Efficacy of human interleukin-11 analogs for treating dengue fever-associated thrombocytopenia: a prospective cohort.

AIM: Dengue fever (DF), carried by Aedes mosquitoes, affects millions worldwide. Platelet-inducing human IL-11 analogues may be effective in treating DF-associated thrombocytopenia. METHODOLOGY: A prospective study was done at Dr. Ziauddin Hospital, a tertiary care hospital in Karachi, Pakistan, from September 2023 to April 30, 2024. RESULTS: This study recruited 300 DF patients characterized by thrombocytopenia (platelet count < 30,000), including 159 in the treatment and 141 in the control group. The median age of patients was 34 ± 11.05 years, with 187 males (62.3%) and 113 females (37.7%). The treatment group had a higher proportion of fever (80%, p < 0.0001) and headache (96%, p = 0.012) compared to the control group; however, no significant changes were observed in other clinical parameters between the two groups. Following treatment for 5 days, platelet counts of the treatment group increased significantly in response to IL-11 treatment compared to the control group at all time intervals (day 0, day 1, day 2, day 3, day 4, and day 5). Following treatment, males consistently exhibited higher platelet counts than females (all p < 0.05). In addition, patients admitted on day 3 of their course of illness showed a significantly slow response to the treatment compared to those admitted on day 5. Although young individuals exhibited a significant increase in platelet count, the age showed no significant intergroup differences. CONCLUSIONS: IL-11 analogs have promising potential for treating DF-associated thrombocytopenia. Additional investigation is necessary to refine administration protocols and examine the wider therapeutic ramifications of IL-11 in managing DF.

Changes in the Liver Function and Hematological Parameters in Dengue Patients at a Tertiary Care Center: A Descriptive Cross-sectional Study.

INTRODUCTION: Liver is most commonly affected in dengue often resulting in changes in the liver function test parameters. Alterations in hematological parameters are also reported which could serve as early prognostic markers especially in resource limited settings where serological tests for the diagnosis of dengue is not available. This study aims to analyze liver function test and hematological parameter changes in dengue infected patients. METHODS: A descriptive cross-sectional study was conducted from December 2022 to October 2023 in serologically dengue positive patients. Liver function parameters and blood parameters were analyzed from 220 patients. The purposive sampling technique was employed during the selection of participants. RESULTS: Out of 220 study participants, 113 (51.36%) were males and 107 (49.64%) were females. The median age of the participants was 35 years (IQR: 26 - 48 years). Elevated serum AST and ALT levels were present in 121 (55%) and 80 (36.36%) of the participants respectively. Thrombocytopenia and leukopenia were observed in 92 (41.82%) and 88 (40%) of the study participants respectively. The median hemoglobin level was 14.4 (IQR: 13-15.47) g/dl. Low hemoglobin level was found in 31 (14.09%) participants. The median red blood cell count was 4.91 (IQR: 4.49 - 5.28) millions/mm3 with decreased red blood cell count noted in 27 (12.27%) participants. CONCLUSIONS: Increased serum transaminases levels, thrombocytopenia and leukopenia are common laboratory findings in dengue patients.

Thrombocytopenia in dengue infection: mechanisms and a potential application.

Thrombocytopenia is a common symptom and one of the warning signs of dengue virus (DENV) infection. Platelet depletion is critical as it may lead to other severe dengue symptoms. Understanding the molecular events of this condition during dengue infection is challenging because of the multifaceted factors involved in DENV infection and the dynamics of the disease progression. Platelet levels depend on the balance between platelet production and platelet consumption or clearance. Megakaryopoiesis and thrombopoiesis, two interdependent processes in platelet production, are hampered during dengue infection. Conversely, platelet elimination via platelet activation, apoptosis and clearance processes are elevated. Together, these anomalies contribute to thrombocytopenia in dengue patients. Targeting the molecular events of dengue-mediated thrombocytopenia shows great potential but still requires further investigation. Nonetheless, the application of new knowledge in this field, such as immature platelet fraction analysis, may facilitate physicians in monitoring the progression of the disease.

Child Neurology: Acute Necrotizing Encephalopathy of Childhood Associated With Dengue: Good Neurologic Outcome Despite a Fulminant Presentation.

Acute necrotizing encephalopathy of childhood (ANEC) is characterized by a rapidly progressive encephalopathy after a viral febrile illness, with multiple, symmetrical lesions in the brain including the thalami. Acute dengue fever is a known, but rare, trigger for ANEC. The clinical course of ANEC is usually fulminant and is associated with high morbidity and mortality. We describe here a prospective cohort of 5 children who presented with ANEC associated with dengue infection characterized by encephalopathy within the first week of fever, followed by a rapidly deteriorating sensorium requiring intensive care unit admission. Dengue fever was diagnosed based on a positive nonstructural protein 1 antigen test. ANEC was diagnosed based on characteristic MRI brain findings including the "trilaminar sign" in bilateral thalami combined with clinical features of severe encephalopathy, thrombocytopenia, and transaminitis. All the children required prolonged hospital stay (mean duration 30 days), with 4 of 5 children requiring mechanical ventilation (mean duration 21 days). All the children received immunomodulation with IV methylprednisolone either alone or followed by IV immunoglobulin. Although these children were bedridden at discharge (modified Rankin Scale, mRS score 4 or 5), they showed a consistent recovery in follow-up. At 6 months of follow-up, all the children were fully independent in activities of daily living (mRS scores 1-2). These cases highlight good neurologic outcomes in children with ANEC associated with dengue despite a catastrophic presentation and a protracted hospital course. The most common residual neurologic deficits noted were hand tremors and extrapyramidal dysarthria.

Central and Peripheral Nervous System Manifestations Associated with Dengue Illness.

Dengue illness, caused by the dengue viruses, continues to be a major global health concern, with increasing incidence and the emergence of severe manifestations such as neurological complications. An overview of the current understanding of dengue epidemiology, clinical manifestations, and research priorities is presented here. Dengue transmission has escalated in recent years, exacerbated by factors such as vector expansion, climate change, and socioeconomic challenges. The clinical spectrum of dengue ranges from mild febrile illness to severe manifestations, including hemorrhagic fever and neurological complications. Neurological manifestations of dengue, once considered rare, are now increasingly reported, encompassing encephalitis, myelitis, and Guillain-Barré Syndrome, among others. Diagnosis primarily relies on laboratory methods such as RT/PCR, NS1 antigen detection, and serological assays. Despite advancements in understanding the dengue pathogenesis, there remains a critical need for effective vaccines, antiviral drugs, improved surveillance methods, predictive models for disease severity, and long-term studies on post-Dengue sequelae. Integrated programs and holistic approaches to dengue control are essential for mitigating its impact. Addressing these research priorities will be pivotal in combating dengue and reducing its global burden.

Dengue Infection During Pregnancy and Adverse Birth Outcomes: A Systematic Review and Meta-Analysis.

Dengue is a rapidly spreading mosquito-borne viral disease, posing significant public health challenges in tropical and subtropical regions. This systematic review and meta-analysis aimed to evaluate the relationship between maternal dengue virus infection and adverse birth outcomes. A literature search was conducted in PubMed, Embase, and web of science databases until April 2024. Observational studies examining the association between laboratory-confirmed maternal dengue infection and adverse birth outcomes such as preterm birth, low birth weight (LBW), small for gestational age (SGA), stillbirth, and postpartum haemorrhage were included. Data were extracted, and risk of bias was assessed using the Newcastle-Ottawa Scale. Random-effects meta-analysis models were used to pool data in R software (V 4.3). Twenty studies met the inclusion criteria. The pooled prevalence of preterm birth among dengue-affected pregnancies was 18.3% (95% CI: 12.6%-25.8%), with an OR of 1.21 (95% CI: 0.78-1.89). For LBW, the pooled prevalence was 17.1% (95% CI: 10.4%-26.6%), with an OR of 1.00 (95% CI: 0.69-1.41). SGA had a pooled prevalence of 11.2% (95% CI: 2.7%-36.9%) and an OR of 0.93 (95% CI: 0.41-2.14). The prevalence of stillbirth was 3.3% (95% CI: 1.6%-6.8%), with significant associations found in some studies (RR: 2.67; 95% CI: 1.09-6.57). Postpartum haemorrhage had an OR of 1.97 (95% CI: 0.53-2.69). While maternal dengue infection was associated with a higher prevalence of preterm birth and LBW, the associations were not statistically significant. Significant associations were observed for stillbirth in specific studies. Further research with standardized methodologies is needed to clarify these relationships and identify potential mechanisms.

Predictors of acute kidney injury in dengue patients: a systematic review and meta-analysis.

BACKGROUND: Dengue infection poses a significant global health challenge, particularly in tropical and subtropical regions. Among its severe complications, Acute kidney injury (AKI) stands out due to its association with increased morbidity, mortality, and healthcare burdens. This Meta-analysis aim to identify and evaluate the predictors of AKI among dengue patients, facilitating early detection and management strategies to mitigate AKI's impact. METHODS: We searched PubMed, EMBASE, and Web of Science databases, covering literature up to February 2024. We included human observational studies reporting on AKI predictors in confirmed dengue cases. Nested-Knowledge software was used for screening and data extraction. The Newcastle-Ottawa Scale was used for quality assessment. R software (V 4.3) was utilized to compute pooled odds ratios (ORs) and 95% confidence intervals (CIs) for each predictor. RESULTS: Our search yielded nine studies involving diverse geographic locations and patient demographics. A total of 9,198 patients were included in the studies, with 542 diagnosed with AKI. in which key predictors of AKI identified include severe forms of dengue (OR: 2.22, 95% CI: 1.02-3.42), male gender (OR: 3.13, 95% CI: 1.82-4.44), comorbidities such as diabetes mellitus (OR: 3.298, 95% CI: 0.274-6.322), and chronic kidney disease (OR: 2.2, 95% CI: 0.42-11.24), as well as co-infections and clinical manifestations like rhabdomyolysis and major bleeding. CONCLUSION: Our study identifies several predictors of AKI in dengue patients. These findings indicate the importance of early identification and intervention for high-risk individuals. Future research should focus on standardizing AKI diagnostic criteria within the dengue context and exploring the mechanisms underlying these associations to improve patient care and outcomes.

Post-dengue mucormycosis- a novel entity or COVID-19 associated in disguise?

Dengue is a disease endemic to tropical countries such as India. In the past two years, cases of COVID-19 associated Mucormycosis have become a commonly encountered phenomenon. However, cases of dengue associated Mucormycosis have not found a significant mention in the literature yet. We, therefore, report two such cases in which Mucormycosis developed after recovery from Dengue fever and try to dig into the possible mechanism behind such an occurrence.

Case report: liver failure as a debut of autoimmune hepatitis triggered by dengue virus in a pregnant woman. / Falla hepática aguda como debut de hepatitis autoinmune desencadenada por dengue en una gestante: reporte de caso.

Autoimmune hepatitis (AIH) is a complex condition with unclear origins, involving genetic susceptibility and environmental triggers that lead to immune system dysfunction. We report a case of a pregnant woman from a mosquito-borne disease-endemic area who presented jaundice, abdominal pain, and pruritus, complicated by acute liver failure. Immunological markers showed AIH triggered by dengue virus infection, which was confirmed by a positive IgM test. Treatment with supportive care followed by steroids and azathioprine resulted in favorable outcomes, averting the need for a liver transplant. Although AIH can be triggered by viruses, the role of dengue in its pathogenesis remains poorly understood. Regular clinical monitoring is vital for managing AIH, particularly during pregnancy, due to variable immune status and treatment responses. Further research is necessary to understand the link between dengue infection and AIH. Individualized treatment strategies are crucial, especially during pregnancy, in order to ensure favorable outcomes.

La hepatitis autoinmune (HAI) es una condición compleja con etiología poco clara, que engloba componentes genéticos y ambientales que pueden desencadenar disfunción del sistema inmunológico. Presentamos el caso de una gestante de una zona endémica de dengue que se presentó con ictericia, dolor abdominal y prurito, complicándose con insuficiencia hepática aguda. Los marcadores inmunológicos indicaron HAI desencadenada por la infección del virus del dengue, confirmada por una prueba positiva de IgM. El tratamiento con cuidados de soporte seguido de corticoterapia y azatioprina tuvo resultados clínicos y laboratoriales favorables, evitando la necesidad de un trasplante de hígado. Diversos virus han sido descritos como desencadenantes de HAI; sin embargo, el papel del virus del dengue en su patogénesis sigue siendo desconocido. El monitoreo clínico regular es vital para el manejo de la HAI, especialmente durante el embarazo, debido a las alteraciones inmunológicas y las diversas respuestas al tratamiento. Se necesita más investigación para dilucidar el vínculo entre la infección por dengue y el desarrollo de HAI. El tratamiento individualizado en estos pacientes es crucial, especialmente durante el embarazo, para disminuir el riesgo de complicaciones.

[Considerations for the acute management of stroke during the dengue epidemic]. / Consideraciones para el manejo agudo del accidente cerebrovascular durante la epidemia de dengue.

Stroke is the leading cause of disability and the third leading cause of mortality in our country. Argentina and the Region of the Americas are going through the worst epidemic outbreak of dengue on record with significant demand on the health system. Dengue could increase the risk of stroke and given the time-dependent nature of the management of this disease to reduce morbidity and mortality and the potential considerations to be taken into account in patients with dengue, we present a focused review of the literature with points of uncertainty and aspects to be considered in the stroke code considering the clinical characteristics and high demand of the health system caused by the dengue fever. A call is also made to generate evidence on the management of stroke in patients with dengue.

El accidente cerebrovascular (ACV) es la principal causa de discapacidad y la tercera causa de mortalidad en nuestro país. Argentina y la región de las Américas se encuentran atravesando el peor brote epidémico de dengue del que se tenga registro, con una importante demanda en el sistema de salud. El dengue podría aumentar el riesgo de ACV y dada la naturaleza tiempo dependiente del manejo de esta enfermedad para reducir la morbilidad y mortalidad, y las potenciales consideraciones a tener en cuenta en los pacientes con dengue, se presenta una revisión breve de la literatura con puntos de incertidumbre y aspectos a considerar en el protocolo o código de ACV, considerando las características clínicas y alta demanda del sistema de salud provocada por el dengue. Se realiza también un llamado a generar evidencia sobre el manejo del ACV en pacientes con dengue.

A Study of Neurological Involvement in Dengue and Chikungunya Infection.

INTRODUCTION: Chikungunya virus (CHIKV) and dengue fever have been reported for recent epidemics worldwide, with varied clinical involvement. Chikungunya was first reported to affect the nervous system in the 1960s. The clinical profile of dengue with multi-organ involvement is varied with reported involvement of the central nervous system in some. AIM: The aim of this study was to study the frequency and pattern of neurological involvement in patients admitted with dengue and chikungunya in a tertiary care hospital. MATERIALS AND METHODS: Patients admitted with confirmed chikungunya and dengue were evaluated clinically and investigations were enrolled in the study. Patients with preexisting neurological issues, obvious metabolic, vascular, or septic causes for neurological involvement were excluded from the study. RESULTS: A total of 309 patients with chikungunya were included in the study. Out of these, 11 (3.56%) patients were found to have neurological involvement. The most common presentations were altered sensorium (100%) followed by headache (81.81%). The relative risk of mortality in patients with neurological involvement due to chikungunya was 7.96. A total of 443 patients with dengue fever were enrolled in the study. Out of these, 5 (1.10%) patients were found to have neurological involvement. The most common presentations were altered sensorium and headache (100%), followed by vomiting (80%). The relative risk of mortality in patients with neurological involvement due to dengue was 5.15. CONCLUSION: The recent epidemic of chikungunya and dengue virus infections was associated with various neurological complications. Neurological involvement of chikungunya and dengue was identified to be a bad prognostic factor with significantly higher mortality. LIMITATIONS: This is a single center study, involving only the patients admitted to the hospital. Furthermore, being an observational study, follow-up could not be done to look for neurological sequelae.

Résumé Introduction:le virus du chikungunya (CHIKV) et la dengue ont été signalés pour des épidémies récentes dans le monde, avec une implication clinique variée. Chikungunya a d'abord affecté le système nerveux dans les années 1960. Le profil clinique de la dengue avec une implication multi-organes est varié avec l'implication rapportée du système nerveux central dans certains.Objectif:Le but de cette étude était d'étudier la fréquence et le schéma d'implication neurologique chez les patients admis avec de la dengue et le chikungunya dans un hôpital de soins tertiaires.Matériaux et méthodes:patients Admis avec le chikungunya et la dengue confirmés ont été évalués cliniquement et les enquêtes ont été inscrites à l'étude. Les patients présentant des problèmes neurologiques préexistants, des causes métaboliques, vasculaires ou septiques évidentes de participation neurologique ont été exclues de l'étude.Résultats:Un total de 309 patients atteints de chikungunya ont été inclus dans l'étude. Parmi ceux-ci, 11 (3,56%) patients se sont révélés avoir une atteinte neurologique. Les présentations les plus courantes ont été modifiées du sensorium (100%) suivie de maux de tête (81,81%). Le risque relatif de mortalité chez les patients présentant une atteinte neurologique due au chikungunya était de 7,96. Au total, 443 patients atteints de dengue ont été inscrits à l'étude. Parmi ceux-ci, 5 (1,10%) patients se sont révélés avoir une atteinte neurologique. Les présentations les plus courantes ont été modifiées du sensorium et des maux de tête (100%), suivis par des vomissements (80%). Le risque relatif de mortalité chez les patients présentant une atteinte neurologique due à la dengue était de 5,15.Conclusion:L'épidémie récente des infections du chikungunya et du virus de la dengue a été associée à diverses complications neurologiques. L'atteinte neurologique du chikungunya et de la dengue a été identifiée comme étant un mauvais facteur pronostique avec une mortalité significativement plus élevée.Limites:Il s'agit d'une étude centrale unique, impliquant uniquement les patients admis à l'hôpital. De plus, étant une étude observationnelle, le suivi n'a pas pu être fait pour rechercher des séquelles neurologiques.

Dengue and leptospirosis coinfection: a case series.

BACKGROUND: Both dengue and Leptospira infections are endemic to tropical and subtropical regions, with their prevalence increasing in recent decades. Coinfection with these pathogens presents significant diagnostic challenges for clinicians due to overlapping clinical manifestations and laboratory findings. This case report aims to elucidate two clinical scenarios where the coinfection of dengue and leptospirosis complicates the disease course, creating a diagnostic conundrum. CASE PRESENTATION: We present the clinical scenarios of two Bangladeshi males, aged 25 and 35 years, who were admitted to our hospital with acute febrile illness. The first patient exhibited hepatic and renal involvement, while the second presented with symptoms initially suggestive of meningoencephalitis. Both cases were initially managed under the presumption of dengue infection based on positive serology. However, further evaluation revealed coinfection with Leptospira, complicating the disease course. Both patients received appropriate treatment for dengue and antibacterial therapy for leptospirosis, ultimately resulting in their recovery. CONCLUSION: These case scenarios underscore the critical importance for clinicians in regions where dengue and Leptospira are endemic to consider both diseases when evaluating patients presenting with acute febrile illness.

New biomarkers for liver involvement by dengue infection in adult Vietnamese patients: a case-control study.

Liver injury with marked elevation of aspartate aminotransferase enzyme (AST) is commonly observed in dengue infection. To understand the pathogenesis of this liver damage, we compared the plasma levels of hepatic specific, centrilobular predominant enzymes (glutamate dehydrogenase, GLDH; glutathione S transferase-α, αGST), periportal enriched 4-hydroxyphenylpyruvate dioxygenase (HPPD), periportal predominant arginase-1 (ARG-1), and other non-specific biomarkers (paraoxonase-1, PON-1) in patients with different outcomes of dengue infection. This hospital-based study enrolled 87 adult dengue patients, stratified into three groups based on plasma AST levels (< 80, 80-400, > 400 U/L) in a 1:1:1 ratio (n = 40, n = 40, n = 40, respectively. The new liver enzymes in the blood samples from the 4th to 6th days of their illness were measured by commercial enzyme-linked immunosorbent assay (ELISA) or colorimetric kits. Based on the diagnosis at discharge days, our patients were classified as 40 (46%) dengue without warning signs (D), 35 (40.2%) dengue with warning signs (DWS), and 11 (12.6%) severe dengue (SD) with either shock (two patients) or AST level over 1000 U/L (nine patients), using the 2009 WHO classification. The group of high AST (> 400 U/L) also had higher ALT, GLDH, ARG-1, and HPPD than the other groups, while the high (> 400 U/L) and moderate (80-400 U/L) AST groups had higher ALT, αGST, ARG-1, and HPPD than the low AST group (< 80 U/L). There was a good correlation between AST, alanine aminotransferase enzyme (ALT), and the new liver biomarkers such as GLDH, αGST, ARG-1, and HPPD. Our findings suggest that dengue-induced liver damage initiates predominantly in the centrilobular area toward the portal area during the dengue progression. Moreover, these new biomarkers should be investigated further to explain the pathogenesis of dengue and to validate their prognostic utility.

Obesity Is Associated With Increased Pediatric Dengue Virus Infection and Disease: A 9-Year Cohort Study in Managua, Nicaragua.

BACKGROUND: Obesity is on the rise globally in adults and children, including in tropical areas where diseases such as dengue have a substantial burden, particularly in children. Obesity impacts risk of severe dengue disease; however, the impact on dengue virus (DENV) infection and dengue cases remains an open question. METHODS: We used 9 years of data from 5940 children in the Pediatric Dengue Cohort Study in Nicaragua to determine whether pediatric obesity is associated with increased susceptibility to DENV infection and symptomatic presentation. Analysis was performed using generalized estimating equations adjusted for age, sex, and preinfection DENV antibody titers. RESULTS: From 2011 to 2019, children contributed 26 273 person-years of observation, and we observed an increase in prevalence of overweight (from 12% to 17%) and obesity (from 7% to 13%). There were 1682 DENV infections and 476 dengue cases in the study population. Compared with participants with normal weight, participants with obesity had higher odds of DENV infection (adjusted odds ratio [aOR], 1.21; 95% confidence interval [CI]: 1.03-1.42) and higher odds of dengue in DENV-infected individuals (aOR, 1.59; 95% CI: 1.15-2.19). Children with obesity infected with DENV showed increased odds of presenting fever (aOR, 1.46; 95% CI: 1.05-2.02), headache (aOR, 1.51; 95% CI: 1.07-2.14), and rash (aOR, 2.26; 95% CI: 1.49-3.44) when compared with children with normal weight. CONCLUSIONS: Our results indicate that obesity is associated with increased susceptibility to DENV infection and dengue cases in children, independent of age, sex, and preinfection DENV antibody titers.

Risk of severe dengue during secondary infection: A population-based cohort study in Taiwan.

BACKGROUND: Dengue poses a significant public health concern. Secondary dengue infections with different dengue virus (DENV) serotypes have been linked to an increased risk of severe dengue. This study aimed to assess the risk of severe dengue during secondary infection in Taiwan. METHODS: A retrospective cohort study was conducted using Taiwan's National Health Insurance Research Database to identify dengue cases with secondary dengue infection born after 1944 from 2014 to 2015. Ten matched patients with primary infection were selected as controls using propensity score matching for each secondary dengue infection case. The odds ratio (OR) for severe dengue in secondary versus primary infections was calculated using conditional logistic regression. RESULTS: This study included 357 cases with secondary dengue infection and 3570 matched controls. The risk of severe dengue was found to be 7.8% in individuals with secondary infection, compared to 3.8% in those with primary dengue infection. Secondary infection significantly increased the risk of severe dengue (OR 2.13, 95% CI: 1.40-3.25, P = 0.0004). Notably, a significant association between secondary infection and severe dengue was observed only when the interval between the first and secondary infection was greater than two years (OR 3.19, 95% CI 2.04-5.00, P < 0.0001). CONCLUSION: Secondary dengue infection significantly increases the risk of severe disease in Taiwan, particularly when the interval between infections is over two years. Healthcare professionals should maintain heightened vigilance for individuals with a history of previous dengue infection, particularly if their initial diagnosis was more than two years prior.

Severe Organ Impairment Was Common in Elderly Individuals with Dengue in Guangdong, China.

Guangdong, China, has experienced several dengue epidemics involving thousands of confirmed cases in recent decades, and elderly individuals suffered severe dengue (SD) most seriously. However, the clinical characteristics and risk factors for SD among elderly patients in Guangdong have not been investigated. Patients older than 65 years were recruited and divided into a dengue fever (DF) group and an SD group according to the 2009 Dengue Guidelines of the WHO. We analyzed the clinical manifestations of the elderly patients with dengue and then assessed the risk factors for SD. Of a total of 1,027 patients, 868 patients were diagnosed as having DF and 159 as having SD. Of the 159 elderly patients with SD, 129 (81%) had comorbidities, with hypertension being the most common. Severe organ impairment (SOI) (115, 54%) was the most common presentation in SD patients, followed by severe plasma leakage (52, 24.4%) and severe hemorrhage (46, 21.6%). The most common symptom of SOI was kidney injury, followed by heart injury and central nervous system injury. Furthermore, multivariate regression revealed that the presence of chronic obstructive pulmonary disease (COPD), a lower red blood cell (RBC) count (≤3.5 × 1012/L; odds ratio [OR], 0.35; 95% CI, 0.17-0.55; P <0.001), lower serum albumin (ALB) (≤35 U/L; OR, 0.18; 95% CI, 0.09-0.32; P <0.001), and hyperpyrexia (body temperature ≥39°C; OR, 1.8; 95% CI, 1.2-2.6, P <0.001) were risk factors for SD. Severe organ impairment was the predominant manifestation in elderly individuals with SD characterized by kidney injury. The potential risk factors of SD such as presence of COPD and hyperpyrexia and lower RBC and ALB levels might help clinicians identify patients with SD early.

Case Report: Dengue Fever Progressing to Acute Liver Failure and Hepatic Encephalopathy.

Dengue fever is an important arboviral disease that significantly impacts the disease burden among populations residing in tropical regions. Dengue infection is known to have a broad spectrum of clinical manifestations, which range from fatal, life-threatening shock, encephalitis, and myocarditis to asymptomatic illness. Mild hepatic dysfunction with deranged hepatic laboratory parameters is a known entity with dengue fever. However, dengue presenting as acute liver failure associated with hepatic encephalopathy without shock or signs of plasma leakage is rare. Therefore, we are reporting the case of a young male with dengue fever presented as acute liver failure from a tertiary care center in central India to spread awareness among healthcare professionals worldwide regarding unusual presentations of dengue fever and consideration of dengue fever as a differential diagnosis in patients presenting with acute liver failure, especially in endemic regions.

Incidence of acute liver failure and its associated mortality in patients with dengue infection: A systematic review and meta-analysis.

Acute liver failure (ALF) is a devastating consequence of dengue infection. This systematic review and meta-analysis assessed the incidence of ALF in dengue infection and its associated mortality. We systematically searched the EMBASE and MEDLINE databases from inception to December 2023 for observational studies reporting ALF incidence and mortality in dengue patients. Twenty-one studies encompassing 26,839 dengue-infected patients were included. Meta-analysis revealed a pooled incidence of ALF in cases of general dengue infection of 2.0 % (95 % CI, 1.2-3.0 %), with 1.2 % (95 % CI, 0.6-2.1 %) in adults and 5.0 % (95 % CI, 1.5-10.2 %) in children. ALF incidence was 17.3 % (95 % CI, 6.5 %-31.5 %) in severe dengue and 7.4 % (95 % CI, 0.8-18.5 %) in dengue shock syndrome. The pooled mortality rate of dengue-associated ALF was 47.0 % (95 % CI, 32.9-61.2 %). These findings underscore the detrimental impact of dengue infection on the development of the relatively uncommon, albeit life-threatening, condition of ALF.

Dengue rhabdomyolysis successfully treated with hemoperfusion using CytoSorb® in combination with continuous renal replacement therapy: a case report.

BACKGROUND: Dengue fever is a mosquito-borne viral infection with a broad spectrum of clinical manifestations. Expanded dengue syndrome includes unusual manifestations that do not fall into the categories of dengue fever, dengue hemorrhagic fever, or dengue shock syndrome. Rhabdomyolysis causing acute renal failure in dengue is one such unusual manifestation, the pathophysiology of which is incompletely understood. CASE PRESENTATION: We describe a 21-year-old Sri Lankan man with dengue fever who developed severe rhabdomyolysis and acute kidney injury with extremely high creatinine phosphokinase levels (> 2 million U/L). Management of this patient was challenging as his creatinine phosphokinase kept rising with persistent anuria despite hydration, intermittent hemodialysis, and, later, continuous venovenous hemodiafiltration. Further therapeutic options were explored, and CytoSorb® adsorber was added as an adjunct to continuous venovenous hemodiafiltration, following which we observed a marked reduction in his creatinine phosphokinase and myoglobin levels over the next 12 hours and complete renal recovery over the next 5 weeks. CONCLUSION: We report a rare case of significant rhabdomyolysis secondary to dengue infection leading to acute kidney injury. Continuous venovenous hemodiafiltration performed with the hemofilter Pecopen 140 was ineffective, and the addition of CytoSorb® adsorber as an adjunct therapy to continuous venovenous hemodiafiltration may have a potential benefit in removing high-molecular-weight proteins such as myoglobin.

Mucocutaneous Manifestations in Patients with Dengue Fever: From the EPIDENGUE Cohort on Reunion Island.

Nearly 4 billion people live in a dengue risk area worldwide. The prevalence of dengue-related mucocutaneous manifestations and their association with severe dengue differ across studies. The aim of the study was to describe the characteristics of patients with dengue-related mucocutaneous manifestations and to investigate those were associated with severe dengue. A retrospective study was conducted in 2019 among patients with a positive RT-PCR for dengue at the University Hospital of Reunion, which has been experiencing a re-emergence of dengue since 2018. Of 847 patients with confirmed dengue, 283 (33.4%) developed mucocutaneous manifestations. Only manifestations of dehydration such as glossitis, dysgeusia, or conjunctivitis were associated with severe dengue, unlike pruritus and rash, in bivariate analysis but not in multivariate analysis. The rash and pruritus of dengue appear to be accompanied by a pronounced flu-like syndrome in younger people without comorbidity or severity, although careful examination of mucous membranes would better identify signs of dehydration and thus cases likely to worsen.