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Tet spells are defined as cyanotic spells occurring due to the obstruction right ventricular outflow. [54] Tet spells can be triggered by various factors such as crying, progressive tachypnea , and deep breathing, with symptoms including but not limited to blue skin, nails and lips, profound crying and difficulty breathing.
Babies with TOF will often experience symptoms and cyanosis in spells, which is referred to as “tet spells”. So say the baby’s cruising around, and therefore increasing oxygen demand, their heart will try to pump more blood, leading to a sudden decrease in oxygen saturation, which causes them to be cyanotic.
There are four types of breath-holding spells. Simple breath-holding spell This is the most common type and the cause is the holding of breath. The usual precipitating event is frustration or injury. There is no major alteration of circulation or oxygenation and the recovery is spontaneous. [2] Cyanotic breath-holding spells
A cyanotic heart defect is any congenital heart defect (CHD) that occurs due to deoxygenated blood bypassing the lungs and entering the systemic circulation, or a mixture of oxygenated and unoxygenated blood entering the systemic circulation.
In tetralogy of Fallot, episodes in which infants become cyanotic are called tet spells, typically occurring during feeding or crying. [18] When older, children may squat to feel relief since this increases the systemic vascular resistance causing more blood to go towards the lungs, resulting in increased oxygenation. [18]
Teth, also written as Ṭēth or Tet, is the ninth letter of the Semitic abjads, including Phoenician ṭēt 𐤈, Hebrew, Aramaic ṭēṯ 𐡈, and Syriac ṭēṯ ܛ, and Arabic ṭāʾ ط . The Phoenician letter also gave rise to the Greek theta ( Θ ), originally an aspirated voiceless dental stop but now used for the voiceless dental ...
Toddlers and older children with the congenital heart disease tetralogy of Fallot will often instinctively squat during a "tet spell" (an episode involving a sudden development of blue skin, caused by a drop of oxygen in the blood), allowing more blood to flow to the lungs. [33]
Tet or teth, tēth, or Ṭāʾ, a Semitic abjad character; tet, the ISO 639-2 code for Tetum; Equal temperament, abbreviated as 12-TET, 19-TET, and so on; Teacher Eligibility Test, a teachers' entrance test; Tet methylcytosine dioxygenase 1, or TET1, an enzyme; Tetrachloride; Tetrahedron; Tetralogy of Fallot