Laparoscopic Repair Of Cesarean Scar Niche: Randomized Controlled Trial.

Recently, The percentage of Cesarean section (CS) deliveries has dramatically increased in most countries. The presence of a niche at the site of a CS scar has been observed. A niche is mainly a sonographic finding defined as a triangular anechoic area at site of incision. ( Mascarello et al, 2017) Alternative terms for a niche are Cesarean scar defect (Wang et al, 2009), deficient Cesarean scar (Ofili-Yebovi et al, 2008), diverticulum (Surapaneni et al, 2008), pouch (Fabres el al, 2003) and isthmocele. (bogres el al, 2010) As not all women with previous CS develop a niche, it is a matter of interest to identify the risk factors that may predict their development. (Sholapurkar , 2018) Possible causes of this condition may be surgery or patient related. Surgery related factors as low cervical incision, incomplete closure of the uterus (decidual sparing) and inadequate hemostasis. Patient related factors may be attributed to infection. ( Vervoort et al, 2015) Cesarean scar niche may be asymptomatic or may cause a number of obstetrical and gynecological problems (cesarean scar syndrome) . ( Vervoort et al,2015b) Obstetrical complications of the niche are cesarean scar ectopic pregnancy, placenta previa and morbidly adherent placenta, cesarean scar dehiscence following incomplete abortion secondary to uterotonic drugs, Scar dehiscence and tender scar even scar rupture (Tanimura el al, 2015) Gynecological symptoms of the niche are postmenstrual spotting, Intermenstrual bleeding, Dysmenorrheal, Dysparunia and secondary infertility. (Tanimura el al, 2015) Various methods to detect and measure a niche have been described. The majority of papers have evaluated the niche with the use of transvaginal sonography (TVS) (Vaate et al, 2011), and contrast-enhanced sonohysterography (SHG) (Bij de Vaate et al, 2011), but a minority have used hysteroscopy (El-Mazny et al, 2011) or hysterosalpingography. (Surapaneni and Silberzweig, 2008 ) At present there is no consensus regarding the gold standard for the detection and measurement of a niche. (Vaate et al, 2014) Symptomatic cesarean scar niche (cesarean scar syndrome) can be managed conservatively using combined oral contraceptive pills especially in women not seeking fertility, or it can be treated using minimal invasive surgery as hysteroscopic resection (vervoot et al,2017) , laparoscopic repair (ma et al,2017) or vaginal repair (Yao, 2014) In this study we will evaluate laparoscopic management of cesarean scar niche