Pulmonary embolism (PE) is a blockage of blood flow in the pulmonary artery bed that can result in a life-threatening and potentially reversible right ventricular failure [1]. PE remains one of the leading causes of poor prognosis and death, particularly when a shock or right ventricular failure occurs [2]. According to studies, PE is generally manifested in a nonspecific manner

The ventricular septal defect (VSD) is the most frequent congenital heart disease in humans. It is defined as an opening in the septum separating the left and the right ventricle. This gap results in a mixture of oxygenated and deoxygenated blood and in an enhanced blood flow towards the lung and the left ventricle, a condition that leads to severe diseases such as left ventricular hypertrophy as well as pulmonary edema and dilatation.

Diastolic heart failure (DHF) is also be regarded as heart failure with preserved ejection fraction (HFpEF), is estimated to occur in 40 to 50% of patients with HF. More than 70% of HF patients over the age of 65 had HFpEF, and the incidence and prevalence of HFpEF has been increased by 10% every 10 years in comparison to HF with reduced ejection fraction (HFrEF), and this gap is expected to widen in the coming years.

The annual incidence of aneurysmal subarachnoid hemorrhage (SAH) in the United States is 6-16 cases per 100,000 population, with approximately 30,000 cases occurring each year.

Perinatal brain injury is an important clinical and socioeconomic entity. It is a syndrome of impaired brain function in the early days of life, and it is a consequence of inadequate brain oxygenation before, during or shortly after birth, with high mortality rates and early and late morbidity rates.