Effective in reducing incidence of PTB in women c prior PTB 1/3.
Using 17 hydroxy-progesterone caproate in women with short CL on TVU. possible decrease in PTB (Unpublished data ,Nicolaides & colleagues, 2006, International Society of Ultrasound in Obstetrics and Gynecology (ISUOG))
Insufficient data to assess efficacy of this intervention
Symptomatic women with PTL at high risk for PTB, but most of them deliver at term even without interventions.
Compared with women in whom cervical length and fetal fibronectin (FFN) results similar women with CL and FFN available for management decisions were triaged about half an hour earlier& less incidence of PTB