP interval tachycardia.

• PSVT can be classified based on the underling mechanism and ECG findings.

• PSVT may be classified based on the underlying mechanism of tachycardia into ^{[1][2][3][4][5][6][7]}
  • • AV nodal reentry (AVNRT)
    • AV reentry (AVRT)
    • Atrial tachycardia
    • Sinoatrial nodal reentrant tachycardia (SANRT)
    • Intra atrial reentrant tachycardia (IART)
    • Junctional ectopic tachycardia and nonparoxysmal junctional tachycardia (nonreentrent tachycardia, rare in adults, however represent a common cause of PSVT in children )

• PSVT may be classified based on the ECG appearance into ^[2]:
  • Short RP interval tachycardia ^[3][4][8]:
    • AVNRT
    • AVRT
    • Atrial tachycardia with first-degree AV block
  • Prolonged RP interval tachycardia ^[7][9][10]:
    • Atypical AVNRT (fast-slow)
    • Atrial tachycardia
    • Sinoatrial nodal reentrant tachycardia (SANRT)
    • Permanent junctional reciprocal tachycardia (PJRT)

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

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