Health-Related Quality of Life in Patients With Ventricular Assist Device: Psychometric Evaluation of the German Version of the Quality of Life With a Ventricular Assist Device Questionnaire.

IF 1.7 4区医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS Journal of Cardiovascular Nursing Pub Date : 2024-11-01 Epub Date: 2023-11-22 DOI:10.1097/JCN.0000000000001064

Hannah Spielmann, Katharina Tigges-Limmer, Wolfgang Albert, Christine Spitz-Köberich, Sandra Semmig-Könze, Paulina Staus, Christoph Herrmann-Lingen, Kristin E Sandau, Brynn Okeson, Siegfried Geyer, Christiane Kugler

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Abstract

Background: Ventricular assist device (VAD) implantation has become an alternative treatment for patients with end-stage heart failure. In Germany, valid and reliable instruments to assess health-related quality of life in patients with VAD are lacking.

Objective: The aim of this study was to present the psychometric validation of the German version of the Quality of Life with a Ventricular Assist Device questionnaire.

Methods: In a multicenter, cross-sectional study, 393 participants (mean age, 58.3 years; 85.8% male, 60.3% bridge to transplant, and 72.8% living with VAD for ≤2 years) completed the German Quality of Life with a Ventricular Assist Device questionnaire of physical, emotional, social, cognitive, and meaning/spiritual domains. Item and confirmatory factor analyses were conducted to test item difficulty and discrimination and the underlying structure, respectively. To examine internal consistency, Cronbach α was assessed. Convergent construct validity was tested using the Kansas City Cardiomyopathy Questionnaire and the Patient Health Questionnaire-9. Readability was examined using Flesch Reading Ease index and Vienna Factual Text Formula.

Results: The Quality of Life with a Ventricular Assist Device showed reasonable item difficulty ( Ptotal = .67) and mostly moderate to high discriminatory power ( rit > 0.30). In confirmatory factor analysis, root-mean-square error of approximation (0.07) was acceptable for model fit, but no other indices. Acceptable internal consistency was found ( α ≥ 0.79), with the exception of the cognitive domain ( α = 0.58). The overall questionnaire and single domains demonstrated convergent validity ( r ≥ 0.45, P < .001). The questionnaire showed adequate readability (Flesch Reading Ease, 64.11; Vienna Factual Text Formula, 6.91).

Conclusion: Findings indicate a promising standardized clinical instrument to assess health-related quality of life in patients with VAD.

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使用心室辅助装置患者的健康相关生活质量:使用心室辅助装置问卷的德国版生活质量的心理测量评估

背景:心室辅助装置(VAD)植入已成为终末期心力衰竭患者的替代治疗方法。在德国，缺乏有效和可靠的工具来评估VAD患者与健康相关的生活质量。目的:本研究的目的是提出德文版心室辅助装置生活质量问卷的心理测量学验证。方法:在一项多中心横断面研究中，393名参与者(平均年龄58.3岁;85.8%为男性，60.3%为移植物过渡患者，72.8%为VAD患者(≤2年)，通过心室辅助装置完成了德国生活质量问卷，包括身体、情感、社会、认知和意义/精神领域。采用项目因素分析和验证性因素分析，分别检验项目的难度、辨别性和基础结构。为了检验内部一致性，采用Cronbach α进行评估。采用《堪萨斯城心肌病问卷》和《患者健康问卷-9》检验收敛结构效度。可读性采用Flesch Reading Ease index和Vienna Factual Text Formula进行检验。结果:使用心室辅助装置的生活质量项目难度较合理(Ptotal = 0.67)，多数为中高鉴别力(rit > 0.30)。在验证性因子分析中，近似均方根误差(0.07)可以接受模型拟合，但其他指标不能接受。除认知领域(α = 0.58)外，内部一致性可接受(α≥0.79)。整体问卷和单域问卷具有收敛效度(r≥0.45,P < 0.001)。问卷具有足够的可读性(Flesch Reading Ease, 64.11;维也纳事实文本公式，6.91)。结论:研究结果表明了一种很有前途的标准化临床工具来评估VAD患者与健康相关的生活质量。

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来源期刊

Journal of Cardiovascular Nursing 医学-护理

CiteScore

3.30

自引率

10.00%

发文量

154

审稿时长

>12 weeks

期刊介绍： Official journal of the Preventive Cardiovascular Nurses Association, Journal of Cardiovascular Nursing is one of the leading journals for advanced practice nurses in cardiovascular care, providing thorough coverage of timely topics and information that is extremely practical for daily, on-the-job use. Each issue addresses the physiologic, psychologic, and social needs of cardiovascular patients and their families in a variety of environments. Regular columns include By the Bedside, Progress in Prevention, Pharmacology, Dysrhythmias, and Outcomes Research.