SECONDARY HYPERTENSION-SECONDARY HYPERALDOSTERONISM

SUMMARY

1. Caused by disease in the kidneys or a restricted blood flow in the renal arteries.

2. Decreased renal blood flow => increased renin => increased angiotensin II => increased aldosterone.

3. Characterised by hypertension, hypokalemia, metabolic alkalosis and increased serum renin.

4. Common causes: renovascular disease, can be due to either atherosclerotic renal artery stenosis or fibromuscular dysplasia.

Reference(s)

Wilkinson, I. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press.
Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
Therapeutic Guidelines. Melbourne: Therapeutic Guidelines Limited. https://www.tg.org.au [Accessed 2021].