Laparoscopic ultrasonography as an alternative to intraoperative cholangiography during laparoscopic cholecystectomy

Table 1 Results of PubMed review

Author	Year	Type of study	Number of patients	Surgeon	Routine LUS use	Detailed anatomical description	CBDS report	Specific aims of the study other than LUS efficacy
Tranter	2001	PNR	367	Several	+	Poor	+
Biffl	2001	PNR	248	Several	+	No	+	CBDI
Halpin	2002	PNR	380	Single	+	Yes	+	Comparison with IOC
Catheline	2002	PNR	900	ni	+	No	+	Comparison with IOC
Tranter	2003	PNR	135	Several	+	No	+	Comparison with IOC, measurement of duct diameter
Onders	2005	PNR	105	Single	-	No	+
Perry	2007	PNR	236	Single	+	Poor	+	Comparison with IOC
Machi	2007	PNR	200	Several	+	Poor	+	Cost
Hakamada	2008	RSS	299	Several	1	Yes	+	Educational program
Machi	2009	RMS	1352	Several	+	No	+
Hublet	2009	PNR	269	Single	+	Poor	+
Li	2009	PRN	103	Several	+	Yes	+
Hashimoto	2010	RMS	220	Several	+	Yes2	-	CBDI
Pfluke	2011	RSS	50	Several	+	Yes	+
Nasu	2012	PNR	71	ni	+	Poor	+
Kothari	2013	PNR	253	Several	+	Poor	-	Comparison with trans-abdominal US in obese patients
Gwinn	2013	PNR	44	Several	+	Poor	-	Impact of inflammatory disease
Shaaban	2014	RSS	70	Single	-	No	+
Meta-analysis
Aziz	2014	MA
Jamal	2015	MA

¹Since instigation as part of an educational program ;

²Focus on cystic duct-CBD junction. RSS: Retrospective single center study; RMS: Retrospective multicenter study; PNR: Prospective non-randomized study; MA: Meta-analysis; ni: No information; CBDS: Common bile duct stones; LUS: Laparoscopic ultrasound; IOC: Intraoperative cholangiography.