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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04346134
Other study ID # Uro_Azhar_16_019
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date July 14, 2020
Est. completion date March 1, 2021

Study information

Verified date February 2022
Source Al-Azhar University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Several studies were conducted to compare extracorporeal shockwave lithotripsy (SWL) and percutaneous nephrolithotomy (PNL) as treatment options for medium size lower caliceal high dense stones. However, no studies compared these options for non- lower polar stones. In the present study the investigators will compare mini-PNL and SWL in treatment of non- lower polar, medium size, high dense renal stones in reference to the stone free rate and safety of the procedures. Pre-operative evaluation including abdominal non-contrasted computed tomography will be performed for all patients. Patients will be randomly allocated into two equal groups and will be treated by either mini-PNL or SWL. postoperative, patients will be followed by regularly for 3 months. the outcome of the procedures will be evaluated and compared between groups.


Description:

The European guidelines put SWL and PNL as an equal treatment options for non- lower polar renal stones from 10 to 20 mm size regardless of density. However, several studies reported markedly reduced SFR after SWL with increased density. Also, in practice, the investigators noticed a high failure rate in renal stones with high density regardless of stone size. Several studies were conducted to compare SWL and PNL as treatment options for medium size lower caliceal stones. However, no studies compared these options for non- lower polar stones. In the present study the investigators will compare mini-PNL and SWL in treatment of non- lower polar, medium size, high dense renal stones in reference to the SFR and safety of the procedures. Adult patients with renal stones who agree to participate in the study will evaluated evaluated by full medical history taking and thorough physical examination, urinalysis, urine culture and antibiogram, complete blood cell count (CBC), serum creatinine, liver function tests and coagulation profile. Plain abdominal X-ray for kidney, ureters and urinary bladders (KUB), abdominal ultrasonography and abdominal non-contrasted computed tomography (NCCT). Preoperative assessment of renal anatomy and stone characteristics will be based on the findings of abdominal NCCT. patients with high density (>1000 HU), non-lower polar, single renal stone of 10 to 20 mm size will be randomly divided into 2 equal groups. mini-PNL group, in which PNL procedures will be performed using miniature nephroscope and SWL group, in which SWL procedures will be performed using Dornier Lithotripter. SWL will be performed for a maximum of 3 sessions. Patients will be followed up regularly, post-operatively for 3 months. NCCT will be performed after 3 months for detection of stone free status. Baseline data, intra-operative and post-operative parameters will be compared between groups.


Recruitment information / eligibility

Status Completed
Enrollment 72
Est. completion date March 1, 2021
Est. primary completion date December 1, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Adult patients with high density (>1000 HU), non-lower polar, single renal stone of 10 to 20 mm size Exclusion Criteria: - Pregnant women, morbid obesity, severe orthopaedic deformities, any co-morbidities precluding general anaesthesia or prone positioning, uncorrectable coagulation disorders, active urinary tract infection (UTI), stone in calyceal diverticulum, abnormal renal anatomy and urinary tract obstruction distal to the stone

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
mini-PNL
Percutaneous nephrolithotomy using miniature nephroscope. The procedure will be performed under general or spinal anesthesia under fluoroscopy guidance.
SWL
Extracorporal shockwave lithotripsy using Dornier SII lithotripter. the procedure will be performed under sedoanalgesia, and fluoroscopy will be used for stone localization; for a maximum of 3 SWL session.

Locations

Country Name City State
Egypt Urology Department, Al-Azhar University Hospital Cairo

Sponsors (1)

Lead Sponsor Collaborator
Al-Azhar University

Country where clinical trial is conducted

Egypt, 

Outcome

Type Measure Description Time frame Safety issue
Primary Stone Free Rate No residual renal stone or residual fragment(s) less than 4 mm size as detected by non-contrasted computed tomography 3 months after the intervention procedures.
Secondary Complications Intra- and 3 months post-operative complications
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