Category: Pathophysiology

Deep Vein Thrombosis image 17

Pathophysiology of Deep Vein Thrombosis

Deep Vein Thrombosis (DVT) is a condition wherein a blood clot or thrombus is formed in a deep vein. It can also be called venous thrombosis, thrombophlebitis, phlebothrombosis.

The body is composed of superficial veins, deep veins and perforating veins. Perforating veins are the kind of veins that permit one – way flow of blood from the superficial to the deep vein system. On the other hand, superficial veins are made of thick – walled muscles and lie just beneath the skin. Deep veins however, are made of thin – walled muscle media. Both superficial and deep vein have valves that allows unidirectional flow of blood to and back the heart. The valve is situated along the vein’s base segment and extends into a sinus. With these structural arrangements, the valves readily open and close without coming in contact with the vein walls, it also permits rapid closure when the blood flows backward, preventing regurgitation.

Pathophysiology, Disease and Etiology 0

Pathophysiology, Disease and Etiology

Overview Before discussing about the specifics of a certain disease, its causes and its signs and symptoms, it is essential to establish core fundamentals on pathophysiology, disease and etiology. These...

Pathophysiology of Cell Injury 0

Pathophysiology of Cell Injury

CAUSES OF CELL INJURY Causes of cell injury are summarized into three components. Injury of the cell occurs as a result of: A DEFICIENCY of substances that are vital to...

Turner Syndrome 9

Turner Syndrome

Turner Syndrome

Turner syndrome or Ullrich-Turner syndrome is a chromosomal inability where one or all parts of a sex chromosome are absent. It is also called Gonadal dysgenesis. This abnormality is a genetic disorder that affects a girl’s development.

Thalassemias 3

Thalassemias

Thalassemias Definition Thalassemia is a group of inherited disorders which is associated with hemoglobin defects. The disorder results in excessive destruction of red blood cells leading to anemia. Types of...

Hypocalcemia in Newborns 2

Hypocalcemia in Newborns

Hypocalcemia in Newborns

Definition

Hypocalcemia is a disorder where there is a lowered blood calcium levels in newborns. It is defined as a total serum calcium concentration of less than 7 mg/dl. It is divided into early onset which occurs in the first 72 hours of life and late onset at about 5 to 10 days of age.

Incidence

Occurrence of this disorder is about 30% in infants with very low birth weight (<1500 g) and approximately 89% in premature infants. A very high prevalence rate is also noted in infants born with a diabetic mother.

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Hypoparathyroidism 0

Hypoparathyroidism

Hypoparathyroidism Hypoparathyroidism is a condition where a marked decrease, reduction or diminished secretion of parathyroid hormones is noted. This disorder occurs less frequently than hyperparathyroidism. A genetic factor is sometimes...

Increased Intracranial Pressure 0

Increased Intracranial Pressure

Increased Intracranial Pressure Intracranial pressure (ICP) is the pressure in the skull that results from the volume of three essential components: cerebrospinal fluid (CSF), intracranial blood volume and central nervous...

Pathophysiology of Dementia 0

Pathophysiology of Dementia

Primary Dementia Primary dementias are degenerative disorders that are progressive, irreversible, and not due to any other condition. Specific disorders are dementia of the Alzheimer’s type (DAT) and vascular dementia...