Benjamin Lieske1, Ingrid Becker2, Ralf Joachim Schulz1, Maria Cristina Polidori3, Jan Kassubek3, Gabriele Roehrig4,5. 1. Department of Geriatric Medicine, St. Marien-Hospital, Cologne, Germany. 2. Institute of Medical Statistics, Informatics and Epidemiology, University of Cologne, Cologne, Germany. 3. Department of Neurology, University of Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany. 4. Department of Geriatric Medicine, St. Marien-Hospital, Cologne, Germany. gabriele.roehrig@uk-koeln.de. 5. Ageing Clinical Research, Department II of Internal Medicine, University of Cologne, Herderstraße 52, 50931, Cologne, Germany. gabriele.roehrig@uk-koeln.de.
Abstract
BACKGROUND: This observational study was carried out to investigate the effect of intravenous (i.v.) iron administration on the clinical symptoms of restless legs syndrome (RLS) in geriatric outpatients over 65 years old. METHODS: In this study geriatric outpatients (mean 4.5 ± 3.4 comorbidities and 5.7 ± 4.4 drugs taken) were recruited according to the following inclusion criteria: ≥ 65 years, diagnosis of RLS due to iron deficiency, i.e. ferritin < 50 µg/l or transferrin saturation (TFS) < 16 %) as well as no other iron therapy within 2 weeks prior to the study. Of the patients 7 (41 %) received 500 mg ferric carboxymaltose (FCM) and 10 patients (59 %) received iron gluconate (62.5 mg) based on the degree of iron deficiency. As assessed by the international RLS severity scale (IRLS) symptoms were recorded 3 times: at the beginning of iron therapy (t0), after 2 weeks (t1) and after 12 weeks (t2). RESULTS: A total of 17 patients (13 female, 4 male, mean age 73.2 ± 5.9 years) were included. The IRLS score significantly improved in all patients as shown by an average decrease from 30.2 (± 4.3) to 20.2 (± 4.7) (p < 0.001) after 2 weeks of i.v. iron treatment and to 23.2 ± 6.6 (p < 0.001) after 12 weeks. There was a high correlation between ferritin values and the IRLS score (C 0.729, p < 0.001). The part of the IRLS referring to activities of daily living (ADL) improved from a median of 3 (scores 3-4) to 2 (scores 2-3, p = 0.001) after 2 weeks (effect size - 0.6). CONCLUSION: In this study group of geriatric outpatients i.v. administration of iron was associated with a significant improvement of symptoms in RLS as assessed by the IRLS score 2 weeks after treatment. In geriatric patients with RLS associated with iron deficiency, i.v. iron administration should be considered regarding improvement of RLS symptoms and ADL.
BACKGROUND: This observational study was carried out to investigate the effect of intravenous (i.v.) iron administration on the clinical symptoms of restless legs syndrome (RLS) in geriatric outpatients over 65 years old. METHODS: In this study geriatric outpatients (mean 4.5 ± 3.4 comorbidities and 5.7 ± 4.4 drugs taken) were recruited according to the following inclusion criteria: ≥ 65 years, diagnosis of RLS due to iron deficiency, i.e. ferritin < 50 µg/l or transferrin saturation (TFS) < 16 %) as well as no other iron therapy within 2 weeks prior to the study. Of the patients 7 (41 %) received 500 mg ferric carboxymaltose (FCM) and 10 patients (59 %) received iron gluconate (62.5 mg) based on the degree of iron deficiency. As assessed by the international RLS severity scale (IRLS) symptoms were recorded 3 times: at the beginning of iron therapy (t0), after 2 weeks (t1) and after 12 weeks (t2). RESULTS: A total of 17 patients (13 female, 4 male, mean age 73.2 ± 5.9 years) were included. The IRLS score significantly improved in all patients as shown by an average decrease from 30.2 (± 4.3) to 20.2 (± 4.7) (p < 0.001) after 2 weeks of i.v. iron treatment and to 23.2 ± 6.6 (p < 0.001) after 12 weeks. There was a high correlation between ferritin values and the IRLS score (C 0.729, p < 0.001). The part of the IRLS referring to activities of daily living (ADL) improved from a median of 3 (scores 3-4) to 2 (scores 2-3, p = 0.001) after 2 weeks (effect size - 0.6). CONCLUSION: In this study group of geriatric outpatients i.v. administration of iron was associated with a significant improvement of symptoms in RLS as assessed by the IRLS score 2 weeks after treatment. In geriatric patients with RLS associated with iron deficiency, i.v. iron administration should be considered regarding improvement of RLS symptoms and ADL.
Entities:
Keywords:
Activities of daily living; Aged; Geriatrics; Iron deficiency; Severity scale
Authors: Richard P Allen; William G Ondo; Eric Ball; Michael O Calloway; Ranjani Manjunath; Rachel L Higbie; Mechele R Lee; Paul A Nisbet Journal: Sleep Med Date: 2011-04-13 Impact factor: 3.492
Authors: Richard P Allen; Charles H Adler; Wei Du; Angelia Butcher; David B Bregman; Christopher J Earley Journal: Sleep Med Date: 2011-10-05 Impact factor: 3.492