Renal Tubular Acidosis (RTA), medullary sponge kidney, sarcoidosis.Patient's with anatomic abnormalities (calyceal diverticulum).Moderate to severe pain (> or = 5 on BPI pain scale: pain at its worst in the last 24hrs).
All other causes of pain have been eliminated (by clinical judgment if the cause of pain is in doubt: assessment by a family doctor or medical specialist will be obtained).No stone greater than 10 mm in longest diameter Patients with renal colic and non-obstructing renal calculi.O Patients with non-obstructing renal calculi Hypothesis We hypothesize that the removal of non-obstructing renal calculi will decrease or eliminate the participant's pain and will improve their quality of life. Objective and hypothesis Objective To prospectively determine if the removal of non-obstructing renal calculi can reduce or eliminate participant's pain and/or improve their quality of life. In a small (n=13) retrospective study, it was found that ureteroscopic removal of non-obstructing renal calyceal stones achieved complete or partial resolution of pain in all patients. There is however, some evidence that non-obstructing renal calculi located within the renal calyces actually do cause pain. Non-obstructing renal calculi that do not cause renal collecting system dilatation are thought to be painless. This increases the intraluminal pressure of the urinary collecting system and stretches nerve ending in the ureteral mucosa and renal capsule. Pain associated with renal stone disease is typically caused by an obstructing stone that obstructs the flow of urine, which results in renal collecting system dilatation. Additionally, renal stone disease is associated with considerable morbidity including pain. Renal stone disease is a chronic condition with a high recurrence rate. Rationale & background information Renal stone disease is a common condition representing a lifetime occurrence risk of 10% in men and 7% in women. Identification of Principal Investigator: Dr.Title of research project: Evaluation of pain before and after removal of non-obstructing renal calculi.Why Should I Register and Submit Results?.
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