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doctor with female patient

Anaemia of chronic disease

Anaemia is a condition in which the level of haemoglobin in the blood is low. Haemoglobin is responsible for the transport of oxygen around the blood within red blood cells. In anaemia of chronic disease, the anaemia is caused by a long-term inflammation that is present in many...
A red heart shape and a medical stethoscope.

Atrial septal defect (ASD; ostium secundum defect)

Atrial septal defect (ASD) is a congenital heart defect. In foetal circulation there is normally an opening between the two atria (the upper chambers of the heart) to allow blood to bypass the lungs. This opening usually closes about the time the baby is born. If the opening is...
human heart illustration

Ventricular septal defect (VSD)

Ventricular Septal Defect (VSD) is a disease of the heart, namely the septum (or division) between the two ventricles (or main chambers of the heart).
Doctor drawing a heart

Patent ductus arteriosus (PDA)

Patent ductus arteriosus (PDA) is a condition where a temporary blood vessel near an unborn baby's heart, the ductus arteriosus, fails to close after birth. (The blood vessel normally closes after birth because it is no longer needed). The word "patent" means open.
human heart illustration

Coarctation of the aorta

Coarctation of the Aorta is mainly found in the aorta, which is the main artery from the heart. The most common site is the arch of the aorta (just after it leaves the heart).
broken heart illustration

Tetralogy of Fallot

Tetralogy of Fallot is a type of heart defect present at birth (congenital) consisting of four different abnormalities. It usually results in insufficiently oxygenated blood being pumped to the body causing cyanosis (bluish discoloration of the skin).
sick girl


Tonsillitis involves infection of the pharyngeal tonsils (symmetrical areas of lymphoid tissue located at the back of the throat).
Man blowing his nose in canola field

Perennial allergic rhinitis

Information on the symptoms, treatment and diagnosis of Allergic rhinitis by professional health specialists.
male doctor in hospital

Croup (viral laryngotracheobronchitis)

What is Croup (Viral laryngotracheobronchitis) Statistics on Croup (Viral laryngotracheobronchitis) Risk Factors for Croup (Viral laryngotracheobronchitis) Progression of Croup (Viral […]
Doctor and senior woman

Extrinsic allergic alveolitis (EAA) or hypersensitivity pneumonitis (HP)

Hypersensitivity pneumonitis or extrinsic allergic alveolitis is a widespread disease of the lungs, involving inflammation in both the small airways of the lung and the alveoli (air sacs). It is not dissimilar to asthma, but the latter involves the bronchi and bronchioles. It is...