The clinical relevance of an inflamed appendix in Crohn's disease

BACKGROUND AND AIMS

An appendectomy for appendiceal inflammation has been suggested to ameliorate the clinical course of patients with ulcerative colitis (UC). In contrast, for Crohn's disease (CD) an inverse association has been suggested with a higher incidence of CD and worse prognosis after appendectomy. The aim of this study was to analyse the clinical relevance of an inflamed appendix in CD patients undergoing ileocoecal resection (ICR).

METHODS

All consecutive patients undergoing primary ICR between 2007 and 2018 were considered for inclusion. Microscopic data of available appendiceal resection specimens (n=99) were revised by a dedicated IBD-pathologist and scored as inflamed or not inflamed. Eighteen patients had a previous appendectomy. Pathological findings were correlated with disease characteristics and recurrence rates (clinical, endoscopic and intervention-related).

RESULTS

In total, 117 patients were included: 77 (65.8%) females with a median age of 30 years [IQR 24 - 43] with a median follow up of 102 months [IQR 76-114]. Of patients without previous appendectomy (n=99), 39% had an inflamed appendix. No significant differences in disease characteristics (e.g. disease location, behaviour, time to surgery) or prognosis could be demonstrated between the two groups. In contrast, previous appendectomy (n=18) was associated with penetrating disease and numerically shorter disease duration at the time of resection. Furthermore, a trend was seen towards a stronger association with postoperative recurrence.

CONCLUSION

The current study could not confirm a different prognosis for CD patients with and without an inflamed appendix. In contrast, in patients with a previous appendectomy a trend was seen towards increased postoperative recurrence, which might be related to the higher incidence of penetrating disease.

Recurrent Appendicitis in Children: The Impact of a Poorly Known Disease

Chronic and recurrent appendicitis is rare in pediatric patients and can be easily misdiagnosed due to its unusual presentation and low incidence rate. We present the case of an 11-year-old male with recurrent right lower quadrant (RLQ) pain persisting for 19 months. The patient experienced pain flare-ups accompanied by paleness and gait limp, without fever or other symptoms. Despite extensive medical examinations, including imaging and endoscopy, a definitive diagnosis remained elusive. As serial abdominal ultrasounds reported an appendix at the upper limit of the normal caliber and symptoms persisted despite medical therapy, a diagnostic laparoscopy was performed, revealing a congested ileocecal appendix with erosions and granulocytic inflammatory infiltrate, consistent with appendicitis. Post-appendectomy, the patient's symptoms resolved, significantly improving his quality of life (QoL), as evidenced by the DISABKIDS Chronic Generic Module (DCGM). This case underscores the challenges in diagnosing chronic and recurrent appendicitis, emphasizing the need for improved awareness, case definitions, and research to better understand and manage these conditions. Moreover, the report highlights the substantial impact of such conditions on patients' physical, social, and psychological well-being using the only health-related QoL instrument developed across cultures for children with chronic diseases: the DCGM.