Personalising airway clearance in chronic lung disease
Open accessAbstract
This review describes a framework for providing a personalised approach to selecting the most appropriate airway clearance technique (ACT) for each patient. It is based on a synthesis of the physiological evidence that supports the modulation of ventilation and expiratory airflow as a means of assisting airway clearance. Possession of a strong understanding of the physiological basis for ACTs will enable clinicians to decide which ACT best aligns with the individual patient's pathology in diseases with anatomical bronchiectasis and mucus hypersecretion. The physiological underpinning of postural drainage is that by placing a patient in various positions, gravity enhances mobilisation of secretions. Newer ACTs are based on two other physiological premises: the ability to ventilate behind obstructed regions of the lung and the capacity to achieve the minimum expiratory airflow bias necessary to mobilise secretions. After reviewing each ACT to determine if it utilises both ventilation and expiratory flow, these physiological concepts are assessed against the clinical evidence to provide a mechanism for the effectiveness of each ACT. This article provides the clinical rationale necessary to determine the most appropriate ACT for each patient, thereby improving care.
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Breathing exercise improves respiratory muscle function, ribcage flexibility, and gas exchange, and may decrease blood pressure, respiratory rate, and stress.
“The physiological rationale behind the progress might be that breathing exercise improves respiratory muscle function, ribcage flexibility, gas exchange, and may decrease blood pressure, respiratory rate, and stress [11, 12, 28, 29]; consequently, helping patients with COVID-19 to manage their respiratory symptoms.”
From Effects of short-term breathing exercises on respiratory recovery in patients with COVID-19: a quasi-experimental study (2022) · cites this paper as [28]
The ‘Active cycle of breathing techniques’ section (page unavailable) says thoracic expansion exercises and a breath hold improve ventilation distribution and alveolar gas mixing. That supports a respiratory-ventilation rationale, but it does not establish improved respiratory muscle function or ribcage flexibility, improved gas exchange itself, or reductions in blood pressure, respiratory rate, or stress. (LLM, conf=0.86)
Experimental — accuracy not yet measuredA forced expiratory technique like huffing and coughing increases the linear velocity of the expiratory airflow and propels secretions, which helps in airway clearance [28].
“A forced expiratory technique like huffing and coughing increases the linear velocity of the expiratory airflow and propels secretions, which help in airways clearance [28].”
From Effects of short-term breathing exercises on respiratory recovery in patients with COVID-19: a quasi-experimental study (2022) · cites this paper as [28]
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Research works printed but not linked: 80
- [1]Collins FS, Varmus H. A new initiative on precision medicine. N Engl J Med 2015; 372: 793– 795. 25635347 PMC5101938
- [2]Ambrosino N, Clini EM. Response to pulmonary rehabilitation: toward personalised programmes? Eur Respir J 2015; 46: 1538– 1540. 26621879
- [3]Balsamo R, Lanata L, Egan CG. Mucoactive drugs. Eur Respir Rev 2010; 19: 127– 133. 20956181 PMC9682576
- [4]Bott J, Blumenthal S, Buxton M, et al. Guidelines for the physiotherapy management of the adult, medical, spontaneously breathing patient. Thorax 2009; 64: Suppl. 1, i1– i51. 19406863
- [5]Chilvers MA, O'Callaghan C. Local mucociliary defence mechanisms. Paediatr Respir Rev 2000; 1: 27– 34. 16263440
- [6]Chilvers MA, Rutman A, O'Callaghan C. Functional analysis of cilia and ciliated epithelial ultrastructure in healthy children and young adults. Thorax 2003; 58: 333– 338. 12668798 PMC1746630
- [7]Sanchis J, Dolovich M, Rossman C, et al. Pulmonary mucociliary clearance in cystic fibrosis. New Engl J Med 1973; 288: 651– 654. 4687257
- [8]Wong JW, Keens TG, Wannamaker EM, et al. Effects of gravity on tracheal mucus transport rates in normal subjects and in patients with cystic fibrosis. Pediatrics 1977; 60: 146– 152. 887327
- [9]Macchione M, King M, Lorenzi, et al. Rheological determinants of mucociliary transport in the nose of the rat. Respir Physiol 1995; 99: 165– 172. 7740205
- [10]Rubin BK. Physiology of airway mucus clearance. Respir Care 2002; 47: 761– 768. 12088546
- [11]Donaldson SH, Boucher RC. Update on pathogenesis of cystic fibrosis lung disease. Curr Opin Pulm Med 2003; 9: 486– 491. 14534400
- [12]Pasteur MC, Bilton D, Hill AT. British Thoracic Society guideline for non-CF bronchiectasis. Thorax 2010; 65: Suppl 1, i1– i58. 20627931
- [13]Matthews LW, Doershuk CF, Wise M, et al. A therapeutic regimen for patients with cystic fibrosis. J Pediatr 1964; 65: 558– 575. 14216644
- [14]Hess DR. The evidence for secretion clearance techniques. Respir Care 2001; 46: 1276– 1293. 11679147
- [15]Thomas J, Cook DJ, Brooks D. Chest physical therapy management of patients with cystic fibrosis. A meta-analysis. Am J Respir Crit Care Med 1995; 151: 846– 850. 7881681
- [16]Rossman CM, Waldes R, Sampson D, et al. Effect of chest physiotherapy on the removal of mucus in patients with cystic fibrosis. Am Rev Respir Dis 1982; 126: 131– 135. 7091898
- [17]Van Hengstum M, Festen J, Beurskens C, et al. Conventional physiotherapy and forced expiration manoeuvres have similar effects on tracheobronchial clearance. Eur Respir J 1988; 1: 758– 761. 3234521
- [18]Humberstone N. Respiratory assessment and treatment. In: Irwin T, ed. Cardiopulmonary Physical Therapy. St Louis, Mosby, 1990; pp. 310– 316.
- [19]McIlwaine PM, Wong LTK, Peacock D, et al. Long-term comparative trial of conventional postural drainage and percussion versus positive expiratory pressure physiotherapy in the treatment of cystic fibrosis. J Pediatr 1997; 131: 570– 574. 9386661
- [20]Button BM, Heine RG, Catto-Smith AG, et al. Postural drainage in cystic fibrosis: is there a link with gastro-oesophageal reflux? J Paediatr Child Health 1998; 34: 330– 334. 9727172
- [21]Lannefors L, Wollmer P. Mucus clearance with three chest physiotherapy regimes in cystic fibrosis: a comparison between postural drainage, PEP and physical exercise. Eur Respir J 1992; 5: 748– 753. 1628733
- [22]Martins JA, Dornelas de Andrade A, Britto RR, et al. Effect of slow expiration with glottis opened in lateral posture (ELTGOL) on mucus clearance in stable patients with chronic bronchitis. Respir Care 2012; 57: 420– 426. 22005107
- [23]Fink JB. Positioning versus postural drainage. Respir Care 2002; 47: 769– 777. 12088547
- [24]Murray JF. Ventilation. In: Murray JF, ed. The Normal Lung. Philadelphia, WB Saunders, 1986; pp. 114– 117.
- [25]Otis AB, McKerrow CB, Bartlett RA, et al. Mechanical factors in distribution of pulmonary ventilation. J Appl Physiol 1956; 8: 427– 443. 13286206
- [26]Mead J, Takishima T, Leith D. Stress distribution in lungs: a model of pulmonary elasticity. J Appl Physiol 1970; 28: 596– 608. 5442255
- [27]Menkes H, Lindsay D, Wood L, et al. Interdependence of lung units in intact dog lungs. J Appl Physiol 1972; 32: 681– 686. 5038858
- [28]Van Allen CM, Lindskog GE, Richter HG. Collateral respiration. Transfer of air collaterally between pulmonary lobules. J Clin Invest 1931; 10: 559– 590. 16693999 PMC435770
- [29]Menkes HA, Traystman RA. Collateral ventilation. Am Rev Respir Dis 1977; 116: 287– 309. 889177
- [30]Macklem PT. Airway obstruction and collateral ventilation. Physiol Rev 1971; 51: 368– 436. 4928122
- [31]Hogg JC, Macklem PT, Thurlbeck WM. The resistance of collateral channels in excised human lungs. J Clin Invest 1969; 48: 421– 431. 5773080 PMC535706
- [32]Lambert MW. Accessory bronchiole-alveolar communications. J Pathol Bacteriolol 1955; 70: 311– 314. 13295905
- [33]Backstacky J, Goerke J. Pores of Kohn are filled in normal lungs: low-temperature scanning electron microscopy. J Appl Physiol 1992; 73: 88– 95. 1506404
- [34]Cordingley JL. Pores of Kohn. Thorax 1972; 27: 433– 441. 5075613 PMC469947
- [35]Martin HB. Respiratory bronchioles as the pathway for collateral ventilation. J Appl Physiol 1966; 21: 1443– 1447. 5923213
- [36]Crawford ABH, Cotton DJ, Paiva M, et al. Effect of airway closure on ventilation distribution. J Appl Physiol 1989; 66: 2511– 2515. 2745313
- [37]Ward RJ, Danziger F, Bonica JJ, et al. An evaluation of postoperative respiratory maneuvers. Surg Gynecol Obstet 1966; 123: 51– 54. 5947125
- [38]West JB. Respiratory Physiology, the Essentials. Baltimore, Lippincott Williams & Wilkins, 2008.
- [39]Bhuyan U, Peters AM, Gordon I, et al. Effects of posture on the distribution of pulmonary ventilation and perfusion in children and adults. Thorax 1989; 44: 480– 484. 2763258 PMC1020808
- [41]Dean E, Ross J. Discordance between cardiopulmonary physiology and physical therapy. Toward a rational basis for practice. Chest 1992; 101: 1694– 1698. 1600794
- [42]Kendrick AH. Airway clearance techniques in cystic fibrosis: physiology, devices and the future. J Royal Soc Med 2007; 100: Suppl. 47, 3– 23. 17926724
- [43]Lapin CD. Airway physiology, autogenic drainage and active cycle of breathing. Respir Care 2002; 47: 778– 785. 12088548
- [44]Fink JB. Forced expiratory technique, directed cough and autogenic drainage. Respir Care 2007; 52: 1210– 1221. 17716387
- [45]Mead J, Turner JM, Macklem PT, et al. Significance of the relationship between lung recoil and maximum expiratory flow. J Appl Physiol 1967; 22: 95– 108. 6017658
- [46]Kim CS, Iglesias AL, Sackner MA. Mucus clearance by two-phase gas-liquid flow mechanism: asymmetric periodic flow model. J Appl Physiol 1987; 62: 959– 971. 3571095
- [47]Tarran R, Button B, Boucher RC. Regulation of normal and cystic fibrosis airway surface liquid volume by phasic shear stress. Annu Rev Physiol 2006; 68: 543– 561. 16460283
- [48]Hasani A, Pavia D, Agnew JE, et al. Regional lung clearance during cough and forced expiration technique (FET): effects of flow and viscoelasticity. Thorax 1994; 49: 557– 561. 8016793 PMC474944
- [49]McCarren B, Alison JA. Physiological effects of vibration in subjects with cystic fibrosis. Eur Respir J 2006; 27: 1204– 1209. 16455834
- [51]McIlwaine PM. Airway Clearance in Cystic Fibrosis. PhD Thesis. Faculty of Life and Health Sciences, University of Ulster, Belfast, 2014.
- [52]Button B, Boucher RC. Role of mechanical stress in regulating airway surface hydration and mucus clearance rates. Respir Physiol Neurobiol 2008; 163: 189– 201. 18585484 PMC2645865
- [53]King M, Phillips DM, Gross D. Enhanced tracheal mucus clearance with high frequency chest wall compression. Am Rev Respir Dis 1983; 128: 511– 515. 6614645
- [54]Dasgupta B, Brown NE, King M. Effects of sputum oscillations and rhDNase in vitro: a combined approach to treat cystic fibrosis lung disease. Pediatr Pulmonol 1998; 26: 250– 255. 9811074
- [55]App EM, Kieselmann R, Reinhardt D, et al. Sputum rheology changes in cystic fibrosis lung disease following two different types of physiotherapy: Flutter vs autogenic drainage. Chest 1998; 114: 171– 177. 9674466
- [56]Dwyer T, Alison JA, McKeough ZJ, et al. Effects of exercise on respiratory flow and sputum properties in patients with cystic fibrosis. Chest 2011; 139: 870– 877. 20829339
- [57]McCarren B, Alison JA, Herbert RD. Vibration and its effect on the respiratory system. Aust J Physiother 2006; 52: 39– 43. 16515421
- [58]McCarren B, Alison JA, Herbert RD. Manual vibration increases expiratory flow rate via increased intrapleural pressure in healthy adults: an experimental study. Aust J Physiother 2006; 52: 267– 271. 17132121
- [60]Cecins NM, Jenkins SC, Pengelley J, et al. The active cycle of breathing techniques – to tip or not to tip? Respir Med 1999; 93: 660– 665. 10542981
- [61]Partridge C, Pryor JA, Webber B. Characteristics of the forced expiration technique. Physiotherapy 1989; 75: 193– 194.
- [62]Schöni MH. Autogenic drainage: a modern approach to physiotherapy in cystic fibrosis. J R Soc Med 1989; 82: Suppl. 16, 32– 37. 2657053 PMC1291917
- [63]Anderson JB, Qvist J, Kann T. Recruiting collapsed lung through collateral channels with positive end-expiratory pressure. Scand J Respir Dis 1979; 60: 260– 266. 392747
- [64]Falk M, Kelstrup M, Andersen JB, et al. Improving the ketchup bottle method with positive expiratory pressure, PEP, in cystic fibrosis. Eur J Respir Dis 1984; 65: 423– 432. 6381081
- [65]Groth S, Stafanger G, Dirksen H, et al. Positive expiratory pressure (PEP-mask) physiotherapy improves ventilation and reduces volume of trapped gas in cystic fibrosis. Bull Eur Physiopathol Respir 1985; 21: 339– 343. 3899222
- [67]Volsko TA, DeFore J, Chatburn RL. Performance comparison of two oscillating positive expiratory pressure devices: Acapella versus Flutter. Respir Care 2003; 48: 124– 130. 12556253
- [69]McIlwaine PM, Wong LTK, Peacock D, et al. Long-term comparative trial of positive expiratory pressure versus oscillating positive expiratory pressure (Flutter) physiotherapy in the treatment of cystic fibrosis. J Pediatr 2001; 138: 845– 850. 11391327
- [70]Hansen LG, Warwick WJ, Hansen KL. Mucus transport mechanisms in relation to the effect of high frequency chest compression (HFCC) on mucus clearance. Pediatr Pulmonol 1994; 17: 113– 118. 8165037
- [71]Dosman CF, Zuberbuhler PC, Tabak JI, et al. Effects of positive end-expiratory pressure on oscillated volume during high frequency chest compression in children with cystic fibrosis. Can Respir J 2003; 10: 94– 98. 12687028
- [72]Jones RL, Lester RT, Brown NE. Effects of high frequency chest compression on respiratory system mechanics in normal subjects and cystic fibrosis patients. Can Respir J 1995; 1: 40– 46.
- [73]Arens R, Gozal D, Omlin KJ, et al. Comparison of high frequency chest compression and conventional chest physiotherapy in hospitalized patients with cystic fibrosis. Am J Respir Crit Care Med 1994; 150: 1154– 1157. 7921452
- [74]Braggion C, Cappelletti LM, Cornacchia M, et al. Short-term effects of three chest physiotherapy regimens in patients hospitalized for pulmonary exacerbations of cystic fibrosis: a cross-over randomized study. Pediatr Pulmonol 1995; 19: 16– 22. 7675553
- [75]Kluft J, Beker L, Castagnino M, et al. A comparison of bronchial drainage treatments in cystic fibrosis. Thorax 1996; 22: 271– 274. 8905888
- [76]Oermann CM, Sockrider MM, Giles D, et al. Comparison of high-frequency chest wall oscillation and oscillating positive expiratory pressure in the home management of cystic fibrosis: a pilot study. Pediatr Pulmonol 2001; 32: 372– 377. 11596162
- [77]McIlwaine MP, Alarie N, Davidson GF, et al. Long-term multicentre randomised controlled study of high frequency chest wall oscillation versus positive expiratory pressure mask in cystic fibrosis. Thorax 2013; 68: 746– 751. 23407019
- [78]Sontag MK, Quittner AL, Modi AC, et al. Lessons learned from a randomized trial of airway secretion clearance techniques in cystic fibrosis. Pediatr Pulmonol 2010; 45: 291– 300. 20146387 PMC4163837
- [79]Warnock L, Gates A, van der Schans CP. Chest physiotherapy compared to no chest physiotherapy for cystic fibrosis. Cochrane Database Syst Rev 2013; 9: CD001401. 24006212
- [80]Main E, Prasad A, van de Schans CP. Conventional chest physiotherapy compared to other airway clearance techniques for cystic fibrosis. Cochrane Database Syst Rev 2005; 1: CD002011. PMC7388307 15674888
- [81]McKoy NA, Saldanha IJ, Odelola OA, et al. Active cycle of breathing technique for cystic fibrosis. Cochrane Database Syst Rev 2012; 12: CD007862. 23235649
- [82]McIlwaine M, Button B, Dwan K. Positive expiratory pressure physiotherapy for airway clearance in people with cystic fibrosis. Cochrane Database Syst Rev 2015; 17: CD003147. 26083308
- [83]Morrison L, Agnew J. Oscillating devices for airway clearance in people with cystic fibrosis. Cochrane Database Syst Rev 2011; CD006842. 19160305
- [84]Hoo ZH, Daniels T, Wildman MJ, et al. Airway clearance techniques used by people with cystic fibrosis in the UK. Physiotherapy 2015; 101: 340– 348. 25910514
- [86]Button BM, Button B. Structure and function of the mucus clearance system of the lung. Cold Spring Harb Perspect Med 2013; 3: a009720. 23751214 PMC3721269
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Kader, M., Hossain, M. A., Reddy, V., Perera, N. K. P., & Rashid, M. (2022) · BMC Sports Science, Medicine and Rehabilitation · doi:10.1186/s13102-022-00451-z · Cited by 33 · see citing works
“A forced expiratory technique like huffing and coughing increases the linear velocity of the expiratory airflow and propels secretions, which help in airways clearance [28].”
Background
- Authors
- McIlwaine, M., Bradley, J., Elborn, J. S., & Moran, F.
- Affiliations
- University of British Columbia (CA)
- Queen's University Belfast (GB)
- University of Ulster (GB)
- Corresponding author
- McIlwaine, Maggie
- Venue
- European Respiratory Review
- Publisher
- European Respiratory Society (ERS)
- Published
- 2017-02-21
- Volume
- 26
- Issue
- 143
- Pages
- 160086
- ISSN
- 0905-9180 (ISSN-L)
- 1600-0617
- PMC
- PMC9488523
- OpenAlex
- W2591490325
- Cited by
- 124
- References
- 0
- Citations by year
- 2026: 22 · 2025: 6 · 2024: 12 · 2023: 13 · 2022: 25 · 2021: 14 · 2020: 11 · 2019: 12 · 2018: 5 · 2017: 4
- FWCI
- 1.60
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc
- Locations
- European Respiratory Review (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- Ulster University Research Portal (Ulster University) (acceptedVersion, other-oa)
- Research Portal (Queen's University Belfast) (submittedVersion, cc-by-nc)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Spiral (Imperial College London) (submittedVersion, other-oa)
- Topics
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cystic Fibrosis Research Advances
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Respiratory and Cough-Related Research
- Keywords
- airway clearance techniques, personalized treatment, chronic lung disease, bronchiectasis, mucus hypersecretion, postural drainage
- MeSH terms
- Animals, Humans, Lung, Lung Diseases, Mucociliary Clearance, Peak Expiratory Flow Rate, Respiration, Artificial, Pulmonary Ventilation, Drainage, Postural, Treatment Outcome, Patient Selection, Quality Indicators, Health Care, Patient Positioning, Precision Medicine, Quality Improvement
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