João Bernardes

ORCID: 0000-0003-4321-2217
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About
Contact & Profiles
Research Areas
  • Neonatal and fetal brain pathology
  • Neonatal Respiratory Health Research
  • Heart Rate Variability and Autonomic Control
  • Non-Invasive Vital Sign Monitoring
  • Neuroscience of respiration and sleep
  • Phonocardiography and Auscultation Techniques
  • Pregnancy and preeclampsia studies
  • Congenital Heart Disease Studies
  • Emergency and Acute Care Studies
  • Reliability and Agreement in Measurement
  • ECG Monitoring and Analysis
  • Global Maternal and Child Health
  • Birth, Development, and Health
  • Cardiac Arrest and Resuscitation
  • Ovarian cancer diagnosis and treatment
  • Meta-analysis and systematic reviews
  • Hemodynamic Monitoring and Therapy
  • Maternal and Neonatal Healthcare
  • Cardiovascular Issues in Pregnancy
  • Endometrial and Cervical Cancer Treatments
  • Fetal and Pediatric Neurological Disorders
  • Ultrasound in Clinical Applications
  • Gynecological conditions and treatments
  • Simulation-Based Education in Healthcare
  • Pregnancy-related medical research

Universidade do Porto
2016-2025

Centre for Health Technology and Services Research
2014-2024

Hospital de São João
2013-2024

Ordem dos Médicos
2015-2022

Centro Hospitalar do Porto
2018

Hospital Pedro Hispano
2014-2017

i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto
2016-2017

Institute of Mechanical Engineering and Industrial Mangement
1998-2016

Technologies pour la Santé
2013

Weatherford College
2011

Objective To describe the latest version of SisPorto, a program for automated analysis cardiotocograms that closely follows FIGO guidelines, analyses ante- and intrapartum tracings, performs no signal reduction, has possibility simultaneously recording twins. Methods A detailed description program's processing algorithms operation is provided, as well main results studies performed to-date with this system. Results Considering both current previous versions program, SisPorto been tested in...

10.1002/1520-6661(200009/10)9:5<311::aid-mfm12>3.0.co;2-9 article EN The Journal of Maternal-Fetal Medicine 2000-01-01

Inter‐observer agreement in the interpretation according to FIGO guidelines of 33 cardiotocographic tracings by experts and subsequent clinical decision was evaluated, using kappa statistic (K) proportions (Pa). Overall classification fair ( K = 0.48 ) better for normal Pa 0.62 ), than suspicious 0.42 or pathologic 0.25 ). on slightly higher 0.59 but mostly centred take ‘no action’ 0.79 Experts especially disagreed over decisions ‘monitor closely’ 0.14 ‘intervene immediately’ 0.38 These...

10.1111/j.1471-0528.1999.tb08187.x article EN BJOG An International Journal of Obstetrics & Gynaecology 1999-12-01

To evaluate whether intrapartum fetal monitoring with computer analysis and real-time alerts decreases the rate of newborn metabolic acidosis or obstetric intervention when compared visual analysis.A randomized clinical trial carried out in five hospitals United Kingdom evaluated women singleton, vertex fetuses 36 weeks gestation greater during labor. Continuous central by online (experimental arm) was (control arm). Fetal blood sampling electrocardiographic ST waveform were available both...

10.1097/aog.0000000000001799 article EN Obstetrics and Gynecology 2016-12-07

AbstractObjective: To describe the latest version of SisPorto, a program for automated analysis cardiotocograms that closely follows FIGO guidelines, analyses ante- and intrapartum tracings, performs no signal reduction, has possibility simultaneously recording twins.Methods: A detailed description program's processing algorithms operation is provided, as well main results studies performed to-date with this system.Results: Considering both current previous versions program, SisPorto been...

10.3109/14767050009053454 article EN The Journal of Maternal-Fetal & Neonatal Medicine 2000-01-01

Cardiotocography (CTG) lacks reliability and reproducibility these problems are believed to be overcome by computer analysis. In this article we describe a system developed for routine clinical automated CTG analysis based on low cost personal computer. Presently the has processed 70 ten minute tracings. Fetal heart rate baseline, acceleration--deceleration detection, long term variability estimation were performed in satisfactory way.

10.1515/jpme.1991.19.1-2.61 article EN Journal of Perinatal Medicine 1991-01-01

Visual analysis of cardiotocograms is poorly reproducible and currently recognized as the main weakness STAN methodology. The Omniview-SisPorto 3.5 program most recent version a central monitoring system that provides visual sound alerts, based on computer cardiotocographic ST event features. This paper describes program's characteristics an overview system's online alerts. first to incorporate computerized features, providing health professionals with alerts for minor major changes in...

10.1515/jpm.2008.030 article EN Journal of Perinatal Medicine 2008-01-01

A osteomielite é uma infecção óssea grave que pode afetar de maneira significativa a qualidade vida dos pacientes. Essa condição ser causada por diversos patógenos, como bactérias, fungos e vírus, resultar em complicações danos no tecido ósseo. O processo patológico envolve invasão bactérias não ósseas, o gera resposta inflamatória local. Isso provoca destruição do osso formação abscessos, comprometendo circulação sanguínea.O diagnóstico feito meio exames imagem, radiografias, ressonância...

10.36557/2674-8169.2025v7n1p1782-1798 article PT cc-by Brazilian Journal of Implantology and Health Sciences 2025-01-22

SisPorto 4.0 is the most recent version of a program for computer analysis cardiotocographic (CTG) signals and ST events, which has been adapted to 2015 International Federation Gynaecology Obstetrics (FIGO) guidelines intrapartum foetal monitoring. This paper provides detailed description performed by system, including signal-processing algorithms involved in identification basic CTG features resulting real-time alerts.

10.3109/14767058.2016.1161750 article EN The Journal of Maternal-Fetal & Neonatal Medicine 2016-03-04

The effect of foetal heart rate (FHR) acquisition mode on linear and nonlinear parameters is still largely unknown. In 33 normal labouring women, FHR signals were acquired simultaneously by an external ultrasound sensor applied to the maternal abdomen internal scalp electrode, in minutes preceding delivery. For each case, initial final 5, 10 20 min segments analysed, considering at a frequency 4 Hz (the which they are transmitted majority commercialized monitors). Several time domain indices...

10.1088/0967-3334/27/3/008 article EN Physiological Measurement 2006-02-06

To evaluate the impact of knowledge neonatal outcome on clinicians' interpretation intrapartum cardiotocograph (CTG).Prospective evaluation pre-recorded cases.Five maternity hospitals.From a database CTGs acquired with scalp electrode in singleton near-term fetuses, 20 tracings were sequentially selected from cases newborn umbilical artery pH < 7.05 and > 7.20.Five experienced obstetricians practising different hospitals asked to analyse 40 individually, according International Federation...

10.1111/j.1471-0528.2011.03003.x article EN BJOG An International Journal of Obstetrics & Gynaecology 2011-05-24

Fetal heart rate monitoring is used for pregnancy surveillance in obstetric units all over the world but spite of recent advances analysis methods, there are still inherent technical limitations that bound its contribution to improvement perinatal indicators. In this work, a previously published wavelet transform based QRS detector, validated standard electrocardiogram (ECG) databases, adapted fetal detection abdominal ECG. Maternal ECG waves were first located using original detector and...

10.1088/0967-3334/35/8/1723 article EN Physiological Measurement 2014-07-29
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