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Inicio Hipertensión y Riesgo Vascular Arterial hypertension of infrequent cause
Journal Information
Vol. 39. Issue 2.
Pages 92-94 (April - June 2022)
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Vol. 39. Issue 2.
Pages 92-94 (April - June 2022)
Clinical case
Arterial hypertension of infrequent cause
Hipertensión arterial secundaria de etiología infrecuente
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171
A. Rosales-Castillo
Corresponding author
anrocas90@hotmail.com

Corresponding author.
, A. Bustos-Merlo
Servicio de Medicina Interna, Hospital Universitario Virgen de las Nieves, Granada, Spain
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Table 1. Comparison of analytical values of the two cases presented.
Abstract

Arterial hypertension is generally classified as primary or essential (90%), and secondary (10%). Infrequent causes of the latter include Cushing's syndrome, classified as ACTH-dependent and independent. A small percentage of ACTH-independent cases are due to ectopic ACTH secretion, generally due to neoplasia, and can present as arterial hypertension and hyperglycaemia that are refractory to pharmacological measures, metabolic alkalosis and hypokalaemia that are difficult to control, but which help guide the initial diagnosis.

We present two clinical cases with a diagnosis of ectopic ACTH secretion secondary to small cell lung carcinoma, in which one of the debut manifestations was unknown, difficult to control arterial hypertension.

Keywords:
Hypertension
Hypokalaemia
ACTH
Neoplasia
Resumen

La hipertensión arterial generalmente se clasifica en primaria o esencial (90%) y secundaria (10%). Entre las causas infrecuentes de esta última se encuentra el síndrome de Cushing, el cual se clasifica en hormona adrenocorticotropa (ACTH) dependiente e independiente. Un pequeño porcentaje de los casos de ACTH independiente son debidos a la secreción ectópica de ACTH, generalmente por neoplasias, pudiendo tener como manifestaciones, hipertensión arterial e hiperglucemia refractarias a medidas farmacológicas, alcalosis metabólica e hipopotasemia de difícil control, que por otra parte, sirven como orientación diagnóstica inicial. Presentamos dos casos clínicos con diagnóstico de secreción ectópica de ACTH secundaria a carcinoma microcítico de pulmón, en los que una de las manifestaciones principales al debut fue una hipertensión arterial no conocida de difícil control.

Palabras clave:
Hipertensión
Hipopotasemia
ACTH
Neoplasia

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