title: [Right phrenic nerve palsy in a patient with ventricular septal perforation after acute myocardial infarction].
abstract: A 77-year-old female had acute myocardial infarction and ventricular septal perforation (VSP). An operation was performed 14 days after VSP. During cardiopulmonary bypass, a patch was sutured in place on the left side of the defect under a mild hypothermia with topical cardiac cooling procedure. In the postoperative period, mechanical ventilation was continued with use of pulmonary monitor (CP-100, BICORE). When the patient was weaned of mechanical ventilation, work of breathing increased (WOBp: 1.67 J.l-1) without the change of SaO2, PaO2, PaCO2 and the respiratory state. After extubation, the chest X-ray showed elevated right diaphragmatic level and a diagnosis of unilateral diaphragmatic paralysis was made. Oral intake was started two days after extubation. SpO2 decreased after oral intake, and it was significantly improved by taking a left lateral position. The symptoms disappeared 47 days after the operation. It should be noticed that the rise of endoceliac pressure in the patient who had a unilateral phrenic nerve palsy, affected the SpO2.
authors.affiliation: Department of Anesthesia, Sekishinkai Sayama Hospital.
authors.forename: H
authors.initials: H
authors.lastname: Hino
authors.forename: K
authors.initials: K
authors.lastname: Asano
authors.forename: N
authors.initials: N
authors.lastname: Akasaka
authors.forename: I
authors.initials: I
authors.lastname: Yamanaka
authors.forename: T
authors.initials: T
authors.lastname: Aoki
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D010243:Paralysis / Q000209:etiology* / Q000503:physiopathology; D010523:Peripheral Nervous System Diseases / Q000209:etiology* / Q000503:physiopathology; D010791:Phrenic Nerve; D011183:Postoperative Complications; D012133:Respiratory Paralysis; D018658:Ventricular Septal Rupture / Q000601:surgery*; D014939:Work of Breathing