Calculation of shunt ratio of pulmonary arteriovenous malformation by the 100% oxygen inhalation method with ventilator circuit
Kazuyasu Uryu Ayano Fukuda Takahiro Utsumi Takafumi Kayukawa Kazuya Tsubouchi Taishi Harada
Department of Respiratory Medicine, Japan Community Health Care Organization Kyushu Hospital
A 15-year-old woman presented with an abnormal shadow of the left-sided lower lung field on chest X-ray. She was diagnosed with pulmonary arteriovenous malformation (PAVM) and treated with transcatheter arterial embolization (TAE). There are few reports describing a detailed method for using 100% oxygen inhalation to calculate the shunt ratio of PAVM. Here we report a 100% oxygen inhalation method with ventilator circuit to calculate the shunt ratio. It is easy to perform and may be a useful way to evaluate the degree of severity and therapeutic effects of PAVM.
Pulmonary arteriovenous malformation (PAVM) Shunt ratio 100% oxygen inhalation method Lung perfusion scintigraphy Ventilator circuit
Received 24 Mar 2019 / Accepted 24 Jul 2019
AJRS, 8(6): 415-419, 2019