Evidence map›Paper›PMID 41417161›Full record

Observational studyGeneral thoracic and cardiovascular surgery2026

A simplified frailty assessment using three objective measures predicts mid-term outcomes after cardiac surgery.

Tasuku Honda, Masato Ogawa, Hiroshi Inuki, Norimasa Kubo, Tokunari Aritoshi, Masayuki Shiba, Kazuto Ishimoto, Naoya Kida, Chika Sugimoto, Naomi Yagi

Abstract readObservational StudyValidation Study
In one paragraph

Observational study in General thoracic and cardiovascular surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Tasuku HondaDepartment of Cardiovascular Surgery, Hyogo Prefectural Harima-Himeji General Medical Center, 3-264, Kamiya-cho, Himeji, 670-8560, Japan. thonda@hgmc.hyogo.jp.
Masato OgawaDivision of Rehabilitation Medicine, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan.
Hiroshi InukiDivision of Rehabilitation Medicine, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan.
Norimasa KuboDivision of Rehabilitation Medicine, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan.
Tokunari AritoshiDivision of Rehabilitation Medicine, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan.
Masayuki ShibaDivision of Rehabilitation Medicine, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan.
Kazuto IshimotoDivision of Rehabilitation Medicine, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan.
Naoya KidaDivision of Rehabilitation Medicine, Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan.
Chika SugimotoDivision of Rehabilitation Medicine, Hyogo Prefectural Kakogawa Medical Center, Kakogawa, Japan.
Naomi YagiAdvanced Medical Engineering Research Institute, University of Hyogo, Himeji, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveFrailty is a major risk factor for adverse outcomes following cardiac surgery, yet its routine clinical integration is hindered by the lack of a standardized, convenient assessment method. This study aimed to develop and validate a simplified frailty model using three objective measures: gait speed, serum albumin, and grip strength.

methodsIn this prospective observational study of 261 patients (≥ 65 years) undergoing elective cardiac surgery, frailty was assessed using both the Japanese Cardiovascular Health Study criteria and our simplified model. The model defined frailty as having ≥ 2 of the following: slowness (gait speed < 1.0 m/s), hypoalbuminemia (albumin ≤ 3.5 g/dL), and weakness (grip strength < 28 kg for men, < 18 kg for women).

resultsThe simplified model demonstrated high diagnostic accuracy for frailty defined by the Japanese Cardiovascular Health Study criteria (area under the curve = 0.868; sensitivity, 55.8%; specificity, 91.4%). Frailty defined by our model was a strong predictor of worse 3-year survival (hazard ratio, 10.43; 95% confidence interval, 2.82-38.58; p < 0.001) and event-free survival (hazard ratio, 2.52; 95% confidence interval, 1.47-4.34; p < 0.001), with prognostic power comparable to the Japanese Cardiovascular Health Study criteria.

conclusionsA simplified frailty model incorporating gait speed, serum albumin, and grip strength provides robust diagnostic and prognostic utility. Its objectivity and ease of use may facilitate consistent preoperative risk stratification in patients undergoing cardiac surgery.

Indexed as

Cardiac Surgical ProceduresFrailtyGeriatric AssessmentHand StrengthWalking SpeedAgedAged, 80 and overBiomarkersFemaleFrail ElderlyHumansJapanMalePredictive Value of TestsProspective StudiesReproducibility of ResultsALB protein, humanBiomarkersSerum Albumin, HumanCardiac surgeryFrailtyPrognosisRisk stratification

Identifiers

PMID41417161
PMCPMC13219124

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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.