Medicina clinica · 2021
WITHDRAWN: Liddle syndrome: A case report.
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Jin Yueping, Qiu Wei, Yao Jianping
Аннотация
INTRODUCTION: Liddle syndrome is an autosomal dominant hereditary disease caused by a single gene mutation. Typical clinical manifestations are early-onset hypertension and hypokalaemia and can be treated using ENaC blockers (amiloride and aminopterin).
PATIENTS AND METHODS: This report describes a 17-year-old male with hypertension and hypokalaemia. We performed a Captopril inhibition test and a postural stimulation test for the diagnosis and typing of primary aldosteronism.
RESULTS: The serum renin was low, and aldosterone was high, so the patient was initially misdiagnosed as primary aldosteronism. After a genetic analysis, a diagnosis of Liddle syndrome was made due to the presence of an SCNN1B p.Pro617Ser mutation. After diagnosis, the patient was administered one tablet of amiloride twice a day (each tablet contains 2.5mg of amiloride hydrochloride and 25mg of hydrochlorothiazide 25mg). The patient's blood pressure (average of 120-135/70-80mmHg) and serum potassium levels (3.6-4.0mmol/L) returned to normal and were well-controlled after treatment.
DISCUSSION: The patient is an atypical case of Liddle syndrome; genetic analysis is helpful and essential for diagnosis.
PATIENTS AND METHODS: This report describes a 17-year-old male with hypertension and hypokalaemia. We performed a Captopril inhibition test and a postural stimulation test for the diagnosis and typing of primary aldosteronism.
RESULTS: The serum renin was low, and aldosterone was high, so the patient was initially misdiagnosed as primary aldosteronism. After a genetic analysis, a diagnosis of Liddle syndrome was made due to the presence of an SCNN1B p.Pro617Ser mutation. After diagnosis, the patient was administered one tablet of amiloride twice a day (each tablet contains 2.5mg of amiloride hydrochloride and 25mg of hydrochlorothiazide 25mg). The patient's blood pressure (average of 120-135/70-80mmHg) and serum potassium levels (3.6-4.0mmol/L) returned to normal and were well-controlled after treatment.
DISCUSSION: The patient is an atypical case of Liddle syndrome; genetic analysis is helpful and essential for diagnosis.