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. 2022 Jun;13(3):675-684.
doi: 10.1007/s41999-022-00618-4. Epub 2022 Feb 11.

Orthostatic intolerance: a frailty marker for older adults

Arzu Okyar Baş  1 , Merve Güner Oytun  2 , Zeynep Kahyaoğlu  2 , Süheyla Çöteli  2 , Serdar Ceylan  2 , İlker Boğa  2 , Burcu Balam Doğu  2 , Mustafa Cankurtaran  2 , Meltem Gülhan Halil  2
Affiliations

Orthostatic intolerance: a frailty marker for older adults

Arzu Okyar Baş et al. Eur Geriatr Med. 2022 Jun.

Abstract

Purpose: Frailty, orthostatic blood pressure changes (OBPC), and orthostatic intolerance syndrome (OIS) are common in geriatric patients. However, the results of the studies evaluating the relationship between these entities are discordant. We aimed to investigate the association between frailty and OIS with or without OBPC.

Methods: Comprehensive geriatric assessment (CGA), frailty assessment, OBPC evaluations in the active-standing test (1st, 3rd, 5th, and 10th min), OIS investigation both in history before the test (self-reported OIS) and emerged during the active-standing test, and sarcopenia assessment via BIA and handgrip strength (HGS) were performed in 102 geriatric outpatients.

Results: Patients were divided into three categories according to their frailty status (non-frail, prefrail, and frail) by Modified Fried Frailty Index (FFI) and Clinical Frailty Scale (CFS). Prevalence of self-reported OIS and OIS during the test were statistically higher in the frail group assessed by both frailty scales (P value: 0.001 for CFS, P value < 0.0001 for FFI, and P value: 0.001 for CFS, P value: 0.007 for FFI, respectively). Logistic regression analysis showed that OIS significantly increased frailty assessed both by FFI and CFS, when adjusted for age, sex, comorbidities, CGA, and sarcopenia (For FFI, OR: 19.37; 95% CI: 2.38-157.14; P value: 0.006 and for CFS OR: 4.32; 95% CI: 1.184-11.47; P value: 0.003, respectively).

Conclusion: To the best of our knowledge, this is the first study defining OIS as symptoms both self-reported and provoked during the test, and showed a strong correlation between OIS and frailty. OIS may be defined as a multifactorial and independent marker for frailty, regardless of OBPC. Further prospective investigations are warranted to support the relationships between OIS and frailty.

Keywords: Frailty; Older adults; Orthostatic blood pressure changes; Orthostatic intolerance.

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