[Doppler echocardiography and hemodynamic parameters in congenital heart disease with increased pulmonary flow].
نویسندگان
چکیده
BACKGROUND The prediction of pulmonary hemodynamic data from non-invasive assessment could exempt some patients with congenital cardiac septal defects from preoperative invasive assessment (catheterization). OBJECTIVE To determine, in simultaneous assessment, whether data obtained from Doppler echocardiography could predict aspects of pulmonary hemodynamics in such patients. METHODS Echocardiographic parameters related to systolic and systemic pulmonary flow and pulmonary venous flow were related to hemodynamic data in 30 consecutive patients with cardiac septal defects (aged 4 months to 58 years, median 2.2 years, mean pulmonary artery pressure between 16 and 93 mmHg). RESULTS The velocity-time integrals of systolic flow in right ventricle outflow tract (VTI RVOT > or = 22 cm) and pulmonary venous flow (VTI VP > or = 20 cm) predicted PVR/SVR <; 0.1 levels (pulmonary vascular resistance and systemic vascular resistance ratio), with a specificity of 0.81 and odds ratio above 1.0. For VTI RVOT > or = 27 cm and VTI PV > 24 cm values, the specificity was higher than 0.90 and odds ratio 2.29 and 4.47 respectively. The ratio between pulmonary and systemic flows (Qp/Qs > 2.89 and > or = 4.0, echocardiographic estimates) was useful in predicting Qp/Qs > 3.0 values through catheterization (specificity of 0.78 and 0.91, odds ratio 1.14 and 2.97, respectively). CONCLUSION In patients with cardiac septal defects, Doppler echocardiography is able to identify those at increased flow and low pulmonary vascular resistance.
منابع مشابه
Cor Triatriatum Sinistrum Presenting as Cyanotic Congenital Heart Disease A Rare Case Report
Cor triatriatum is an acyanotic congenital heart disease. We present a rare case of cor triatriatum sinistrum in a 6-month-old female infant who was presented with cyanosis and failure to thrive. The 2D transthoracic echocardiography and the Doppler color flow imaging showed a proximal venous chamber communicating to the distal left atrium through restrictive opening to the low-pressure, dis...
متن کاملRight ventricular Hemodynamic Alteration after Pulmonary Valve Replacement in Children with Congenital Heart Disease
Introduction: In patients who underwent surgery to repair Tetralogy of Fallot, right ventricular dilation from pulmonary regurgitation may be result in right ventricular failure, arrhythmias and cardiac arrest. Hence, pulmonary valve replacement may be necessary to reduce right ventricular volume overload. The aim of present study was to assess the effects of pulmonary valve replacement on rig...
متن کاملComparison between M-Mode and Doppler echocardiography in diagnosis
Introduction: Patent ductus arteriosus (PDA) is the persistence of a normal fetal structure between left pulmonary artery and descending aorta. Persistence of this fetal structure beyond 10 days of life is considered abnormal. In this study we compared M-Mode and Doppler echocardiography in diagnosis of PDA in children at Aliasghar Hospital in Zahedan and Children hospital in Bandar Abbas for...
متن کاملEchocardiographic assessment of the pulmonary venous flow. An indicator of increased pulmonary flow in congenital cardiac malformations.
OBJECTIVE To identify the left inferior pulmonary vein as an indirect marker of increased pulmonary flow in congenital heart diseases. METHODS We carried out a prospective consecutive study on 40 patients divided into 2 groups as follows: G1--20 patients diagnosed with congenital heart disease and increased pulmonary flow; G2 (control group)--20 patients who were either healthy or had congeni...
متن کاملIncreased blood velocities in the heart and great vessels of patients with congenital heart disease. An assessment of their significance in the absence of valvar stenosis.
During a previous investigation and during routine clinical Doppler echocardiography velocities distal to normal valves were found to be increased in patients with congenital heart disease. To investigate this observation the velocity proximal and distal to cardiac valves was recorded in 56 patients with congenital heart disease. No detectable pressure gradient had been found across these valve...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Arquivos brasileiros de cardiologia
دوره 94 5 شماره
صفحات -
تاریخ انتشار 2010