Evidence map›Paper›PMID 27907058›Full record

ArticlePloS one2016

Choice of High-Dose Intravenous Iron Preparation Determines Hypophosphatemia Risk.

Benedikt Schaefer, Philipp Würtinger, Armin Finkenstedt, Vickie Braithwaite, André Viveiros, Maria Effenberger, Irene Sulzbacher, Alexander Moschen, Andrea Griesmacher, Herbert Tilg and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
8.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

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  13. Distinct roles of ferric carboxymaltose and ferric derisomaltose on phosphate homeostasis in iron deficiency anemia.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 2 countries.

Benedikt SchaeferMedical University of Innsbruck, Department of Medicine II, Gastroenterology and Hepatology, Anichstr. Innsbruck, Austria.
Philipp WürtingerCentral Institute for Medical and Chemical Laboratory Diagnosis, Innsbruck University Hospital, Anichstr. Innsbruck, Austria.
Armin FinkenstedtMedical University of Innsbruck, Department of Medicine II, Gastroenterology and Hepatology, Anichstr. Innsbruck, Austria.
Vickie BraithwaiteMedical Research Council (MRC) Human Nutrition Research, Elsie Widdowson Laboratories, Fulbourn Road, Cambridge, United Kingdom.
André ViveirosMedical University of Innsbruck, Department of Medicine II, Gastroenterology and Hepatology, Anichstr. Innsbruck, Austria.
Maria EffenbergerMedical University of Innsbruck, Department of Medicine I, Gastroenterology, Endocrinology and Metabolism, Anichstr. Innsbruck, Austria.
Irene SulzbacherMedical University of Vienna, Department of Pathology, Währingergürtel, Vienna, Austria.
Alexander MoschenMedical University of Innsbruck, Department of Medicine I, Gastroenterology, Endocrinology and Metabolism, Anichstr. Innsbruck, Austria.
Andrea GriesmacherCentral Institute for Medical and Chemical Laboratory Diagnosis, Innsbruck University Hospital, Anichstr. Innsbruck, Austria.
Herbert TilgMedical University of Innsbruck, Department of Medicine I, Gastroenterology, Endocrinology and Metabolism, Anichstr. Innsbruck, Austria.
Wolfgang VogelMedical University of Innsbruck, Department of Medicine II, Gastroenterology and Hepatology, Anichstr. Innsbruck, Austria.
Heinz ZollerMedical University of Innsbruck, Department of Medicine II, Gastroenterology and Hepatology, Anichstr. Innsbruck, Austria.
Innsbruck Medical University · ATUniversität Innsbruck · ATUniversity Hospital Innsbruck · ATMedical Research Council · GBMedical University of Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFerric carboxymaltose (FCM) and iron isomaltoside 1000 (IIM) are increasingly used because they allow correction of severe iron deficiency in a single infusion. A transient decrease in serum phosphate concentrations is a frequent side effect of FCM.

aimTo characterize this adverse event and search for its predictors in a gastroenterology clinic patient cohort.

methodsElectronic medical records of patients attending the University Hospital of Innsbruck were searched for the keywords ferric carboxymaltose or iron isomaltoside. Eighty-one patients with documented administration of FCM or IIM with plasma phosphate concentrations before and after treatment were included.

resultsThe prevalence of hypophosphatemia (<0.8 mmol/L) increased from 11% to 32.1% after treatment with i.v. iron. The hypophosphatemia risk was greater after FCM (45.5%) compared with IIM (4%). Severe hypophosphatemia (<0.6 mmol/L) occurred exclusively after FCM (32.7%). The odds for hypophosphatemia after i.v. iron treatment were independently determined by baseline phosphate and the choice of i.v. iron preparation (FCM vs. IIM-OR = 20.8; 95% CI, 2.6-166; p = 0.004). The median time with hypophosphatemia was 41 days, but prolonged hypophosphatemia of ≥ 2 months was documented in 13 of 17 patients in whom follow-up was available. A significant increase in the phosphaturic hormone intact FGF-23 in hypophosphatemic patients shows that this adverse event is caused by FCM-induced hormone dysregulation.

conclusionTreatment with FCM is associated with a high risk of developing severe and prolonged hypophosphatemia and should therefore be monitored. Hypophosphatemia risk appears to be substantially lower with IIM.

Indexed as

Administration, IntravenousAdultAgedAnemia, Iron-DeficiencyBiomarkersDisaccharidesFemaleFerric CompoundsFibroblast Growth Factor-23HumansHypophosphatemiaMaleMaltoseMiddle AgedPhosphatesPrevalenceBiomarkersDisaccharidesferric carboxymaltoseFerric CompoundsFGF23 protein, humanFibroblast Growth Factor-23iron isomaltoside 1000MaltosePhosphates

Identifiers

PMID27907058
PMCPMC5131956
OpenAlexW2557622425

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.