caa a22 4500 388115831 CHVBK 20180307125406.0 cr unu---uuuuu 161130e199901 xx s 000 0 eng 10.1017/S104795110000737X doi S104795110000737X pii (NATIONALLICENCE)cambridge-10.1017/S104795110000737X Banding of the pulmonary trunk in preparation for a Fontan operation [Elektronische Daten] Banding of the pulmonary trunk is an important surgical procedure for patients who have con genital cardiac malformations with unrestricted pulmonary flow. We propose a new concept for determining in such circumstances the most appropriate length of the band used to constrict the pulmonary trunk in preparation for a Fontan operation. We studied 14 patients undergoing banding of the pulmonary trunk and measured the following parameters: diameter of aorta, diameter of pulmonary trunk, length of pulmonary arterial band and maximum flow velocity across the banded segment. We calculated an index from our orig inal parameter based on the formula; length of band/(diameter of aorta diameter of pulmonary trunk). The diameter of aorta was 9.5 ± 1.4 mm, and that of the pulmonary trunk was 9.6 ± 2.3 mm. The length of the band was 16.5 ± 3.4 mm, giving a calculated index of 0.188 ± 0.038. The maximum flow velocity was 4.02 ± 0.46 m/s. No correlation was found between the length of the band and body weight, and also no correlation was found between the length of the band and maximum flow velocity. The calculated index had a negative correlation with the maximum velocity of flow across the band (y = -8.13x + 5.56, R = 0.74, p < 0.01). We believe that the proposed index is a useful guide in determining the length of a pulmonary band when preparing patients for a Fontan operation. Copyright © Cambridge University Press 1999 Banding of pulmonary trunk nationallicence Fontan candidates nationallicence pulmonary index nationallicence Doppler echocardiography nationallicence diameters of both great arteries nationallicence Sakamoto Takahiko Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan Harada Yorikazu Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan Takeuchi Takamasa Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan Morishima Katsumasa Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan Satomi Gengi Division of Pediatric Cardiology, and Nagano Children's Hospital, Nagano, Japan Yasukochi Satoshi Division of Pediatric Cardiology, and Nagano Children's Hospital, Nagano, Japan Ohta Yoshinori Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan Cardiology in the Young Cambridge University Press 9/1(1999-01), 49-54 1047-9511 9:1<49 1999 9 CTY https://doi.org/10.1017/S104795110000737X text/html Onlinezugriff via DOI 1 other jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S104795110000737X text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sakamoto Takahiko Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan NATIONALLICENCE 700 1- Harada Yorikazu Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan NATIONALLICENCE 700 1- Takeuchi Takamasa Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan NATIONALLICENCE 700 1- Morishima Katsumasa Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan NATIONALLICENCE 700 1- Satomi Gengi Division of Pediatric Cardiology, and Nagano Children's Hospital, Nagano, Japan NATIONALLICENCE 700 1- Yasukochi Satoshi Division of Pediatric Cardiology, and Nagano Children's Hospital, Nagano, Japan NATIONALLICENCE 700 1- Ohta Yoshinori Division of Cardiovascular Surgery and Nagano Children's Hospital, Nagano, Japan NATIONALLICENCE 773 0- Cardiology in the Young Cambridge University Press 9/1(1999-01), 49-54 1047-9511 9:1<49 1999 9 CTY CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge