scholarly journals Effective of antiviral therapy of HIV infection and intercurrent diseases in children

2017 ◽  
Vol 8 (1) ◽  
pp. 50-54
Author(s):  
Vladimir N Timchenko ◽  
Elena B Yastrebova ◽  
Oksana V Bulina

The study included 366 HIV-infected children (under-23) and 350 children with perinatal contact with HIV infection (R-75), consisting on the dispensary account in the Department of motherhood and childhood of the Saint Petersburg city AIDS center. The vast majority of children with perinatal HIV receive HAART (95.0%) with high efficacy (undetectable viral load, normalization of CD4 lymphocytes, the absence of clinical manifestations). In the structure of opportunistic viral infections (herpes, respiratory infections) 40.0%, bacterial (bronchitis, tonsillitis, pyoderma, pulmonary tuberculosis) - 28.6%, fungal infections (candidiasis mucous membranes of the oral cavity) and Pneumocystis pneumonia - 31.4%. Complex therapy (etiotropic, pathogenetic, symptomatic) acute respiratory viral infections in children with B-23 and R-75, allows us to achieve in the early stages (6 days treatment) of the regression of the main symptoms of acute respiratory diseases.

Respiratory symptoms are very common in HIV infection. This chapter describes respiratory presentations, chest X-ray appearances, their causes, and management, and covers specific respiratory infections related to HIV, including bacterial pneumonias, pneumocystis pneumonia, and pulmonary tuberculosis. It also covers other opportunistic infections, such as pulmonary viral and fungal infections.


Author(s):  
Cecilia Johansson ◽  
Freja C. M. Kirsebom

AbstractViral respiratory infections are a common cause of severe disease, especially in infants, people who are immunocompromised, and in the elderly. Neutrophils, an important innate immune cell, infiltrate the lungs rapidly after an inflammatory insult. The most well-characterized effector mechanisms by which neutrophils contribute to host defense are largely extracellular and the involvement of neutrophils in protection from numerous bacterial and fungal infections is well established. However, the role of neutrophils in responses to viruses, which replicate intracellularly, has been less studied. It remains unclear whether and, by which underlying immunological mechanisms, neutrophils contribute to viral control or confer protection against an intracellular pathogen. Furthermore, neutrophils need to be tightly regulated to avoid bystander damage to host tissues. This is especially relevant in the lung where damage to delicate alveolar structures can compromise gas exchange with life-threatening consequences. It is inherently less clear how neutrophils can contribute to host immunity to viruses without causing immunopathology and/or exacerbating disease severity. In this review, we summarize and discuss the current understanding of how neutrophils in the lung direct immune responses to viruses, control viral replication and spread, and cause pathology during respiratory viral infections.


Author(s):  
Е.Е. Краснова ◽  
В.В. Чемоданов ◽  
Е.Г. Кузнецова

Пневмония – острое инфекционно-воспалительное заболевание легких преимущественно бактериальной этиологии, характеризующееся выраженной в разной степени дыхательной недостаточностью, токсическими и респираторными нарушениями, локальными физикальными симптомами, а также инфильтративными изменениями на рентгенограмме. Заболеваемость внебольничными пневмониями повышается в октябре-декабре, достигая максимума в январе-апреле, коррелируя с сезонным повышением уровня острых респираторных вирусных инфекций. Схожесть симптомов дебюта пневмонии с проявлениями острых респираторных вирусных инфекций может привести к несвоевременной ее диагностике и, как следствие, к отсроченному началу лечения. Поэтому в период сезонной заболеваемости респираторными инфекциями должна повышаться настороженность врачей-педиатров в отношении внебольничной пневмонии. Антибактериальная терапия оказывает решающее влияние на прогноз пневмонии, поэтому при достоверном диагнозе или у больного в тяжелом состоянии с вероятным диагнозом ее следует начать незамедлительно. Выбор антибиотика в каждом случае внебольничной пневмонии проводят индивидуально с учетом природной активности препаратов в отношении предполагаемого возбудителя и их возможной приобретенной резистентности, тяжести и течения заболевания, наличия у пациента противопоказаний к использованию тех или иных антибиотиков. В статье приводятся сведения о диагностических критериях внебольничных пневмоний. Рассмотрены вопросы антибактериального лечения типичной нетяжелой пневмонии у детей разных возрастных групп амоксициллином с клавулановой кислотой и показана его эффективность. Результаты проведенного исследования позволяют заключить, что пероральное использование одного курса защищенного аминопенициллина эффективно при лечении типичной внебольничной нетяжелой пневмонии у детей разного возраста, о чем свидетельствует ликвидация основных клинических проявлений болезни в короткие сроки. Pneumonia is an acute infectious and inflammatory lung disease of predominantly bacterial etiology, characterized by respiratory failure, toxic and respiratory disorders, local physical symptoms, and infiltrative changes on the roentgenogram. The incidence of community-acquired pneumonia increases in October-December, reaching a maximum in January-April, correlating with the seasonal increase in the level of acute respiratory viral infections. The similarity of the symptoms of the onset of pneumonia with the manifestations of acute respiratory viral infections can lead to its untimely diagnosis and, as a consequence, to a delayed start of treatment. Therefore, during the period of seasonal morbidity with respiratory infections, the alertness of pediatricians in relation to community-acquired pneumonia should increase. Antibiotic therapy has a decisive influence on the prognosis of pneumonia, therefore, with a reliable diagnosis or in a patient in serious condition with a probable diagnosis, it should be started immediately. The choice of antibiotic in each case of community-acquired pneumonia is carried out individually, taking into account the natural activity of the drugs in relation to the alleged pathogen and their possible acquired resistance, the severity and course of the disease, the patient's contraindications to the use of certain antibiotics. The article provides information on the diagnostic criteria for community-acquired pneumonia. The issues of antibacterial treatment of typical non-severe pneumonia in children of different age groups with amoxicillin with clavulanic acid are considered and its effectiveness is shown. The results of the study allow us to conclude that the oral use of one course of protected aminopenicillin is effective in the treatment of typical community-acquired non-severe pneumonia in children of different ages, as evidenced by the elimination of the main clinical manifestations of the disease in a short time.


2020 ◽  
Author(s):  
Christin L Deal ◽  
Timothy J Thauland ◽  
Rebecca Signer ◽  
Stanley F Nelson ◽  
Hane Lee ◽  
...  

Viral respiratory infections are the most common childhood infection worldwide. However, even common pathogens can have significant consequences in the context of patients with primary immunodeficiency diseases. More than half or viral infections annually are due to rhinovirus/enterovirus strains. Most clinical manifestations of viral infection are mild. However 3% of cases result in hospitalization in patients who have no other known risk factors. These patients may have an inborn error of immunity, a genetic susceptibility to viral infections. Here we present the case of an adult male who suffered respiratory viral infections his whole life and developed chronic, inflammatory damage to sinuses and lungs as a consequence. Genomic sequencing identified compound heterozygous variants in the IFIH1 gene, encoding the protein Melanoma Differentiation Association Protein 5 (MDA5), a RIG-I-like cytoplasmic sensor of RNA intracellular infections. We show a dominant negative effect on these variants on the level of interferon-induced expression of MDA5 protein. This work supports that loss-of-function variants in IFIH1 affect the sensing of viral infections. Underlying genomic variants may dictate the point at which recurrent, respiratory viral infections leave commonplace experience and incur lasting damage.


Author(s):  
Binglei Zhang ◽  
Jian Zhou ◽  
Ruirui Gui ◽  
Zhen Li ◽  
Yingling Zu ◽  
...  

Central nervous system (CNS) complications can occur in 9%–15% of patients after allogeneic hematopoietic stem cell transplantation (allo-HSCT). The clinical manifestations of the CNS complications are non-specific, with most of them being disturbances of consciousness, convulsions, headaches, fever, and epilepsy, making it difficult to infer the cause of the complications based on clinical manifestations. We retrospectively analyzed the sensitivity and feasibility of metagenomic next generation sequencing (mNGS) in the diagnosis of CNS infections after allo-HSCT. Lumbar punctures were performed on 20 patients with CNS symptoms after receiving alternative donor HSCT(AD-HSCT) at the Affiliated Cancer Hospital of Zhengzhou University from February 2019 to December 2020, and their cerebrospinal fluid (CSF) was collected. The mNGS technique was used to detect pathogens in the CSF. Routine CSF testing, biochemical analyses, G experiments, GM experiments, ink staining, acid-fast staining, and bacterial cultures were carried out, and quantitative PCR (qPCR) tests were used to detect cytomegalovirus (CMV), Epstein-Barr virus (EBV), BK polyomavirus (BKPyV), and human alphaherpesvirus (HHV). A total of 29 tests were performed with 21 of them being positive. Of the five negative patients, three were diagnosed with a posterior reversible encephalopathy syndrome, one as having transplantation-associated thrombotic microangiopathy, and one with transient seizure caused by hypertension. Fifteen patients tested positive, of which four had single infections and eleven had mixed infections. Five cases of fungal infections, six cases of bacterial infections, and 13 cases of viral infections were detected. Among the 13 cases of viral infections, ten cases were CMV(HHV-5); three were BKPyV; two were Torque teno virus (TTV); Two were HHV-1,two were EBV(HHV4), and one each of HpyV5 and HHV-6B. Thirteen patients tested positive for virus while the qPCR detection method of 6 identical specimens were below the minimum detection limit(<1×103 U/ml). The mNGS technique is highly sensitive, and it can be used to diagnose CNS infections after allo-HSCT.


2020 ◽  
Vol 12 (1) ◽  
pp. 35-39
Author(s):  
M. Yu. Fomina ◽  
M. A. Titova

Currently, the leading cause of social disadaptations and disability of patients at advanced stages of HIV infection, as well as adverse outcomes, is the presence of severe comorbid variants of the course of HIV infection: HIV and co-infection of chronic viral hepatitis, tuberculosis, HIV and malignant tumors, and HIV-associated neurological diseases. In pediatric practice, the combination of HIV-induced and perinatal CNS lesions is the most relevant. The differential diagnosis of these conditions is complicated due to the polymorphism of clinical manifestations and the possibility of combining several pathological conditions simultaneously in patients. Neuroimaging data does not always have clear criteria for determining the exact cause of cerebral damage. The article presents data of own clinical neuroimaging observations of two patients with perinatal and parenteral HIV infection. The nervous system damage was polyetiological in nature and was presented in one case by a combination of HIV-encephalitis, cerebral toxoplasmosis and CNS lymphoma, in the second by the presence of Bourneville-Pringle disease (tuberous sclerosis) with the formation of giant-cell astrocytoma and HIV-induced brain damage. It should be noted that the optimization of the antiretroviral therapy regimen in the case of a combination of B-cell lymphoma and cerebral toxoplasmosis in a child with perinatal HIV infection led to clinical and laboratory remission


Author(s):  
Bhagyashri Jadhav ◽  
Neeta Patwardhan

Respiratory Viral infections predispose patients to various coinfections and this may lead to enhanced disease severity and mortality. Despite the proven importance of co-infections, these are understudied during the large outbreaks of respiratory infections. Occurrence of invasive fungal respiratory superinfections in patients with COVID-19 has gained increasing attention recently. This study aims to assess Clinical & Microbiological profile of patients with invasive sinusitis in setting of COVID-19 disease at our institute Study Design: A retrospective observational study. Study included patients diagnosed with acute invasive fungal rhinosinusitis (AIFR) suffering from or having a history of coronavirus disease infection over the period of three months.(April 21 – June 21). The patients’ presentation details, imaging findings, co-morbidities, management details, and follow-up information were obtained, recorded and analysed. A total of 32 patients with AIFR with a mean age of 54.46±13.13 years old were included. Most common associated disease was diabetes mellitus (62.5%). Mycological analysis revealed most common fungi isolated from these patients were Mucor species.(56.25%) followed by Aspergillus species(15.62%) while coinfection with both of these species was seen in 5 patients.(15.62%) Candida species was isolated from samples of 4 patients (12.5%). Radiological studies of nose and paranasal sinuses showed that ethmoid (62.5%) and maxillary (46.87%) sinuses being the most commonly affected sinuses followed by Frontal (31.25%) and sphenoid (21.87%) sinuses. Peri-orbital invasion was seen in 5 (15.62%) cases whereas intracranial involvement was seen in 1 patient.(3.12%) In 8 (25%) patients only medical line of treatment was sufficient whereas 20 (62.5%) patients required surgical debridement during the treatment. 4 patients were lost to follow up. Overall survival was 90.62% (29/32) at the conclusion of the study. We are still learning the new and long-term complications of COVID- 19.The puzzle still remains unsolved about the cause and increased prevalence of invasive fungal infections in post-covid-19 population. High clinical suspicion and early and accurate diagnosis of AIFR in COVID-19 patients are essential for better prognosis.


2019 ◽  
Vol 1 (1) ◽  
pp. 43-49 ◽  
Author(s):  
N. B. Egorova ◽  
E. A. Kurbatova ◽  
N. K. Akhmatova ◽  
I. M. Gruber

Aim. Analysis of experimental data and results of long-term clinical studies of immunotherapeutic and prophylactic effectiveness of a polycomponent vaccine, Immunovac-VP-4. Materials and methods. Immunogenic strains of Staphylococcus aureus, Klebsiella pneumoniae, Proteus vulgaris, Escherichia coli, which antigens possessed broad intra — and interspecific cross-protective activity were selected to obtain the vaccine. Immunological parameters were determined using flow cytometry with the use of diagnostic monoclonal antibodies to cytokines, Toll-like receptors, surface molecules of dendritic cells and lymphocytes. The clinical effect of Immunovac-VP-4 was evaluated in chronic inflammatory and allergic diseases, as well as in the prevention of acute respiratory diseases (ARI) in children’s organized groups. Results. Immunovac-VP-4, protected the mice from infection caused by etiologically significant strains of bacteria and viruses, increased TLR-2, 4, 9-expressing cells; maturing the dendritic cells; the synthesis of cytokines IL1β, IL-6, IL-10, IL-12, IFNγ,; proliferation and increased cytotoxicity of NK cells. Significant clinical effect (69.2 — 100)% of Immunovac-VP-4 on the background of the basic therapy was obtained in patients with chronic inflammatory and allergic diseases. The therapeutic effect was accompanied by a positive dynamics of immunological parameters, in particular, an increase in IFNγ and a decrease in IL-4. Immunotherapy and immunoprophylaxis using Immunovac-VP-4 led to a decrease in the number of episodes of acute respiratory infections and their bacterial complications, including children in organized groups. Conclusion. Immunological feasibility of using Immunovac-VP-4 in complex treatment and prevention of bacterial and viral infections, caused by opportunistic microorganisms, as well as in allergic diseases was proved. 


2016 ◽  
Vol 15 (1) ◽  
pp. 24-29 ◽  
Author(s):  
V. N. Timchenko ◽  
E. B. Yastrebova ◽  
O. V. Bulina

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