Risk of Venous Thromboembolism in Patients With Stage III and IV Non-Small-Cell Lung Cancer: Nationwide Descriptive Cohort Study.

BACKGROUND: Venous thromboembolism (VTE) is a common complication in patients starting cancer therapies for non-small-cell lung cancer (NSCLC). We examined the risk and timing of VTE in patients with stage IIIA, IIIB to C, and stage IV NSCLC according to received cancer treatments. MATERIALS AND METHODS: A nationwide registry-based cohort study of patients recorded in the Danish Lung Cancer Registry (2010-2021) followed for 1 year after entry into the registry to assess the incidence of VTE. The Aalen-Johansen estimator was used to calculate the risk of VTE after treatment commencement with chemotherapy, radiotherapy, chemoradiation, immunotherapy, and targeted therapy. RESULTS: Among the 3475 patients with stage IIIA, 4047 with stage IIIB to C, and 18,082 patients with stage IV cancer, the 1-year risk of VTE was highest in the first 6 months and varied markedly by cancer stage and cancer treatment. In stage IIIA, VTE risk was highest with chemotherapy (3.9%) and chemoradiation (4.1%). In stage IIIB to C, risks increased with chemotherapy (5.2%), immunotherapy (9.4%), and targeted therapy (6.0%). Stage IV NSCLC showed high risk with targeted therapy (12.5%) and immunotherapy (12.2%). The risk was consistently higher for pulmonary embolism than deep vein thrombosis. CONCLUSION: VTE risks vary substantially according to cancer treatments and cancer stages. The highest risk was observed in the initial 6 months of therapy initiation. These insights emphasize the need for tailored risk assessment and vigilance in managing VTE complications in patients with NSCLC. Further research is needed to optimize individual thromboprophylaxis strategies for patients with unresectable and metastatic NSCLC.

Adherence and Persistence to Antiplatelet Therapy in Lower Extremity Peripheral Arterial Disease: A Danish Population Based Cohort Study.

OBJECTIVE: Adherence to antiplatelet therapy is recommended but unexplored in patients with symptomatic lower extremity peripheral arterial disease (PAD). Therefore, this study aimed to determine adherence and persistence to antiplatelet therapy in patients with PAD, defined as intermittent claudication and chronic limb threatening ischaemia. DESIGN: Population based nationwide cohort study. METHODS: This study included all Danish citizens aged ≥ 40 years with a first inpatient or outpatient diagnosis of symptomatic PAD between 2010 - 2017, and who had at least one prescription claim for aspirin and/or clopidogrel within 90 days after diagnosis. Adherence was determined by the proportion of days covered (PDC) during the first year after diagnosis. Persistence was defined as no treatment gap ≥ 30 days between prescription renewals over three year follow up. RESULTS: A total of 39 687 patients were eligible for inclusion, of whom 23 279 (58.7%) claimed a prescription for aspirin and/or clopidogrel within 90 days of diagnosis. Among these, 12 898 (55.4%) were prevalent users, while the remainder comprised new users who initiated the therapy after the index PAD diagnosis. The mean PDC was 74.5% (SD 35.0%) for prevalent users and 60.5% (SD 30.5%) for new users. Adherence increased with age and number of concomitant drugs. The overall one year cumulative incidence treatment discontinuation was 13.0% (95% CI 12.5 - 13.4%) overall, 17.2% (CI 16.6 - 17.9%) for prevalent users, and 7.9% (CI 7.4 - 8.4%) for new users. At three year follow up, the cumulative incidence of discontinuation was 31.5% (CI 30.9 - 32.2%) overall, 44.6% (CI 43.7 - 45.4%) for prevalent users, and 14.6% (CI 13.9 - 15.3) for new users. CONCLUSION: Less than 60% of patients with newly diagnosed symptomatic PAD claimed a prescription for antiplatelet therapy within 90 days of diagnosis, and both adherence and persistence were moderate during the first year after diagnosis. These findings underscore the importance of efforts to improve the initiation and continuation of antiplatelet therapy in patients with PAD.

Risk and Timing of Venous Thromboembolism After Surgery for Lung Cancer: A Nationwide Cohort Study.

BACKGROUND: Venous thromboembolism (VTE) is a potentially preventable serious complication in patients with lung cancer undergoing thoracic operation. We examined the risk and timing of VTE after surgery for primary non-small cell lung cancer (NSCLC). METHODS: All patients undergoing operation for NSCLC in Denmark between 2003 and 2021 were identified in the Danish Lung Cancer Registry. VTE events in the year after operation were assessed by stage, patient characteristics, and surgical procedure. RESULTS: We identified 13,197 patients who underwent operation for NSCLC in 2003 to 2021 (mean age, 67.6 years; 50% female); 10,524 (79.7%) had stage I-II NSCLC, and 2673 (20.3%) had stage III-IV. During 1-year follow-up, there were 335 VTE events, yielding a rate of 2.87 events/100 person-years and an absolute risk of 3.3% (95% CI, 2.3-4.0). VTE risk increased with advancing cancer stage (1.8% for stage I vs 3.9% for stage IV) but varied little by pathologic type, sex, and comorbidity level. Bilobectomy was associated with highest VTE risk (4.8%; 95% CI, 3.2-6.9), followed by pneumonectomy (3.5%; 95% CI, 2.3-5.0). The hazard of VTE was highest during the first 3 months after operation, after which it declined. For stage IV cancer, hazards increased again after 6 months. At 1 year, all-cause death was 12.6% (95% CI, 12.0%-13.1%). CONCLUSIONS: VTE developed in 3.3% of patients undergoing operation for NSCLC, most commonly within 3 months postoperatively. Prolonged thromboprophylaxis could be considered, particularly in those with advanced cancer stage and undergoing extended resections.

Comparison of important factors to patients recovering from pulmonary embolism and items covered in patient-reported outcome measures: A mixed-methods systematic review.

OBJECTIVE: Up to 50 % of patients recovering from pulmonary embolism (PE) experience negative long-term outcomes. Patient-reported outcome measures (PROMs) are important in identifying what matters to patients. We aimed to identify PROMs used in clinical studies and recommended by the International Consortium of Health Outcomes (ICHOM) and compare individual items with factors considered important by patients recovering from PE. METHODS: This was a convergent mixed-methods systematic review, including quantitative studies, using PROMs and qualitative studies with non-cancer-related PE patients. Items from each PROM and qualitative findings were categorised using an International Classification of Function linking process to allow for integrated synthesis. RESULTS: A total of 68 studies using 34 different PROMs with 657 items and 13 qualitative studies with 408 findings were included. A total of 104 individual ICF codes were used, and subsequently sorted into 20 distinct categories representing patient concerns. Identified PROMs were found to adequately cover 17/20 categories, including anxiety, fear of bleeding, stress, depression, dizziness/nausea, sleep disturbance, pain, dyspnea, fatigue, activity levels, family and friends, socializing, outlook on life, and medical treatment. PROMs from the ICHOM core set covered the same categories, except for dizziness/nausea. CONCLUSIONS: No single PROM covered all aspects assessed as important by the PE population. PROMs recommended in the ICHOM core set cover 16/20 aspects. However, worrisome thoughts, hypervigilance around symptoms, and uncertainty of illness were experienced by patients with PE but were not covered by PROMS.

"No one told me anything about it and I cannot explain it": Illness perception in symptomatic and asymptomatic patients with cancer-associated thrombosis.

INTRODUCTION: Patients with cancer, have reported cancer-associated thrombosis (CAT), a distressing event in their overall illness. However, whether the clinical presentation of CAT; symptomatic versus asymptomatic, impacts illness perception is poorly elucidated. The aim of this study was to explore illness perception in patients with CAT, stratified by the clinical presentation. MATERIALS AND METHODS: In a qualitative design, we conducted a three-step workshop. Patients were included from a specialised cardiology care unit for oncology patients. Data analysis was performed using framework analysis. The analytic framework was based on the five components of illness perception: (1) identity of illness, (2) causal beliefs, (3) timeline beliefs, (4) beliefs about control/cure and (5) consequences. RESULTS: Elleven patients with CAT participated in the workshop; five symptomatic and six asymptomatic. Whitin each category of illness perception following notions emerged (1) the identity of CAT was only tangible for symptomatic participants, (2) the aetiology was considered important information for symptomatic participants, which was in contrast to asymptomatic participants, (3) asymptomatic participant did not consider recurrent CAT a threat towards their health, (4) asymptomatic participants were prone to information overload, whilst information was imperative to the sense of control in symptomatic participants, (5) low molecular weight heparin treatment was accepted in symptomatic participants due to remission of symptoms. CONCLUSIONS: The clinical presentation of CAT (asymptomatic/symptomatic) proved essential to illness perception. These findings indicate that information level and communication within the medical consultation, should actively consider the clinical presentation of CAT in order to optimize management and compliance.

Long-Term Management of Pulmonary Embolism: A Review of Consequences, Treatment, and Rehabilitation.

The concept of pulmonary embolism is evolving. Recent and emerging evidence on the treatment of specific patient populations, its secondary prevention, long-term complications, and the unmet need for rehabilitation has the potential to change clinical practice for the benefit of the patients. This review discusses the recent evidence from clinical trials, observational studies, and guidelines focusing on anticoagulation treatment, rehabilitation, emotional stress, quality of life, and the associated outcomes for patients with pulmonary embolism. Guidelines suggest that the type and duration of treatment with anticoagulation should be based on prevalent risk factors. Recent studies demonstrate that an anticoagulant treatment that is longer than two years may be effective and safe for some patients. The evidence for extended treatment in cancer patients is limited. Careful consideration is particularly necessary for pulmonary embolisms in pregnancy, cancer, and at the end of life. The rehabilitation and prevention of unnecessary deconditioning, emotional distress, and a reduced quality of life is an important, but currently they are unmet priorities for many patients with a pulmonary embolism. Future research could demonstrate optimal anticoagulant therapy durations, follow-ups, and rehabilitation, and effective patient-centered decision making at the end of life. A patient preferences and shared decision making should be incorporated in their routine care when weighing the benefits and risks with primary treatment and secondary prevention.

Management of Cancer-Associated Venous Thrombosis: A Nationwide Survey among Danish Oncologists.

Background Treatment patterns for cancer-associated venous thrombosis (CAT) has been shown to be nonconsistent with contemporary guideline recommendations, resulting in poor patient outcomes. Objectives The study aimed to describe contemporary CAT management in Danish oncology departments and identify knowledge gaps and inconsistencies between guidelines and clinical practice. Patients and Methods A survey questionnaire in Danish was developed based on contemporary national guidelines. Using an open recruitment strategy, invitations to participate in the electronic survey were sent to physicians employed at oncology departments in Denmark in winter of 2018/2019. The questionnaire was based on current national guidelines and included 10 items with multiple choices and a free-text option to specify or comment. The questionnaire was pilot-tested by a junior and senior oncologist. Results A total of 142 physicians completed the survey, representing all Danish geographical regions and various seniority. The majority reported that CAT was treated and followed up in oncology departments. However, 36.6% of the physicians were unaware of the existence of designated cancer thrombosis guidelines. Risk of venous thrombosis was generally assessed without diagnostic scores. Almost all (98.6%) reported low-molecular-weight heparin to be first-line treatment for CAT. Treatment duration seemed wrongly influenced by subtype of venous thrombosis, and 44.5% responded that thromboprophylaxis among hospitalized patients was substantially underused. Conclusion The variability in the daily clinical management of CAT demonstrated through this survey indicates a potential to increase awareness of available guidelines, standardized use of inpatient thromboprophylaxis, and organized treatment and follow-up in a multidisciplinary setting, which would potentially improve management of CAT in Denmark.

Abdominal Aortic Aneurysm - Disease or a Defect - Patients' Perceptions of Aortic Aneurysm in the Presence of Multimorbidity.

OBJECTIVES: Abdominal aortic aneurysm is associated with substantial comorbidity and significant long-term mortality. Reduction of cardiovascular risk factors and smoking cessation improves prognosis, but implementation of recommendations is suboptimal. Patient's disease-awareness and level of multimorbidity are important factors affecting treatment- adherence. This study explored the perception of disease in patients with abdominal aortic aneurysms and multimorbidity. METHODS: In a qualitative design we assessed patients' perception of aortic aneurysms in the presence of multimorbidity and cardiovascular risk factors. We conducted a workshop including patients from the aneurysm ultrasound-surveillance-program at a tertiary vascular department. Data from the workshop were analyzed using a qualitative exploratory design with an inductive approach. RESULTS: A total of 10 patients with abdominal aortic aneurysm and multimorbidity participated in the workshop. Three categories describing the patient's perception of disease emerged from the analysis. (1) Abdominal aortic aneurysm is not a disease; it is a defect, (2) Someone else is in control, (3) Abdominal aortic aneurysm is an isolated condition. CONCLUSION: Patients with abdominal aortic aneurysms and multimorbidity did not perceive their aneurysm as a disease, but merely as a bodily defect. Growth and rupture of the aneurysm were the main concerns related to the condition, and the participants relied solely on the health professionals to control this by regular ultrasound-surveillance. Consequently, the participants did not perceive abdominal aortic aneurysm as a motivation for cardiovascular risk factor modification by optimization in medication or smoking-cessation.

Increasing Incidence and Declining Mortality After Cancer-Associated Venous Thromboembolism: A Nationwide Cohort Study.

PURPOSE: The incidence of cancer-associated venous thromboembolism has increased, but whether short-term mortality after cancer-associated venous thromboembolism has changed remains uncertain. We investigated whether the increasing incidence of venous thromboembolism in cancer patients is associated with a change in mortality. METHODS: We used administrative medical registries to identify a cohort of all Danish patients diagnosed with a first primary cancer from 2006 to 2017. We examined temporal changes in 1-year risks of venous thromboembolism and in mortality risks at 30 days and 1 year after venous thromboembolism. Cox regression was used to assess changes in mortality rate ratios over time. RESULTS: We included 350,272 cancer patients (median age 68 years, 49.1% female), of whom 8167 developed venous thromboembolism within 1 year after cancer diagnosis. The cumulative 1-year risk of venous thromboembolism was 1.8% in 2006-2008, increasing to 2.8% for patients diagnosed in 2015-2017. The 30-day mortality after venous thromboembolism decreased from 15.1% in 2006-2008 to 12.7% in 2015-2017, and the 1-year mortality decreased from 52.4% to 45.8%, equivalent to a hazard ratio (HR) of 0.83 (95% confidence interval [CI], 0.75-0.90). This pattern of declining 1-year mortality was consistent for patients with pulmonary embolism, HR 0.79 (95% CI, 0.69-0.90), and deep venous thrombosis, HR 0.76 (95% CI, 0.67-0.87). Lower mortality over time was evident across all strata of cancer stage, cancer type, and cancer treatment. CONCLUSIONS: The 1-year risk of venous thromboembolism after a first primary cancer diagnosis in Denmark increased during 2006-2017. This increase was accompanied by declining mortality.

Cancer-associated venous thromboembolism and the non-vitamin K antagonist oral anticoagulants: a review of clinical outcomes and patient perspectives.

INTRODUCTION: Cancer-associated venous thromboembolism remains an important but challenging aspect in the treatment of patients with cancer. Recently, alternatives to injection of low-molecular-weight heparin (LMWH) have been introduced, the non-vitamin K antagonist oral anticoagulants (NOACs), which could potentially alleviate patients from burdensome daily injections. AREAS COVERED: This review discusses the available evidence exploring the role of NOACs in the treatment and secondary prevention of cancer-associated venous thromboembolism, from randomized trials, observational data, contemporary guideline recommendations, and patient perspectives. EXPERT OPINION: Edoxaban, rivaroxaban, and apixaban have proven attractive alternatives to LMWH for the treatment of cancer-associated venous thromboembolism. Contemporary guidelines have promptly endorsed the use of NOACs in patients with most cancer types. Nonetheless, issues remain regarding bleeding risk, interactions with medical cancer treatment, and the effectiveness and safety for extended treatment periods. There are head-to-head comparisons of the NOACs, and therefore no data favoring the use of one NOAC over the others. Patient's preferences are highly diverse and should be part of routine considerations when weighing risks and benefits associated with various available anticoagulant drugs.