Cholecystostomy: Percutaneous Gallbladder Drainage – Indications & Outcomes

What is a percutaneous cholecystostomy?

Percutaneous cholecystostomy (PC) is a minimally invasive procedure in which a drainage catheter is inserted into the gallbladder under imaging guidance (ultrasound or CT). It allows decompression and drainage of infected bile in patients with acute cholecystitis who are too ill to undergo emergency cholecystectomy.

The procedure can be performed at the bedside in intensive care units using ultrasound guidance, avoiding transport to the interventional radiology suite. It serves as a bridge to delayed cholecystectomy or, in some cases, as definitive treatment for patients who will never be surgical candidates.

Indications – who needs a cholecystostomy?

According to the Tokyo Guidelines 2018 (TG18) and multiple society recommendations, PC is indicated for:

• Acute cholecystitis in patients with high surgical risk (ASA class IV or V) – severe cardiopulmonary disease, end‑stage renal failure, advanced cirrhosis (Child‑Pugh C), or multiple organ failure.
• Septic shock from acute cholecystitis – as an emergency temporising measure.
• Failure of conservative management (antibiotics alone) in patients unfit for surgery.
• Patients on anticoagulation who cannot be safely reversed for surgery – PC can be performed with lower bleeding risk (using transhepatic tract).
• Acute cholecystitis in pregnancy – as a safer alternative to surgery in the first or third trimester (though surgery is also safe in second trimester).
• Patients with severe acute pancreatitis and suspected gallbladder source – to decompress and prevent further inflammation.

Contraindications: Uncorrectable coagulopathy (INR >2.0, platelets <50,000), lack of safe access route, or gallbladder perforation with free intraperitoneal bile (surgery required).

Technique: ultrasound/CT guidance, transhepatic vs. transperitoneal

PC is typically performed by an interventional radiologist. Two approaches exist:

• Transhepatic (trans‑parenchymal) approach: Needle passes through liver parenchyma into the gallbladder fossa. Preferred in coagulopathic patients because the liver tract tamponades bleeding. Also reduces risk of bile leak into peritoneum.
• Transperitoneal (direct) approach: Needle passes directly from abdominal wall into gallbladder. Faster and avoids liver injury, but higher risk of bile peritonitis and bleeding.

Steps:

1. Ultrasound localisation of gallbladder (distended, thickened wall, pericholecystic fluid).
2. Sterile preparation and local anaesthesia.
3. Needle insertion under real‑time ultrasound guidance (21‑22 gauge).
4. Aspiration of bile to confirm position (send for culture).
5. Guidewire insertion, tract dilation, and placement of 8‑12 Fr pigtail drainage catheter.
6. Secure catheter and connect to drainage bag.

CT guidance is used if ultrasound windows are poor (e.g., obese, overlying bowel gas).

Clinical outcomes – success rates and mortality

PC effectively controls sepsis and resolves acute cholecystitis in most patients:

• Clinical success (resolution of fever, pain, leukocytosis): 80‑95% within 48‑72 hours.
• 30‑day mortality: 5‑15% – reflects the underlying severe comorbidities rather than the procedure itself.
• Recurrence of cholecystitis after tube removal: 20‑30% if gallbladder remains in situ (higher if stones present).
• Conversion to delayed cholecystectomy: 40‑60% of patients ultimately undergo interval cholecystectomy (after 4‑8 weeks).

In patients who are never surgical candidates, the tube may be left indefinitely (chronic cholecystostomy) or removed after biliary‑enteric fistula forms (rare).

Complications – bleeding, bile leak, tube issues

Complication rates are low (5‑15%) but can be serious:

• Bleeding: 1‑3%. Transhepatic approach reduces risk. May require transfusion or embolisation.
• Bile leak / peritonitis: 2‑5%. More common with transperitoneal approach. Usually managed with continued drainage; surgery rarely needed.
• Tube dislodgement or obstruction: 5‑10%. Requires repositioning or replacement.
• Infection (catheter tract infection, empyema): 2‑4%.
• Pneumothorax / hemothorax: Rare (transhepatic approach in high right lobe).
• Vasovagal reaction: Common during insertion but self‑limited.

Major complication rate (requiring intervention) is <5%. Procedure‑related mortality is <1%.

Post‑procedure management and tube removal

After PC placement:

• Antibiotics: Continue targeted therapy based on bile culture (common organisms: E. coli, Klebsiella, Enterococcus, anaerobes).
• Tube care: Daily assessment of output (bile should be green/yellow). Flush with 5‑10 mL saline daily to maintain patency.
• Cholangiogram via tube: Performed after clinical resolution (typically 4‑6 weeks) to assess cystic duct patency and rule out stones in common bile duct.
• Tube removal: If patient is asymptomatic, cystic duct is patent, and no stones remain, tube can be removed. If the patient will not undergo cholecystectomy, a tube clamp trial is performed (clamp for 24‑48 hours, observe for pain/fever). If tolerated, tube is removed.
• If recurrence occurs: Re‑insertion or proceed to cholecystectomy if patient now fit.

Cholecystostomy vs. cholecystectomy – bridge or definitive?

PC is not a replacement for cholecystectomy in patients who can safely undergo surgery. The decision matrix:

• Emergency (within 24 hours): Cholecystectomy for low‑risk (ASA I‑III). PC for high‑risk (ASA IV‑V) or septic shock.
• Interval (after 4‑8 weeks): If patient improves, offer delayed cholecystectomy. Only 40‑60% of PC patients become surgical candidates.
• Definitive PC: For patients with permanent contraindications to surgery (end‑stage dementia, severe heart failure, unresectable malignancy). They may keep tube long‑term (changed every 2‑3 months) or undergo elective tube removal if cystic duct is patent and no stones.
• Alternative to PC: Endoscopic ultrasound‑guided gallbladder drainage (EUS‑GBD) with lumen‑apposing metal stent (LAMS) is emerging as a less invasive option, especially for non‑surgical patients. It avoids an external tube.

Interactive FAQ – Cholecystostomy (gallbladder drainage)

Disclaimer: This information is for educational purposes. Percutaneous cholecystostomy is a specialised procedure requiring multidisciplinary decision‑making. Consult an interventional radiologist and hepatobiliary surgeon at Vivekananda Hospital for individualised care.