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Cardiovascular Manifestations of Covid-19: A Review

Article Information

Qianlan Xi1, Muhammad Adnan Haider2, Muhammad Hanif3*, Mukarram Jamat Ali4, Muhammad Umer Ahmed5, Muhammad Aslam Khan2, Sundas3, Amin H Karim6

1Department of Internal Medicine, West China Hospital, Sichuan University, Chengdu, China

2Department of Internal Medicine, Allama Iqbal Medical College, Lahore, Pakistan

3Department of Internal Medicine, Khyber Medical College Peshawar, Peshawar, Pakistan

4Department of Internal Medicine, King Edward Medical University Lahore, Pakistan

5Department of Internal Medicine, Ziauddin University and hospital, Ziauddin Medical College, Karachi, Pakistan

6Associate Professor of Cardiology, Baylor College of Medicine, Texas, United States

*Corresponding author: Muhammad Hanif, Department of Internal Medicine, Khyber Medical College Peshawar, Hayatabad Medical Complex, Peshawar, Pakistan

Received: 10 May 2020; Accepted: 22 May 2020; Published: 4 June 2020

Citation: Qianlan Xi, Muhammad Adnan Haider, Muhammad Hanif, Mukarram Jamat Ali, Muhammad Umer Ahmed, Muhammad Aslam Khan, Sundas, Amin H Karim. Cardiovascular Manifestations of Covid-19: A Review. Archives of Internal Medicine Research 3 (2020): 131-135.

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The coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has become a global pandemic. After reviewing recent publications on clinical manifestations of COVID-19, we have found that in addition to respiratory, gastrointestinal and neurological symptoms, cardiovascular manifestations including myocardial injury, heart failure, arrhythmias and venous thromboembolism are also common in patients with COVID-19, especially in those with severe disease. It is very important to identify cardiovascular manifestations at early stage of the disease and appropriate interventions should be considered for these patients for a better outcome.


COVID-19, SARS-Cov-2, Myocardial Infarction, Arrhythmias, Heart Failure, Venous Thromboembolism

COVID-19 articles, SARS-Cov-2 articles, Myocardial Infarction articles, Arrhythmias articles, Heart Failure articles, Venous Thromboembolism articles

Article Details

1. Introduction

The coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a pandemic throughout the world after its origin from Wuhan, China. Pneumonia characterized primarily by fever, cough, dyspnea, and bilateral infiltrates on chest imaging appears to be the most frequent manifestation of infection [1-4]. Additionally, gastrointestinal symptoms (eg, nausea and diarrhea), anosmia and dysgeusia have also been reported [5, 6]. Moreover, many patients with COVID-19 have been reported to present with symptoms of cardiovascular disease. There is a need of the hour to diagnose these manifestations at earliest to limit long term sequelae. We present the spectrum of common cardiovascular manifestations of patients with COVID-19.

2. Myocardial Injury

Numerous studies have reported acute myocardial injury including both ischemic myocardial injury and non-ischemic myocardial injury as an important manifestation of COVID- 19, even without symptoms and signs of interstitial pneumonia [7-12]. The proposed mechanisms of myocardial injury are direct damage to the cardiomyocytes, systemic inflammation, myocardial interstitial fibrosis, interferon mediated immune response, exaggerated cytokine response by Type 1 and 2 helper T cells, in addition to coronary plaque destabilization and hypoxia [13]. The frequency of myocardial injury (reflected by elevation in cardiac troponin levels) varies from 7 to 28 percent among hospitalized patients with COVID-19 [7-10]. It has also been reported that in hospitalized patients with more severe disease and worse outcomes, the frequency and magnitude of troponin elevations are much higher. Shi S, et al. conducted a cohort study including 416 hospitalized patients with COVID-19 in Wuhan, China and found that a total of 82 patients (19.7%) had cardiac injury. Patients with cardiac injury had higher mortality than those without cardiac injury (51.2% vs 4.5%) [10]. In a Cox regression model, patients with versus those without cardiac injury were at a higher risk of death, both during the time from symptom onset (hazard ratio, 4.26 [95% CI, 1.92-9.49]) and from admission to end point (hazard ratio, 3.41 [95% CI, 1.62-7.16]). In another retrospective multicenter cohort study Zhou F, et al. reported that myocardial injury was identified on admission in 46 percent of non-survivors versus 1 percent of survivors [11]. A small series of 21 critically ill patients with COVID-19 in Washington State, cardiomyopathy developed in 7 patients (33%) [14]. It is also noticed that patients with elevated troponin levels were older than patients with normal troponin level (71.4 ± 9.4 vs 53.5 ± 13.2 years) [15].

3. Heart Failure

Heart failure in patients with pre-existing known or undiagnosed heart diseases (for example, coronary artery disease or hypertensive heart disease) or incident acute myocardial injury (for example, stress, cytokine storm, systemic hyperinflammatory response, etc.) may be precipitated by acute COVID-19 [16]. Zhou F, et al. found that heart failure was identified in 52% non-survivors and in 12% survivors [11]. Similarly, in a retrospective study of 799 patients hospitalized with COVID-19 in Wuhan, China, Chen T, et al. demonstrated that 49% non-survivors had heart failure, while only 3% survivors had heart failure [17]. In another study conducted by Shi S, et al. N-terminal proBNP (NT-proBNP) levels were significantly higher in patients with heart injury than in patients without heart injury [10]. Moreover, patients with a known history of heart failure may also suffer an acute decompensation due to the development of COVID-19 disease. [18]

4. Arrhythmias

Arrhythmias as manifestations in patients with COVID-19 have been reported in several published articles. Arrhythmias could be the first presentation of COVID-19 and new-onset and/or progressive arrhythmias could indicate cardiac involvement. Guo T, et al. found that patients with elevated TnT levels had more frequent malignant arrhythmias. [15] Liu K, et al. conducted a study, including 137 patients in Wuhan, China showed that 7.3% of the patients had experienced palpitations as one of their presenting symptoms of COVID-19 [19]. Arrhythmias were found to be more common in intensive unit (ICU) COVID-19 patients than in non-ICU COVID-19 patients according to Wang D, et al. [20]. However, in these two reports, the cause of palpitations or type of arrhythmia was not specified. While Guo T, et al. found that there is a higher incidence of malignant arrhythmia (hemodynamically unstable ventricular tachycardia or ventricular fibrillation) in patients with elevated troponin T than patients without (11.5% vs. 5.2%) [15].

5. Venous Thromboembolism

There were 22.7% cases of deep venous thrombosis (DVT) in patients with COVID-19 reported by Shi Z, et al. [21] from China. This might be due to higher level of D-dimer, fibrin degradation products (FDP) and fibrinogen in patients with COVID-19 as compared to healthy controls [22] and similarly higher levels of these coagulation markers were seen in patients with severe COVID-19 than those with mild COVID-19 based on a meta-analysis [23]. Zhou F, et al. found that d-dimer greater than 1μg/mL was associated with increased odds of in-hospital death [11]. Case series of ICU patients have reported high rates (20 to 43 %) of venous thromboembolism (VTE) [mostly pulmonary embolism (PE)] despite prophylactic anticoagulation. While the cumulative incidence of VTE calculated by Klok FA, et al. was 27% [24] whereas it was 39% in another study including 74 ICU patients with COVID-19 by Middeldrop S, et al. [25]. Thus, VTE (including pulmonary embolism) should be considered in the setting of critically ill patients with COVID-19.

6. Conclusion

Cardiovascular manifestations, including myocardial injury, heart failure, arrhythmias and venous thromboembolism are of great concern in patients with COVID-19. These tend to be more common in patients with severe COVID-19 and are associated with increased mortality. Physician should be aware of these cardiovascular manifestations even in the absent of common respiratory presentations of COVID-19 to identify them earlier to limit the worst outcomes associated, including death. We recommend having a low threshold for the identification of such manifestations especially in patients with preexisting co-morbidities for example hypertension, diabetes and cardiac abnormalities.

Conflict of Interest

Authors declare no conflict of interest.


No funding, from any sources have been received in writing of this manuscript.


The common cardiovascular manifestations of COVID-19 are discussed below.


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