28 results on '"Venkatakrishna S"'
Search Results
2. Abstract No. 279 Retrospective Review of Non-Infectious Port Complications Leading to Port Removal
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Zandifar, A., primary, Frost, B., additional, Wakim, J., additional, Venkatakrishna, S., additional, Tierradentro-Garcia, L., additional, Becsey, X., additional, Pavuluri, S., additional, Nadolski, G., additional, Gade, T., additional, Trerotola, S., additional, Vossough, A., additional, and Hunt, S., additional
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- 2023
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3. Magnetic resonance imaging diagnosis of causes of cerebral palsy in a developing country: A database of South African children
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Elsingergy, M M, Worede, F, Venkatakrishna, S, Curic, J, and Andronikou, S
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Background. Cerebral palsy (CP) is a common worldwide disabling disorder. However, data about prevalence and causes of CP in developing countries are deficient because of high cost and limited availability of magnetic resonance imaging (MRI), the gold standard neuro-imaging modality for evaluation and management of CP in neonates. Objectives. To determine the frequency of CP causes in children with suspected hypoxic ischaemic injury (HII) involved in medicolegal litigation in South Africa based on MRI report findings. Methods. A total of 1 620 MRI reports were categorised into HII, non-HII and normal MRI. None of the patients had prior neuro-imaging records. HII reports were sub-classified according to pattern of brain injury into basal ganglia-thalamus (BGT), watershed (WS), combined BGT-WS, periventricular leukomalacia (PVL) and multicystic encephalomalacia. Non-HII diagnoses were sub-classified into strokes, congenital malformations, kernicterus, hydrocephalus, haemorrhages, atrophies, metabolic causes and infections. Results. The median age was 6 years. HII reports (n=1 233; 76.1%) showed BGT in 447 (27.6%), WS in 266 (16.4%), combined BGT-WS in 335 (20.7%), PVL in 58 (3.6%) and multicystic in 127 (7.8%). Non-HII diagnoses (n=255; 15.7%) showed 78 (4.8%) congenital malformations, 50 (3.1%) atrophies, 35 (2.1%) kernicterus, 23 (1.4%) strokes, 12 (0.8%) haemorrhages, 14 (0.9%) hydrocephalus, 36 (2.1%) metabolic and 7 (0.5%) infections. Normal exams were 132 (8.2%). Conclusions. Despite being performed a relatively long time – median of 6 years – after the suspected perinatal HII, MRI yielded a diagnosis in 92% and showed that only 76% were due to HII, and more importantly, that there was a preterm HII pattern of injury in 15%, which when added to the 16% of non-HII cases, could potentially save on litigation in a total of 31% of cases that are unlikely to be related to malpractice. MRI should be performed wherever possible in CP cases, even if no imaging exam was performed in the perinatal period.
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- 2022
4. Deep nuclei injury distribution in isolated “basal ganglia–thalamus” (BGT) versus combined “BGT and watershed” patterns of hypoxic–ischaemic injury (HII) in children with cerebral palsy
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Elsingergy, M.M., primary, Worede, F., additional, Venkatakrishna, S., additional, and Andronikou, S., additional
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- 2022
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5. Blood Indices Replace Upper Gastrointestinal Endoscopy for the Prediction of Clinically Significant Esophageal Varices in Liver Cirrhosis
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Venkatakrishna Sankapithlu, Gnanendra Mariyanna, Kiran Shankar, Sanjay Kumar Hassan Raghunath, and Kavya Seenahalli Thimmaiah
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aar ,apri ,fib-4 ,oesophageal varices ,platelet count ,Medicine ,Dentistry ,RK1-715 - Abstract
Background and aim: Anticipating the existence of esophageal varices (EVs) by non-intrusive methods in cirrhotic may build consistency and limit the presentation of upper gastrointestinal endoscopy (UGIE) to those individuals with a high likelihood of having EVs. Prophecy of EVs utilizing simple blood indices and also for estimation of clinically important large esophageal varices (LEVs).Materials and methods: A cross-sectional experimental examination was done on 107 cirrhotic enlisted sequentially. Platelet count (PC), the ratio of aspartate aminotransferase to alanine aminotransferase (the AST/ALT ratio or AAR), AST-platelet-ratio index (APRI), Fib-4, and King's Score were determined and linked with UGIE discoveries taken as the best quality level. The execution manifested affectability, particularity, positive and negative prescient values (PPV, NPV), and area under the curve (AUC).Results: Middle age 44 years, male (90%), and etiology-ethanol (87%). 60/107 had LEVs. For anticipating LEVs, PC at cutoff esteem < 1.5 lakhs c/mm3 exhibited affectability 66.7%; particularity 44.7%, PPV 60.6%, NPV 51.2%, and AUC 0.621. AAR for estimation of LEVs at cutoff esteem 1, showed affectability 93.3%, particularity 42.1%, PPV 54.9%, NPV 20% and AUC 0.638. Lie 4 for expectation of LEVs at cutoff esteem 3.5, showed affectability 80%, and particularity 31.9%, PPV 60%, NPV 55.6% and AUC 0.614.Conclusion: PC, AAR, and FIB-4 had simple demonstrative precision for LEVs in cirrhosis. They recognized the subcategory that requires UGIE for the preventive administration of EVs. Generally, basic blood lists probably will not have the option to substitute the efficacy of UGIE for the finding of EVs in cirrhosis.
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- 2021
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6. Magnetic resonance imaging diagnosis of causes of cerebral palsy in a developing country: A database of South African children.
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Elsingergy, M. M., Worede, F., Venkatakrishna, S., Curie, J., and Andronikou, S.
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- 2021
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7. Factors in enhancing blood safety by nucleic acid technology testing for human immunodeficiency virus, hepatitis C virus and hepatitis B virus
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Venkatakrishna Shyamala
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Donor look back ,individual donation nucleic acid technology testing ,multi pool nucleic acid technology testing ,recipient trace back ,transfusion transmitted viral infections ,window period and occult infections ,Diseases of the blood and blood-forming organs ,RC633-647.5 - Abstract
In the last few decades through an awareness of transfusion transmitted infections (TTI), a majority of countries have mandated serology based blood screening assays for Human immunodeficiency virus (HIV), Hepatitis C virus (HCV), and Hepatitis B virus (HBV). However, despite improved serology assays, the transfusion transmission of HIV, HCV, and HBV continues, primarily due to release of serology negative units that are infectious because of the window period (WP) and occult HBV infections (OBI). Effective mode of nucleic acid technology (NAT) testing of the viruses can be used to minimize the risk of TTIs. This review compiles the examples of NAT testing failures for all three viruses; analyzes the causes for failure, and the suggestions from retrospective studies to minimize such failures. The results suggest the safest path to be individual donation testing (ID) format for highest sensitivity, and detection of multiple regions for rapidly mutating and recombining viruses. The role of blood screening in the context of the donation and transfusion practices in India, the donor population, and the epidemiology is also discussed. World wide, as the public awareness of TTIs increases, as the recipient rights for safe blood are legally upheld, as the possibility to manage diseases such as hepatitis through expensive and prolonged treatment becomes accessible, and the societal responsibility to shoulder the health costs as in the case for HIV becomes routine, there is much to gain by preventing infections than treating diseases.
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- 2014
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8. Individual donation nucleic acid technology testing to minimize human immunodeficiency virus-1, hepatitis C virus, and hepatitis B virus transfusion transmitted infections
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Venkatakrishna Shyamala, Taylor G Sandison, and Jerry A Holmberg
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Diseases of the blood and blood-forming organs ,RC633-647.5 - Published
- 2014
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9. PTB airway compression complicated by vascular abnormalities and cardiac involvement: A case series demonstrating diagnosis and management.
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Goussard P, Eber E, Janson J, Gie AG, Fourie B, Jacobs CM, Venkatakrishna SSB, Andronikou S, Van der Westhuizen S, Schubert P, Burger C, Verster J, Ebert L, and Deininger-Czermak E
- Abstract
Introduction: Lymphobronchial tuberculosis (LBTB) is a tuberculous lymphadenopathy causing airway compression in young children. While it can occur in older children due to factors such as airway size, wall weakness, and immune reconstitutions, severe airway obstruction is more common in younger children., Methods: Chest X-rays show airway compression, while bronchoscopy is the gold standard for confirming TB-induced airway compression. Previous research has demonstrated that drug resistance and HIV have no effect on the outcome of children with significant airway compression caused by TB., Results: This case series describes the management and outcome of three young children who had simultaneous vascular abnormalities and airway obstruction due to pulmonary tuberculosis (PTB). Concomitant PTB and vascular abnormalities are uncommon, even in high-TB-intensity areas, and affected children may present differently and require individualised treatment., Conclusions: Advanced imaging is critical for detecting complicated cases of airway compression due to PTB in young children, as vascular abnormalities are uncommon. Fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (F-18 FDG PET/CT) may show metabolically active intracardiac lesions. Individualised management plans are required for these children, and echocardiography is critical for patients with disseminated disease., (© 2024 Wiley Periodicals LLC.)
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- 2024
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10. Severe airway obstruction due to pulmonary tuberculosis in a premature infant needing decompression of mediastinal lymph nodes.
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Goussard P, van Wyk L, Gie A, Jacobs C, Patel SA, Venkatakrishna S, Andronikou S, Ebert L, Verster J, Walzl G, Adebiyi OS, Schubert P, and Janson J
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- 2024
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11. Respiratory infections in low and middle-income countries.
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Frigati L, Greybe L, Andronikou S, Eber E, Sunder B Venkatakrishna S, and Goussard P
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Objectives: To investigate the epidemiology, aetiology, diagnostics and management of childhood pneumonia in low and middle income countries (LMICs)., Design: Review of published english literature from 2019 to February 2024., Results: Lower respiratory tract infections (LRTIs) still result in significant mortality in children under 5 years of age in LMICs. Important studies have reported a change in the pathogenesis of LRTIs over the last 5 years with respiratory syncytial virus (RSV) resulting in a large burden of disease. SARS-CoV-2 had a significant direct and indirect impact in children in LMICs. Mycobacterium tuberculosis (MTB) remains a priority pathogen in all children. Nucleic acid amplification and rapid antigen tests have improved diagnostic accuracy for MTB and other bacterial pathogens. Point of care diagnostics may overcome some limitations, but there is a need for better cost-effective diagnostics. Access to shorter courses of TB treatment are now recommended for some children, but child friendly formulations are lacking. The role of chest X-ray in TB has been recognized and included in guidelines, and lung ultrasound to diagnose LRTI is showing promise as a lower cost and accessible option., Conclusion: Advances in diagnostics and large multi-centre studies have provided increased understanding of the causative pathogens of LRTIs in LMICs. Increased access to preventive strategies such as vaccines, treatment modalities including antivirals, and addressing upstream factors such as poverty are essential if further declines in LRTIs in LMICs are to be realised., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
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- 2024
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12. SARS-CoV-2 coinfection in children with severe airway obstruction due to pulmonary tuberculosis.
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Goussard P, Van Wyk L, Venkatakrishna S, Rabie H, Schubert P, Frigati L, Walzl G, Burger C, Doruyter A, Andronikou S, Gie AG, Rhode D, Jacobs C, and Van der Zalm M
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Introduction: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic had a significant impact on tuberculosis (TB) control globally, with the number of new TB diagnoses decreasing. Coinfection with some viruses, especially measles, could aggravate TB in children. This is presumably a result of depressed cellular immunity. Reports on children with TB and SARS-CoV-2 coinfection are limited., Methods: A retrospective analysis of children up to 13 years old admitted to Tygerberg Hospital, Cape Town, South Africa, from March 2020 to December 2022 with suspected TB-induced airway compression requiring bronchoscopy. Children were included if they presented with severe intrathoracic airway obstruction and/or radiographic evidence of complicated TB. The patients were divided into two groups based on SARS-CoV-2 respiratory polymerase chain reaction results. Demographics, TB exposure, microbiology, SARS-CoV-2 laboratory data, imaging, inflammatory cytokine levels, and bronchoscopy data were collected. Statistical analyses compared SARS-CoV-2 positive and negative groups., Results: Of the 50 children undergoing bronchoscopy for TB airway obstruction, 7 (14%) were SARS-CoV-2 positive. Cough was more prevalent in the SARS-CoV-2 positive group (p = 0.04). There was no difference in TB culture yield between groups. However, SARS-CoV-2 positive children showed slower radiological improvement at 1 month (p = 0.01), pleural effusions (p < 0.001), and a higher need for endoscopic enucleation (p < 0.001). FDG PET/CT scans indicated an ongoing inflammation in the SARS-CoV-2 positive group., Conclusions: Coinfection with SARS-CoV-2 in children with TB airway obstruction appears to complicate the disease course, necessitating more medical interventions and demonstrating a longer duration of the TB inflammatory process. Further research is needed to understand the impact of viral infections on TB progression and outcomes in pediatric patients., (© 2024 The Author(s). Pediatric Pulmonology published by Wiley Periodicals LLC.)
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- 2024
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13. Mucoepidermoid bronchial tumor in a child masquerading as tuberculosis.
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Goussard P, Gie A, Venkatakrishna S, Andronikou S, Ebert L, Verster J, Schubert PT, Opperman J, and Janson J
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- Humans, Diagnosis, Differential, Child, Male, Bronchoscopy, Tuberculosis, Pulmonary diagnosis, Carcinoma, Mucoepidermoid diagnosis, Carcinoma, Mucoepidermoid diagnostic imaging, Carcinoma, Mucoepidermoid surgery, Tomography, X-Ray Computed, Female, Tuberculosis diagnosis, Bronchial Neoplasms diagnosis, Bronchial Neoplasms diagnostic imaging
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- 2024
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14. Frequency and classification of addenda in paediatric neuroradiological reports as part of quality assurance.
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Venkatakrishna SSB, Ghosh A, Sharma P, Miranda-Schaeubinger M, Prakash AV, Addisu L, Sze RW, and Andronikou S
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- Humans, Child, Diagnostic Errors, Research Report, Retrospective Studies, Magnetic Resonance Imaging, Radiology
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Aim: To determine the frequency and classification of addenda seen in paediatric brain magnetic resonance imaging (MRI) reports., Materials and Methods: A retrospective review of the addenda of brain MRI reports from a large tertiary children's hospital was undertaken between January 2013 to December 2021 and a subset of above radiology reports was used to classify addenda over 6-month periods, October to March, spanning 2018 to 2021. A radiology fellow and a medical doctor classified the addenda into previously published categories using their best judgement., Results: Out of 73,643 brain MRI reports over 9 years (108 months) included in the study, only 923 reports (1.25%) had addenda. There was a total of 13,615 brain MRI reports from 6-month periods, of which only 179 reports (1.31%) had an addendum. The number of errors according to categories were: observational 88/13,615 (0.65%); interpretational 16/13,615 (0.12%); non-observational and non-interpretative 82/13,615 (0.6%). Notifications to referring physician made in 29/13,615 (0.21%)., Conclusions: The overall proportion of addenda to the brain MRI reports of children in the present study was low, at 1.25%. Categorisation of different addenda revealed the most common errors to be observational in 0.65%, including under-reading in the region of interest in 0.25%. Appropriate measures can now be introduced to minimise the error-based addenda further and improve MRI diagnosis in children. Other paediatric practices may choose to follow suit in evaluating their addenda and errors to improve practice., (Copyright © 2024 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.)
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- 2024
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15. Bronchoscopy findings in children with congenital lung and lower airway abnormalities.
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Goussard P, Eber E, Venkatakrishna S, Janson J, Schubert P, and Andronikou S
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- Child, Humans, Bronchoscopy, Lung diagnostic imaging, Airway Obstruction, Heart Defects, Congenital complications, Respiratory Tract Diseases complications, Pneumonia complications
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Congenital lung and lower airway abnormalities are rare, but they are an important differential diagnosis in children with respiratory diseases, especially if the disease is recurrent or does not resolve. The factors determining the time of presentation of congenital airway pathologies include the severity of narrowing, association with other lesions and the presence or absence of congenital heart disease (CHD). Bronchoscopy is required in these cases to assess the airway early after birth or when intubation and ventilation are difficult or not possible. Many of these conditions have associated abnormalities that must be diagnosed early, as this determines surgical interventions. It may be necessary to combine imaging and bronchoscopy findings in these children to determine the correct diagnosis as well as in operative management. Endoscopic interventional procedures may be needed in many of these conditions, ranging from intubation to balloon dilatations and aortopexy. This review will describe the bronchoscopic findings in children with congenital lung and lower airway abnormalities, illustrate how bronchoscopy can be used for diagnosis and highlight the role of interventional bronchoscopy in the management of these conditions., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
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- 2024
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16. A comparison of chest radiographic findings in human immunodeficiency virus-positive and -negative children with pulmonary tuberculosis.
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Buthelezi TE, Venkatakrishna SSB, Lucas S, Workman L, Dheda K, Nicol MP, Zar HJ, and Andronikou S
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- Child, Humans, Infant, Child, Preschool, Retrospective Studies, Sputum, HIV, Tuberculosis, Pulmonary complications, Tuberculosis, Pulmonary diagnostic imaging, HIV Infections complications, HIV Infections diagnostic imaging
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Aim: To compare chest radiography (CXR) findings in human immunodeficiency virus (HIV)-positive and HIV-negative children who had microbiologically confirmed pulmonary tuberculosis (PTB)., Materials and Methods: Retrospective analysis of CXRs from children with known HIV status and microbiologically confirmed PTB (culture or GeneXpert Xpert MTB/RIF positive), who were hospitalised or seen at a primary healthcare centre over a 5-year period. Radiological findings were compared according to HIV and nutritional status., Results: CXRs of 130 children were analysed from 35 (27%) HIV- positive and 95 (73%) HIV-negative children with confirmed PTB, median age 45.7 months (interquartile range [IQR] 18-81.3 months). CXR changes consistent with PTB were reported in 21/35 (60%) of HIV-positive and 59/95 (62%) of HIV-negative patients, (p=0.81). Normal CXR was identified in 3/35 (8.6%) of HIV-positive and 5/95 (5.3%) of HIV-negative patients (p=0.81). Airway compression was present in 3/35 (8.6%) of HIV-positive and 7/95 (7.4%) of HIV-negative patients (p>0.99). Overall, lymphadenopathy was identified in 42/130 (32.3%) of patients, 11/35 (31.4 %) were HIV-positive compared with 31/95 (32.6%) HIV-negative patients. Airspace consolidation was present in 60% of both HIV-positive (21/35) and HIV-negative patients (57/95). Pleural effusion was present in 2/35 (5.7 %) of HIV-negative and 9/95 (9.5 %) of HIV-negative patients. There were no statistically significant radiological differences by HIV group., Conclusion: There were no significant differences in the CXR findings between the HIV-positive and HIV-negative children with confirmed PTB., (Copyright © 2023. Published by Elsevier Ltd.)
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- 2024
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17. Removal of bronchial foreign body in a ventilated preterm infant with flexible bronchoscopy.
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Goussard P, van Wyk L, Venkatakrishna S, Andronikou S, Myburgh C, and Gie A
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- Infant, Humans, Infant, Newborn, Bronchoscopy, Infant, Premature, Bronchi diagnostic imaging, Trachea, Bronchial Diseases, Foreign Bodies diagnostic imaging, Foreign Bodies surgery
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- 2024
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18. Interventional bronchoscopy in pediatric pulmonary tuberculosis.
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Goussard P, Eber E, Venkatakrishna S, Frigati L, Greybe L, Janson J, Schubert P, and Andronikou S
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- Adult, Child, Humans, Bronchoscopy adverse effects, Bronchoscopy methods, Sensitivity and Specificity, Sputum, Mycobacterium tuberculosis, Tuberculosis, Pulmonary diagnosis, Tuberculosis, Pulmonary therapy, Tuberculosis, Lymphadenopathy
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Introduction: Lymphobronchial tuberculosis (TB) is common in children with primary TB and enlarged lymph nodes can cause airway compression of the large airways. If not treated correctly, airway compression can result in persistent and permanent parenchymal pathology, as well as irreversible lung destruction. Bronchoscopy was originally used to collect diagnostic samples; however, its role has evolved, and it is now used as an interventional tool in the diagnosis and management of complicated airway disease. Endoscopic treatment guidelines for children with TB are scarce., Areas Covered: The role of interventional bronchoscopy in the diagnosis and management of complicated pulmonary TB will be discussed. This review will provide practical insights into how and when to perform interventional procedures in children with complicated TB for both diagnostic and therapeutic purposes. This discussion incorporates current scientific evidence and refers to adult literature, as some of the interventions have only been done in adults but may have a role in children. Limitations and future perspectives will be examined., Expert Opinion: Pediatric pulmonary TB lends itself to endoscopic interventions as it is a disease with a good outcome if treated correctly. However, interventions must be limited to safeguard the parenchyma and prevent permanent damage.
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- 2023
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19. Double aortic arch with an aberrant left superior pulmonary vein in a young child presenting with pneumomediastinum.
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Goussard P, van der Westhuizen S, Fourie B, Venkatakrishna S, Andronikou S, Ebert L, Weijts D, Verster J, Rhode D, Gie A, and Janson J
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- Humans, Aorta, Thoracic diagnostic imaging, Tomography, X-Ray Computed, Infant, Mediastinal Emphysema diagnostic imaging, Mediastinal Emphysema etiology, Pulmonary Veins diagnostic imaging, Vascular Ring
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- 2023
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20. Automating Angle Measurements on Foot Radiographs in Young Children: Feasibility and Performance of a Convolutional Neural Network Model.
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Patton D, Ghosh A, Farkas A, Sotardi S, Francavilla M, Venkatakrishna S, Bose S, Ouyang M, Huang H, Davidson R, Sze R, and Nguyen J
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- Humans, Child, Child, Preschool, Retrospective Studies, Feasibility Studies, Neural Networks, Computer, Foot diagnostic imaging, Metatarsal Bones diagnostic imaging
- Abstract
Measurement of angles on foot radiographs is an important step in the evaluation of malalignment. The objective is to develop a CNN model to measure angles on radiographs, using radiologists' measurements as the reference standard. This IRB-approved retrospective study included 450 radiographs from 216 patients (< 3 years of age). Angles were automatically measured by means of image segmentation followed by angle calculation, according to Simon's approach for measuring pediatric foot angles. A multiclass U-Net model with a ResNet-34 backbone was used for segmentation. Two pediatric radiologists independently measured anteroposterior and lateral talocalcaneal and talo-1
st metatarsal angles using the test dataset and recorded the time used for each study. Intraclass correlation coefficients (ICC) were used to compare angle and paired Wilcoxon signed-rank test to compare time between radiologists and the CNN model. There was high spatial overlap between manual and CNN-based automatic segmentations with dice coefficients ranging between 0.81 (lateral 1st metatarsal) and 0.94 (lateral calcaneus). Agreement was higher for angles on the lateral view when compared to the AP view, between radiologists (ICC: 0.93-0.95, 0.85-0.92, respectively) and between radiologists' mean and CNN calculated (ICC: 0.71-0.73, 0.41-0.52, respectively). Automated angle calculation was significantly faster when compared to radiologists' manual measurements (3 ± 2 vs 114 ± 24 s, respectively; P < 0.001). A CNN model can selectively segment immature ossification centers and automatically calculate angles with a high spatial overlap and moderate to substantial agreement when compared to manual methods, and 39 times faster., (© 2023. The Author(s) under exclusive licence to Society for Imaging Informatics in Medicine.)- Published
- 2023
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21. Comparison of single coronal thick-slab minimum intensity projection with flexible bronchoscopy for airway compression in children with lymphobronchial tuberculosis.
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Venkatakrishna SSB, Krim AOA, Calle-Toro J, Lucas S, Bester D, Goussard P, and Andronikou S
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- Male, Female, Humans, Child, Constriction, Pathologic diagnostic imaging, Tomography, X-Ray Computed methods, Bronchi diagnostic imaging, Bronchoscopy methods, Tuberculosis
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Aim: To generate standardised coronal minimum intensity projection (MinIP) computed tomography (CT) reconstructions, and compare these with flexible bronchoscopy in children with lymphobronchial tuberculosis (LBTB)., Materials and Methods: Standardised coronal MinIP reconstructions were performed from CT images in children with LBTB and the findings of three readers were compared with the reference standard, flexible bronchoscopy (FB), regarding airway narrowing. Intraluminal lesions, the site of the stenosis, and the degree of stenosis were also evaluated. The length of stenosis was evaluated by CT MinIP only., Results: Sixty-five children (38 males; 58.5% and 27 females; 41.5%), with ages ranging from 2.5 to 144 months were evaluated. Coronal CT MinIP demonstrated a sensitivity of 96% and specificity of 89% against FB. The most common site of stenosis was the bronchus intermedius (91%), followed by the left main bronchus (85%), the right upper lobe bronchus RUL (66%), and the trachea (60%)., Conclusion: Coronal CT MinIP reconstruction is useful in demonstrating airway stenosis in children with lymphobronchial TB, with high sensitivity and specificity. CT MinIP had additional advantages over FB in that it allowed objective measurement of the diameter of stenosis, measurement of the length of stenosis, and evaluation of post-stenotic segments of the airways and lung parenchymal abnormalities., (Copyright © 2023. Published by Elsevier Ltd.)
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- 2023
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22. Chronic lung disease in children due to SARS-CoV-2 pneumonia: Case series.
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Goussard P, Venkatakrishna S, Frigati L, Janson J, Schubert P, Verster J, Gie AG, Myburgh C, Parker N, Du Plooy E, Rhode D, Bekker C, Andronikou S, Rabie H, and van der Zalm MM
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- Infant, Adult, Adolescent, Humans, Child, Lung diagnostic imaging, Polymerase Chain Reaction, Hospitalization, SARS-CoV-2, COVID-19 complications
- Abstract
The reported prevalence of chronic lung disease (CLD) due to coronavirus 2 (severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2)]) pneumonia with the severe acute respiratory syndrome in children is unknown and rarely reported in English literature. In contrast to most other respiratory viruses, children generally have less severe symptoms when infected with SARS-CoV-2. Although only a minority of children with SARS-CoV-2 infection require hospitalization, severe cases have been reported. More severe SARS-CoV-2 respiratory disease in infants has been reported in low- and middle-income countries (LMICs) compared to high-income countries (HICs). We describe our experience of five cases of CLD in children due to SARS-CoV-2 collected between April 2020 and August 2022. We included children who had a history of a positive SARS-CoV-2 polymerase chain reaction (PCR) or antigen test or a positive antibody test in the serum. Three patterns of CLD related to SARS-CoV-2 were identified: (1) CLD in infants postventilation for severe pneumonia (n = 3); (2) small airway disease with bronchiolitis obliterans picture (n = 1) and (3) adolescent with adult-like post-SARS-CoV-2 disease (n = 1). Chest computerized tomography scans showed airspace disease and ground-glass opacities involving both lungs with the development of coarse interstitial markings seen in four patients, reflecting the long-term fibrotic consequences of diffuse alveolar damage that occur in children post-SARS-CoV-2 infection. Children with SARS-CoV-2 infection mostly have mild symptoms with little to no long-term sequelae, but the severe long-term respiratory disease can develop., (© 2023 The Authors. Pediatric Pulmonology published by Wiley Periodicals LLC.)
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- 2023
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23. Foregut duplication cyst presenting at birth with airway compression.
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Goussard P, van der Westhuizen S, Venkatakrishna S, Andronikou S, van Wyk L, Rhode D, Gie A, Janson J, Schubert P, Geerts L, and Budhram S
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- Infant, Newborn, Humans, Respiratory System, Thorax, Cysts complications, Cysts diagnostic imaging, Cysts surgery, Bronchogenic Cyst
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- 2023
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24. Tuberculosis of the trachea in a child: Value of 3D segmentation.
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Goussard P, Verster J, Ebert L, Venkatakrishna S, Gie A, Rhode D, and Andronikou S
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- Humans, Child, Bronchi, Bronchoscopy, Trachea diagnostic imaging, Tuberculosis diagnostic imaging, Tuberculosis drug therapy
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- 2023
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25. Complicated intrathoracic tuberculosis: Role of therapeutic interventional bronchoscopy.
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Goussard P, Eber E, Venkatakrishna S, Frigati L, Janson J, Schubert P, and Andronikou S
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- Humans, Child, Bronchoscopy, Sputum, Mycobacterium tuberculosis, Tuberculosis, Tuberculosis, Pulmonary
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In recent years bronchoscopy equipment has been improved with smaller instruments and larger size working channels. This has ensured that bronchoscopy offers both therapeutic and interventional options. As the experience of paediatric interventional pulmonologists continues to grow, more interventions are being performed. There is a scarcity of published evidence in the field of interventional bronchoscopy in paediatrics. This is even more relevant for complicated pulmonary tuberculosis (PTB). Therapeutic interventional bronchoscopy procedures can be used in the management of complicated tuberculosis, including for endoscopic enucleations, closure of fistulas, dilatations of bronchial stenosis and severe haemoptysis. Endoscopic therapeutic procedures in children with complicated TB may prevent thoracotomy. If done carefully these interventional procedures have a low complication rate., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
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- 2023
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26. Intrathoracic tuberculosis: Role of interventional bronchoscopy in diagnosis.
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Goussard P, Eber E, Venkatakrishna S, Frigati L, Janson J, Schubert P, and Andronikou S
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- Child, Humans, Severity of Illness Index, Bronchoscopy methods, Tuberculosis, Pulmonary diagnosis
- Abstract
Tuberculosis (TB) is the leading cause of death from a single infectious agent globally. Mortality is related to the delay in diagnosis and starting treatment. According to new guidelines it is very important to classify pulmonary tuberculosis (PTB) as severe or not severe disease due to the difference in treatment duration. Bronchoscopy is the gold standard for assessing the degree of airway compression and obstruction in paediatric PTB. Paediatric bronchoscopy has evolved from a primarily diagnostic procedure to include interventional bronchoscopy for diagnostic purposes. Endobronchial ultrasound (EBUS) has increased the potential of sampling mediastinal lymph nodes both for histological diagnosis and microbiological confirmation., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
27. Magnetic resonance imaging diagnosis of causes of cerebral palsy in a developing country: A database of South African children.
- Author
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Elsingergy MM, Worede F, Venkatakrishna S, Curic J, and Andronikou S
- Subjects
- Child, Databases, Factual, Developing Countries, Female, Humans, Male, South Africa epidemiology, Cerebral Palsy diagnostic imaging, Cerebral Palsy etiology, Magnetic Resonance Imaging
- Abstract
Background: Cerebral palsy (CP) is a common worldwide disabling disorder. However, data about prevalence and causes of CP in developing countries are deficient because of high cost and limited availability of magnetic resonance imaging (MRI), the gold standard neuro-imaging modality for evaluation and management of CP in neonates., Objectives: To determine the frequency of CP causes in children with suspected hypoxic ischaemic injury (HII) involved in medicolegal litigation in South Africa based on MRI report findings., Methods: A total of 1 620 MRI reports were categorised into HII, non-HII and normal MRI. None of the patients had prior neuro-imaging records. HII reports were sub-classified according to pattern of brain injury into basal ganglia-thalamus (BGT), watershed (WS), combined BGT-WS, periventricular leukomalacia (PVL) and multicystic encephalomalacia. Non-HII diagnoses were sub-classified into strokes, congenital malformations, kernicterus, hydrocephalus, haemorrhages, atrophies, metabolic causes and infections., Results: The median age was 6 years. HII reports (n=1 233; 76.1%) showed BGT in 447 (27.6%), WS in 266 (16.4%), combined BGT-WS in 335 (20.7%), PVL in 58 (3.6%) and multicystic in 127 (7.8%). Non-HII diagnoses (n=255; 15.7%) showed 78 (4.8%) congenital malformations, 50 (3.1%) atrophies, 35 (2.1%) kernicterus, 23 (1.4%) strokes, 12 (0.8%) haemorrhages, 14 (0.9%) hydrocephalus, 36 (2.1%) metabolic and 7 (0.5%) infections. Normal exams were 132 (8.2%)., Conclusions: Despite being performed a relatively long time - median of 6 years - after the suspected perinatal HII, MRI yielded a diagnosis in 92% and showed that only 76% were due to HII, and more importantly, that there was a preterm HII pattern of injury in 15%, which when added to the 16% of non-HII cases, could potentially save on litigation in a total of 31% of cases that are unlikely to be related to malpractice. MRI should be performed wherever possible in CP cases, even if no imaging exam was performed in the perinatal period.
- Published
- 2021
28. Sequence variation in hepatitis C viral isolates.
- Author
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Weiner AJ, Christopherson C, Hall JE, Bonino F, Saracco G, Brunetto MR, Crawford K, Marion CD, Crawford KA, and Venkatakrishna S
- Subjects
- Amino Acid Sequence, Capsid genetics, Hepacivirus isolation & purification, Humans, Molecular Sequence Data, Viral Core Proteins genetics, Genome, Viral, Hepacivirus genetics, Viral Proteins genetics
- Published
- 1991
- Full Text
- View/download PDF
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