Loyola University Medical Center

Gottlieb Memorial Hospital

MacNeal Hospital

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NCT04556396

Intraoperative Cone-beam CT for Percutaneous Nephrolithotomy

Official Title:

Intraoperative Cone-beam CT for Percutaneous Nephrolithotomy

Summary

Percutaneous nephrolithotomy (PCNL) is a first-line treatment for kidney stones >2cm. Frequently, patients require multiple procedures to address their stone burden. The decision to proceed with a second-look procedure is based on follow-up CT imaging, which is obtained postoperatively. In this study, we propose the use of a portable CT scan technology to obtain follow-up imaging while the patient is still under anesthesia for the initial procedure. The goal of this study is to determine whether this allows the surgeon to identify residual fragments and render the patient stone-free within a single anesthetic event.

Eligibility

Inclusion Criteria:

1. Patients >18 years old
2. Scheduled for percutaneous nephrolithotomy with stone fragmentation (laser/ultrasonic/mechanical)
3. For the prospective intervention arm, willingness to consent to participate in the study

Exclusion Criteria:

1. Patients whose habitus does not allow for the use of the cone beam CT machine
2. Patients whose stones only reside within the mid or distal ureter(s) and thus would not be easily imaged with cone beam CT
3. Patients who have had lithotripsy on their renal unit within the prior 90 days
4. Pregnant patients

Disease(s) and\or Condition(s)

Nephrolithiasis

Primary Purpose
  • TREATMENT
Intervention/Treatment
    • Type: DIAGNOSTIC_TEST
    • Name: Cone beam CT
    • Description: On-table CT scan in the operating room to determine residual kidney stone burden at end of procedure
    • Arm Group Labels: Intervention arm
Sponsor
  • Loyola University