Page 10 - WJOLS

Youssef A Andraos et al

Table 1: Follow-up on % EWL over 1, 3, 6, 12, 18 and 24 months
Average % EWL ±
Time (months) Number of patients (N) Minimum %EWL Maximum %EWL standard deviation p-value
1 395 12.05 77.78 30.19 ± 10.6 < 0.001 *
3 357 19.48 121.43 47.07 ± 15.0 < 0.001 *
6 318 19.48 140.00 63.05 ± 20.0 0.003 *
12 243 20.45 142.86 68.15 ± 19.4 0.84
18 116 20.45 142.86 68.62 ± 22.1 0.90
24 21 39.06 104.65 69.29 ± 20.5
*Statistically significant

Table 2: Follow-up on % EWL over 1, 3, 6, 12, 18 and 24 months in patients with BMI between 30 and 45
Minimum Maximum Average % EWL ±
Time (months) Number of patients (N) % EWL % EWL standard deviation p-value
1 327 14.29 77.78 31.98 ± 10.6
3 295 22.22 121.43 49.57 ± 14.9 < 0.001 *
6 261 20.45 140.00 66.17 ± 20.2 < 0.001 *
12 194 20.45 142.86 70.82 ± 19.9 0.02 *
18 93 20.45 142.86 72.12 ± 22.9 0.63
24 17 39.06 104.65 73.90 ± 20.0 0.76
*Statistically significant

Table 3: Follow-up on % EWL over 1, 3, 6, 12, 18 and 24 months in patients with BMI > 45
Minimum Maximum Average % EWL ±
Time (months) Number of patients (N) % EWL % EWL standard deviation p-value
1 68 12.05 36.29 21.56 ± 5.1
3 62 19.48 57.14 35.15 ± 8.1 < 0.001 *
6 57 19.48 75.00 48.79 ± 10.8 < 0.001 *
12 49 35.82 90.91 57.47 ± 12.7 < 0.001 *
18 23 38.10 76.32 54.47 ± 10.3 0.33
24 4 44.05 54.05 49.69 ± 4.4 0.37
*Statistically significant
subgroups. The first subgroup includes 183 patients from degrees of EWL in this subgroup. However, a strong trend
May 15, 2011 till February 27, 2012, with a follow-up of to a significant increase to 80.77% is noted at 12 months
18 months. The first and second row of the plication were (p = 0.07); a statistical significance is mostly not reached
performed with continuous suturing using nonabsorbable because of the relative small number of patients followed
stitches. The second subgroup consists of 186 patients from up to this period (only 20 patients).
February 28, 2012 till February 4, 2013, with a follow-up
of 12 months. The first row was made with separated suturing Comparison between the Two Types of Sutures
stitches over a 36 French calibration tube with anterior By a comparison between the subgroups by the type of
and posterior marks. The second row was performed with sutures, a significant difference is noted in EWL between
continuous suturing. the two subgroups (continuous and separated suturing) at
the different periods, with higher degrees of EWL in the
Analysis by Type of Sutures
separated suturing subgroup. In fact, a lower percentage
In the continuous suturing subgroup (Table 4), similar of EWL is seen in the subgroup of continuous suturing,
results were noted as in the overall group. A significant and a higher percentage in the subgroup of separated sutu-
EWL is noted until 12 months after the surgery, with a peak ring (Graph 2). However, no comparison is done at 18 months
of EWL during the first 6 months after surgery (p < 0.001). because, up to this date, there are no patients in the sepa-
However, the nonsignificant changes (66.42%) noted at rated suturing subgroup who reached this period after
18 months (p = 0.92) are mostly due to a plateau phase surgery.
reached by 1 year postsurgery. By a comparison between the subgroups of type of
Moreover, in the separated suturing subgroup (Table 5), sutures, and only including the patients with a BMI > 45,
similar results to that in the overall group and the continu- a significant difference in EWL is noted between the two
ous suturing subgroup were noted, with obviously higher subgroups (continuous and separated suturing) at the

56