Enhanced reflex response to baroreceptor deactivation in subjects with tilt-Induced syncope
Mariavittoria Pitzalis, MD, PhD* ,*,
Gianfranco Parati, MD ,
Francesco Massari, MD||,
Pietro Guida, MSc* ,
Marco Di Rienzo, Eng, MSc¶,
Brian Rizzon, MD* ,
Paolo Castiglioni, Eng, MSc¶,
Massimo Iacoviello, MD* ,
Filippo Mastropasqua, MD|| and
Paolo Rizzon, MD*
* Institute of Cardiology, University of Bari, Bari, Italy
Innovative Technologies for Signal Detection and Processing Center, University of Bari, Bari, Italy
Department of Clinical Medicine, Prevention, and Applied Biotechnologies, University of Milano-Bicocca, Milan, Italy
II Cardiology Unit, S. Luca Hospital, Istituto Auxologico Italiano, Milan, Italy
|| Cardiology, "Salvatore Maugeri" Foundation, IRCCS, Cassano, Italy
¶ LaRC, Bioengineering Center, Don Gnocchi Foundation, Milan, Italy

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Figure 1 Kaplan-Meier curves analysis. Age (top) and baroreflex sensitivity (bottom) were examined in relation to their ability to predict an event-free 45-min tilt-table test. For this analysis, age and baroreflex sensitivity values were arbitrarily divided into quartiles.
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