The high-risk frail patient pathway: preoperative optimization to postoperative rescue

Anesthesiology

Managing frail patients undergoing colorectal surgery requires an individualised approach that considers the underlying diagnosis, surgical indication, physiological reserve, comorbidities, and the patient’s goals and preferences. Frailty is distinct from chronological age and reflects increased vulnerability to physiological stress due to factors such as impaired physical function, cognitive difficulties, nutritional deficits, and multiple comorbidities. These vulnerabilities may increase the risk of postoperative complications, delayed recovery, and functional decline. A structured, multidisciplinary perioperative pathway can help identify modifiable risks, support shared decision-making, and guide appropriate surgical and anaesthetic planning. Integrating preoperative optimisation with tailored intraoperative management, close postoperative surveillance, and timely escalation of care is essential to detect deterioration early, reduce preventable harm, and support recovery in high-risk frail patients.[1]Preoperative assessment and risk stratificationAssess frailty systematically: Use a validated instrument, such as the Clinical Frailty Scale, alongside functional status, mobility, cognition, activities of daily living, and recent changes in independenceEvaluate physiological reserve: Assess cardiopulmonary disease, renal function, anemia, nutritional status, polypharmacy, cognitive impairment, and previous postoperative complications according to the planned procedure and clinical contextDiscuss goals and risks: Explain expected benefits, potential complications, recovery requirements, and alternatives, incorporating the patient's preferences, decision-making capacity, and goals of careCoordinate multidisciplinary planning: Involve anesthesia, surgery, geriatrics, nursing, rehabilitation, pharmacy, and nutrition services when appropriate to develop an individualized perioperative planPreoperative optimizationImprove nutritional status: Screen for malnutrition and inadequate intake, and arrange nutritional assessment and support when indicatedAddress functional impairment: Encourage individualized physical activity, resistance exercise, and respiratory optimization when feasible and appropriate for the patient's conditionOptimize chronic conditions: Stabilize clinically significant cardiopulmonary disease, review glycemic control, correct reversible electrolyte abnormalities, and investigate and manage anemia according to its causeReview medications: Identify drugs that may increase bleeding, hypotension, delirium, or sedation risk, and plan perioperative continuation or interruption according to the medication and relevant clinical guidancePlan delirium prevention: Identify baseline cognitive impairment and implement measures such as orientation, sleep protection, adequate hydration, sensory aids, and appropriate pain controlIntraoperative strategiesIndividualize anesthetic management: Select the anesthetic technique and monitoring intensity according to procedural demands, comorbidities, physiological reserve, and patient preferencesMaintain physiological stability: Avoid preventable hypotension, hypoxemia, hypothermia, excessive fluid administration, and inadequate analgesia while maintaining appropriate organ perfusionReduce avoidable harm: Use blood conservation measures when indicated, minimize unnecessary invasive devices, and apply procedure-appropriate infection prevention and thromboprophylaxis strategiesPlan postoperative disposition: Determine whether routine recovery, extended observation, or higher-acuity monitoring is appropriate before the procedure endsPostoperative surveillance and rescueDetect deterioration early: Monitor vital signs, oxygenation, mental status, urine output when indicated, pain, and functional recovery, with observation frequency matched to clinical riskInvestigate new abnormalities: Escalate assessment for persistent hypotension, increasing oxygen requirements, oliguria, altered mental status, fever, or unexpected pain rather than attributing changes to frailty aloneUse structured escalation: Establish clear thresholds for senior review, rapid response activation, critical care assessment, and timely investigation of suspected complicationsSupport recovery: Resume appropriate nutrition and mobility early, review medication requirements, remove unnecessary catheters, and coordinate rehabilitation and discharge planningPathway checkpointsTransition pointRequired safety considerationBefore surgeryConfirm that the proposed intervention aligns with the patient's goals and that modifiable risks have been addressed as far as feasible.Transfer to recoveryCommunicate baseline cognition, intraoperative events, analgesia plan, fluid balance, and anticipated monitoring needs.First postoperative dayReassess mobility, nutrition, cognition, pain control, and emerging complications, adjusting the care plan as needed.Discharge planningConfirm functional support, medication reconciliation, follow-up arrangements, and clear instructions for recognizing deterioration.ConclusionAs populations age, frailty is increasingly recognised as an important factor influencing surgical risk and recovery in older adults. It is a multidimensional syndrome characterised by reduced physiological reserve and increased vulnerability to surgical stress, with physical, cognitive, psychological, biological, and social factors contributing to an individual’s overall risk. A structured pathway for high-risk frail patients should integrate individualised preoperative assessment and optimisation, appropriate intraoperative management, and systematic postoperative surveillance with timely escalation of care. Frailty should guide personalised risk assessment and shared decision-making rather than automatically preclude surgery. Multidisciplinary coordination, early recognition of clinical deterioration, and care aligned with the patient’s goals and preferences are essential to reducing preventable complications and supporting meaningful recovery.[2]Reference(s):1. Sharon CE, Strohl C, Saur NM. Frailty Assessment and Prehabilitation as Part of a PeRioperative Evaluation and Planning (PREP) Program for Patients Undergoing Colorectal Surgery. Clin Colon Rectal Surg. 2023;36(3):184-191. Published 2023 Feb 3. doi:10.1055/s-0043-1761151. https://pmc.ncbi.nlm.nih.gov/articles/PMC10125297/2. Ron R, Goldstein H, Aharonovich N, Gross-Nevo RF, Patalon T, Radomyslsky Z. Preoperative geriatric assessment and postoperative outcomes in older adults at risk for frailty-related complications following major surgery: a retrospective comparative cohort study. BMC Geriatr. 2026;26(1):524. Published 2026 Mar 7. doi:10.1186/s12877-026-07294-0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13081399/