About this trial
Patients with renal masses eligible to partial nephrectomy often require arterial ischemia to control or prevent blood loss during this surgical procedure. This study aims to determine the safety and efficacy of renal cryoablation at the tumor bed, as a substitute measure or technique vs total or selective arterial renal ischemia.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients with ages between 45-90-year-old.
Renal tumor ≤ 7 cm in the greatest extension, >50% exophitic.
Disqualifiers
Prior renal surgery
M1 Disease
Trial design
Single group
Treatments tested in this trial
Cryoablation Assisted Partial Nephrectomy
DeviceCryoablation Assisted Partial Nephrectomy is monitored under Ultrasound guidance, A Cryoablation machine (FDA Approved Device) along with its Cryoprobes are used in the study The Cryoprobes are placed in close to the endophytic tumor margins. The tumor boundary area will undergo one freezing cycles. Tumor is excised after 5 minutes of freezing cycle. Thawing process is passive, renal defect repair is conducted during thawing process.
Treatment groups
Trial outcomes
Primary outcomes
Recurrence - Oncological Control
Recurrence at Site of Excision or within 1 cm of margin or Development of Metastasis
Secondary outcomes
Local Re-Intervention
Either subsequent ablation or surgical exploration or surgical kidney removal
Development or Progression of Chronic Kidney Disease (CKD)
De-Novo emergence of CDK or changes in CKD overtime based on variation from baseline. The international classification for CKD defined by serum estimated Glomerular Filtration Rates (GFR) will be used as measurement instrument using the following definitions: GFR categories in CKD G1 ≥90 Normal or high G2 60-89 Mildly decreased\* G3a 45-59 Mildly to moderately decreased G3b 30-44 Moderately to severely decreased
Incidence of Metastatic disease
patients will be evaluated using imaging studies at fixed intervals as follows: at 6 months Renal Ultrasound at 1 year CT Urogram at 18 Months, 24 months and yearly thereafter with Renal Ultrasound CT Urograms will be performed as needed for cause
Survival
If a patient expiries during the study interval we would procure the death certificate and do our best to determine cause of death
Sponsors and contacts
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