Table 3

Secondary outcomes at 1, 2 and 5 years of follow-up, according to treatment

OutcomeBaseline1 year2 years5 years
LHMPDp ValueLHMPDp ValueLHMPDp ValueLHMPDp Value
nnnnnnnn
Eckardt score
 Mean (SD)1058.4 (2.11)967.0 (1.75)0.23911.2 (1.1)791.4 (1.3)0.68841.2 (1.0)711.4 (1.2)0.29711.1 (1.0)571.4 (1.0)0.09
LOS pressure
 Mean (SD)10030.5 (13.0)9433.4 (16.6)0.398710.2 (7.0)7114.1 (9.1)0.0097410.0 (7.2)6311.7 (7.9)0.28347.4 (5.5)2810.8 (8.7)0.19
Height of barium-contrast column after 5 min
 Median (IQ range)9311.6 (8.1–17.5)8712.0 (8.0–17.5)0.80760.0 (0.0–5.9)700.4 (0.0–6.1)0.82732.0 (0.0–7.2)644.5 (0.0–8.0)0.19350.5 (0.0–3.2)261.6 (0.0–5.0)0.70
SF-36
 Physical component—median (IQR)10250 (42–55)9251 (43–55)0.808757 (53–59)7655 (50–59)0.147955 (53–59)6654 (50–59)0.944155 (52–58)3553 (46–56)0.07
 Mental component—median (IQ range)10244 (32–54)9244 (33–54)0.498754 (46–58)7654 (45–58)0.927955 (50–58)6654 (45–58)0.104155 (48–58)3556 (49–59)0.67
  • Data for the two treatment groups were compared at the different time points with the use of Wilcoxon rank-sum test.

  • No significant differences were observed between the two treatment groups except for pressure at the LOS after 1 year, which was higher in the PD group than in LHM group (p=0.008, Wilcoxon rank-sum test).

  • LHM, laparoscopic Heller myotomy; LOS, lower oesophageal sphincter; PD, pneumodilation.