Enuresis as protective factor in vesicoureteral reflux

Area of Science:

• Pediatric Nephrology
• Urology
• Clinical Medicine

Background:

• Vesicoureteral reflux (VUR) is a condition where urine flows backward from the bladder to the kidneys.
• Reflux nephropathy, kidney scarring due to VUR, is a significant concern in pediatric urology.
• The relationship between VUR, enuresis (bedwetting), and the development of reflux nephropathy requires further elucidation.

Purpose of the Study:

• To investigate the association between enuresis and the severity of reflux nephropathy in patients with non-neurologic, non-operated VUR.
• To determine if enuresis influences the degree of renal damage in pediatric VUR patients.

Main Methods:

• Analysis of clinical data from 83 patients diagnosed with non-neurologic, non-operated VUR.
• Comparison of the incidence and severity of reflux nephropathy between patients with and without enuresis.
• Stratification of results based on patient age, particularly comparing children below and above ten years old.

Main Results:

• Patients with enuresis demonstrated a significantly lower degree of reflux nephropathy compared to non-enuretic patients, despite similar VUR characteristics.
• This protective effect of enuresis against nephropathy was more pronounced in older children (above ten years).
• For patients above ten years, renal scarring was observed in 27.8% of refluxing units in enuretic patients versus 76.2% in non-enuretic patients.

Conclusions:

• Lower urinary tract dysfunction plays a crucial role in the pathogenesis of VUR.
• Enuresis may function as a protective mechanism, potentially mitigating the risk and severity of reflux nephropathy.
• Understanding this relationship can inform management strategies for VUR and its complications.