Evidence map›Paper›PMID 33653285›Full record

ArticleBMC geriatrics2021

Delirium in older patients undergoing aortic valve replacement: incidence, predictors, and cognitive prognosis.

Marc Humbert, Christophe J Büla, Olivier Muller, Hélène Krief, Pierre Monney

Open access · goldAbstract read
In one paragraph

Article in BMC geriatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Article
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  5. Article
  6. Review
  7. Article
  8. Review
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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

5 authors at 1 institution in 1 country.

Marc HumbertService of Geriatric Medicine and Geriatric Rehabilitation, Department of Medicine, University of Lausanne Medical Center (CHUV), Lausanne, Switzerland. marc.humbert@chuv.ch.
Christophe J BülaService of Geriatric Medicine and Geriatric Rehabilitation, Department of Medicine, University of Lausanne Medical Center (CHUV), Lausanne, Switzerland.
Olivier MullerService of Cardiology, Department of Cardio-Vascular Medicine and Surgery, University of Lausanne Medical Center (CHUV), Lausanne, Switzerland.
Hélène KriefService of Geriatric Medicine and Geriatric Rehabilitation, Department of Medicine, University of Lausanne Medical Center (CHUV), Lausanne, Switzerland.
Pierre MonneyService of Cardiology, Department of Cardio-Vascular Medicine and Surgery, University of Lausanne Medical Center (CHUV), Lausanne, Switzerland.
University of Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTranscatheter aortic valve replacement is increasingly performed in frail older patients who were previously ineligible for a standard surgical procedure. The objectives of this study are to determine delirium incidence, predictors, and relationship with cognitive performance at 3-month follow-up in older patients undergoing aortic valve replacement (AVR).

methodsPatients (N = 93) aged 70 years and older, undergoing transcatheter (TAVR, N = 66) or surgical (SAVR, N = 27) aortic valve replacement in an academic medical center were enrolled in this prospective cohort study. Delirium was assessed using the Confusion Assessment Method (CAM) on postoperative days 1, 2, 3, and 7. Data on patients' socio-demographics, functional status (including instrumental activities of daily living (IADL), and surgical risk scores (including Society of Thoracic Surgeons (STS) risk score), were collected at baseline. Cognitive status was assessed with the Mini-Mental Status Exam (MMSE) and the Clock Drawing Test (CDT) at baseline and 3 months after AVR.

resultsDelirium occurred in 21 (23%) patients, within the first three postoperative days in 95% (20/21) of the cases. Delirium incidence was lower in TAVR (13/66 = 20%) than SAVR (8/27 = 30%) patients, but this difference was not statistically significant (p = .298). Patients with delirium had lower baseline cognitive performance (median MMSE score 27.0 ± 3.0 vs 28.0 ± 3.0, p = .029), lower performance in IADL (7.0 vs 8.0, p = .038), and higher STS risk scores (4.7 ± 2.7 vs 2.9 ± 2.3, p = .020). In multivariate analyses, patients with intermediate (score > 3 to ≤8) and high (score > 8) STS risk scores had 4.3 (95%CI 1.2-15.1, p = .025) and 16.5 (95%CI 2.0-138.2, p = .010), respectively, higher odds of incident delirium compared to patients with low (score ≤ 3) STS risk scores. At 3-month follow-up (N = 77), patients with delirium still had lower MMSE score (27.0 ± 8.0 vs 28.0 ± 2.0, p = .007) but this difference did not remain significant once adjusting for baseline MMSE (β-coefficient 1.11, 95%CI [- 3.03-0.80], p = .248).

conclusionsDelirium occurred in about one in five older patients undergoing AVR, almost essentially within the first three postoperative days. Beside cognitive performance, STS risk score could enhance the identification of high-risk older patients to better target preventative interventions.

Indexed as

DeliriumHeart Valve Prosthesis ImplantationActivities of Daily LivingAgedAged, 80 and overAortic ValveCognitionHumansIncidencePrognosisProspective StudiesRisk AssessmentRisk FactorsTreatment OutcomeAortic stenosisDeliriumSociety of thoracic surgeons risk scoreSurgical aortic valve replacementTranscatheter aortic valve replacement

Identifiers

PMID33653285
PMCPMC7927377
OpenAlexW3115994492

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LicenceCC BY
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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.