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Acute pulmonary embolism (APE) is a common and prognostically significant complication of COVID-19 infection. We investigated the clinical characteristics and chest CT findings of COVID-19 positive patients complicated with APE. A retrospective, record-based, case-series study was performed examining 483 patients admitted to King Saud Medical City during the pandemic, from April 2020 to June 2020. Of these, 92 patients who underwent chest CT scans were included in the final analysis. The incidence of APE, clinical presentations, radiological patterns, and patient outcomes were assessed and compared against those for patients without PE. The incidence of APE was 22% [95% confidence interval (95% CI): 19%-39%], detected by chest CT. Men constituted 85.0% of patients, with a mean age of 48.9 ± 16.7 years. For most patients with APE, risk factors for thromboembolism were established but did not differ significantly from those without PE. The mean D-dimer level of 9.1 (range 7.0-10.2) was significantly higher among patients diagnosed with APE (OR: 1.021; 95% CI: 1.012-1.028; P = 0.001) compared with that in patients without PE. Moreover, the mean levels of lactate dehydrogenase (LDH, 628.5; range: 494.0-928.3; OR: 1.002; 95% CI: 1.000-1.003; P = 0.02), C-reactive protein (CRP; 158.5; range: 105.3-204.5; OR: 1.025; 95% CI: 1.015-1.035; P = 0.001), and cardiac troponin (3.5; range; 2.6-3.8; OR: 1.016; 95% CI: 0.971-1.067; P = 0.01) were also significantly higher in patients with APE than those in patients with PE. The chest CT presentations of APE included massive, segmental, and sub-segmental APE. The need for Intensive Care Unit admission was higher among patients diagnosed with APE, who presented a fatality rate of 10%.. Our study pointed to the incidence and predictors of APE in COVID-19 patients. High levels of D-dimer, CRP, cardiac troponin, and LDH should alert the clinician to the possibility of APE in COVID-19 patients..

Introduction Type 2 myocardial infarction (T2MI) is an ischemic myocardial injury in the context of oxygen supply/demand mismatch in the absence of a primary coronary event. T2MI is often diagnosed in patients with a higher risk of morbidity and mortality. T2MI in young adults is poorly understood due to limited available data. Methods The Nationwide Readmission Database 2017-2018 was queried for admission with T2MI diagnosis in young adults (age ≤ 45 years). Index admissions with T2MI were identified. Other types of myocardial infarction and observations with missing data were excluded. December admissions were excluded to allow the 30-day follow-up. Cox proportional hazard multivariate regression model was used to determine predictors of readmissions. All P-values were two-sided, with 0.05 as the threshold for statistical significance. Results A total of 11,750 patients with a secondary diagnosis of T2MI were admitted between October 2017 and November 2018. The main primary etiologies of index admission were sepsis (14%) followed by hypertensive heart disease with heart failure (11%) and hypertensive emergency (7%), while main etiologies of readmission were hypertensive heart disease with heart failure (12%) followed by sepsis (9%) and acute kidney injury (3%). Valvular heart disease, chronic pulmonary disease, drug abuse, and depression were amongst the predictors of all-cause readmission. Conclusion We identified primary etiologies of admission and readmission, and predictors of readmissions in young adults presenting with T2MI. Further studies are needed to guide the management of T2MI in this age group.

Inflammation related to coronavirus disease (COVID)-19 can promote a pro-thrombotic process and subsequent thrombosis. We report a confirmed COVID-19 case in a 51-year-old patient who presented with chest pain and severe hypoxemia. Although the right heart chambers are unusual locations for a thrombus, an echocardiogram demonstrated a large mobile right ventricular thrombus protruding into the right ventricle outflow tract. A computed tomography angiogram and cardiac magnetic resonance image showed the extension of the thrombus into the pulmonary trunk. A continuous intravenous unfractionated heparin infusion resulted in a dramatic clinical and echocardiographic improvement.

Background Bechet’s disease (BD) is a relatively rare disease that causes recurrent oral and genital ulcers in addition to a variety of systemic manifestations. Concomitant superior-vena-cava (SVC) thrombosis and cardiac involvement with dilated cardiomyopathy (DCM) as initial presentations for BD is considered rare. Case presentation A 32-year-old-man presenting with intractable headaches and dyspnea. He was later diagnosed with SVC thrombosis and DCM. A diagnosis of BD was made after detailed history-taking. Conclusions Cardiovascular manifisations can be the initial presentation of BD. We aim to highlight the importance of early clinical recognition of BD as a cause of DCM and SVC thrombosis.

Background: Vitamin D plays several vital roles in the body and its impact on cardiovascular outcome is of great concern to cardiac specialists. This study investigated the influences of Vitamin D levels on coronary artery stenosis (CAS). Subjects and Method: A case study involving 248 patients (74%,184 males); mean age of 57±13 years in which serum levels of vitamin D were measured in Saudi patients admitted to King Saud Medical Hospital with acute coronary syndrome. Coronary arteries were classified angiographically as normal, non-obstructive or obstructive coronary stenosis when there is more than 70% luminal stenosis. The relationship between vitamin D levels and coronary stenosis was assessed using SPSS software. Results: The findings show that the mean (standard deviation; SD) levels of vitamin-D was (14.3 7.3 ng/ml. Most of the patients (205 [82.7%]) were found to have low serum vitamin-D level. Of 248 patients recruited for this study, 70 (28%) of them had unstable angina, 85 (34.5%) had ST-segment elevation myocardial infarction and 93 (37.5%) had non-ST-segment elevation myocardial infarction. Likewise, 58 patients (23.4%) had three vessel disease, 75 (30.2%) had two vessel disease, 76 (30.4%) had one vessel disease, 29 (12%) had a non-obstructive coronary artery stenosis and 10 (4%) had visually normal coronary arteries. Vitamin-D level was not a significant predictor of the degree of coronary luminal stenosis (p=0.15).However, a low vitamin-D level in individuals older than 55 years was a significant predictor of non-obstructive coronary artery stenosis [odds ratio (OD) =2.63, 95% confidence interval (CI):1.21-5.55, p=0.015]. Conclusions: It is concluded that low vitamin-D level does not correlate with the severity of coronary stenosis, but normal level in patients older than 55 years is associated with decreased severity of coronary stenosis.

Arterial stiffness is increasingly recognized as an important determinant of cardiovascular risk and may be directly involved in the process of atherosclerosis. As atherosclerosis leads to increased arterial resistance and decrease the flow propagation speed within the arterial lumen, a similar decrease in aortic flow propagation with increased downstream resistance is detected, so aortic flow propagation velocity AVP was evaluated in many studies as a new parameter of aortic stiffness. Aim: To measure arterial stiffness using the new parameter AVP and compare it to flow mediated dilatation FMD as a parameter of endothelial dysfunction in patients with metabolic syndrome MS. Methods: AVP (assessed by transthoracic echocardiography) and FMD (assessed by brachial artery reactivity test) were measured in 100 patients with MS (Group 1) and were compared to 14 normal subjects (Group 2). Results: Patients with MS had significantly lower values of AVP as compared to the normal subjects; 36 ± 5 cm/s vs 57 ± 5, p