Short History of The Development of Echocardiograpy With Special Reference to That in Japan (2)

Nimura, Yuji

doi:10.2303/jecho.2.27

Cited by 3 publications

(3 citation statements)

References 41 publications

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“…The main search items used were: "Congenital heart disease" or "Congenital heart defect" or "Heart abnormality" or "Heart malformation" and "Prevalence" or "Incidence" or "Frequency" or "Epidemiology". We excluded studies performed before 1970 as echocardiography for CHD was not widely applied at that time [10,11].…”

Section: Search Strategymentioning

confidence: 99%

Global prevalence of congenital heart disease in school-age children: a meta-analysis and systematic review

Liu

Chen

Zühlke

et al. 2020

BMC Cardiovasc Disord

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Background Congenital heart disease (CHD) is the commonest birth defect. Studies estimating the prevalence of CHD in school-age children could therefore contribute to quantifying unmet health needs for diagnosis and treatment, particularly in lower-income countries. Data at school age are considerably sparser, and individual studies have generally been of small size. We conducted a literature-based meta-analysis to investigate global trends over a 40-year period. Methods and results Studies reporting on CHD prevalence in school-age children (4–18 years old) from 1970 to 2017 were identified from PubMed, EMBASE, Web of Science and Google Scholar. According to the inclusion criteria, 42 studies including 2,638,475 children, reporting the prevalence of unrepaired CHDs (both pre-school diagnoses and first-time school-age diagnoses), and nine studies including 395,571 children, specifically reporting the prevalence of CHD first diagnosed at school ages, were included. Data were combined using random-effects models. The prevalence of unrepaired CHD in school children during the entire period of study was 3.809 (95% confidence intervals 3.075–4.621)/1000. A lower proportion of male than female school children had unrepaired CHD (OR = 0.84 [95% CI 0.74–0.95]; p = 0.001). Between 1970–1974 and 1995–1999, there was no significant change in the prevalence of unrepaired CHD at school age; subsequently there was an approximately 2.5-fold increase from 1.985 (95% CI 1.074–3.173)/1000 in 1995–1999 to 4.832 (95% CI 3.425–6.480)/1000 in 2010–2014, (p = 0.009). Among all CHD conditions, atrial septal defects and ventricular septal defects chiefly accounted for this increasing trend. The summarised prevalence (1970–2017) of CHD diagnoses first made in childhood was 1.384 (0.955, 1.891)/1000; during this time there was a fall from 2.050 [1.362, 2.877]/1000 pre-1995 to 0.848 [0.626, 1.104]/1000 in 1995–2014 (p = 0.04). Conclusions Globally, these data show an increased prevalence of CHD (mainly mild CHD conditions) recognised at birth/infancy or early childhood, but remaining unrepaired at school-age. In parallel there has been a decrease of first-time CHD diagnoses in school-age children. These together imply a favourable shift of CHD recognition time to earlier in the life course. Despite this, substantial inequalities between higher and lower income countries remain. Increased healthcare resources for people born with CHD, particularly in poorer countries, are required.

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Section: Search Strategymentioning

confidence: 99%

Global prevalence of congenital heart disease in school-age children: a meta-analysis and systematic review

Liu

Chen

Zühlke

et al. 2020

BMC Cardiovasc Disord

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“…Doppler echocardiography was developed during the 1950s in Japan by Shigeo Satomura, whose first investigations from 1952 were to measure heart motion rather than blood flow. 25 , 27 , 143 In 1956 Yoshida with Satomura reported that Doppler ultrasound signals could be obtained from the human heart due to the motion of heart valves and blood flow. 144 , 145 Other Japanese investigators correlated the observed phase shift with the velocity of the target, and related the amplitude of the signal to the number of red cells as reflectors.…”

Section: Doppler Ultrasoundmentioning

confidence: 99%

A concise history of echocardiography: timeline, pioneers, and landmark publications

Fraser

Monaghan

Steen

et al. 2022

European Heart Journal - Cardiovascular Imaging

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Echocardiography is less than 70 years old, and many major advances have occurred within living memory, but already some pioneering contributions may be overlooked. In order to consider what circumstances have been common to the most successful innovations, we have studied and here provide a timeline and summary of the most important developments in transthoracic and transoesophageal ultrasound imaging and Doppler techniques, as well as in intravascular ultrasound and imaging in paediatric cardiology. The entries are linked to a comprehensive list of first publications and to a collection of first-hand historical accounts published by early investigators. Review of the original manuscripts highlights that it is difficult to establish unequivocal precedence for many new imaging methods, since engineers were often working independently but simultaneously on similar problems. Many individuals who are prominently linked with particular developments were not the first in their field. Developments in echocardiography have been highly dependent on technological advances, and most likely to be successful when engineers and clinicians were able to collaborate with open exchange between centres and disciplines. As with many other new medical technologies, initial responses were sceptical and introduction into clinical practice required persistence and substantial energy from the first adopters. Current developments involve advances in software as much as in equipment, and progress will depend on continuing collaborations between engineers and clinical scientists, for example to identify unmet needs and to investigate the clinical impact of particular imaging approaches.

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“…Transesophageal echocardiography, which has been established as a special field in echocardiography [17], can provide accurate evaluation of mitral valve prolapse and ruptured chordae tendineae.…”

Section: Introductionmentioning

confidence: 99%

The Relation of Mitral Valve Morphology to Severe Mitral Regurgitation Complicated With Mitral Valve Prolapse

et al. 2008

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Background. Severe mitral regurgitation (MR) is one of the most important complications of mitral valve prolapse (MVP) and it often requires surgical treatment. This study is aimed to assess the relation of mitral valve morphology to severe MR complicated with MVP. Methods.Transesophageal echocardiography was performed in 37 patients with MVP and 30 control subjects.Results. The anterior mitral leaflet (AML) and posterior mitral leaflet (PML) were thicker and longer, and the mitral annulus was larger in patients with MVP than in control subjects (p<0.05). The degree of MVP correlated significantly with the leaflet thickness in systole (AML: r=0.70, PML: r=0.65, p<0.05). In patients with MVP without ruptured chordae tendineae (RCT), the severity of MR correlated significantly with the leaflet thickness, leaflet length and annular diameter (p<0.05). The prolapsed PMLs with RCT were thicker and longer than those without RCT (p<0.05).Conclusions. The leaflet thickness, leaflet length and annular diameter are "proportionally" redundant in patients with MVP, and the redundancy is closely related to the occurrence of RCT or severe MR. (J Echocardiogr 2008; 6: 1-8)

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Short History of The Development of Echocardiograpy With Special Reference to That in Japan (2)

Cited by 3 publications

References 41 publications

Global prevalence of congenital heart disease in school-age children: a meta-analysis and systematic review

Global prevalence of congenital heart disease in school-age children: a meta-analysis and systematic review

A concise history of echocardiography: timeline, pioneers, and landmark publications

The Relation of Mitral Valve Morphology to Severe Mitral Regurgitation Complicated With Mitral Valve Prolapse

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