IMPORTANCE At the turn of the 21st century, studies evaluating the change in incidence of appendicitis over time have reported inconsistent findings. OBJECTIVES We compared the differences in the incidence of appendicitis derived from a pathology registry versus an administrative database in order to validate coding in administrative databases and establish temporal trends in the incidence of...

Hydronephrosis is a rare complication of acute appendicitis. We present a case of missed appendicitis in a 52-year-old female which presented as a right-sided hydronephrosis. 2 days after admission to the Department of Urology CT revealed acute appendicitis for what open appendectomy was performed. Acute appendicitis can lead to obstructive uropathy by periappendiceal inflammation due to adjace...

OBJECTIVES Trauma and appendicitis are the most common conditions of childhood for which surgical consultation is sought in emergency departments. Occasionally, appendicitis and trauma exist together, which causes an interesting debate whether trauma has led to appendicitis. We aimed to evaluate our patients with traumatic appendicitis and to discuss their properties in the light of the literat...

INTRODUCTION A family history of appendicitis has been reported to increase the likelihood of the diagnosis in children and in a retrospective study of adults. We compare positive family history with the diagnosis of acute appendicitis in a prospective sample of adults. METHODS We conducted a prospective observational study of a convenience sample of 428 patients. We compared patients with su...

OBJECTIVE To prospectively validate the Pediatric Appendicitis Score (PAS), developed on a cohort of children with abdominal pain suggestive of appendicitis, in unselected children with abdominal pain who present to the emergency department. STUDY DESIGN Over a 19-month period, we prospectively recruited children 1 to 17 years old who came to our tertiary pediatric emergency department, with ...

BACKGROUND The early diagnosis of acute abdomen is of great importance. To date, several inflammatory markers have been used for the diagnosis of acute abdominal conditions, including acute appendicitis. The aim of this study was to evaluate the diagnostic utility of D-dimer, Procalcitonin (PCT) and C-reactive protein (CRP) measurements in the acute appendicitis. METHODS This prospective stud...

BACKGROUND Appendicitis is one of the most frequent acute surgical conditions of the abdomen, and appendectomy is one of the most commonly performed operations in the world. However, epidemiological data on appendicitis have not been reported for South Korean or East Asian populations. METHODS We analyzed the epidemiological features and lifetime risk of appendicitis and appendectomy in South...

BACKGROUND Accurately diagnosing appendicitis can be difficult. This retrospective study aimed to evaluate the ability of the neutrophil-to-lymphocyte ratio (NLR) to predict acute appendicitis pre-operatively and to differentiate between simple and complicated appendicitis. METHODS A database of 1067 patients who underwent surgery was evaluated. Based on postoperative histopathological examin...

BACKGROUND Environmental determinants of appendicitis are poorly understood. Past work suggests that air pollution may increase the risk of appendicitis. OBJECTIVES We investigated whether ambient ground-level ozone (O3) concentrations were associated with appendicitis and whether these associations varied between perforated and nonperforated appendicitis. METHODS We based this time-stratif...

Appendicitis is one of the most common causes of the acute abdomen often requiring emergent surgery. Delayed diagnosis leads to the progression of uncomplicated appendicitis to complicated (gangrenous, perforated) appendicitis, often changing clinical management. Computed tomography and ultrasound are imaging modalities of choice to preoperatively diagnose appendicitis. Recent concerns of radia...