ABSTRACT

Optimizing the anticoagulation therapy is of pivotal importance in patients with a malignant tumor, as venous thromboembolism (VTE) has become the second-leading cause of death in this population. Cancer can highly increase the risk of thrombosis and bleeding. Consequently, the management of cancer-associated VTE is complex. In recent years, translational research has intensified, and several studies have highlighted the role of inflammatory cytokines in cancer growth and progression. Simultaneously, the pleiotropic effects of anticoagulants currently recommended for VTE have emerged. In this review, we describe the anti-inflammatory and anticancer effects of both direct oral anticoagulants (DOACs) and low-molecular-weight heparins (LWMHs).

PMID:37763292 | PMC:PMC10532829 | DOI:10.3390/life13091888

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PubMed articles on: Cancer & VTE/PE

Anticoagulation for the treatment of septic cerebral venous sinus thrombosis in the setting of pediatric sinogenic and otogenic intracranial infections

Neurosurg Focus. 2023 Oct;55(4):E8. doi: 10.3171/2023.7.FOCUS23374.

ABSTRACT

OBJECTIVE: Septic cerebral venous sinus thrombosis (CVST) is a recognized complication of pediatric sinogenic and otogenic intracranial infections. The optimal treatment paradigm remains controversial. Proponents of anticoagulation highlight its role in preventing thrombus propagation and promoting recanalization, while others cite the risk of hemorrhagic complications, especially after a neurosurgical procedure for an epidural abscess or subdural empyema. Here, the authors investigated the diagnosis, management, and outcomes of pediatric patients with sinogenic or otogenic intracranial infections and a septic CVST.

METHODS: All patients 21 years of age or younger, who presented with an intracranial infection in the setting of sinusitis or otitis media and who underwent neurosurgical treatment at Connecticut Children's, Rady Children's Hospital-San Diego, or Ann and Robert H. Lurie Children's Hospital of Chicago from March 2015 to March 2023, were retrospectively reviewed. Demographic, clinical, and radiological data were systematically collated.

RESULTS: Ninety-six patients were treated for sinusitis-related and/or otitis media-related intracranial infections during the study period, 15 (15.6%) of whom were diagnosed with a CVST. Of the 60 patients who presented prior to the COVID-19 pandemic, 6 (10.0%) were diagnosed with a septic CVST, whereas of the 36 who presented during the COVID-19 pandemic, 9 (25.0%) had a septic CVST (p = 0.050). The superior sagittal sinus was involved in 12 (80.0%) patients and the transverse and/or sigmoid sinuses in 4 (26.7%). Only 1 (6.7%) patient had a fully occlusive thrombus. Of the 15 patients with a septic CVST, 11 (73.3%) were initiated on anticoagulation at a median interval of 4 (IQR 3-5) days from the most recent neurosurgical procedure. Five (45.5%) patients who underwent anticoagulation demonstrated complete recanalization on follow-up imaging, and 4 (36.4%) had partial recanalization. Three (75.0%) patients who did not undergo anticoagulation demonstrated complete recanalization, and 1 (25.0%) had partial recanalization. None of the patients treated with anticoagulation experienced hemorrhagic complications.

CONCLUSIONS: Septic CVST is frequently identified among pediatric patients undergoing neurosurgical intervention for sinogenic and/or otogenic intracranial infections and may have become more prevalent during the COVID-19 pandemic. Anticoagulation can be used safely in the acute postoperative period if administered cautiously, in a monitored setting, and with interval cross-sectional imaging. However, some patients exhibit excellent outcomes without anticoagulation, and further studies are needed to identify those who may benefit the most from anticoagulation.

PMID:37778041 | DOI:10.3171/2023.7.FOCUS23374

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PubMed articles on: Cancer & VTE/PE

The Risk of Thromboembolism in Patients with Muscle Invasive Bladder Cancer before and after Cystectomy Depending on Blood Group and Neoadjuvant Chemotherapy-A Multicentre Retrospective Cohort Study

J Pers Med. 2023 Sep 4;13(9):1355. doi: 10.3390/jpm13091355.

ABSTRACT

PURPOSE: Previous studies have indicated that patients with muscle-invasive bladder cancer with non-O blood types have an increased risk of experiencing thromboembolic events (TEEs). This is finding is in relation to neoadjuvant-chemotherapy (NAC)-naïve patients.

AIM: to establish the risk of TEEs and any association with blood types among NAC patients as well as NAC-naïve patients.

METHODS: Cystectomized patients at four centres treated from 2009 to 2018 (n = 244) were analysed. The quantities of patients corresponding to each blood group were as follows: A-108 (44%); O-99 (41%); B-30 (12%); and AB-7 (3%). NAC patients (n = 167) and NAC-naïve NAC-eligible patients (n = 77) were assessed. In total, 54 women (22%) and 190 men (78%), with a median age of 69 years, were included in the study. The occurrence of any type of TEE from six months pre-cystectomy to 12-24 months after was analysed using logistic regression adjusted for NAC and confounders.

RESULTS: Sixty-six TEEs were detected in 21% of the patients (n = 52). Pulmonary embolus (n = 33) and deep venous thrombosis (n = 11) were the most common forms. No significant differences between blood types were found in the analysis, although B blood type had a nearly significant increased crude risk compared with O blood type, for which there was an OR of 2.48 (95% CI 0.98-6.36). Adjustment for NAC and covariates weakened the OR, which plummeted to 1.98 (95% CI 0.71-5.51).

CONCLUSIONS: No significant associations were found between blood types and TEE occurrences in this cohort including both NAC and NAC-naïve NAC-eligible patients.

PMID:37763123 | PMC:PMC10533159 | DOI:10.3390/jpm13091355

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PubMed articles on: Cancer & VTE/PE

A Rare Incidence of Hepatocellular Carcinoma With Tumor Thrombus Extending to the Right Heart

Cureus. 2023 Aug 23;15(8):e43965. doi: 10.7759/cureus.43965. eCollection 2023 Aug.

ABSTRACT

Hepatocellular carcinoma (HCC) is a leading cause of cancer-related deaths and the sixth most commonly diagnosed cancer worldwide due to several common risk factors, including hepatitis C virus (HCV), hepatitis B virus (HBV), and other causes of cirrhosis. In HCC, intrahepatic vascular invasion and a tumor thrombus are commonly observed. However, the extrahepatic spread of the tumor thrombus to the heart via the portal vein, hepatic vein, and inferior vena cava (IVC) is rarely reported and is considered a poor prognostic factor. In addition, rarely, there is a risk of cor pulmonale and thromboembolism of the pulmonary vessels. Our patient also presented with this rare complication of HCC. Our patient's clinical presentation was bilateral pedal edema, moderate ascites, and abdominal discomfort with raised jugular venous pressure. These signs and symptoms are related to an impairment of the right heart caused by intracardiac tumor thrombus metastasis, leading to diastolic dysfunction. Based on these findings, echocardiography and abdominal computed tomography (CT) scan were performed with the definitive diagnosis of hepatocellular carcinoma with tumor thrombus metastases in the hepatic vein, inferior vena cava, and right atrium. The management team agreed on a conservative treatment plan based on the advanced stage of the disease and the high risk associated with aggressive treatment modalities. Unfortunately, on day 7 of admission, the patient died from a possible pulmonary embolism that led to cardiopulmonary arrest. This case underscores the importance of screening patients with a high HCC tumor burden with abdominal ultrasound and echocardiography for early detection and timely management.

PMID:37746383 | PMC:PMC10515291 | DOI:10.7759/cureus.43965

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PubMed articles on: Cancer & VTE/PE

ASO Visual Abstract: In-Hospital Venous Thromboembolism and Pulmonary Embolism After Major Urological Cancer Surgery

Ann Surg Oncol. 2023 Sep 25. doi: 10.1245/s10434-023-14315-4. Online ahead of print.

NO ABSTRACT

PMID:37743458 | DOI:10.1245/s10434-023-14315-4

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PubMed articles on: Cancer & VTE/PE

Effect of factor XI inhibition on tumor cell-induced coagulation activation

J Thromb Haemost. 2023 Sep 24:S1538-7836(23)00717-1. doi: 10.1016/j.jtha.2023.09.015. Online ahead of print.

ABSTRACT

BACKGROUND: Cancer-associated thrombosis (CAT) is a frequent complication in patients with malignancies. While FXI/FXIa inhibition is efficacious in preventing postoperative venous thromboembolism, its role in tumor cell-induced coagulation is less defined.

OBJECTIVES: We thus aimed to provide mechanistic insights into FXI/FXIa inhibition in tumor cell-induced coagulation activation.

METHODS: Procoagulant activity (PCA) of four different tissue factor (TF) expressing tumor cell lines was analyzed by single-stage clotting and thrombin generation assay in the presence of a FXIa inhibitor, BMS-262084 (BMS), an inhibitory FXI antibody (anti-FXI), or peak and trough concentrations of rivaroxaban or tinzaparin. Further, tumor cell-induced platelet aggregation was recorded. Recombinant human TF (rhTF) served as positive control.

RESULTS: Although BMS and anti-FXI potently inhibited FXIa amidolytic activity, both inhibitors efficiently mitigated rhTF- and tumor cell-induced fibrin clot formation and platelet aggregation only in the presence of low TF PCA. The anticoagulant effects showed an inverse correlation with the magnitude of cellular TF PCA expression. Similarly, BMS markedly interfered with tumor cell-induced thrombin generation, with the most prominent effects on peak and total thrombin. In addition, anticoagulant effects of FXIa inhibition by 10 μM BMS were in a similar range to those obtained by 600 nM rivaroxaban and 1.6 μM tinzaparin at low TF PCA levels. However, rivaroxaban and tinzaparin also exerted marked anticoagulant activity at high TF PCA levels.

CONCLUSIONS: Our findings indicate that FXI/FXIa inhibition interferes with tumor cell-induced coagulation activation only at low TF PCA expression levels, a finding with potential implications for future in-vivo studies.

PMID:37751848 | DOI:10.1016/j.jtha.2023.09.015

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PubMed articles on: Cancer & VTE/PE

The Impact of Type 2 Myocardial Infarction in Acute Pancreatitis: Analysis of 1.1 Million Hospitalizations and Review of the Literature

Cureus. 2023 Aug 25;15(8):e44113. doi: 10.7759/cureus.44113. eCollection 2023 Aug.

ABSTRACT

Introduction Acute pancreatitis (AP) is a common inflammatory disorder with acute onset and rapid progression. Studies have reported cardiac injury in patients with AP. It is often thought that stress cardiomyopathy can induce these changes leading to type 2 myocardial infarction (type 2 MI) in AP. Our study aims to assess the prevalence as well as the impact of type 2 MI on outcomes in patients with AP. Methods National Inpatient Sample (NIS) 2016-2020 was used to identify adult patients (age>18) with acute pancreatitis. We excluded patients with STEMI, NSTEMI, pancreatic cancer, or chronic pancreatitis. Patients with missing demographics and mortality were also excluded. Patients were stratified into two groups, based on the presence of type 2 MI. Multivariate logistic regression analysis was performed to assess the impact of concomitant type 2 MI on mortality, sepsis, acute kidney injury (AKI), ICU admission, deep venous thrombosis (DVT), and pulmonary embolism (PE) after adjusting for patient demographics, hospital characteristics, etiology of AP and the Elixhauser comorbidities. Results Of the 1.1 million patients in the study population, only 2315 patients had type 2 MI. The majority of the patients in the type 2 MI group were aged >65 years (49.2%, p<0.001),<0.001),<0.001),<0.001),<0.001),<0.001)<0.001).<0.001).<0.001)<0.001).

PMID:37750110 | PMC:PMC10518190 | DOI:10.7759/cureus.44113

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PubMed articles on: Cancer & VTE/PE

Safety and efficacy of oral anticoagulants in extreme weights

Thromb Res. 2023 Sep 12;231:1-6. doi: 10.1016/j.thromres.2023.09.001. Online ahead of print.