ICSR Management

₊ ⊹ Patient Medical History and Adverse Events: An Analysis

Basics of pharmacovigilance
August 8, 2024 Bala 3 min read 9 Comments
Table of Contents

    This blog highlights:

    1. Definitions of Medical History and Adverse Events
    2. Distinction Between These Two Terms
    3. Effectively Identifying Differences in Case Processing to Alleviate Confusion, Illustrated with Examples

    Introduction

    Differing Medical history and Adverse event.

    Many professionals may already be familiar with the distinction between these two terms.

    However, let’s take a moment in this casual learning. The beginners, You will explore here the differences for those who may unclear about them.

    Despite the complexity, there are confusions surrounding this topic, even among experienced individuals.

    Medical History

    Let me clarify.

    In general, “history” refers to events from the past that have concluded.

    Yet, in pharmacovigilance data analysis, medical history refers to events. That are past incidents and existing conditions.

    That are historical conditions and current conditions.

    It may not necessarily have reached to an end; they may still be ongoing or relevant from a past perspective.

    It encompasses an investigation into the patient’s medical background:

    1. Prior surgical interventions
    2. Familial medical records
    3. Social background
    4. Ongoing conditions
    5. Social circumstances
    6. Historical medications
    7. Planned surgery
    📢 Recommendation: Still uncertain and confusing in analysing and event capturing from the source click here to explore more in discussing about capturing various conditions in a source file which are contradicted.

    Adverse effects

    In instances, where adverse events that are incidents occur following drug administration. That may be suspicion regarding their causality.

    ✍️ Note: In some cases, adverse events reported after the drug discontinued. In such cases, it is important to refer meticulously to the product-specific documents. This is to evaluate the temporal relationship requires consideration of the product’s half-life.

    📢 Recommendations: I highly encourage exploring the detailed discussions on the distinctions between adverse reactions and adverse events and discussing about special situations in pharmacovigilance.

    Recognizing and differentiating the discrepancies

    An example of report:

    “I’ve been prescribed medication (X) for (Y) due to certain symptoms. However, I’ve noticed that I’m experiencing more severe headaches than before since starting the medication. Additionally, I’ve been having several episodes of allergic reactions. Moreover, I’ve been dealing with acidity issues even before beginning the medication.”

    From the report above, it’s evident that the patient is specifically mentioning three complications:

    1. Headaches
    2. Allergic reactions
    3. Acidity

    Headaches: The patient reports experiencing headaches, which were present before medication but have worsened since starting the medication. Therefore, headaches are considered an adverse event due to exacerbation of the current condition. So it also a current condition.

    Allergic reactions: The patient has experienced several episodes of allergic reactions, clearly indicating an adverse event.

    Acidity: The patient reports having acidity since before taking the medication, indicating a pre-existing condition unrelated to the drug administration. Therefore, acidity is not considered an adverse event in this case. But it should be listed under patient current condition (Medical history).

    Engage Your Mind: Take the Quiz:
    Minimal Multiple Choice Quiz
    Are ADR and AE synonymous?
    • Yes
    • No
    • Similar but not the same
    Does the exacerbation of a condition constitute an adverse event?
    • Yes
    • No
    Can a diagnosed indication for which a suspected drug is administered become an adverse event?
    • Yes
    • No
    Does a product complaint become an adverse event?
    • Yes
    • No

    Wrap up

    From the above discussion, it cleared how straightforward the analysis, especially for beginners. We've aimed to simplify the process for easy comprehension. This guide serves as a valuable resource for differentiating and assessing case files.

    If you believe we've missed anything crucial or have further insights, feel free to share your comments below. Your feedback is greatly appreciated.

    Share this article

    9 Comments

    1. […] about distinguishing between a patient’s medical history and adverse events, we invite you to explore our comprehensive blog, which provides detailed explanations through Q&A sessions. and check out the blog that discusses key terms often referenced during causality assessments, […]

    2. […] Since this chapter detailing about multiple aspects in case processing, i recommend few. Firstly discussing about varying patient medical history and adverse events in the case file. Secondly detailing the the difference between ADR and AE and finally the content about action […]

    3. […] 📢 Recommendation: I highly recommend the article where we discuss in detail the various aspects of a patient’s medical history, specifically including current conditions. […]

    4. […] 📢 Eager to delve deeper into this section, particularly in elucidating the distinction between medical history and adverse events. […]

    5. […] 👩‍⚕️ Distinguishing medical conditions from AE/ADR (Learn more…) […]

    6. […] Assessments of events (To learn more…) […]

    7. […] blogs where we specifically discuss assessments within pharmacovigilance. Firstly, we explain how to differentiate between a patient’s medical history and adverse events, explore the process of causality evaluation, and discussions into the criteria for causality […]

    8. […] 📢 Recommendations: I recommend our existing article which explains the coding of adverse events and also discusses the differences between patient medical history and adverse events. […]

    9. […] Carefully assess whether the event may be related to the patient’s underlying disease. To learn more in detail… […]

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