Double renal biopsy with Menghini needle.

Area of Science:

• Nephrology
• Urology
• Pathology

Background:

• Percutaneous renal biopsy is a crucial diagnostic tool.
• The Menghini needle is a common instrument for this procedure.
• Assessing complications and the utility of double biopsy is important for clinical practice.

Purpose of the Study:

• To review complications associated with percutaneous renal biopsy using the Menghini needle.
• To evaluate the safety and efficacy of a double biopsy technique.

Main Methods:

• Review of 400 percutaneous renal biopsies performed by the author using the Menghini needle.
• Kidney position confirmed via intravenous pyelography and radiography.
• Biopsy specimens collected in duplicates for multiple analytical techniques (light, electron, polarization microscopy, immunofluorescence).

Main Results:

• The Menghini needle biopsy procedure in 400 cases was reviewed.
• Double biopsy technique did not increase the incidence or severity of complications compared to conventional biopsy.
• Sufficient material for comprehensive histological and immunofluorescence studies was obtained with double biopsies.

Conclusions:

• Percutaneous renal biopsy with the Menghini needle is associated with a low incidence of complications.
• The double biopsy technique is safe and does not elevate complication rates, while providing ample material for extensive diagnostic studies.