Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 73
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Radiol Med ; 127(7): 788-802, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35608758

RESUMEN

Cardiovascular magnetic resonance (CMR) and computed tomography (CCT) are advanced imaging modalities that recently revolutionized the conventional diagnostic approach to congenital heart diseases (CHD), supporting echocardiography and often replacing cardiac catheterization. Nevertheless, correct execution and interpretation require in-depth knowledge of all technical and clinical aspects of CHD, a careful assessment of risks and benefits before each exam, proper imaging protocols to maximize diagnostic information, minimizing harm. This position paper, written by experts from the Working Group of the Italian Society of Pediatric Cardiology and from the Italian College of Cardiac Radiology of the Italian Society of Medical and Interventional Radiology, is intended as a practical guide for applying CCT and CMR in children and adults with CHD, wishing to support Radiologists, Pediatricians, Cardiologists and Cardiac Surgeons in the multimodality diagnostic approach to these patients. The first part provides a review of the most relevant literature in the field, describes each modality's advantage and drawback, making considerations on the main applications, image quality, and safety issues. The second part focuses on clinical indications and appropriateness criteria for CMR and CCT, considering the level of CHD complexity, the clinical and logistic setting and the operator expertise.


Asunto(s)
Cardiología , Cardiopatías Congénitas , Adulto , Niño , Consenso , Cardiopatías Congénitas/diagnóstico por imagen , Humanos , Espectroscopía de Resonancia Magnética , Radiología Intervencionista , Tomografía Computarizada por Rayos X
2.
Acta Radiol ; 62(3): 334-340, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32475124

RESUMEN

BACKGROUND: T1 mapping is emerging as a powerful tool in cardiac magnetic resonance (CMR) to evaluate diffuse fibrosis. However, right ventricular (RV) T1 mapping proves difficult due to the limited wall thickness in diastolic phase. Several studies focused on systolic T1 mapping, albeit only on the left ventricle (LV). PURPOSE: To estimate intra- and inter-observer variability of native T1 (nT1) mapping of the RV, and its correlations with biventricular and pulmonary function in patients with congenital heart disease (CHD). MATERIAL AND METHODS: In this retrospective, observational, cross-sectional study we evaluated 36 patients with CHD, having undergone CMR on a 1.5-T scanner. LV and RV functional evaluations were performed. A native modified look-locker inversion recovery short-axis sequence was acquired in the systolic phase. Intra- and inter-reader reproducibility were reported as complement to 100% of the ratio between coefficient of reproducibility and mean. Spearman ρ and Mann-Whitney U-test were used to compare distributions. RESULTS: Intra- and inter-reader reproducibility was 84% and 82%, respectively. Median nT1 was 1022 ms (interquartile range [IQR] 1108-972) for the RV and 947 ms (IQR 986-914) for the LV. Median RV-nT1 was 1016 ms (IQR 1090-1016) in patients with EDVI ≤100 mL/m2 and 1100 ms (IQR 1113-1100) in patients with EDVI >100 mL/m2 (P = 0.049). A significant negative correlation was found between RV ejection fraction and RV-nT1 (ρ = -0.284, P = 0.046). CONCLUSION: Systolic RV-nT1 showed a high reproducibility and a negative correlation with RV ejection fraction, potentially reflecting an adaptation of the RV myocardium to pulmonary valve/conduit (dys)-function.


Asunto(s)
Cardiopatías Congénitas/diagnóstico por imagen , Cardiopatías Congénitas/fisiopatología , Función Ventricular Izquierda/fisiología , Función Ventricular Derecha/fisiología , Adolescente , Adulto , Estudios Transversales , Femenino , Cardiopatías Congénitas/complicaciones , Humanos , Imagen por Resonancia Magnética , Masculino , Reproducibilidad de los Resultados , Estudios Retrospectivos , Volumen Sistólico/fisiología , Sístole/fisiología , Adulto Joven
3.
Clin Chem Lab Med ; 58(4): 471-486, 2020 03 26.
Artículo en Inglés | MEDLINE | ID: mdl-31851609

RESUMEN

The early detection of perinatal brain damage in preterm and term newborns (i.e. intraventricular hemorrhage, periventricular leukomalacia and perinatal asphyxia) still constitute an unsolved issue. To date, despite technological improvement in standard perinatal monitoring procedures, decreasing the incidence of perinatal mortality, the perinatal morbidity pattern has a flat trend. Against this background, the measurement of brain constituents could be particularly useful in the early detection of cases at risk for short-/long-term brain injury. On this scenario, the main European and US international health-care institutions promoted perinatal clinical and experimental neuroprotection research projects aimed at validating and including a panel of biomarkers in the clinical guidelines. Although this is a promising attempt, there are several limitations that do not allow biomarkers to be included in standard monitoring procedures. The main limitations are: (i) the heterogeneity of neurological complications in the perinatal period, (ii) the small cohort sizes, (iii) the lack of multicenter investigations, (iv) the different techniques for neurobiomarkers assessment, (iv) the lack of consensus for the validation of assays in biological fluids such as urine and saliva, and (v), the lack of reference curves according to measurement technique and biological fluid. In the present review we offer an up-to-date overview of the most promising developments in the use of biomarkers in the perinatal period such as calcium binding proteins (S100B protein), vasoactive agents (adrenomedullin), brain biomarkers (activin A, neuron specific enolase, glial fibrillary acidic protein, ubiquitin carboxyl-terminal hydrolase-L1) and oxidative stress markers.


Asunto(s)
Biomarcadores/líquido cefalorraquídeo , Lesiones Encefálicas/diagnóstico , Biomarcadores/sangre , Biomarcadores/orina , Femenino , Proteína Ácida Fibrilar de la Glía/sangre , Proteína Ácida Fibrilar de la Glía/líquido cefalorraquídeo , Proteína Ácida Fibrilar de la Glía/orina , Humanos , Atención Perinatal , Embarazo , Subunidad beta de la Proteína de Unión al Calcio S100/sangre , Subunidad beta de la Proteína de Unión al Calcio S100/líquido cefalorraquídeo , Subunidad beta de la Proteína de Unión al Calcio S100/orina , Saliva/metabolismo , Ubiquitina Tiolesterasa/sangre , Ubiquitina Tiolesterasa/líquido cefalorraquídeo , Ubiquitina Tiolesterasa/orina
4.
Cardiol Young ; 30(11): 1572-1587, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33109300

RESUMEN

The recommendations of the Association for European Paediatric and Congenital Cardiology for basic training in paediatric and congenital cardiology required to be recognised as a paediatric cardiologist by the Association for European Paediatric and Congenital Cardiology are described below. Those wishing to achieve more advanced training in particular areas of paediatric cardiology should consult the training recommendations of the different Association for European Paediatric and Congenital Cardiology Working Groups available on the Association for European Paediatric and Congenital Cardiology website (www.aepc.org) and the respective publications 1-6. The development of training requirements is the responsibility of the Educational Committee and the Association for European Paediatric and Congenital Cardiology Council in collaboration with the Working Groups of the Association for European Paediatric and Congenital Cardiology. Trainees should be exposed to all aspects of general paediatric and congenital cardiology from fetal life to adolescence and adulthood. Centres performing generalised and specialised work in paediatric and congenital cardiology should be committed to deliver postgraduate training. At each training institute, trainers should be appointed to supervise and act as mentors to the trainees. Association for European Paediatric and Congenital Cardiology will provide basic teaching courses to supplement the training process.


Asunto(s)
Cardiología , Cardiopatías Congénitas , Adolescente , Adulto , Niño , Humanos
5.
Clin Chem Lab Med ; 57(7): 1017-1025, 2019 06 26.
Artículo en Inglés | MEDLINE | ID: mdl-30753152

RESUMEN

Background Perinatal asphyxia is a major cause of mortality and morbidity in neonates: The aim of the present study was to investigate, by means of longitudinal assessment of urinary S100B, the effectiveness of hypothermia, in infants complicated by perinatal asphyxia and hypoxic-ischemic encephalopathy. Methods We performed a retrospective case-control study in 108 asphyxiated infants, admitted to nine tertiary departments for neonatal intensive care from January 2004 to July 2017, of whom 54 underwent hypothermia treatment and 54 did not. The concentrations of S100B protein in urine were measured using an immunoluminometric assay at first urination and 4, 8, 12, 16, 20, 24, 48, 72, 96, 108 and 120 h after birth. The results were correlated with the achievement of S100B levels within normal ranges at 72 h from hypothermia treatment. Routine laboratory parameters, longitudinal cerebral function monitoring, cerebral ultrasound and neurologic patterns were assessed according to standard protocols. Results Higher S100B concentrations were found in hypothermia-treated infants in both moderate (up to 12 h) and severe (up to 24 h) hypoxic-ischemic encephalopathy. S100B levels returned to normal ranges starting from 20 h of hypothermia treatment in moderate and from 36 h in severe hypoxic-ischemic encephalopathy. Conclusions The present results offer additional support to the usefulness of longitudinal neuro-biomarkers monitoring in asphyxiated infants treated by hypothermia. The pattern of S100B concentrations during hypothermia supports the need for further investigations aimed at reconsidering the time-window for patient recruitment and treatment, and the optimal duration of the cooling and rewarming phases of the hypothermia procedure.


Asunto(s)
Asfixia/patología , Hipotermia Inducida , Subunidad beta de la Proteína de Unión al Calcio S100/orina , Biomarcadores/orina , Encéfalo/fisiología , Estudios de Casos y Controles , Electroencefalografía , Femenino , Humanos , Hipoxia-Isquemia Encefálica/patología , Inmunoensayo , Recién Nacido , Masculino , Estudios Retrospectivos , Índice de Severidad de la Enfermedad
6.
Acta Paediatr ; 108(6): 1036-1041, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30461055

RESUMEN

AIM: Near-infrared spectroscopy (NIRS) has been proposed to provide reliable information concerning brain oximetry and tissue activation level in the perinatal period. We aimed to investigate whether NIRS brain patterns in healthy preterm (PT) and term (T) infants were gender- and gestational age (GA)-dependent. METHODS: We conducted an observational study in 74 newborns, from consecutive singleton pregnancies, of whom 37 were born at term (male: n = 19 female: n = 18) and 37 (male: n = 18 female: n = 19) were PT. Cerebral oximetry (crSO2 ) and fractional tissue oxygen extraction (cFTOE), were recorded on the 5th day from birth. RESULTS: crSO2 was significantly higher and cFTOE lower (p < 0.001, for both) in the PT female than male group. At term, crSO2 was significantly higher and cFTOE lower (p < 0.001, for both) in males. crSO2 (male: R = 0.84, p < 0.001; female: R = 0.74, p < 0.001) and cFTOE (male: R = 0.72, p < 0.001; female: R = 0.72, p < 0.001) in male and female groups correlated positively with GA at recording. CONCLUSION: Different brain oximetry between males and females in PT a T infants, may suggest that in the perinatal period brain development is gender- and time-dependent. Data support the use of NIRS as a feasible tool for non-invasive cerebral monitoring.


Asunto(s)
Encéfalo/metabolismo , Oximetría , Factores de Edad , Estudios de Cohortes , Femenino , Edad Gestacional , Humanos , Recién Nacido , Recien Nacido Prematuro , Masculino , Factores Sexuales , Espectroscopía Infrarroja Corta , Nacimiento a Término
7.
Molecules ; 24(18)2019 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-31487945

RESUMEN

Background: To evaluate the effectiveness/side-effects of osteopathic manipulation treatment (OMT) performed on the 7th post-natal day, on cerebro-splanchnic oximetry, tissue activation and hemodynamic redistribution in late preterm (LP) infants by using near infrared spectroscopy (NIRS). Methods: Observational pretest-test study consisting in a cohort of 18 LPs who received OMT on the 7th post-natal day. NIRS monitoring was performed at three different time-points: 30 min before (T0), (30 min during (T1) and 30 min after OMT (T2). We evaluated the effects of OMT on the following NIRS parameters: cerebral (c), splanchnic (s) regional oximetry (rSO2), cerebro-splanchnic fractional tissue oxygen extraction (FTOE) and hemodynamic redistribution (CSOR). Results: crSO2 and cFTOE significantly (P < 0.001) improved at T0-T2; srSO2 significantly (P < 0.001) decreased and sFTOE increased at T0-T1. Furthermore, srSO2 and sFTOE significantly improved at T1-T2. Finally, CSOR significantly (P < 0.05) increased at T0-T2. Conclusions: The present data show that OMT enhances cerebro-splanchnic oximetry, tissue activation and hemodynamic redistribution in the absence of any adverse clinical or laboratory pattern. The results indicate the usefulness of further randomized studies in wider populations comparing the effectiveness of OMT with standard rehabilitation programs.


Asunto(s)
Circulación Cerebrovascular , Osteopatía , Oximetría , Circulación Esplácnica , Adulto , Análisis de los Gases de la Sangre , Femenino , Humanos , Recién Nacido , Masculino , Osteopatía/métodos , Oximetría/métodos , Oxígeno/metabolismo , Espectroscopía Infrarroja Corta
8.
Radiol Med ; 123(5): 331-337, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29357037

RESUMEN

PURPOSE: To validate a blood-threshold (BT) segmentation software for cardiac magnetic resonance (CMR) cine images in patients with functional univentricular heart (FUH). MATERIALS AND METHODS: We evaluated retrospectively 44 FUH patients aged 25 ± 8 years (mean ± standard deviation). For each patient, the epicardial contour of the single ventricle was manually segmented on cine images by two readers and an automated BT algorithm was independently applied to calculate end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), ejection fraction (EF), and cardiac mass (CM). Aortic flow analysis (AFA) was performed on through-plane images to obtain forward volumes and used as a benchmark. Reproducibility was tested in a subgroup of 24 randomly selected patients. Wilcoxon, Spearman, and Bland-Altman statistics were used. RESULTS: No significant difference was found between SV (median 57.7 ml; interquartile range 47.9-75.6) and aortic forward flow (57.4 ml; 48.9-80.4) (p = 0.123), with a high correlation (r = 0.789, p < 0.001). Intra-reader reproducibility was 86% for SV segmentation, and 96% for AFA. Inter-reader reproducibility was 85 and 96%, respectively. CONCLUSION: The BT segmentation provided an accurate and reproducible assessment of heart function in FUH patients.


Asunto(s)
Cardiopatías Congénitas/diagnóstico por imagen , Ventrículos Cardíacos/anomalías , Ventrículos Cardíacos/diagnóstico por imagen , Interpretación de Imagen Asistida por Computador/métodos , Imagen por Resonancia Magnética/métodos , Validación de Programas de Computación , Adolescente , Adulto , Algoritmos , Niño , Femenino , Humanos , Aumento de la Imagen/métodos , Masculino , Reproducibilidad de los Resultados , Estudios Retrospectivos
9.
Molecules ; 23(2)2018 Feb 09.
Artículo en Inglés | MEDLINE | ID: mdl-29425149

RESUMEN

BACKGROUND: Dietary polyphenols, including phytoestrogens are abundantly present in a balanced diet. Evidence for their role in preventing non-communicable diseases is emerging. METHODS: We examined the association between estimated habitual intakes of dietary phytoestrogens and hypertension in a cohort study. The baseline data included 1936 men and women aged 18 years and older. Intakes of total phytoestrogens, isoflavones, and lignans were calculated from validated food frequency questionnaire. Data on the polyphenols content in foods were retrieved from the Phenol-Explorer database. RESULTS: Individuals in the highest quartile of dietary phytoestrogens intake were less likely to be hypertensive (OR: 0.66, 95% CI: 0.44-0.98); moreover, the association showed a significant decreasing trend. Isoflavones and lignans were not associated with lower odds of hypertension; however, some individual compounds, such as biochanin A and pinoresinol showed an independent inverse association with hypertension. CONCLUSIONS: Dietary phytoestrogens are associated with lower likelihood of hypertension in adults living in the Mediterranean area. Future studies are needed to confirm the present findings (i.e., prospective cohort studies) and to better understand the mechanisms underlying such associations.


Asunto(s)
Hipertensión/fisiopatología , Fitoquímicos/administración & dosificación , Fitoestrógenos/administración & dosificación , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Ingestión de Energía , Genisteína/administración & dosificación , Humanos , Isoflavonas/administración & dosificación , Lignanos/administración & dosificación , Masculino , Región Mediterránea , Persona de Mediana Edad , Polifenoles/administración & dosificación , Medición de Riesgo , Adulto Joven
10.
Europace ; 19(9): 1542-1548, 2017 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-27738072

RESUMEN

AIMS: Supraventricular arrhythmias are a major cause of morbidity and mortality in adult patients with congenital heart disease (CHD). Intraoperative ablation offers an alternative for patients who failed ablation procedures or are requiring concomitant surgical intervention. We present our long-term results with the surgical treatment of arrhythmias in adults with CHD (ACHD) undergoing elective cardiac surgery and the clinical predictors for arrhythmia recurrence. METHODS AND RESULTS: Between 2002 and 2013, 80 consecutive patients with CHD, mean age of 39 years, underwent intraoperative ablation with monopolar irrigated radiofrequency during cardiac surgery procedures. Significant clinical predictors of arrhythmia recurrence were determined by univariate analysis. We performed 47 right-sided Maze procedures, and 33 Cox-Maze III procedures. In 75 survivors, the ablation was effective immediately. Over an average follow-up period of 72 months (12-155 months), arrhythmias recurred in nine (20%) patients after right-sided Maze, and in six (19%) patients after Cox-Maze III. Eleven patients were controlled with medical therapy, three underwent catheter ablation of the arrhythmia, and one required a permanent pacemaker. Preoperative arrhythmia length ≥3 years (P ≤ 0.001), tetralogy of Fallot (P ≤ 0.006), and preoperative atrial fibrillation (P ≤ 0.016) were associated with recurrence arrhythmia. Conversely, NYHA class <3 (P ≤ 0.047) was associated with a lower risk of recurrence. CONCLUSION: Surgical treatment of unresponsive supraventricular arrhythmia during concomitant cardiac surgery in ACHD is a safe and effective procedure. Freedom from arrhythmias recurrence is 75% after 6 years of follow-up. Long-term recurrence of arrhythmia in these patients seems to be strongly correlated to preoperative arrhythmia duration.


Asunto(s)
Fibrilación Atrial/cirugía , Aleteo Atrial/cirugía , Ablación por Catéter , Cardiopatías Congénitas/cirugía , Taquicardia Supraventricular/cirugía , Adolescente , Adulto , Anciano , Fibrilación Atrial/diagnóstico , Fibrilación Atrial/etiología , Fibrilación Atrial/fisiopatología , Aleteo Atrial/diagnóstico , Aleteo Atrial/etiología , Aleteo Atrial/fisiopatología , Ablación por Catéter/efectos adversos , Supervivencia sin Enfermedad , Femenino , Cardiopatías Congénitas/complicaciones , Cardiopatías Congénitas/diagnóstico , Cardiopatías Congénitas/fisiopatología , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Recurrencia , Estudios Retrospectivos , Factores de Riesgo , Taquicardia Supraventricular/diagnóstico , Taquicardia Supraventricular/etiología , Taquicardia Supraventricular/fisiopatología , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
11.
Clin Chem Lab Med ; 55(11): 1770-1776, 2017 Oct 26.
Artículo en Inglés | MEDLINE | ID: mdl-28282292

RESUMEN

BACKGROUND: S100B is a well-established biomarker of central nervous system (CNS) development and damage in the perinatal period. Because the fetal CNS induces an overproduction of S100B measurable in the maternal bloodstream we evaluated S100B protein in healthy pregnancies in order to provide a reference curve of the protein in the second and third trimesters and to provide information on CNS development when standard monitoring procedures could be silent or unavailable. METHODS: Between July 2012 and December 2014 we conducted a prospective study in 1213 healthy pregnancies delivering healthy newborns. Maternal blood samples were collected for standard monitoring procedures and S100B assessment. S100B correlations with selected outcomes (gestational age at sampling, gender of fetus, gestational age and weight at birth, delivery mode) were calculated using multiple forward stepwise regression analysis. RESULTS: S100B concentrations in the second and third trimesters of pregnancy were found to be gestational age-, gender- and delivery mode-dependent (p<0.05, for all). Multiple forward stepwise regression analysis with S100B as the dependent variable and gestational age at sampling, gender, delivery mode, gestational age and weight at birth as independent variables, showed a significant correlation between S100B and gestational age at sampling (R=0.13; p<0.001). CONCLUSIONS: The present findings offering a S100B protein reference curve in maternal blood suggest that non-invasive fetal CNS monitoring is becoming feasible and open the way to further research in neuro-biomarker assessment in the maternal bloodstream.


Asunto(s)
Edad Gestacional , Inmunoensayo , Subunidad beta de la Proteína de Unión al Calcio S100/sangre , Adulto , Biomarcadores/sangre , Peso al Nacer , Femenino , Humanos , Mediciones Luminiscentes , Masculino , Atención Perinatal , Embarazo , Estudios Prospectivos , Análisis de Regresión , Factores Sexuales , Adulto Joven
12.
Eur Heart J Suppl ; 18(Suppl E): E27-E30, 2016 Apr 28.
Artículo en Inglés | MEDLINE | ID: mdl-28533713

RESUMEN

Multimodality imaging is the efficient integration of various methods of cardiovascular imaging to improve the ability to diagnose, guide therapy, or predict outcome. This approach implies both the availability of different technologies in a single unit and the presence of dedicated staff with cardiologic and radiologic background and certified competence in more than one imaging technique. Interaction with clinical practice and existence of research programmes and educational activities are pivotal for the success of this model. The aim of this paper is to describe the multimodality cardiac imaging programme recently started at San Donato Hospital.

13.
Eur Heart J Suppl ; 18(Suppl E): E22-E26, 2016 Apr 28.
Artículo en Inglés | MEDLINE | ID: mdl-28533712

RESUMEN

The right timing to replace the pulmonary valve in a patient with dysfunction of the right ventricular outflow tract is unknown. Both percutaneous pulmonary valve and surgical prosthesis are suitable options. In every patient, the right ventricle (RV) remodels and recovers differently after pulmonary replacement. Therefore, it is difficult to identify the best treatment option and to predict the long-term results. In the last few years, we focused our research on optimizing the characterization of these patients through advanced cardiovascular imaging in order to find possible variables, parameters, and reproducible measurements that can help us in the decision-making process. The aim of the present article is to present our ongoing research lines that focus on the characterization and optimal treatment approach to the dysfunction of the RVOT.

14.
Echocardiography ; 32 Suppl 1: S38-52, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24646193

RESUMEN

The right ventricle (RV) is of lesser importance in acquired heart disease, but its role is of increasing importance in congenital heart disease (CHD). Despite major progress being made, precise measurements of the RV are challenging because of its peculiar anatomical structure that is not adaptable to any planar geometrical assumption. This is particularly true in adult patients with CHD where the RV shape eludes any standardization, it may assume various morphologies, and its modality of contraction depends on previous surgical treatment and/or pathophysiological conditions. However, reliable and repeatable quantification of RV dimensions and function for these patients are essential to provide appropriate timing for intervention to optimize outcomes. In this population, echocardiographic evaluation should not be limited to an observational and subjective functional assessment of the RV but must provide quantitative values repeatable and clinically reliable to help the decision-making process. The aim of this review was to discuss the echocardiographic approach to the RV in adult patients with CHD in general and in specific cases of pressure or volume overload.


Asunto(s)
Ecocardiografía Doppler/métodos , Cardiopatías Congénitas/diagnóstico por imagen , Interpretación de Imagen Asistida por Computador , Disfunción Ventricular Derecha/diagnóstico por imagen , Función Ventricular Derecha/fisiología , Adulto , Ecocardiografía Tridimensional/métodos , Femenino , Cardiopatías Congénitas/diagnóstico , Defectos del Tabique Interatrial/diagnóstico , Defectos del Tabique Interatrial/diagnóstico por imagen , Humanos , Contracción Miocárdica/fisiología , Volumen Sistólico/fisiología , Tetralogía de Fallot/diagnóstico , Tetralogía de Fallot/diagnóstico por imagen , Tetralogía de Fallot/cirugía , Disfunción Ventricular Derecha/diagnóstico
15.
Acta Radiol ; 56(10): 1264-72, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25392155

RESUMEN

BACKGROUND: Despite the importance of the autopsy for quality improvement, autopsy rates have declined dramatically in recent decades due to poor acceptance by families and physicians and high costs to institutions. PURPOSE: To compare postmortem imaging (PMI) with autopsy in patients with congenital heart defects to see if PMI could substitute in some or all cases and to compare costs of the two methods. MATERIAL AND METHODS: Ten patients with congenital heart disease dying in hospital during the study period in whom an autopsy was planned underwent PMI using postmortem magnetic resonance imaging (PMMRI) (6 patients) and postmortem computed tomographic angiography (PMCTA) (10 patients) with permission of the family. Four patients were excluded from PMMR because of metal ECMO cannulas. PMI was interpreted before autopsy using an organ system checklist and results compared to autopsy. The costs of each method were tracked. RESULTS: When both PMMR and PMCTA were performed the PMI findings corresponded closely with autopsy. PMI correctly diagnosed the principal heart defects in all six cases and correctly imaged central vessels, heart valves and chambers, brain, abdominal organs, and bone. Weak points were visualization of the coronary arteries and distinguishing postmortem pulmonary atelectasis from lung pathology. The cause of death by PMI matched autopsy findings in 5/6 cases in which both PMMR and PMCTA were performed and was incomplete in the other five cases. The cost of PMI was about 15% lower than the cost of autopsy. CONCLUSION: PMI provided most gross anatomic cardiac diagnoses available by autopsy in our series of patients with congenital heart defects and the cost appears to be lower.


Asunto(s)
Autopsia/métodos , Medicina Legal/métodos , Cardiopatías Congénitas/patología , Imagen por Resonancia Magnética/métodos , Tomografía Computarizada por Rayos X/métodos , Adolescente , Adulto , Niño , Preescolar , Medios de Contraste/administración & dosificación , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Imagenología Tridimensional , Lactante , Recién Nacido , Yopamidol/administración & dosificación , Masculino , Persona de Mediana Edad
16.
Int J Food Sci Nutr ; 66(6): 603-10, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26306466

RESUMEN

The role of inflammation and oxidative stress in atherosclerosis development has been increasingly well recognized over the past decade. Inflammation has a significant role at all stages of atherosclerosis, including initiation, progression and plaque formation. Resveratrol is a naturally occurring polyphenolic compound found in grape products, berry fruits and red wine. Its ability to behave therapeutically as a component of red wine has attracted wide attention. Accumulating evidence suggests that it is a highly pleiotropic molecule that modulates numerous targets and molecular functions. Epidemiological studies indicate that the Mediterranean diet, rich in resveratrol, is associated with a reduced risk of atherosclerosis. Resveratrol is believed to decrease circulating low-density lipoprotein cholesterol levels, reduce cardiovascular disease risk; it reduces lipid peroxidation, platelet aggregation and oxidative stress. Resveratrol is considered a safe compound, since no significant toxic effects have been demonstrated after administration of a broad range of concentrations, and an effective anti-atherogenic agent.


Asunto(s)
Antiinflamatorios no Esteroideos/uso terapéutico , Arteriosclerosis/tratamiento farmacológico , Estilbenos/uso terapéutico , Humanos , Resveratrol
17.
Eur Radiol ; 24(1): 34-41, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23907642

RESUMEN

OBJECTIVES: To determine the minimum survival time for detection of antemortem myocardial ischaemia with postmortem imaging (PMI) techniques. METHODS: Nine pigs underwent ligation of the left anterior descending (LAD) (8) and/or right coronary artery (RCA) branch (4), and were killed 30 min-6 h after ligation. PMI (MRI and CT angiography) was performed 2-55 h after euthanasia. Signal intensity of myocardial segments was measured. The hearts were removed, the coronary arteries injected to mark perfused segments, and sections submitted for histology. RESULTS: MRI T2-weighted sequences showed the ischaemic area as hyperintense in 4/4 LAD ligations with ≥4 h of ischaemia but in 0/4 with <4 h. Histological evidence of ischaemia was present in 4/4 animals after 4 h. Right ventricular ischaemic myocardium was visible on MRI T2-weighted sequences after 6 h of ischaemia in one animal. CT angiography showed the occluded coronary artery in all cases. CONCLUSIONS: Ischaemic lesions of the left ventricle, but not of the right, at least 4 h old can be detected as hyperintense areas on T2-weighted postmortem MRI. This technique is most sensitive in the first 24 h after death. Other sequences did not enhance detection. KEY POINTS: • Left ventricular myocardial ischaemia/infarction can be demonstrated by postmortem imaging (PMI). • Ischaemia/infarction is better detected if survival time is at least 4 h. • Right ventricular ischaemia/infarction is not reliably detected by PMI. • Computed tomography angiography can demonstrate arterial occlusion.


Asunto(s)
Vasos Coronarios/patología , Imagen por Resonancia Cinemagnética/métodos , Isquemia Miocárdica/diagnóstico , Miocardio/patología , Animales , Porcinos
18.
Eur Heart J ; 34(3): 191-200, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23117161

RESUMEN

BACKGROUND: Ebstein anomaly is a rare and heterogeneous congenital heart defect affecting the tricuspid valve and right ventricular (RV) myocardium. Few studies have analysed the electrocardiographic features of Ebstein anomaly and none has addressed correlations with disease severity. METHODS: Patients with Ebstein anomaly who had undergone electrocardiography and cardiac magnetic resonance (CMR) within 6 weeks between 2001 and 2009 were included. Exclusion criteria were: associated congenital cardiac defect, previous RV myoplasty and/or reduction surgery, class I anti-arrhythmic drug therapy, and paced/pre-excited QRS. Standard electrocardiogram (ECG) findings were correlated with CMR-based RV measures and clinical profile. RESULTS: The mean age of the 63 study patients was 22 ± 13 years. An RV conduction delay (rsR' pattern in right precordial leads) was present in 45 patients (71%). The QRS duration correlated with anatomic RV diastolic volume (r = +0.56, P < 0.0001) and inversely with RV ejection fraction (EF; r = -0.62, P < 0.0001). The presence of QRS fractionation predicted greater atrialized RV volume (80 ± 31 vs. 45 ± 37 mL/m(2), P < 0.001). Normal QRS duration was associated with smaller anatomic RV diastolic volume (150 ± 57 vs. 256 ± 100 mL/m(2); P < 0.0001), higher RV EF (48 ± 6 vs. 34 ± 14%; P < 0.0001), higher oxygen consumption (VO(2)) at cardiopulmonary exercise (25.8 vs. 21.8 mL/kg/min, P = 0.05) and lower incidence of oxygen desaturation with exercise (25 vs. 65%, P = 0.02). CONCLUSION: Delayed and prolonged depolarization of the RV is common in patients with Ebstein anomaly. The QRS duration is a marker of RV enlargement and dysfunction. QRS fractionation is associated with a greater atrialized RV volume. A preserved surface ECG identifies a subset of patients with Ebstein anomaly with mild morphological and functional abnormalities and better clinical profile.


Asunto(s)
Anomalía de Ebstein/diagnóstico , Electrocardiografía , Disfunción Ventricular Derecha/diagnóstico , Volumen Cardíaco , Anomalía de Ebstein/fisiopatología , Femenino , Atrios Cardíacos/fisiopatología , Humanos , Angiografía por Resonancia Magnética , Masculino , Remodelación Ventricular , Adulto Joven
19.
Int J Food Sci Nutr ; 65(8): 925-36, 2014 12.
Artículo en Inglés | MEDLINE | ID: mdl-25046596

RESUMEN

Coffee consists of several biological active compounds, such as caffeine, diterpenes, chlorogenic acids, and melanoidins, which may affect human health. The intake of each compound depends on the variety of coffee species, roasting degree, type of brewing method and serving size. The bioavailability and the distribution of each compound and its metabolites also contribute to coffee mechanisms of action. The health benefits of coffee consumption regarding cardiovascular system and metabolism mostly depend on its antioxidant compounds. In contrast, diterpenes and caffeine may produce harmful effects by raising lipid fraction and affecting endothelial function, respectively. Studying the mechanism of action of coffee components may help understanding whether coffee's impact on health is beneficial or hazardous. In this article, we reviewed the available information about coffee compounds and their mechanism of action. Furthermore, benefits and risks for cardiovascular system associated with coffee consumption will be discussed.


Asunto(s)
Alcaloides/farmacología , Cafeína/farmacología , Sistema Cardiovascular/efectos de los fármacos , Ácido Clorogénico/farmacología , Café/química , Diterpenos/farmacología , Polímeros/farmacología , Alcaloides/efectos adversos , Alcaloides/uso terapéutico , Cafeína/efectos adversos , Cafeína/uso terapéutico , Enfermedades Cardiovasculares/prevención & control , Ácido Clorogénico/efectos adversos , Ácido Clorogénico/uso terapéutico , Café/efectos adversos , Diabetes Mellitus Tipo 2/prevención & control , Diterpenos/efectos adversos , Diterpenos/uso terapéutico , Humanos , Extractos Vegetales/efectos adversos , Extractos Vegetales/química , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Polímeros/efectos adversos , Polímeros/uso terapéutico , Polifenoles/efectos adversos , Polifenoles/farmacología , Polifenoles/uso terapéutico
20.
J Cardiovasc Med (Hagerstown) ; 25(7): 473-487, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38829936

RESUMEN

Cardiovascular magnetic resonance (CMR) and computed tomography (CCT) are advanced imaging modalities that recently revolutionized the conventional diagnostic approach to congenital heart diseases (CHD), supporting echocardiography and often replacing cardiac catheterization. This is the second of two complementary documents, endorsed by experts from the Working Group of the Italian Society of Pediatric Cardiology and the Italian College of Cardiac Radiology of the Italian Society of Medical and Interventional Radiology, aimed at giving updated indications on the appropriate use of CMR and CCT in different clinical CHD settings, in both pediatrics and adults. In this article, support is also given to radiologists, pediatricians, cardiologists, and cardiac surgeons for indications and appropriateness criteria for CMR and CCT in the most referred CHD, following the proposed new criteria presented and discussed in the first document. This second document also examines the impact of devices and prostheses for CMR and CCT in CHD and additionally presents some indications for CMR and CCT exams when sedation or narcosis is needed.


Asunto(s)
Consenso , Cardiopatías Congénitas , Humanos , Cardiopatías Congénitas/diagnóstico por imagen , Cardiopatías Congénitas/terapia , Italia , Tomografía Computarizada por Rayos X/normas , Cardiología/normas , Imagen por Resonancia Magnética/normas , Niño , Valor Predictivo de las Pruebas , Adulto , Sociedades Médicas/normas
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA