Abscess Drainage
Image-guided drainage of renal and perinephric abscesses to eliminate the septic focus — percutaneous technique, immediate effect, guided by culture results for targeted antibiotic therapy.
What is Abscess Drainage?
Abscess Drainage is performed when complicated urinary infections form pus collections within or around the kidney or in the perinephric space. Drainage is achieved percutaneously under ultrasound or CT guidance using a fine needle and drain catheter, or through open surgical incision in complex multi-loculated cases. Adequate drainage combined with targeted antibiotic therapy is the cornerstone of treatment — eliminating the septic focus and preventing life-threatening progression to systemic sepsis. Pus aspirated at drainage is sent for culture and sensitivity, guiding antibiotic selection more accurately than blood or urine cultures.
How the Procedure Works
Cross-Sectional Imaging
Ultrasound or CT confirms abscess location, size, complexity, and safest drainage route avoiding bowel, major vessels, and the pleural reflection.
Patient Preparation
Broad-spectrum IV antibiotics commenced before procedure; local anaesthesia infiltrated to abscess wall; IV sedation or general anaesthesia administered.
Needle Access & Culture
18-gauge needle advanced into abscess cavity under real-time guidance; pus aspirated for culture and sensitivity before drain catheter placement.
Drain Insertion
Guidewire coiled within abscess; tract dilated; pigtail drainage catheter placed and secured to skin; connected to drainage bag.
Post-Drainage Care
Drain output monitored daily; saline irrigation used for loculated collections; drain removed when output falls below 10–20 mL per 24 hours.
Outcomes
Who Needs This Treatment?
- →Patients with renal abscess from ascending UTI not responding to antibiotics alone within 48–72 hours.
- →Those with perinephric abscess — collection in fat surrounding kidney — which does not resolve with IV antibiotics.
- →Diabetic patients at greatly increased risk of emphysematous pyelonephritis and perinephric abscess formation.
- →Patients with obstructing stones causing upstream infection with abscess formation requiring simultaneous management.
- →Anyone with systemic sepsis whose source is an identifiable renal or perinephric pus collection needing drainage.
- →Those with scrotal abscess from epididymo-orchitis where fluid collection requires drainage for complete resolution.
"In complicated UTI with abscess formation, early and complete drainage is the cornerstone of treatment. Combining image-guided drainage with targeted antibiotics — guided by culture from the drained pus — gives the best chance of full recovery."
— — Dr. Vipin Reddy, Consultant Urologist, Andrologist & Renal Transplant Surgeon
Common Questions
Frequently Asked
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