Primary hyperoxaluria is a rare genetic disorder with no cure that produces excessive oxalate, leading to kidney stones, kidney damage, and potentially kidney failure. While early treatment can slow disease progression, many patients experience decades of symptoms before receiving a definitive diagnosis.
Disease Types and Progression
Primary hyperoxaluria (PH) is categorized into three types based on abnormalities in three different genes, all of which result in increased production and urinary excretion of oxalate. The condition causes too much oxalate to build up in kidneys and other parts of the body. People living with PH either cannot make the enzyme needed to prevent oxalate buildup or don’t make enough of it. Without early diagnosis and treatment, PH1 patients are at risk of developing kidney failure. Many people with PH2 can maintain normal kidney function, but up to 1 in 3 can progress to kidney failure. PH3 is the least common and mildest form and rarely causes kidney failure.
Diagnosis and Early Treatment
Diagnoses often occur when healthcare providers notice recurrent kidney stones and investigate further. Healthcare providers can order an ultrasound to detect kidney calcification, but definitive diagnosis requires genetic testing or finding oxalate in urine or plasma. Those diagnosed later in life face worse outcomes because of long-term effects of kidney stones, infections, and other stresses from oxalate buildup, including bone disease and anemia.
Management and Quality of Life
The main recommendation for controlling symptoms is significant fluid intake to lower oxalate levels and prevent crystallization in kidneys. Dietary changes can help—some healthcare providers suggest avoiding high-oxalate foods like chocolate, nuts and spinach, and limiting animal protein. Patients experience disrupted sleep and frequent bathroom trips, making accommodations from schools and employers important. Because living with PH symptoms takes a toll on mental health, patients should work with their care teams to find mental and behavioral health providers and support groups. Early diagnosis and treatment are extremely important because they help hold off or prevent disease progression. Advances in genetic testing have significantly lowered the average age at diagnosis for PH.
This article is an AI-assisted summary. All facts and figures are drawn from the original report: https://us.headtopics.com/news/living-with-primary-hyperoxaluria-78047208