3. Results
During the study period, 484 patients were assessed for eligibility for
the study. After excluding 133 patients from the study, a total of 351
patients were included in the study with a median follow-up of 23 months
(IQR: 20-26 months). Of the patients, 134 underwent EPC surgery, and 217
underwent SPC surgery, and the same number of the patients were analyzed
because of no lost to follow-up (Figure 2). The distributions of age
were found statistically similar among the groups. The patients in the
SPC group more frequently were male, had recurrent sinus, and had
statistically significantly more sinus orifice than the patients in the
EPC group (p<0.001, p<0.001 and p<0.001,
respectively) (Table 1).
The length of stay and the wound healing time were statistically
significantly longer in the patients underwent EPC surgery
(p<0.001 and p<0.001, respectively); however, the
duration of surgery was statistically significantly longer for SPC
procedure (p=0.010) (Table 2).
The occurrence of the wound site infection and the abscess were
statistically significantly higher in EPC surgery (p=0.001 and
p<0.001, respectively); however, the seroma was statistically
significantly more common in SPC group (p=0.004) (Table 3).
Recurrence occurred in 25 patients (18.7%) through the median follow-up
period of 23 months in the patients underwent EPC surgery, in 12
patients (5.5%) through the median follow-up period of 22 months in the
patients underwent SPC surgery. The crude OR of recurrence for SPC
procedure was 0.255 (95% CI=0.123-0.528) (p<0.001). The
adjusted ORs of recurrence for SPC procedure were 0.241 (95%
CI=0.115-0.506) for model 1, 0.044 (95% CI=0.015-0.132) for model 2,
0.083 (95% CI=0.020-0.348) for model 3, and 0.074 (95% CI=0.017-0.313)
for model 4 (p<0.001, p<0.001, p=0.001 and
p<0.001, respectively) (Table 4).