1.Successful report of taussig-bing malformation treated by anterior intraventricular tunnel repair.
Kisaburo SAKAMOTO ; Michio YOKOTA ; Inshin KYOKU ; Mitsuru KITANO ; Ichiro SHIMADA
Japanese Journal of Cardiovascular Surgery 1989;18(5):653-658
A 13-month-old girl (BW 4476g) with Taussig-Bing malformation was successfully treated by anterior intraventricular tunnel repair (Patrick-McGoon method). She had large subpulmonary malalignment ventricular septal defect with extreme inflow extension with anteroposterior relationship of the great arteries. Coronary arterial anatomy was a very rare type in that LAD branching from RCA originated from right facing sinus was running just anterior to the aorta and coronary relocation would result in straining and obstructing LAD. Intraventricular tunnel through the VSD to the aorta was tailored by use of a double velour Dacron conduit (14mm in diameter) and inflow extension of VSD was partly closed with a separate flat Dacron patch. LVOTO was not found on echocardiography and good clinical results were obtained at 11 months postoperatively.
2.Stone Attenuation Value and Cross-Sectional Area on Computed Tomography Predict the Success of Shock Wave Lithotripsy.
Michio TANAKA ; Eisuke YOKOTA ; Yoichiro TOYONAGA ; Fumitaka SHIMIZU ; Yoshiyuki ISHII ; Makoto FUJIME ; Shigeo HORIE
Korean Journal of Urology 2013;54(7):454-459
PURPOSE: To identify the parameters on noncontrast computed tomography (NCCT) that best predict the success of shock wave lithotripsy (SWL). MATERIALS AND METHODS: We reviewed the records of 75 patients who underwent SWL for urinary calculi measuring 5 to 20 mm. Using NCCT images, we estimated the largest stone cross-sectional area and contoured the inner edge of the stone. Clinical outcome was classified as successful (stone-free or <4 mm in diameter) or failed (stone fragments, > or =4 mm). The impact of preoperative parameters was evaluated by univariate and multivariate analysis. RESULTS: The overall success rate was 73.3%. Average stone attenuation value, stone length, and stone cross-sectional area in the success and failure groups were 627.4+/-166.5 HU (Hounsfield unit) vs. 788.1+/-233.9 HU (p=0.002), 11.7+/-3.8 mm vs. 14.2+/-3.6 mm (p=0.015), and 0.31+/-0.17 cm2 vs. 0.57+/-0.41 cm2 (p<0.001), respectively. In the multivariate analysis, stone attenuation value was the only independent predictor of SWL success (p=0.023), although stone cross-sectional area had a tendency to be associated with SWL success (p=0.053). Patients were then classified into four groups by using cutoff values of 780 HU for stone attenuation value and 0.4 cm2 for cross-sectional area. By use of these cutoff values, the group with a low stone attenuation value and a low cross-sectional area was more than 11.6 times as likely to have a successful result on SWL as were all other groups (odds ratio, 11.6; 95% confidence interval, 3.9 to 54.7; p<0.001). CONCLUSIONS: Stone attenuation value and stone cross-sectional area are good predictors of extracorporeal SWL outcome.
Humans
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Lithotripsy
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Multivariate Analysis
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Shock
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Treatment Outcome
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Urinary Calculi