Patient handout

Cardiac tamponade — late post-radiation effusive-constrictive pericarditis

PRODUCTION

1. Your condition

This handout is for cardiac tamponade — late post-radiation effusive-constrictive pericarditis. Your care team identified this based on: cancer survivor (hodgkin lymphoma mantle field, left-sided breast, lung, esophageal) 5-20+ years post-mediastinal radiation presenting with insidious progressive dyspnea + peripheral edema + ascites + fatigue (esc 2015 §effusive-constrictive + §radiation-induced; lyon ehj 2022 pmid 35993161).

Other reasons your team may use this plan: echo with pericardial effusion + septal bounce + tissue doppler annulus reversus + dilated ivc + kussmaul respiratory variation in radiation survivor (talreja circulation 2003; esc 2015); cardiac mri showing pericardial thickening >4 mm + late gadolinium enhancement + tethering of pericardium to myocardium in patient 5+ years post-radiation (lyon ehj 2022; heidenreich jacc 2010); persistent elevated jvp and right atrial pressure after apparently successful pericardiocentesis in radiation survivor — pathognomonic for effusive-constrictive (sagristà-sauleda nejm 2004 pmid 14749453).

2. Your medications

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
furosemide	40-80 mg IV/PO daily; titrate to 1-2 kg/d weight loss until euvolemic	IV/PO	daily-BID	ESC 2015 + Lyon EHJ 2022 — first-line for volume management bridge to pericardiectomy; titrate aggressively to euvolemia to optimize surgical candidacy
spironolactone	25-50 mg PO daily	PO	daily	Synergistic diuresis with loop; aldosterone-mediated retention common in chronic congestive states; helpful for cardiac cirrhosis ascites (ESC 2015)
metolazone	2.5-5 mg PO daily 30 min before loop	PO	daily	Sequential nephron blockade for refractory volume overload bridge to surgery (ESC 2015)
ibuprofen	600 mg PO TID × 2 wk if active inflammation on CMR (LGE + edema)	PO	TID	ESC 2015 + ICAP PMID 23992557 — anti-inflammatory if CMR shows active inflammation; AVOID if eGFR <30 or pre-renal AKI from low-output state
colchicine	0.5 mg BID (0.5 mg daily if <70 kg or eGFR 30-60) × 3 mo	PO	BID	ICAP (Imazio NEJM 2013 PMID 23992557) + CORP (Imazio Ann Intern Med 2011 PMID 21788540) — RR 0.62 for recurrence; helpful for inflammatory component
rilonacept	320 mg SC loading then 160 mg SC weekly maintenance	SC	weekly	RHAPSODY (Klein NEJM 2021 PMID 33999548) — IL-1 trap for refractory recurrent pericarditis; particularly useful in radiation survivors where corticosteroids contraindicated
acetaminophen	650-1000 mg q6h scheduled	PO	q6h	Alternative analgesic when NSAIDs contraindicated (renal impairment, anticoagulation)
warfarin	2.5-5 mg PO daily INR target 2-3	PO	daily	AF common in long-term radiation survivors due to atrial fibrosis; CHA2DS2-VASc guides anticoagulation; warfarin preferred over DOAC peri-pericardiectomy for reversibility
norepinephrine	0.05-0.1 µg/kg/min titrate MAP ≥65	IV	continuous	Bridge for decompensated effusive-constrictive with hypotension while expediting pericardiectomy; does not address obstruction (Roy JAMA 2007)
albumin	25 g IV q12h	IV	q12h	Adjunct for diuretic-resistant volume overload with hypoalbuminemia from cardiac cirrhosis; modest evidence

Plan: Late post-radiation effusive-constrictive pericarditis — diuretic bridge + anti-inflammatory for active inflammation + pericardiectomy as definitive (ESC 2015 §Effusive-Constrictive + §Radiation-Induced; Lyon EHJ 2022 PMID 35993161; Bertog EHJ 2004 PMID 15010459)

3. When to call your provider

Contact your care team if any of the following happen:

Recurrent inflammatory pericarditis → NSAID + colchicine + escalate to rilonacept if failing
Constrictive deterioration → cardiothoracic surgery for re-evaluation (rare post-radical pericardiectomy)
New cancer recurrence → multidisciplinary reassessment
Late radiation cardiotoxicity (CAD, valvular disease, restrictive CMP) → cardiology workup
Tamponade recurrence → re-route to acute pathway
AF onset → CHA2DS2-VASc + AC initiation per AHA/ACC/HRS 2023

4. When to seek emergency care

Call 911 or go to the nearest emergency room right away if you have:

Persistent elevated right atrial pressure / JVP after apparently successful pericardiocentesis in late radiation survivor — PATHOGNOMONIC for effusive-constrictive pericarditis; pericardiectomy required for definitive treatment (Sagristà-Sauleda NEJM 2004 PMID 14749453; ESC 2015 §Effusive-Constrictive)
Progressive constrictive decompensation with cardiac cirrhosis (elevated LFTs, ascites, hyperbilirubinemia, hypoalbuminemia) in late radiation survivor — pericardiectomy mandatory for survival; high-risk in radiation tissue (ESC 2015; Bertog EHJ 2004 PMID 15010459)
Surgical decision-making for pericardiectomy in radiation-damaged tissue with effusive-constrictive physiology — multidisciplinary balance of refractory symptoms vs operative mortality 10-20% with radical pericardiectomy preferred (Bertog EHJ 2004 PMID 15010459; Welch Mayo Clin Proc 2008; Murashita Ann Thorac Surg 2017)
Cancer recurrence vs radiation late effect attribution challenge in patient with prior chest radiation 5-20+ years ago presenting with effusive-constrictive pattern — comprehensive workup mandatory before high-risk surgery (Lyon EHJ 2022)

6. Sources

Guideline: 2015 ESC Guidelines for the diagnosis and management of pericardial diseases (Adler EHJ 2015 PMID 26320112) §Effusive-Constrictive + §Radiation-Induced Pericarditis remain current as of 2026-05-15; 2022 ESC Cardio-oncology Guideline (Lyon EHJ 2022 PMID 35993161) anchors cancer survivorship surveillance + pericardial disease management; Sagristà-Sauleda NEJM 2004 PMID 14749453 is the original effusive-constrictive description; Bertog EHJ 2004 PMID 15010459 anchors pericardiectomy outcomes in radiation; Welch Mayo Clin Proc 2008 + Murashita Ann Thorac Surg 2017 anchor long-term surgical outcomes; Hancock JAMA 1993 PMID 8455714 + Aleman JCO 2003 PMID 12586791 + Heidenreich JACC 2010 PMID 19789419 + Darby NEJM 2013 PMID 23484825 anchor radiation cardiotoxicity epidemiology; ICAP (Imazio NEJM 2013 PMID 23992557) + RHAPSODY (Klein NEJM 2021 PMID 33999548) anchor anti-inflammatory therapy.