This handout is for cardiac tamponade — type a aortic dissection-related (hemopericardium). Your care team identified this based on: sudden tearing chest/interscapular back pain + beck triad (hypotension + jvd + muffled heart sounds) — type a dissection with tamponade until proven otherwise (acc/aha 2022 pmid 36066317).
Other reasons your team may use this plan: stat tte: aortic root dissection flap + pericardial effusion + rv diastolic collapse → type a dissection-related tamponade (class i; acc/aha 2022; esc 2014); cta chest (definitive when stable enough): ascending aorta dissection flap + hemopericardium → emergent cardiothoracic surgery (hagan irad jama 2000); bp/pulse differential between extremities + new hemodynamic instability → suspect dissection with branch-vessel malperfusion + possible tamponade overlay (esc 2014; acc/aha 2022).
Take these medications exactly as prescribed. Do not stop or change a dose without talking to your provider.
| Medication | Starting dose | How | When | What it does |
|---|---|---|---|---|
| esmolol | 500 µg/kg IV bolus over 1 min then 50 µg/kg/min infusion titrate to HR <60 | IV | continuous infusion | ACC/AHA 2022 Class I — short-acting BB first to reduce HR + dP/dt; titratability critical given hemodynamic lability. Achieve HR <60 BEFORE adding vasodilator (Erbel ESC 2014). |
| labetalol | 10-20 mg IV bolus then 0.5-2 mg/min infusion titrate | IV | bolus + infusion | ACC/AHA 2022 — alternative first-line; combined alpha/beta blockade for SBP + HR control simultaneously |
| nicardipine | 5 mg/h IV titrate to SBP <120 (max 15 mg/h) | IV | continuous infusion | ACC/AHA 2022 Class I — ADD vasodilator ONLY after BB-induced HR control to prevent reflex tachycardia + dP/dt rise; isolated vasodilator AVOIDED |
| norepinephrine | 0.05-0.1 µg/kg/min titrate to MAP ≥65 — CAUTIOUS, propagates dissection at higher doses | IV | continuous | Bridge only — does not address tamponade obstruction OR dissection; titrate to LOWEST dose maintaining cerebral + coronary perfusion (Roy JAMA 2007; ACC/AHA 2022) |
| acetaminophen | 1000 mg IV (max 4 g/24h) | IV | q6h scheduled | Pain reduction reduces sympathetic surge → reduces dP/dt + propagation risk (ACC/AHA 2022) |
| fentanyl | 25-50 µg IV q5-10 min titrate | IV | as needed | Reduces sympathetic surge + dP/dt; titratable + short half-life appropriate for surgical staging (ACC/AHA 2022) |
| protamine | 1 mg per 100 U residual heparin (max 50 mg single dose) | IV slow | pre-procedure if recent UFH | Reverse residual UFH from anticoagulation prior to OR or bridge drainage if active (ACC/AHA 2022) |
| 4-factor prothrombin complex concentrate | 25-50 U/kg based on INR | IV | single dose pre-OR | Emergent reversal pre-cardiac surgery if anticoagulated |
Plan: Type A dissection tamponade — anti-impulse therapy first + LIMITED pericardiocentesis bridge ONLY + emergent OR (ACC/AHA 2022; Hayashi Circ J 2012)
Contact your care team if any of the following happen:
Call 911 or go to the nearest emergency room right away if you have:
Guideline: 2022 ACC/AHA Aortic Disease Guideline (Isselbacher Circulation 2022 PMID 36066317) + 2014 ESC Aortic Disease Guideline (Erbel EHJ 2014 PMID 25173340) — remains current as of 2026-05-15. International Registry of Acute Aortic Dissection (IRAD; Hagan JAMA 2000 PMID 10685714 + Trimarchi updates) anchors mortality + outcome data; Hayashi Circ J 2012 + IRAD subgroup analyses anchor limited pericardiocentesis bridge controversy. ESC 2015 pericardial guideline (Adler EHJ 2015 PMID 26320112) cross-references for tamponade physiology baseline.