ODP130 Zoledronate-Induced Acute Tubular Necrosis With Baseline Normal Renal Function: A Rare Phenomenon
Abstract
Abstract Introduction Zoledronate is an intravenous bisphosphonate that is commonly used to decrease bone resorption in patients with osteoporosis. The incidence of acute tubular necrosis (ATN) using zoledronate in patients with normal renal function is rare. Herein, we report the occurrence of severe ATN following treatment with a single zoledronate infusion in a patient with osteoporosis and normal renal function. Case Presentation A 51-year-old female with hypertension, well-controlled type 2 diabetes c/b gastroparesis without nephropathy(HbA1c6.8%), status-post hysterectomy, and bilateral oophorectomy, who was recently diagnosed with osteoporosis. Bone densitometry with Hologic revealed T scores of -2.8 at the spine and a T score of - 0.9 at the left hip. Her medications included lisinopril, metformin, and empagliflozin. Due to a history of gastroparesis, zoledronate was chosen as the preferred treatment. Pre-infusion blood work showed: a creatinine of 0.92 (0.5-1.1 mg/dl), 25-hydroxyvitamin-D 37.8 (30-100 NG/ml), calcium 8.9 (8.5-10.5mg/dl) and urine microalbumin 14 (<30 mg/g). Two days after the infusion, the patient developed emesis, diarrhea, oliguria, and fevers. She was evaluated in the emergency room and found to have acute renal failure (creatinine 10 mg/dL). She was given three liters of intravenous fluids with no improvement in urine output. Microscopic evaluation of spun urine revealed non-dysmorphic RBCs and numerous muddy brown granular casts consistent with…
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