Renal dysfunction can occur in advanced-stage Duchenne muscular dystrophy

Area of Science:

• Nephrology
• Cardiology
• Genetics

Background:

• Improved treatments have increased survival for Duchenne muscular dystrophy (DMD) patients beyond adolescence.
• Advanced-stage DMD patients face a significant risk of developing renal dysfunction.
• Understanding long-term renal outcomes is crucial for managing these patients.

Purpose of the Study:

• To analyze long-term renal function outcomes in advanced-stage DMD patients.
• To identify risk factors associated with renal dysfunction in this population.
• To investigate the relationship between cardiac and renal health in DMD.

Main Methods:

• Fifty-one advanced-stage DMD patients were categorized into three age groups: <20, 20-29, and ≥30 years.
• Serum cystatin C (CysC) levels were measured and compared across the age groups.
• Cardiac function was assessed in relation to CysC levels in the oldest group.

Main Results:

• Median serum CysC levels differed significantly among age groups (P = .003).
• Patients aged ≥30 years showed a notable association between elevated CysC and decreased cardiac function (P = .014).
• Five out of nine patients in the ≥30 years group exhibited these combined issues.

Conclusions:

• An association exists between cardiac and renal dysfunction in advanced-stage DMD.
• Age is a factor in the manifestation of renal and cardiac complications in DMD.
• Further research is warranted to explore the mechanisms underlying cardiac-renal interactions in DMD.