Bispectral Index in a 3-year old undergoing deep hypothermia and circulatory arrest

Luis Zabala, Mohammed Iqbal Ahmed, William T. Denman

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We report a 3-year-old girl who presented with Scimitar syndrome and underwent hypothermic circulatory arrest for correction of anomalous pulmonary veins and an atrial septal defect. In this case the Bispectral Index (BIS) correlated significantly with the gradual onset of hypothermia and circulatory arrest. However, BIS remained low during the rewarming phase of cardiopulmonary bypass, in spite of adequate pump flows and stable haemodynamics. We postulate that this significant lag in BIS during the rewarming phase of deep hypothermic circulatory arrest may represent neuronal bewilderment or perhaps stunning, and differs from previous studies that show significant increase in BIS during rewarming from mild hypothermia.

Original languageEnglish (US)
Pages (from-to)355-359
Number of pages5
JournalPaediatric anaesthesia
Issue number4
StatePublished - Jun 9 2003


  • Bispectral Index
  • Cardiopulmonary bypass
  • Circulatory arrest
  • Hypothermia
  • Scimitar syndrome

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Anesthesiology and Pain Medicine


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