T. WATANABE ET AL.
Copyright © 2013 SciRes. SS
428
2008. The purpose of this research was to reveal out-
comes of SILA in accordance with the specific strategy
used at our hospital. Then, our result was acceptable
without major postoperative complications.
There are differences in strategies for acute appendici-
tis in each hospital. Surgical site infection (SSI) is the
most common complication after appendectomy. Mar-
genthaler et al. [5] reported the incidence of SSI after
appendectomy to be approximately 8%. It is essential to
reduce the incidence of SSI for improving the outcome
following appendicitis. In previous reports [6-8], a
wound infection rate of about 5% for single-incision ap-
pendectomies has been described, which was higher than
conventional laparoscopic appendectomy. In our study,
however, wound infection was not encountered. Appro-
priate surgical practices such as gentle manipulation and
adequate wound protection are essential to prevent SSI.
Our operation time for SILA was longer than that re-
ported in previous studies [9,10]. One reason for this
discrepancy may be our surgical technique. We per-
formed extracorporeal appendectomies through a single
umbilical incision after the cecum was mobilized to the
umbilicus, if necessary. The merit of this method is that
when appendiceal calculi are impacted at the appendiceal
base, we can easily manage this situation under direct
vision. However, Kang et al. [10] reported the impor-
tance of selecting intra- or extracorporeal appendectomy
whether the cecum is mobile or not in order to avoid un-
necessary manipulation and reduce operation time.
A total of 20 cases underwent conservative treatment
for acute appendicitis at our hospital from September
2010 to August 2012. Two cases (10%) were converted
to e-SILA because of severe inflammation, 8 cases (40%)
underwent i-SILA, and 10 cases (50%) did not undergo
any operation. At the discretion of the attending physi-
cian, antibiotics such as second generation cephalosporin,
tazobactam sodium/piperacillin sodium, and carbapenem
were administered for an average of 5.4 days as our con-
servative treatment. The hospital stay during conserva-
tive treatment averaged 7.3 days (range, 4 - 20), and the
outcomes were acceptable. As i-SILA was performed
after the inflammation subsided, under our treatment
regimen, patients in this group were able to be dis-
charged considerably earlier compared with those in the
e-SILA group.
5. Conclusion
In conclusion, the outcomes of SILA performed under
our strategy were acceptable and useful without major
postoperative complications.
REFERENCES
[1] K. Semm, “Endoscopic Appendectomy,” Endoscopy, Vol.
15, No. 2, 1983, pp. 59-64.
http://dx.doi.org/10.1055/s-2007-1021466
[2] S. Towfigh, F. Chen, R. Mason, N. Katkhouda, L. Chan
and T. Berne, “Laparoscopic Appendectomy Significantly
Reduces Length of Stay for Perforated Appendicitis,”
Surgical Endoscopy and Other Interventional Techniques,
Vol. 20, No. 3, 2006, pp. 495-499.
http://dx.doi.org/10.1007/s00464-005-0249-8
[3] M. N. Khan, T. Fayyad, T. D. Cecil and B. J. Moran,
“Laparoscopic versus Open Appendectomy: The Risk of
Postoperative Infectious Complications,” Journal of the
Society of Laparoendscopic Surgeons, Vol. 11, No. 3,
2007, pp. 363-367.
[4] R. Golub, F. Siddiqui and D. Pohl, “Laparoscopic versus
Open Appendectomy: A Metaanalysis,” Journal of the
American College of Surgeons, Vol. 186, No. 5, 1998, pp.
545-553.
http://dx.doi.org/10.1016/S1072-7515(98)00080-5
[5] J. A. Margenthaler, W. E. Longo, K. S. Virgo, et al.,
“Risk Factors for Adverse Outcomes after the Surgical
Treatment of Appendicitis in Adults,” Annals of Surgery,
Vol. 238, No. 1, 2003, pp. 59-66.
http://dx.doi.org/10.1097/01.SLA.0000074961.50020.f8
[6] A. A. Saber, M. H. Elgamal, T. H. El-Ghazaly, A. V.
Dewoolkar and A. Akl, “Simple Technique for Single In-
cision Transumbilical Laparoscopic Appendectomy,” In-
ternational Journal of Surgery, Vol. 8, No. 2, 2010, pp.
128-130. http://dx.doi.org/10.1016/j.ijsu.2009.12.001
[7] J. Lee, J. Baek and W. Kim, “Laparoscopic Transumbilical
Single-Port Appendectomy: Initial Experience and Com-
parison with Three-Port Appendectomy,” Surgical Lap-
aroscopy, Endoscopy & Percutaneous Techniques, Vol.
20, No. 2, 2010, pp. 100-103.
http://dx.doi.org/10.1097/SLE.0b013e3181d84922
[8] H. J. Kim, J. I. Lee, Y. S. Lee, et al., ”Single-Port Tran-
sumbilical Laparoscopic Appendectomy: 43 Consecutive
Cases,” Surgical Endoscopy, Vol. 24, No. 11, 2010, pp.
2765-2769. http://dx.doi.org/10.1007/s00464-010-1043-9
[9] J. A. Lee, K. Y. Sung, J. H. Lee and D. S. Lee, “Laparo-
scopic Appendectomy with a Single Incision in a Single
Institute,” Journal of the Korean Society of Coloproctol-
ogy, Vol. 26, No. 4, 2010, pp. 260-264.
http://dx.doi.org/10.3393/jksc.2010.26.4.260
[10] D. B. Kang, S. H. Lee, S. Y. Lee, et al., “Application of
Single Incision Laparoscopic Surgery for Appendectomy
in Children,” Journal of the Korean Surgical Society, Vol.
82, No. 2, 2012, pp. 110-115.
http://dx.doi.org/10.4174/jkss.2012.82.2.110