Sandra da Silva Mattos

Learn More
OBJECTIVE To determine if in-hospital mortality after cardiac surgery can be predicted, in children, using a new clinical and surgical index. STUDY DESIGN Observational, retrospective, cross-sectional. METHODS We reviewed 818 charts from children undergoing surgery between January, 2000, and December, 2004. The index was calculated by summing the scores(More)
OBJECTIVE To investigate, both objectively and subjectively, the effect of music on children in a pediatric cardiac intensive care unit following heart surgery, in conjunction with standard care. METHODS Randomized clinical trial with placebo, assessing 84 children, aged 1 day to 16 years, during the first 24 hours of the postoperative period, given a 30(More)
Auscultation is widely applied in clinical activity, nonetheless sound interpretation is dependent on clinician training and experience. Heart sound features such as spatial loudness, relative amplitude, murmurs, and localization of each component may be indicative of pathology. In this study we propose a segmentation algorithm to extract heart sound(More)
BACKGROUND The blood pressure to height ratio (BP:HT) has been proposed as a simple method for identifying children with elevated BP. This procedure shows good accuracy for the screening of hypertension in adolescents but less so in younger children. Our aim in this study was to modify the BP:HT ratio and determine if this change would increase accuracy(More)
OBJECTIVE To determine the frequence and profile of congenital heart defects in Down syndrome patients referred to a pediatric cardiologic center, considering the age of referral, gender, type of heart disease diagnosed by transthoracic echocardiography and its association with pulmonary hypertension at the initial diagnosis. METHODS Cross-sectional study(More)
In this paper, we consider the problem of separating a set of independent components when only one movable sensor is available to record the mixtures. We propose to exploit the quasi-periodicity of the heart signals to transform the signal from this one moving sensor, into a set of measurements, as if from a virtual array of sensors. We then use ICA to(More)
PROBLEM Providing health care for children with congenital heart diseases remains a major challenge in low- and middle-income countries. APPROACH In October 2011, the Government of Paraíba, Brazil, established a paediatric cardiology network in partnership with the nongovernmental organization Círculo do Coração. A cardiology team supervised all network(More)
OBJECTIVE To assess the number of children born with microcephaly in the State of Paraíba, north-east Brazil. METHODS We contacted 21 maternity centres belonging to a paediatric cardiology network, with access to information regarding more than 100 000 neonates born between 1 January 2012 and 31 December 2015. For 10% of these neonates, nurses were(More)