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Exit Strategy After Percutaneous Nephrolithotomy: Large or Small Bore Tube?

M

Mansoura University

Status

Unknown

Conditions

Urolithiasis
Percutaneous Nephrolithotomy (PNL)
Nephrolithotomy
Pain
Nephrostomy Tube (NT)

Treatments

Procedure: large-bore nephrostomy tube (LBNT)
Procedure: small-bore nephrostomy tube (SBNT)

Study type

Interventional

Funder types

Other

Identifiers

NCT04153474
SP-LP PCNL

Details and patient eligibility

About

Regarding to the distribution of nephrostomy tube (NT) size usage by country. There was a clear distinction between countries that used solely the small bore (SB) NT (Chile and Australia) and those that used solely the large bore (LB) NT (Czech Republic and Japan). There is also a trend toward SB NT in North America (~75% in USA and Canada) and toward LB NT in South America (~80% in Argentina and Mexico). In Europe the trend is equal (~50% in Germany, France, Greece and UK). Based on previous data and in view of conflicting data about postoperative complication including extravasation, bleeding and hemoglobin change and pain between previous studies, we will conduct this randomised trial comparing SB and LB NT following PNL.

Our aim to evaluate the safety of small versus large bore NT reporting complications using the Clavien-Dindo system with categorisation of PNL-specific complications

Enrollment

220 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Staghorn calculi
  2. Renal pelvis stones =>2 cm
  3. Lower pole stones= >1.5 cm
  4. upper ureteral calculi =>1.5 cm
  5. SWL-resistant stones

Exclusion criteria

  1. Age <18 years or Pregnancy
  2. Tubeless PNL
  3. Need for 3 percutaneous tracts intraoperative
  4. Morbid obesity (BMI >40)
  5. Refuse to complete study requirements
  6. Tumour in the presumptive access tract area or Potential malignant kidney tumour

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

220 participants in 2 patient groups

large-bore nephrostomy tube (LBNT)
Active Comparator group
Description:
large-bore 22 french nephrostomy tube (LBNT)
Treatment:
Procedure: large-bore nephrostomy tube (LBNT)
small-bore nephrostomy tube (SBNT)
Active Comparator group
Description:
small-bore 14 french nephrostomy tube (SBNT)
Treatment:
Procedure: small-bore nephrostomy tube (SBNT)

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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