Alessandra Vecchié1, Juan G Chiabrando2, Megan S Dell3, Aldo Bonaventura1, Adolfo G Mauro4, George Wohlford5, Benjamin W Van Tassell5, Daniel H Berrocal6, Fabrizio Montecucco7, Anna Beutler8, John F Paolini8, Tamas S Gal3, Antonio Abbate9. 1. Pauley Heart Center, Virginia Commonwealth University, Richmond, VA; First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy. 2. Pauley Heart Center, Virginia Commonwealth University, Richmond, VA; Interventional Cardiology Department, Hospital Italiano of Buenos Aires, Buenos Aires, Argentina. 3. Department of Biostatistics, Virginia Commonwealth University, Richmond, VA. 4. Pauley Heart Center, Virginia Commonwealth University, Richmond, VA. 5. Department of Pharmacotherapy and Outcome Sciences, Virginia Commonwealth University, Richmond, VA. 6. Interventional Cardiology Department, Hospital Italiano of Buenos Aires, Buenos Aires, Argentina. 7. IRCCS Ospedale Policlinico San Martino Genova-Italian Cardiovascular Network, Genoa, Italy; First Clinic of Internal Medicine, Department of Internal Medicine and Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy. 8. Kiniksa Pharmaceuticals Ltd., Lexington, MA. 9. Pauley Heart Center, Virginia Commonwealth University, Richmond, VA. Electronic address: antonio.abbate@vcuhealth.org.
Abstract
BACKGROUND: Acute pericarditis is the most common presentation of pericardial diseases. Although generally benign, complications such as constrictive pericarditis, cardiac tamponade, and recurrence can occur. RESEARCH QUESTION: What are the clinical factors associated with adverse outcomes in acute pericarditis? STUDY DESIGN AND METHODS: We used an informatics-based search engine to search for International Classification of Diseases codes related to pericardial disease between January 1, 2009 and November 14, 2018 and then extracted clinical information, including only patients meeting the European Society of Cardiology criteria for acute pericarditis. We then evaluated the predictive value of clinical characteristics for adverse outcomes (cardiac tamponade, constrictive pericarditis, failure of therapy, recurrences, or death). RESULTS: We identified 240 patients with a first episode of pericarditis (51 [34-62] years, 56% males and 50% white). Pericarditis was determined to be idiopathic in 126 (53%) cases and related to cardiac injury in 79 (33%). During a median follow-up time of 179 (20-450) days, 82 (34%) patients experienced at least one adverse outcome. Subacute presentation was an independent predictor of adverse outcomes. Patients with postcardiac injury pericarditis had a lower incidence in the composite of failure of treatment and recurrence (13% vs 26%; P = .022) compared with patients with idiopathic pericarditis. Troponin I measurements were obtained in 167 patients (70%). Elevated troponin I levels were associated with lower incidence of recurrences (4% vs 17%; P = .024) and of the composite outcome (13% vs 36%; P = .004). INTERPRETATION: Acute pericarditis is associated with at least one adverse outcome in 34% of patients. Subacute presentation and idiopathic etiology are associated with higher incidence of adverse outcomes, whereas elevated troponin I levels identify a group with reduced risk of recurrences.
BACKGROUND:Acute pericarditis is the most common presentation of pericardial diseases. Although generally benign, complications such as constrictive pericarditis, cardiac tamponade, and recurrence can occur. RESEARCH QUESTION: What are the clinical factors associated with adverse outcomes in acute pericarditis? STUDY DESIGN AND METHODS: We used an informatics-based search engine to search for International Classification of Diseases codes related to pericardial disease between January 1, 2009 and November 14, 2018 and then extracted clinical information, including only patients meeting the European Society of Cardiology criteria for acute pericarditis. We then evaluated the predictive value of clinical characteristics for adverse outcomes (cardiac tamponade, constrictive pericarditis, failure of therapy, recurrences, or death). RESULTS: We identified 240 patients with a first episode of pericarditis (51 [34-62] years, 56% males and 50% white). Pericarditis was determined to be idiopathic in 126 (53%) cases and related to cardiac injury in 79 (33%). During a median follow-up time of 179 (20-450) days, 82 (34%) patients experienced at least one adverse outcome. Subacute presentation was an independent predictor of adverse outcomes. Patients with postcardiac injury pericarditis had a lower incidence in the composite of failure of treatment and recurrence (13% vs 26%; P = .022) compared with patients with idiopathic pericarditis. Troponin I measurements were obtained in 167 patients (70%). Elevated troponin I levels were associated with lower incidence of recurrences (4% vs 17%; P = .024) and of the composite outcome (13% vs 36%; P = .004). INTERPRETATION:Acute pericarditis is associated with at least one adverse outcome in 34% of patients. Subacute presentation and idiopathic etiology are associated with higher incidence of adverse outcomes, whereas elevated troponin I levels identify a group with reduced risk of recurrences.
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