Embolism, AirCesarean SectionIntraoperative ComplicationsPulmonary EmbolismCraniosynostosesUterine MyomectomyPostureNeurosurgical ProceduresCraniotomyMonitoring, IntraoperativeEmbolism, FatEmbolismAirEmbolism, ParadoxicalIntracranial EmbolismCarbon DioxideIntracranial Embolism and ThrombosisPulmonary ArteryAnesthesia, ObstetricalCesarean Section, RepeatPregnancyEmbolism, Amniotic FluidVeinsAir PollutantsAir PollutionBreech PresentationHyperbaric OxygenationDelivery, ObstetricPneumocephalus