TRANSIENT TACHYPNOEA OF THE NEWBORN （瞬态TACHYPNOEA新生儿）.pdf

WOMEN AND NEWBORN HEALTH SERVICE King Edward Memorial Hospital NCCU CLINICAL GUIDELINES SECTION: 2 RESPIRATORY PROBLEMS AND MANAGEMENT Section 2: Respiratory problems and management Neonatology Clinical Care Unit Guidelines Transient Tachypnoea of the Newborn (TTN) King Edward Memorial/Princess Margaret Hospitals Date created: June 2006 Perth Western Australia Date revised: Nov 2009, Sept 2014 Authorisation review by Review date: Sept 2017 Neonatal Coordinating Group TRANSIENT TACHYPNOEA OF THE NEWBORN (TTN) Respiratory problems in the newborn comprise the majority of problems dealt with in the Neonatal Intensive Care Unit. The epidemiology of different causes of respiratory distress is determined by the aetiology and can be divided into 2 broad areas. Inadequate in utero maturation of the lung and mechanisms controlling respiratory function. Disease processes present before or after birth which compromise respiratory function. It is important to review the antenatal, delivery and postnatal history including key factors such as: - PROM - maternal pyrexia - gestation - liquor volume and content - history of feeds - presence and amount of mucus - known anomalies EPIDEMIOLOGY TTN is respiratory distress due to failure of reabsorption, or delayed clearance of fetal pulmonary alveolar fluid. It affects 1% to 2% of all newborns, primarily full-term infants. There are several perinatal risk factors, including elective