Crimean-Congo hemorrhagic fever(CCHF)virus belongs to the genus Nairovirus and family Bunyaviridae.CCHF is a tickborne disease that has mostly been reported from Asia,Africa and Europe.Early diagnosis of CCHF is essen...Crimean-Congo hemorrhagic fever(CCHF)virus belongs to the genus Nairovirus and family Bunyaviridae.CCHF is a tickborne disease that has mostly been reported from Asia,Africa and Europe.Early diagnosis of CCHF is essential for patient care and preventing its spread to normal individuals.Treatment of CCHF is mostly limited to the use of ribavirin and palliative care.The practice of using interferon and vaccines has also been proved to be ineffective and unsafe.A search for an effective alternative treatment of the CCHF still continues.Therefore,the current review focusses on the cause,prevalence,mode of transmission,pathophysiology,signs,symptoms,diagnostic features and treatment options of CCHF.This review also highlights the possible alternative therapy in the form of antiviral medicinal plants which are effective against viral hemorrhagic fever.These medicinal plants have shown convincing evidence for their activities against different viral hemorrhagic fevers and may be used alone or in combination with existing therapies to achieve an optimum therapeutic response.展开更多
Objective To observe the application of continuous renal replacement therapy(CRRT) and heparin anticoagulation in patients with HFRS, and to explore a more suitable anticoagulant strategy. Methods Eighty-five severe-t...Objective To observe the application of continuous renal replacement therapy(CRRT) and heparin anticoagulation in patients with HFRS, and to explore a more suitable anticoagulant strategy. Methods Eighty-five severe-type patients(severe group) and 71 critical-type patients(critical group) were enrolled in this study. The frequency of CRRT was compared between the two groups; the frequency of CRRT treated with and without heparin anticoagulation and the frequency of hemorrhage and channel blood clotting induced by the two anticoagulant strategies were observed. Results The frequency of CRRT in the critical group was higher than that in the severe group(P < 0.001). The frequency of CRRT initiated during the overlapping phases in the critical group was significantly higher than that of the severe group(P = 0.032). The total times of CRRT was 103, and 70 of them were treated with heparin anticoagulation. The frequencies of hemorrhage induced by heparin anticoagulation and no heparinization were 16 and 0, respectively, and the frequencies of channel blood clotting were 2 and 4, respectively. Conclusions CRRT has been used extensively in the critical-type patients with HFRS. The heparin anticoagulation and no anticoagulant strategies should be used more rationally in patients treated with CRRT, according to the clinical characteristics of the disease.展开更多
Objective: It demonstrates the correlation of the viral hemorrhagic fever with kidney failure and the treatment as well as the outcome. Method: A PubMed search of the English literature from 1999 to 2019 was performed...Objective: It demonstrates the correlation of the viral hemorrhagic fever with kidney failure and the treatment as well as the outcome. Method: A PubMed search of the English literature from 1999 to 2019 was performed using “viral hemorrhagic fever, Case Report, Renal Failure” as the subject. The inclusion criteria were the following: 1) case report and case series of two or more patients;2) the report detailed the clinical presentation and reported the status of the renal system;3) the report described the management of renal failure if any;and 4) the etiology of the infection is known and is one of the known agents of viral hemorrhagic fever, listed on the centers of disease control website. We excluded infections related to vaccination related to viral hemorrhagic fever. Result: We found the mean age of these patients was 41.5. The male to female ratio was about 3.5:1. Dengue and Hantaviruses constituted 70.5% of patients. The overall mortality of the study cohort was 32.2%. Half of the patients had acute kidney injury and required renal replacement therapy. The chi-square statistic is 0.41;The p-value is 0.51;The chi-square statistic is 6.4254. Overall mortality was 32.3% in one cohort of 78 patients. The illness goes through several stages [1] [2] of clinical features and some viruses in the group have a high case fatality rate. Conclusions: Early diagnosis with aggressive supportive care is critical for improving clinical outcomes. Renal involvement is common. Amongst the cohort reviewed, of patients who had acute kidney injury, half of the patients required renal replacement support. However, some viruses cause greater kidney injury than others, for instance, kidney injury is more severe in Dengue hemorrhagic fevers when compared to Hantaviruses. Simultaneous management of public health by prevention and control of outbreaks is particularly important.展开更多
The diagnosis and treatment of fever of unknown origin (FUO) are huge challenges to clinicians.Separating the etiologies of FUO into infectious and non-infectious disease is conducive to clinical physicians not only o...The diagnosis and treatment of fever of unknown origin (FUO) are huge challenges to clinicians.Separating the etiologies of FUO into infectious and non-infectious disease is conducive to clinical physicians not only on making decisions rapidly concerning the prescription of suitable antibiotics but also on further analysis of the final diagnosis.In order to develop and validate a diagnostic tool to efficiently distinguish the etiologies of adult FUO patients as infectious or non-infectious disease,FUO patients from the departments of infectious disease and internal medicine in three Chinese tertiary hospitals were enrolled retrospectively and prospectively.By using polynomial logistic regression analysis,the diagnostic formula and the associated scoring system were developed.The variables included in this diagnostic formula were from clinical evaluations and common laboratory examinations.The proposed tool could discriminate infectious and noninfectious causes of FUO with an area under receiver operating characteristic curve (AUC) of 0.83,sensitivity of 0.80 and specificity of 0.75.This diagnosis tool could predict the infectious and non-infectious causes of FUO in the validation cohort with an AUC of 0.79,sensitivity of 0.79 and specificity of 0.70.The results suggested that this diagnostic tool could be a reliable tool to discriminate between infectious and non-infectious causes of FUO.展开更多
The present study aimed to establish a list of parameters indicative of pathogen invasion and develop a predictive model to distinguish the etiologies of fever of unknown origin (FUO) into infectious and non-infectiou...The present study aimed to establish a list of parameters indicative of pathogen invasion and develop a predictive model to distinguish the etiologies of fever of unknown origin (FUO) into infectious and non-infectious causes.From January 2014 to September 2017,431 patients with FUO were prospectively enrolled in the study population.This study established a list of 26 variables from the following 4aspects:host factors,epidemiological factors,behavioral factors,and iatrogenic factors.Predefined predicted variables were included in a multivariate logistic regression analysis to develop a predictive model.The predictive model and the corresponding scoring system were developed using data from the confirmed diagnoses and 9 variables were eventually identified.These factors were incorporated into the predictive model.This model discriminated between infectious and non-infectious causes of FUO with an AUC of 0.72,sensitivity of 0.71, and specificity of 0.63.The predictive model and corresponding scoring system based on factors concerning pathogen invasion appear to be reliable screening tools to discriminate between infectious and non-infectious causes of FUO.展开更多
AIM To describe the frequency and clinical characteristics of patients with undifferentiated periodic fever(UPF) and to investigate whether a clinical classification of UPF based on the PRINTO-Eurofever score can help...AIM To describe the frequency and clinical characteristics of patients with undifferentiated periodic fever(UPF) and to investigate whether a clinical classification of UPF based on the PRINTO-Eurofever score can help predicting the response to treatment and the outcome at follow-up.METHODS Clinical and therapeutic information of patients with recurrent fever who presented at a single pediatric rheumatology center from January 2006 through April 2016 were retrospectively collected. Patients with a clinical suspicion of hereditary periodic fever(HPF) syndrome and patients with clinical picture of periodic fever, aphthae, pharingitis, adenitis(PFAPA) who were refractory to tonsillectomy underwent molecular analysis of five HPF-related genes: MEFV(NM_000243.2), MVK(NM_000431.3), TNFRSF1 A(NM_001065.3), NLRP3(NM_001079821.2), NLRP12(NM_001277126.1). All patients who had a negative genetic result were defined as UPF and further investigated. PRINTO-Eurofever score for clinical diagnosis of HPF was calculated in all cases. RESULTS Of the 221 patients evaluated for periodic fever, twelve subjects with a clinical picture of PFAPA who were refractory to tonsillectomy and 22 subjects with a clinical suspicion of HPF underwent genetic analysis. Twenty-three patients(10.4%) resulted negative and were classified as UPF. The median age at presentation of patients with UPF was 9.5 mo(IQR 4-24). Patients with UPF had a higher frequency of aphthae(52.2% vs 0%, P = 0.0026) and musculoskeletal pain(65.2% vs 18.2%, P = 0.0255) than patients with genetic confirmed HPF. Also, patients with UPF had a higher frequency of aphthous stomatitis(52.2% vs 10.7%, P < 0.0001), musculoskeletal pain(65.2% vs 8,0%, P < 0.0001), and abdominal pain(52.2% vs 4.8%, P < 0.0001) and a lower frequency of pharyngitis(56.6% vs 81.3%, P = 0.0127) compared with typical PFAPA in the same cohort. Twenty-one of 23 patients with UPF(91.3%) received steroids, being effective in 16; 13(56.2%) were given colchicine, which was effective in 6. Symptoms resolution occurred in 2 patients with UPF at last follow-up. Classification according to the PRINTOEurofever score did not correlate with treatment response and prognosis. CONCLUSION UPF is not a rare diagnosis among patients with periodic fever. Clinical presentation place UPF half way on a clinical spectrum between PFAPA and HPF. The PRINTOEurofever score is not useful to predict clinical outcome and treatment response in these patients.展开更多
OBJECTIVE:To investigate the effect of Tuina on the plasma metabolites of lipopolysaccharide-induced febrile in infant rabbits.METHODS:Twenty-four infant New Zealand rabbits were selected and randomly divided into thr...OBJECTIVE:To investigate the effect of Tuina on the plasma metabolites of lipopolysaccharide-induced febrile in infant rabbits.METHODS:Twenty-four infant New Zealand rabbits were selected and randomly divided into three groups:saline,model,and Tuina.The fever model was established by injecting LPS intravenously through the ear margin vein in the model group and Tuina group,respectively.The modeling was considered successful when the anal temperature increased by 0.5℃or above within 1 h.In the Tuina group,six Tuina techniques(i.e.,opening Tianmen/the heaven gate,pushing Kangong/the superciliary arch,kneading Taiyang and the prominent bone behind the ears,clearing Tianheshui,spine pinching)that alleviate fever were performed on the young rabbits 1 h after the modeling,whereas the model and saline groups were not given Tuina treatment,with the real-time anal temperature monitored during the experiment.The plasma was taken 3 h after the modeling for liquid chromatography-mass spectrometry(LC-MS)untargeted metabolomics study.RESULTS:Our results showed a fever-reducing effects of Tuina therapy on lipopolysaccharide-induced fever in young rabbits,as indicated by a significantly lower anal temperature,maximum rise in body temperature,and body response index at 2 and 3 h after modeling in the Tuina group compared to the model group,with reductions in the PGE2 expression observed in the blood and hypothalamus.The differential metabolites including riboflavin,nicotinamide N-oxide,porphobilinogen,5-hydroxyindoleacetic acid,gamma-aminobutyric acid,and lysoPC(16:1(9Z)/0:0)were found following the Tuina intervention.Tuina primarily involves glycine-serinethreonine,arginine-proline,porphyrin-chlorophyll,pyrimidine,primary bile acid biosynthesis,and cyanoamino acid metabolic pathways.CONCLUSION:Tuina therapy has proven to be effective in reducing body temperature and down-regulating PGE2 expression in LPS-induced febrile young rabbits,with its mechanism of fever-reducing action possibly associated with the changes in plasma metabolites and metabolic pathways.展开更多
文摘Crimean-Congo hemorrhagic fever(CCHF)virus belongs to the genus Nairovirus and family Bunyaviridae.CCHF is a tickborne disease that has mostly been reported from Asia,Africa and Europe.Early diagnosis of CCHF is essential for patient care and preventing its spread to normal individuals.Treatment of CCHF is mostly limited to the use of ribavirin and palliative care.The practice of using interferon and vaccines has also been proved to be ineffective and unsafe.A search for an effective alternative treatment of the CCHF still continues.Therefore,the current review focusses on the cause,prevalence,mode of transmission,pathophysiology,signs,symptoms,diagnostic features and treatment options of CCHF.This review also highlights the possible alternative therapy in the form of antiviral medicinal plants which are effective against viral hemorrhagic fever.These medicinal plants have shown convincing evidence for their activities against different viral hemorrhagic fevers and may be used alone or in combination with existing therapies to achieve an optimum therapeutic response.
基金supported by the National Basic Research Program of China (973 Program) (No. 2012CB518905)National Natural Science Foundation of China (No. 81071370)
文摘Objective To observe the application of continuous renal replacement therapy(CRRT) and heparin anticoagulation in patients with HFRS, and to explore a more suitable anticoagulant strategy. Methods Eighty-five severe-type patients(severe group) and 71 critical-type patients(critical group) were enrolled in this study. The frequency of CRRT was compared between the two groups; the frequency of CRRT treated with and without heparin anticoagulation and the frequency of hemorrhage and channel blood clotting induced by the two anticoagulant strategies were observed. Results The frequency of CRRT in the critical group was higher than that in the severe group(P < 0.001). The frequency of CRRT initiated during the overlapping phases in the critical group was significantly higher than that of the severe group(P = 0.032). The total times of CRRT was 103, and 70 of them were treated with heparin anticoagulation. The frequencies of hemorrhage induced by heparin anticoagulation and no heparinization were 16 and 0, respectively, and the frequencies of channel blood clotting were 2 and 4, respectively. Conclusions CRRT has been used extensively in the critical-type patients with HFRS. The heparin anticoagulation and no anticoagulant strategies should be used more rationally in patients treated with CRRT, according to the clinical characteristics of the disease.
文摘Objective: It demonstrates the correlation of the viral hemorrhagic fever with kidney failure and the treatment as well as the outcome. Method: A PubMed search of the English literature from 1999 to 2019 was performed using “viral hemorrhagic fever, Case Report, Renal Failure” as the subject. The inclusion criteria were the following: 1) case report and case series of two or more patients;2) the report detailed the clinical presentation and reported the status of the renal system;3) the report described the management of renal failure if any;and 4) the etiology of the infection is known and is one of the known agents of viral hemorrhagic fever, listed on the centers of disease control website. We excluded infections related to vaccination related to viral hemorrhagic fever. Result: We found the mean age of these patients was 41.5. The male to female ratio was about 3.5:1. Dengue and Hantaviruses constituted 70.5% of patients. The overall mortality of the study cohort was 32.2%. Half of the patients had acute kidney injury and required renal replacement therapy. The chi-square statistic is 0.41;The p-value is 0.51;The chi-square statistic is 6.4254. Overall mortality was 32.3% in one cohort of 78 patients. The illness goes through several stages [1] [2] of clinical features and some viruses in the group have a high case fatality rate. Conclusions: Early diagnosis with aggressive supportive care is critical for improving clinical outcomes. Renal involvement is common. Amongst the cohort reviewed, of patients who had acute kidney injury, half of the patients required renal replacement support. However, some viruses cause greater kidney injury than others, for instance, kidney injury is more severe in Dengue hemorrhagic fevers when compared to Hantaviruses. Simultaneous management of public health by prevention and control of outbreaks is particularly important.
文摘The diagnosis and treatment of fever of unknown origin (FUO) are huge challenges to clinicians.Separating the etiologies of FUO into infectious and non-infectious disease is conducive to clinical physicians not only on making decisions rapidly concerning the prescription of suitable antibiotics but also on further analysis of the final diagnosis.In order to develop and validate a diagnostic tool to efficiently distinguish the etiologies of adult FUO patients as infectious or non-infectious disease,FUO patients from the departments of infectious disease and internal medicine in three Chinese tertiary hospitals were enrolled retrospectively and prospectively.By using polynomial logistic regression analysis,the diagnostic formula and the associated scoring system were developed.The variables included in this diagnostic formula were from clinical evaluations and common laboratory examinations.The proposed tool could discriminate infectious and noninfectious causes of FUO with an area under receiver operating characteristic curve (AUC) of 0.83,sensitivity of 0.80 and specificity of 0.75.This diagnosis tool could predict the infectious and non-infectious causes of FUO in the validation cohort with an AUC of 0.79,sensitivity of 0.79 and specificity of 0.70.The results suggested that this diagnostic tool could be a reliable tool to discriminate between infectious and non-infectious causes of FUO.
文摘The present study aimed to establish a list of parameters indicative of pathogen invasion and develop a predictive model to distinguish the etiologies of fever of unknown origin (FUO) into infectious and non-infectious causes.From January 2014 to September 2017,431 patients with FUO were prospectively enrolled in the study population.This study established a list of 26 variables from the following 4aspects:host factors,epidemiological factors,behavioral factors,and iatrogenic factors.Predefined predicted variables were included in a multivariate logistic regression analysis to develop a predictive model.The predictive model and the corresponding scoring system were developed using data from the confirmed diagnoses and 9 variables were eventually identified.These factors were incorporated into the predictive model.This model discriminated between infectious and non-infectious causes of FUO with an AUC of 0.72,sensitivity of 0.71, and specificity of 0.63.The predictive model and corresponding scoring system based on factors concerning pathogen invasion appear to be reliable screening tools to discriminate between infectious and non-infectious causes of FUO.
基金Supported by the Institute for Maternal and Child Health IRCCS Burlo Garofolo,No.RC36/11
文摘AIM To describe the frequency and clinical characteristics of patients with undifferentiated periodic fever(UPF) and to investigate whether a clinical classification of UPF based on the PRINTO-Eurofever score can help predicting the response to treatment and the outcome at follow-up.METHODS Clinical and therapeutic information of patients with recurrent fever who presented at a single pediatric rheumatology center from January 2006 through April 2016 were retrospectively collected. Patients with a clinical suspicion of hereditary periodic fever(HPF) syndrome and patients with clinical picture of periodic fever, aphthae, pharingitis, adenitis(PFAPA) who were refractory to tonsillectomy underwent molecular analysis of five HPF-related genes: MEFV(NM_000243.2), MVK(NM_000431.3), TNFRSF1 A(NM_001065.3), NLRP3(NM_001079821.2), NLRP12(NM_001277126.1). All patients who had a negative genetic result were defined as UPF and further investigated. PRINTO-Eurofever score for clinical diagnosis of HPF was calculated in all cases. RESULTS Of the 221 patients evaluated for periodic fever, twelve subjects with a clinical picture of PFAPA who were refractory to tonsillectomy and 22 subjects with a clinical suspicion of HPF underwent genetic analysis. Twenty-three patients(10.4%) resulted negative and were classified as UPF. The median age at presentation of patients with UPF was 9.5 mo(IQR 4-24). Patients with UPF had a higher frequency of aphthae(52.2% vs 0%, P = 0.0026) and musculoskeletal pain(65.2% vs 18.2%, P = 0.0255) than patients with genetic confirmed HPF. Also, patients with UPF had a higher frequency of aphthous stomatitis(52.2% vs 10.7%, P < 0.0001), musculoskeletal pain(65.2% vs 8,0%, P < 0.0001), and abdominal pain(52.2% vs 4.8%, P < 0.0001) and a lower frequency of pharyngitis(56.6% vs 81.3%, P = 0.0127) compared with typical PFAPA in the same cohort. Twenty-one of 23 patients with UPF(91.3%) received steroids, being effective in 16; 13(56.2%) were given colchicine, which was effective in 6. Symptoms resolution occurred in 2 patients with UPF at last follow-up. Classification according to the PRINTOEurofever score did not correlate with treatment response and prognosis. CONCLUSION UPF is not a rare diagnosis among patients with periodic fever. Clinical presentation place UPF half way on a clinical spectrum between PFAPA and HPF. The PRINTOEurofever score is not useful to predict clinical outcome and treatment response in these patients.
基金the National Natural Science Foundation of China:to Explore the Antipyretic Effects and Mechanism of the“Reducing Fever Six Methods”Technique on Infant Rabbits with Fever from the Peripheral TLR4/NF-kB Signaling Pathway to the Central Positive and Negative Mediators(No.81873392)。
文摘OBJECTIVE:To investigate the effect of Tuina on the plasma metabolites of lipopolysaccharide-induced febrile in infant rabbits.METHODS:Twenty-four infant New Zealand rabbits were selected and randomly divided into three groups:saline,model,and Tuina.The fever model was established by injecting LPS intravenously through the ear margin vein in the model group and Tuina group,respectively.The modeling was considered successful when the anal temperature increased by 0.5℃or above within 1 h.In the Tuina group,six Tuina techniques(i.e.,opening Tianmen/the heaven gate,pushing Kangong/the superciliary arch,kneading Taiyang and the prominent bone behind the ears,clearing Tianheshui,spine pinching)that alleviate fever were performed on the young rabbits 1 h after the modeling,whereas the model and saline groups were not given Tuina treatment,with the real-time anal temperature monitored during the experiment.The plasma was taken 3 h after the modeling for liquid chromatography-mass spectrometry(LC-MS)untargeted metabolomics study.RESULTS:Our results showed a fever-reducing effects of Tuina therapy on lipopolysaccharide-induced fever in young rabbits,as indicated by a significantly lower anal temperature,maximum rise in body temperature,and body response index at 2 and 3 h after modeling in the Tuina group compared to the model group,with reductions in the PGE2 expression observed in the blood and hypothalamus.The differential metabolites including riboflavin,nicotinamide N-oxide,porphobilinogen,5-hydroxyindoleacetic acid,gamma-aminobutyric acid,and lysoPC(16:1(9Z)/0:0)were found following the Tuina intervention.Tuina primarily involves glycine-serinethreonine,arginine-proline,porphyrin-chlorophyll,pyrimidine,primary bile acid biosynthesis,and cyanoamino acid metabolic pathways.CONCLUSION:Tuina therapy has proven to be effective in reducing body temperature and down-regulating PGE2 expression in LPS-induced febrile young rabbits,with its mechanism of fever-reducing action possibly associated with the changes in plasma metabolites and metabolic pathways.