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Table 1 Key questions and key words used to develop the Consensus Conference on Acute Appendicitis (AA)

From: WSES Jerusalem guidelines for diagnosis and treatment of acute appendicitis

Key questions Key words
1. Diagnostic efficiency of clinical scoring systems
Diagnostic efficiency of clinical scoring systems and their role in the management of patients with suspected appendicitis - can they be used as basis for a structured management?
Derivation OR clinical OR predict OR decision
AND rule OR algorithm OR tool OR model OR score OR indicator OR validation OR criteria
AND appendicitis
2. Role of imaging
Routine vs selective imaging? CT or US or both? In what order?
Diagnosis OR imaging
AND selective OR routine
AND ultrasound OR computed AND tomography OR US OR CT OR MRI
AND adult OR child OR pregnant
AND appendicitis
3. Non-operative treatment for uncomplicated appendicitis.
What is the natural history of appendicitis? Can appendicitis resolve without treatment? How common is it?
AND appendicitis
AND pathogenesis OR antibiotics
OR nonoperative OR conservative OR spontaneous AND resolution or self-limiting
AND treatment OR management
4. Timing of appendectomy and in-hospital delay
Does in-hospital delay increasethe rate of complication or perforation? Is it safe to delay appendectomy? Timing of appendectomy
AND delay OR perforation OR complication OR indicator OR criteria
AND appendicitis
5. Surgical treatment
-open or laparoscopic?
-lavage or aspiration of pus?
-ligation or invagination of the stump?
-primary or secondary closure of the wound?
Surgery OR operative OR laparoscopy OR open OR treatment OR management
AND elder OR comorbidities OR obese OR child OR pregnant
AND complicated OR perforated OR abscess
AND lavage OR aspiration OR suction OR drain OR mesoappendix OR sealing OR monopolar OR bipolar OR staple OR endoloop OR stump OR invagination OR ligation
AND appendicitis
6. Scoring systems for intra-operative grading of appendicitis and their clinical usefulness
What are the histopathological criteria for appendicitis of clinical importance? Minor inflammatory changes, early appendicitis, catarrhal appendicitis. The criteria used will have an influence on the proportion of negative appendectomy, and also on evaluation of diagnostic performance.
intra-operative AND grade OR score OR indicator OR criteria
AND histopathology OR macroscopic AND diagnosis
OR surgeon AND experience
AND appendicitis
7. Non-surgical treatment of complicated appendicitis: abscess or phlegmone
Role of percutaneous drainage and Interval Appendectomy or immediate surgery.
Abscess OR phlegmon
AND drain OR percutaneous OR interval AND appendectomy
AND conservative OR nonsurgical AND treatment OR management
AND complicated AND appendicitis
8. Preoperative and Postoperative Antibiotics
Should Preoperative antibiotics prophylaxis be given? What antibiotics? When should postoperative antibiotics be given? What antibiotics? Duration?
Antibiotic OR antimicrobial OR infection OR prophylaxis OR therapy OR treatment
AND appendectomy OR surgery
AND time OR day OR range OR duration
AND complicated OR uncomplicated
AND intravenous OR oral
AND appendicitis