Monitoring Blood Pressure Changes with a New Sensor
Author Information
Author(s): Bombardini Tonino, Gemignani Vincenzo, Bianchini Elisabetta, Venneri Lucia, Petersen Christina, Pasanisi Emilio, Pratali Lorenza, Pianelli Mascia, Faita Francesco, Giannoni Massimo, Arpesella Giorgio, Picano Eugenio
Primary Institution: Fondazione Gabriele Monasterio, Italian National Research Council, Pisa, Italy
Hypothesis
The study aims to assess the relationship between second heart sound amplitude variations at increasing heart rates and hemodynamic changes.
Conclusion
The second heart sound recording quantitatively documents systemic pressure changes.
Supporting Evidence
- A consistent second heart sound signal was obtained in all patients.
- Baseline second heart sound amplitude was 7.2 ± 3.3 mg, increasing to 12.7 ± 7.7 mg at peak stress.
- The percentage increase in second heart sound amplitude was significantly different among the exercise, dipyridamole, and pacing groups.
Takeaway
This study shows that a new sensor can help measure heart sounds to understand blood pressure changes during exercise.
Methodology
The study involved 146 patients undergoing different stress tests while monitoring second heart sound amplitude variations.
Limitations
The study used intermittent auscultatory methods for blood pressure measurement, which may lead to inaccuracies.
Participant Demographics
99 males, average age 60 ± 14 years; included patients undergoing exercise, dipyridamole, or pacing stress tests.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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