ADPK Disease Pearl

 


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AUTOSOMAL DOMINANT POLYCYSTIC KIDNEY DISEASE  

 
The most common of ALL life-threatening, genetic diseases in the United States 
Affects >12 million people worldwide 
It is the third leading cause of end state renal disease(ESRD) in the United States. ( Number one being Diabetes Mellitus. Number two is hypertension.) 
Symptoms/ Signs 

 
    Abdominal pain(60) 
    Flank masses (20%) 
    Urinary tract infection (30 to 50) 
    Hypertension (50 to 70) 
    Nephrolithiasis (30%) 
    Hepatic cysts (10 % <30 years old; 40% > 60 years old) 
    Intracranial aneurysms (recommend screening only if there is a strong       
    family history
), predominantly distributed in the middle cerebral artery. 

 

Diagnosis 

 
    75% of the time with positive family history 
    Requires the presence of at least 3 cysts bilaterally in the ultrasound but a 
    negative ultrasound cannot exclude ADPKD until the patient is > 30
    years old

 

Treatment 

 
    Hypertension: angiotensin converting enzyme inhibitor or Beta-blocker 
    Urinary Tract Infection: Lipid soluble antibiotics (bactrim, ciprofloxacin) 
    for better cyst penetration
    End Stage Renal Disease: Dialysis/transplantation 

 

Precaution 

 
    Avoid caffeine containing substances as they may induce the cysts to 
    expand/grow faster. 
    In most individuals cysts may not be apparent before the age of 30.

 
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