scholarly journals Appropriateness of using vitamin K for the correction of INR elevation secondary to hepatic disease in critically ill patients: An Observational Study

Author(s):  
Khalid Al Sulaiman ◽  
Mashael Al Mutairi ◽  
Omar Al Harbi ◽  
Alanoud Al Duraihim ◽  
Sara Aldosary ◽  
...  

Abstract Background: Hepatic diseases have been associated with an increased risk of coagulopathy and increased odds of secondary thrombosis and bleeding. Using vitamin K for correction of coagulopathy in critically ill patients is controversial with limited evidence. This study aims to evaluate the efficacy and safety of vitamin K in the correction of international normalized ratio (INR) elevation secondary to liver disease in critically ill patients.Method: A retrospective study of adult ICU patients with coagulopathy secondary to liver disease admitted to a tertiary teaching hospital in Saudi Arabia. The primary outcome was to evaluate the association between vitamin K administration and the incidence of new bleeding events in critically ill patients with INR elevation secondary to liver disease. Secondary outcomes were to evaluate the incidence of a new thrombotic event, and the degree of INR correction with vitamin K. Patients were divided into two groups based on vitamin K administration to correct INR elevation. The propensity score was generated based on disease severity scores and the use of pharmacological DVT prophylaxis. Results: A total of 98 patients were included in the study. Forty-seven patients (48%) received vitamin K during the study period. The incidence of the new bleeding event was not statistically different between groups (OR 2.4, 95% CI 0.28-21.67, P=0.42). Delta of INR reduction was observed with a median of 0.63 when the first dose is given (p-value: <.0001). However, other subsequent doses of vitamin K were not statistically significant.Conclusion: Using vitamin K for INR correction in critically ill patients with coagulopathy secondary to liver disease was not associated with a lower incidence of new bleeding events. Vitamin K was efficient in reducing INR level at the first dose, and other subsequent doses were not.

2021 ◽  
Author(s):  
Khalid Al Sulaiman ◽  
Mashael Al Mutairi ◽  
Omar Al Harbi ◽  
Alanoud Al Duraihim ◽  
Sara Aldosary ◽  
...  

Abstract Background: Hepatic diseases have been associated with an increased risk of coagulopathy and increased odds of secondary thrombosis and bleeding. Using vitamin K for correction of coagulopathy in critically ill patients is controversial with limited evidence.Objective: To evaluate the efficacy as well as safety of vitamin K in correction of international normalized ratio (INR) elevation secondary to liver disease in critically ill patients.Setting: Tertiary teaching hospital in Saudi Arabia.Method: A retrospective case-control study of adult ICU patients with coagulopathy secondary to liver disease. A total of 98 patients were included in the study. Patients were divided into two groups based on vitamin K administration to correct INR elevation. differences. The propensity score was generated based on disease severity scores to adjust group.Main outcomes: The primary outcome was to evaluate the association between vitamin K administration and the incidence of new bleeding events in critically ill patients with INR elevation secondary to liver disease. Secondary outcomes were to evaluate the incidence of a new thrombotic event and the degree of INR correction with vitamin K. Results: Forty-seven patients (48%) received vitamin K during the study period. The incidence of the new bleeding event was not statistically different between groups (OR 2.4, 95% CI 0.28-21.67, P=0.42). Delta of INR reduction was observed with a median of 0.63 when the first dose is given (p-value: <.0001). However, other subsequent doses of vitamin K were not statistically significant.Conclusion: Using vitamin K for INR correction in critically ill patients with coagulopathy secondary to liver disease was not associated with a lower incidence of new bleeding events. Vitamin K was efficient in reducing INR level at the first dose, other subsequent doses were not.Impacts on practice: 1. Routine use of vitamin K to correct PT/INR in critically ill patients with liver disease may need be re-evaluated.2. If the initial dose of vitamin K does not reverse INR elevation, subsequent doses may not have any effect.3. Using vitamin K to correct INR was not associated with a lower incidence of new bleeding events nor RBCs/Platelets transfusion than patients who did not receive it.


2021 ◽  
Author(s):  
Khalid Al Sulaiman ◽  
Mashael Al Mutairi ◽  
Omar Al Harbi ◽  
Alanoud Al Duraihim ◽  
Sara Aldosary ◽  
...  

Abstract Background Hepatic diseases have been associated with an increased risk of coagulopathy and increased odds of secondary thrombosis and bleeding. Using vitamin K for correction of coagulopathy in critically ill patients is controversial with limited evidence. Objective To evaluate the efficacy as well as safety of vitamin K in correction of international normalized ratio (INR) elevation secondary to liver disease in critically ill patients. Setting Tertiary teaching hospital in Saudi Arabia. Method A retrospective case-control study of adult ICU patients with coagulopathy secondary to liver disease. A total of 98 patients were included in the study. Patients were divided into two groups based on vitamin K administration to correct INR elevation. differences. The propensity score was generated based on disease severity scores to adjust group. Main outcomes The primary outcome was to evaluate the association between vitamin K administration and the incidence of new bleeding events in critically ill patients with INR elevation secondary to liver disease. Secondary outcomes were to evaluate the incidence of a new thrombotic event and the degree of INR correction with vitamin K. Results Forty-seven patients (48%) received vitamin K during the study period. The incidence of the new bleeding event was not statistically different between groups (OR 2.4, 95% CI 0.28-21.67, P=0.42). Delta of INR reduction was observed with a median of 0.63 when the first dose is given (p-value: <.0001). However, other subsequent doses of vitamin K were not statistically significant. Conclusion Using vitamin K for INR correction in critically ill patients with coagulopathy secondary to liver disease was not associated with a lower incidence of new bleeding events. Vitamin K was efficient in reducing INR level at the first dose, other subsequent doses were not.Impacts on practice: Routine use of vitamin K to correct PT/INR in critically ill patients with liver disease may need be re-evaluated.If the initial dose of vitamin K does not reverse INR elevation, subsequent doses may not have any effect.Using vitamin K to correct INR was not associated with a lower incidence of new bleeding events nor RBCs/Platelets transfusion than patients who did not receive it.


2021 ◽  
Vol 27 ◽  
pp. 107602962110509
Author(s):  
Khalid Al Sulaiman ◽  
Mashael Al Mutairi ◽  
Omar Al Harbi ◽  
Alanoud Al Duraihim ◽  
Sara Aldosary ◽  
...  

Background Using vitamin K for correction of coagulopathy in critically ill patients is controversial with limited evidence. This study aims to evaluate the efficacy and safety of vitamin K in the correction of international normalized ratio (INR) elevation secondary to liver disease in critically ill patients. Method A retrospective study of critically ill patients with coagulopathy secondary to liver disease. The primary outcome was to evaluate the association between vitamin K administration and the incidence of new bleeding events in critically ill patients with INR elevation; other outcomes were considered secondary. Patients were categorized into two groups based on vitamin K administration to correct INR elevation. The propensity score was generated based on disease severity scores and the use of pharmacological DVT prophylaxis. Results A total of 98 patients were included in the study. Forty-seven patients (48%) received vitamin K during the study period. The odds of the new bleeding event was not statistically different between groups (OR 2.4, 95% CI 0.28-21.67, P = .42). Delta of INR reduction was observed with a median of 0.63 when the first dose is given ( P-value: <.0001). However the INR reduction with other subsequent doses of vitamin K was not statistically significant. Conclusion The administration of vitamin K for INR correction in critically ill patients with coagulopathy secondary to liver disease was not associated with a lower odds of new bleeding events. Further studies are needed to assess the value of vitamin K administration in critically ill patients with liver diseases related coagulopathy.


Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 4267-4267
Author(s):  
Adrienne Kaufman ◽  
Yael Kusne ◽  
Molly Klanderman ◽  
Heidi E. Kosiorek ◽  
Thomas Oliver ◽  
...  

Abstract Introduction: Patients with coronavirus disease 2019 (COVID-19) have an increased risk for venous thromboembolic events. Thrombotic events contribute to the morbidity and mortality associated with COVID-19 infection, and have prompted investigation into strategies for mitigating thrombosis risk in patients hospitalized with COVID-19 infection. Our team reviewed the charts of patients hospitalized with COVID-19 pneumonia at a tertiary hospital in metropolitan Phoenix Arizona between 2020-2021, to assess frequency and efficacy of utilizing a VTE prophylaxis algorithm designed to prevent thrombosis in patients infected with COVID-19. Methods: A total of 846 patients were retrospectively evaluated to determine if they were treated with guideline-appropriate anticoagulation while hospitalized with COVID-19, as well as if they developed venous or arterial thrombotic events, or major or minor bleeds. 317 patients were excluded for taking therapeutic anticoagulation prior to admission, or for having a COVID-19 diagnosis &gt;7 days after admission. Appropriate anticoagulation was determined by an institutionally designed COVID-19 thromboprophylaxis algorithm, based on platelet count, d-dimer, bleeding risk, and level of medical care required. Regimen options included: no anticoagulation, prophylactic enoxaparin (40 mg SQ daily) or heparin in the setting of kidney dysfunction, weight-based dosing of enoxaparin (40 mg SQ BID if BMI&gt;40), intermediate intensity enoxaparin without thrombus (30 mg BID if BMI&lt;40, or 40 mg BID if BMI&gt;40), and therapeutic anticoagulation (for example enoxaparin 1 mg/kg BID) with thrombus. Demographics: Demographic data and clinical characteristics were collected for 529 patients. Average age was 59 years old, and the majority were men (58.4%). Most patients were White (58.3%), followed by Hispanic (17.8%), or Native American (15.7%). Fewer patients had a normal BMI (21.3%; BMI 18.5 - 24.9) compared to those who were overweight (31.2%; BMI 25-29.9) or obese (43.1% BMI &gt; 30). Other comorbidities included Type 1 or Type 2 diabetes mellitus (N= 172, 32.5%), hypertension (N = 271, 51.2%), and hyperlipidemia (N = 176, 33.3%). Results: A total of 42 patients (8%), were diagnosed with a venous thrombosis during hospitalization. Patients admitted to the ICU were significantly more likely to have a thrombotic event of any type compared to non-ICU patients (21.6% to 5.7%; p &lt; 0.001). Specifically, critically ill patients had higher incidences of deep vein thrombosis (9.5% to 0.7%), pulmonary emboli (8.1% to 4.8%), and superficial thrombi (2.7% to 0.2%). Only 1.1% of patients (6/529) experienced any bleeding, of which 3 were classified as a major bleed. Discussion: Among patients hospitalized at our institution with COVID-19, the majority were anticoagulated appropriately according to the COVID-19 thromboprophylaxis algorithm. Overall incidence of thrombosis in the study population was 8%. A significantly higher percent of critically ill patients had thrombi, supporting reports of correlation between severity of illness and thrombosis risk. The two regimens of anticoagulation least adhered to were weight-based and intermediate-based dosing, likely reflecting a departure from the hospital's thromboprophylaxis regimens prior to COVID-19 pandemic. Further studies are needed to characterize whether identifiable risk factors correlate with the incidence of thrombosis, and whether treatment with lower than recommended doses of anticoagulation, based on the COVID-19 thromboprophylaxis algorithm, were associated with thrombosis. Disclosures No relevant conflicts of interest to declare.


2021 ◽  
Author(s):  
Sandrine Valade ◽  
Bérangère S. Joly ◽  
Agnès Veyradier ◽  
Jehane Fadlallah ◽  
Lara Zafrani ◽  
...  

AbstractBackgroundCoagulation disorders are common in patients with hemophagocytic lymphohistiocytosis (HLH), associated with an increased risk of bleeding and death. We aim to investigate coagulation disorders and their outcome implications in critically ill patients with HLH.MethodsWe prospectively evaluated 47 critically ill patients with HLH (median age of 54 years [42-67]) between April 2015 and December 2018. Coagulation assessments were performed at day 1. Abnormal standard coagulation was defined as prothrombin time (PT) <50% and/or fibrinogen <2g/L. HLH aetiology was mostly ascribed to haematological malignancies (74% of patients).ResultsCoagulation disorders and severe bleeding events were frequent, occurring in 30 (64%) and 11 (23%) patients respectively. At day 1, median fibrinogen level was 2·65g/L [1.61-5.66]. Fibrinolytic activity was high as suggested by increased median levels of D-dimers, fibrin monomers, PAI-1 (plasminogen activator inhibitor) and tPA (tissue plasminogen activator). Forty-one (91%) patients had a decreased ADAMTS13 activity (A Disintegrin-like And Metalloproteinase with ThromboSpondin type 1 repeats, member 13). By multivariable analysis, the occurrence of a severe bleeding (OR 3.215 [1.194-8.653], p=0·021) and SOFA score (Sepsis-Related Organ Failure Assessment) at day 1 (OR 1.305 per point [1.146-1.485], p<0·001) were independently associated with hospital mortality. No early biological marker was associated with severe bleeding.ConclusionsHyperfibrinolysis may be the primary mechanism responsible for hypofibrinogenemia and may also participate in ADAMTS13 degradation. Targeting the plasmin system appears as a promising approach in severe HLH-related coagulation disorders.


2021 ◽  
Author(s):  
Abdulrahman Alshaya ◽  
Hayaa Alyahya ◽  
Reema Alzoman ◽  
Rawa Faden ◽  
Omar Alshaya ◽  
...  

Abstract Background: Patients admitted with neurocritical illness are presumed to be at high risk for venothromboembolism (VTE). The administration of chemical and/or mechanical VTE prophylaxis is a common practice in critically ill patients. Recent data did not show a significant difference in the incidence of VTE between chemical compared to chemical and mechanical VTE prophylaxis in critically ill patients with limited data in neurocritically ill population. The objective of this study is to investigate the incidence of VTE between chemical alone compared to chemical and mechanical VTE prophylaxis in neurocritically ill patients. This was a retrospective cohort study at a tertiary teaching hospital. Data were obtained from electronic medical records for all patients admitted with neurocritical illness from 1/1/2016 to 1/12/2020. Patients were excluded if they did not receive VTE prophylaxis during admission or were younger than 18 YO. Major outcomes were symptomatic VTE based on clinical and radiological findings, intensive care unit (ICU) length of stay (LOS), and hospital LOS. Minor outcomes included severe or life-threatening bleeding based on GUSTO criteria, and mortality at 28-days. Results: Two hundred and twelve patients were included in this study. Patients did not have any significant differences in their baseline characteristics. The incidence of VTE was not different between chemical only compared to chemical and mechanical VTE prophylaxis groups (19/166 (11.3%) vs 7/46 (15.2%); P=0.49. No difference between groups in their ICU LOS 6 [3 – 16.2] vs 6.5 [3 – 19]; P=0.52, nor their mortality (18/166 (10.7%) vs 3/46 (6.5%); P=0.38, respectively. Less bleeding events were seen in the chemical prophylaxis group compared to the combined VTE prophylaxis group (19/166 (11.3%) vs 12/46 (26.1%); P= 0.013. Conclusion: Our findings observed no difference between the administration of chemical prophylaxis alone compared to combined VTE prophylaxis in neurocritically ill patients. More data are needed to confirm this finding with more robust methodology.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Sofia Dahlberg ◽  
Ulf Schött ◽  
Thomas Kander

Abstract Background Previous studies have indicated that vitamin K deficiency is common in non-bleeding critically ill patients with slightly prolonged prothrombin time-international normalized ratio (PT-INR). It has never been investigated thoroughly whether the administration of vitamin K to these patients could affect their PT-INR. Therefore, the aim of this registry study was to evaluate changes in PT-INR in response to vitamin K in critically ill patients with PT-INR in the range of 1.3–1.9. Methods Patients admitted to a mixed 9-bed general intensive care unit at a University Hospital, between 2013 and 2019 (n = 4541) with a PT-INR between 1.3 and 1.9 at any time during the stay were identified. Patients who received vitamin K with appropriate sampling times for PT-INR and without exclusion criteria were matched with propensity score to patients from the same cohort who did not receive vitamin K (controls). PT-INR was measured at admission, within 12 h before vitamin K administration and 12–36 h following vitamin K administration. Exclusion criteria included pre-existing liver cirrhosis, any plasma or platelet transfusion, or > 1 unit red blood cell transfusion between PT-INR samplings. Results Propensity score matching resulted in two groups of patients with 129 patients in each group. PT-INR decreased in both groups (1.4 [1.3–1.4] in the vitamin K group and 1.4 [1.3–1.6] in the controls, p < 0.001 and p = 0.004, respectively). The decrease in PT-INR was slightly more pronounced in patients who received vitamin K (delta PT-INR − 0.10 [− 0.30 to − 0.10] in the vitamin K group and − 0.10 [− 0.20 to 0.10] in the controls, p = 0.01). Conclusion In critically ill patients with a PT-INR of 1.3–1.9, the administration of vitamin K resulted in a slightly larger decrease of PT-INR 12–36 h after administration compared to controls. Future studies should focus on identifying which patient populations may benefit most from vitamin K administration as well as whether vitamin K could be a better alternative than plasma or prothrombin complex concentrate to improve PT-INR before non-emergent invasive procedures.


2021 ◽  
pp. 039139882198906
Author(s):  
Brianda Ripoll ◽  
Antonio Rubino ◽  
Martin Besser ◽  
Chinmay Patvardhan ◽  
William Thomas ◽  
...  

Introduction: COVID-19 has been associated with increased risk of thrombosis, heparin resistance and coagulopathy in critically ill patients admitted to intensive care. We report the incidence of thrombotic and bleeding events in a single center cohort of 30 consecutive patients with COVID-19 supported by veno-venous extracorporeal oxygenation (ECMO) and who had a whole body Computed Tomography Scanner (CT) on admission. Methodology: All patients were initially admitted to other hospitals and later assessed and retrieved by our ECMO team. ECMO was initiated in the referral center and all patients admitted through our CT scan before settling in our intensive care unit. Clinical management was guided by our institutional ECMO guidelines, established since 2011 and applied to at least 40 patients every year. Results: We diagnosed a thrombotic event in 13 patients on the initial CT scan. Two of these 13 patients subsequently developed further thrombotic complications. Five of those 13 patients had a subsequent clinically significant major bleeding. In addition, two patients presented with isolated intracranial bleeds. Of the 11 patients who did not have baseline thrombotic events, one had a subsequent oropharyngeal hemorrhage. When analyzed by ROC analysis, the area under the curve for % time in intended anticoagulation range did not predict thrombosis or bleeding during the ECMO run (0.36 (95% CI 0.10–0.62); and 0.51 (95% CI 0.25–0.78); respectively). Conclusion: We observed a high prevalence of VTE and a significant number of hemorrhages in these severely ill patients with COVID-19 requiring veno-venous ECMO support.


Author(s):  
Alexandra Jayne Nelson ◽  
Brian W Johnston ◽  
Alicia Achiaa Charlotte Waite ◽  
Gedeon Lemma ◽  
Ingeborg Dorothea Welters

Background. Atrial fibrillation (AF) is the most common cardiac arrhythmia in critically ill patients. There is a paucity of data assessing the impact of anticoagulation strategies on clinical outcomes for general critical care patients with AF. Our aim was to assess the existing literature to evaluate the effectiveness of anticoagulation strategies used in critical care for AF. Methodology. A systematic literature search was conducted using MEDLINE, EMBASE, CENTRAL and PubMed databases. Studies reporting anticoagulation strategies for AF in adults admitted to a general critical care setting were assessed for inclusion. Results. Four studies were selected for data extraction. A total of 44087 patients were identified with AF, of which 17.8-49.4% received anticoagulation. The reported incidence of thromboembolic events was 0-1.4% for anticoagulated patients, and 0-1.3% in non-anticoagulated patients. Major bleeding events were reported in three studies and occurred in 7.2-8.6% of the anticoagulated patients and up to 7.1% of the non-anticoagulated patients. Conclusions. There was an increased incidence of major bleeding events in anticoagulated patients with AF in critical care compared to non-anticoagulated patients. There was no significant difference in the incidence of reported thromboembolic events within studies, between patients who did and did not receive anticoagulation. However, the outcomes reported within studies were not standardised, therefore, the generalisability of our results to the general critical care population remains unclear. Further data is required to facilitate an evidence-based assessment of the risks and benefits of anticoagulation for critically ill patients with AF.


2012 ◽  
Vol 56 (10) ◽  
pp. 5414-5418 ◽  
Author(s):  
Stefan Weiler ◽  
Elisabeth Überlacher ◽  
Julia Schöfmann ◽  
Eva Stienecke ◽  
Stefan Dunzendorfer ◽  
...  

ABSTRACTThe pharmacokinetics of lipid-bound and liberated amphotericin B (AMB) was assessed in 11 critically ill patients with cholestatic liver disease (CSLD) and in 9 subjects with normal liver function treated with AMB colloidal dispersion (ABCD). Exposure to lipid-bound AMB was higher in patients with CSLD. Levels of liberated AMB were elevated by CSLD only after the first dose, whereas its pharmacokinetics was unaffected at steady state. The standard dosage of ABCD is probably adequate for patients with CSLD.


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