Zum Inhalt
Erschienen in:

31.08.2022 | original article

Effect of intravenous ferric carboxymaltose on exercise capacity and quality of life in patients with COPD

A pilot study

verfasst von: Erwin Grasmuk-Siegl, MD, Matthias Helmuth Urban, MD, Sebastian Scherrer, MD, Georg-Christian Funk, MD

Erschienen in: Wiener klinische Wochenschrift | Ausgabe 1-2/2023

Einloggen, um Zugang zu erhalten

Summary

Background and objective

Chronic obstructive pulmonary disease (COPD) is associated with reduced exercise capacity. In COPD iron deficiency is found in up to 50% of patients and may impair exercise capacity, the potential therapeutic effect is yet unknown. We aimed to estimate the beneficial effect of intravenous ferric carboxymaltose on exercise capacity and quality of life in patients with COPD.

Methods

In this non-randomized, interrupted time series pilot trial we enrolled outpatients with stable COPD (GOLD II and III) and nonanemic iron deficiency (i.e., ferritin level < 100 μg/l or ferritin level 100–300 μg/l if transferrin saturation < 20%). Patients with cardiovascular-or inflammatory diseases were excluded. Participants performed 6‑minute walking test (6-MWT) and cardiopulmonary exercise testing (CPET) and completed the St. George’s Respiratory Questionnaire (SGRQ).

Results

From 35 screened patients, 11 (72% male, 63 ± 8 years, FEV1%predicted 44 ± 14) were included. Mean ferritin and hemoglobin were 70 ± 41 µg/l and 13.8 ± 1.7 g/dl, respectively. Four weeks after iron administration the 6‑MWT distance increased by 34.7 ± 34.4 m (95% CI, 10.0–59.3); p = 0.011. The VO2max increased by 1.87 ± 1.2 ml/kg/min (95% CI, 0.76–3); p = 0.006. Mean score of SGRQ was reduced by 7.56 ± 6.12 units (95% CI, 3 to 11); p = 0.004. The insignificant alteration in hemoglobin did not correlate with increase in exercise capacity.

Conclusion

Administration of intravenous iron was associated with improved exercise capacity and quality of life in stable COPD patients independent of hemoglobin. Our data provide a basis to calculate a statistically sufficient sample size for a randomized controlled follow-up study.
Anhänge
Dieser Inhalt ist nur sichtbar, wenn du eingeloggt bist und die entsprechende Berechtigung hast.
Literatur
Dieser Inhalt ist nur sichtbar, wenn du eingeloggt bist und die entsprechende Berechtigung hast.
Metadaten
Titel
Effect of intravenous ferric carboxymaltose on exercise capacity and quality of life in patients with COPD
A pilot study
verfasst von
Erwin Grasmuk-Siegl, MD
Matthias Helmuth Urban, MD
Sebastian Scherrer, MD
Georg-Christian Funk, MD
Publikationsdatum
31.08.2022
Verlag
Springer Vienna
Erschienen in
Wiener klinische Wochenschrift / Ausgabe 1-2/2023
Print ISSN: 0043-5325
Elektronische ISSN: 1613-7671
DOI
https://doi.org/10.1007/s00508-022-02073-4