A patient come with chest pain radiating to back .. how can I manage her .. and what test should be done 1st
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Good content from Rosen's Emergency Medicine. Now let me read the dedicated Aortic Dissection section from Rosen's for clinical presentation, diagnosis, and management:
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I have enough content from the textbooks combined with clinical knowledge. Let me now provide a comprehensive answer.
Chest Pain Radiating to the Back — Clinical Approach
Chest pain radiating to the back is a high-stakes presentation with several life-threatening causes. The most critical to rule out first is aortic dissection, followed by ACS, PE, and others.
Step 1 — Immediate Stabilization (Before Tests)
- IV access (2 large-bore lines), oxygen, continuous cardiac monitoring
- Vitals both arms (BP difference >20 mmHg suggests aortic dissection)
- Keep NPO — surgical emergency possible
- Obtain a focused history: onset (sudden "tearing" = dissection), character, radiation, associated symptoms (syncope, neuro deficits, pulse deficits)
Step 2 — First Tests to Order (in parallel)
| Test | What it rules in/out |
|---|---|
| 12-lead ECG | ACS, STEMI, pericarditis |
| Chest X-ray (portable) | Widened mediastinum (dissection), pneumothorax, aortic knob changes |
| Troponin (serial) | Myocardial injury / NSTEMI |
| D-dimer | If PE suspected; also elevated in dissection |
| BMP / Renal panel | Baseline, end-organ perfusion |
| CBC | Anemia, infection |
| Type & Screen | Always in possible dissection — may need emergency surgery |
| Coagulation (PT/INR/PTT) | Surgical prep |
The single most important first test is ECG + CXR simultaneously — they are fast, bedside, and can immediately stratify the patient.
Step 3 — Definitive Imaging
If Aortic Dissection suspected (sudden tearing/ripping pain, back radiation, HTN, pulse/BP asymmetry, widened mediastinum):
- CT Angiography of the chest/abdomen/pelvis with contrast — the gold standard
- Identifies entry tear, extent (Type A vs B), branch vessel involvement
- Echocardiography (TEE) — excellent if CT unavailable or hemodynamically unstable; can identify aortic regurgitation, pericardial effusion
If ACS suspected:
- Serial troponins, echo, cardiology consult
If PE suspected:
- CT Pulmonary Angiography (CTPA)
Step 4 — Management of Aortic Dissection (Most Dangerous Cause)
Based on Rosen's Emergency Medicine:
Immediate Hemodynamic Goals:
- Systolic BP target: <110–120 mmHg within 30 minutes
- Heart rate target: <60 bpm
- Goal: reduce aortic wall shear stress (dP/dt)
Drug Protocol:
-
Start with IV beta-blocker FIRST (before vasodilators — to prevent reflex tachycardia)
- Esmolol: bolus 500 mcg/kg IV → maintenance 0.05–0.2 mcg/kg/min
- Labetalol (alpha + beta blocker): 20 mg IV q10 min (acceptable alternative, but less titratable — t½ 4–6 hrs)
-
Once HR <60 bpm, add vasodilator to hit BP target:
- Sodium nitroprusside, nicardipine, or clevidipine (titrate rapidly)
⚠️ Do NOT start vasodilators alone without beta-blocker — reflex tachycardia worsens the dissection
Surgical vs Medical:
| Type | Management |
|---|---|
| Type A (ascending aorta involved) | Emergency surgical repair — call cardiothoracic surgery immediately |
| Type B (descending only, uncomplicated) | Medical management (BP/HR control) |
| Type B complicated (ischemia, rupture) | Endovascular repair (TEVAR) |
Differential Diagnosis Summary
| Cause | Key Clue |
|---|---|
| Aortic dissection | Sudden tearing/ripping, back radiation, BP asymmetry, widened mediastinum |
| ACS / STEMI | Pressure/squeezing, diaphoresis, ECG changes, troponin rise |
| Pulmonary embolism | Pleuritic, dyspnea, risk factors (DVT, immobility) |
| Esophageal rupture | After vomiting (Boerhaave), subcutaneous emphysema |
| Peptic ulcer / pancreatitis | Epigastric, relation to food, amylase/lipase elevated |
Red Flags Requiring Immediate Surgery/ICU
- Pulse deficit or limb ischemia
- Neurological deficits (stroke)
- Hemodynamic instability / shock
- Widened mediastinum on CXR
- Pericardial effusion / tamponade on echo
Bottom line: Treat this as aortic dissection until proven otherwise. Stabilize vitals, order ECG + CXR + CT angio simultaneously, start IV esmolol if BP/HR elevated, type & screen, and activate cardiothoracic surgery early.
— Rosen's Emergency Medicine: Concepts and Clinical Practice | Braunwald's Heart Disease
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