Why Acute Myocardial Infarction Can Be Overlooked
Heart attack misdiagnosis can occur when symptoms are attributed to reflux, anxiety, or muscle pain before a cardiac cause is adequately assessed. The record must be assessed in context, including the patient’s reported symptoms, timing, objective findings, reassessments, and the information available to the treating clinician.
I am Dr. Edward Mallory, an independent Emergency Medicine physician and medical expert witness, and I welcome qualified counsel on either side to discuss the medical questions in a record.
Clinical Context in a Heart Attack Misdiagnosis Record Review
A record review begins with the presentation documented at the time of care, not with assumptions based on a later diagnosis or a patient characteristic. I examine the reported symptoms, onset and progression, risk information recorded by the treating team, vital signs, examination findings, and the differential diagnosis reflected in the chart, including frequently misdiagnosed conditions.
Symptoms associated with possible cardiac ischemia can overlap with gastrointestinal, musculoskeletal, respiratory, anxiety-related, and other conditions. The question is not whether one symptom pattern automatically proves or excludes a cardiac cause. It is whether the documented presentation reasonably prompted the assessment, testing, reassessment, consultation, observation, discharge, or admission decisions shown in the record.
Cognitive biases such as anchoring or premature closure can be useful hypotheses when the documentation appears to show that an early impression was not reconsidered as new information became available. They are not conclusions that can be inferred from an outcome alone. The record must support any opinion about the clinical reasoning process.
Individualized Assessment Rather Than Stereotypes

I assess each patient’s documented presentation individually. Age, sex, medical history, prior records, and risk factors may be clinically relevant when they were known to the treating team, but they do not substitute for an individualized evaluation of symptoms, examination findings, and available testing.
The review also considers whether the record documents meaningful reassessment when symptoms persisted, changed, or raised new concerns. A later cardiac diagnosis does not, by itself, establish that an earlier clinician failed to meet the standard of care.
Reviewing Diagnostic Testing in Context
In an emergency department or primary care record review, I examine what testing was considered or performed, why it was selected, when results became available, and how the clinician documented their interpretation in light of the patient’s presentation.
ECG and Other Objective Findings
An ECG can be an important part of evaluating possible cardiac symptoms, but its significance depends on the tracing, the patient’s symptoms, prior studies when available, and the clinical context documented at the time. I review the actual tracings and interpretations in the record rather than treating a label, isolated finding, or later outcome as dispositive.
The record may also show whether symptoms changed, whether new information was documented, and whether an earlier interpretation was reconsidered. When prior studies are available, I compare them with the current documentation only to the extent the record supports a reliable comparison.
Biomarkers, Reassessment, and Applicable Pathways
Troponin results must be interpreted in context. Relevant considerations can include the assay used, the timing of symptoms and specimen collection, the reported symptoms, repeat assessments, and the clinical pathway applicable to that setting. Whether repeat testing was appropriate is case-specific; no single test result, protocol reference, or finding alone resolves the quality of care.
I evaluate the chronology of orders, collections, result reporting, and clinician documentation. This chronology can help identify what information was available at each decision point, while also recognizing that timestamps and narrative notes do not necessarily capture every clinical discussion.
I also evaluate the record for the stated basis of the final disposition, including reassessments, consultation or referral when documented, return precautions, and the relationship between the available information and the decision to discharge, observe, admit, or transfer.
Questions an Independent Reviewer Asks of the Record
A poor clinical outcome does not, by itself, establish that care fell below the standard of care. My review focuses on the information available to the treating clinician at the time, the documented decision-making process, and whether the record supports reliable conclusions about the care provided.
| Record source | Review question | Limitations to consider |
|---|---|---|
| Triage notes and vital signs | What symptoms, concerns, and acuity were documented at presentation? | Triage documentation may be brief and may not capture later changes. |
| Clinician notes and reassessments | How did the differential diagnosis and clinical reasoning evolve? | A missing explanation in the chart may limit what can be determined about real-time reasoning. |
| ECGs, laboratory records, and imaging | What testing was obtained, when were results available, and how were they interpreted in context? | Results must be considered with the assay, timing, symptoms, applicable pathway, and available prior information. |
| Nursing notes and medication records | Were symptoms, vital signs, or responses to care reassessed and documented? | Gaps in charting can limit conclusions about unrecorded events. |
| Consultation, disposition, and discharge records | What basis was documented for admission, observation, transfer, discharge, follow-up, and return precautions? | The record may not establish every communication or clinical consideration. |
Reconstructing the Clinical Timeline
A reliable review starts by organizing records in the sequence in which events were documented. I compare the arrival history, triage documentation, clinician notes, orders, results, reassessments, and disposition materials to identify what was known at each point. This approach helps distinguish information available in real time from facts learned later.
I also examine internal consistency. For example, the chart may contain differences between a triage complaint, a nursing reassessment, and a later physician note. Such differences do not automatically establish an error. They may affect the weight that can be placed on a particular account and may require careful review of timestamps, source documents, and the completeness of the record.
Documented Decisions and Record Limitations
The review asks whether the chart explains the clinical basis for key decisions, including the diagnostic workup, reassessment, consultation, and disposition. I consider the documentation as a whole rather than isolating one phrase, result, or missing entry.
A limitation in the record may prevent a definitive conclusion about a particular event. Missing notes, incomplete timestamps, unavailable source tracings, or an undocumented communication should be identified as limitations, not filled with assumptions. Conversely, a later adverse outcome does not replace the need to evaluate what the treating clinician reasonably knew and documented at the time.
Emergency Medicine Record Reviews
I am Dr. Edward Mallory, an emergency physician board-certified by the American Osteopathic Board of Emergency Medicine since 1993. I have more than 30 years of Emergency Medicine experience, approximately 13 years of medical expert witness experience, and have reviewed over 200 medical cases for both plaintiff and defense counsel.
My formal opinions, affidavits, and testimony are strictly limited to Emergency Medicine and Primary Care clinical management. I provide objective, evidence-based medical record assessments to help counsel on both sides understand the documented clinical facts and the limits of the available evidence.
Scope and Limits of an Independent Record Review
An independent medical record review is not a substitute for care of the patient and does not recreate events that were never documented. My role is to evaluate the available materials, identify the medical questions that can be addressed, and state the limits of any conclusions fairly.
Relevant materials may include emergency department records, primary care records, ambulance documentation, nursing notes, laboratory reports, ECG tracings, imaging reports, consultation records, discharge instructions, and later records that clarify the subsequent course. The value of each source depends on its completeness, timing, and relationship to the specific decision under review.
Questions for Counsel to Consider
For a focused review, it is useful to identify the clinical decision or time period at issue and provide the available records from that period. Questions may concern the documented presentation, the basis for diagnostic testing, the response to changing information, the rationale for disposition, or the effect of missing documentation on what can be determined.
Materials and Boundaries of the Review
The available record may be incomplete. Original source materials, such as original ECG tracings, nursing documentation, laboratory timestamps, ambulance records, or records from subsequent care, can affect the scope of the analysis when they are available. I identify the materials reviewed and distinguish documented evidence from matters that cannot be reliably determined from the file.
A medical opinion also has defined boundaries. I do not offer legal advice, determine whether a party has a legal claim, or predict a legal outcome. My role is limited to an independent Emergency Medicine and Primary Care assessment of the clinical record. That assessment can help plaintiff and defense counsel understand the medical issues, the documented basis for decisions, and the limitations of the available evidence.
Conclusion
A heart attack misdiagnosis record review should separate documented facts from hindsight and identify the limits of the available evidence. I provide an independent, medically focused assessment of Emergency Medicine and Primary Care records for qualified plaintiff and defense counsel.
Contact Emergency Expert For You to discuss the medical questions and documentation in an emergency department or primary care cardiac record.
