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Query: UMLS:C0085693 (acute appendicitis)
 3,606 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Inflammation of the appendix is a common cause of acute abdominal pain. The etiology and pathophysiology of appendicitis have been well described. The initiating factor often is obstruction of the appendiceal lumen by inspissated stool, barium, food, parasites, or hyperplastic lymphoid tissue. Two patients have been identified who developed appendicitis temporally related to blunt abdominal trauma, without other clear etiology. Although absolute documentation of trauma as an etiologic factor in these cases is difficult, theoretical mechanisms for the occurrence are discussed. In the setting of right lower quadrant pain following mild to moderate blunt abdominal trauma, acute appendicitis should be considered as a possibility.
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PMID:Acute appendicitis following blunt abdominal trauma. Incidence or coincidence? 163 93

Four cases of diabetic ketoacidosis presenting with abdominal pain are reported. Case 1: a 14-year-old boy suffered from sudden onset of mid-abdominal pain, then migrating to the right lower quadrant. Nausea and vomiting occurred subsequently. Appendectomy was performed under the impression of acute appendicitis in an outside surgical clinic. The patient became comatose the next day and then was transferred to our hospital. Diabetic ketoacidosis was diagnosed after the detection of hyperglycemia, glycosuria, and ketonuria on the day of admission. Unfortunately, he expired on the same day in spite of vigorous resuscitation. Case 2: a 9-year-old boy complained of abdominal pain for 10 days. There was no specific finding in the physical examination. Diabetic ketoacidosis was confirmed four days later when conscious disturbance, dehydration, and tachypnea were noticed. Case 3: a 10-year-old girl presented with a history of intermittent abdominal pain for one month. The character of the abdominal pain was nonspecific. Glycosuria was detected in a pediatric clinic. Diabetic ketoacidosis was confirmed after her referral to our hospital. Case 4: a 5-year-old girl suffered from acute abdominal pain for four hours. She was found to have tachypnea, lethargy, and ill-looking. Diabetic ketoacidosis was diagnosed after serial examinations. The abdominal pain in diabetic ketoacidosis may lead the pediatrician into diagnostic error. Therefore, when a child presented with non-specific abdominal pain, a routine urine sugar should be checked in order not to miss the possibility of diabetic ketoacidosis.
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PMID:[Abdominal pain in diabetic ketoacidosis: report of four cases]. 212 98

Acute appendicitis is an uncommon complication of infectious mononucleosis (IM) and can readily be misdiagnosed because of the acute abdominal pain with which patients with IM occasionally present. A case report is presented of a patient with IM who developed acute appendicitis during the acute phase of the illness. The appendicitis progressed to the formation of an abscess, which was evacuated at surgery. Histologic examination of the appendix showed absence of lymphoid follicles in the mucosal layer and intense lymphoid infiltration of the mucosa and submucosa by a mixed diffuse proliferation of lymphoid cells with groups of immunoblasts scattered among them. The lymphoid infiltrate was mainly composed of T lymphocytes; the anticomplementary immunofluorescent staining of the appendix for EBNA (Epstein-Barr nuclear antigen) was negative. Three cases of appendicitis complicating IM published in the literature are reviewed. All had clinical and histopathologic features similar to those of our patient and were cured after surgery. Our case report together with the literature review confirms that appendicitis in the acute phase of IM has distinct clinical and histopathologic features and thus has to be considered a true complication of IM rather than merely a simultaneous disease.
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PMID:Acute appendicitis complicating infectious mononucleosis: case report and review. 218 98

A retrospective review of 1,220 cystic fibrosis (CF) patients between 1965 and 1989 identified 60 patients who underwent appendectomy. Ten had appendectomy prior to referral and 16 had an incidental appendectomy (primarily meconium ileus). Among the remaining 34 patients, acute appendicitis was present in 19 (1.8% incidence). "Classic appendicitis"--acute abdominal pain shifting to the right lower quadrant (RLQ), focal RLQ tenderness, and elevated white blood cell (WBC) count--was present in 15. Four additional inflamed appendixes were removed in patients following incorrect preoperative diagnosis. Thirteen of these 19 were perforated. Complications included wound infection (2), pelvic abscess (1), ileal obstruction requiring ileostomy (1), and pelvic hematoma (1). There were no deaths. One patient with acute RLQ pain and tenderness had a normal appendix. Seven patients (mean, 20 years) had chronic, intermittent, focal RLQ pain and tenderness not originating periumbilically with a normal WBC count and temperature. At exploration, these appendixes were enlarged and tensely distended with inspissated mucus. Microscopic examination showed no inflammation. Appendectomy resulted in resolution of symptoms without complications. Four additional patients with intermittent RLQ pain and tenderness and a history of recurrent intussusception presented with ileocolic intussusception. Persistent postreduction symptoms in three and failure of reduction in the fourth necessitated celiotomy at which time tensely distended appendixes were removed. Appendectomy led to resolution of symptoms. Three additional enlarged noninflammed appendixes were incidentally removed in asymptomatic patients undergoing unrelated intraabdominal procedures. Appendiceal disease in CF patients represents a spectrum ranging from simple mucous distention to acute appendicitis with perforation. CF patients with pain secondary to a noninflamed distended appendix represent a distinct syndrome cured by appendectomy.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:The spectrum of appendiceal disease in cystic fibrosis. 220 12

A torsion of the omentum with consecutive necrosis as a cause of acute abdominal pain or as a differential diagnosis of acute appendicitis is a rare finding. An overlook over the literature shows that since the first description of segmental necrosis of the omentum by Eitel et al. in 1899 only 300 cases were published. We report over another case, describe the clinical findings and the clinical symptomatology.
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PMID:[Torsion of a corner of the omentum as a cause of acute abdomen]. 232 48

In a survey of emergency admissions to hospital in rural Thailand, acute appendicitis was the commonest cause of acute abdominal pain. Estimates of the incidence of appendicitis, in two series comprising a total of 356 patients, at 3.2 and 3.7 per 10,000 population per year, were relatively high compared with reports from other warm climate countries. In comparison with 1825 cases in studies sponsored by the Organisation Mondiale de Gastroenterologie (OMGE), Thai patients with acute appendicitis were older, presented late and experienced more complications than those in 14 other countries. In Khon Kaen only 2-3% of the cases were children aged 0-9 years, compared with 9-26% in the OMGE series. In patients admitted to hospital with acute abdominal pain in Thailand, acute appendicitis was diagnosed more often than non-specific abdominal pain. The converse was true in the OMGE series. This may reflect the longer distances travelled to hospital by many patients and delays between onset of symptoms and admission to hospital. Acute appendicitis was the commonest definitive diagnosis in both series. This survey indicates that relatively high rates of acute appendicitis may occur in populations eating traditional diets. The results are consistent with the recently described hypothesis of an infective aetiology and increases in appendicitis rates may be expected in people born since the introduction of improvements in environmental sanitation. Further studies are needed to examine trends in the incidence of appendicitis in populations eating traditional diets with both high and low fibre content and to investigate the significance of changing social and environmental factors.
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PMID:Acute abdominal pain and appendicitis in north east Thailand. 258 11

We reviewed the files of all patients who entered the hospital because of acute abdominal pain within a period of one year in order to study the frequency of this symptom and its lethal effects. The total cases found (562) were divided into two groups: patients under 50 years of age (279) and patients older than that age (283). The most frequent causes in the first group were reno-urethral lithiasis, acute appendicitis and acute pancreatitis. While in the second group were abdominal wall hernias, peptic acid disease and mesenteric thrombosis. No differences where found between the sexes of patients. Hospital mortality was 13.9% and that related to surgery 20.9%. The most frequent cause of death among patients under 50 years of age was acute pancreatitis and in those older than 50 years of age it was peptic acid disease.
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PMID:[Morbidity and mortality in patients presenting with acute abdominal pain]. 269 93

Acute abdominal pain (AAP) is one of the most frequent causes of admission to an emergency department of a childrens' hospital. The diagnosis viewed with the most apprehension is acute appendicitis. We present the results of a prospective study on the evaluation of the clinical and paraclinical symptoms generally observed in an AAP, and discuss the benefit of a diagnostic score for acute appendicitis. Twenty-five different diagnoses were observed, the 5 most frequent being: "non specific" (34.2%), constipation (16%), otorhinolaryngological infection (11.6%), gastroenteritis (10.7%) and acute appendicitis (10.5%). The study of 12 symptoms showed an elevated sensitivity for each one (92-50%), but a low positive predictive value (72-12%). Rigid adhesion to a diagnostic score would have led to unnecessary medical examination.
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PMID:[Prospective evaluation of admission for acute abdominal pain in children]. 279 8

In 194 patients presenting with acute abdominal pain from whom sequential serum samples were taken, the frequency of yersiniosis, established serologically, was significantly higher (23%) than in 320 control subjects (2%). Yersiniosis occurred in 31% of patients with acute appendicitis. Acute-phase serum samples only, obtained in a further 307 patients, yielded a falsely low frequency of yersiniosis (4%). Y pseudotuberculosis was five times more common than Y enterocolitica, and Y pseudotuberculosis type IV was the most common serotype, accounting for 43% of Yersinia infections. Yersinia may play a more important part in the aetiology of acute abdominal pain, and particularly acute appendicitis, than has been previously appreciated. Antibody titres to both Y enterocolitica and Y pseudotuberculosis frequently rise late in infections causing abdominal pain. Consequently analysis of acute-phase serum samples alone leads to underdiagnosis of yersiniosis.
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PMID:Yersinia infection and acute abdominal pain. 288 Oct 83

In 81 patients with acute abdominal pain, laparoscopy was performed because of diagnostic doubt. Diagnosis by clinical methods proved to be correct in 42 of the patients and laparoscopy gave correct diagnosis in 70. Appendectomy revealed acute appendicitis in 19 patients and normal appendix in five. Failure to establish a diagnosis by laparoscopy was due to incomplete visualization of appendix in nine patients, pelvic adhesions in one patient, and failure to enter the peritoneal cavity in another. A clinical diagnosis of acute appendicitis could be invalidated by laparoscopy in 17 of 40 patients. Negative laparotomy is potentially avoidable by use of laparoscopy when a diagnosis of appendicitis is questionable. Laparoscopy may therefore be warrantable in such cases.
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PMID:Laparoscopy in patients admitted for acute abdominal pain. 293 52


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