Staged treatment for substantial bilateral calcium carbonate nephrolithiasis in vegan patient.

Calcium carbonate (CaCO3), or calcite, stones average 0.15% of annual nephrolithiasis cases. The authors report a 53 year old female, following a 15 year vegan diet, presenting with left flank pain and later found to have bilateral extensive staghorn renal calculi requiring multiple procedures over the course of months.

Entrapped Crown of Orbital Atherectomy Device by Intimal Tissue Entanglement During Peripheral Intervention.

Orbital atherectomy is a commonly used procedure for peripheral arterial disease. Crown entrapment is a rare but potentially dangerous complication of orbital atherectomy. We describe a case of crown entrapment by markedly excessive atheromatous intimal tissue attachment to the device and an innovative retrieval technique that may minimize vascular injury.