Abstract
The purpose of the study was to examine the response of vagal pulmonary slowly adapting stretch receptors (SAR) to high-frequency oscillation ventilation (HFO) in rabbits by analyzing the afferent activity recorded in vagal single-fiber preparations. The vagal afferent activity was recorded during short runs of HFO with a stroke volume of 2–3 ml/kg applied at oscillation frequencies (fosc) of 5, 10, 15, 20, and 25 Hz and each frequency at three levels of mean airway pressure (Paw), namely, 1, 3, and 8 cm H2O. The receptor discharge rates during HFO were compared with those during quiet spontaneous breathing as well as during static lung inflations and deflations. The majority of SAR was stimulated by HFO, however, the SAR discharge patterns during HFO were less homogeneous than during static lung inflations. The heterogeneity of SAR responses to HFO became pronounced with increasing Paw and fosc, From the results, we conclude that HFO elicits heterogeneous discharge patterns of SAR, but the previously reported heterogeneity of responses of rapidly adapting receptors was even greater. This heterogeneity of vagal activity is probably the result of heterogeneous mechanical conditions within the lungs during HFO and may, in turn, give rise to the various types of respiratory reflex responses to HFO.
Similar content being viewed by others
References
Allen JL, Frantz ID, Fredberg JJ (1987) Heterogeneity of mean alveolar pressure during high-frequency oscillations. J Appl Physiol 62:223–228
Banzett R, Lehr J, Geffroy B (1983) High-frequency ventilation lengthens expiration in the anesthetized dog. J Appl Physiol 55:329–334
Banzett R, Reid MB, Lehr J (1985) High frequency oscillation of the lungs alone lengthens expiration in dogs. Respir Physiol 61:57–67
Barnas GM, Banzett RB, Reid MB, Lehr J (1986) Pulmonary afferent activity during high-frequency ventilation at constant mean lung volume. J Appl Physiol 61:192–197
Davies A, Dutia MB, Price RF (1988) The effect of high-frequency ventilation on pattern of breathing of anaesthetized rabbits. Quart J Exp Physiol 73:353–361
Harrop-Griffiths AW, Chakrabarti MK, Whitwam JG (1987) High frequency ventilation and afferent vagal activity. Anaesthesia 42:1162–1170
Knowlton GC, Larrabee MG (1946) A unitary analysis of pulmonary volume receptors. Am J Physiol 147:100–114
Kohl J, Koller EA (1984) Breathing pattern and stretch receptor activity during high frequency ventilation. Eur J Physiol 402:150–156
Kohl J, Koller EA (1988) Blockade of pulmonary stretch receptors reinforces diaphragmatic activity during high-frequency oscillatory ventilation. Eur J Physiol 411:42–46
Kohl J, Freund U, Koller EA (1988) The relative role of ventilatory variables in eliciting apnea during high-frequency oscillatory ventilation (HFOV). Experientia 44:A32
Kohl J, Freund U, Koller EA (1991) Reflex apnea induced by high-frequency oscillatory ventilation in rabbits. Respir Physiol 84:209–222
Kohl J, Scholz U, Glowicki K, Koller EA (1992) Discharge of pulmonary rapidly adapting stretch receptors during HFO ventilation. Respir Physiol 90:115–124
Koller EA, Ferrer P (1970) Studies on the lung deflation reflex. Respir Physiol 10:172–183
Koller EA, Ferrer P (1973) Discharge patterns of the lung stretch receptors and activation of deflation fibres in anaphylactic bronchial asthma. Respir Physiol 17:113–126
Lunkenheimer PP, Frieling G, Mersch FJ, Redmann K, Lunkenheimer A, Theissen JL, Edel G, Niederer P, Whimster WF (1989) High frequency oscillation: paradigm of inhomogeneous alveolar ventilation. Acta Anaesthesiol Scand Suppl 90:13–21
Man GCW, Man SPF, Kappagoda CT (1983) Effects of high-frequency oscillatory ventilation on vagal and phrenic nerve activities. J Appl Physiol 54:502–507
Mills JE, Sellick H, Widdicombe JG (1969) Activity of lung irritant receptors in pulmonary microembolism, anaphylaxis and drug-induced bronchoconstriction. J Physiol (London) 203: 337–357
Miserocchi G, Sant'Ambrogio G (1974) Responses of pulmonary stretch receptors to stati pressure inflations. Respir Physiol 21:77–85
Nadel JA, Widdicombe JG (1963) Reflex control of airway size. Ann NY Acad Sci 109:712–722
Rewa G, Kappagoda CT, Man SFP, Man GC (1986) The effect of high frequency oscillatory ventilation on pulmonary stretch receptors in the dog. Clin Invest Med 9:167–175
Sant'Ambrogio G (1982) Information arising from the tracheobronchial tree of mammals. Physiol Rev 62:531–569
Sellick H, Widdicombe JG (1970) Vagal deflation and inflation reflexes mediated by lung irritant receptors. Q J Exp Physiol 55:153–163
Sipinkova I, Koller EA, Buess C, Kohl J (1994) Mechanical respiratory system input impedance during high-frequency oscillatory ventilation in rabbits. Crit Care Med 22:S66-S70
Thompson WK, Marchak BE, Bryan AC, Froese AB (1981) Vagotomy reverses apnea induced by high-frequency oscillatory ventilation. J Appl Physiol 51:1484–1487
Thompson-Gorman SL, Fitzgerald RS, Mitzner W (1990) The role of chemical (CO2) drive in the apnea induced by high frequency ventilation in the cat. Respir Physiol 80:307–322
Thompson-Gorman SL, Fitzgerald RS, Mitzner W (1992) Quantitative evaluation of pulmonary stretch receptor activity during high-frequency ventilation. J Appl Physiol72:1101–1110
Wozniak JA, Davenport PW, Kosch PC (1988) Responses of pulmonary vagal mechanoreceptors to high-frequency oscillatory ventilation. J Appl Physiol 65:633–639
Author information
Authors and Affiliations
Additional information
Offprint requests to: Jana Kohl
Rights and permissions
About this article
Cite this article
Kohl, J., Koller, E.A. Heterogeneous activity of pulmonary vagal receptors during high-frequency oscillation ventilation. Lung 173, 281–290 (1995). https://doi.org/10.1007/BF00176891
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00176891