L’effetto della postura nei pazienti con forame ovale pervio : valutazione dello shunt destro-sinistro con Doppler transcranico ed ecocardiografia transtoracica e correlazione con la saturazione arteriosa di ossigeno
Articolo
Data di Pubblicazione:
2017
Citazione:
L’effetto della postura nei pazienti con forame ovale pervio : valutazione dello shunt destro-sinistro con Doppler transcranico ed ecocardiografia transtoracica e correlazione con la saturazione arteriosa di ossigeno / S. Lucreziotti, C. Debenedetti, L. Massironi, A. Mantero, F. Di Marco, M. Chessa, S. Carugo. - In: GIORNALE ITALIANO DI CARDIOLOGIA. - ISSN 1972-6481. - 18:6(2017 Jun), pp. 519-524.
Abstract:
Background. Transcranial Doppler echocardiography and transthoracic echocardiography may detect
with high accuracy right-to-left shunt (RLS) due to patent foramen ovale (PFO). However, a standardized
diagnostic protocol has never been established. It has been suggested that standing or sitting positions
may improve sensitivity of transcranial Doppler due to increased LRS in such positions. We aimed to test
efficacy of the sitting position in addition to the supine position in the grading of RLS in patients with PFO.
We have also evaluated whether an increase in RLS is associated with a fall in oxygen saturation (SaO2).
Methods. From September 2015 to February 2016, 70 consecutive patients with suspected PFO underwent
transcranial Doppler echocardiography and transthoracic echocardiography with microbubble count
and evaluation of SaO2.
Results. RLS due to PFO was diagnosed in 58 patients (82.9%). An increase in RLS grade in the sitting
position was observed in 28 out of 58 patients (48.3%) (group 1), whereas no increase was detected in
30 patients (51.7%) (group 2). Among the clinical and echocardiographic variables considered, group 1
and group 2 differed only in the prevalence of atrial septal aneurysm (35.7 vs 3.3%, p=0.002). Postural
changes were not associated with a fall in SaO2.
Conclusions. RLS increases in about half of patients with PFO in the sitting position compared with the
supine position, whereas no changes occur in SaO2.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
oxygen saturation; patent foramen ovale; right-to-left shunt; transcranial Doppler echocardiography; transthoracic echocardiography.
Elenco autori:
S. Lucreziotti, C. Debenedetti, L. Massironi, A. Mantero, F. Di Marco, M. Chessa, S. Carugo
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