Percutaneous Procedures: Minimally Invasive, Image-Guided Interventions

Percutaneous ("through the skin") procedures access deep structures via needle/catheter puncture rather than open incision. They are a cornerstone of modern minimally invasive medicine.

Core Characteristics

• Minimally invasive: Small puncture (2-10 mm) vs. large incision.
• Image-guided: Ultrasound, fluoroscopy, CT, MRI for real-time targeting.
• Local anesthesia ± sedation: Avoids general anesthesia risks.
• Outpatient/short stay: Faster recovery, lower cost, less scarring.

Common Examples

Procedure	Purpose	Imaging
Percutaneous biopsy	Tissue diagnosis (liver, lung, kidney, bone)	US, CT
Percutaneous drainage	Abscess, fluid collection, biliary/urinary obstruction	US, CT
PEG (Percutaneous Endoscopic Gastrostomy)	Long-term enteral feeding	Endoscopy + fluoroscopy
PTCA/PCI	Coronary stenting for CAD	Fluoroscopy (angiography)
PCNL (Percutaneous Nephrolithotomy)	Large kidney stone removal	Fluoroscopy/US
Radiofrequency/Microwave Ablation	Tumor destruction (liver, lung, kidney, bone)	CT, US
Vertebroplasty/Kyphoplasty	Vertebral compression fracture stabilization	Fluoroscopy

Advantages Over Open Surgery

• Reduced pain, blood loss, infection risk, hospital stay.
• Faster return to function.
• Feasible in high-surgical-risk patients.

Percutaneous techniques continue to expand across specialties (IR, cardiology, neuro, ortho, urology, GI).