About this trial
The purpose of this study to learn if high-dose dexamethasone, a type of long-acting steroid, works to decrease urinary symptoms and pain after ureteroscopy and stent placement for kidney stones. The main question it aims to answer is:
1\) Does high-dose steroid change the quality of life score on day 2 after surgery
Researchers will compare high-dose of dexamethasone (20 mg) to a standard dose of dexamethasone (4 mg) to see if a higher dose of the drug will help with urinary symptoms and pain
Participants will:
1. randomly receive 20 mg or 4 mg of dexamethasone (20 mg) at the time of surgery 2. fill out a questionnaire day 1 and day 2 after surgery 3. fill out a medication diary for one week after surgery 4. visit the clinic on day 2 after surgery for checkup 5. visit the clinic on day 4-7 after surgery for check up
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 18-70 years old
Patients who are undergoing unilateral retrograde ureteroscopy (semi-rigid or flexible) with planned ureteral stent placement for treatment of renal/ureteral stones
Patients who can read and understand English
Patients who can follow up post-operatively within 7 days at Houston Methodist Hospital
Disqualifiers
Untreated UTI
HbA1c ≥6.5 on preoperative testing
Patients with prior diagnosis of any type of diabetes mellitus
Patients with immunosuppression, including chronic corticosteroid use
Trial design
Parallel
Treatments tested in this trial
Dexamethasone Sodium Phosphate Injection 20 mg
Drugdexamethasone 20 mg diluted in 50 mL of normal saline administered by intravenous drip after induction of anesthesia
Dexamethasone Sodium Phosphate Injection 4mg
Drugdexamethasone 4 mg diluted in 50 mL of normal saline administered by intravenous drip after induction of anesthesia
Treatment groups
Trial outcomes
Primary outcomes
Global Quality of Life Score of Ureteral Stent Symptom Questionnaire (USSQ)
A 1 to 7 rating scale used to measure survey participants' feeling if they were advised to have another stent inserted, from 1 = delighted to 7 = terrible.
Secondary outcomes
Urinary Index Score of the USSQ
This domain assesses urinary symptoms (e.g., urgency, frequency, dysuria) and consists of multiple questions, each answered using a Likert-type scale. Higher scores indicate greater symptom severity.
Pain Index Score of the USSQ
This domain assesses pain (e.g., flank pain, suprapubic discomfort) and consists of multiple questions, each answered using a Likert-type scale. Higher scores indicate greater symptom severity.
General Health Index Score of the USSQ
This domain assesses general health (overall health perception and well-being) and consists of multiple questions, each answered using a Likert-type scale. Higher scores indicate greater symptom severity.
Work Performance Index Score of the USSQ
This domain assesses work performance (impact of stent symptoms on work productivity) and consists of multiple questions, each answered using a Likert-type scale. Higher scores indicate greater symptom severity.
Other outcomes
Incidence of steroid-related adverse events
Incidence of the steroid-induced hyperglycemia (SIHG) as defined as random blood glucose ≥200 mg/dL and hyperglycemia-related adverse events including diabetic ketoacidosis (DKA) and hyperosmolar syndrome (HHS)
Incidence of UTIs
Incidence of symptomatic urinary tract infections (UTIs)
Number of ER visit or hospital admission
Number of unplanned emergency room visit or hospital admission
Sponsors and contacts
Click on the lead sponsor to view all of their trials.