Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine (Articolo in rivista)

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  • Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1186/1476-7120-7-21 (literal)
Alternative label
  • Bombardini T.; Gemignani V.; Bianchini E.; Pasanisi E.; Pratali L.; Pianelli M.; Faita F.; Giannoni M.; Arpesella G.; Sicari R.; Picano E. (2009)
    Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine
    in Cardiovascular ultrasound
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bombardini T.; Gemignani V.; Bianchini E.; Pasanisi E.; Pratali L.; Pianelli M.; Faita F.; Giannoni M.; Arpesella G.; Sicari R.; Picano E. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 7 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: Cardiovascular Ultrasound, vol. 7 pp. 21 - 28. BioMed Central Ltd, 2009. (literal)
Note
  • ubMe (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IFC, Pisa, Università di Bologna, Department of Surgery and Transplants, University of Bologna, Italy (literal)
Titolo
  • Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine (literal)
Abstract
  • Background: New sensors for intelligent remote monitoring of the heart should be developed. Recently, a cutaneous force-frequency relation recording system has been validated based on heart sound amplitude and timing variations at increasing heart rates. Aim: To assess sensor-based post-exercise contractility, diastolic function and pressure in normal and diseased hearts as a model of a wireless telemedicine system. Methods: We enrolled 150 patients and 22 controls referred for exercise-stress echocardiography, age 55 ± 18 years. The sensor was attached in the precordial region by an ECG electrode. Stress and recovery contractility were derived by first heart sound amplitude vibration changes; diastolic times were acquired continuously. Systemic pressure changes were quantitatively documented by second heart sound recording. Results: Interpretable sensor recordings were obtained in all patients (feasibility = 100%). Postexercise contractility overshoot (defined as increase 10% of recovery contractility vs exercise value) was more frequent in patients than controls (27% vs 8%, p 0.05). At 100 bpm stress heart rate, systolic/diastolic time ratio (normal, 1) was 1 in 20 patients and in none of the controls (p 0.01); at recovery systolic/diastolic ratio was 1 in only 3 patients (p 0.01 vs stress). Postexercise reduced arterial pressure was sensed. Conclusion: Post-exercise contractility, diastolic time and pressure changes can be continuously measured by a cutaneous sensor. Heart disease affects not only exercise systolic performance, but also post-exercise recovery, diastolic time intervals and blood pressure changes - in our study, all of these were monitored by a non-invasive wearable sensor. (literal)
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