ABSTRACT
Objective To investigate the clinical value of the polymerase chain reaction (PCR) technique in detection of pediatric helicobacter pylori(HP) infection.Methods A total of 130 children with different digestive tract symptoms received esophagogastroduodenoscopy,and 120 children between 3 and 17 years old were enrolled.The gastric antrum mucosa was taken under the gastroscope for 2 blocks,and the gastric juice was absorbed as the specimen.One block of gastric antrum mucosa was examined histopathologi-cally,and the other block of gastric antrum mucosa and gastric juice were examined by PCR.We used the primers UreC,HP-16s,CSTP to detect HP,and then used the primers Cag750 and Cag595 to detect CagA. Results A total of 28 cases(23.33%) of upper gastrointestinal ulcer were detected by gastroscopy,and HP was detected by histopathological method in 26 cases(21.67%),and 41 cases(34.17%) were detected by PCR method.The detection rate of HP by PCR was significantly higher than that of HP in pathological method (χ2= 4.659,P = 0.031). By pathological examination of HP,14 cases (50%) and 12 cases (13.04%) with peptic ulcers and no peptic ulcers were detectd,and the difference in detection rate was statistically significant(χ2=17.275,P<0.001).Samples of children with peptic ulcers and no peptic ulcers were detected in 16 cases(57.14%) and 25 cases (27.17%) by PCR,and the difference in detection rate was statistically significant (χ2=8.572,P=0.003).The CagA were detected in 7 cases of peptic ulcers and 7 cases of non peptic ulcers by PCR,and the difference in detection rate was statistically significant(25.00%vs 7.61%,χ2=6.300,P=0.012).Conclusion The PCR method could quickly and sensitively detect the HP and its CagA gene,and the detection of gastric mucosa and gastric juice by PCR could improve the detection rate of HP.A combination of PCR and pathological method is suggested as the detection method for children′s HP infection.
ABSTRACT
Background and objectives: Solitary thyroid nodule(STN} is a common clinical entity encountered in routine clinical practice.STN is defined as a single swelling involving either lobe of thyroid or isthmus of thyroid gland. Present study was undertaken to know distribution of lesion according to age and sex, and also to evaluate efficacy of FNAC in diagnosis of clinically obvious and palpable solitary thyroid nodule. Method: This study was done on 75cases operated in our hospital from May 2012 to May 2016. All patients included in the study were submitted to FNAC and ultrasonography. All patients were subjected to surgery and histopathology examination was obtained. Results: Out of 75 cases of thyroid lesions, 63 cases were benign (84%), 6 cases were malignant (8%) and 6 cases were suspicious(8%) on FNAC. On Histopathological examination, 60 cases were benign(80%) and 15 cases were malignant(20%). Conclusion: FNAC is a single best investigation for preoperative evaluation for STN to differentiate between benign and malignant nodules with 88% accuracy rate.[Doshi H NJIRM2016; 7(5):53-55]