Functional Recovery After Chemotherapy- and Radiotherapy-Induced Gastrointestinal Injury: Mechanisms, Clinical...

Area of Science:

• Oncology
• Gastroenterology
• Regenerative Medicine

Background:

• Gastrointestinal injury from chemotherapy and radiotherapy is a frequent complication of cancer treatment.
• This injury can lead to acute symptoms and persistent bowel dysfunction, impacting patient quality of life.
• Current terminology like 'toxicity' or 'mucositis' inadequately describes incomplete functional recovery.

Purpose of the Study:

• To propose a practical, recovery-oriented framework for assessing and managing gastrointestinal injury after cancer treatment.
• To define meaningful recovery across structural, barrier, clinical, and patient-centered domains.
• To guide improved clinical decision-making and patient care.

Main Methods:

• Summarizing the acute-to-chronic spectrum of gastrointestinal injury.
• Examining mechanisms underlying failed recovery.
• Reviewing current clinical assessment and management strategies.
• Discussing emerging therapeutic approaches.

Main Results:

• A proposed four-domain recovery-oriented framework (structural, barrier, clinical, patient-centered).
• Identification of mechanisms contributing to persistent bowel dysfunction.
• Overview of current supportive and emerging regenerative strategies.
• Highlighting the need to integrate multiple data points for recovery assessment.

Conclusions:

• A recovery-oriented model offers a more comprehensive approach than symptom-centered care.
• Integrating symptom trajectory, nutritional status, and patient-reported outcomes is crucial.
• Emerging strategies like biomarker monitoring and microbiome interventions show promise.
• This framework can improve monitoring and restoration of gastrointestinal function post-cancer treatment.