Evaluation of efficacy of serum and broncho-alveolar lavage Galactomannan estimation by ELISA in high-risk persistent febrile neutropenic patients

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 16505-16505
Author(s):  
M. Sengar ◽  
L. Kumar ◽  
S. Thulkar ◽  
V. Kochupillai
Keyword(s):  
High Risk ◽  
Predictive Value ◽  
Diagnostic Yield ◽  
Miliary Tuberculosis ◽  
Screening Tools ◽  
High Resolution Computed Tomography ◽  
Ct Guided ◽  
Chest X Ray ◽  
Neutropenic Patients ◽  
Sensitivity Specificity

16505 Background: Chest infections constitute 36% of all infections in our acute leukemia patients. Conclusively establishing the diagnosis of invasive fungal aspergillosis (IPA), an important cause pulmonary infiltrates and mortality in high-risk febrile neutropenic patients, however, is difficult. We therefore evaluated the value of ELISA for Galactomannan (Gm) antigen and correlated the results with radiological findings. Methods: Twenty patients with persistent high-risk febrile neutropenia were assessed with chest X-ray, high resolution computed tomography (HRCT) chest and bronchoalveolar lavage (BAL) from the affected segment on day 5 of fever. Microbial cultures of blood, sputum and BAL and Galactomannan estimation in serum and BAL were done. IPA was defined as per the Mycoses Study Group criteria. Sensitivity, specificity and negative and positive predictive value of Galactomannan assay and diagnostic yield of each investigation was determined. Results: Diagnostic yield of CXR was 10%, blood culture, mainly gram negative bacilli, 15%, and BAL 20% (Aspergillus - 10%). Based on microbiology, radiology and cytopathology IPA was diagnosed in 16 cases (proven -1, probable -2, possible -13) and miliary tuberculosis, bacterial pneumonia and nocardiosis constituted the remaining. Nodules and halo sign were the most frequent (60%) CT findings in IPA. Sensitivity, specificity and positive and negative predictive value for serum were 78%, 100%, 100% and 64%, respectively, and for BAL, were 87.5%, 100%, 100% and 75%, respectively. Conclusions: CT-guided BAL and serial serum GM estimations are valuable non-invasive screening tools for IPA in high-risk persistent febrile neutropenic patients. No significant financial relationships to disclose.

scholarly journals Efficiency of non-invasive prenatal screening in pregnant women at advanced maternal age

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Hui Zhu ◽  
Xiaoxiao Jin ◽  
Yuqing Xu ◽  
Weihua Zhang ◽  
Xiaodan Liu ◽  
...  
Keyword(s):  
High Risk ◽  
Pregnant Women ◽  
Predictive Value ◽  
Trisomy 21 ◽  
Maternal Age ◽  
Prenatal Screening ◽  
Advanced Maternal Age ◽  
Youden Index ◽  
Non Invasive ◽  
Sensitivity Specificity

Abstract Background Non-invasive prenatal screening (NIPS) is widely used as the alternative choice for pregnant women at high-risk of fetal aneuploidy. However, whether NIPS has a good detective efficiency for pregnant women at advanced maternal age (AMA) has not been fully studied especially in Chinese women. Methods Twenty-nine thousand three hundred forty-three pregnant women at AMA with singleton pregnancy who received NIPS and followed-up were recruited. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV), receiver operating characteristic (ROC) curves and the Youden Index for detecting fetal chromosomal aneuploidies were analyzed. The relationship between maternal age and common fetal chromosomal aneuploidy was observed. Results The sensitivity, specificity, PPV, NPV of NIPS for detecting fetal trisomy 21 were 99.11, 99.96, 90.98, and 100%, respectively. These same parameters for detecting fetal trisomy 18 were 100, 99.94, 67.92, and 100%, respectively. Finally, these parameters for detecting trisomy 13 were 100, 99.96, 27.78, and 100%, respectively. The prevalence of fetal trisomy 21 increased exponentially with maternal age. The high-risk percentage incidence rate of fetal trisomy 21 was significantly higher in the pregnant women at 37 years old or above than that in pregnant women at 35 to 37 years old. (Youden index = 37). Conclusion It is indicated that NIPS is an effective prenatal screening method for pregnant women at AMA.

scholarly journals Reliability of digital panoramic radiography in the diagnosis of carotid artery calcifications

2014 ◽  
Vol 47 (1) ◽  
pp. 28-32 ◽  
Author(s):  
Vilson Lacerda Brasileiro Junior ◽  
Aníbal Henrique Barbosa Luna ◽  
Marcelo Augusto Oliveira de Sales ◽  
Tânia Lemos Coelho Rodrigues ◽  
Priscilla Lopes da Fonseca Abrantes Sarmento ◽  
...  
Keyword(s):  
High Risk ◽  
Carotid Artery ◽  
Positive Predictive Value ◽  
Predictive Value ◽  
Carotid Arteries ◽  
Panoramic Radiography ◽  
Digital Panoramic Radiography ◽  
Significant Difference ◽  
Mcnemar’S Test ◽  
Sensitivity Specificity

Objective The present study evaluated the reliability of digital panoramic radiography in the diagnosis of carotid artery calcifications. Materials and Methods Thirty-five patients under high-risk for development of carotid artery calcifications who had digital panoramic radiography were referred to undergo ultrasonography. Thus, 70 arteries were assessed by both methods. The main parameters utilized to evaluate the panoramic radiography reliability in the diagnosis of carotid artery calcifications were accuracy, sensitivity, specificity and positive predictive value of this method as compared with ultrasonography. Additionally, the McNemar's test was utilized to verify whether there was a statistically significant difference between digital panoramic radiography and ultrasonography. Results Ultrasonography demonstrated carotid artery calcifications in 17 (48.57%) patients. Such individuals presented with a total of 29 (41.43%) carotid arteries affected by calcification. Radiography was accurate in 71.43% (n = 50) of cases evaluated. The degree of sensitivity of this method was 37.93%, specificity of 95.12% and positive predictive value of 84.61%. A statistically significant difference (p < 0.001) was observed between the methods evaluated in their capacity to diagnose carotid artery calcifications. Conclusion Digital panoramic radiography should not be indicated as a method of choice in the investigation of carotid artery calcifications.

scholarly journals Diagnostic Value of Rapid On-Site Evaluation for CT-Guided Percutaneous Fine Needle Aspiration in the Diagnosis of Pulmonary Occupying Lesions

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Tian-Feng Peng ◽  
Tao Ren ◽  
Han-Sheng Wang ◽  
Zhe-Xiang Feng ◽  
Mei-Fang Wang
Keyword(s):  
Lung Cancer ◽  
Fine Needle Aspiration ◽  
Predictive Value ◽  
Rate Sensitivity ◽  
Needle Aspiration ◽  
Ct Guided ◽  
Fine Needle ◽  
Site Evaluation ◽  
Sensitivity Specificity ◽  
The Rose

Objective. Rapid on-site evaluation (ROSE) is an effective and efficient auxiliary examination, but its value for CT-guided percutaneous fine-needle aspiration (FNA) in the diagnosis of pulmonary occupying lesions is unclear. This study is aimed at evaluating the clinical utility of ROSE for CT-guided percutaneous FNA. Methods. We reviewed 234 patients from September 2018 to April 2019. The result using ROSE was compared with the final pathological diagnosis of CT-guided percutaneous FNA, and we also compared the complications between the ROSE group and the NO-ROSE group. The final pathological diagnosis results served as the gold standard. We also analyzed the diagnostic rate of FNA and the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of malignancy. The correlation between diverse pathological types of lung cancer was also taken into consideration. Results. In total, 132 patients underwent CT-guided percutaneous FNA with ROSE (ROSE group), and 102 did not (NO-ROSE group). The diagnostic rate, sensitivity, specificity, PPV, and NPV of the ROSE group were 91.6%, 89.1%, 94.1%, 93.4%, and 90.1%, respectively. The complication rates of the ROSE group and the NO-ROSE group were 8.33% and 16.67%, respectively. This difference was not statistically significant ( P > 0.05 ). In subsets of adenocarcinoma (AC) and small cell lung cancer (SCLC) patients, the ROSE result was highly consistent with the final pathological result. Conclusion. CT-guided percutaneous FNA combined with ROSE has a high diagnostic rate, sensitivity, and specificity for pulmonary occupying lesions and an acceptable rate of complications. This method is worthy of wide use given its high efficiency and safety.

scholarly journals Initial Experience in CT-Guided Percutaneous Transthoracic Needle Biopsy of Lung Lesions Performed by a Pulmonologist

2019 ◽  
Vol 8 (6) ◽  
pp. 821 ◽  
Author(s):  
June Hong Ahn ◽  
Jong Geol Jang
Keyword(s):  
Diagnostic Accuracy ◽  
Complication Rate ◽  
Predictive Value ◽  
Needle Biopsy ◽  
Diagnostic Yield ◽  
Safe Procedure ◽  
Transthoracic Needle Biopsy ◽  
Ct Guided ◽  
Lung Lesions ◽  
Percutaneous Transthoracic Needle Biopsy

In the diagnosis of lung lesions, computed tomography (CT)-guided percutaneous transthoracic needle biopsy (PTNB) has a high diagnostic yield and a low complication rate. The procedure is usually performed by interventional radiologists, but the diagnostic yield and safety of CT-guided PTNB when performed by pulmonologists have not been evaluated. A retrospective study of 239 patients who underwent CT-guided PTNB at Yeungnam University Hospital between March 2017 and April 2018 was conducted. A pulmonologist performed the procedure using a co-axial technique with a 20-gauge needle. Then diagnostic yield and safety were assessed. The overall sensitivity, specificity, positive predictive value, and negative predictive value for the diagnosis of malignancy were 96.1% (171/178), 100% (46/46), 100% (171/171), and 86.8% (46/53), respectively. The diagnostic accuracy was 96.9% (217/224) and the overall complication rate was 33.1% (82/248). Pneumothorax, hemoptysis, and hemothorax occurred in 27.0% (67/248), 5.2% (13/248), and 0.8% (2/248) of the patients, respectively. Univariate analyses revealed that pneumothorax requiring chest tube insertion was a significant risk factor (odds ratio, 25.0; p < 0.001) for diagnostic failure. CT-guided PTNB is a safe procedure with a high diagnostic accuracy, even when performed by an inexperienced pulmonologist. The results were similar to those achieved by interventional radiologists as reported in previously published studies.

Molecular testing (strand displacement assay) for identification of urethral gonorrhoea in men: can it replace culture as the gold standard?

2005 ◽  
Vol 16 (6) ◽  
pp. 430-432 ◽  
Author(s):  
H L Wheeler ◽  
C J Skinner ◽  
A Khunda ◽  
C Aitken ◽  
D Perpanthan ◽  
...  
Keyword(s):  
Predictive Value ◽  
Diagnostic Yield ◽  
Molecular Testing ◽  
Strand Displacement ◽  
Specific Test ◽  
Strand Displacement Amplification ◽  
Conventional Culture ◽  
Study Population ◽  
Displacement Assay ◽  
Sensitivity Specificity

The objective was to evaluate the performance of Becton Dickinson's BD Probe TecTM (BDPT) strand displacement amplification (SDA) test for the detection of Neisseria gonorrhoeae on urethral specimens from men with urethritis compared with conventional culture and to show that SDA improves the diagnostic yield of gonorrhoea infections (GC). Anonymized retrospective testing of stored urethral swab samples from men attending genitourinary services in East London was performed using SDA. The prevalence of GC culture positive infections in this sample was 20/152 (13%). The sensitivity, specificity, positive predictive value and negative predictive value for the BDPT-SDA system compared with culture were 100%, 95%, 77% and 100%, respectively. In this study population, the BDPT-SDA assay was a highly sensitive and specific test for the diagnosis of N. gonorrhoeae from urethral swabs in men. Therefore, SDA can be used to complement culture in the diagnosis of N. gonorrhoeae infection. No ethics committee approval was obtained as all samples were anonymized.

Rater

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e20678-e20678
Author(s):  
B. Rangarajan ◽  
K. Prabhash ◽  
R. Nair ◽  
H. Menon ◽  
P. Jain ◽  
...  
Keyword(s):  
High Risk ◽  
Risk Stratification ◽  
Predictive Value ◽  
Risk Index ◽  
Febrile Episode ◽  
Index Score ◽  
Low Risk ◽  
Mascc Score ◽  
Sensitivity Specificity ◽  
Risk Index Score

e20678 Background: Management of neutropenic fever is based on risk stratification of the episode which helps in optimizing treatment. MASCC is the most commonly used for risk stratification Patients with a score of > 21 were regarded as low risk; patients with a score of <21 were regarded as high risk. We tried to validate the MASCC index for our ethnic population. Methods: Patients were recruited throughout a 12 month period. Inclusion criteria were diagnosis of hematolymphoid malignancy, neutropenic febrile episode secondary to chemotherapy or during induction therapy of acute leukemia and more than 18 years of age All patients were risk stratified, hospitalized and treated with broad-spectrum, empiric, intravenous antibiotic therapy until recovery or outcome of the event. The incidence of medical complications in both groups and death related to the neutropenic infection was recorded. The data was entered on SPSS software and MASCC criteria was analyzed for sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV). Results: A total of 81 febrile neutropenic episodes were included; 34 classified as low risk and 47 as high risk according to MASCC risk index score. The sensitivity, specificity, PPV, NPV and accuracy of MASCC risk index score were 45.5%, 40%, 11%, 82%, 40.7%. We subsequently analyzed the subset of Acute Myeloid Leukemia (AML) patients as they were the majority comprising of 62/81 episodes. The subset of AML patients risk stratified according to MASCC risk index showed sensitivity, specificity, PPV, NPV and accuracy of 71%, 25.5%, 11%, 87.5%, 31% respectively. Conclusions: In our patient group, the value of MASCC score is limited with poor sensitivity, specificity and PPV. This trend is also seen in the subset analysis of AML patients. The value of the MASCC index with the score of 21 as the cut-off between low risk and high risk seems limited in our patients and requires confirmation with larger set of patients. No significant financial relationships to disclose.

scholarly journals Clinical Efficiency of Non-invasive Prenatal Screening for Common Trisomies in Low-Risk and Twin Pregnancies

2021 ◽  
Vol 12 ◽  
Author(s):  
Yanfei Xu ◽  
Pengzhen Jin ◽  
Yu Lei ◽  
Yeqing Qian ◽  
Yuqing Xu ◽  
...  
Keyword(s):  
High Risk ◽  
Predictive Value ◽  
Prenatal Screening ◽  
Low Risk ◽  
Trisomy 13 ◽  
Non Invasive ◽  
Clinical Efficiency ◽  
Sensitivity Specificity ◽  
Twin Pregnancies ◽  
Singleton Pregnancies

To evaluate the clinical efficiency of non-invasive prenatal screening (NIPS) for fetal aneuploidies in low-risk and twin pregnancies, patients who received NIPS in a tertiary university hospital were enrolled, and their clinical data, NIPS results and pregnancy outcomes were collected. Patients were divided into singleton and twin pregnancies, and then those with singleton pregnancies were divided into low- and high-risk pregnancies. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were estimated. Comparisons were made on the clinical efficiency of NIPS between singleton and twin pregnancies, as well as between low- and high-risk pregnancies. Of 66,172 patients enrolled, 59,962 were eligible for analysis. The sensitivity, specificity and NPV were ≥ 99% in singleton and twin pregnancies. The PPVs were 90.4, 56.6, and 13.0% in singleton pregnancies, while 100, 33.3, and 0% in twin pregnancies for trisomy 21 (T21), trisomy 18 (T18) and trisomy 13 (T13), respectively (P &gt; 0.05 for all). The PPVs were 97.4 and 90.0% in high-risk pregnancies, while 78.6 and 16.7% in low-risk pregnancies for T21 and T18, respectively (P &lt; 0.05 for all). In summary, the performance of NIPS in singleton pregnancies was similar to that in twin pregnancies. NIPS can be recommended for all pregnancies regardless of the risks.

scholarly journals Rigid Sigmoidoscopic Examination, an Investigation Down but Not Out: A 5-Year Single-Center Experience on 9418 Patients

2019 ◽  
Vol 10 (01) ◽  
pp. 044-048 ◽  
Author(s):  
Sandeep V. Nair ◽  
Thazhath Mavali Ramachandran ◽  
Prajob Prasad Geevarghese ◽  
N. Sunil Kumar ◽  
Shine J Pakalomattom
Keyword(s):  
Predictive Value ◽  
Diagnostic Yield ◽  
Rectal Ulcer ◽  
Solitary Rectal Ulcer Syndrome ◽  
Sigmoidoscopic Examination ◽  
Medical College ◽  
Single Center Experience ◽  
Bleeding Per Rectum ◽  
Inflammatory Bowel ◽  
Sensitivity Specificity

ABSTRACT Background: Rigid sigmoidoscopy (RS) in the present era of flexible sigmoidoscopies is falling out of favor although it continues to be used in some centers as an outpatient (OP) department procedure. Aims: This study aims to determine the utility of RS for diagnosis of rectosigmoidal pathologies in the OP setting with emphasis on neoplastic lesions. Methods: We retrospectively studied the RS records and histopathology reports (HPRs) of 5 years (July 2013–June 2018) done in the Department of Gastroenterology at Medical College Calicut. Results: During the study period, 9418 RS examinations were done, and a total of 6921 abnormalities were picked up, giving a diagnostic yield of 73.5%. Most common indication was bleeding per rectum (PR) (51%), followed by constipation (29%). The most common lesion found was hemorrhoids 39.8% followed by proctitis 13.7%, neoplasms 9.7%, and others 10.3% while 26.5% studies were normal. HPRs showed 7.7% to be malignant, 5.8% were adenoma, 12.2% were inflammatory bowel disease ulcerative colitis (IBD UC), 2.2% were solitary rectal ulcer syndrome, 1.2% nonspecific colitis, 1.7% nonneoplastic polyps, 2.7% were normal, and 1.4% were inconclusive. Of the 4812 patients with complaints of bleeding PR, 4739 (98.5%) had a diagnosis after RS, of which hemorrhoids (72.7%) was the most common cause followed by proctitis (14.2%), neoplasm (9%), and others (4.1%). The sensitivity, specificity, positive predictive value, and negative predictive value of RS in detecting neoplasia was 98.2%, 96.8%, 66.1%, and 99.9%, respectively, when HPR was gold standard. RS was found to be effective for assessing activity in IBD UC. Conclusion: RS is a simple, cheap, and effective tool for diagnosing various rectosigmoid pathologies. RS can be used as an effective screening test for rectosigmoid pathologies, especially neoplasia and IBD UC.

scholarly journals Diagnostic yield of transbronchial needle aspiration for lymphoma

2016 ◽  
Vol 22 (3) ◽  
pp. 67
Author(s):  
B Sonnekus ◽  
J Steenkamp ◽  
M Louw ◽  
C F N Koegelenberg
Keyword(s):  
Predictive Value ◽  
Diagnostic Yield ◽  
Cost Effective ◽  
Final Diagnosis ◽  
Needle Aspiration ◽  
Tracheobronchial Tree ◽  
Transbronchial Needle Aspiration ◽  
Predictive Values ◽  
Hilar Adenopathy ◽  
Sensitivity Specificity

<p>Background. Transbronchial needle aspiration (TBNA) is a minimally invasive bronchoscopic technique that is cost-effective and safe for diagnosing mediastinal and hilar adenopathy in lung cancer, other malignancies, sarcoidosis and infectious processes such as tuberculosis. Few studies have analysed the sensitivity, specificity and predictive values of TBNA for diagnosing lymphoma.</p><p>Objective. To evaluate the diagnostic yield of TBNA for diagnosing mediastinal and hilar adenopathy in suspected lymphoma.</p><p>Methods. We performed a retrospective analysis of collected data of patients with mediastinal and hilar adenopathy adjacent to the tracheobronchial tree detected by thoracic computed tomography, who underwent TBNA at Tygerberg Hospital between July 2010 and June 2013. We included 25 patients with suspected or proven lymphoma. Histology was used as the gold standard.</p><p>Results. Adequate samples for cytological evaluation were obtained for 22 (88%) patients. Cytological diagnosis was possible for 8 (32%). For 17 (68%) who could not be diagnosed by TBNA alone, histology provided final diagnosis. Rapid on-site examination (ROSE) was performed in 23 (92%). In 17/23 (74%) cases, these had similar results to formal cytology. Only 4 (16%) had flow cytometry requested. Twelve (48%) had lymphoma confirmed on histology. TBNA cytology had 100% specificity and positive predictive value for suspicion of lymphoma. Sensitivity was 33% and negative predictive value 62%.</p><p>Conclusion. TBNA is an appropriate first-line diagnostic procedure in evaluating mediastinal and hilar lymphadenopathy in suspected lymphoma. Biopsy should be the immediate second-line procedure when ROSE/cytology is suspicious of lymphoma or shows atypical cells. Patients with negative TBNA cytology, but high clinical or radiological suspicion of lymphoma, should be further investigated.</p>

scholarly journals Performance of the Xpert® MTB/RIF assay in the rapid diagnosis of tracheobronchial tuberculosis using bronchial washing fluid

2020 ◽  
Vol 48 (10) ◽  
pp. 030006052092164
Author(s):  
Yan-Hua Song ◽  
Qiang Li ◽  
Li-Ping Ma ◽  
Rong-Mei Liu ◽  
Guang-Lu Jiang ◽  
...  
Keyword(s):  
Pulmonary Disease ◽  
Predictive Value ◽  
Diagnostic Yield ◽  
Culture Method ◽  
Diagnostic Value ◽  
Acid Fast Bacillus ◽  
Diagnostic Methods ◽  
Bronchial Washing ◽  
Sensitivity Specificity ◽  
Higher Sensitivity

Objective To assess the diagnostic value of the Xpert® MTB/RIF (GeneXpert) assay for tracheobronchial tuberculosis (TBTB) using bronchial washing fluid (BWF). Methods This retrospective study enrolled patients suspected of having TBTB and patients with non-TB pulmonary disease as controls. BWF were used to undertake acid-fast bacillus (AFB) smears, the GeneXpert assay and the Lӧwenstein–Jensen (LJ) culture method. The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were compared among BWF AFB smears, BWF GeneXpert and the BWF LJ culture method. Results A total of 130 patients with TBTB and 102 patients with non-TB pulmonary disease were enrolled in the study. Sputum AFB smears were positive in 62 of 130 patients (47.7%) with TBTB. Using the clinical diagnosis of TBTB as the gold standard, the sensitivity, specificity, PPV and NPV of the three methods using BWF were as follows: 93.1%, 99.0%, 99.2% and 91.8% for BWF GeneXpert; 73.1%, 100.0%, 100.0% and 74.5% for BWF LJ cultures; 53.8%, 99.0%, 98.6% and 62.7% for BWF AFB smears. The diagnostic yield of BWF GeneXpert was significantly higher compared with BWF cultures for type III and IV TBTB. Conclusion The Xpert® MTB/RIF assay using BWF exhibited higher sensitivity than bacteriological diagnostic methods and was particularly useful for the early diagnosis of smear-negative TBTB.

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