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Table 2 Temperature management strategies during CPB

From: Effect of mild hypothermia vs normothermia cardiopulmonary bypass on postoperative bleeding in patients undergoing coronary artery bypass grafting: protocol of a multi-center, randomized, controlled trial

Phase

Mild hypothermia group

Normothermia group

Water temperature setting

Target oxygenator arterial outlet blood temperature

Target core temperature

Water temperature setting

Target oxygenator arterial outlet blood temperature

Target core temperature

Initiation of CPB

NA

NA

NA

NA

NA

NA

Cooling

32–33℃*

32–33℃

32–33℃

35–36℃

35–36℃

35–36℃

Aortic cross-clamping

32–33℃

32–33℃

32–33℃

35–36℃

35–36℃

35–36℃

Rewarming

Gradually adjusting to > 36℃

> 36℃

> 36℃

Gradually adjusting to > 36℃

> 36℃

> 36℃

Opening of the ascending aorta

> 36℃

> 36℃

> 36℃

> 36℃

> 36℃

> 36℃

Cessation of CPB

NA

NA

> 36℃

NA

NA

> 36℃

  1. CPB, cardiopulmonary bypass; NA, not applicable
  2. *In the mild hypothermia group, the water tank temperature is actively adjusted to 32–33 °C, and a gradual decrease in the patient’s core temperature can be observed