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Calculi clinical trials

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NCT ID: NCT06436235 Not yet recruiting - Kidney Stone Clinical Trials

Kidney Stone Inflammation

Start date: May 31, 2024
Phase:
Study type: Observational

This observational study aims to look at the connections between kidney stones, insulin resistance, and inflammation. The researchers hypothesize that people who form calcium kidney stones and have insulin resistance may have higher levels of inflammation because they have more visceral fat (fat around the abdominal organs). The study will recruit 20 people who have had calcium kidney stones but don't have diabetes, and 20 healthy people who haven't had kidney stones. All the participants will come to the research center at the University of Chicago Medicine. Participants will have a dual-energy X-ray absorptiometry (DEXA) scan to measure their visceral fat, and give blood and urine samples. The blood will be tested for insulin resistance, inflammatory markers, and other metabolic factors. The urine will be analyzed for substances that increase kidney stone risk. The main goal is to see if the kidney stone formers with insulin resistance have more visceral fat compared to those without insulin resistance and the healthy participants. The researchers will also compare inflammatory marker levels between groups, and look at how visceral fat, inflammatory markers, insulin resistance, and urine stone risk factors are related. The findings may help explain how kidney stones are connected to metabolic conditions like diabetes and cardiovascular disease. Researchers hope this information will help identify stone formers at risk early and develop preventive treatments in the future.

NCT ID: NCT06412900 Not yet recruiting - Urolithiasis Clinical Trials

Radiomics and Image Segmentation of Urinary Stones by Artificial Intelligence

RISUS_AI
Start date: May 15, 2024
Phase:
Study type: Observational [Patient Registry]

Kidney stone disease causes significant morbidity, and stones obstructing the ureter can have serious consequences. Imaging diagnostics with computed tomography (CT) are crucial for diagnosis, treatment selection, and follow-up. Segmentation of CT images can provide objective data on stone burden and signs of obstruction. Artificial intelligence (AI) can automate such segmentation but can also be used for the diagnosis of stone disease and obstruction. In this project, the aim is to investigate if: Manual segmentation of CT scans can provide more accurate information about kidney stone disease compared to conventional interpretation. AI segmentation yields valid results compared to manual segmentation. AI can detect ureteral stones and obstruction or predict spontaneous passage.

NCT ID: NCT06358482 Completed - Dental Plaque Clinical Trials

Electric Toothbrush Efficacy in Preventing Dental Plaque Development

E-TOOTH
Start date: January 30, 2023
Phase: N/A
Study type: Interventional

The present study will be the first to compared dental plaque quantitation between an oscillating-rotating electric toothbrush and a manual toothbrush with a new QLF technology.

NCT ID: NCT06349668 Recruiting - Renal Cancer Clinical Trials

Spinal Morphine or Intravenous Lidocaine in Robot-assisted Upper Urologic Surgery

SMILe
Start date: April 9, 2024
Phase: Phase 3
Study type: Interventional

The goal of this clinical trial is to learn whether the addition of spinal analgesia leads to superior recovery in patients undergoing robotic-assisted laparoscopic upper urinary tract surgery under general anesthesia. The main questions it aims to answer are: - Is the decrease in wellbeing as quantified by the patient-centered outcome scale "Quality of Recovery 15" (QoR-15), from baseline to the first day after surgery (POD 1), at least 8.0 points less in patients receiving spinal analgesia in addition to general anesthesia? - Does spinal analgesia result in improved recovery as quantified by QoR-15 at POD 7, the incidence of postoperative pain at rest and at mobilization, nausea and vomiting, the need for opioid analgesics, time out-of-bed, length of stay and the incidence of complications? - Does spinal analgesia increase workload in the OR, as quantified by time from arrival in the OR to start of surgery? - Does spinal analgesia result in an increased incidence of hypotension and cardiac dysfunction during surgery, as well as an increased incidence of pruritus after surgery? Participants will be randomized to receive either spinal analgesia with bupivacaine and morphine preoperatively or an intravenous infusion with lidocaine intraoperatively. QoR-15 and other markers of recovery will be registered using structured interviews preoperatively, at POD1 and POD7. In addition, patients will record pain at rest and at mobilization three times daily in a diary. In a subgroup of patients advanced hemodynamic parameters will be recorded using pulse-contour analysis before, during and after surgery. Blood samples will also be collected in these patients at fixed intervals and analyzed for amongst others inflammation and cardiac dysfunction.

NCT ID: NCT06331546 Recruiting - Healthy Clinical Trials

Gut Oxalate Absorption in Calcium Oxalate Stone Disease

Start date: April 17, 2024
Phase: N/A
Study type: Interventional

The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased absorption of dietary oxalate, which would lead to increased urinary excretion of oxalate. The study will recruit adult patients with a history of calcium oxalate kidney stones and healthy volunteers without kidney stones. Participants will - ingest fixed diets containing low and moderately high amounts of oxalate for 5 days at a time - ingest a soluble form of oxalate and sugar preparations to test gut permeability - collect urine, blood, stool and breath sample during the fixed diets and the soluble oxalate test

NCT ID: NCT06330701 Recruiting - Kidney Calculi Clinical Trials

Stone Access and Removal (STAR) Study

STAR
Start date: January 18, 2024
Phase: N/A
Study type: Interventional

The purpose of the study is to assess procedural completion, the post-operative stone clearance and the safety profile following robotic mini-Percutaneous Nephrolithotomy (PCNL) performed with the MONARCH Platform, Urology.

NCT ID: NCT06330246 Recruiting - Urolithiasis Clinical Trials

O. Formigenes Colonization in Calcium Oxalate Kidney Stone Disease

Start date: April 17, 2024
Phase: N/A
Study type: Interventional

The goal of this trial is to test if colonization with the gut bacteria Oxalobacter formigenes leads to a reduction in urinary oxalate excretion in patients with calcium oxalate kidney stone disease. The study will recruit adult participants with a history of calcium oxalate kidney stones who are not colonized with Oxalobacter formigenes. Participants will - ingest fixed diets containing low and moderately high amounts of oxalate for 4 days at a time - collect urine, blood and stool samples during the fixed diets - ingest a preparation of live Oxalobacter formigenes to induce colonization with Oxalobacter formigenes

NCT ID: NCT06320860 Enrolling by invitation - Kidney Calculi Clinical Trials

FlexStone Enabled Kidney Stone Retrieval

Start date: March 8, 2024
Phase: N/A
Study type: Interventional

This study investigates if additional basket control in helpful during retrieval of kidney stones especially those that are difficult to reach for standard baskets.

NCT ID: NCT06306222 Recruiting - Kidney Stone Clinical Trials

Thulium Fiber Laser vs. Holmium:YAG Laser for the Ureteroscopic Treatment of Patients With Urinary Stone Disease

Start date: November 23, 2023
Phase: N/A
Study type: Interventional

This is a randomized controlled trial which aims to compare the efficacy and safety of Thulium fiber laser (TFL) and holmium:yttrium-aluminum-garnet (Ho:YAG) laser ablation during the treatment of upper urinary tract stone disease with flexible ureteroscopy, demonstrating clinical superiority of TFL.

NCT ID: NCT06288022 Not yet recruiting - Safety Issues Clinical Trials

Comparison of Total Tubeless Mini-PCNL Versus Tubeless Mini-PCNL

Start date: April 1, 2024
Phase: N/A
Study type: Interventional

Limited literature has focused on the use of totally tubeless mini-percutaneous nephrolithotomy (Mini-PCNL) for the treatment of large renal stones. This Randomized Controlled trial aims to compare complication and safety of Mini-PCNL between total tubeless and tubeless Mini-PCNL.