Point-of-care ultrasound diagnosis of stump appendicitis in the emergency department

Stump appendicitis - a systematic analysis

<b>Aim:</b> The study was conducted to analyze stump appendicitis which is a long-term complication of appendectomy - the otherwise commonest general surgical procedure conducted in the world. </br></br> <b>Methods:</b> 48 cases included from 36 articles published in the peer reviewed journals of repute were evaluated for eight variables including: (I) age of the patient, (II) gender, (III]) duration of symptoms, (IV) imaging, (V) interval time since initial operation, (VI) details of initial operation, (VII) management, (VIII) stump length if managed by operation. </br></br> <b> Results:</b> 48 cases (27 males and 19 females) ranging in age from 2 to 72 years reported after a wide range of time (3 days - 46 years) after primary appendectomy. The duration of symptoms ranged from 1 day to 7 months. As many as 31 (64.5%) cases had inflamed stump appendix whereas 17 (33.5%) had perforation. Twenty-one (43.7%) had undergone laparoscopic primary appendectomy and 27 (56.3%) had undergone open appendectomy. Management of the retained stump included stump appendectomy in 42 (87.5%), right hemicolectomy in 2 (4.2%) and conservative in 4 (8.3%) cases. In the 44 cases managed by surgical intervention, the approach was open in 27 (61.4%) and laparoscopic in 17 (38.6%) cases. The length of the retained appendix stump ranged from 0.5 cm to 6.5 cm (mean 2.14 cm). </br></br> <b>Conclusion:</b> Stump appendicitis is an entity that a physician needs to suspect if a patient reports with features of appendicitis even after appendectomy had been conducted. Management is generally surgical and aimed at removal of the retained appendiceal stump.

Stump Appendicitis: Clinical and CT Findings

OBJECTIVE. Recurrent inflammation of the appendiceal stump after appendectomy is rare; published case series have included no more than six patients. The purpose of this study was to report the clinical and CT findings in a larger original series. MATERIALS AND METHODS. A combined PACS and electronic medical record search identified the cases of 14 patients (nine men, five women; mean age, 42.8 years) with a confident diagnosis of stump appendicitis evaluated at CT. In seven cases, CT images obtained at the initial presentation of appendicitis were available for review. Relevant clinical and CT findings were reviewed by three abdominal radiologists in consensus. RESULTS. The mean time interval between initial appendectomy and stump appendicitis was 5.1 years (range, 5 weeks-17.5 years); seven cases occurred within 1 year of appendectomy. Ten (71%) of initial appendectomies were performed by a laparoscopic approach. CT showed the mean appendiceal stump length was 3.2 cm (range, 1.3-7.0 cm); residual stump length measured 2 cm or longer in all but one case. Appendicoliths were identified at the stump in seven (50%) cases; the mean diameter was 0.9 cm and mean maximal attenuation, 247 HU. Extensive inflammatory changes surrounded the appendiceal stump at CT in all cases, including peristump abscess in four (29%) cases. Seven of the 14 patients (50%) went on to open surgical management with either remnant appendectomy or partial ileocecectomy. CONCLUSION. Stump appendicitis has a characteristic CT appearance and may occur within the first year after appendectomy or many years later. A long (≥ 2 cm) appendiceal stump from laparoscopic appendectomy and retained appendicolith may predispose adult patients to recurrent obstruction and inflammation.