Clinical Management in Systemic Type Pseudohypoaldosteronism Due to SCNN1B Variant and Literature Review

Systemic pseudohypoaldosteronism (PHA) is a rare, salt-wasting syndrome that is caused by inactivating variants in genes encoding epithelial sodium channel subunits. Hyponatremia, hyperkalemia, metabolic acidosis, increased aldosterone and renin levels are expected findings in PHA. Clinical manageme...

Full description

Saved in:
Bibliographic Details
Main Authors: Gülin Karacan Küçükali, Semra Çetinkaya, Gaffari Tunç, M. Melek Oğuz, Nurullah Çelik, Kardelen Yağmur Akkaş, Saliha Şenel, Naz Güleray Lafcı, Şenay Savaş Erdeve
Format: article
Language:EN
Published: Galenos Yayincilik 2021
Subjects:
Online Access:https://doaj.org/article/16f0b1be4f934f21bc9fc972d8e4c382
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Systemic pseudohypoaldosteronism (PHA) is a rare, salt-wasting syndrome that is caused by inactivating variants in genes encoding epithelial sodium channel subunits. Hyponatremia, hyperkalemia, metabolic acidosis, increased aldosterone and renin levels are expected findings in PHA. Clinical management is challenging due to high dose oral replacement therapy. Furthermore, patients with systemic PHA require life-long therapy. Here we report a patient with systemic PHA due to SCNN1B variant whose hyponatremia and hyperkalemia was detected at the 24th hour of life. Hyperkalemia did not improve with conventional treatments and dialysis was required. He also developed myocarditis and hypertension in follow-up. Challenges for diagnosis and treatment in this patient are discussed herein. In addition, published evidence concerning common features of patients with SCNN1B variant are reviewed.