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20 March 2025

Monitoring Cardiac Health In Malignant Lymphoma Survivors

New study emphasizes global longitudinal strain as a vital metric in detecting early cardiotoxicity among lymphoma patients post-treatment.

Recent research highlights the need for vigilant cardiac monitoring among long-term survivors of malignant lymphoma, particularly those at risk of treatment-induced cardiotoxicity. A retrospective study analyzing transthoracic echocardiograms (TTE) revealed that survivors displaying lower normal left ventricular ejection fraction (LVEF) exhibited a significant decline in global longitudinal strain (GLS), a sensitive marker of early cardiac dysfunction.

Conducted at the University Hospital Brno, Czech Republic, this study focused on 167 subjects, including 88 long-term lymphoma survivors diagnosed between 1994 and 2015, with a minimum five-year follow-up after their anti-cancer treatments. The median age at diagnosis for these lymphoma patients was 29 years, indicating their young demographic, which underscores the need for effective post-treatment healthcare approaches.

Many cancer therapies, especially anthracyclines and radiation used in treating malignant lymphomas, can lead to chronic cardiovascular issues. This study reaffirms that while acute cardiac problems post-chemotherapy are well recognized, the subtler, delayed impacts manifest years later, necessitating a diligent follow-up strategy.

The research, published in Scientific Reports on March 18, 2025, is significant as it seeks to improve existing screening processes to identify cardiac dysfunction before it progresses to more severe complications. Routine TTE examinations were conducted from 2017 to 2022, utilizing state-of-the-art imaging technology to evaluate cardiac function. The goal was to explore the relationship between LVEF—an important parameter for assessing heart function—and GLS, which raises concerns about cardiac impairment at earlier stages.

Among the findings, it was noted that cancer survivors with lower LVEF values (53–61%) experienced a notable decline in GLS markers compared to those with higher normal LVEF (>61%). Importantly, this trend was not observed in the control group. These results suggest that GLS could serve as an early warning indicator in monitoring chronic cardiac toxicity in this vulnerable population.

With advances in cancer treatment leading to increased survival rates, many patients now live long enough to develop late-onset side effects from their therapies. Nearly 90% of the lymphoma survivors studied had Hodgkin lymphoma, a demographic known for requiring careful cardiovascular monitoring long after therapy ends.

According to the authors of the article, “The initiation of cardioprotective therapy based on LVEF alone has limitations due to its low sensitivity.” They argue for an integrated approach that includes evaluating GLS as part of the follow-up protocol to catch subclinical issues. Such an approach could potentially enhance cardiac health outcomes for patients who have undergone aggressive treatments.

The findings contribute to an evolving understanding of how best to protect and monitor heart health in cancer survivors. As related clinical trials continue to unfold—such as the STOP-CA study evaluating the impact of atorvastatin in reducing cardiac decline—this research represents a proactive step toward improving long-term care strategies.

The evidence amassed suggests that not only do monitoring efforts need to be comprehensive, but they also need to initiate discussions about modifying treatment protocols and considering preventive therapies. As echoed by the recent calls within the cardio-oncology community, protective strategies may include utilizing modified drug formulas or alternative therapies less likely to compromise heart function.

Ultimately, expanding the criteria for echocardiographic screening will address the increasing number of cancer survivors experiencing long-term health challenges arising from their treatments. As stated in the study, “Patients with declined GLS and lower normal LVEF are candidates for intensified follow-up to precede manifestation of cardiac adverse events.” This approach could enhance the quality of life for survivors during their post-cancer journey.

In conclusion, while advancements in cancer care have undeniably increased survival rates, they have also highlighted the critical importance of tailored long-term follow-up strategies, particularly regarding cardiac care for those treated for malignant lymphomas. The call for enhanced detection tools like GLS could be pivotal in ensuring better health outcomes among these survivors.