[Zasshi] [Journal]. Nihon Kyōbu Geka Gakkai
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Nihon Kyobu Geka Gakkai Zasshi · Feb 1989
Case Reports[The diagnostic value of computed tomography during lymphangiography on the postoperative chylothorax in lung cancer].
A successfully operated case of postoperative chylothorax in a lung cancer was reported, under the diagnosis of computed tomography during lymphangiography demonstrating the disruption of the thoracic duct. The computed tomography during lymphangiography is considered to be very useful for deciding the surgical indication of postoperative chylothorax and prompt surgical treatment is recommended when the main truncus of the thoracic duct is lacerated.
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Nihon Kyobu Geka Gakkai Zasshi · Feb 1989
Comparative Study[Noninvasive and quantitative evaluation of pulmonary regurgitation by pulsed Doppler echocardiography--a study in patients with tetralogy of Fallot after corrective surgery].
A noninvasive and quantitative evaluation of pulmonary regurgitation (PR) using pulsed Doppler echocardiography (PDE) was performed in 25 patients with tetralogy of Fallot (TOF) after corrective surgery. Considering a possibility of the presence of the difference in regurgitant flow velocity in pulmonary artery, four sampling points for detecting the pulmonary regurgitant flow were designed as follows: point 0 was positioned at the right ventricular outflow tract; point 1, at the pulmonary annulus; point 2, at mid-portion of the pulmonary trunk; point 3, at bifurcation of the pulmonary artery. The values of maximum Doppler shift determined by analysing the sonograms recorded at point 1, 2 and 3 were examined in comparison with the grades of PR estimated by pulmonary arteriography and the results obtained were as follows. ⋯ In a prospective study in a separate group of other 7 patients, the grade of PR estimated by PDE corresponded well with these of pulmonary arteriography, with a significant Spearman rank correlation coefficient (rs = 0.90, p less than 0.01). An experimental study using a dog with surgically induced PR of different grades confirmed the presence of higher Doppler shift in pulmonary artery corresponding to the grade of PR. These results indicated the usefulness of a newly proposed method evaluating PR by PDE applying a concept of Windkessel model for PR regurgitant flow.