SinglePass Kronos Electrocautery Device for Closure After Percutaneous Medical Kidney Biopsy: A Series of Five Case Reports

Percutaneous kidney biopsies, including coaxial needle biopsy (CNB), have become the preferred method for obtaining tissue samples to supplement laboratory and imaging data in diagnosing or characterizing various renal conditions. Despite the advent of intraprocedural computed tomography scans or ultrasound image guidance, as well as various "plugging" techniques, bleeding remains a frequent and potentially highly morbid complication, particularly in patients with bleeding risks. As such, postbiopsy bleeding is also a primary driver of extended patient monitoring and, in significant cases, results in additional imaging, intervention, and even surgery. Death, although very rare, also occurs. We reported a series of 5 image-guided kidney biopsy cases that used a new electrocautery hemostasis device called SinglePass Kronos for hemostasis and tract closure. All biopsy procedures were successful, and there were no complications through 30 days following CNB. Postprocedure imaging confirmed the absence of bleeding in all 5 cases. The SinglePass Kronos device is a potentially valuable tool in minimizing bleeding complications in percutaneous solid organ biopsy procedures and has particular utility in high-risk biopsies such as kidney biopsies. Larger-scale studies of this new device may be warranted.