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Cardiology

Pericarditis

Manage pericarditis by first excluding tamponade and high-risk secondary causes, then confirming active pericardial inflammation, treating uncomplicated inflammatory disease, and escalating recurrent, constrictive, purulent, tuberculous, or malignant phenotypes to targeted imaging, drainage, cause-directed therapy, or expert surgical care.

Clinical question: How should physicians triage, confirm, phenotype, treat, and monitor acute or recurrent pericarditis?

First decision

Identify tamponade and patients needing urgent inpatient evaluation

Separate a stable inflammatory syndrome from hemodynamic compromise or a high-risk secondary process.

Obtain urgent transthoracic echocardiography when pericarditis is accompanied by hypotension, tachycardia, elevated jugular venous pressure, pulsus paradoxus, syncope, progressive dyspnea, or a suspected moderate-to-large effusion. Tamponade results from pericardial fluid accumulation that impairs diastolic cardiac filling; the immediate management pathway is drainage rather than escalation of outpatient anti-inflammatory therapy. BMJHaemorrhagic Mycobacterium avium complex pericarditis ...ScienceDirectManagement of Acute and Recurrent Pericarditis: JACC State-of-the ...

Admit or expedite cardiology evaluation when the presentation raises concern for purulent, tuberculous, neoplastic, or systemic inflammatory pericarditis, because these etiologies change the role of pericardial fluid analysis, biopsy, antimicrobial or oncologic treatment, and prognosis. Early echocardiography and a low threshold for diagnostic pericardiocentesis are particularly important when septic pericarditis is possible. BMJSystematic review of culture-confirmed septic pericarditis in systemic ...PubMedDiagnostic issues in the clinical management of pericarditis - PubMedESCSecondary pericarditis: from a suspect to the management

Use the initial history to direct this branch: recent cardiac surgery, percutaneous cardiac intervention, radiation exposure, acute myocardial infarction, advanced kidney failure, known cancer, tuberculosis exposure or epidemiologic risk, and systemic autoimmune features each increase the likelihood of secondary pericarditis. The LancetPericarditis - The LancetESCSecondary pericarditis: from a suspect to the management

Initial triage features that change the pericarditis pathway. BMJSystematic review of culture-confirmed septic pericarditis in systemic ...BMJHaemorrhagic Mycobacterium avium complex pericarditis ...PubMedDiagnostic issues in the clinical management of pericarditis - PubMedESCSecondary pericarditis: from a suspect to the management
Finding or contextImmediate actionWhy it changes management
Hypotension, pulsus paradoxus, elevated jugular venous pressure, or rapidly progressive dyspneaUrgent transthoracic echocardiography; prepare for drainage if tamponade is present. BMJHaemorrhagic Mycobacterium avium complex pericarditis ...Suggests impaired diastolic filling from tamponade. BMJHaemorrhagic Mycobacterium avium complex pericarditis ...
Fever or systemic toxicity with effusionEarly echocardiography and low threshold for diagnostic pericardiocentesis. BMJSystematic review of culture-confirmed septic pericarditis in systemic ...Purulent pericarditis requires prompt microbiologic diagnosis and treatment. BMJSystematic review of culture-confirmed septic pericarditis in systemic ...PubMedDiagnostic issues in the clinical management of pericarditis - PubMed
Tuberculosis risk, cancer, autoimmune manifestations, renal failure, radiation, or recent cardiac injuryUse targeted etiologic testing and specialty-directed management. PubMedDiagnostic issues in the clinical management of pericarditis - PubMedESCSecondary pericarditis: from a suspect to the managementA specific cause may require treatment beyond anti-inflammatory therapy. PubMedDiagnostic issues in the clinical management of pericarditis - PubMedESCSecondary pericarditis: from a suspect to the management

Diagnostic confirmation

Confirm active pericardial inflammation and assess myocardial involvement

Do not label unexplained chest pain as pericarditis without objective corroboration.

For a definite clinical diagnosis, use a compatible presentation of chest pain and/or dyspnea plus more than one additional criterion: pericardial friction rub; PR depression and/or diffuse ST-segment elevation on ECG; elevated C-reactive protein; new or worsening pericardial effusion; or pericardial edema and/or late gadolinium enhancement on cardiac magnetic resonance imaging. A compatible presentation with only one additional criterion supports possible rather than definite pericarditis; symptoms without an additional criterion make the diagnosis unlikely. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adults

At presentation, obtain ECG, CRP, and transthoracic echocardiography to document electrical, inflammatory, and effusion evidence and to assess for hemodynamic consequences. ECG and imaging abnormalities, inflammatory biomarkers, a friction rub, and pericardial fluid or inflammation on echo, CT, or MRI are all used as objective evidence in contemporary pericarditis assessment. BMJArtificial intelligence based multimodal fusion of electronic medical ...cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...

Use cardiac MRI when the diagnosis remains uncertain after clinical evaluation, ECG, inflammatory biomarkers, and echocardiography, or when recurrent symptoms require evidence of ongoing inflammation before intensifying immunomodulatory treatment. Pericardial delayed enhancement is described as the most sensitive diagnostic method for acute pericarditis, while pericardial edema or late gadolinium enhancement supports active disease. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adultsWileyPharmacotherapy Update of Acute Idiopathic Pericarditis

Measure cardiac troponin when myocardial involvement is clinically plausible. Elevated myocardial biomarkers, new arrhythmia on ECG or telemetry, echocardiographic abnormalities, and cardiac MRI abnormalities are features used to identify myocarditis in patients with suspected myopericarditis; their presence should shift assessment beyond isolated pericardial disease. WileyMyopericarditis and Pericardial Effusion as the Initial Presentation of ...cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...

Tests that establish disease activity or alter the diagnostic branch. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adultsWileyMyopericarditis and Pericardial Effusion as the Initial Presentation of ...WileyPharmacotherapy Update of Acute Idiopathic Pericarditiscdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...
TestActionable resultNext decision
12-lead ECGPR depression and/or widespread ST-segment elevation supports pericarditis. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adultsIntegrate with symptoms and other criteria; assess rhythm abnormalities if myocardial involvement is suspected. cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...
C-reactive proteinElevation supports active pericardial inflammation. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adultsUse with clinical findings and follow longitudinally when monitoring inflammatory activity. cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...
Transthoracic echocardiographyNew or worsening effusion supports diagnosis; hemodynamic consequences redirect to tamponade management. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adultsBMJHaemorrhagic Mycobacterium avium complex pericarditis ...Determine urgency of drainage and whether a secondary cause needs invasive sampling. BMJSystematic review of culture-confirmed septic pericarditis in systemic ...PubMedDiagnostic issues in the clinical management of pericarditis - PubMed
Cardiac MRIPericardial edema or late gadolinium enhancement supports active inflammation; delayed enhancement is highly sensitive. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adultsWileyPharmacotherapy Update of Acute Idiopathic PericarditisUse to resolve diagnostic uncertainty or document inflammation in recurrent disease. WileyRecent advances in multimodality imaging‐guided therapy in ...
Troponin and myocardial assessmentBiomarker elevation, arrhythmia, imaging, or echo abnormalities suggest myopericarditis. cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...Expand evaluation beyond isolated pericarditis. WileyMyopericarditis and Pericardial Effusion as the Initial Presentation of ...cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...

Classify the clinical course before changing treatment

Classify symptoms continuing for at least 4 weeks but less than 3 months without remission as incessant pericarditis; classify recurrence only after a documented first episode and a symptom-free interval of at least 4 weeks; classify disease lasting longer than 3 months as chronic. This distinction prevents mislabeling incompletely controlled initial inflammation as a recurrence and supports an appropriately prolonged anti-inflammatory strategy. ScienceDirectAcute Pericarditis - an overview | ScienceDirect Topics

Targeted cause search

Choose etiologic testing from the risk pattern rather than routinely testing every patient

Most first attacks are idiopathic or presumed viral; targeted testing is reserved for presentations in which results change treatment.

In an uncomplicated first episode without epidemiologic, historical, clinical, or echocardiographic clues to a secondary cause, extensive etiologic testing usually does not alter management. Most cases remain idiopathic or presumed viral even after broad testing, and identifying a causative virus is generally futile because it does not change treatment. PubMedDiagnostic issues in the clinical management of pericarditis - PubMedESCSecondary pericarditis: from a suspect to the management

Escalate to a directed search for tuberculosis, purulent infection, malignancy, or systemic inflammatory disease when the presentation is atypical, severe, recurrent, or accompanied by a compatible exposure history, cancer, systemic features, or concerning effusion. The diagnostic objective is to identify conditions in which antimicrobials, cancer-directed therapy, renal replacement optimization, cessation of an offending drug, or systemic immunomodulation may be required. PubMedDiagnostic issues in the clinical management of pericarditis - PubMedESCSecondary pericarditis: from a suspect to the managementPubMedDrug-Induced Lupus Erythematosus - StatPearls - NCBI Bookshelf

In patients with arthralgia, myalgia, fever, rash, constitutional symptoms, or serositis and prolonged exposure to a potential culprit medication, review the drug timeline and evaluate for drug-induced lupus. Antinuclear antibodies and antihistone antibodies commonly support the diagnosis; stopping the responsible medication generally leads to symptom resolution. PubMedDrug-Induced Lupus Erythematosus - StatPearls - NCBI Bookshelf

Etiologic patterns requiring a cause-directed pathway. BMJSystematic review of culture-confirmed septic pericarditis in systemic ...The LancetA single-cell and spatial transcriptomic atlas of human tuberculous ...PubMedDiagnostic issues in the clinical management of pericarditis - PubMedESCSecondary pericarditis: from a suspect to the managementPubMedDrug-Induced Lupus Erythematosus - StatPearls - NCBI Bookshelf
PatternDiagnostic emphasisManagement consequence
Septic or toxic presentation with effusionEarly echocardiography and diagnostic pericardiocentesis. BMJSystematic review of culture-confirmed septic pericarditis in systemic ...Obtain microbiologic diagnosis promptly; do not manage as uncomplicated idiopathic pericarditis. BMJSystematic review of culture-confirmed septic pericarditis in systemic ...PubMedDiagnostic issues in the clinical management of pericarditis - PubMed
Tuberculosis exposure or compatible epidemiologyDirected tuberculosis evaluation and assessment for constrictive complications. The LancetA single-cell and spatial transcriptomic atlas of human tuberculous ...PubMedDiagnostic issues in the clinical management of pericarditis - PubMedRequires etiologic therapy and surveillance for constrictive physiology. The LancetA single-cell and spatial transcriptomic atlas of human tuberculous ...ESCSecondary pericarditis: from a suspect to the management
Known malignancy or active cancer therapyAssess the effusion for malignant disease and treatment-related injury. ESCSecondary pericarditis: from a suspect to the managementCancer-directed evaluation may supersede routine anti-inflammatory management. ESCSecondary pericarditis: from a suspect to the management
Autoimmune symptoms or prolonged culprit-drug exposureSystemic evaluation; ANA and antihistone antibodies when drug-induced lupus is suspected. PubMedDrug-Induced Lupus Erythematosus - StatPearls - NCBI BookshelfWithdraw the offending medication and manage the associated systemic disorder. PubMedDrug-Induced Lupus Erythematosus - StatPearls - NCBI Bookshelf

Inflammatory phenotype

Treat uncomplicated acute and recurrent inflammatory pericarditis with anti-inflammatory therapy and colchicine

Use anti-inflammatory treatment only after urgent hemodynamic and cause-specific branches have been addressed.

Anti-inflammatory drugs are the mainstay of treatment for acute and recurrent pericarditis. For recurrent disease, prolonged NSAID therapy is generally used, and colchicine may be added to NSAID therapy or used as monotherapy when NSAID treatment is unsuitable. ScienceDirectManagement of Acute and Recurrent Pericarditis: JACC State-of-the ...jtcvsJournal of the American Society of Echocardiography

For acute pericarditis, colchicine has randomized-trial evidence of effectiveness when added to conventional anti-inflammatory treatment. A cited regimen is colchicine 1 mg/day for 3 months, with or without a 2-mg loading dose; the trial literature also describes guideline-era doses of 2 mg/day for 1 to 2 days as loading treatment. Select dose and loading strategy cautiously rather than defaulting to loading in every patient. NEJMA Randomized Trial of Colchicine for Acute PericarditisScienceDirectAcute Pericarditis - an overview | ScienceDirect Topics

Before prescribing colchicine, review renal, hepatic, gastrointestinal, hematologic, and cardiac comorbidity and review interacting medications. Reported adverse effects include diarrhea, nausea, abdominal pain, elevated transaminases, alopecia, and less commonly bone marrow suppression, hepatotoxicity, and myotoxicity; severe renal, gastrointestinal, hepatic, or cardiac disorders and blood dyscrasias are listed contraindications in the cited review. ScienceDirectAcute Pericarditis - an overview | ScienceDirect Topics

In recurrent disease, distinguish persistent inflammation from noninflammatory chest pain before extending or escalating therapy. Reassess symptoms, CRP, ECG, echocardiography, and cardiac MRI when needed; MRI evidence of active pericardial edema or late gadolinium enhancement supports an inflammatory target for treatment. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adultsWileyPharmacotherapy Update of Acute Idiopathic PericarditisWileyRecent advances in multimodality imaging‐guided therapy in ...

Treatment selection for the inflammatory pericarditis phenotype. NEJMA Randomized Trial of Colchicine for Acute PericarditisScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac ImagingScienceDirectManagement of Acute and Recurrent Pericarditis: JACC State-of-the ...ScienceDirectAcute Pericarditis - an overview | ScienceDirect TopicsjtcvsJournal of the American Society of Echocardiography
Clinical settingTreatment actionKey limitation or monitoring issue
Uncomplicated acute pericarditisUse anti-inflammatory therapy; add colchicine, with a cited 1 mg/day for 3 months regimen. NEJMA Randomized Trial of Colchicine for Acute PericarditisScienceDirectManagement of Acute and Recurrent Pericarditis: JACC State-of-the ...ScienceDirectAcute Pericarditis - an overview | ScienceDirect TopicsAssess gastrointestinal tolerance and contraindicating renal, hepatic, gastrointestinal, cardiac, or hematologic disorders. ScienceDirectAcute Pericarditis - an overview | ScienceDirect Topics
Recurrent inflammatory pericarditisUse a prolonged NSAID course; add colchicine or use colchicine monotherapy when NSAIDs are unsuitable. jtcvsJournal of the American Society of EchocardiographyConfirm active inflammation with clinical findings, CRP, and selective CMR before escalation. ScienceDirectRecurrent pericarditis in children: Clinical and therapeutic differences from adultsWileyPharmacotherapy Update of Acute Idiopathic Pericarditis
Refractory recurrent disease despite optimal therapyRefer for multidisciplinary assessment and consideration of targeted anti-IL-1 therapy. ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac ImagingDo not bypass evaluation for secondary infection, malignancy, systemic disease, or constrictive physiology. PubMedDiagnostic issues in the clinical management of pericarditis - PubMedESCSecondary pericarditis: from a suspect to the management

When to move beyond conventional therapy

Refer patients with refractory recurrent pericarditis despite optimal medical therapy for expert evaluation, particularly when multimodality imaging documents persistent inflammation or complications. Contemporary imaging literature identifies targeted anti-IL-1 therapy as a therapeutic advance in autoinflammatory pericarditis, but agent selection, dosing, screening, and monitoring should follow specialist and current product-specific guidance. ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac ImagingWileyRecent advances in multimodality imaging‐guided therapy in ...

Complication management

Recognize effusive-constrictive and chronic constrictive disease before symptoms are attributed to recurrent inflammation

Persistent congestion or impaired filling after an effusion changes the problem from simple inflammation to a structural-hemodynamic assessment.

Consider effusive-constrictive pericarditis when clinical hemodynamic compromise persists in the setting of pericardial fluid because the visceral pericardium can continue to compress the heart despite the effusion. This phenotype requires imaging-based hemodynamic assessment and should not be managed solely by repeated empiric anti-inflammatory courses. acpjournalsEffusive Constrictive Pericarditis in the Era of COVID-19ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac Imaging

Evaluate suspected constrictive pericarditis with echocardiography and complementary cardiac CT or MRI when anatomy, inflammation, and constrictive physiology remain uncertain. Multimodality imaging is specifically relevant for recurrent, transient constrictive, and effusive-constrictive pericarditis and helps distinguish potentially inflammatory disease from chronic or irreversible constriction. ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac ImagingWileyConstrictive Pericarditis as a Rare Manifestation of Graft‐Versus ...WileyRecent advances in multimodality imaging‐guided therapy in ...

For chronic or irreversible constrictive pericarditis, and for refractory recurrent pericarditis despite optimal medical therapy, refer for multidisciplinary pericardiectomy assessment. When surgery is appropriate, radical pericardiectomy on cardiopulmonary bypass is preferred if feasible, and procedures should be performed at high-volume centers with appropriate expertise. ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac Imaging

Follow patients according to their initial objective abnormalities. A structured approach includes repeat CRP and cardiac biomarkers and repeating ECG, Holter monitoring, echocardiography, or MRI when the corresponding baseline study was abnormal; longitudinal visits at 3 months, 12 months, and annually are used in a myocarditis/pericarditis follow-up protocol. cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...

Complication-directed follow-up and escalation. The LancetA single-cell and spatial transcriptomic atlas of human tuberculous ...acpjournalsEffusive Constrictive Pericarditis in the Era of COVID-19ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac Imagingcdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...
Clinical problemAssessmentEscalation
Persistent hemodynamic impairment with effusionAssess for effusive-constrictive pericarditis using imaging and hemodynamic evaluation. acpjournalsEffusive Constrictive Pericarditis in the Era of COVID-19ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac ImagingAvoid treating persistent compression as uncomplicated recurrent inflammation. acpjournalsEffusive Constrictive Pericarditis in the Era of COVID-19
Suspected constrictive physiologyUse echocardiography and complementary CT or MRI when needed. ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac ImagingWileyConstrictive Pericarditis as a Rare Manifestation of Graft‐Versus ...Determine whether disease is transient/inflammatory or chronic/irreversible. ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac Imaging
Chronic or irreversible constrictionMultidisciplinary surgical evaluation. ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac ImagingPericardiectomy at a high-volume center; radical resection on cardiopulmonary bypass is preferred if feasible. ScienceDirectPericardial Diseases: International Position Statement on New Concepts and Advances in Multimodality Cardiac Imaging
Prior myocardial or rhythm abnormalityRepeat relevant biomarker, ECG, Holter, echo, or MRI testing during follow-up. cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...Monitor for persistent or recurrent myocardial involvement. cdn clinicaltrials[PDF] MYocarditis and/or pericarditis following mRNA COVID-19 ...

References

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