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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1016/j.jsha.2012.11.004
|2 doi
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|a pubmed24n0773.xml
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|a (NLM)24174840
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Salem Omar, Alaa Mabrouk
|e verfasserin
|4 aut
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|a Simplifying proximal isovelocity surface area as an assessment method of mitral valve area in patients with rheumatic mitral stenosis by fixing aliasing velocity and mitral valve angle
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 31.10.2013
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|a Date Revised 21.10.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a UNLABELLED: We aimed to test the ability of a simple equation using proximal isovelocity surface area method (PISA), created by fixing the angle to 100° and the aliasing velocity to 33 cm/s, to calculate mitral valve area (MVA) and assess severity in patients with rheumatic mitral stenosis (MS)
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|a METHODS AND RESULTS: In a series of 51 consecutive patients with rheumatic MS, MVA was assessed by four methods, conventional PISA equation (PISAconventional), simple PISA equation (PISAsimple), pressure half time (PHT), and planimetry (PLN) which was taken as the reference method. All methods correlated significantly with PLN with the highest correlation found in case of PISAconventional and PISAsimple (r = 0.97, 0.96, p < 0.001), while the correlation in case PHT was relatively weaker (r = 0.69, p < 0.001). Bland-Altman analysis revealed that the level of agreement with PLN was better in case of both PISA methods than PHT and, moreover, were close to each other. The number of cases that showed agreement of severity grade with planinetry was better in case of PISAconventional (42 cases) and PISAsimple (44 cases) than that in case of PHT (34 cases, p = 0.037). Finally, the measure of agreement with Cohen's Kappa test was better in case of PISAconventional and PISAsimple than that in case of PHT
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|a CONCLUSION: Provided that aliasing velocity is fixed at 33 cm/s, PISA can effectively predict mitral valve area and severity of MS by a simple equation, with the advantage of easy and accurate calculation over other methods
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|a Journal Article
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|a Mitral valve area
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|a Proximal isovelocity surface area
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|a Rhuematic mitral stenosis
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|a Abdel-Rahman, Mohammed Ahmed
|e verfasserin
|4 aut
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| 700 |
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|a Tanaka, Hidekazu
|e verfasserin
|4 aut
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| 700 |
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|a Rifaie, Osama
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of the Saudi Heart Association
|d 1999
|g 25(2013), 1 vom: 03. Jan., Seite 9-17
|w (DE-627)NLM098225227
|x 1016-7315
|7 nnns
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| 773 |
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|g volume:25
|g year:2013
|g number:1
|g day:03
|g month:01
|g pages:9-17
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|u http://dx.doi.org/10.1016/j.jsha.2012.11.004
|3 Volltext
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