Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 1.087
Filter
Add more filters

Publication year range
1.
Eur Radiol ; 34(7): 4540-4549, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38127072

ABSTRACT

OBJECTIVES: Severe coagulopathy due to consumption of synthetic cannabinoids adulterated with brodifacoum, a long-acting anticoagulant, is an emerging worldwide hazard. Here, we review the spectrum of imaging findings in adulterated cannabinoid poisoning. MATERIALS AND METHODS: In this retrospective study, we used the Israeli Poison Information Center database to identify patients with cannabinoid-associated coagulopathy who presented to the Rambam Health Care Campus, where most patients were treated during an outbreak in northern Israel between September 2021 and June 2022. All relevant imaging studies for these patients were reviewed. We estimated the sensitivity of findings for cannabinoid-associated coagulopathy. Associations between a continuous variable and a dichotomous outcome were assessed with the Mann-Whitney U test. RESULTS: We identified 48 patients (mean age 40 years ± 9 [SD], 43 males) with 54 hospitalizations due to cannabinoid-associated coagulopathy. Symptomatic hemorrhage was documented in 50 (93%) cases at presentation, most of whom (78%) had hemorrhage from multiple systems. The most common bleeding site was the genitourinary collecting system, with a characteristic sign of suburothelial bleeding in 16/18 of performed abdominal CTs (sensitivity 89% [CI 65-99%] for cannabinoid-associated coagulopathy). Intramural bowel hematomas were noted in 70% (7/10) of CTs of patients with gastrointestinal bleeding. Incidental bleeding sites were identified on imaging in 24% of patients. An increased number of bleeding sites was associated with need for vasopressors (difference in bleeding sites 3.00 [95% CI 0.99-4.00], p = 0.026). CONCLUSION: CT plays a key role in the diagnosis and work-up of adulterated cannabinoid-associated coagulopathy. Characteristic signs include suburothelial hemorrhage and intramural bowel hematomas. CLINICAL RELEVANCE STATEMENT: Recognition of radiological signs of adulterated synthetic cannabinoid-associated coagulopathy is critical for optimizing outbreak control on the public health level and ensuring timely treatment on the individual patient level. KEY POINTS: • Severe coagulopathy due to consumption of synthetic cannabinoids adulterated with brodifacoum, a long-acting anticoagulant, is an emerging worldwide threat. • Characteristic imaging signs include suburothelial bleeding, intramural bowel hematomas, and rare incidental bleeding sites. • Imaging has a pivotal role in optimizing outbreak control and ensuring timely and appropriate treatment.


Subject(s)
4-Hydroxycoumarins , Cannabinoids , Humans , Male , Adult , Female , Cannabinoids/poisoning , Retrospective Studies , 4-Hydroxycoumarins/poisoning , Israel/epidemiology , Middle Aged , Tomography, X-Ray Computed , Drug Contamination , Anticoagulants/poisoning , Blood Coagulation Disorders/chemically induced
2.
Ther Drug Monit ; 46(3): 288-290, 2024 Jun 01.
Article in English | MEDLINE | ID: mdl-38321600

ABSTRACT

BACKGROUND: This case report highlights a rare occurrence of aspirin overdose presenting only as severe coagulopathy. CASE PRESENTATION: An 85-year-old woman was admitted to the hospital with multiple lumbar vertebral compression fractures causing severe back pain. The patient had self-medicated with excessive consumption of Bufferin A containing 330 mg of aspirin. On arrival, she showed no typical symptoms of salicylate toxicity, such as nausea, vomiting, hyperventilation, tinnitus, or hearing loss. However, blood work revealed a significant decrease in vitamin K-dependent coagulation factors leading to coagulopathy. The administration of 20-mg menatetrenone (vitamin K) resulted in rapid improvement in coagulation abnormalities. The patient's blood salicylate level was later determined to be 42.7 mg/dL. DISCUSSION: Acute salicylate poisoning is known to cause coagulopathy because of the inhibition of vitamin K-dependent coagulation factors. However, this case is unique because it demonstrates coagulopathy as the sole manifestation of aspirin toxicity without any other symptoms. CONCLUSIONS: This case highlights the importance of considering the possibility of aspirin toxicity in patients with coagulopathy, especially those who are regularly consuming aspirin.


Subject(s)
Aspirin , Drug Overdose , Humans , Female , Aspirin/poisoning , Aged, 80 and over , Blood Coagulation Disorders/chemically induced , Vitamin K/therapeutic use , Anti-Inflammatory Agents, Non-Steroidal/poisoning
3.
Eur J Clin Pharmacol ; 80(5): 737-746, 2024 May.
Article in English | MEDLINE | ID: mdl-38353692

ABSTRACT

PURPOSE: To analyze the risk factors influencing the development of cefoperazone-induced coagulopathy in critically ill patients and determine the threshold of serum trough concentration. METHODS: A retrospective case-control study was conducted in the intensive care unit patients treated with cefoperazone, and it was approved by the Ethical Committee of Drum Tower Hospital affiliated with the Medical School of Nanjing University (NO.2023-158-01). Patients were divided into the normal group and coagulopathy group based on prothrombin time. The clinical characteristics of the two groups were compared using univariate analysis. The serum concentration threshold and influencing factors of cefoperazone-induced coagulopathy in critically ill patients were analyzed using the receiver operating characteristic curve and multivariate logistic regression analysis. RESULTS: A total of 113 patients were included, and cefoperazone-induced coagulopathy occurred in 39 patients, with an incidence of 34.5%. These patients experienced significant prothrombin time prolongation around day 6 (median) after cefoperazone application. The serum trough concentration threshold of cefoperazone-induced coagulopathy in critically ill patients was 87.765 mg/l. Multivariate logistic regression analysis revealed that the APACHE II score (p = 0.034), prophylactic use of vitamin K1 (p < 0.001), hepatic impairment (p = 0.014), and Cmin ≥ 87.765 mg/l (p = 0.005) were associated with cefoperazone-induced coagulopathy. CONCLUSION: Cefoperazone-induced coagulopathy usually occurs on the 6th day of cefoperazone use in critically ill patients. The risk will increase in patients with an APACHE II score > 25, hepatic impairment, and cefoperazone Cmin ≥ 87.765 mg/l. Vitamin K1 is effective in preventing this adverse reaction.


Subject(s)
Blood Coagulation Disorders , Liver Diseases , Humans , Cefoperazone/adverse effects , Case-Control Studies , Retrospective Studies , Critical Illness , Risk Factors , Blood Coagulation Disorders/chemically induced , Vitamin K , Intensive Care Units
4.
BMC Nephrol ; 25(1): 303, 2024 Sep 12.
Article in English | MEDLINE | ID: mdl-39266966

ABSTRACT

BACKGROUND: Bromadiolone is a wide-use long-acting anticoagulant rodenticide known to cause severe coagulation dysfunction. At present, there have been no detailed reports of acute kidney injury (AKI) resulting from bromadiolone poisoning. CASE PRESENTATION: A 27-year-old woman was admitted to the hospital due to severe coagulopathy and severe AKI. Coagulation test revealed a prothrombin time exceeding 120 s and an international normalized ratio (INR) greater than 10. Further examination for coagulation factors showed significantly reduced level of factors II, VII, IX and X, indicating a vitamin K deficiency. The AKI was non-oliguric and characterized by gross dysmorphic hematuria. Following the onset of the disease, the patient's serum creatinine rose from 0.86 to 6.96 mg/dL. Suspecting anticoagulant rodenticide poisoning, plasma bromadiolone was identified at a concentration of 117 ng/mL via gas chromatography/mass spectrometry. All other potential causes of AKI were excluded, except for the presence of a horseshoe kidney. The patient's kidney function fully recovered after the coagulopathy was corrected with high doses of vitamin K and plasma transfusion. At a follow-up 160 days post-discharge, the coagulation function had normalized, and the serum creatinine had returned to 0.51 mg/dL. CONCLUSION: Bromadiolone can induce AKI through a severe and prolonged coagulation disorder. Kidney function can be restored within days following treatment with high-dose vitamin K1.


Subject(s)
4-Hydroxycoumarins , Acute Kidney Injury , Blood Coagulation Disorders , Rodenticides , Humans , Female , 4-Hydroxycoumarins/poisoning , Adult , Acute Kidney Injury/chemically induced , Rodenticides/poisoning , Blood Coagulation Disorders/chemically induced , Anticoagulants/adverse effects , Vitamin K/therapeutic use
5.
Altern Ther Health Med ; 30(9): 274-278, 2024 Sep.
Article in English | MEDLINE | ID: mdl-38290444

ABSTRACT

Objective: To evaluate associations between patient characteristics and cefoperazone/sulbactam-associated coagulation dysfunction. Methods: Retrospective analysis was performed on 821 cases of bacterial infection treated with cefoperazone/sulbactam for more than three days in the Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, from January 2018 to June 2022. The patients were divided into normal coagulation function group (NCFG) (781 cases) and abnormal coagulation function group (ACFG) (40 cases) according to their coagulation function. Univariate and multivariate logistic regression analysis used the general data of the two groups of patients to investigate the risk factors of abnormal coagulation function caused by cefoperazone/sulbactam. Results: The incidence of abnormal coagulation function caused by cefoperazone/sulbactam was 4.87% (40/821). There was no significant difference in gender, body mass index (BMI), marriage, educational background, and concurrent medical conditions between the two groups (all P > .05). The patients in ACFG were older, the dosage and duration of cefoperazone/sulbactam were more prolonged, and the liver and kidney functions were more abnormal than those in NCFG, with significant differences (all P < .05). Univariate and multivariate logistic regression analysis showed that age (≥ 65 years old) (OR=1.293, 95%CI:0.897-1.287), duration of therapy (>10d) (OR=1.765, 95%CI:1.052-3.761), daily dosage (>6g) (OR=3.291, 95%CI:1.732-6.871), aspartate aminotransferase (AST) (≥ 23.98U/L) (OR=3.281, 95%CI:1.009-6.981), alanine aminotransferase (ALT) (≥ 24.03U/L) (OR=2.109, 95%CI:1.276-3.298), and serum creatinine (SCR) (>107 µ mol/L) (OR=2.716, 95%CI:1.023-4.398), prothrombin time (PT) (≥ 13.9U/L) (OR=1.571, 95%CI:1.287-1.945) were the risk factors (P < .05). Conclusion: Elderly patients, time of use, daily dose of use, liver and kidney function, and PT are the risk factors of cefoperazone/sulbactam leading to abnormal coagulation function.


Subject(s)
Anti-Bacterial Agents , Blood Coagulation Disorders , Cefoperazone , Sulbactam , Humans , Cefoperazone/adverse effects , Cefoperazone/therapeutic use , Sulbactam/adverse effects , Sulbactam/therapeutic use , Male , Female , Retrospective Studies , Middle Aged , Anti-Bacterial Agents/adverse effects , Aged , Adult , Blood Coagulation Disorders/chemically induced , Risk Factors
6.
J Emerg Nurs ; 50(4): 496-498, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38639693

ABSTRACT

Cefoperazone (CPZ) is an antibiotic widely used for moderate to severe infections, especially in countries where resources are difficult to access. This case report aimed to draw attention to coagulopathy, a potential side effect of CPZ. This side effect can cause high mortality and morbidity in patients. In the mechanism of CPZ causing coagulopathy, it is reported that effects such as binding to vitamin K, disrupting vitamin K metabolism, and preventing platelet aggregation are responsible. In this presentation, a case who came to the emergency department with the complaint of hematuria caused by coagulopathy after the use of CPZ-containing antibiotics (CPZ + sulbactam) is presented.


Subject(s)
Anti-Bacterial Agents , Blood Coagulation Disorders , Cefoperazone , Emergency Service, Hospital , Humans , Cefoperazone/therapeutic use , Cefoperazone/adverse effects , Anti-Bacterial Agents/adverse effects , Anti-Bacterial Agents/therapeutic use , Blood Coagulation Disorders/chemically induced , Blood Coagulation Disorders/drug therapy , Male , Sulbactam/therapeutic use , Sulbactam/adverse effects , Hematuria/chemically induced
7.
Med Oral Patol Oral Cir Bucal ; 29(1): e58-e66, 2024 Jan 01.
Article in English | MEDLINE | ID: mdl-37330959

ABSTRACT

BACKGROUND: The number of patients treated with coagulation disorders, and more specifically with anticoagulant therapy, has increased worldwide in recent years due to increased life expectancy in developed countries. The protocols for managing this type of patient in oral surgery has varied over recent years, especially after the appearance of new direct-acting oral anticoagulants (DOACs). The assessment of risk of bleeding in this type of patient when undergoing a surgical procedure continues to be a controversial issue for patients, dentists and general practitioners. The objective of this document is to offer recommendations, based on evidence, for decision making for patients with coagulopathies who require dental surgical intervention. MATERIAL AND METHODS: Based on the indications of the "Preparation of Clinical Practice guidelines in the National Health System. Methodological manual", we gathered a group of experts who agreed on 15 PICO questions based on managing patients with coagulation disorders in dental surgical procedures, such as fitting of implants or dental extractions. RESULTS: The 15 PICO questions were answered based on the available evidence, being limited in most cases due to the lack of a control group. Two of the PICO questions were answered by the experts with a grade C recommendation, while the rest were answered with grade D. CONCLUSIONS: The results of this review highlight the need to undertake well designed clinical trials with control groups and with a representative sample size.


Subject(s)
Blood Coagulation Disorders , Oral Surgical Procedures , Surgery, Oral , Humans , Blood Coagulation Disorders/complications , Blood Coagulation Disorders/chemically induced , Anticoagulants
8.
Pediatr Blood Cancer ; 70(1): e30079, 2023 01.
Article in English | MEDLINE | ID: mdl-36326142

ABSTRACT

SARS-CoV-2 infection (coronavirus disease 2019 [COVID-19]) induces a stark procoagulant state, with many hospitalized adults developing thrombosis despite prophylactic anticoagulation. This study aimed to characterize hemostatic parameters and associated clinical outcomes of COVID-19, such as thrombosis and bleeding, in children and to assess thromboprophylaxis use. This multicenter observational cohort study included 79 patients aged up to 18 years admitted to all pediatric hospitals in Québec, Canada, with SARS-CoV-2 infection during a 5-month period. D-dimers were elevated in 18/19 patients (94.7%) and fibrinogen in 15/26 patients (60%). Eleven patients (13.9%) received anticoagulant thromboprophylaxis. One thrombotic event and one major bleed were observed.


Subject(s)
Blood Coagulation Disorders , COVID-19 , Thrombosis , Venous Thromboembolism , Adult , Child , Humans , Aged , COVID-19/complications , Anticoagulants/therapeutic use , SARS-CoV-2 , Venous Thromboembolism/drug therapy , Blood Coagulation Disorders/etiology , Blood Coagulation Disorders/chemically induced , Thrombosis/drug therapy , Hemorrhage/drug therapy
9.
Med Sci Monit ; 29: e939203, 2023 Jun 05.
Article in English | MEDLINE | ID: mdl-37271979

ABSTRACT

BACKGROUND Owing to its broad-spectrum antibacterial activity, strong antibacterial effects, and ß-lactamase stability, cefoperazone/sulbactam has been recognized as a first-line empirical drug for treating severe infections. However, its administration is also characterized by numerous adverse effects, including coagulation dysfunction. Here, we summarize past clinical treatment data to provide data support for clinical use of cefoperazone sulbactam. MATERIAL AND METHODS We retrospectively analyzed the clinical medical records of 820 patients treated with cefoperazone/sulbactam from January 2015 to December 2020. A retrospective cohort study design was used. We assessed the general data of patients, age and sex distribution, type of primary disease, and incidence and days of abnormal blood coagulation with cefoperazone sulbactam. The chi-square test and t test were used to analyze the effect of cefoperazone sulbactam on coagulation function and the effect of vitamin K intervention on prognosis. RESULTS The rate of coagulation dysfunction was 24.39% (200 patients). Among these 200 patients, 50 were treated with vitamin K1. With increasing patient age, the number of patients with cefoperazone/sulbactam-induced coagulation dysfunction increased (peak at 81-90 years). APACHE II of coagulation dysfunction (15.54±4.095) was significantly higher than that in the normal group. It occurred at days 2-19 after administration of 9.0 g/day of cefoperazone/sulbactam. Measured coagulation indices were significantly higher after treatment with cefoperazone/sulbactam than before treatment, including international normalized ratio, prothrombin time, and activated partial thrombin time (P<0.0001). CONCLUSIONS All coagulation indices decreased significantly after vitamin K1 intervention, indicating improved coagulation function, especially in patients with high APACHE II scores. Hence, regulated vitamin K1 administration can benefit patients with coagulation dysfunction in clinical treatment.


Subject(s)
Anti-Bacterial Agents , Blood Coagulation Disorders , Blood Coagulation , Cefoperazone , Sulbactam , Vitamin K 1 , Aged, 80 and over , Humans , Anti-Bacterial Agents/adverse effects , Blood Coagulation/drug effects , Blood Coagulation Disorders/chemically induced , Blood Coagulation Disorders/prevention & control , Cefoperazone/adverse effects , Microbial Sensitivity Tests , Retrospective Studies , Sulbactam/adverse effects , Vitamin K 1/administration & dosage , Male , Female , Adult , Middle Aged , Aged , Emergency Service, Hospital
10.
Int J Mol Sci ; 24(18)2023 Sep 11.
Article in English | MEDLINE | ID: mdl-37762243

ABSTRACT

Venomous snake bite adversely affects millions of people yearly, but few animal models allow for the determination of toxicodynamic timelines with hemotoxic venoms to characterize the onset and severity of coagulopathy or assess novel, site-directed antivenom strategies. Thus, the goals of this investigation were to create a rabbit model of subcutaneous envenomation to assess venom toxicodynamics and efficacy of ruthenium-based antivenom administration. New Zealand White rabbits were sedated with midazolam via the ear vein and had viscoelastic measurements of whole blood and/or plasmatic coagulation kinetics obtained from ear artery samples. Venoms derived from Crotalus scutulatus scutulatus, Bothrops moojeni, or Calloselasma rhodostoma were injected subcutaneously, and changes in coagulation were determined over three hours and compared to samples obtained prior to envenomation. Other rabbits had ruthenium-based antivenoms injected five minutes after venom injection. Viscoelastic analyses demonstrated diverse toxicodynamic patterns of coagulopathy consistent with the molecular composition of the proteomes of the venoms tested. The antivenoms tested attenuated venom-mediated coagulopathy. A novel rabbit model can be used to characterize the onset and severity of envenomation by diverse proteomes and to assess site-directed antivenoms. Future investigation is planned involving other medically important venoms and antivenom development.


Subject(s)
Blood Coagulation Disorders , Crotalid Venoms , Ruthenium , Humans , Rabbits , Animals , Antivenins/pharmacology , Antivenins/therapeutic use , Proteome , Crotalid Venoms/toxicity , Blood Coagulation Disorders/chemically induced , Blood Coagulation Disorders/drug therapy , Snake Venoms
11.
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi ; 41(10): 863-865, 2023 Oct 20.
Article in Zh | MEDLINE | ID: mdl-37935556

ABSTRACT

Bromadiolone is still often used in life as a poisonous rodent agent. Bromadiolone poisoning is often manifested as coagulation dysfunction, resulting in organ bleeding, including cerebral hemorrhage, intestinal bleeding, abdominal hemorrhage, etc. At present, no case of intestinal necrosis caused by bromadiolone poisoning have been reported. This article reviewed one case of intestinal necrosis and severe coagulation dysfunction, and finally confirmed bromadiolone poisoning by poison detection. The patient recovered and was discharged after surgery, vitamin K injection, plasma transfusion and other treatment methods.


Subject(s)
4-Hydroxycoumarins , Blood Coagulation Disorders , Poisoning , Rodenticides , Humans , Blood Coagulation Disorders/chemically induced , Blood Component Transfusion , Hemorrhage , Necrosis , Plasma
12.
Hepatology ; 74(5): 2848-2862, 2021 11.
Article in English | MEDLINE | ID: mdl-33772846

ABSTRACT

Human serum albumin is the most abundant plasma protein, and it regulates diverse body functions. In patients with advanced and decompensated cirrhosis, serum albumin levels are low because of a reduction in the hepatocyte mass due to disease per se and multiple therapeutic interventions. Because of their oncotic and nononcotic properties, administration of human albumin solutions (HAS) have been found to be beneficial in patients undergoing large-volume paracentesis or who have hepatorenal syndrome or spontaneous bacterial peritonitis. Albumin also improves the functionality of the immune cells and mitigates the severity and risk of infections in advanced cirrhosis. Its long-term administration can modify the course of decompensated cirrhosis patients by reducing the onset of new complications, improving the quality of life, and probably providing survival benefits. There is, however, a need to rationalize the dose, duration, and frequency of albumin therapy in different liver diseases and stages of cirrhosis. In patients with acute-on-chronic liver failure, potentially toxic oxidized isoforms of albumin increase substantially, especially human nonmercaptalbumin and 2, and nitrosoalbumin. The role of administration of HAS in such patients is unclear. Determining whether removal of the pathological and dysfunctional albumin forms in these patients by "albumin dialysis" is helpful, requires additional studies. Use of albumin is not without adverse events. These mainly include allergic and transfusion reactions, volume overload, antibody formation and coagulation derangements. Considering their cost, limited availability, need for a health care setting for their administration, and potential adverse effects, judicious use of HAS in liver diseases is advocated. There is a need for new albumin molecules and economic alternatives in hepatologic practice.


Subject(s)
Acute-On-Chronic Liver Failure/drug therapy , Hepatorenal Syndrome/drug therapy , Liver Cirrhosis/drug therapy , Serum Albumin, Human/administration & dosage , Acute-On-Chronic Liver Failure/blood , Blood Coagulation Disorders/chemically induced , Blood Coagulation Disorders/epidemiology , Dose-Response Relationship, Drug , Hepatorenal Syndrome/blood , Hepatorenal Syndrome/etiology , Humans , Liver Cirrhosis/blood , Liver Cirrhosis/complications , Serum Albumin, Human/adverse effects , Serum Albumin, Human/analysis , Transfusion Reaction/epidemiology , Transfusion Reaction/etiology , Treatment Outcome
13.
Am J Emerg Med ; 58: 350.e5-350.e6, 2022 08.
Article in English | MEDLINE | ID: mdl-35577625

ABSTRACT

Contamination of synthetic cannabinoids with toxic coumarin derivatives known as superwarfarins can induce a persistent coagulopathy. In comparison to warfarin, these derivatives have prolonged half-lives and laboratory assays for detection are not readily available in clinical practice. To our knowledge, factor-guided diagnosis of coagulopathy secondary to coumarin-contaminated synthetic cannabinoids has not been described previously. Our case report details a young adult who presented to the hospital with an acute elevation in INR without any reported past medical history or illicit substance use. Factor levels were obtained and resulted quickly revealing deficiencies in factors II, VII, IX, and X, which led to a possible diagnosis of coagulopathy secondary to coumarin-contaminated synthetic cannabinoids. Upon further questioning, the patient admitted to use of synthetic cannabinoids. A bromadiolone assay was sent for testing, which resulted positive after patient discharge. Toxic coumarin derivative assays are not immediately available for reference. Given the patient's confirmed synthetic cannabinoid consumption and the possibility of coagulopathy from coumarin-contamination, factor levels served as a guide for diagnosis and treatment prior to the confirmatory assay. Obtaining factor levels in patients with an unexplained coagulopathy and suspected cannabis or synthetic cannabinoid use may aid clinicians in a more prompt diagnosis and treatment.


Subject(s)
Blood Coagulation Disorders , Cannabinoids , Cannabis , Blood Coagulation Disorders/chemically induced , Blood Coagulation Disorders/diagnosis , Blood Coagulation Disorders/drug therapy , Cannabinoids/toxicity , Coumarins/adverse effects , Humans , Warfarin/therapeutic use , Young Adult
14.
Pharmacology ; 107(9-10): 524-536, 2022.
Article in English | MEDLINE | ID: mdl-35820375

ABSTRACT

INTRODUCTION: The purpose of this study was to assess clinical characteristics and risk factors for tigecycline-associated prothrombin time (PT) and activated partial thromboplastin time (aPTT) prolongation. METHODS: We performed a retrospective analysis on coagulation parameters before and during tigecycline treatment in 55 patients in our hospital with severe infections, mainly pneumonia caused by Acinetobacter baumannii. Patients were divided into different groups according to prolongation of PT and aPTT, and clinical features involved were explored. Univariate and multivariable binary logistic regression analyses were used to identify risk factors for tigecycline-associated PT and aPTT increase. RESULTS: We found that PT values increased from 12.73 ± 1.87 to 13.86 ± 2.06 during the treatment compared with premedication (p < 0.001), and the aPTT level prolonged significantly from 33.63 ± 11.24 to 38.15 ± 11.81 (p < 0.001). The multivariate analyses identified 2 variables that were associated with tigecycline-induced PT prolongation: albumin level (p = 0.018) and weight-adjusted tigecycline dosage (p = 0.005). In addition, treatment duration was the only risk factor for tigecycline-induced aPTT prolongation (p = 0.043). CONCLUSION: Albumin level, weight-adjusted tigecycline dosage, treatment duration may serve as risk indicators for tigecycline-associated coagulation dysfunction. Physicians should be careful with coagulation disorder when prescribing tigecycline in clinical practice, especially in patients with risk factors.


Subject(s)
Blood Coagulation Disorders , Albumins , Blood Coagulation Disorders/chemically induced , Humans , Partial Thromboplastin Time , Retrospective Studies , Tigecycline/adverse effects
15.
N Engl J Med ; 379(13): 1216-1223, 2018 09 27.
Article in English | MEDLINE | ID: mdl-30280655

ABSTRACT

BACKGROUND: In March and April 2018, more than 150 patients presented to hospitals in Illinois with coagulopathy and bleeding diathesis. Area physicians and public health organizations identified an association between coagulopathy and synthetic cannabinoid use. Preliminary tests of patient serum samples and drug samples revealed that brodifacoum, an anticoagulant, was the likely adulterant. METHODS: We reviewed physician-reported data from patients admitted to Saint Francis Medical Center in Peoria, Illinois, between March 28 and April 21, 2018, and included in a case series adult patients who met the criteria used to diagnose synthetic cannabinoid-associated coagulopathy. A confirmatory anticoagulant poisoning panel was ordered at the discretion of the treating physician. RESULTS: A total of 34 patients were identified as having synthetic cannabinoid-associated coagulopathy during 45 hospitalizations. Confirmatory anticoagulant testing was performed in 15 of the 34 patients, and superwarfarin poisoning was confirmed in the 15 patients tested. Anticoagulant tests were positive for brodifacoum in 15 patients (100%), difenacoum in 5 (33%), bromadiolone in 2 (13%), and warfarin in 1 (7%). Common symptoms at presentation included gross hematuria in 19 patients (56%) and abdominal pain in 16 (47%). Computed tomography was performed to evaluate abdominal pain and revealed renal abnormalities in 12 patients. Vitamin K1 (phytonadione) was administered orally in all 34 patients and was also administered intravenously in 23 (68%). Red-cell transfusion was performed in 5 patients (15%), and fresh-frozen plasma infusion in 19 (56%). Four-factor prothrombin complex concentrate was used in 1 patient. One patient died from complications of spontaneous intracranial hemorrhage. CONCLUSIONS: Our data indicate that superwarfarin adulterants of synthetic cannabinoids can lead to clinically significant coagulopathy. In our series, in most of the cases in which the patient presented with bleeding diathesis, symptoms were controlled with the use of vitamin K1 replacement therapy. The specific synthetic cannabinoid compounds are not known.


Subject(s)
Anticoagulants/adverse effects , Blood Coagulation Disorders/epidemiology , Cannabinoids/adverse effects , Vitamin K/therapeutic use , 4-Hydroxycoumarins/adverse effects , 4-Hydroxycoumarins/analysis , Abdominal Pain/chemically induced , Adult , Blood Coagulation Disorders/chemically induced , Blood Coagulation Disorders/drug therapy , Blood Coagulation Disorders/therapy , Blood Transfusion , Cannabinoids/chemical synthesis , Cannabinoids/chemistry , Female , Hematuria/chemically induced , Hemorrhage/chemically induced , Hemorrhage/drug therapy , Humans , Illinois/epidemiology , International Normalized Ratio , Male , Middle Aged , Patient Readmission , Warfarin/adverse effects , Warfarin/analysis
16.
Blood ; 133(9): 902-905, 2019 02 28.
Article in English | MEDLINE | ID: mdl-30655273

ABSTRACT

Recent multistate outbreaks of coagulopathy caused by brodifacoum-tainted synthetic cannabinoids or "fake weed" highlight the public health impact of long-acting anticoagulant rodenticides (LAARs). Patients presenting with this syndrome have had recent exposure to synthetic cannabinoids, evidence of isolated vitamin K antagonism with or without bleeding, and detectable levels of brodifacoum and other LAARs in circulation. This article will provide information on synthetic cannabinoids, LAARs, and coagulopathic manifestations arising from use of adulterated synthetic cannabinoids and their management.


Subject(s)
4-Hydroxycoumarins/poisoning , Anticoagulants/poisoning , Blood Coagulation Disorders/drug therapy , Blood Coagulation Disorders/pathology , Cannabinoids/poisoning , Drug Contamination , Blood Coagulation Disorders/chemically induced , Disease Management , Humans
17.
Eur J Clin Pharmacol ; 77(9): 1333-1339, 2021 Sep.
Article in English | MEDLINE | ID: mdl-33783553

ABSTRACT

PURPOSE: Warfarin-associated coagulopathy commonly occurs in patients undergoing treatment with this anticoagulant. This trial aimed to determine the efficacy of using low-dose orally administered vitamin K1 to lower international normalized ratio (INR) values into the target range in a cohort of Chinese patients with mechanical heart valves. METHODS: This was a double-blind, placebo-controlled, randomized trial. Chinese patients with mechanical heart valves who were undergoing warfarin treatment and who had INR values from 4.0 to 10.0 without bleeding were the subjects of this study. These patients were randomized into two treatment groups and were orally administered either vitamin K1 (2.5 mg) or placebo. Warfarin was discontinued in both groups until INR values were ≤ 2.5. INR values on the day following treatment were the primary study outcome, with INR values on the following days and adverse clinical events over a 3-month follow-up serving as secondary study outcomes. RESULTS: In total, 80 patients were enrolled in the present study, and 40 patients each were assigned to the placebo and vitamin K1 treatment groups. Patients administered vitamin K1 exhibited a quick reduction in INR values relative to patients administered placebo (29 of 40 [72.5%] vs. 0 of 44 [0%] patients exhibiting INR values from 1.5-2.5 on the day following treatment, respectively, p = 0.000). Lower bleeding incidence was observed among patients administered vitamin K1 relative to those administered placebo during follow-up (4 [10%] vs. 12 [30%] patients, respectively, p = 0.045). There were no instances of thromboembolic complications or warfarin resistance in either group. CONCLUSION: Low-dose oral vitamin K1 can be effectively administered to Chinese patients with mechanical heart valves taking warfarin to rapidly reduce elevated INR values.


Subject(s)
Anticoagulants/adverse effects , Antifibrinolytic Agents/therapeutic use , Blood Coagulation Disorders/chemically induced , Heart Valve Prosthesis , Vitamin K 1/therapeutic use , Warfarin/adverse effects , Adult , China , Dose-Response Relationship, Drug , Double-Blind Method , Female , Hemorrhage/chemically induced , Humans , International Normalized Ratio , Male , Middle Aged , Prospective Studies
18.
J Public Health (Oxf) ; 43(1): e1-e6, 2021 04 12.
Article in English | MEDLINE | ID: mdl-31242305

ABSTRACT

In March 2018, Illinois saw the outbreak of an unprecedented public health crisis, which manifested as the development of a potentially lethal coagulopathy associated with the consumption of synthetic cannabinoids. This outbreak impacted a reported 174 patients, and was responsible for the deaths of five patients. While events unfolded, it was uncovered that the coagulopathy was not caused directly by the consumption of synthetic cannabinoids, but by the contamination of these products with Brodifacuom, bromadiol and difenacoum, potent Vitamin K antagonists that are the active ingredient in most rodenticides. This article chronicles the first reported instance of clinically significant Long Acting Anticoagulant Rodenticide poisoning on such a widespread and uniform scale, and examines the challenges posed to the providers and Public Health authorities tasked with the management of this outbreak. Crisis preparedness determines mitigation, response and recovery during trying times. It is prudent that healthcare agencies engage in collective measures to establish preparedness plans and build up their capacity to respond to health-related crises such as the one faced by Illinois in early 2018. By examining the solutions developed to tackle each unique challenge, the objective of this article is to lay a framework for action and response to similar public health crises.


Subject(s)
Blood Coagulation Disorders , Cannabinoids , Rodenticides , Anticoagulants , Blood Coagulation Disorders/chemically induced , Blood Coagulation Disorders/epidemiology , Cannabinoids/toxicity , Humans , Public Health , Rodenticides/toxicity
19.
J Clin Pharm Ther ; 46(5): 1382-1386, 2021 Oct.
Article in English | MEDLINE | ID: mdl-34114239

ABSTRACT

WHAT IS KNOWN AND OBJECTIVE: To observe the effect of latamoxef on coagulation function and to analyse its risk factors. METHODS: A retrospective cohort study was performed to compare patients receiving latamoxef versus those treated with ceftazidime. Baseline characteristics and coagulation parameters were recorded and analysed to explore whether treatment with latamoxef increased the risks of coagulation disorders and bleeding. RESULTS AND DISCUSSION: A total number of 162 patients receiving latamoxef and 93 patients receiving ceftazidime were included. Haemorrhagic events were similar between groups, but patients receiving latamoxef had a higher risk of coagulation disorders compared to those receiving ceftazidime. Multivariate analysis revealed that the exposure of antibiotics, especially the cumulative defined daily doses (DDDs), and the nutrition risk may be the predictors of coagulation disorders. WHAT IS NEW AND CONCLUSION: Latamoxef might induce coagulation disorders. Cumulative DDDs and the nutrition risk were linked with coagulation disorders.


Subject(s)
Anti-Bacterial Agents/adverse effects , Blood Coagulation Disorders/chemically induced , Moxalactam/adverse effects , Adult , Age Factors , Aged , Blood Coagulation/drug effects , Ceftazidime/adverse effects , Comorbidity , Female , Hemorrhage/chemically induced , Humans , Incidence , Male , Middle Aged , Retrospective Studies , Risk Factors , Sex Factors
20.
Heart Surg Forum ; 24(5): E949-E854, 2021 Sep 29.
Article in English | MEDLINE | ID: mdl-34623243

ABSTRACT

BACKGROUND: We aimed to evaluate the effect of third-generation hydroxyethyl starch (6% HES 130/0.4) on hemostasis and perioperative blood loss in patients undergoing off-pump coronary artery bypass (OPCAB) with continuation of preoperative aspirin. METHODS: Forty-nine consecutive patients, who underwent OPCAB at a single institution between November 1, 2014 and March 31, 2016, were included. Coagulation tests, including thromboelastometry and clinical data of all patients, retrospectively were collected from anesthesia and medical records. RESULTS: The total amount of intraoperative crystalloid and HES was 2057.5 ± 771.6 mL (N = 32) and 1090.6 ± 645.0 mL (N = 32), respectively. In the coagulation pathway, the change ratio of fibrinogen concentration, prothrombin time, and fibrinogen thromboelastometry-maximum clot firmness (FIBTEM-MCF) significantly correlated with HES (P < 0.001, P = 0.00131, and P < 0.001, respectively), but not with crystalloid. In the coagulation pathway concerning interaction with platelets, the change ratio of platelet count, extrinsic thromboelastometry-clotting formation time (EXTEM-CFT), and EXTEM-MCF significantly were correlated with HES (P < 0.001, P < 0.001, and P < 0.001, respectively), but not with crystalloid. At chest closure, the hematocrit decreased in a dose-dependent manner with HES (P < 0.001), but not with crystalloid administration. There was an association between the change ratio of hematocrit and EXTEM-MCF (P = 0.00122). However, intra-postoperative blood loss was not correlated with HES 130/0.4 or crystalloid administration. CONCLUSION: We found that 6% HES 130/0.4 prolonged coagulation testing in a dose-dependent manner due to hemodilution but did not increase blood loss in patients undergoing OPCAB with continuation of preoperative aspirin.


Subject(s)
Aspirin/administration & dosage , Blood Coagulation Disorders/chemically induced , Blood Coagulation/drug effects , Coronary Artery Bypass, Off-Pump/methods , Coronary Artery Disease/therapy , Hydroxyethyl Starch Derivatives/adverse effects , Preoperative Care/methods , Aged , Blood Coagulation Disorders/diagnosis , Coronary Artery Disease/blood , Dose-Response Relationship, Drug , Female , Follow-Up Studies , Humans , Hydroxyethyl Starch Derivatives/administration & dosage , Male , Platelet Aggregation Inhibitors/administration & dosage , Retrospective Studies , Thrombelastography
SELECTION OF CITATIONS
SEARCH DETAIL