Clinical trial NCT03750032: Technical Modifications of Appendicular Stump Closure During Laparoscopic Appendectomy
Official title: Technical Modifications of Appendicular Stump Closure During Laparoscopic Appendectomy
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Acute Appendicitis
Keywords: acute appendicitis
laparoscopy
closure of appendicular stump
economical and medical outcomes
Lead sponsor: University Hospital Ostrava
Sponsor class: OTHER
First posted: 2018-11-21
Enrollment: 120
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: The patients will be randomized into three groups of various appendicular stump closure.
Primary purpose: TREATMENT

Brief summary: Laparoscopic appendectomy (L-APPE) presents a golden standard in the treatment of acute appendicitis nowadays. However, there are ongoing controversies regarding the ideal technique of appendicular stump closure during L-APPE in the published literature. Several technical modifications of appendicular stump closure are available at the present - closure using endoloop, endostapler or Hem-o-lock clips. The aim of the proposed project (CAS study) is to compare medical and economic outcomes of patients undergoing L-APPE with different methods of appendicular stump closure (endostapler, endoloop and Hem-o-lock clips).

Detailed description: Acute appendicitis presents one of the most common surgical illnesses which affect approximately 7% of the western population. In the Czech Republic, 11664 patients were hospitalized and operated for the diagnosis of acute appendicitis (K35-K38) during 2016. It might seem that the procedure of appendectomy will be guided by a clear algorithm for its frequency, but it is not so. Because of acute appendicitis, appendectomy may be performed via laparotomy or laparoscopy (minimally invasive surgery). During laparoscopic appendectomy (L-APPE), there are no clear recommendations regarding trocar placement, methods of dividing appendicular mesenteriolum, methods of appendicular stump closure or appendicular stump sinking.

The proposed clinical study is focused on the issue of the appendicular base interruption during L-APPE. At the present, there are several technical modifications of appendicular stump closure - by means of endoloop (the suture loop from absorbable fiber), endostapler or using Hem-o-lock clips. The performed literature search revealed that evidence-based medicine data regarding the optimal way of appendicular stump closure are insufficient. That is why the investigators have decided to conduct a prospective randomized single-center clinical study aimed to compare different technical modifications of appendicular stump closure during L-APPE. Within a study period, all patients undergoing L-APPE at the University Hospital Ostrava will be randomized to one of the technical modifications of appendicular stump closure.

The aim of the project (CAS study) is to compare medical and economic outcomes of patients undergoing L-APPE with different methods of appendicular stump closure (endostapler, endoloop and Hem-o-lock clips). The operative time, intraoperative and postoperative complications will be the primary outcome measures of the study, economic outcomes will be the secondary outcome measures.

Eligibility criteria: Inclusion Criteria:

* age ≥18 years
* acute appendicitis
* laparoscopic approach
* signed informed content

Exclusion Criteria:

- necrosis or advanced inflammatory changes in the area of appendicular stump

Primary outcomes:
measure: Operative time
timeFrame: 12 months
measure: Incidence of intraoperative and postoperative complications
timeFrame: 12 months
Secondary outcomes:
measure: Costs of surgery
timeFrame: 12 months
measure: Costs of hospitalization
timeFrame: 12 months
measure: Costs of treatment of complications
timeFrame: 12 months
Other outcomes:
Locations:
city: Ostrava
country: Czechia
facility: University Hospital Ostrava
state: Moravian-Silesian Region
Study officials:
affiliation: University Hospital Ostrava
name: Peter Ihnát, Ass.Prof.,MD,PhD,MBA
role: PRINCIPAL_INVESTIGATOR
References:
citation: Mayir B, Bilecik T, Ensari CO, Oruc MT. Laparoscopic appendectomy with hand-made loop. Wideochir Inne Tech Maloinwazyjne. 2014 Jun;9(2):152-6. doi: 10.5114/wiitm.2014.41624. Epub 2014 Mar 24.
citation: Matyja M, Strzalka M, Rembiasz K. Laparosocopic Appendectomy, Cost-Effectiveness of Three Different Techniques Used to Close the Appendix Stump. Pol Przegl Chir. 2015 Dec;87(12):634-7. doi: 10.1515/pjs-2016-0015.
citation: Mayir B, Ensari CO, Bilecik T, Aslaner A, Oruc MT. Methods for closure of appendix stump during laparoscopic appendectomy procedure. Ulus Cerrahi Derg. 2015 Aug 18;31(4):229-31. doi: 10.5152/UCD.2015.2768. eCollection 2015.
citation: Yildiz I, Koca S. Is There An Ideal Stump Closure Technique In Laparoscopic Appendectomy? Surg Technol Int. 2016 Apr;28:117-20.
citation: Delibegovic S, Mehmedovic Z. Erratum to: The Influence of the Appendiceal Base Diameter on Appendix Stump Closure in Laparoscopic Appendectomy. World J Surg. 2016 Nov;40(11):2832. doi: 10.1007/s00268-016-3709-5. No abstract available.
citation: Ihnat P, Tesar M, Tulinsky L, Ihnat Rudinska L, Okantey O, Durdik S. A randomized clinical trial of technical modifications of appendix stump closure during laparoscopic appendectomy for uncomplicated acute appendicitis. BMC Surg. 2021 May 31;21(1):272. doi: 10.1186/s12893-021-01279-z.