Table 1.

Summary of reports describing endoscopic ultrasound-guided liver abscess drainage.

Study, location	Indications	Location of Abscess	Size (cm)	Approach	Puncture needle	Tract dilator	Endoprosthesis for drainage	Follow up
Seewald et al. [2005], Germany	Failed ABX therapy (1 week)	Lateral segment of left lobe	7 × 11	Proximal TG	22 G	6F Teflon outer sheath	7F Nasoabscess catheter with two side holes at distal end	4 weeks, 3 months and 6 months
Ang et al. [2009], Singapore	Failed ABX and PCD (ruptured)	Left subhepatic space collection	10.7 × 5.7	TG	19 G	10F Soehendra biliary dilator and balloon dilation	8F and 10F × 7cm double pigtail stents	11 days
Noh et al. [2010], Korea	Failed ABX and PCD	Gastrohepatic space	5.1 × 4	TG	19 G	6F and 7F biliary dilator catheter	7F double pigtail stent	Repeat CT on 10 days and 11 months, stent removal in 2 weeks
Noh et al. [2010], Korea	Failed ABX and PCD	Caudate lobe of liver	4.5 × 6	TG	19 G	6F and 7F biliary dilator catheter	7F double pigtail stent	Repeat CT in 2 weeks and 9 months, stent removal in 3 months
Noh et al. [2010], Korea	Failed ABX and inaccessible to PCD	Caudate lobe of liver with portacaval extension	5.5 × 4	TD	19 G	6F and 7F biliary dilator catheter	Two 7F double pigtail stents with nasocystic tube	Repeat CT in 4 weeks and 3 months, nasocystic tube and stent removal in 5 days
Itoi et al. [2011], Japan	Failed ABX and PCD (TB)	Between pancreas and caudate lobe of liver	7 (multiloculated)	TD	19 G	6 mm balloon dilatation	7F straight stent and 5F nasocystic catheter	Repeat CT in 5 days and 6 months, nasocystic tube removal in 2 weeks.
Itoi et al. [2011], Japan	Failed ABX and PCD (TB)	Caudate lobe	NA	TG	19 G	6 mm balloon dilatation	7F double pigtail stent and 5F nasocystic catheter	Repeat CT in 5 days and 6 months, nasocystic tube removal in 2 weeks.

ABX, antibiotic; PCD, percutaneous drainage; TB, tubercular; NA, not available; TG, transgastric; TD, transduodenal; G, gauge.