What do systematic reviews say?

PLMA vs tracheal tube

PLMA probably leads to lower episodes of hypoxaemia in PACU < 92% oxygen saturation compared with tracheal tube (moderate certainty).

• Supraglottic airway devices versus tracheal intubation for airway management during general anaesthesia in obese… 2013 · Cochrane Headline outcomes only
  RR 0.27 [0.1, 0.72]
  1 study · 70 participants
  Moderate

PLMA vs tracheal tube

• Supraglottic airway devices versus tracheal intubation for airway management during general anaesthesia in obese… 2013 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 204 participants
  Low