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Effectiveness of US-Guided PCNL Different Positions in Renal Stones Treatment

A Retrospective Single Centered Cohort Study Comparing The Effectiveness of Ultrasound-Guided PCNL Different Positions in Renal Stones Treatment

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05855057
Enrollment
123
Registered
2023-05-11
Start date
2018-01-20
Completion date
2022-01-20
Last updated
2023-05-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Percutaneous Nephrolithotomy, Renal Stones, Ultrasound Therapy; Complications

Brief summary

The aim of this study is to compare the effectiveness of Ultrasound-Guided Percutaneous nephrolithotomyin different positions supine, prone positions and flank suspend supine position in renal stones treatment.

Detailed description

Percutaneous nephrolithotomy (PCNL) has become the choice of modality for the treatment of large and complicated renal calculi. Initially, percutaneous access to the kidney was only performed in the prone position, as described sixty years ago.

Interventions

PROCEDUREFlank suspended supine position percutaneous nephrolithotomy

The patients will be placed in the supine position with the shoulder and the buttock will be raised by a 3-l bag of water suspending the flank of the affected side. The body contour will be aligned to the edge of the table. The operating table will be adjusted to the jack knife position, with the tip of the lower part of the table will be slightly lowered. The leg of the affected side of the patent will be straightened dorsally flexed and slightly inner rotated, with the knee of the other side will be flexed. The patients will be then immobilized at the chest and the pelvis with two adherent tapes which crossed each other at the abdomen to form a 'V' shape.

PROCEDURESupine percutaneous nephrolithotomy group

The patient will remain in the supine position, with the side of interest at the edge of the table, with a small cushion placed under the flank to elevate it 15-20°.

PROCEDUREProne percutaneous nephrolithotomy group

Prone percutaneous nephrolithotomy. The prone position (PRON) technique followed these classic steps: patients will be placed in a lithotomy position and a ureteral catheter will be inserted through a rigid cystoscope to perform a retrograde pyelogram. The ureteral catheter will be fixed to a Foley catheter, and then the patient will be repositioned to the prone position with pads under their shoulders.

Sponsors

Benha University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* patients who underwent Percutaneous nephrolithotomy * Patient's age from \>18 - 70 years old. * Body mass index (30-40 kg/m2). * Both sex * Renal stones diameter ≥2 cm * Cardiac patients

Exclusion criteria

* Patient refusal. * Pregnant women. * Patients with renal anomalies. * Transplanted kidney. * Uncorrected coagulopathy, or active infection.

Design outcomes

Primary

MeasureTime frameDescription
Stone clearance rate3 months postoperativelyComparison of stone clearance rates among different positions (flank suspended supine, supine, and prone) in Ultrasound-Guided Percutaneous Nephrolithotomy (PCNL) for the treatment of renal stones.

Secondary

MeasureTime frameDescription
Operative timeIntraoperativelyduration of the Ultrasound-Guided Percutaneous Nephrolithotomy (PCNL) procedure among different positions
Complication rates48 hours PostoperativelyComparison of postoperative complications (e.g., bleeding, infection, injury) among the different positions.
Stone-free rates48 hours PostoperativelyComparison of the percentage of patients achieving complete stone clearance among the different positions.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026