Alireza Pedram; Fatemeh Asadian; Naghmeh Roshan
Volume 7, Issue 3 , July 2019, , Pages 278-283
Abstract
Objective: To evaluate the diagnostic accuracy of ultrasonography in pediatric acute appendicitis.Methods: In this cross-sectional study, 230 children aged 5-15 years with the diagnosis of acute appendicitis were studied. This study included the evaluation of demographic indices, ultrasound findings ...
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Objective: To evaluate the diagnostic accuracy of ultrasonography in pediatric acute appendicitis.Methods: In this cross-sectional study, 230 children aged 5-15 years with the diagnosis of acute appendicitis were studied. This study included the evaluation of demographic indices, ultrasound findings at diagnosis, and then comparing the results with the description of the patient's procedure and the pathology report of these patients. Patients who did not undergo ultrasound before surgery or their ultrasound did not include the evaluation of appendicitis or their pathologic report was not available were excluded.Results: Overall, we have included a total number of 230 children with clinical diagnosis of acute appendicitis among whom there were 121 (52.6%) girls and 109 (47.4%) boys with mean age of 11.44 ± 2.90 years. Preoperative ultrasound report showed that 51.3% were normal and 48.7% had acute appendicitis. 34.8% had normal appendix and 65.2% had a pathological diagnosis of acute appendicitis. The sensitivity and specificity of ultrasound in these children were 58% and 68%, respectively. Positive and negative predictive values were 77% and 46%, respectively. The area under curve (AUC) was 0.853 (CI 95% 0.788-0.917) indicating a test with moderate accuracy. Conclusion: According to the obtained results, abdominal ultrasonography is of acceptable diagnostic accuracy in pediatric patients with acute appendicitis. The use of auxiliary techniques in ultrasound would increase the sensitivity and specificity in the diagnosis of acute appendicitis in children.
Golnar Sabetian; Fatemeh Aalinezhad; Mansoor Masjedi; Shahram Paydar
Volume 7, Issue 1 , January 2019, , Pages 84-87
Abstract
Pneumothorax as a complication of pleural catheter insertion could be very dangerous in patients under mechanical ventilation. In ICU patients, physical examination and supine chest x-ray (CXR) are poorly sensitive in diagnosis of pneumothorax. Moreover, CT scan has also disadvantages, such as radiation, ...
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Pneumothorax as a complication of pleural catheter insertion could be very dangerous in patients under mechanical ventilation. In ICU patients, physical examination and supine chest x-ray (CXR) are poorly sensitive in diagnosis of pneumothorax. Moreover, CT scan has also disadvantages, such as radiation, high cost, time consuming and need for patient transfer to radiology suit. In comparison to CXR and CT scan, ultrasonography is an available tool for early and rapid detection of this complication. In this study, we reported a 21-year-old woman, a victim of trauma, undergone pleural catheter insertion for drainage of hemothorax. She developed pneumothorax after the procedure. We discuss the usefulness of ultrasonography after pleural catheter insertion and concluded its adequacy and effectiveness in early diagnosis and also follow-up of pneumothorax.
Mojtaba Keikha; Mohammad Salehi-Marzijarani; Reihane Soldoozi Nejat; Hojat sheikh Motahar Vahedi; Seyed Mohammad Mirrezaie
Volume 6, Issue 4 , October 2018, , Pages 271-278
Abstract
Objective: To perform a diagnostic accuracy of the rapid ultrasound in shock (RUSH) to diagnose the etiology of undifferentiated shock in patients presenting to the emergency department (ED).Methods: We searched the Medline via PubMed, Scopus, and ISI Web of Knowledge till July 2017. Two independent ...
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Objective: To perform a diagnostic accuracy of the rapid ultrasound in shock (RUSH) to diagnose the etiology of undifferentiated shock in patients presenting to the emergency department (ED).Methods: We searched the Medline via PubMed, Scopus, and ISI Web of Knowledge till July 2017. Two independent reviewers screened studies for eligibility. Our study analysis is planned in accordance with the guidelines for meta–analysis of diagnostic studies. In the systematic search, of 397 references, 295 were excluded on the basis of the title and abstract. For the remaining 102 articles, the full text was retrieved and critically reviewed. After the selection process, five papers were included.Results: The pooled estimate of all data showed that the RUSH protocol exhibited high sensitivity (0.87, 95% Confidence Interval (CI): 0.80-0.92, I2 = 46.7%) and specificity (0.98, 95% C. I.: 0.96-0.99, I2 = 30.8%). The AUC for SROC, a global measure of the RUSH protocol performance, was 0.98 ± 0.01, indicates the high accuracy of the test. Positive and negative likelihood ratios reported from the studies ranged from 9.83 to 51.32 and 0.04 to 0.33, respectively. The pooled estimate of all data showed that the RUSH protocol exhibited high positive likelihood ratio (19.19, 95% C. I.: 11.49-32.06, I2 = 14.1%) and low negative likelihood ratio (0.23, 95% C. I.: 0.15-0.34, I2 = 18.4%).Conclusion: This meta-analysis suggests that RUSH protocol has generally good role to distinguish the states of shock in patients with undifferentiated shock referred to the emergency department.
Shahram Paydar; Behnam Dalfardi; Bardia Zangbar-Sabegh; Hossein Heidaripour; Leila Pourandi; Alireza Shakibafard; Mehdi Tahmtan; Leila Shayan; Mohammad Hadi Niakan
Volume 6, Issue 1 , January 2018, , Pages 26-30
Abstract
Objective: To determine the predictive value of repeated abdominal ultrasonography in patients with multiple trauma and decreased level of consciousness (LOC).Methods: This prospective cross-sectional study was conducted over a six-month period at Shahid Rajaee Trauma Hospital, Shiraz, Iran. We included ...
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Objective: To determine the predictive value of repeated abdominal ultrasonography in patients with multiple trauma and decreased level of consciousness (LOC).Methods: This prospective cross-sectional study was conducted over a six-month period at Shahid Rajaee Trauma Hospital, Shiraz, Iran. We included hemodynamically stable blunt abdominal trauma patients with a decreased LOC (Glasgow Coma Scale ≤ 13) who were referred to the neurosurgery ICU ward. Included cases underwent 1 contrast-enhanced CT scan and two-time ultrasonographic study of the abdomen with an interval of 48 hours. The diagnostic accuracy of the ultrasonography was determined according to the CT-scan results.Results: Overall 80 patients with mean age of 37.75 ± 18.67 years were included. There were 17 (21.3%) women and 63 (78.8%) men among the patients. Compared with the CT-Scan, the first ultrasonography showed a sensitivity of 60%, specificity of 80%, PPV of 16.60%, NPV of 96.80%, and a diagnostic accuracy of 70%. The same values for the second ultrasonographic study were 80%, 79%, 20%, 98%, and 79%, respectively. In 4 (5%) patients whose first ultrasonography and CT scan results were negative, the second ultrasonography was positive for injury.Conclusion: In patients with blunt trauma to the abdomen, when the only indication of abdominal CT scan is a decreased LOC, two ultrasonographic studies can replace a CT imaging.
