Incidence Of Thrombocytopenia Research Articles

Linezolid vs Vancomycin in Induced Thrombocytopenia.

IntroductionLinezolid and vancomycin have an important place among therapeutic antimicrobial options for multidrug-resistant gram-positive infections. Thrombocytopenia is an adverse effect reported with both and can lead to treatment interruption. Our objective was to compare the incidence of thrombocytopenia in patients receiving linezolid or vancomycin and to identify risk factors associated with thrombocytopenia.MethodsThis was a retrospective observational cohort study that involved patients who received linezolid (intravenously or orally) or vancomycin (intravenously) at a tertiary care hospital, between January 2016 and October 2019, for a minimum of 5 days and in whom platelet values were measured during treatment. Data on platelet count were collected during therapy in each group to identify the incidence of thrombocytopenia.ResultsA total of 453 patients fulfilled the study criteria; 241 patients received linezolid and 212 patients vancomycin. The main logistic regression analysis revealed that patients in the linezolid group had approximately a four times higher incidence of thrombocytopenia (OR 4.39; 95% CI 2.38–8.08) compared to vancomycin. An increased incidence of thrombocytopenia was associated with advanced age, baseline platelet count and vasopressor use.ConclusionClinicians considering vancomycin or linezolid for a susceptible infection should weigh the higher risk of thrombocytopenia that may be observed with linezolid vs. vancomycin in their decision.

Myelosuppression Rates with Administration of Nafcillin with and without Rifampin in Pediatric Patients.

Myelosuppression, a potential adverse reaction of nafcillin and rifampin, is rarely documented in pediatric populations. The objective of this study is to describe the incidence of myelosuppression in pediatric patients receiving nafcillin or a combination of nafcillin and rifampin therapy. This retrospective chart review identified patients who received nafcillin alone or in combination with rifampin. The primary endpoint was the incidence of myelosuppression as a composite outcome. The secondary endpoints were the incidence of thrombocytopenia, anemia, and neutropenia individually. Of 199 patients in this study, 98 received nafcillin alone. There was no difference in the rates of myelosuppression between patients receiving nafcillin alone or in combination with rifampin (p = 0.0763), and the use of combination therapy did not affect the development of neutropenia (p = 0.2764) or thrombocytopenia (p = 0.1672). Patients receiving combination therapy were more likely to be anemic at the end of therapy (odds ratio [OR] = 2.333, 95% confidence interval [CI] 0.999, 5.446). Similarly, patients receiving longer durations of nafcillin were more likely to experience anemia (OR 1.774, 95% CI 1.382, 2.370) and neutropenia (OR 1.256, 95% CI 1.024, 1.540). The use of nafcillin does not significantly affect myelosuppression in pediatric patients, although longer durations of therapy may result in increased rates of neutropenia and anemia. Combination therapy with rifampin may result in increased rates of neutropenia.

Toxicity of concurrent and adjuvant temozolomide in patients with glioblastoma multiforme (GBM).

e14037 Background: (MGMT) promotor is prognostic and predictive of temozolomide (TMZ) benefit in newly diagnosed GBM. It has been suggested that MGMT methylation is associated with TMZ toxicity in some cancers such as melanoma but is not clearly defined in GBM. Methods: To investigate this, a retrospective electronic chart review of patients (pts) with resected GBM in a tertiary neurosurgical referral center from 1 July 2017 – 31 Dec 2020 was conducted. Hematological toxicities during TMZ with RT (concurrent) and subsequent TMZ (adjuvant) were assessed and graded by CTCAE V5.0. Toxicity was compared by MGMT methylation status. Results: In a 3.5 year period, 417 GBM resections were performed. Of these, 186 (45%) patients received at least 1 dose of TMZ in our institution: 180 pts received concurrent TMZ, 6 pts received adjuvant only. MGMT was methylated, unmethylated and unknown in 72, 97 and 17 pts respectively. In the concurrent and adjuvant phases respectively, thrombocytopenia incidence was 20%(N=14) and 52%(N=25) in the methylated group and 15%(N=15) and 51%(N=37) in the unmethylated group. In the adjuvant phase, incidence of ≥ grade 3 thrombocytopenia was 8%(N=4), in the methylated patients and 9%(N=7) for those unmethylated. Neutropenia incidence was low in the concurrent phase, however in the adjuvant phase was 29%(N=14) in the methylated group and 23%(N=17) in the unmethylated group. ≥G3 incidence was 10%(N=5) and 3%(N=2) respectively. Conclusions: In this retrospective study, a higher incidence of hematological toxicity was not seen in pts with MGMT methylated tumors. Methylation of the DNA repair enzyme O(6)-methylguanine-DNA methyltransferase.[Table: see text]

Associations of Thrombocytopenia, Transaminase Elevations, and Transfusion With Laboratory Coagulation Tests in Women With Preeclampsia: A Cross-sectional Study

(Int J Obstet Anesth. 2021;46:102972) Preeclampsia is associated with increased incidence of thrombocytopenia (TCP) and coagulopathy, causing concern about obstetric hemorrhage [postpartum hemorrhage (PPH)] and spinal-epidural hematoma with neuraxial procedures. In the absence of other contraindications, a patient with a platelet count >70×109/L and normal platelet function should be a candidate for a neuraxial procedure. Coagulation testing is not routine in preeclamptic women. Previous data and guidelines on the relationship between coagulation testing and risk of complications from neuraxial procedures are inconsistent. This study aimed to better understand the use of coagulation testing in patients with preeclampsia.

Higher incidence of thrombocytopenia during obinutuzumab plus bendamustine therapy for untreated follicular lymphoma: a retrospective analysis by the Okayama Hematology Study Group.

Progression-free survival in patients with untreated follicular lymphoma (FL) has significantly improved with obinutuzumab plus chemotherapy followed by obinutuzumab maintenance, compared with rituximab plus chemotherapy. However, the survival outcome and adverse event profile in Japanese FL patients treated with obinutuzumab plus bendamustine (GB) therapy are not well investigated. Recently, we encountered some cases of grade 3-4 thrombocytopenia during GB therapy in patients with FL. This retrospective multicenter survey aimed to identify the characteristics of patients who received GB therapy and developed thrombocytopenia. A total of 54 patients with FL treated by GB therapy between August 2018 and December 2020 were investigated. After a median follow-up of 12.6months, thrombocytopenia of any grade was observed in 48 (88.9%) patients, including 9 (16.7%) patients with grade 3-4 thrombocytopenia. Notably, although eight of nine patients with grade 3-4 thrombocytopenia were female, no patient characteristics (including gender) were significantly associated with grade 3-4 thrombocytopenia. Importantly, grade 3-4 thrombocytopenia frequently occurred in the first GB therapy cycle, which suggests that platelet count should be monitored carefully in patients who have just started GB therapy.

A prospective observational study on posterior reversible encephalopathy syndrome in COVID-19 eclampsia patients in tertiary care hospital

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is associated with neurological symptoms in one third of COVID-19 patients which is attributed to its hypercoagulable state or its neurotropism which is not yet defined. PRES (Posterior Reversible Encephalopathy Syndrome) is a rare clinico- neuro-radiological entity which can be associated with multiple clinical conditions and was observed frequently with preeclampsia and eclampsia patients. Neuro- imaging is important to diagnose PRES. This study is a prospective observational study in COVID -19 positive eclampsia patients at Gandhi Hospital, Telangana during March 2021-august 2021.Among 55 COVID-19 positive eclampsia patients, 17 had PRES out of which 64.7% had antepartum eclampsia. Seven patients had severe COVID-19 disease out of which five patients required noninvasive ventilation and two patients required invasive ventilation. In my study, PRES was more common among primigravida, common age group 21-25 years. Mean SBP/DBP is 177±12 / 110±6 mm Hg respectively. Incidence of Thrombocytopenia is more in COVID-19 eclampsia patients. COVID -19 related complications are seen in 41.17% whereas eclampsia related maternal complications are seen in 29.4%. There was one maternal death and perinatal mortality was 17.64%.COVID -19 positive eclampsia patients have more predilection to PRES. Diagnosis, treatment of eclampsia in COVID-19 should be evaluated and treated for PRES. Regular antenatal visits and regular bp monitoring can prevent eclampsia and its complications and can reduce maternal morbidity, mortality. Use of anticoagulants and corticosteroids may fasten the recovery rate.

SARS-CoV-2 vaccination in pediatric patients with immune thrombocytopenia.

SARS-CoV-2 vaccination in pediatric patients with immune thrombocytopenia.

Characterization of platelet concentrations and evaluation of risk factors for thrombocytopenia following traumatic injury

Introduction Thrombocytopenia is common in critically ill trauma patients and can lead to potentially broad differentials, including major bleeding, hemodilution, extracorporeal circuit losses, heparin-induced thrombocytopenia, and more. Understanding the normal time course of platelet decline and recovery may delineate thrombocytopenia(HIT) secondary to traumatic injury versus other inciting factors. Methods This retrospective study included trauma patients admitted over a 1-year period. The primary aim was characterizing the effect of trauma on platelet concentration and thrombocytopenia incidence in the first 30 days following injury. Thrombocytopenia was defined as platelet concentration <150 × 109/L. A secondary aim was evaluating significant factors contributing to thrombocytopenia. Results A total of 225 patients were included. Thrombocytopenia occurred in 67.3% of patients, and a platelet decline of 50% or greater occurred in 44%. Decrease in platelet concentration was significant from day 1 to day 4 (mean ± SD, 232 ± 86 vs 142 ± 76 × 109/L; p = .001). Platelets recovered to baseline on day 8 and peaked on day 16. Packed red blood cell or platelet transfusion, continuous renal replacement therapy, and acute liver injury independently predicted a ≥50% platelet decrease. HIT was not diagnosed in any patients. Conclusion Platelet nadir likely occurs approximately 4 days after injury and recovers relatively quickly thereafter. More studies are needed to evaluate the magnitude of effect on thrombocytopenia by factors beyond trauma.

Continuous Versus Intermittent Linezolid Infusion for Critically Ill Patients with Hospital-Acquired and Ventilator-Associated Pneumonia: Efficacy and Safety Challenges.

High variability of linezolid blood concentrations with partial subtherapeutic levels was observed in critically ill patients who received a standard intravenous dose of linezolid, contributing to drug resistance and toxicity. Continuous infusions of linezolid have been suggested as an alternative and provide good serum and alveolar levels without fluctuations in trough concentration. This study aimed to assess the effectiveness and safety of continuous linezolid infusion versus the standard regimen in critically ill patients. A prospective randomized controlled study was conducted on 179 patients with nosocomial pneumonia. Patients were randomized into two groups. The first group received IV linezolid 600 mg twice daily, while the second group received 600 mg IV as a loading dose, followed by a continuous infusion of 1200 mg/day (50 mg/h) for at least 8–10 days. The continuous infusion group showed a higher clinical cure rate than the intermittent infusion group (p = 0.046). Furthermore, efficacy was proven by greater improvement of P/F ratio (p = 0.030) on day 7 of treatment, a lower incidence of developing sepsis after beginning treatment (p = 0.009), and a shorter time to reach clinical cure (p < 0.001). Hematological parameters were also assessed during the treatment to evaluate the safety between the two groups. The incidence of thrombocytopenia was significantly lower in the continuous infusion group than in the intermittent infusion group. In addition, a stepwise logistic regression model revealed that the intermittent infusion of linezolid was significantly associated with thrombocytopenia (OR =4.128; 95% CI = 1.681–10.139; p =0.001). The current study is the first to assess the clinical aspects of continuous infusion of linezolid beyond pharmacokinetic studies. Continuous infusion of linezolid outperforms intermittent delivery in safety and improves clinical effectiveness in critically ill patients with Gram-positive nosocomial pneumonia.

Initial trough concentration may be beneficial in preventing linezolid-induced thrombocytopenia

We assessed whether prospective therapeutic drug monitoring to optimise the therapeutic range could prevent linezolid-induced thrombocytopenia. This prospective interventional study was conducted from September 2017 to October 2020 among 37 adult patients receiving linezolid. Patients were administered one of the following two initial dosages: 600 mg twice or once daily for patients with a creatinine clearance rate of ≥50 or <50 mL/min, respectively. Linezolid dosage adjustment was performed on days 3–5 based on the trough concentration. The serum linezolid levels in 22 and 15 patients were within and above the therapeutic range (2–7 µg/mL), respectively. The incidence of thrombocytopenia was significantly lower among patients whose linezolid levels were within the therapeutic range (4.5%;1/22) than in those whose levels were above the therapeutic range (80%; 12/15). It is important to maintain the linezolid level within the therapeutic range at the first therapeutic drug monitoring to prevent thrombocytopenia.

COVID-19 vaccines and risks of hematological abnormalities: Nested case-control and self-controlled case series study.

Several studies reported hematological abnormalities after vaccination against the coronavirus disease 2019 (COVID‐19). We evaluated the association between COVID‐19 vaccines (CoronaVac and BNT162b2) and hematological abnormalities. We conducted nested case–control and self‐controlled case series analyses using the data from the Hong Kong Hospital Authority and the Department of Health, HKSAR. Outcomes of interest were thrombocytopenia, leukopenia, and neutropenia. Adjusted odds ratios (aORs), incidence rate ratios (IRRs), and 95% confidence intervals (CIs) were estimated using conditional logistic regression. In total, 1 643 419 people received COVID‐19 vaccination (738 609 CoronaVac; 904 810 BNT162b2). We identified 457 and 422 cases after CoronaVac and BNT162b2 vaccination, respectively. For CoronaVac, the incidence of thrombocytopenia, leukopenia, and neutropenia was 2.51, 1.08, and 0.15 per 10 000 doses. For BNT162b2, the corresponding incidence was 1.39, 1.17, and 0.26 per 10 000 doses. The incidence per 10 000 COVID‐19 cases were 1254, 2341, and 884, respectively. We only observed an increased risk of leukopenia following the second dose of BNT162b2 (aOR 1.58, 95% CI 1.24–2.02; day 0–14, IRR 2.21; 95% CI 1.59–3.08). There was no increased risk of any hematological abnormalities after CoronaVac vaccination. We observed an increased risk of leukopenia shortly after the second dose of BNT162b2. However, the incidence was much lower than the incidence following severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infections. There was no association between CoronaVac and hematological abnormalities. The benefits of vaccination against COVID‐19 still outweigh the risk of hematological abnormalities.

Incidence, clinical impact and predictors of thrombocytopenia after transcatheter aortic valve replacement

BackgroundThrombocytopenia is a common, yet poorly understood, complication after transcatheter aortic valve replacement (TAVR). Balloon-expandable transcatheter heart valve has been associated with higher incidence of thrombocytopenia, compared with self-expandable valves. The aim of this study was to analyze the incidence, clinical impact and predictors of acquired thrombocytopenia in patients undergoing TAVR. MethodsWe performed an observational study from consecutive patients with severe aortic stenosis undergoing TAVR (n = 679) in a single center. Association and best cut-off point of platelet decrease with early mortality was analyzed. Patients were classified according to postprocedural percentage decrease in platelet count (PDPC), comparing clinical outcomes and analyzing predictors of platelet decrease. ResultsThe median PDPC was 37.1 [IQR: 27.4–46.9]. PDPC was associated with early mortality (OR: 2.1, 95%IC: 1.7–2.5 for each 10% decrease, AUC:0.81, 95%CI:0.72–0.89) with an optimal cut-off point of 46%. PDPC≥46% and late nadir (≥4 days) were both independent predictors of early mortality (OR: 6.0 [IQR: 2.4–14.9] and OR: 5.1 [IQR: 2.2–11.6], respectively). The combination of both factors (PDPC≥46% and nadir ≥4 day) was associated with higher 2-year mortality (55.7%) compared to an early significant nadir (PDPC≥46% and nadir <4 day, 28.9%) and non-significant nadir (PDPC<46%, 21.0%), p < 0.001. Independent predictors of PDPC≥46% were baseline platelet count, Portico™, Abbott valve, intraprocedural major vascular complication and residual aortic regurgitation ≥grade 2. ConclusionThe platelet count decreased almost 40% after TAVR. Late nadir and PDPC≥46% predicted short-term clinical outcomes. Concomitant late and significant platelet decrease was associated with mid-term mortality.

Fetomaternal outcome in pregnancy with thrombocytopenia: A prospective study from one of the teaching health-care institutes of Ahmedabad, Gujarat

Background: During pregnancy, hemodilution of plasma volume leads to reduction in platelets count by approximately 6–7% during 3rd trimester. Pregnant women with thrombocytopenia have higher risk of bleeding excessively during pregnancy, labor, and puerperium. The present study focuses on fetomaternal outcome among pregnant women having thrombocytopenia. Aims and Objectives: This study aims to study the incidence of thrombocytopenia in pregnancy, to identify various factors responsible for thrombocytopenia in pregnancy, and to evaluate fetomaternal outcome in patients with thrombocytopenia in pregnancy. Materials and Methods: A prospective study was conducted in the department of obstetrics and gynecology at tertiary care center of Ahmedabad. A total of 96 cases of thrombocytopenia in pregnancy were included in the study. Fetomaternal outcome was assessed among the study participants. Results: The incidence of thrombocytopenia in the present study was 0.77%. Obstetric causes (53.12%) accounted for most common cause of thrombocytopenia, followed by gestational thrombocytopenia (27.08%), dengue (10.41%), malaria (4.16%), and immune thrombocytopenia (4.16%). Postpartum hemorrhage (15.62%), eclampsia (14.58%), disseminated intravascular coagulation (11.45%), and abruption (8.33%) were the most common maternal complications. The most common neonatal complication was prematurity (67.7%) followed by intrauterine growth retardation (23.95%) and birth asphyxia (9.3%). Conclusion: Hypertensive disorders of pregnancy including severe preeclampsia, eclampsia, and HELLP syndrome are found to be the most common cause of thrombocytopenia followed by gestational thrombocytopenia and infectious causes. The present study widened the spectrum of the causes for thrombocytopenia in pregnant women. Gestational thrombocytopenia is associated with mild-to-moderate thrombocytopenia and hardly having any complications.

Quantitative Analysis of Thrombocytes in Neonates in a Tertiary Care Centre of Southern India- A Retrospective Study

Introduction: Thrombocytopenia is defined as a platelet count of less than 150×109/L, which is also applicable to newborn infants. It may be a result of increased platelet destruction (immune and non immune), decreased platelet production, and a combination of both or unknown. A platelet count of more than 500×109/L is considered thrombocytosis, classified as primary or essential and secondary or reactive. Abnormal platelet count being quite common, is most often neglected and it can lead to devastating complications if untreated. Aim: To study the incidence of abnormal platelet counts and to determine the risk factors associated with abnormal platelet counts in neonates admitted to the Neonatal Intensive Care Unit (NICU). Materials and Methods: A retrospective analysis of platelet count of all neonates admitted to a tertiary NICU of RL Jalappa Hospital, Tamaka, Karnataka, India, between July 2020 and June 2021 was done to determine the incidence and risk factors associated with abnormal platelet count (thrombocytopenia and thrombocytosis). Data of all the neonates were collected retrospectively from July 2021 to August 2021 and analysed. A total of 562 neonates were included in the study. Categorical data was taken and expressed in the form of frequencies and percentages. Data were entered as frequencies using Microsoft excel version 2203 and analysed using Statistical Package for Social Sciences (SPSS) software version 22.0. Chi-square and Fischer’s exact test were used to determining the significance of the data. The p-value &lt;0.05 was considered statistically significant. Results: Out of 629 neonates admitted, 562 neonates were included in the study. Total 209 neonates had thrombocytopenia, with early thrombocytopenia being in 94 (45%) and late being in 115 (55%). Thrombocytosis was seen in only 15 neonates where 7 (46.6%) had early, and 8 (53.3%) had late thrombocytosis. The most common risk factor associated with both cases was sepsis. Placental insufficiency had a statistically significant association with thrombocytopenia (p&lt;0.001**). Term babies had a higher incidence of thrombocytopenia and thrombocytosis, and the association with thrombocytopenia was statistically significant (p=0.043*). Conclusion: Based on the present study, it can be concluded that abnormal platelet count is quite a common finding in sick neonates. Thrombocytopenia is more common than thrombocytosis. The most common risk factor is sepsis, it should not be neglected, and appropriate treatment should be initiated once an abnormal platelet count is detected in neonates.

Nab-paclitaxel plus S-1 versus oxaliplatin plus S-1 as first-line treatment in advanced gastric cancer: results of a multicenter, randomized, phase III trial (GAPSO study).

Background:This study aimed to investigate the superiority of nab-paclitaxel plus S-1 (AS) over oxaliplatin plus S-1 (SOX) in patients with advanced gastric cancer (AGC).Methods:In this multicenter, randomized, phase III superiority trial, eligible patients with unresectable, locally advanced gastric adenocarcinoma were recruited and randomly assigned (1:1) to receive AS (nab-paclitaxel 260 mg/m2 on day 1 or 130 mg/m2 on days 1 and 8; oral S-1 40–60 mg twice daily for 14 days) or SOX (130 mg/m2 oxaliplatin on day 1; oral S-1 40–60 mg twice daily for 14 days) every 3 weeks for up to six cycles. The primary endpoint was progression-free survival (PFS), and the secondary endpoints were overall survival, objective response rate, and safety.Results:Owing to slow enrolment, an unplanned interim analysis was performed, resulting in the early termination of the study on 31 December 2021 (data cutoff). Between March 2019 and March 2021, 97 patients (AS, n = 48; SOX, n = 49) were treated and evaluated for efficacy and safety of AS and SOX. As of the data cutoff, the median follow-up was 23.13 months [95% confidence interval (CI), 13.39–32.87]. The median PFS was 9.03 months (95% CI, 6.50–11.56) in the AS group and 5.07 months (95% CI, 4.33–5.81) in the SOX group, demonstrating a better PFS tendency following AS treatment than SOX treatment (hazard ratio = 0.59; 95% CI, 0.37–0.94; p = 0.03). The most common grade 3 or worse adverse events were anemia, neutropenia, and leukopenia in both groups, with a higher incidence of thrombocytopenia in the SOX group.Conclusion:Although this study was terminated early, the results demonstrated a better PFS tendency in patients with AGC who were treated with AS than in those treated with SOX, with controllable toxicities.Trial registration:Clinical Trials.gov identifiers: NCT03801668. Registered January 11, 2019.

Thrombocytopenia in the ICU before and during the pandemic of the new coronavirus infection COVID-19: a comparative retrospective cohort study

INTRODUCTION: Thrombocytopenia is common in critically ill patients. Its development is associated with a high risk of bleeding and other complications, including adverse outcomes. ОBJECTIVE: To analyze the incidence, severity, predictive significance of thrombocytopenia in critically ill patients before and during coronavirus infection. MATERIALS AND METHODS: The observational study included patients from intensive care units of a multidisciplinary hospital at different periods: before the COVID-19 and during the period when the hospital was operating as a СOVID hospital. Patients from all intensive care units, excluding the hematology unit, were analyzed. RESULTS: Non-infectious period. Among 314 patients, 91 cases of thrombocytopenia were identified, representing 29 %. Severe thrombocytopenia among them was noted in 35 % (n = 32). The main etiological causes: performing extracorporeal procedures, liver disease, ischemic stroke, acute coronary syndrome. The infectious period. Thrombocytopenia occurred more frequently than in non-COVID patients (in 209 of 396 patients — 52.8 %) and was more uniform in severity. The most frequent cause of thrombocytopenia was a combination of sepsis, acute liver injury, performance of extracorporeal procedures and specific drug therapy of COVID-19 infection. CONCLUSIONS: According to our data, thrombocytopenia in the intensive care units of a multidisciplinary hospital (non-infectious period) occurred in one-third of critically ill patients. COVID 19 infection demonstrated an increased incidence of thrombocytopenia in critical patients (in the presented study up to half of the patients). Severe thrombocytopenia is more common in patients of non-infectious period (35 % vs 20%). In patients with coronavirus infection, thrombocytopenia was more frequently associated with a bleeding clinic (6.2 % vs 2.2 %), with less prognostic value as a criterion for adverse outcome: the presence of thrombocytopenia increased the risk of death by 5.5 times (95 % CI 2.979–10.031) in noninfectious and by 1.54 times (95 % CI 1.3–1.82) in COVID-19 infection.

Expected incidence of thrombocytopenia in influenza patient after ruling out for dengue concurrence

Expected incidence of thrombocytopenia in influenza patient after ruling out for dengue concurrence

Changes in Platelet Counts and Thrombocytopenia Risk in Patients with Chronic Liver Disease with Different Etiologies Using Real-World Japanese Data.

IntroductionThrombocytopenia, a common complication of chronic liver disease (CLD), adversely affects the treatment in patients requiring invasive procedures. Multiple pathophysiological mechanisms contribute to the development of thrombocytopenia; thus, its incidence could differ among CLD etiologies. We investigated the risk of decline in platelet counts and developing thrombocytopenia across different CLDs in a real-world Japanese setting.MethodsA Japanese claims database including 25 million patients (April 2008–August 2018) was used. Patients with at least one CLD diagnosis were classified into nine mutually exclusive categories: hepatitis B, hepatitis C, hepatitis B and C, unspecified viral hepatitis, autoimmune hepatitis, toxin/drug-induced hepatitis, alcoholic hepatitis, nonalcoholic steatohepatitis, and others. A random effects model was used to estimate the changes in platelet counts; proportional hazard analyses were used to examine factors associated with the incidence of thrombocytopenia based on the diagnosis. Patients with laboratory test data as variables were included in each analysis.ResultsThe simulation included 68,536 patients. The mean values representing changes in the platelet count were significantly negative in the hepatitis C patients and negative, though non-significant, in the hepatitis B, toxin/drug-induced hepatitis, alcoholic hepatitis, and nonalcoholic steatohepatitis patients. In the proportional hazard analysis, 708 of 22,728 patients had thrombocytopenia. The hazard ratio (HR) was significantly high for patients with hepatitis B (HR, 2.879; p < 0.001), hepatitis C (HR, 1.876; p < 0.001), and hepatitis B and C (HR, 2.992; p < 0.001).ConclusionA decreasing tendency in platelet counts was observed in most CLD etiologies, with hepatitis C showing a significant decrease. The incidence of thrombocytopenia was mostly associated with hepatitis B and/or C. Further research is warranted to elucidate the discrepancy between the decline in platelet counts and thrombocytopenia diagnosis, considering the factors relevant to the diagnosis, such as the frequency of outpatient visits and CLD treatment.Supplementary InformationThe online version contains supplementary material available at 10.1007/s12325-021-02008-x.

Risk Factors for CMV Viremia and Treatment-Associated Adverse Events Among Pediatric Hematopoietic Stem Cell Transplant Recipients.

BackgroundCytomegalovirus (CMV) causes substantial morbidity and mortality after hematopoietic stem cell transplantation (HSCT). There are limited data on risk factors for CMV viremia and the safety of antiviral medications used to treat CMV in children.MethodsWe conducted a single-center retrospective study of children who underwent HSCT between 2000 and 2016. We used log-logistic regression to evaluate associations between clinical characteristics and CMV-free survival at 100 days after HSCT. We compared the incidences of laboratory-defined adverse events (AEs) during treatment with ganciclovir and foscarnet.ResultsAmong 969 children, the median (interquartile range) age was 6.5 (3.1–11.5) years, and 80% underwent allogeneic HSCT. Two hundred forty-four (25%) children developed CMV viremia. Older age (odds ratio [OR], 0.95; 95% CI, 0.92–0.98), male sex (OR, 0.71; 95% CI, 0.51–0.99), non-Black, non-White race (OR, 0.56; 95% CI, 0.36–0.87), umbilical cord blood donor source (OR, 0.28; 95% CI, 0.08–0.97), and CMV seropositivity (R-/D+: OR, 0.17; 95% CI, 0.07–0.41; R+/D-: OR, 0.14; 95% CI, 0.09–0.21; R+/D+: OR, 0.08; 95% CI, 0.04–0.15) were associated with lower odds of 100-day CMV-free survival. Compared with foscarnet, ganciclovir was associated with lower incidences of thrombocytopenia (incidence rate ratio [IRR], 0.38; 95% CI, 0.15–0.97), electrolyte AEs (IRR, 0.42; 95% CI, 0.24–0.75), endocrine AEs (IRR, 0.52; 95% CI, 0.34–0.79), and renal AEs (IRR, 0.36; 95% CI, 0.19–0.65).ConclusionsCMV viremia occurred commonly among children after HSCT, and ganciclovir and foscarnet were associated with distinct toxicity profiles among children with CMV infection. These findings should be considered when developing CMV prevention and treatment strategies for children after HSCT.

Dynamic Nomogram for Predicting Thrombocytopenia in Adults with Acute Pancreatitis.

ObjectiveThrombocytopenia increases the risk of hemorrhage in patients with acute pancreatitis (AP), leading to poor clinical outcomes. Currently, there is no reliable tool for the early assessment of thrombocytopenia in these patients. We aimed to develop a nomogram based on available clinical parameters and validate its efficacy in predicting thrombocytopenia.MethodsThis was a retrospective study. All the data were extracted from an electronic database from May 2018 to May 2019. Patients with a diagnosis of AP and staying in the intensive care unit for more than 3 days were retrospectively analyzed. A clinical signature was built based on reproducible features, using the least absolute shrinkage and selection operator method (LASSO), and logistic regression established the model (P < 0.05). Nomogram performance was determined by its discrimination, calibration, and clinical usefulness.ResultsA total of 594 eligible patients were enrolled, of whom 399 were allocated to the training sets and the 195 in the test sets. The clinical features, including blood urea nitrogen (BUN), fibrinogen (FIB), and antithrombase III, were significantly associated with the incidence of thrombocytopenia after acute pancreatitis (p < 0.05) in training sets. The individualized nomogram showed good discrimination in the training sample (area under the receiver operating characteristic curve [AUC], 0.881) and in the validation sample (AUC, 0.883) with good calibration.ConclusionThe proposed nomogram has good performance for predicting thrombocytopenia in patients with acute pancreatitis and may facilitate clinical decision-making.