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Research ArticleOriginal Contributions

Immediate Changes in Blood-Gas Tensions During Chest Physiotherapy With Positive Expiratory Pressure and Oscillating Positive Expiratory Pressure in Patients With Cystic Fibrosis

Anna-Lena B Lagerkvist, Gunilla M Sten, Staffan B Redfors, Anders G Lindblad and Ola Hjalmarson
Respiratory Care October 2006, 51 (10) 1154-1161;
Anna-Lena B Lagerkvist
Department of Pediatrics, Institute for Clinical Sciences, the Sahlgrenska Academy at Göteborg University, Göteborg, Sweden
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  • For correspondence: [email protected]
Gunilla M Sten
Department of Pediatrics, Institute for Clinical Sciences, the Sahlgrenska Academy at Göteborg University, Göteborg, Sweden
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Staffan B Redfors
Department of Pediatrics, Institute for Clinical Sciences, the Sahlgrenska Academy at Göteborg University, Göteborg, Sweden
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Anders G Lindblad
Department of Pediatrics, Institute for Clinical Sciences, the Sahlgrenska Academy at Göteborg University, Göteborg, Sweden
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Ola Hjalmarson
Department of Pediatrics, Institute for Clinical Sciences, the Sahlgrenska Academy at Göteborg University, Göteborg, Sweden
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Abstract

OBJECTIVE: To assess and compare immediate effects of chest physiotherapy with positive expiratory pressure (PEP) versus oscillating PEP on transcutaneously measured blood-gas tensions in patients with cystic fibrosis.

METHODS: Fifteen patients (mean age 12.5 y, range 6.9–21.5 y) participated. The treatments were randomized and performed on 2 separate occasions, 8 weeks apart. Spirometry was conducted before and after each treatment. We transcutaneously measured oxygen tension (PtO2) and carbon dioxide tension (PtCO2) 20 min before, during, and 10 min after each treatment.

RESULTS: There were no changes in spirometry values. During PEP, different trends in blood-gas tension were seen, and there were no consistent changes. During oscillating PEP, PtO2 increased and PtCO2 decreased. During oscillating PEP, PtCO2 was lower and the intra-individual change in PtCO2 was more pronounced than during PEP. The results obtained immediately after oscillating PEP showed a higher PtO2 and a lower PtCO2 than with PEP.

CONCLUSION: PEP and oscillating PEP can both cause transitory effects on blood gases in patients with cystic fibrosis. However, oscillating PEP alters blood-gas tensions more than does PEP, and hyperventilation during oscillating PEP may reduce treatment time.

  • adolescent
  • chest physiotherapy
  • child
  • cystic fibrosis
  • oscillating positive expiratory pressure
  • positive expiratory pressure
  • transcutaneous blood gas tensions

Footnotes

  • Correspondence: Anna-Lena Lagerkvist PT MSc PhD, Department of Physical Therapy, The Queen Silvia Children's Hospital, S-416 85 Göteborg, Sweden. E-mail: anna-lena.lagerkvist{at}vgregion.se.
  • Anna-Lena Lagerkvist PT MSc PhD presented a version of this paper at the annual congress of the European Respiratory Society, held September 4-8, 2004, in Glasgow, Scotland.

  • Copyright © 2006 by Daedalus Enterprises Inc.
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Respiratory Care: 51 (10)
Respiratory Care
Vol. 51, Issue 10
1 Oct 2006
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Immediate Changes in Blood-Gas Tensions During Chest Physiotherapy With Positive Expiratory Pressure and Oscillating Positive Expiratory Pressure in Patients With Cystic Fibrosis
Anna-Lena B Lagerkvist, Gunilla M Sten , Staffan B Redfors, Anders G Lindblad, Ola Hjalmarson
Respiratory Care Oct 2006, 51 (10) 1154-1161;

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Immediate Changes in Blood-Gas Tensions During Chest Physiotherapy With Positive Expiratory Pressure and Oscillating Positive Expiratory Pressure in Patients With Cystic Fibrosis
Anna-Lena B Lagerkvist, Gunilla M Sten , Staffan B Redfors, Anders G Lindblad, Ola Hjalmarson
Respiratory Care Oct 2006, 51 (10) 1154-1161;
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Keywords

  • adolescent
  • chest physiotherapy
  • child
  • cystic fibrosis
  • oscillating positive expiratory pressure
  • Positive expiratory pressure
  • transcutaneous blood gas tensions

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