title: Optimal Transducer Level for Atrial and Pulmonary Arterial Pressure Measurement in Patients with Functional Single Ventricle.
abstract: This study aimed to investigate the optimal transducer level for accurate measurement of atrial and pulmonary arterial pressures in the supine position for patients with functional single ventricle. Contrast-enhanced chest computed tomographic images of 108 patients who underwent either the bidirectional cavopulmonary shunt (BCPS) placement or the Fontan procedure were reviewed. Vertical distances from the skin of the back to the uppermost levels of fluid in the single atrium or the pulmonary artery confluence and their ratios to the greatest anteroposterior (AP) diameter of the thoracic cage were determined. In patients who underwent BCPS, the ratios of the uppermost levels of blood in the atrium and pulmonary artery confluence to the greatest AP diameter of the thorax were 76.0 ± 8.1 and 56.3 ± 5.5 %, respectively. The distance (mm) between these two levels was calculated as 24.2 + 0.31 × age (years) (r2= 0.08, P < 0.03). In patients who underwent the Fontan procedure, the ratios were 79.3 ± 10.0 and 58.3 ± 5.8 %, respectively. The distance (mm) between these two levels was calculated as 31.1 + 0.44 × age (years) (r2= 0.05, P < 0.11). The optimal transducer levels for measuring atrial and pulmonary arterial pressures in the supine position are 75-80 and 55-60 % of the AP diameter of the thorax, respectively, in patients with functional single ventricle. We should consider the difference of the pressure when atrial and pulmonary arterial pressures were measured with the same level of transducers.
authors.affiliation: Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, #102 HeukSeok-ro, DongJak-gu, Seoul, 06973, Republic of Korea.
authors.forename: Yong-Hee
authors.initials: YH
authors.lastname: Park
authors.affiliation: Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, #101 Daehak-no, Jongno-gu, Seoul, 03080, Republic of Korea.
authors.forename: Da-Hye
authors.initials: DH
authors.lastname: Yoo
authors.affiliation: Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, #101 Daehak-no, Jongno-gu, Seoul, 03080, Republic of Korea.
authors.forename: Eun-Hee
authors.initials: EH
authors.lastname: Kim
authors.affiliation: Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, #101 Daehak-no, Jongno-gu, Seoul, 03080, Republic of Korea.
authors.forename: In-Kyung
authors.initials: IK
authors.lastname: Song
authors.affiliation: Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, #101 Daehak-no, Jongno-gu, Seoul, 03080, Republic of Korea.
authors.forename: Ji-Hyun
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, #101 Daehak-no, Jongno-gu, Seoul, 03080, Republic of Korea.
authors.forename: Hee-Soo
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, #101 Daehak-no, Jongno-gu, Seoul, 03080, Republic of Korea.
authors.forename: Woong-Han
authors.initials: WH
authors.lastname: Kim
authors.affiliation: Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, #101 Daehak-no, Jongno-gu, Seoul, 03080, Republic of Korea. jintae73@gmail.com.
authors.forename: Jin-Tae
authors.initials: JT
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D062186:Arterial Pressure / Q000502:physiology; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D005260:Female; D018729:Fontan Procedure / Q000379:methods; D006325:Heart Atria / Q000000981:diagnostic imaging* / Q000601:surgery; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging* / Q000601:surgery; D006352:Heart Ventricles / Q000002:abnormalities* / Q000601:surgery; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007223:Infant; D008297:Male; D011651:Pulmonary Artery / Q000000981:diagnostic imaging* / Q000601:surgery; D012189:Retrospective Studies; D016683:Supine Position; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014159:Transducers
chemical_list: D003287:Contrast Media
keywords: Bidirectional cavopulmonary shunt; Central venous pressure; Congenital heart disease; Fontan procedure; Transducers, Pressure