Evaluation of Clinical Outcome after Laparoscopic Antireflux Surgery in Clinical Practice: Still a Controversial Issue

Table 4

Postoperative 24 hrs pH-metry. Indications and results.

Authors	Year	Ref.	Pts submitted to pH-metry (%)	Indications	Results
Franzén et al.	1999	[16]	67/101 (66.3%)	Follow-up	19.4% abnormal score
Spechler et al.	2001	[6]	10/37 (27%)	Follow-up	No statistical difference between medical and surgical group. Small sample. Results inconclusive.
Lord et al.	2002	[14]	86/86 (100%)	Symptomatic patients after LARS	23% abnormal score
Arca et al.	2002	[17]	28/46 (49%)	Follow-up	28% abnormal score
Booth et al.	2002	[18]	109/175 (78%)	Follow-up	5% abnormal score
Khajanchee et al.	2002	[19]	209/209 (100%)	Follow-up	16.7% abnormal score
Galvani et al.	2003	[15]	124/124 (100%)	Symptomatic patients after LARS	39% abnormal score;
Gee et al.	2008	[34]	20/191 (10.4%)	Follow-up (ARM)	70% abnormal result
Anvari and Allen	2003	[20]	181/332 (54.5%)	Follow-up	Mean acid reflux score significantly lower than preop
Papasavas et al.	2003	[8]	93/297 (31.3%)	Follow-up	Average percentage of exposed time <4 was significantly reduced
Ciovica et al.	2006	[27]	351/351 (100%)	Follow-up	10% Abnormal score
Draaisma et al.	2006	[11]	?/79	Follow-up	12.5% Abnormal score
Morgenthal et al.	2007	[32]	/166	Follow-up	14% abnormal score in pts on ARM (3/21)
Oelschlager et al.	2008	[35]	58/288 (20.1%)	Follow-up (heartburn)	22% abnormal result
Wijnhoven et al.	2008	[36]	139/844 (16.4%)	Patients taking ARM after LARS	22.3% abnormal results
Boddy et al.	2008	[37]	106/145 (73.1%)	Follow-up (4 months)	No correlation between pH scores and symptoms score
Fein et al.	2008	[33]	67/99 (67.6%)	Follow-up	33% of pts with heartburn had recurrent reflux
Thompson et al.	2009	[40]	69/69 (100%)	Symptomatic patients after LARS	22% Abnormal score