Effect and safety of mark-guided vs standard peroral endoscopic myotomy: A retrospective case control study

Table 4 Primary and secondary outcomes in patients at 24 mo follow-up

	Mark-guided POEM (n = 48)	Standard POEM (n = 51)	P value
Overall clinical success (n)	44 (92.7%)	47 (92.2%)	0.93
Eckart score	1 (1-2)	1 (1-2)	0.92
GERDQ score	7 (6-9)	7 (6-9)	0.74
SF-36 score	77 (71-80)	76 (72-80)	0.73
Reflux symptom (n)
Yes	13 (27.1%)	24(47.1%)	0.04
No	35(72.9%)	27 (52.9%)
PPI use (n)
Yes	14 (29.2%)	26 (51%)	0.02
No	34 (70.8%)	25 (49%)

POEM: Peroral endoscopic myotomy; GERDQ: Gastroesophageal reflux disease questionnaire; SF-36: 36-Item Short-Form Health Survey; PPI: Proton pump inhibitor.