Background: Helicobacter pylori infection is likely acquired in childhood. Helicobacter pylori is recognized as a cause of gastritis and peptic ulcer.
Objective: To investigate some noninvasive tests, particularly H pylori fecal antigen, for the diagnosis of H pylori infection in comparison with the gold-standard invasive test, esophagogastroduodenoscopy with biopsy.
Methods: We studied 250 patients (102 male; age range, 3-18 years) who underwent esophagogastroduodenoscopy with biopsy (histologic examination and rapid urease test) for a suspicious upper gastrointestinal disease; in all of them, fecal H pylori antigen, serum H pylori immunoglobulin G, and cytotoxin-associated gene product A immunoglobulin G were measured. Sensitivity and specificity of noninvasive tests were compared with those of the gold-standard esophagogastroduodenoscopy with biopsy.
Results: Ninety-three patients (37%) had positive histopathologic (Giemsa staining) and rapid urease test results. The H pylori fecal antigen revealed a sensitivity of 97%, a specificity of 98%, a positive predictive value of 97%, and a negative predictive value of 98%; serum H pylori immunoglobulin G had a sensitivity of 86%, a specificity of 80%, a positive predictive value of 72%, and a negative predictive value of 90%; and serum cytotoxin-associated gene product A immunoglobulin G had a sensitivity of 83%, a specificity of 80%, a positive predictive value of 71%, and a negative predictive value of 89%.
Conclusions: Our study demonstrates that among noninvasive and easily applicable tests, particularly in small children, H pylori fecal test is simple, suitable, and has high accuracy for the screening of H pylori-positive patients.
A curvature of a finger that bends inwards relative to the other fingers is a common observation during prenatal screening. When the angulation exceeds 10 degrees, it is known as "clinodactyly" and could suggest a variety of underlying issues. Even though it usually remains unnoticed during pregnancy, it may be a sign of serious fetal disease.
Importance: Objective measures of lung function are critical for assessing respiratory outcomes of prematurity. Among extremely low gestational age neonates (ELGANs) (< 29 weeks gestational age), high rates of neurodevelopmental impairment may interfere with lung function testing. Impulse oscillometry (IOS) is a noninvasive test of respiratory system mechanics not requiring forced expiration.
Study Objectives: To evaluate the capability and accuracy of magnetocardiography (MCG) to identify patients with ischemic chest pain from those with non-ischemic pain and to verify normalcy in the MCG in healthy subjects.
Design: We studied 133 patients (mean age 59 ± 14 years, 69 % male) with chronic or acute chest pain syndrome and 63 healthy subjects (mean age 41.7 ± 12.
Background: Bird fancier's disease is a type of HP occurring due to exposure to bird's antigen. The diagnosis is quite difficult as it requires the identification of an inciting agent with findings of HRCT and lung biopsy. The exposure is usually done by history with antigen-specific IgG and/or specific inhalational challenge testing.
Early noninvasive and rapid screening for colorectal cancer critically influences treatment outcomes. Breath testing, as an emerging screening technology, allows for noninvasive and convenient screening for different biomarkers and is a reliable screening method for various diseases. In this study, a meta-analysis of the accuracy and current status of volatile organic compounds present in exhaled breath for colorectal cancer detection was performed.
