Transient data stream dissociation in computerized data acquisition system masquerading as a sensing abnormality.

Journal Article (Journal Article)

During testing of a CPI model 1715 ICD, an apparent sensing abnormality was noted following shock delivery for VF. Close inspection of the recording prior to the defibrillation attempt revealed that the surface leads spontaneously lost 848 ms of data while the event marker was unaffected. Computer simulations revealed that an inadequate buffer size for the amplified (surface ECG) data was the likely source of data loss. It is important to recognize that a discordance between surface leads and event marker may represent an abnormality in the data acquisition system and simulate an ICD or lead malfunction.

Full Text

Duke Authors

Cited Authors

  • Nair, LA; Greenfield, RA; Yarger, M; Nibley, C; Wharton, JM

Published Date

  • October 1997

Published In

Volume / Issue

  • 20 / 10 Pt 1

Start / End Page

  • 2500 - 2503

PubMed ID

  • 9358495

Electronic International Standard Serial Number (EISSN)

  • 1540-8159

International Standard Serial Number (ISSN)

  • 0147-8389

Digital Object Identifier (DOI)

  • 10.1111/j.1540-8159.1997.tb06093.x


  • eng