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Longitudinal prevalence of neurogenic orthostatic hypotension in the idiopathic Parkinson Progression Marker Initiative (PPMI) cohort.
Beach, Paul; McKay, J Lucas.
Afiliación
  • Beach P; Emory University School of Medicine, Department of Neurology, United States of America. Electronic address: pabeach@emory.edu.
  • McKay JL; Emory University School of Medicine, Department of Neurology, United States of America; Emory University School of Medicine, Department of Biomedical Informatics, United States of America.
Auton Neurosci ; 253: 103173, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38692034
ABSTRACT

BACKGROUND:

Reported orthostatic hypotension (OH) prevalence in Parkinson's disease (PD) varies widely, with few studies evaluating specifically neurogenic-OH (nOH). The ratio of orthostatic heart rate (HR) to systolic blood pressure (SBP) change (Δ) is a valid screening method to stratify nOH/non-nOH but has had minimal epidemiologic application.

OBJECTIVE:

To estimate the prevalence of nOH and non-nOH in the PPMI using the ΔHR/ΔSBP ratio and examine associations between nOH and various motor and non-motor measures.

METHODS:

Longitudinal orthostatic vitals and motor and non-motor measures were extracted (baseline-month 48). Patients were consensus criteria classified as OH+/-, with ΔHR/ΔSBP sub-classification to nOH (ΔHR/ΔSBP < 0.5) or non-nOH (ratio ≥ 0.5). Prevalence was determined across visits. Independent linear mixed models tested associations between nOH/non-nOH and clinical variables.

RESULTS:

Of N = 907 PD with baseline orthostatic vitals, 3.9 % and 1.8 % exhibited nOH and non-nOH, respectively. Prevalence of nOH/non-nOH increased yearly (P = 0.012, chi-square), though with modest magnitude (baseline 5.6 % [95 % CI 4.3-7.3 %]; month 48 8.6 % [6.4-11.5 %]). nOH patients were older than PD with no OH and nOH was associated with greater impairment of motor and independent functioning than non-nOH/OH- groups. Cognitive function and typical OH symptoms were worse in PD + OH, generally.

CONCLUSIONS:

nOH prevalence was greater than non-nOH in the PPMI early PD cohort, with modest prevalence increase over time. Our findings are consistent with prior studies of large cohorts that evaluated nOH, specifically. Those with early PD and nOH were likelier to be older and suffer from greater motor and functional impairment, but OH presence was generally associated with more cognitive impairment.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Enfermedad de Parkinson / Progresión de la Enfermedad / Hipotensión Ortostática Límite: Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Auton Neurosci Asunto de la revista: NEUROLOGIA Año: 2024 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Enfermedad de Parkinson / Progresión de la Enfermedad / Hipotensión Ortostática Límite: Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Auton Neurosci Asunto de la revista: NEUROLOGIA Año: 2024 Tipo del documento: Article