True statement about symmetrical lUGR with respect to asymmetrical lUGR :: (A) Worse prognosis, (B) Late onset, (C) Brain sparing effect, (D) More common
Answer is A. Intrauterine growth retardation refers to those fetuses that have failed to achieve their own genetic growth potential. Features of symmetrical IUGR: Uniformly small Ponderal index(Bih weight/Crown heel length) -Normal HC:AC and FL:AC Ratios-Normal Etiology: Genetic disease or Infection,Early onset Severe HTN Intrinsic to fetus. Early onset. All organs equally affected HC/AC and FL/AC normal Poor neonatal prognosis Features of Asymemetrical IUGR Head larger than Abdomen Ponderal Index-Low HC/AC and FL/AC ratios- Elevated Chronic placental insufficiency Extrinsic to fetus Late onset Usually uncomplicated having Good prognosis. REF: DC DUTTA'S TEXT BOOK OF OBS, 9th edition,page 432