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Cardiac Strangulation Due to Partial Pericardial Defect Presenting as Acute Myocardial Infarction.

ABSTRACT: A 79-year-old man with chest pain and dyspnea underwent emergency percutaneous coronary intervention for acute myocardial infarction. However, he died 17 days later due to refractory heart failure. An autopsy revealed cardiac strangulation caused by herniation of the apical heart through a pericardial defect due to partial absence of the pericardium. (Level of Difficulty: Advanced.).

SUBMITTER: Izumoto S

PROVIDER: S-EPMC8543160 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Cardiac Strangulation Due to Partial Pericardial Defect Presenting as Acute Myocardial Infarction.

Izumoto Shintaro S Oguri Nobuyuki N Koyama Shohei S Matsuura Yunosuke Y Komatsu Hiroyuki H Asada Yujiro Y Iwakiri Hironao H

JACC. Case reports 20211020 14

A 79-year-old man with chest pain and dyspnea underwent emergency percutaneous coronary intervention for acute myocardial infarction. However, he died 17 days later due to refractory heart failure. An autopsy revealed cardiac strangulation caused by herniation of the apical heart through a pericardial defect due to partial absence of the pericardium. (<b>Level of Difficulty: Advanced.</b>). ...[more]

PMID: 34729518

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Project description:BackgroundThe percentage of women <50 years of age hospitalized with myocardial infarction is increasing. We describe the clinical, morphological, and biological characteristics, as well as the clinical outcomes of this population.Methods and resultsThis prospective, observational study included consecutive women <50 years of age admitted for myocardial infarction at 30 centers in France (May 2017-June 2019). The primary outcome was the composite of net adverse clinical events: all-cause death, cardiovascular death, recurrent myocardial infarction, stent thrombosis, any stroke, or major bleeding occurring during hospitalization with a 12-month follow up. Three hundred fourteen women were included. The mean age was 43.0 (±5.7) years, 60.8% presented with ST-segment-elevation myocardial infarction, 75.5% were current smokers, 31.2% had a history of complicated pregnancy, and 55.1% reported recent emotional stress. Most (91.6%) women presented with typical chest pain. Of patients on an estrogen-containing contraceptive, 86.0% had at least 1 contraindication. Of patients with ST-segment-elevation myocardial infarction, 17.8% had myocardial infarction with nonobstructive coronary arteries and 14.6% had spontaneous coronary artery dissection, whereas 29.3% presented with multivessel vessel disease. During hospitalization, 11 net adverse clinical events occurred in 9 (2.8%) women, but no deaths or stent thromboses occurred. By 12 months, 14 net adverse clinical events occurred in 10 (3.2%) women; 2 (0.6%) died (from progressive cancer) and 25 (7.9%) had an ischemia-driven repeat percutaneous coronary intervention.ConclusionsMost young women with myocardial infarction reported typical chest pain and had modifiable cardiovascular risk factors. History of adverse pregnancy outcomes and prescription of combined oral contraceptive despite a contraindication were prevalent, emphasizing the need for comprehensive cardiological and gynecological evaluation and follow-up.RegistrationURL: https://www.clinicaltrials.gov; Unique identifier: NCT03073447.

Project description:Background and Purpose- American Heart Association guidelines recommend obtaining baseline troponin in all patients with acute ischemic stroke. Yet, there is a paucity of data on the prevalence of baseline troponin elevation and specifically its diagnostic yield for acute myocardial infarction (AMI) in patients presenting within the time window for thrombolysis. Methods- We retrospectively analyzed 1072 consecutive patients admitted for acute ischemic stroke or transient ischemic attack, who presented within 4.5 hours of last known well (LKW). Patients who had baseline cardiac troponin I (bcTnI) obtained within 72 hours from LKW (n=525) were included in the study. Multivariable logistic regression was conducted to determine factors independently related to an elevated bcTnI (>0.04 ng/mL). We calculated the area under receiver operator curves, sensitivity, and specificity, to determine the diagnostic accuracy of (i) the bcTnI for AMI stratified by the time to assessment and (ii) the best time cutoff for obtaining bcTnI. Results- Among included subjects, the median time from LKW to the bcTnI was 3.8 hours and 113 (21.5%) subjects had an elevated bcTnI. Assessment of bcTnI within 4.5 hours from LKW was significantly more often associated with normal values as compared to assessment between 4.5 and 72 hours (61.7% versus 38.3%; P=0.001). Fifteen (2.9%) patients were diagnosed with AMI. After adjustment for pertinent confounders, time to bcTnI assessment was independently associated with AMI (odds ratio, 1.04 [95% CI, 1.02-1.07] P=0.001). When stratified by time, bcTnI assessed within 4.5 hours had a sensitivity of 25% and specificity of 83.7% for AMI, whereas bcTnI assessment between 4.5 and 72 hours was associated with a sensitivity of 90.9% and specificity of 74.8%. Conclusions- Assessment of bcTnI after 4.5 hours from LKW was associated with greater diagnostic accuracy than testing within 4.5 hours. This information may inform routine clinical practice.

Project description:Background The study sought to assess the prognostic impact of acute myocardial infarction ( AMI ) with and without ST -segment-elevation myocardial infarction ( STEMI and NSTEMI ) in patients with ventricular tachyarrhythmias and sudden cardiac arrest ( SCA ) on admission. Methods and Results A large retrospective registry was used including all consecutive patients presenting with ventricular tachycardia ( VT ), fibrillation ( VF ), and sudden cardiac arrest ( SCA ) on admission from 2002 to 2016. AMI versus non- AMI and STEMI versus NSTEMI were compared applying multivariable Cox regression models and propensity-score matching for evaluation of the primary prognostic end point defined as long-term all-cause mortality at 2.5 years. Secondary end points were 30 days all-cause mortality, cardiac death at 24 hours, in hospital death, and recurrent percutaneous coronary intervention (re- PCI ) at 2.5 years. In 2813 unmatched high-risk patients with ventricular tachyarrhythmias and SCA , AMI was present in 29% (10% STEMI , 19% NSTEMI ) with higher rates of VF (54% versus 31%) and SCA (35% versus 26%), whereas VT rates were higher in non- AMI (56% versus 30%) ( P < 0.05). AMI -related VT ≥48 hours was associated with higher mortality (log rank P = 0.001). Multivariable Cox regression models revealed non- AMI (hazard ratio = 1.458; P = 0.001) and NSTEMI (hazard ratio = 1.460; P = 0.036) associated with increasing long-term all-cause mortality at 2.5 years, which was also proven after propensity-score matching (non- AMI versus AMI : 55% versus 43%, log rank P = 0.001, hazard ratio = 1.349; NSTEMI versus STEMI : 45% versus 34%, log rank P = 0.047, hazard ratio = 1.372). Secondary end points including 30 days and in-hospital mortality, as well as re- PCI were higher in non- AMI patients. Conclusions In high-risk patients presenting with ventricular tachyarrhythmias and SCA , non- AMI revealed higher mortality than AMI , respectively NSTEMI than STEMI , alongside AMI -related VT ≥48 hours.

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Cardiac Strangulation Due to Partial Pericardial Defect Presenting as Acute Myocardial Infarction.

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Cardiac Strangulation Due to Partial Pericardial Defect Presenting as Acute Myocardial Infarction.

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