Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine
<p>Abstract</p> <p>Background</p> <p>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 hea...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
BMC
2009-05-01
|
| Series: | Cardiovascular Ultrasound |
| Online Access: | http://www.cardiovascularultrasound.com/content/7/1/21 |
| _version_ | 1811277245653712896 |
|---|---|
| author | Giannoni Massimo Faita Francesco Pianelli Mascia Pratali Lorenza Pasanisi Emilio Bianchini Elisabetta Gemignani Vincenzo Bombardini Tonino Arpesella Giorgio Sicari Rosa Picano Eugenio |
| author_facet | Giannoni Massimo Faita Francesco Pianelli Mascia Pratali Lorenza Pasanisi Emilio Bianchini Elisabetta Gemignani Vincenzo Bombardini Tonino Arpesella Giorgio Sicari Rosa Picano Eugenio |
| author_sort | Giannoni Massimo |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>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.</p> <p>Aim</p> <p>To assess sensor-based post-exercise contractility, diastolic function and pressure in normal and diseased hearts as a model of a wireless telemedicine system.</p> <p>Methods</p> <p>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.</p> <p>Results</p> <p>Interpretable sensor recordings were obtained in all patients (feasibility = 100%). Post-exercise 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). Post-exercise reduced arterial pressure was sensed.</p> <p>Conclusion</p> <p>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.</p> |
| first_indexed | 2024-04-13T00:12:10Z |
| format | Article |
| id | doaj.art-3564c34f9fcd40b5b69416a948b5c93b |
| institution | Directory Open Access Journal |
| issn | 1476-7120 |
| language | English |
| last_indexed | 2024-04-13T00:12:10Z |
| publishDate | 2009-05-01 |
| publisher | BMC |
| record_format | Article |
| series | Cardiovascular Ultrasound |
| spelling | doaj.art-3564c34f9fcd40b5b69416a948b5c93b2022-12-22T03:11:02ZengBMCCardiovascular Ultrasound1476-71202009-05-01712110.1186/1476-7120-7-21Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicineGiannoni MassimoFaita FrancescoPianelli MasciaPratali LorenzaPasanisi EmilioBianchini ElisabettaGemignani VincenzoBombardini ToninoArpesella GiorgioSicari RosaPicano Eugenio<p>Abstract</p> <p>Background</p> <p>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.</p> <p>Aim</p> <p>To assess sensor-based post-exercise contractility, diastolic function and pressure in normal and diseased hearts as a model of a wireless telemedicine system.</p> <p>Methods</p> <p>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.</p> <p>Results</p> <p>Interpretable sensor recordings were obtained in all patients (feasibility = 100%). Post-exercise 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). Post-exercise reduced arterial pressure was sensed.</p> <p>Conclusion</p> <p>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.</p>http://www.cardiovascularultrasound.com/content/7/1/21 |
| spellingShingle | Giannoni Massimo Faita Francesco Pianelli Mascia Pratali Lorenza Pasanisi Emilio Bianchini Elisabetta Gemignani Vincenzo Bombardini Tonino Arpesella Giorgio Sicari Rosa Picano Eugenio Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine Cardiovascular Ultrasound |
| title | Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine |
| title_full | Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine |
| title_fullStr | Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine |
| title_full_unstemmed | Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine |
| title_short | Post-exercise contractility, diastolic function, and pressure: Operator-independent sensor-based intelligent monitoring for heart failure telemedicine |
| title_sort | post exercise contractility diastolic function and pressure operator independent sensor based intelligent monitoring for heart failure telemedicine |
| url | http://www.cardiovascularultrasound.com/content/7/1/21 |
| work_keys_str_mv | AT giannonimassimo postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT faitafrancesco postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT pianellimascia postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT pratalilorenza postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT pasanisiemilio postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT bianchinielisabetta postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT gemignanivincenzo postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT bombardinitonino postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT arpesellagiorgio postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT sicarirosa postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine AT picanoeugenio postexercisecontractilitydiastolicfunctionandpressureoperatorindependentsensorbasedintelligentmonitoringforheartfailuretelemedicine |