ABSTRACT

BACKGROUND: Doxorubicin is a widely used agent in the treatment of cancer, but the cardiotoxicity associated with this drug limits its potential for use. The cardioprotective effects of dapagliflozin, an antidiabetic drug, have the potential to counteract the cardiotoxic effect of doxorubicin therapy. In our study, we aimed to investigate the protective effect of dapagliflozin from possible doxorubicin-induced cardiotoxicity.

METHODS: A total of 40 male Wistar albino rats were divided into 4 groups consisting of 10 each (control = 10, dapagliflozin = 10, doxorubicin = 10, doxorubicin + dapagliflozin = 10). Meanwhile, doxorubicin and doxorubicin + dapagliflozin groups received a total dose of 15 mg/kg doxorubicin intraperitoneally, dapagliflozin and doxorubicin + dapagliflozin groups were gavaged daily with 10 mg/kg dapagliflozin. At the sixth week of the study, rats were examined by echocardiography and electrocardiogram. Furthermore, histopathological method was used to evaluate the level of cardiotoxicity.

RESULTS: Ejection fraction decreased by 15% in the doxorubicin group, and this reduction in ejection fraction was alleviated in the doxorubicin + dapagliflozin group. In addition, a 65% increase in QRS duration was observed in the group given doxorubicin, while an increase of 7% was observed in doxorubicin + dapagliflozin group. Corrected QT duration increased by 12% in the doxorubicin group, compared to 2% in doxorubicin + dapagliflozin group. Meanwhile, sarco-myolysis, inflammatory cell infiltration, and necrotic changes were examined heavily in doxorubicin group, they were minimal in doxorubicin + dapagliflozin group.

CONCLUSION: Our study showed that dapagliflozin has the potential to reduce the effects of doxorubicin-induced cardiotoxicity.

PMID:37257007 | DOI:10.14744/AnatolJCardiol.2023.2825

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PubMed articles on: Cancer & VTE/PE

Prevention of venous thromboembolism in patients with cancer

BMJ. 2023 Jun 1;381:e072715. doi: 10.1136/bmj-2022-072715.

ABSTRACT

Venous thromboembolism (VTE) is a major cause of both morbidity and mortality in patients with cancer. Venous thromboembolism, which includes both deep vein thrombosis and pulmonary embolism, affects a sizable portion of patients with malignancy and can have potentially life threatening complications. Accurate assessment of risk as well as diagnosis and treatment of this process is paramount to preventing death in this high risk population. Various risk models predictive of venous thromboembolism in patients with cancer have been developed, and knowledge of these rubrics is essential for the treating oncologist. Subgroups of particular interest are inpatients receiving chemotherapy, postoperative patients after surgical debulking, and patients undergoing radiotherapy. Numerous newer drugs have become available for the prevention of venous thromboembolism in patients with cancer who are at high risk of developing the disease. These include the class of drugs called direct oral anticoagulants, (DOACs) which do not require the same monitoring that other modalities have previously required and are taken by mouth, preventing the discomfort associated with subcutaneous strategies. The appropriate risk stratification and intervention to prevent venous thromboembolism are vital to the treatment of patients with cancer.

PMID:37263632 | DOI:10.1136/bmj-2022-072715

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PubMed articles on: Cancer & VTE/PE

Accuracy of the Physicians' Intuitive Risk Estimation in the Diagnostic Management of Pulmonary Embolism: An Individual Patient Data Meta-Analysis

J Thromb Haemost. 2023 May 30:S1538-7836(23)00438-5. doi: 10.1016/j.jtha.2023.05.023. Online ahead of print.

ABSTRACT

BACKGROUND: In patients clinically suspected of pulmonary embolism (PE), physicians often rely on an intuitive estimation ('gestalt') of PE presence. Although shown to be predictive, gestalt is criticized for its assumed variation across physicians and lack of standardization.

OBJECTIVES: To assess the diagnostic accuracy of gestalt in diagnosing PE and gain insight into its possible variation.

METHODS: We performed an individual patient data meta-analysis including patients suspected of PE. The primary outcome was the diagnostic accuracy of gestalt for diagnosing PE, quantified as a risk ratio (RR) between gestalt and PE from a two-stage random-effect log-binomial meta-analysis regression as well as gestalts' sensitivity and specificity. Variability of these measures was explored across different healthcare settings, publication period, PE prevalence, patient subgroups (sex, heart failure, chronic lung disease, and items of the Wells score other than gestalt), and age.

RESULTS: We analysed 20,770 patients suspected of PE from 16 original studies. The prevalence of PE in patients with and without a positive gestalt was 28.8% versus 9.1%, respectively. The overall RR was 3.02 (95%CI 2.35, 3.87) and overall sensitivity and specificity were 74% (95%CI 68-79%) and 61% (95%CI 53-68%). Although variation was observed across individual studies (I2-90.63%), diagnostic accuracy was consistent across all subgroups and healthcare settings.

CONCLUSIONS: A positive gestalt was associated with a threefold increased risk of PE in suspected patients. Although variation was observed across studies, the RR of gestalt was similar across prespecified subgroups and healthcare settings, exemplifying its diagnostic value for all patients suspected of PE.

PMID:37263381 | DOI:10.1016/j.jtha.2023.05.023

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PubMed articles on: Cancer & VTE/PE

Thromboprophylaxis for COVID-19: Time to ask for an extension?

Vasc Med. 2023 Jun 1:1358863X231175183. doi: 10.1177/1358863X231175183. Online ahead of print.

NO ABSTRACT

PMID:37259519 | DOI:10.1177/1358863X231175183

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PubMed articles on: Cancer & VTE/PE

Thrombosis in the Neonatal Intensive Care Unit

Neoreviews. 2023 Jun 1;24(6):e356-e369. doi: 10.1542/neo.24-6-e356.

ABSTRACT

Neonates, particularly critically ill and premature infants, have one of the highest risks of thromboembolic complications, particularly venous thromboembolism (VTE), in the pediatric population. Recent data suggest that the incidence of VTE has significantly increased in neonates over the last few decades. Critically ill and premature infants exhibit multiple risk factors that place them at a high risk for thromboembolic events including developmental hemostasis, propensity to infections, and frequent need for central venous access. The clinical presentation, diagnostic modalities, and treatment strategies for thromboembolic complications in neonates vary based on several factors, including the etiology of the thromboembolic event, the anatomic site affected, and the patient's underlying comorbidities. Although guidelines for management are available, they are mostly based on consensus recommendations and on extrapolation from adult data due to a lack of high-quality data in the neonatal population. Current guidelines recommend anticoagulation for specific scenarios. More studies are necessary to elucidate optimal management strategies for newborns with thromboembolic complications.

PMID:37258498 | DOI:10.1542/neo.24-6-e356

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PubMed articles on: Cancer & VTE/PE

Disparities in the Outcomes of Acute Pulmonary Embolism in Hospitalized Patients with Hematologic Malignancy and Solid Tumor

Int Heart J. 2023;64(3):432-441. doi: 10.1536/ihj.22-704.

ABSTRACT

This study aimed to compare the clinical burden and healthcare utilization outcomes of hematologic versus solid malignancies in patients hospitalized with acute pulmonary embolism (PE). This population-based, retrospective study extracted and analyzed the discharge data from the 2016-2018 US National Inpatient Sample (NIS) of hospitalized patients with a primary diagnosis of acute PE and a subsequent diagnosis of hematologic malignancies or solid tumors. Prolonged length-of-stay (LOS) was defined as ≥75th percentile LOS of the study cohort. Unfavorable discharge was defined as discharged to nursing home or long-term facility. Univariate and multivariate regression analyses were conducted to determine associations between cancer type, presence of unstable PE, and in-hospital outcomes in acute PE patients. Patients with acute PE with solid tumors had higher rates of in-hospital deaths and unfavorable discharge than those with hematologic malignancies (6.4% versus 3.2%, P < 0.001; 14.0% versus 11.2%, P = 0.01, respectively). Acute PE patients with hematologic malignancies had a lower risk of in-hospital death (aOR: 0.43, 95% CI: 0.31-0.60), unfavorable discharge (aOR: 0.76, 95% CI: 0.63-0.92), and prolonged LOS (aOR: 0.83, 95% CI: 0.71-0.98) than those with solid tumors. Stratified analysis showed that male patients aged <60

PMID:37258119 | DOI:10.1536/ihj.22-704

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PubMed articles on: Cancer & VTE/PE

Evaluation of Patient Characteristics Linked to Major Bleeding Events in Patients Prescribed Direct Oral Anticoagulants

Clin Appl Thromb Hemost. 2023 Jan-Dec;29:10760296231172765. doi: 10.1177/10760296231172765.