Orphanet Journal of Rare Diseases | A Framework for Palliative Care Assessment Trigger Points in Inherited Metabolic Diseases

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This study proposes a trigger point framework for palliative care (PC) assessment in patients with inherited metabolic diseases (IMDs), helping clinicians identify the optimal timing for PC intervention earlier and more effectively, thereby improving overall care for patients and their families.

 

Literature Overview

This article, titled 'Trigger points of palliative care assessment in inherited metabolic diseases', published in the Orphanet Journal of Rare Diseases, reviews and summarizes the increasingly important clinical connection between inherited metabolic diseases (IMDs) and palliative care (PC). It proposes a framework based on the pathophysiological features of IMDs, grouping them into three disease trajectories with corresponding trigger points, aiming to facilitate the early integration of PC in IMDs to enhance quality of life and care experiences for patients and families.

Background Knowledge

Inherited Metabolic Diseases (IMDs) are a group of rare disorders caused by single-gene mutations, typically presenting in childhood or infancy, and often accompanied by severe neurological, gastrointestinal, and respiratory symptoms. Despite recent advances in diagnosis and treatment of IMDs, patients and families still face long-term disease burden, recurrent metabolic crises, and uncertainty in prognosis. Palliative care, a multidisciplinary specialty aiming to relieve symptoms, psychological distress, and assist in medical decision-making, remains in its early stages of integration within IMD management, limited by insufficient understanding of PC, resource constraints, and lack of clear referral criteria. This study proposes palliative care trigger points tailored to different IMD subtypes by reviewing the literature and pathophysiological classification, emphasizing patient-centered holistic care and encouraging partnerships between clinicians and families to optimize disease management and quality of life.

 

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Research Methods and Experimental Design

The study employed a systematic review approach, using keyword combinations to search for literature at the intersection of IMDs and PC in the PubMed database. Relevant studies from the past decade were selected and, based on the pathophysiological features of IMDs and existing pediatric palliative care (PPC) frameworks, three groups of IMD disease trajectories and corresponding trigger points were established. The research team categorized IMDs into three types—intoxicant, energy metabolism disorder, and complex molecular—each further divided into two trajectories. By integrating trigger points, the study established timing and criteria for palliative care intervention.

Key Findings and Perspectives

• Based on the pathophysiological features of IMDs, three disease trajectories were proposed, each containing two distinct clinical progression patterns, providing a basis for palliative care intervention across different IMD types
• Trigger points for palliative care include time of diagnosis, uncertainty in prognosis, burden of dietary and treatment management, metabolic crises, multi-morbidity, adaptation to 'new normal', consideration of new therapies, or transition to hospice care
• It is emphasized that palliative care should span the entire disease course, not be limited to the terminal stage, and should be part of standard care
• Current literature on the integration of PC and IMDs is limited, but existing studies support the value of PC in IMD management, particularly in symptom control, psychological support, and family decision-making assistance

Implications and Future Directions

• The proposed framework provides clinicians with a practical tool to identify opportunities for early palliative care intervention among different IMD patient populations
• Future studies should further validate the applicability of this framework across different populations and healthcare systems, and explore ways to improve PC integration in IMDs through education and collaboration

 

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Conclusion

This study provides a new perspective on the management of IMD patients by constructing a framework of trigger points for palliative care assessment based on pathophysiological features. The framework not only highlights the importance of early intervention but also defines key assessment nodes across different disease trajectories, helping to reduce misunderstandings and resistance toward palliative care among clinicians and families. It promotes a patient-centered holistic care model, enabling comprehensive support at different stages of the disease and thereby improving quality of life, reducing caregiving burden, and enhancing the rationality of medical decisions. This framework lays a solid foundation for future clinical practice and research, particularly in the field of rare disease and complex chronic disease management, offering significant potential for broader application.

 

Gustavo Marquezani Spolador, Rita Tiziana Verardo Polastrini, Ivete Zoboli, Clarissa Bueno, and Silvia Maria de Macedo Barbosa. Trigger points of palliative care assessment in inherited metabolic diseases. Orphanet Journal of Rare Diseases.