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

The diagnosis of appendicitis in children can be difficult. Misdiagnosis may result in empirical treatment with antibiotics. The aim of this study was to determine whether initial treatment with antibiotics hindered subsequent diagnosis of appendicitis. Retrospective review of 311 children treated for appendicitis between 1999 and 2004. Patients were divided into two groups: Group 1: (n = 45) received antibiotics prior to a definitive diagnosis of appendicitis. Group 2: (n = 266) did not receive antibiotics prior to a diagnosis of appendicitis. Group 1 patients were significantly younger and more likely to be female than in group 2. Abdominal tenderness was less marked and there was a greater reliance on radiological investigations in patients receiving antibiotics. C-reactive protein and pre-operative temperature were significantly higher in group 1 patients compared to group 2. The perforation rate and complication rate were significantly greater in group 1. The commonest misdiagnoses were urinary tract infection and respiratory infection. Initial misdiagnosis results in significant delay before appendicectomy. This study shows that the clinical signs of acute appendicitis can be masked by prior treatment with antibiotics. The diagnosis of acute appendicitis must be considered and, if necessary, excluded in all children seen with abdominal pain who have recently been treated with antibiotics.
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PMID:Delayed diagnosis of appendicitis in children treated with antibiotics. 1673 26

The importance of prevention in late hematogenous infection is well understood but, because responsibility lies with general practitioners and other specialists, the orthopedic surgeon is usually not much interested. In both our and other countries, discussions are taking place on whether and to what extent antibiotic prevention should be carried out. Antibiotic prophylaxis of hematogenous infection is not indicated for all patients with joint arthroplasty, but only for a limited, defined group of patients at high risk. In these, however, the present state of knowledge suggests that prevention is necessary. A preventive treatment of late hematogenous infection is used for a procedure or a disease associated with risks in all the patients involved within two years of prosthetic joint implantation and, after this period, only in immunosuppressed patients. Surgery on the urogenital tract associated with the risk of bacteremia includes prostate gland surgery, operations for urinary bladder tumors, nephrolithotomy, extracorporeal lithotripsy and prostate biopsy. Certain conditions, such as urinary catheter presence, intermittent catheterization, urethral stent presence, urine retention and a history of urinary tract infection or prostate inflammation, pose an increased risk of bacterial colonization for the urogenital system. Dental procedures associated with a risk of bacteremia include tooth extraction, surgery on the parodontium, surgical extraction of an impacted tooth, dental implant treatment, procedures in a tooth's apical region, initial application of an orthodontic apparatus, intraligamentous blocks and also cleaning teeth and implants expected to bleed. Gynecological surgery with a risk of bacteremia are abdominal, vaginal and laparoscopic hysterectomies, surgery for cancer contaminated with vaginal bacteria, reconstruction surgery, operations on the pelvic floor for defects associated with urinary incontinence and use of xenotransplants. In obstetrics, a cesarean section carries some risks. In general surgery, the preventive administration of antibiotics is indicated, apart from situations always requiring antibiotic therapy, also for advanced forms of acute appendicitis, perirectal abscess, invasive endoscopy procedures on the colon, soft tissue phlegmona or abscess, surgical treatment of venous ulceration and pressure sores, and limb amputation. When inserting any piercing in patients with joint replacement at risk, it is recommended to do it with antibiotic administration; also, it is necessary to responsibly treat any inflammatory complication. The system of prevention for the late hematogenous infections of prosthetic joints is not developed as thoroughly as, for instance, it is in cardiology for patients with valve reconstruction. Because of the reasons given above, it is advisable to set up unambiguous guidelines for the prevention of late hematogenous infection in patients with joint replacement.
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PMID:[Late hematogenous infection of prosthetic joint]. 1845 11

Many host and bacterial factors contribute to the development of different Escherichia coli extra-intestinal infections. The aim of this study was to evaluate the roles of host and bacterial factors in different extra-intestinal E. coli infections. A total of 221 E. coli isolates collected from urine, bile and peritoneal fluid were included in this retrospective study. Four main phylogenetic groups of E. coli, 14 genetic determinants, static biofilm formation and antimicrobial resistance data were assessed, as well as the immunological status of the hosts. Group B2 was the most common phylogenetic group (30%), especially in cases of asymptomatic bacteriuria (ABU), urinary tract infection (UTI), acute appendicitis/gastrointestinal perforation, and spontaneous bacterial peritonitis (SBP), and was associated with elevated prevalence of papG III, fimH, sfa, iha, hlyA, cnf1, ompT and usp. Phylogenetic group A was most common in the isolates from asymptomatic bacteriocholia, biliary tract infection, and peritoneal dialysis (PD)-related peritonitis. There was similarity with respect to both phylogenetic groups and virulence factors in strains from faeces and ABU, and in strains from faeces and SBP/PD-related peritonitis. Host characteristics were important in patients with ABU, UTI, and SBP/PD-related peritonitis. Immunocompetence of hosts was associated with a relatively high prevalence of papG II, afa and iha, and relatively low antimicrobial resistance to fluoroquinolones. This study demonstrates that, in most E. coli extra-intestinal infections, phylogenetic group B2 was predominant and was more virulent than the three other phylogenetic groups in the Taiwanese population studied. The diverse patterns of host and bacterial factors demonstrate that there were different host and bacterial factors dominating in different extra-intestinal E. coli infections.
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PMID:Different roles of host and bacterial factors in Escherichia coli extra-intestinal infections. 1943 Dec 24

Laparoscopic appendectomy is the widely accepted treatment for acute appendicitis. This approach offers the potential of less pain, shorter hospital stay, and quicker return to activities. Traditionally, patients are hospitalized for 24 hours after laparoscopic appendectomy. This practice can be questioned due to the good results of other outpatient laparoscopic surgery. A retrospective review of 119 patients undergoing laparoscopic appendectomy for uncomplicated acute appendicitis was undertaken from January through September 2009; outpatient and inpatient laparoscopic appendectomies were compared. Patients were selected for outpatient management based upon physician discretion and their clinical course in operation and recovery rooms. Forty-two patients were dismissed on the day of surgery and 77 were admitted for 1 to 5 days postoperatively. No significant differences in age, gender, and preoperative comorbidities between outpatient and inpatient groups were found. Postoperative complications occurred in 2.4 per cent of outpatients and 11.7 per cent of inpatients (P = 0.16). Complications included superficial wound infections, urinary retention, urinary tract infection, intra-abdominal bleeding, pneumonia, and infected hematoma. Based upon this study, outpatient laparoscopic appendectomy can be performed safely in selected patients. This study provides the background for the present prospective protocol for routine outpatient laparoscopic appendectomy at our institution.
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PMID:Outpatient laparoscopic appendectomy for acute appendicitis. 2236 31

Acute appendicitis is often simulated by other entities like mesenteric adenitis, worm infestation, Meckel's diverticulitis, urinary tract infection and rarely omental torsion. We report two cases, a 6 year old boy and an 11 year old girl, who presented with symptoms and signs of acute appendicitis but upon exploration turned out to be omental torsion.
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PMID:Two cases of omental torsion mimicking acute appendicitis. 2483 89

Introduction. Acute appendicitis is the most common cause of acute abdomen, but atypical appendicitis may lead to delayed diagnosis and related complications. In this report, we present a very rare case of acute appendicitis causing right hydronephrosis. Case Report. A 54-year-old male patient who had been receiving antibiotic therapy due to the diagnosis of urinary tract infection for the last one week but had no clinical improvement was admitted to the emergency service. Abdominal computed tomography (CT) showed right hydronephrosis and a pelvic abscess. After appendectomy and abscess drainage had been performed, hydronephrosis was completely recovered. Discussion. The use of appendicitis scoring systems, abdominal ultrasonography (USG), abdominal CT, and diagnostic laparoscopy can be useful for the diagnostic process in patients presenting with acute abdomen. In our patient, we considered that the surgical treatment was delayed since the symptoms of acute appendicitis were suppressed by the antibiotic therapy that was being administered due to the complaints including symptoms of urinary tract infections. Conclusion. Atypical appendicitis may cause a delay in the diagnosis of acute appendicitis and thus may lead to serious complications such as right hydronephrosis, prolonged hospital stay, increased morbidity and mortality, and increased antibiotic resistance.
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PMID:Right Hydronephrosis as a Complication of Acute Appendicitis. 2706 99

Appendicovesical fistula (AVF) is an uncommon type of enterovesical fistula and a very rare complication of acute appendicitis. Herein, we report a case of 39-year-old male patient who presented with persistent urinary tract infection, recurrent abdominal pain, and pneumaturia. Imaging techniques including ultrasonography (USG), computed tomography (CT), and magnetic resonance imaging (MRI) were performed to identify the abnormality. However, definitive diagnosis of AVF was made by cystoscopy.
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PMID:A Very Rare Complication of Acute Appendicitis: Appendicovesical Fistula. 2723 65


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