TTN
Also written as: TTN — Transient Tachypnea of the Newborn
A temporary breathing condition in newborns caused by delayed clearance of fetal lung fluid, typically occurring in infants born by cesarean section or slightly premature.
Full Definition
Transient Tachypnea of the Newborn (TTN), also called wet lung syndrome, is a respiratory condition affecting newborns in the first few hours of life. It occurs when fetal lung fluid is not adequately cleared from the lungs during or after birth, leading to temporary respiratory distress characterized by rapid breathing, mild cyanosis, and grunting. TTN is more common in infants born by cesarean section (especially without labor), late preterm infants (34-37 weeks), and males. Unlike RDS, TTN is typically mild and self-limiting, usually resolving within 24-72 hours without specific treatment other than supportive care and monitoring.
Usage
Usage note: Always spell out on first use as TTN can be confused with other medical abbreviations.
In Context
- "The term infant born by elective cesarean section developed TTN and required monitoring in the special care nursery." — Newborn assessment
- "TTN typically resolves spontaneously within the first 48 hours of life without specific intervention." — Patient education material