scholarly journals First report on molecular prevalence and identification of Anaplasma platys in dogs in Khon Kaen, Thailand

2021 ◽  
pp. 2613-2619
Author(s):  
Biethee Rani Sarker ◽  
Thongphet Mitpasa ◽  
Arayaporn Macotpet ◽  
Pattara-Anong Bupata ◽  
Somboon Sangmaneedet ◽  
...  
Keyword(s):  
Risk Factors ◽  
Platelet Count ◽  
Dna Sequencing ◽  
Similarity Index ◽  
Rhipicephalus Sanguineus ◽  
Severe Thrombocytopenia ◽  
Anaplasma Platys ◽  
Related Factors ◽  
Nested Polymerase Chain Reaction ◽  
Khon Kaen

Background and Aim: Anaplasma platys is a blood parasite that infects platelets, causing thrombocytopenia. Rhipicephalus sanguineus ticks are believed to transmit A. platys. To identify A. platys, nested polymerase chain reaction (PCR) has proven to be an effective diagnostic tool. In this study, the molecular prevalence of A. platys infection in dogs was investigated for the 1st time in the Khon Kaen region of Thailand. The association between risk factors and A. platys infection was also evaluated. Materials and Methods: A total of 130 blood samples were collected from dogs in Khon Kaen, Thailand. DNA from the samples was extracted and nested PCR was applied for molecular analysis. Platelet count and packed cell volume (PCV) levels were measured. Platelet counts were categorized into four grades: Non-thrombocytopenia (platelets >200,000 cells/μL), mild thrombocytopenia (platelets 150,000-200,000 cells/μL), moderate thrombocytopenia (platelets 100,000-150,000 cells/μL), and severe thrombocytopenia (platelets <100,000 cells/μL). Four categories for PCV levels of >37%, 30-37%, 20-29%, and <20% were defined as no anemia, mild anemia, moderate anemia, and severe anemia, respectively. DNA sequencing was analyzed using BTSeq™ (Barcode-Tagged Sequencing; CELEMICS, Seoul, South Korea) for similarity index. Results: Among the 130 samples, 9 (6.9%) were positive for A. platys infection. There was an association between low platelet count and infection (p<0.05). PCV level was also associated with A. platys infection (p<0.05). DNA sequencing results of the nine positive samples showed similarity to known sequences of A. platys with 99.36-100% nucleotide identity. These results suggested low genetic diversity in A. platys infecting dogs in the Khon Kaen area. Conclusion: By amplifying 16S rRNA, A. platys infection was detected in the blood of Thai dogs. Further work should be performed to identify risk factors potentially associated with A. platys infection in dogs in Khon Kaen. Other related factors should also be considered, such as location and breeding, as well as the environmental characteristics of each locality. In addition, sampling a larger number of animals may reveal predictors for the positivity of A. platys in dogs in this region.

A Risk Model for Thrombocytopenia Requiring Platelet Transfusion After Cytotoxic Chemotherapy

Blood ◽  
1998 ◽  
Vol 92 (2) ◽  
pp. 405-410 ◽  
Author(s):  
J.Y. Blay ◽  
A. Le Cesne ◽  
C. Mermet ◽  
C. Maugard ◽  
A. Ravaud ◽  
...  
Keyword(s):  
Risk Factors ◽  
Platelet Count ◽  
High Risk ◽  
Risk Model ◽  
Univariate Analysis ◽  
Cytotoxic Chemotherapy ◽  
Phase Iii ◽  
Severe Thrombocytopenia ◽  
Increased Risk ◽  
Platelet Transfusions

Abstract Severe thrombocytopenia is a rare but life-threatening side effect of cytotoxic chemotherapy for which risk factors are not well known. Our objective was to delineate a risk model for chemotherapy-induced thrombocytopenia requiring platelet transfusions in cancer patients. Univariate and multivariate analysis of risk factors for chemotherapy-induced thrombocytopenia requiring platelet transfusions were performed on the cohort of the 1,051 patients (CLB 1996) treated with chemotherapy in the Department of Medicine of the Centre Léon Bérard (CLB) in 1996. In univariate analysis, performance status (PS) greater than 1, platelet count less than 150,000/μL at day 1 (d1) before the initiation of chemotherapy, d1 lymphocyte count ≤700/μL, d1 polymorphonuclear leukocyte count less than 1,500/μL, and the type of chemotherapy (high risk v others) were significantly associated (P &lt; .01) with an increased risk of severe thrombocytopenia requiring platelet transfusions. Using logistic regression, d1 platelet count less than 150,000/μL (odds ratio [OR], 4.3; 95% confidence interval [CI], 1.9 to 9.6), d1 lymphocyte counts ≤700/μL (OR, 3.37; 95% CI, 1.77 to 6.4), the type of chemotherapy (OR, 3.38; 95% CI, 1.77 to 6.4), and PS greater than 1 (OR, 2.23; 95% CI, 1.22 to 4.1) were identified as independent risk factors for platelet transfusions. The observed incidences of platelet transfusions were 45%, 13%, 7%, and 1.5% for patients with ≥3, 2, 1, or 0 risk factors, respectively. This model was then tested in 3 groups of patients treated with chemotherapy used as validation samples: (1) the series of 340 patients treated in the CLB in the first 6 months of 1997, (2) the prospective multicentric cohort of 321 patients of the ELYPSE 1 study, and (3) the series of 149 patients with non-Hodgkin's lymphoma treated in the CLB within prospective phase III trials (1987 to 1995). In these 3 groups, the observed incidences of platelet transfusions in the above-defined risk groups did not differ significantly (P &gt; .1) from those calculated in the model. This risk index could be useful to identify patients at high risk for chemotherapy-induced thrombocytopenia requiring platelet transfusions.

scholarly journals Risk Factors of Hospital-acquired Thrombocytopenia in Toxicological Intensive Care Unit

2020 ◽  
Vol 10 (3) ◽  
pp. 32256-32256
Author(s):  
Haleh Talaie ◽  
◽  
Sayed Masoud Hosseini ◽  
Maryam Nazari ◽  
Mehdi Salavati Esfahani ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intensive Care ◽  
Platelet Count ◽  
Antihypertensive Drugs ◽  
International Normalized Ratio ◽  
Severe Thrombocytopenia ◽  
Old Patients ◽  
Platelet Counts ◽  
Hospital Acquired ◽  
The Impact

Background: Platelet count is a readily available biomarker predicting disease severity and risk of mortality in the intensive care units (ICU). This study aims to describe the frequency, to assess the risk factors, and to evaluate the impact of thrombocytopenia on patient outcomes in a Toxicological ICU (TICU).Methods: In this prospective observational Cohort study, we enrolled 184 patients admitted to our TICU from October 1st, 2019, to August 23rd, 2020. Mild/moderate and severe thrombocytopenia were defined as at least one platelet counts less than 150×103/μL and 50×103/μL during the ICU stay, respectively.Results: Of 184 enrolled patients, 45.7% had mild to moderate thrombocytopenia and 5.4% had severe thrombocytopenia. Old age (OR: 1.042, 95%CI: 1.01-1.075, P=0.01), male gender (OR: 4.348, 95%CI: 1.33-14.22, P=0.015), increased international normalized ratio (INR) levels (OR: 3.72, 95%CI: 1.15-112, P=0.028), and administration of some medications including heparin (OR: 3.553, 95%CI: 1.11-11.36, P=0.033), antihypertensive drugs (OR: 2.841, 95%CI: 1.081-7.471, P=0.034), linezolid (OR: 13.46, 95%CI: 4.75-38.13, P<0.001), erythromycin (OR: 19.58, 95%CI: 3.23-118.86, P=0.001), and colistin (OR: 10.29, 95% CI 1.44-73.69, P=0.02) were the risk factors of hospital-acquired thrombocytopenia. The outcomes of patients with normal platelet count were significantly better than those who developed thrombocytopenia (P<0.001).Conclusion: We found that thrombocytopenia could develop in almost 50% of patients admitted to TICU, which is associated with poor prognosis. Additionally, the platelet counts should be closely monitored to administer some medications (heparin, antihypertensive drug, and linezolid), especially in old patients.

scholarly journals Clinical profile and outcome of neonatal thrombocytopenia in a tertiary care hospital

2019 ◽  
Vol 6 (3) ◽  
pp. 1344
Author(s):  
Sumarth Lal Meena ◽  
Kanwar Singh ◽  
Sanjiv Jain ◽  
Anil Jain ◽  
B. S. Karnawat
Keyword(s):  
Risk Factors ◽  
Platelet Count ◽  
Tertiary Care ◽  
Clinical Profile ◽  
Severe Thrombocytopenia ◽  
Care Hospital ◽  
Transfusion Therapy ◽  
Common Cause ◽  
Maternal Risk ◽  
Neonatal Thrombocytopenia

Background: Thrombocytopenia (platelet count <1,50,000/µL) is one of the most common haematological problems in neonatal intensive care units. In contrast, only 2% of the normal neonates are thrombocytopenic at birth with severe thrombocytopenia (platelet count <50,000/µL) occurring in less than 3/1000 term infants. Multiple disease processes can cause thrombocytopenia in neonates. The important causes of thrombocytopenia in neonates are sepsis, birth asphyxia, prematurity, intra-uterine growth retardation, hyperbilirubinemia, respiratory distress syndrome, meconium aspiration syndrome and low birth weight. Apart from platelet count, bleeding manifestations depend on underlying ailments. The aims and objective were to study the clinical profile, etiology and outcome of neonatal thrombocytopenia in a tertiary care hospital.Methods: Prospective study involving 100 neonates with or developed neonatal thrombocytopenia in NICU.Results: In present study, 100 new-borns with thrombocytopenia 46% were mild, 35% were moderate and 19% were severe thrombocytopenia. 51 (51%) had early onset neonatal thrombocytopenia and 49 (49%) babies had late onset neonatal thrombocytopenia. Anaemia was the dominant maternal predisposing risk factor. Sepsis was the most common cause of neonatal thrombocytopenia. Most common symptom was apnoea. Sepsis, RDS and NEC had significantly contributed to mortality. Most common cause of death was sepsis followed by RDS and NEC.Conclusions: Neonatal thrombocytopenia is a treatable and reversible condition. Hence, it is important to identify neonates at risk and initiate transfusion therapy to prevent severe bleeding and potentially significant morbidity. Anaemia and PROM were the commonest maternal risk factors. Therefore, author recommended that babies born to mothers with these risk factors should be closely monitored for thrombocytopenia.

A Risk Model for Thrombocytopenia Requiring Platelet Transfusion After Cytotoxic Chemotherapy

Blood ◽  
1998 ◽  
Vol 92 (2) ◽  
pp. 405-410
Author(s):  
J.Y. Blay ◽  
A. Le Cesne ◽  
C. Mermet ◽  
C. Maugard ◽  
A. Ravaud ◽  
...  
Keyword(s):  
Risk Factors ◽  
Platelet Count ◽  
High Risk ◽  
Risk Model ◽  
Univariate Analysis ◽  
Cytotoxic Chemotherapy ◽  
Phase Iii ◽  
Severe Thrombocytopenia ◽  
Increased Risk ◽  
Platelet Transfusions

Severe thrombocytopenia is a rare but life-threatening side effect of cytotoxic chemotherapy for which risk factors are not well known. Our objective was to delineate a risk model for chemotherapy-induced thrombocytopenia requiring platelet transfusions in cancer patients. Univariate and multivariate analysis of risk factors for chemotherapy-induced thrombocytopenia requiring platelet transfusions were performed on the cohort of the 1,051 patients (CLB 1996) treated with chemotherapy in the Department of Medicine of the Centre Léon Bérard (CLB) in 1996. In univariate analysis, performance status (PS) greater than 1, platelet count less than 150,000/μL at day 1 (d1) before the initiation of chemotherapy, d1 lymphocyte count ≤700/μL, d1 polymorphonuclear leukocyte count less than 1,500/μL, and the type of chemotherapy (high risk v others) were significantly associated (P < .01) with an increased risk of severe thrombocytopenia requiring platelet transfusions. Using logistic regression, d1 platelet count less than 150,000/μL (odds ratio [OR], 4.3; 95% confidence interval [CI], 1.9 to 9.6), d1 lymphocyte counts ≤700/μL (OR, 3.37; 95% CI, 1.77 to 6.4), the type of chemotherapy (OR, 3.38; 95% CI, 1.77 to 6.4), and PS greater than 1 (OR, 2.23; 95% CI, 1.22 to 4.1) were identified as independent risk factors for platelet transfusions. The observed incidences of platelet transfusions were 45%, 13%, 7%, and 1.5% for patients with ≥3, 2, 1, or 0 risk factors, respectively. This model was then tested in 3 groups of patients treated with chemotherapy used as validation samples: (1) the series of 340 patients treated in the CLB in the first 6 months of 1997, (2) the prospective multicentric cohort of 321 patients of the ELYPSE 1 study, and (3) the series of 149 patients with non-Hodgkin's lymphoma treated in the CLB within prospective phase III trials (1987 to 1995). In these 3 groups, the observed incidences of platelet transfusions in the above-defined risk groups did not differ significantly (P > .1) from those calculated in the model. This risk index could be useful to identify patients at high risk for chemotherapy-induced thrombocytopenia requiring platelet transfusions.

scholarly journals Molecular diagnosis and risk factors of canine ehrlichiosis in the municipality of Itabuna-Bahia, Brazil

2020 ◽  
Vol 41 (3) ◽  
pp. 897
Author(s):  
Jeane Martinha dos Anjos Cordeiro ◽  
Paula Elisa Brandão Guedes ◽  
Alexandre Dias Munhoz ◽  
Fabiana Lessa Silva
Keyword(s):  
Risk Factors ◽  
Nested Pcr ◽  
Clinical Signs ◽  
Rhipicephalus Sanguineus ◽  
Nested Polymerase Chain Reaction ◽  
Molecular Tests ◽  
Canine Ehrlichiosis ◽  
Non Governmental Organizations ◽  
Canine Monocytic Ehrlichiosis ◽  
The City

Ehrlichiosis is an emerging zoonosis worldwide and has had several adverse effects on public health. Canine monocytic ehrlichiosis (CME), caused by Ehrlichia canis, has the tick Rhipicephalus sanguineus as the vector. The main clinical signs in affected dogs are fever, apathy, anorexia, weight loss, and neurological signs. The diagnosis is made through the association of clinical signs with parasitological, serological, and molecular tests. The aim of this study was to evaluate the occurrence of E. canis infection in dogs from the city of Itabuna-Bahia, as well as to identify the risk factors related to infection. For this, 405 dogs from the Center for Zoonoses Control (CCZ), non-governmental organizations (NGOs), and dogs domiciled and semi-domiciled in the city of Itabuna, southern Bahia, were evaluated. After initial physical evaluation of the dogs, blood samples were collected by venipuncture for subsequent DNA extraction and E. canis testing using the nested Polymerase Chain Reaction (nested-PCR) technique. In addition, an epidemiological questionnaire that included questions related to the animals was administered to the dog owners to identify the risk factors for exposure to the etiological agent and to the vector. Approximately 17% of the dogs in the municipality of Itabuna-Bahia tested positive for E. canis by nested-PCR, a result higher than that found in other studies conducted in the same municipality. Among the factors associated with E. canis infection, contact with other dogs (p = 0.0226) was an important factor for the dissemination of CME, since dogs are reported to be reservoirs of E. canis. Male dogs (p = 0.0016) presented lower risk for E. canis infection. Other studies, however, describe no association between animal gender and infection by E. canis. Preventive measures to reduce exposure to the vector of ehrlichiosis are necessary.

scholarly journals Investigation of Ehrlichia spp., Anaplasma spp. and Rickettsia spp. in ectoparasites collected from domestic animals, Rio de Janeiro State, Brazil

2017 ◽  
Vol 22 ◽  
pp. 30 ◽  
Author(s):  
Thayssa Keren Da Silva ◽  
Carolina Moreira Blanco ◽  
Maria Ogrzewalska ◽  
Mariana Barbosa de Souza ◽  
Jairo Dias Barreira ◽  
...  
Keyword(s):  
Dna Sequencing ◽  
Rio De Janeiro ◽  
Rhipicephalus Sanguineus ◽  
Domestic Animals ◽  
Southern Brazil ◽  
Anaplasma Platys ◽  
Rickettsia Felis ◽  
Specific Pcr ◽  
Ctenocephalides Canis ◽  
Janeiro State

The aim of this study was to determine the occurrence of emerging arthropod-borne pathogens Anaplasma, Ehrlichia and Rickettsia infection in ticks (Acari: Ixodidae) and fleas (Insecta: Siphonaptera) collected from dogs and horses within municipality of Itaboraí, Rio de Janeiro State, Southern Brazil. Samples from 280 ticks and two fleas were subjected to family or/and genus specific PCR for Anaplasmataceae, Ehrlichia and Rickettsia, followed by DNA sequencing to ensure pathogen identity. In ticks Rhipicephalus sanguineus collected from dogs the DNA of Anaplasma platys and Ehrlichia canis was detected in 6.8% and 2.2% samples respectively. In two R. sanguineus confection with two pathogens was observed. In Dermacentor nitens ticks, collected from horses Francisella-like endosymbiont was found in 42.8% samples. DNA of Rickettsia felis and Wolbachia pi-petens was detected in fleas Ctenocephalides canis fleas. No DNA of Rickettsia was found in tested ticks. The findings contribute to our knowledge of tick-borne bacteria, ticks and endosymbionts distribution in Brazil.

Critical Review on Suicide Among Nurses

Crisis ◽  
2015 ◽  
Vol 36 (2) ◽  
pp. 91-101 ◽  
Author(s):  
Marie Alderson ◽  
Xavier Parent-Rocheleau ◽  
Brian Mishara
Keyword(s):  
Risk Factors ◽  
Literature Review ◽  
High Stress ◽  
Related Factors ◽  
Work Settings ◽  
Work Related ◽  
High Prevalence ◽  
Full Text Review ◽  
The Subject ◽  
Psychiatric Problems

Background: Research shows that there is a high prevalence of suicide among nurses. Despite this, it has been 15 years since the last literature review on the subject was published. Aim: The aim of this article is to review the knowledge currently available on the risk of suicide among nurses and on contributory risk factors. Method: A search was conducted in electronic databases using keywords related to prevalence and risk factors of suicide among nurses. The abstracts were analyzed by reviewers according to selection criteria. Selected articles were submitted to a full-text review and their key elements were summarized. Results: Only nine articles were eligible for inclusion in this review. The results of this literature review highlight both the troubling high prevalence of suicide among nurses as well as the persistent lack of studies that examine this issue. Conclusion: Considering that the effects of several factors related to nurses' work and work settings are associated with high stress, distress, or psychiatric problems, we highlight the relevance of investigating work-related factors associated with nurses' risk of suicide. Several avenues for future studies are discussed as well as possible research methods.

scholarly journals The prevalence and risk factors for depressive symptoms in frontline nurses under COVID-19 pandemic based on a large cross-sectional study using the propensity score-matched method

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Hongyan Wang ◽  
Xiaoling Dai ◽  
Zichuan Yao ◽  
Xianqing Zhu ◽  
Yunzhong Jiang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Depressive Symptoms ◽  
Sleep Quality ◽  
Psychological Capital ◽  
Cross Sectional Study ◽  
Poor Sleep ◽  
Sectional Study ◽  
Poor Sleep Quality ◽  
Related Factors ◽  
Cross Sectional

Abstract Introduction To explore the prevalence of depressive symptoms and the associated risk factors in frontline nurses under COVID-19 pandemic. Methods This cross-sectional study was conducted from February 20, 2020 to March 20, 2020 and involved 562 frontline nurses. The effective response rate was 87.68%. After propensity score matched, there were 498 participants left. Extensive characteristics, including demographics, dietary habits, life-related factors, work-related factors, and psychological factors were collected based on a self-reported questionnaire. Specific scales measured the levels of sleep quality, physical activity, depressive symptoms, perceived organization support and psychological capital. Adjusted odds ratios and 95% confidence intervals were determined by binary paired logistic regression. Results Of the nurses enrolled in the study, 50.90% had depressive symptoms. Three independent risk factors were identified: poor sleep quality (OR = 1.608, 95% CI: 1.384–1.896), lower optimism of psychological capital (OR = 0.879, 95% CI: 0.805–0.960) and no visiting friend constantly (OR = 0.513, 95% CI: 0.286–0.920). Conclusions This study revealed a considerable high prevalence of depressive symptoms in frontline nurses during the COVID-19 outbreak, and identified three risk factors, which were poor sleep quality, lower optimism of psychological capital, and no visiting friend constantly. Protecting mental health of nurses is important for COVID-19 pandemic control and their wellbeing. These findings enrich the existing theoretical model of depression and demonstrated a critical need for additional strategies that could address the mental health in frontline nurses for policymakers.

scholarly journals Current management of cancer-associated venous thromboembolism in patients with thrombocytopenia: a retrospective cohort study

2021 ◽  
Author(s):  
Alessandro Squizzato ◽  
Silvia Galliazzo ◽  
Elena Rancan ◽  
Marina Di Pilla ◽  
Giorgia Micucci ◽  
...  
Keyword(s):  
Platelet Count ◽  
Venous Thromboembolism ◽  
Cancer Patients ◽  
Cerebral Metastasis ◽  
Bleeding Complications ◽  
Severe Thrombocytopenia ◽  
Regression Analyses ◽  
Multivariate Logistic Regression ◽  
Current Management

AbstractOptimal management of venous thromboembolism (VTE) in cancer patients with thrombocytopenia is uncertain. We described current management and clinical outcomes of these patients. We retrospectively included a cohort of cancer patients with acute VTE and concomitant mild (platelet count 100,000–150,000/mm3), moderate (50,000–99,000/mm3), or severe thrombocytopenia (< 50,000/mm3). Univariate and multivariate logistic regression analyses explored the association between different therapeutic strategies and thrombocytopenia. The incidence of VTE and bleeding complications was collected at a 3-month follow-up. A total of 194 patients of whom 122 (62.89%) had mild, 51 (26.29%) moderate, and 22 (11.34%) severe thrombocytopenia were involved. At VTE diagnosis, a full therapeutic dose of LMWH was administered in 79.3, 62.8 and 4.6% of patients, respectively. Moderate (OR 0.30; 95% CI 0.12–0.75), severe thrombocytopenia (OR 0.01; 95% CI 0.00–0.08), and the presence of cerebral metastasis (OR 0.06; 95% CI 0.01–0.30) were independently associated with the prescription of subtherapeutic LMWH doses. Symptomatic VTE (OR 4.46; 95% CI 1.85–10.80) and pulmonary embolism (OR 2.76; 95% CI 1.09–6.94) were associated with the prescription of full therapeutic LMWH doses. Three-month incidence of VTE was 3.9% (95% CI 1.3–10.1), 8.5% (95% CI 2.8–21.3), 0% (95% CI 0.0–20.0) in patients with mild, moderate, and severe thrombocytopenia, respectively. The corresponding values for major bleeding and mortality were 1.9% (95% CI 0.3–7.4), 6.4% (95% CI 1.7–18.6), 0% (95% CI 0.0–20.0) and 9.6% (95% CI 5.0–17.4), 48.2% (95% CI 16.1–42.9), 20% (95% CI 6.6–44.3). In the absence of sound evidence, anticoagulation strategy of VTE in cancer patients with thrombocytopenia was tailored on an individual basis, taking into account not only the platelet count but also VTE presentation and the presence of cerebral metastasis.

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