title: Identification of patent foramen ovale during sitting position craniotomy by transesophageal echocardiography with positive airway pressure.
mesh_terms: D000328:Adult; D003399:Craniotomy; D004452:Echocardiography / Q000379:methods*; D004618:Embolism, Air / Q000175:diagnosis*; D005188:False Negative Reactions; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis*; D006801:Humans; D007431:Intraoperative Complications / Q000175:diagnosis; D011175:Positive-Pressure Respiration; D011187:Posture