MissedPulmonaryEmbolism

Pulmonary embolism is a diagnosis that rewards explicit risk stratification and punishes clinical gestalt. The symptoms overlap substantially with benign conditions, and the consequences of missing the diagnosis are severe. Common drivers of missed diagnosis:

• Non-specific presentation. Classic teaching — sudden severe dyspnea, pleuritic chest pain, hemoptysis — is actually uncommon. Most PEs present with milder dyspnea, vague chest discomfort, or isolated tachycardia. Atypical presentations are the norm.
• Anchoring on alternative diagnoses. Once a benign explanation is entertained (anxiety, musculoskeletal pain, bronchitis, reflux), the evidence for PE may be discounted. Anchoring on anxiety in young women with dyspnea is a documented failure pattern.
• Failure to apply Wells score. The Wells score converts clinical features into a probability estimate that drives the diagnostic algorithm. Skipping it — or failing to document the components — is increasingly recognized as a standard-of-care breach.
• Failure to apply PERC criteria. The Pulmonary Embolism Rule-out Criteria can exclude PE in very-low-probability patients without D-dimer. Misapplying PERC to higher-probability patients, or using it to justify not ordering any workup at all, is a recognized failure.
• Normal chest X-ray treated as reassuring. Chest X-ray is neither sensitive nor specific for PE. Most PEs have no abnormal chest-X-ray finding. Treating a normal X-ray as ruling out PE is a diagnostic error.
• Risk factors not elicited. Recent surgery, immobilization, long-haul travel, estrogen use, pregnancy, cancer history, prior DVT or PE — these are the risk factors that raise pre-test probability. Not asking about them is part of the problem.
• Single D-dimer mishandled. A positive D-dimer in the appropriate context demands further imaging. A negative D-dimer in a high-probability patient still requires imaging. Misinterpreting or ignoring the result is a recurring error.

PE diagnosis has been the subject of extensive clinical-practice guidelines from the American College of Chest Physicians, the European Society of Cardiology, and the American College of Emergency Physicians. The core expectations:

• Risk-factor history. Explicit questioning about recent surgery, trauma, immobilization, malignancy, hormone therapy, pregnancy, prior DVT or PE, long-distance travel, family history of clotting disorders.
• Structured risk stratification. Wells score or revised Geneva score to assign low, intermediate, or high pre-test probability. The score is not optional in well-run ERs — it is documented.
• PERC criteria in low-probability patients. The Pulmonary Embolism Rule-out Criteria can rule out PE in very-low-probability patients who meet all eight criteria. Used correctly, PERC can avoid unnecessary testing; used incorrectly, it can justify missed diagnoses.
• D-dimer in intermediate probability. High-sensitivity D-dimer (with appropriate age-adjustment in older patients) rules out PE when negative in intermediate-probability patients. A positive D-dimer in any context demands imaging.
• CT pulmonary angiography. The imaging standard for PE diagnosis. CT-PA directly visualizes clot in the pulmonary arteries. Alternatives — V/Q scan, lower-extremity ultrasound — have specific indications in patients where CT-PA is contraindicated (renal dysfunction, pregnancy).
• Empiric anticoagulation in high-probability patients. When pre-test probability is high and imaging will be delayed, empiric anticoagulation pending imaging is appropriate — not waiting for the definitive diagnosis while the patient continues to throw clot.
• Risk stratification of confirmed PE. Once PE is diagnosed, risk-stratify for massive vs submassive vs low-risk with troponin, BNP, and echocardiogram. Massive PE demands thrombolysis or embolectomy. Submassive PE requires close ICU monitoring.

Departures from these expectations — particularly discharge of a patient with unexplained dyspnea, pleuritic chest pain, or tachycardia without either applying the Wells score or ordering a D-dimer — are the substance of most missed-PE malpractice cases.

PE risk factors stratify into categories that frontline providers should recognize:

• Surgical and trauma. Orthopedic surgery (hip and knee replacement especially), abdominal and pelvic surgery, major trauma. Risk peaks in the first 4-6 weeks post-operatively.
• Malignancy. Active cancer is one of the strongest PE risk factors. Pancreatic, brain, ovarian, lung, and hematologic malignancies carry the highest rates. Chemotherapy further increases risk.
• Immobilization. Prolonged bed rest, cast immobilization, paralysis, or inability to ambulate significantly raises venous stasis and PE risk.
• Hormone therapy and pregnancy. Combined oral contraceptives, hormone replacement, and pregnancy (particularly postpartum) are significant risk factors. The pregnancy-related PE is a recurring missed diagnosis because pregnancy itself causes dyspnea.
• Prior VTE. Prior DVT or PE is one of the strongest predictors of recurrence. A patient with prior PE presenting with new dyspnea is a high-probability case until proven otherwise.
• Hereditary thrombophilia. Factor V Leiden, prothrombin gene mutation, protein C/S deficiency, antithrombin III deficiency. Often emerges in family history.
• Obesity. Especially BMI over 30, and particularly in combination with other risk factors.
• Age. PE incidence rises steeply with age. Very elderly patients often present atypically.
• Long-distance travel. Long-haul flights and extended car trips with immobility.

Failing to elicit these risk factors on history — and therefore failing to raise pre-test probability appropriately — is frequently at the root of a missed PE. Wells scores that omit documented cancer, recent surgery, or immobilization produce falsely low probabilities and justify inappropriate discharge.

Missed-PE cases are document-driven. Essential records:

• Initial ER or urgent-care record. Triage note, chief complaint, vital signs (pulse-ox, respiratory rate, heart rate — tachycardia is particularly important), documented risk-factor history, physician or mid-level note, differential diagnosis considered, workup ordered, results interpreted, discharge diagnosis.
• Wells-score applicable factors. Whether the record documents the components of the Wells score — clinical signs of DVT, PE most likely diagnosis, heart rate, immobilization or surgery, prior PE/DVT, hemoptysis, malignancy — or conspicuously omits them.
• Subsequent confirming record. The ER visit, hospitalization, or autopsy that diagnosed PE. CT-PA (or V/Q scan), D-dimer results, troponin, BNP, echocardiogram, pulmonary or critical-care notes, discharge summary.
• Original imaging. Where any chest CT was obtained at the initial visit, the DICOM files allow second-read review for PE that may have been visible but unreported.
• Autopsy report. In fatal cases, the autopsy confirms PE as cause of death and documents clot burden — supporting both diagnosis and causation.

Under Florida Statute § 766.102, a corroborating expert affidavit is mandatory. For missed-PE cases, that expert is typically a board-certified emergency physician; a pulmonologist or intensivist is often retained for causation and damages.

Common defendants in missed-PE cases:

• Emergency physician. Typically the primary defendant for the clinical decision to discharge without PE workup.
• PA or NP. Where the primary evaluation was by a physician assistant or nurse practitioner, both the mid-level and the supervising physician face potential liability.
• Triage nurse. Where inadequate triage failed to flag vital-sign abnormalities (tachycardia, hypoxia) that should have escalated evaluation.
• Consulting physician. Hospitalist or pulmonologist consulted by the ER whose opinion contributed to discharge.
• Radiologist. Where CT or V/Q imaging was performed and the PE was visible but not reported. Second-read review by an independent radiologist often reveals findings.
• Hospital. Vicariously liable for employed providers; directly liable for systemic failures — inadequate PE protocols, understaffed imaging, defective equipment.
• Emergency medicine contract group. Separate corporate entity with its own insurance.

Florida\'s comparative-fault apportionment lets the jury allocate fault. Leaving out a party can cause fault to fall to an empty chair and reduce recovery.

PE damages vary dramatically between surviving and fatal cases. In surviving cases:

• Past medical expenses — ICU admission, anticoagulation, any thrombolysis or embolectomy, workup of any chronic complications.
• Future medical expenses — long-term anticoagulation management, treatment of chronic thromboembolic pulmonary hypertension (CTEPH) in patients who develop it, ongoing cardiology or pulmonology follow-up.
• Lost earnings during the acute hospitalization and recovery.
• Lost earning capacity where the patient is left with reduced exercise tolerance, right-heart dysfunction, or CTEPH.
• Pain and suffering for the event itself, the ongoing anxiety about recurrence, the physical limits. Uncapped in Florida after North Broward Hospital District v. Kalitan, 219 So. 3d 49 (Fla. 2017).
• Loss of consortium for a spouse.

In fatal cases, the Wrongful Death Act provides the recovery framework. Eligible survivors — spouse, minor children, dependent parents — can recover mental pain and suffering, loss of support and companionship, medical and funeral expenses, and lost net accumulations of the estate. Given that PE mortality is often sudden and in otherwise-healthy adults, fatal-PE cases frequently involve high-earning decedents with substantial lost-support and lost-accumulations components.

Florida Statute § 95.11(4)(b) governs medical malpractice limitations. In fatal missed-PE cases, Florida\'s Wrongful Death Act provides a separate two-year statute running from the date of death. The 90-day pre-suit investigation period and § 766.102 corroborating expert affidavit are mandatory procedural gates before suit can be filed.

The earlier a Florida family pursues the records with a malpractice attorney, the more thorough the investigation can be before limitations narrow filing options. Strong missed-PE cases are typically developed within the first year after the correct diagnosis or the death.

If you or a family member was discharged from an ER or urgent care with a diagnosis of anxiety, bronchitis, costochondritis, or "atypical chest pain" and then subsequently diagnosed with PE — or died of a PE after the earlier visit — the next steps:

1. Preserve the initial ER or urgent-care record. Triage note, physician or mid-level note, documented symptoms, vital signs (especially heart rate and pulse-ox), any testing performed, discharge diagnosis and instructions.
2. Preserve the confirming record. The ER visit, hospitalization, or autopsy that confirmed the PE. CT-PA, D-dimer, troponin, echocardiogram, consultation notes.
3. Save original imaging files. DICOM files of any initial chest CT. Second-read review may reveal clot that was visible but not reported.
4. Document risk factors. Recent surgery, immobilization, travel, hormone therapy, pregnancy, prior DVT/PE, cancer, family history. The risk factors that should have been elicited.
5. Consult a Florida medical malpractice attorney. The consultation is free. A qualified firm will engage ER and pulmonary experts to reconstruct whether Wells-score-guided workup would have diagnosed the PE in time.