Transcranial cerebral oximetry related to transcranial Doppler after aneurysmal subarachnoid haemorrhage

Research output: Contribution to journalArticle

Abstract

Noninvasive methods for detecting cerebral artery vasospasm, still a serious complication following aneurysmal subarachnoid haemorrhage, are of vital interest. Up-to-date transcranial Doppler ultrasound (TCD) has proved to be sensitive in detecting vasospasm in the middle cerebral artery, but has less accuracy for other cerebral arteries. Transcranial cerebral oximetry (TCCO) is a new non-invasive technique which may increase the reliability for detecting cerebral ischaemia. The purpose of the present study was to evaluate a putative correlation between TCCO and TCD. We examined the two hemispheres in 14 patients with the aim of evaluating a proposed correlation between TCD and TCCO. Analysis of all absolute values (maximum TCD mFV and minimum TCCO saturation, respectively) in all series indicate a correlation between TCCO and TCD, p < 0.01, r = -0.62. All patients with TCD mean flow velocity > 120 cm/s also presented TCCO saturation < 60%. Conversely, all patients with normal TCCO saturation (> or = 63%) presented normal or moderately increased TCD velocities. In clinical neurosurgical practice it is of great interest if a true correlation between TCD and TCCO exists. The present results support the assumption that TCCO may enhance the reliability for detecting cerebral ischaemia after aneurysmal subarachnoid haemorrhage.

Details

Authors
  • A Ekelund
  • Poul Kongstad
  • Hans Säveland
  • Bertil Romner
  • Peter Reinstrup
  • K A Kristiansson
  • Lennart Brandt
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Neurology
  • Anesthesiology and Intensive Care
  • Surgery

Keywords

  • transcranial cerebral oximetry, Subarachnoid haemorrhage, transcranial Doppler ultrasound
Original languageEnglish
Pages (from-to)1029-1036
JournalActa Neurochirurgica
Volume140
Issue number10
Publication statusPublished - 1998
Publication categoryResearch
Peer-reviewedYes