Depression and Parkinson disease
Correspondencia: Dr. José M.ª Errea Abad. Servicio de Neurología. Hospital Comarcal de Barbastro. Carretera Nacional, km 240. E-22300 Barbastro, Huesca.
Objective: Depression occurs more often in Parkinson's disease (PD) than in other chronic illnesses with important disability. The relationship between the depression level and some clinical features of PD remains controversial. Frequency of depression in these patients has been estimated and relationship between this symptom with some clinical features of PD.
Methods: A diagnosis of PD was taken according to the United Kingdom Parkinson's Disease Society Brain Bank criteria. Depression status was rated with Geriatric Depression Scale (GDS).
Results: Sixty-two patients (56%), 24 male and 38 female, were depressed at the time of study. The frequency of depression was higher in female (61% vs 39%, p < 0.05) and younger patients with a significant difference (p < 0.001). 53.4% of the patients became depressed previous of beginning PD symptoms, being 71% female (p < 0.05). Patients with depression had had PD longer than patients without depression (7.7 vs 5.3 years old, respectively; p < 0.05). Patients with depression were found to be more affected on motor rating scales (p < 0.01).
Conclusions: Depression was found in 56% of PD patients, with female predominance (61%). Frequency of depression was higher in younger patients. Depression was associated with duration of PD and an inverse relationship between depression and cognitive status was found.
Resultados Un total de 62 pacientes (56%), 24 varones y 38 mujeres, padecían depresión en el momento del estudio. Un 61% de las mujeres estaban deprimidas, por un 39% de varones (p< 0,05). Los pacientes más jóvenes presentaron una frecuencia de depresión significativamente superior a la del resto de pacientes (p< 0,001). Un 53,4% referían depresión previa al inicio de la EP, siendo el 71% mujeres (p< 0,05). Los pacientes deprimidos tenían mayor duración de la enfermedad que los no deprimidos (7,7 por 5,3 años, respectivamente; p< 0,05). Existía un mayor deterioro funcional en los pacientes con depresión (p< 0,01).
Conclusiones El 56% de los pacientes con EP presentan depresión, con predominio significativo en las mujeres (61%). Los pacientes jóvenes son los más frecuentemente afectados por este síndrome. Encontramos una asociación positiva entre depresión y duración de la enfermedad y negativa respecto al rendimiento cognoscitivo