Atrioventricular Canal

Atrioventricular Canal

  The proper development of the atrioventricular canal into its prospective components (The heart septum and associated valves) to create a clear division between the four compartments of the heart and ensure proper blood movement through the heart, are essential for proper heart function. When this process does not happen correctly, a child will develop […]

Atrial Septal Defect

Atrial Septal Defect

  Atrial septal defect (ASD) is a heart defect in which blood flows between the atria (upper chambers) of the heart. Some flow is a normal condition both pre-birth and immediately post-birth via the foramen ovale, however when this does not naturally close after birth it is referred to as a patent (open) foramen ovale […]

Atrial Fibrillation

Atrial Fibrillation

  Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating of the atria. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Often episodes have no symptoms. Occasionally there may be heart palpitations, fainting, lightheadedness, shortness of breath, or chest […]

Atopic Dermatitis

Atopic Dermatitis

  Atopic dermatitis (AD), also known as atopic eczema, is a type of inflammation of the skin (dermatitis). It results in itchy, red, swollen, and cracked skin. Clear fluid may come from the affected areas, which often thicken over time. The condition typically starts in childhood with changing severity over the years. In children under […]

Athlete’s Foot

Athlete’s Foot

  Athlete’s foot, known medically as tinea pedis, is a common skin infection of the feet caused by fungus. Signs and symptoms often include itching, scaling, and redness. In rare cases the skin may blister. Athlete’s foot fungus may infect any part of the foot, but most often grows between the toes. The next most […]

Atelophobia

Atelophobia

The fear of imperfection or not being good enough. Atelophobia (from Greek atelès, “imperfect” or “incomplete”) is the fear of not good enough or imperfection. Atelophobes would often feel that everything they do is wrong. As a result, they would never do anything while not interacting with anyone, let alone not playing games nor doing […]

Atelectasis

Atelectasis

  Atelectasis is the collapse or closure of a lung resulting in reduced or absent gas exchange. It may affect part or all of a lung. It is usually unilateral. It is a condition where the alveoli are deflated down to little or no volume, as distinct from pulmonary consolidation, in which they are filled […]

Ataxia

Ataxia

  Ataxia is a neurological sign consisting of lack of voluntary coordination of muscle movements that includes gait abnormality. Ataxia is a non-specific clinical manifestation implying dysfunction of the parts of the nervous system that coordinate movement, such as the cerebellum. Ataxia can be limited to one side of the body, which is referred to […]

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