A PROPOSAL OF A NOVEL CARDIORESPIRATORY LONG-TERM MONITORING DEVICE

S. Lapi, E. Biagi, G. Borgioli, M. Calzolai, L. Masotti, G. Fontana

Abstract

Monitoring of respiratory movements is an important feature in planning of medical care. We present here a simple, portable, accelerometer-based device suitable for long term-monitoring of the breathing and heart rates, along with postural changes, during sleep and wakefulness. Recordings of respiratory frequency, heart rate, posture and voluntary cough were obtained from a group of volunteers who also participated in sleep studies (6-8 hrs). A pair of capacitive MEMS tri-axial accelerometers was positioned at the level of the 10th rib along the mid-axillary line bilaterally; simultaneous recordings of respiratory movements, heart rate and body position could be easily performed. The signal were digitized and used to detect body position and relative movement between accelerometers. Conventional spirometry was performed in parallel when appropriate. During resting breathing, qualitative analysis revealed that the accelerometric assessment of respiratory pattern correlated well with that obtained by spirometry. Values of respiratory rates were identical with the two techniques. Recordings of respiratory and cardiac activity during sleep were satisfactorily obtained except for short lasting episodes corresponding to changes in body position. These devices seem to be also suitable for detecting the motor pattern of cough.

References

  1. Tobin, M. J., Chadha, T. S., Jenouri, G., Birch, S. J., Gazeroglu, H. B., Sackner, M. A., 1983. Breathing patterns. 1. Normal subjects. In Chest; 84 (2): 202-5.
  2. Pauwels, R. A., Buist, A. S., Calverley, P. M., Jenkins, C. R., Hurd, S. S., 2001. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease. NHLBI/WHO Global Initiative for Chronic Obstructive Lung Disease (GOLD) Workshop summary. In Am J Respir Crit Care Med; 163(5):1256-76.
  3. Britton, M., 2003. The burden of COPD in the U.K.: results from the Confronting COPD survey. In Respir Med; 97 Suppl C:S71-9.
  4. Panossian, L. A., Avidan, A. Y., 2009. Review of sleep disorders. In Med Clin North Am.; 93(2):407-25.
  5. Redline, S., Young, T., 1993. Epidemiology and natural history of obstructive sleep apnea. In Ear Nose Throat J; 72(1):20-1, 24-6.
  6. Deegan, P. C., McNicholas, W. T., 1995. Pathophysiology of obstructive sleep apnoea. In Eur Respir J;8(7):1161-78.
  7. McNicholas, W. T., 2008. Diagnosis of obstructive sleep apnea in adults. In Proc Am Thorac Soc;5(2):154-60.
  8. Hurst, J. R., Wedzicha, J. A., 2009. Management and prevention of chronic obstructive pulmonary disease exacerbations: a state of the art review. In BMC Med;7:40.
  9. Perez, W., Tobin, M. J., 1985. Separation of factors responsible for change in breathing pattern induced by instrumentation. In J Appl Physiol; 59 (5):1515-20.
  10. Que, C. L., Kolmaga, C., Durand, L. G., Kelly, S. M., Macklem, P. T., 2002. Phonospirometry for noninvasive measurement of ventilation: methodology and preliminary results. In J Appl Physiol;93(4):1515-26.
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Paper Citation


in Harvard Style

Lapi S., Biagi E., Borgioli G., Calzolai M., Masotti L. and Fontana G. (2011). A PROPOSAL OF A NOVEL CARDIORESPIRATORY LONG-TERM MONITORING DEVICE . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011) ISBN 978-989-8425-35-5, pages 38-42. DOI: 10.5220/0003136100380042


in Bibtex Style

@conference{biosignals11,
author={S. Lapi and E. Biagi and G. Borgioli and M. Calzolai and L. Masotti and G. Fontana},
title={A PROPOSAL OF A NOVEL CARDIORESPIRATORY LONG-TERM MONITORING DEVICE},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011)},
year={2011},
pages={38-42},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003136100380042},
isbn={978-989-8425-35-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011)
TI - A PROPOSAL OF A NOVEL CARDIORESPIRATORY LONG-TERM MONITORING DEVICE
SN - 978-989-8425-35-5
AU - Lapi S.
AU - Biagi E.
AU - Borgioli G.
AU - Calzolai M.
AU - Masotti L.
AU - Fontana G.
PY - 2011
SP - 38
EP - 42
DO - 10.5220/0003136100380042