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The effect of biphasic waveform tilt in transvenous atrial defibrillation.

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  • Additional Information
    • Subject Terms:
    • Subject Terms:
    • Abstract:
      Atrial defibrillation can be accomplished using low energy shocks and transvenous catheters. The biphasic waveform tilt required to achieve optimal atrial defibrillation thresholds (ADFTs) is, however, not known. The effect of single capacitor biphasic waveform tilt modification on ADET was assessed in 20 patients. Following AF induction the defibrillation pulses were delivered between the catheters positioned in the coronary sinus and the right atrium. The single capacitor biphasic waveform shocks, delivered over the same path ways, consisted of 65% tilt (65/65 biphasic waveform) to produce an overall tilt of 88%, or 50% tilt (50/50 biphasic waveform) to produce on overall tilt of 75%. Although 65/65 biphasic wave form delivers more energy, the shorter duration 50/50 biphasic waveform reduced stored energy ADFT 21%, from 1.34 ± 0.82 J with 65/65 biphasic to 1.06 ± 0.81 J. These differences were not statistically significant. Nine patients had lower ADFT with 50/50 biphasic waveform while five patients had lower ADFT with 65/65 biphasic waveform. Equivalent reduction in ADFT was seen in the remaining six patients. The ADFT was 083 ± 0.65 J when both tilts were considered. In conclusion, biphasic waveform tilt modification may affect the ADFT in an individual patient. The optimal biphasic waveform far ADFT is not known.
    • Journal Subset:
      Allied Health; Biomedical; Double Blind Peer Reviewed; Editorial Board Reviewed; Expert Peer Reviewed; Peer Reviewed; USA
    • ISSN:
      0147-8389
    • MEDLINE Info:
      PMID: NLM9227757 NLM UID: 7803944
    • Publication Date:
      20081219
    • Publication Date:
      20150711
    • Accession Number:
      105716869
  • Citations
    • ABNT:
      SRA J et al. The effect of biphasic waveform tilt in transvenous atrial defibrillation. Pacing & Clinical Electrophysiology, [s. l.], v. 20, n. 6, p. 1613–1618, 1997. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=rzh&AN=105716869. Acesso em: 5 dez. 2020.
    • AMA:
      Sra J, Bremner S, Krum D, et al. The effect of biphasic waveform tilt in transvenous atrial defibrillation. Pacing & Clinical Electrophysiology. 1997;20(6):1613-1618. Accessed December 5, 2020. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=rzh&AN=105716869
    • APA:
      Sra J, Bremner S, Krum D, Dhala A, Blanck Z, Deshpande S, Biehl M, Li H, Jazayeri MR, & Akhtar M. (1997). The effect of biphasic waveform tilt in transvenous atrial defibrillation. Pacing & Clinical Electrophysiology, 20(6), 1613–1618.
    • Chicago/Turabian: Author-Date:
      Sra J, Bremner S, Krum D, Dhala A, Blanck Z, Deshpande S, Biehl M, Li H, Jazayeri MR, and Akhtar M. 1997. “The Effect of Biphasic Waveform Tilt in Transvenous Atrial Defibrillation.” Pacing & Clinical Electrophysiology 20 (6): 1613–18. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=rzh&AN=105716869.
    • Harvard:
      Sra J et al. (1997) ‘The effect of biphasic waveform tilt in transvenous atrial defibrillation’, Pacing & Clinical Electrophysiology, 20(6), pp. 1613–1618. Available at: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=rzh&AN=105716869 (Accessed: 5 December 2020).
    • Harvard: Australian:
      Sra J, Bremner S, Krum D, Dhala A, Blanck Z, Deshpande S, Biehl M, Li H, Jazayeri MR & Akhtar M 1997, ‘The effect of biphasic waveform tilt in transvenous atrial defibrillation’, Pacing & Clinical Electrophysiology, vol. 20, no. 6, pp. 1613–1618, viewed 5 December 2020, .
    • MLA:
      Sra J, et al. “The Effect of Biphasic Waveform Tilt in Transvenous Atrial Defibrillation.” Pacing & Clinical Electrophysiology, vol. 20, no. 6, June 1997, pp. 1613–1618. EBSCOhost, search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=rzh&AN=105716869.
    • Chicago/Turabian: Humanities:
      Sra J, Bremner S, Krum D, Dhala A, Blanck Z, Deshpande S, Biehl M, Li H, Jazayeri MR, and Akhtar M. “The Effect of Biphasic Waveform Tilt in Transvenous Atrial Defibrillation.” Pacing & Clinical Electrophysiology 20, no. 6 (June 1997): 1613–18. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=rzh&AN=105716869.
    • Vancouver/ICMJE:
      Sra J, Bremner S, Krum D, Dhala A, Blanck Z, Deshpande S, et al. The effect of biphasic waveform tilt in transvenous atrial defibrillation. Pacing & Clinical Electrophysiology [Internet]. 1997 Jun [cited 2020 Dec 5];20(6):1613–8. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=rzh&AN=105716869