Quantitative, Noninvasive Assessment of Patent Ductus Arteriosus Shunt Flow by Measuring Proximal Isovelocity Surface Area on Color Doppler Imaging

Iwashima, Satoru; Ishikawa, Takamichi

doi:10.1253/circj.cj-14-0229

Cited by 3 publications

(7 citation statements)

References 34 publications

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“…In the present study, PDA-VCW was measured using Doppler color flow and PDA-ESOA by using PISA, as previously reported. 16 Color Doppler images of the PDA were optimally obtained from parasternal PDA long-axis views in each infant. The color sector size was approximately 30 degrees, the filter was kept at minimum setting, and the gain level was kept just below that, which produced static noise in the color signal.…”

Section: Patent Ductus Arteriosus Evaluationmentioning

confidence: 99%

“…In the previous calculation of PDA-ESOA by using the PISA method, the peak velocity was used as the PDA velocity 16 ; however, in the present study, we modified the PISA method used to calculate PDA-ESOA. In this study, the measurements of PDA radius and PDA velocity were taken at end diastole, simultaneously with the R-wave of a continuously recorded ECG.…”

Section: Patent Ductus Arteriosus Evaluationmentioning

confidence: 99%

“…10,11 This method has been described in detail for the determination of transvalvular and shunt flow and the calculation of valvular orifice size; in addition, PISA is imaged not only in patients with valvular regurgitation but also in patients with shunts from congenital heart diseases, especially ventricular septal defects. [12][13][14][15][16] We previously reported that the PDA-VCW and PDA-effective shunt orifice area (ESOA) evaluated by PISA significantly correlated with cardiac catheterization findings. In particular, there were clinically useful correlations among PDA-VCW, PDA-ESOA, and cardiac catheterization methods that enable measurement of the pulmonary-to-systemic flow ratio (Qp/Qs).…”

mentioning

confidence: 98%

“…In particular, there were clinically useful correlations among PDA-VCW, PDA-ESOA, and cardiac catheterization methods that enable measurement of the pulmonary-to-systemic flow ratio (Qp/Qs). 16 Our goal was to evaluate the hemodynamic status of PDA in VLBWIs by measuring PDA-VCW and PDA-ESOA, using the PISA on color Doppler imaging.…”

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confidence: 99%

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Quantitative, Noninvasive Assessment of Patent Ductus Arteriosus Shunt Flow by Measuring Proximal Isovelocity Surface Area on Color Doppler Mapping in Very Low-Birth-Weight Infants

Iwashima

Ishikawa

2016

Amer J Perinatol

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Background Our goal was to evaluate the hemodynamic status of very low-birth-weight infants (VLBWIs) with patent ductus arteriosus (PDA) by measuring the vena contracta width (VCW) and effective shunt orifice area (ESOA) using the proximal isovelocity surface area (PISA) on color Doppler imaging. Method and Results In this study, 34 VLBWIs with PDA (median weight: 949 g) were studied. We measured VCW and ESOA using the PISA on echocardiography. PDA-VCW was measured at the narrowest PDA flow region. ESOA determined using PISA (PDA-ESOA) was defined as the hemispheric area of laminar flow with aliased velocities on color Doppler flow imaging: PDA-ESOA = 2π (PDA radius) 2 × aligning velocity/PDA velocity. Of the 34 VLBWIs, 26 received indomethacin (IND) for symptomatic PDA. Comparing echocardiographic parameters between infants who did versus did not receive IND, significant differences were seen in the left atrial-to-aortic root ratio (LA/AO), PDA-VCW, and PDA-ESOA. Receiver operating characteristic curve analysis to differentiate between IND usage status produced statistically significant results for PDA-VCW (area under the curve [AUC] = 0.880), PDA-ESOA (AUC = 0.813), and LA/AO (AUC = 0.769). Conclusion PDA-VCW and PDA-ESOA may allow noninvasive assessment of PDA severity, and are useful when determining the timing of clinical decision making for IND administration.

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Section: Patent Ductus Arteriosus Evaluationmentioning

confidence: 99%

Section: Patent Ductus Arteriosus Evaluationmentioning

confidence: 99%

mentioning

confidence: 98%

mentioning

confidence: 99%

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Quantitative, Noninvasive Assessment of Patent Ductus Arteriosus Shunt Flow by Measuring Proximal Isovelocity Surface Area on Color Doppler Mapping in Very Low-Birth-Weight Infants

Iwashima

Ishikawa

2016

Amer J Perinatol

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“…The color flow width implemented in our study was similar to the measurement of the vena contracta of the PDA flow by Iwashima et al in 2014. These authors stated that measurement of the vena contracta width can noninvasively evaluate the hemodynamic status of PDA 21. The color flow extent of the PDA flow into the pulmonary artery measured as percentage of the total PA length was significantly less in the PDA coil closure group.…”

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confidence: 99%

Echocardiographic predictors of coil vs device closure in patients undergoing percutaneous patent ductus arteriosus closure

2017

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Aim:To determine anatomic and hemodynamic echocardiographic predictors for patent ductus arteriosus (PDA) device vs coil closure. Methods:Seventy-six patients who were referred for elective transcatheter PDA closure were enrolled in the study. All patients underwent full echocardiogram including measurement of the PDA pulmonary end diameter, color flow width and extent, peak and end-diastolic Doppler gradients across the duct, diastolic flow reversal, left atrial dimensions and volume, left ventricular sphericity index, and volumes. Results:The study group was subdivided into 2 subgroups based on the mode of PDA closure whether by coil (n = 42) or device (n = 34). Using univariate analysis there was a highly significant difference between the 2 groups as regard the pulmonary end diameter measured in both the suprasternal and parasternal short-axis views as well as the color flow width and color flow extent (P < .0001). The device closure group had statistically significant higher end-systolic and end-diastolic volumes indexed, left atrial volume, and diastolic flow reversal. Receiver operating characteristic curve analysis showed a pulmonary end diameter cutoff point from the suprasternal view > 2.5 mm and from parasternal short-axis view > 2.61 mm to have the highest balanced sensitivity and specificity to predict the likelihood for device closure (AUC 0.971 and 0.979 respectively). The pulmonary end diameter measured from the suprasternal view was the most independent predictor of device closure.

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Echocardiographic Evaluation of Patent Ductus Arteriosus in Preterm Infants

Arlettaz

2017

Front. Pediatr.

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Patent ductus arteriosus (PDA) is part of the typical morbidity profile of the preterm infant, with a high incidence of 80–90% in extremely low birth weight infants born before 26 weeks of gestation. Whereas spontaneous closure of the ductus arteriosus (DA) is likely in term infants, it is less so in preterm ones. PDA is associated with increased mortality and various comorbidities including cardiac failure, need for respiratory support, bronchopulmonary dysplasia, pulmonary or intracranial hemorrhage, and necrotizing enterocolitis; however, there is no proven causality between these morbidities and the presence of DA. Thus, the indication to close PDA remains highly controversial. This paper focuses on echocardiographic evaluation of PDA in the preterm infant and particularly on the echocardiographic signs of hemodynamic significance.

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Quantitative, Noninvasive Assessment of Patent Ductus Arteriosus Shunt Flow by Measuring Proximal Isovelocity Surface Area on Color Doppler Imaging

Cited by 3 publications

References 34 publications

Quantitative, Noninvasive Assessment of Patent Ductus Arteriosus Shunt Flow by Measuring Proximal Isovelocity Surface Area on Color Doppler Mapping in Very Low-Birth-Weight Infants

Quantitative, Noninvasive Assessment of Patent Ductus Arteriosus Shunt Flow by Measuring Proximal Isovelocity Surface Area on Color Doppler Mapping in Very Low-Birth-Weight Infants

Echocardiographic predictors of coil vs device closure in patients undergoing percutaneous patent ductus arteriosus closure

Echocardiographic Evaluation of Patent Ductus Arteriosus in Preterm Infants

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