Clinical Decision-Making Resources: UpToDate vs Harrison's
Neither UpToDate nor Harrison's should be used as standalone resources for clinical decision-making; instead, clinicians must integrate multiple knowledge sources—including clinical practice guidelines, pathophysiologic reasoning, and clinical experience—while recognizing that no single resource type holds universal superiority in all clinical situations. 1
The Fundamental Problem with Resource Hierarchies
- No predetermined hierarchy of medical knowledge can guide clinical decision-making in all situations. 1
- Rankings based solely on resource type or study design cannot be directly applied to individual clinical decisions, as exceptions always exist and must be acknowledged. 1
- Sound clinical judgment requires negotiating between potentially conflicting information from different sources when determining the best course of action for individual patients. 1
How to Approach Clinical Resources
Prioritize Clinical Practice Guidelines First
- Clinical practice guidelines should serve as the primary framework for clinical decisions, as they represent systematically developed statements synthesizing large amounts of evidence into practice recommendations. 2
- Guidelines developed using transparent, robust methodology with systematic evidence retrieval minimize bias and focus on patient-relevant outcomes. 2
- However, guidelines often differ in content, recommendations, and development methodology, with most based on expert opinion combined with scientific evidence that remains untested in real-world settings. 1
Recognize the Limitations of All Resources
- Even high-quality evidence from randomized trials is often incomplete, contradictory, or absent, even in extensively studied areas. 3
- The overall results of trials cannot be assumed to apply to any particular individual, even those meeting all entry criteria, because therapy is not the only determinant of outcome. 3
- Guidelines are not intended to be rigid substitutes for well-educated providers informed by good research. 1
Practical Application for UpToDate vs Harrison's
UpToDate's Role
- UpToDate functions as a point-of-care clinical decision support tool that doctors use in diverse clinical scenarios to influence clinical practice, benefiting patients, physicians, and healthcare organizations. 4
- It provides rapidly accessible, synthesized information during patient encounters but should not replace systematic guideline consultation or clinical reasoning. 4
Harrison's Role
- Harrison's serves as a comprehensive textbook providing pathophysiologic rationale and foundational medical knowledge.
- While pathophysiologic understanding allows incorporation of individual patient differences, reasoning from this alone may introduce bias or result in focus on wrong outcomes. 1
The Correct Clinical Decision-Making Algorithm
Step 1: Identify Relevant Clinical Practice Guidelines
- Search for current, high-quality guidelines from major professional societies (e.g., ACC/AHA, EAU, ASCO, AGA). 1
- Verify guideline currency, as evidence evolves rapidly and guidelines may not reflect the most recent data. 1
Step 2: Assess Guideline Applicability
- Explicitly identify whether the guideline population matches your specific patient, considering that guidelines address populations in general circumstances. 1
- Recognize that ultimate judgment regarding care must be made by the healthcare provider and patient in light of all circumstances presented. 1
Step 3: Integrate Multiple Knowledge Types
- Combine guideline recommendations with pathophysiologic rationale and clinical experience. 1
- Be able to concisely outline and justify your clinical reasoning process, articulating the sources and kinds of knowledge supporting your decision. 1
Step 4: Engage in Shared Decision-Making
- Elicit patient preferences and expectations regarding their care. 5
- Discuss treatment options and level of patient involvement in decision-making. 5
- Consider patient values, aims, and priorities regarding treatment. 5
Step 5: Use Point-of-Care Tools Appropriately
- Employ resources like UpToDate for rapid information access during clinical encounters. 4
- Use these tools to supplement, not replace, guideline-based and evidence-based decision-making. 4
Critical Pitfalls to Avoid
Don't Rely on Single Resource Types
- Relying solely on clinical experience introduces multiple biases that clinicians cannot completely avoid even with training. 1
- Experience alone does not guarantee expertise or better patient outcomes. 1
Don't Assume Guidelines Are Always Sufficient
- Guidelines may have considerable variability reflecting different methods, expertise, and contexts. 1
- Frequent use of terms like "optional" or "targeted individuals" leaves much to physician discretion. 1
Don't Ignore Context and Individual Variation
- Guidelines do not account for individual variation among patients or local resource availability and expertise. 1
- Deviations from guidelines may be appropriate in specific circumstances. 1
Don't Mechanically Apply Evidence
- Good clinical research produces knowledge that minimizes bias, but that knowledge cannot be deductively or mechanically applied to individual patients. 1
- Clinical reasoning remains essential even in the era of evidence-based medicine. 3