The development of late FHR deceleration and analysis of controversy FHR with hypoxia index

Transient FHR reduction (deceleration) was classified to U-shape variable one and V-shape periodic one, which is further divided into early deceleration (ED) and late deceleration (LD), of which lag time to uterine contraction is 20 or rmore seconds (Figure 1). LD is placental insufficiency and its outcome was ominous by Hon [1]. CaldeyroBarcia Type I dip was ED and Type 2 was LD [2]. Controversy LD was neonatal favorable outcome after detection of fetal LD, despite it was told that LD associated ominous outcome [1].