2.The main causes of dystocia of vertex presentation were occiput malpresentation, macrosomic infant, uterine atony, abnormal pelvic and genital tract.
3.Results Fluorescein cyclogram atony occured in most part of early optic disc in fundus fluorescein angiography and hyperfluroescence occu red with different degree of field defect in late optic disc.
5.Uterine atony can be treated by fundal massage, massaging the fundus – the upper section of the uterus which is typically near the umbilicus right after birth.
6.Finally, some commonly used obstetric medications such as anesthetics (especially halothane), magnesium sulfate, nifedipine, and terbutaline can all interfere with uterine contractions and increase the risk of uterine atony.
7.Alright, as a quick recap, postpartum hemorrhage is the most common cause of maternal morbidity and mortality around the world, and the causes are the 4 T's: Tone (atony), Trauma, Tissue, and Thrombus (coagulopathy).
8.Tone refers to a lack of uterine tone or uterine atony – basically a soft, spongy, boggy uterus, and this is the main cause of postpartum hemorrhage, generally resulting in a slow and steady loss of blood.