Evidence map›Paper›PMID 35236435›Full record

ArticleArthroplasty (London, England)2020

Effects of intravenous iron monotherapy for patients with iron deficient anemia undergoing total knee arthroplasty.

Kyun-Ho Shin, Jong-Hoon Park, Ki-Mo Jang, Seok-Ha Hong, Seung-Beom Han

Open access · diamondAbstract read
In one paragraph

Article in Arthroplasty (London, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 55% 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

1 citing paper in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
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

5 authors at 1 institution in 1 country.

Kyun-Ho ShinDepartment of Orthopedic Surgery, Anam Hospital, Korea University College of Medicine, 73 Inchon-ro, Sungbuk-gu, Seoul, 02841, South Korea.
Jong-Hoon ParkDepartment of Orthopedic Surgery, Anam Hospital, Korea University College of Medicine, 73 Inchon-ro, Sungbuk-gu, Seoul, 02841, South Korea.
Ki-Mo JangDepartment of Orthopedic Surgery, Anam Hospital, Korea University College of Medicine, 73 Inchon-ro, Sungbuk-gu, Seoul, 02841, South Korea.
Seok-Ha HongDepartment of Orthopedic Surgery, Anam Hospital, Korea University College of Medicine, 73 Inchon-ro, Sungbuk-gu, Seoul, 02841, South Korea.
Seung-Beom HanDepartment of Orthopedic Surgery, Anam Hospital, Korea University College of Medicine, 73 Inchon-ro, Sungbuk-gu, Seoul, 02841, South Korea. oshan@korea.ac.kr.
Korea University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUnnecessary costs and complications can be reduced by increasing hemoglobin (Hb) levels and minimizing blood transfusions in patients who underwent total knee arthroplasty (TKA). This study aimed to determine the effects of intravenous iron monotherapy before TKA on preoperative iron deficient anemia and postoperative transfusion rates.

methodsThis prospective cohort study included 45 patients scheduled for TKA in the experimental group (Group I) and 221 patients who underwent TKA in 2015 and 2018 in the control group (Group C). One thousand milligrams of ferric carboxymaltose was administrated 1 month before TKA in group I. Intergroup comparison of the rate and total volume of transfusion, perioperative changes in Hb and analysis of iron metabolism variables in group I were performed. Subgroup analysis of Group I was conducted according to the response to iron monotherapy.

resultsAlthough Hb levels increased after intravenous iron monotherapy in Group I, postoperative transfusion rates in Groups I and C were 17.8% and 18.6%, respectively, without significant intergroup differences in the rate and total units of transfusion. Ferritin level and transferrin saturation were corrected in both subgroups of Group I. Only 17 patients (37.78%) showed response to iron monotherapy, with an Hb increase of 1.0 g/dL or more. Subgroup analysis showed lower proportions of coexisting chronic diseases, including chronic kidney disease in responders.

conclusionIV iron monotherapy was shown to be insufficient in successfully treating preoperative iron-deficient anemia to reduce postoperative allogenic blood transfusion in patients who underwent TKA. As preoperative anemia should be managed due to the high rates of postoperative transfusion for this surgery, clinicians should consider the complex interplay among the causal factors of anemia, apart from ID, in patients with preoperative anemia who are scheduled for TKA.

Indexed as

AnemiaFerric carboxymaltoseIronIron deficiencyTotal knee arthroplastyTransfusion

Identifiers

PMID35236435
PMCPMC8796593
OpenAlexW3047216877

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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.