RESEARCH ARTICLE | https://doi.org/10.5005/jp-journals-10033-1406 |
Single-incision Laparoscopy-assisted Appendectomy in the Pediatric Age Group: Our Experience
1Department of Paediatric Surgery, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India; Department of Paediatric Surgery, Topiwala National Medical College and BYL Nair Hospital, Mumbai, Maharashtra, India
2–5Department of Paediatric Surgery, Topiwala National Medical College and BYL Nair Hospital, Mumbai, Maharashtra, India
Corresponding Author: Hemanshi Shah, Department of Paediatric Surgery, Topiwala National Medical College and BYL Nair Hospital, Mumbai, Maharashtra, India, e-mail: hemanshisshah@gmail.com
How to cite this article Tiwari C, Shah H, Sandlas G, et al. Single-incision Laparoscopy-assisted Appendectomy in the Pediatric Age Group: Our Experience. World J Lap Surg 2020;13(2):77–79.
Source of support: Nil
Conflict of interest: None
ABSTRACT
Background: Various methods of laparoscopic appendectomy have been described in children. We present the data of 50 children who underwent interval appendectomy at our institution by transumbilical single-incision laparoscopy-assisted appendectomy (SILAA).
Materials and methods: Fifty patients %3C;12 years from June 2011 to June 2017 with inclusion criteria <12 years of age who were admitted with clinical features of acute appendicitis of %3E;24–48 hours’ duration; had abdominal ultrasound (USG) with appendicular diameter of >10 mm and good clinical response to initial management by intravenous antibiotics within 24–48 hours of admission were retrospectively analyzed. They underwent SILAA after 6 weeks. Under general anesthesia, an infraumbilical incision was made and umbilical tube was identified. A 5 mm camera port was inserted by open Hassan’s technique. After visualizing the appendix, another incision was made adjacent to the port site on the left and a 5 mm instrument was introduced through this. The appendix was freed, mobilized, and delivered through the incision. Appendectomy was completed extracorporeally.
Results: The average age at presentation was 9.3 years. There were 18 females and 32 males. Two patients required conversion to open procedure in view of extensive adhesions and a short retrocecal appendix which was difficult to mobilize and exteriorize through umbilicus. The mean operating time was 30 minutes. There were no complications.
Conclusion: Single-incision laparoscopy-assisted appendectomy combines the advantages of both laparoscopic and open appendectomy and offers reduced operative time and less complications and reduced surgical costs in pediatric age group.
Keywords: Appendectomy, Laparoscopy, Pediatric, Single incision.
INTRODUCTION
Appendiceal pathology accounts for approximately 15–20% of all abdominal surgical emergencies in the pediatric age group.1–3 It has been regarded as the commonest indication for appendectomy in pediatric patients.1,4,5 Appendectomy is performed by various techniques, such as open, laparoscopic assisted, laparoscopic multiport, and single-incision laparoscopic approach.6 Laparoscopic appendectomy has been accepted as the gold standard for the management of appendicitis in children; its advantages over open appendectomy being less surgical trauma, less postoperative pain, fewer postoperative infections, shorter hospitalization, better cosmesis, and earlier recovery.7
The conventional laparoscopic appendectomy uses three ports for appendectomy. Appendectomy by a single incision is a further evolution toward minimally invasive surgery.6 We present the data of 50 children who underwent interval appendectomy at our institution by transumbilical single-incision laparoscopy-assisted appendectomy (SILAA).
MATERIALS AND METHODS
We present our experience with SILAA in 50 pediatric patients %3C;12 years from June 2011 to June 2017.
Inclusion criteria were children <12 years of age who were admitted with clinical features of acute appendicitis of %3E;24–48 hours’ duration; clinical evidence of acute appendicitis, abdominal ultrasound (USG) with appendicular diameter of >10 mm, and good clinical response to initial management by intravenous antibiotics within 24–48 hours of admission.
Patients who presented within 24–48 hours of onset of their symptoms, had uncomplicated appendicitis with appendicular diameter of 6–10 mm on USG, resolution of their symptoms with intravenous antibiotics within 24–48 hours of admission, and no recurrence of symptoms were excluded from this study. They were kept on vigilant follow-up. Patients presenting with appendicular perforation and abscess and having inadequate response to intravenous antibiotics within 24 hours of admission underwent emergency appendectomy and therefore excluded from this study.
All patients with acute abdominal pain with clinical diagnosis of acute appendicitis underwent abdominal USG to rule out complications, such as perforation or abscess. Appendicular diameter was assessed on USG. In equivocal cases, computerized tomography was performed. Intravenous antibiotics were administered. All patients were clinically monitored for 24 hours for resolution of clinical signs (vomiting, fever, tachycardia, right iliac fossa tenderness). Patients showing clinical response within 24 hours were offered SILAA after 6 weeks.
Under general anesthesia, in supine position with the patient catheterized and strapped to the operating table, an infraumbilical skin fold incision was made and deepened. Umbilical tube was identified and a 5 mm camera port was inserted by open Hassan’s technique. Capnoperitoneum was created and the pressure was maintained between 8 mm Hg and 10 mm Hg. Appendix was visualized. Another incision was made adjacent to the port site on the left and a 5 mm instrument was introduced through this. Appendicular adhesions were dissected and appendix was freed. If necessary, a third incision was made to introduce an additional instrument to aid dissection. The tip of the appendix was held by a grasper and delivered through the infraumbilical incision (Fig. 1). Appendectomy was completed extracorporeally. The incision was then closed in layers. Skin was closed with subcuticular sutures.
RESULTS
A total of 50 pediatric patients underwent appendectomy with interval SILAA procedure. The average age at presentation was 9.3 years. There were 18 females and 32 males. All patients had clinical symptoms of acute appendicitis and responded to intravenous antibiotics. They were discharged after the resolution of the acute phase and underwent interval appendectomy after 6 weeks.
Only two patients required conversion to open procedure in view of extensive adhesions and a short retrocecal appendix which was difficult to mobilize and exteriorize through umbilicus.
The mean operating time was 30 minutes. The average length of postoperative hospital stay was 24–36 hours. There were no postoperative complications (Fig. 2).
DISCUSSION
After its first description by Semm in 1983,8,9 the conventional three-port laparoscopic appendectomy has gained worldwide acceptance among the pediatric surgeons.8 This technique has been evolving since then and there have been several modifications in order to achieve better cosmetic results, reduction in costs, shorter recovery period, and less hospital stay.8,10 These newer techniques are appendectomy by laparoscopy-assisted approach, two-port laparoscopic approach, transumbilical single-port laparoscopic conventional appendectomy, and transumbilical single-incision laparoscopy-assisted approach.8,10
Single-incision and single-port laparoscopic appendectomy uses all three ports introduced through the infraumbilical incision and appendectomy is performed as in the conventional three-port manner by performing endocorporeal laparoscopic appendectomy. The single-port laparoscopic appendectomy is a recent advance which uses a singleport with three or four internal lumens. However, it requires special modified instruments—the single-incision port, curved instruments, and expertise; this ultimately increases the cost of surgery, especially in developing countries.6 The disadvantages of both these procedures as reported in the literature were longer operating time, clashing of instruments,11 and increased cost of surgery;12,13 the added disadvantage being cost of new instruments.
Single-incision laparoscopy-assisted appendectomy utilizes the umbilical incision to introduce a camera port and another conventional instrument to exteriorize the appendix through the umbilicus followed by extracorporeal appendectomy. It has advantages of better intra-abdominal visualization, less postoperative morbidity, and good cosmetic outcomes.8 It is a safe, minimally invasive approach for interval appendectomy. It is a suitable surgical procedure for training laparoscopic abilities and also has low instrumentation requirements.8 The procedure can be performed with the same conventional laparoscopic instruments avoiding the cost of new instruments.
This procedure was first described by Valla et al. in 1999 as umbilical one-puncture laparoscopy-assisted appendectomy and combines the advantages of laparoscopic surgery with those of open surgery.8,14 Petnehazy et al. have suggested SILAA to be a better approach for appendectomy in obese children as well.15
Moreover, in an interval appendectomy, the surgery is performed once peritoneal contamination has been resolved, potentially resulting in fewer postoperative complications of bowel obstruction, wound infection, fistula formation, intra-abdominal abscess, and bowel injury due to difficult dissection.16 It is more cost-effective as it requires less numbers of trocars and surgical instruments compared to conventional three-port laparoscopy.13,17,18 In children, the distance between appendix and umbilicus is shorter and the abdominal wall is more flexible making it easier to exteriorize the appendix through the umbilicus than in adults.19
The major disadvantage of SILAA is in terms of comfort and ergonomics.20 The ability to triangulate the instruments around the target is lost because all instruments and cameras are inserted through the same incision.20 However, with increasing exposure and experience with this technique, the operating time can be reduced significantly.20
CONCLUSION
Reduced-port and single-incision laparoscopic techniques have become popular in recent years for appendectomy. Single-incision laparoscopy-assisted appendectomy combines the advantages of both laparoscopic and open appendectomy and offers reduced operative time, early postoperative recovery, shorter duration of hospital stay, less complications, and reduced surgical costs in pediatric age group.
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