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Jugular bulb desaturation during coronary artery surgery: a comparison of off-pump and on-pump procedures

J C Diephuis1, K G M Moons, A N Nierich

  • 1Department of Anaesthesia, University Medical Centre Utrecht, Utrecht, The Netherlands.

British Journal of Anaesthesia
|March 15, 2005
PubMed

Insights

Off-pump coronary artery surgery led to more frequent episodes of poor cerebral oxygenation (jugular bulb desaturation) compared to conventional on-pump surgery. This finding suggests a potential risk to brain oxygenation with the off-pump approach.

Area of Science:

  • Cardiology
  • Neurosurgery
  • Surgical Innovation

Background:

  • Conventional coronary artery bypass surgery (CABG) carries risks of cerebral injury due to cardiopulmonary bypass (CPB) and aortic manipulation.
  • Off-pump coronary artery surgery (OPCAB) aims to mitigate these risks by avoiding CPB.
  • However, OPCAB may affect cerebral oxygenation due to cardiac manipulation.

Purpose of the Study:

  • To compare the incidence of poor global cerebral oxygenation between OPCAB and conventional on-pump CABG.
  • To evaluate jugular bulb desaturation (SjO2 < 50%) as an indicator of cerebral hypoperfusion.

Main Methods:

  • A randomized trial involving 187 patients undergoing either OPCAB or on-pump CABG.
  • Jugular bulb oxygen saturation (SjO2) was monitored during the procedures.
  • Episodes of SjO2 ≤ 50% were compared between the two groups.

Main Results:

  • Data from 175 patients were analyzed.
  • 48% of patients in the OPCAB group experienced jugular bulb desaturation compared to 27% in the on-pump group.
  • The adjusted odds ratio for desaturation in the OPCAB group was 0.39 (95% CI, 0.21-0.73; P<0.01).

Conclusions:

  • Jugular bulb desaturation occurs significantly more frequently during off-pump coronary artery surgery than during conventional on-pump surgery.
  • These findings highlight a potential concern for cerebral oxygenation in OPCAB procedures.
  • Further research may be needed to optimize cerebral perfusion strategies in OPCAB.
Abstract

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