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The study is being completed to compare patient reported outcomes for stent omission vs. placement after using a ureteral access sheath for uncomplicated ureteroscopy. Participants that consent for the study will complete baseline PRO questionnaires. A UAS will be used during surgery, and the size left to the discretion of the surgeon. At the end of the procedure, the urologist will evaluate the ureter for iatrogenic injury, and the ureter will be graded using the Post Ureteroscopic Lesion Scale (PULS). Patients assessed with PULS 0 and PULS 1 will meet 2nd stage eligibility and will be randomized 1:1 to either stent omission or stent placement. When a stent is placed, the stent type and decision to leave a string (tether) will be at the operating urologist's discretion. Hypothesis: \- stent omission arm will be non-inferior to stent placement in Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Interference and Pain Intensity, and have lower 30-day healthcare utilization.

Mini percutaneous nephrolithotripsy is the treatment of choice for kidney stones over 2cm. This procedure commonly uses laser energy for breaking the stones, and among possible laser platforms, Hoyag and thulium fiber laser are FDA approved. Recently, this procedure has also included the use of vacuum assisted renal access sheaths, which allows suction to be employed together with the breaking of stones. This study intends to compare outcomes when using either laser platforms with suction sheaths in participants undergoing mini percutaneous nephrolithotripsy for the treatment of kidney stones.

The objective of the study is to compare the stone free rates with ureteroscopy utilizing the ClearPETRA suction ureteral access sheath, and mini-PCNL; both procedures and ClearPETRA sheaths are standard of care and are used regularly for stone treatment. Our primary objective is to assess the complete stone free rate with both procedures.

The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased production of oxalate by the body, 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 amounts of oxalate for 5 days ingest a soluble form of glycolate and vitamin C collect urine, blood, stool during the dietary and oral dosing portions of the study and also collect breath sample during the oral glycolate test

This is a single-center study that aims to learn more about how two compounds found in food, oxalate and citrate, interact in the body and may influence a person's chances of forming kidney stones. The study will examine changes in urinary oxalate and citrate levels after participants consume potassium citrate.

Dyspepsia is a common problem attributed to gastric sensorimotor dysfunctions ie, delayed, or less frequently rapid gastric emptying (GE), impaired gastric accommodation, and increased gastric sensation. Therapeutic options manage symptoms, and there is no FDA approved medical therapy for dyspepsia. There is a need for better objective understanding of sensorimotor dysfunction in dyspepsia, as well as noninvasive, efficacious, safe, and inexpensive treatments for dyspepsia. The purpose of this research is to identify disturbances and characterize phenotypes in patients with functional dyspepsia, and to assess the correlations between symptoms (during the manometry and in daily life), gastric emptying, electrical activity (BSGM), and pressure activity (manometry).

The goal of this pilot clinical trial is to learn whether meditation can help improve recovery in children and adults having surgery for kidney stones. The main questions it aims to answer are: * Does meditation around the time of surgery improve pain and anxiety in patients undergoing kidney stone surgery (ureteroscopy)? * Is a meditation program around the time of surgery feasible for patients having kidney stone surgery (ureteroscopy)? Participants will be randomly assigned to the meditation group and the control group to understand how meditation affects recovery after surgery. Participants will be asked to: * Complete a health history form * Complete questionnaires about pain and mood before surgery and certain days after surgery * Those in the meditation group will learn and practice a daily 20-minute meditation for 2-4 weeks before surgery and 2 weeks after surgery * Those in the meditation group will be asked to provide feedback of the meditation program after completing the last questionnaire

This research study is being conducted to assess the ability and efficiency of two laser systems to break up kidney stones during ureteroscopy with laser lithotripsy for kidney stone treatment.

Background. Abdominal distention is produced by an abnormal somatic postural tone. The authors developed an original biofeedback technique. In a randomized, placebo-controlled trial the authors demonstrated the superiority of biofeedback over placebo for the treatment of abdominal distention. However, the technique is technically complex and unpractical. Aim. To prove the efficacy of a noninstrumental biofeedback technique, transmitted by a standard training program, for the treatment of abdominal distension in different centers. Selection criteria. Episodes of visible abdominal distension. Intervention. Patients will be randomized into biofeedback and placebo groups. Three sessions of either biofeedback or placebo intervention will be performed during the first 3 weeks of the intervention period. Biofeedback: Patients will be taught to control abdominal and thoracic muscular activity by providing instructions using an original video support. In each center one operator will receive a standard training on how to deliver the noninstrumental biofeedback treatment. Patients will be instructed to perform the same exercises before and after breakfast, lunch and dinner during the 4-week intervention period. Placebo: Sham measurements of abdominal and thoracic motion will be performed, and a pill of placebo containing 0.21 g glucose will be administered; patients will be instructed to take a pill of placebo before breakfast, lunch and dinner during the 4-week intervention period.

The purpose of this study is to compare Moses 2.0 pulse modulation technology and the standard high powered Holmium Laser lithotripsy and how it will affect time in the operating room, time using the laser, laser energy, and stone free rates. Currently Moses 2.0 laser technology is FDA approved and currently used in practice since 2021. No study to this date has compared Moses 2.0 without pulse modulation laser technology to Moses 2.0 with pulse modulation laser technology. The study will be including kidney and ureteral stones (a kidney stone located in the tube between the kidney and the bladder) that are 6mm and greater, but less than 20 mm in size undergoing ureteroscopic treatment. High powered lasers are used for "dusting". Dusting is when a laser is used to break a stone down into tiny fragments that are able to pass through the urine.

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

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