Carbetocin Versus Misoprostol in Cases With Placenta Previa After C.S. (PPH)

Carbetocin Versus Misoprostol for Prevention of Postpartum Hemorrhage in Cases With Placenta Previa After C.S.

We will compare efficacy and safety of Carbetocin with Misoprostol in prevention of postpartum hemorrhage in Placenta previa women after C.S.

Postpartum hemorrhage was traditionally defined as blood loss in excess of 500 mL from a vaginal delivery or 1000 mL at cesarean section. It can result from uterine atony, retained placental tissue including that from abnormal placentation, maternal genital tract trauma and coagulopathies. (Almog et al, 2011) Uterotonic agents (e.g. ergometrine, misoprostol) should be easily accessible. Many units of an oxytocin infusion and/or rectal misoprostol during and after cesarean deliveries used to reduce the incidence of atony. -Misoprostol has been widely recommended for the prevention of post-partum hemorrhage when other methods are not available. The most common regimen reported for the treatment of post-partum hemorrhage is rectally. (Oladapo et al., 2012) Misoprostol is a prostaglandin E1 analogue. It has been investigated in the prevention of postpartum hemorrhage, using either the oral or rectal route of administration. (Hofmeyr et al, 2009) Carbetocin is a long-acting oxytocin studied by Dansereau et al.; 1999.They found that the carbetocin group of patients had a decreased incidence of PPH and of the need for therapeutic oxytocics. The recommended dose of carbetocin is 100 mg given either IM or slowly (over 1 minute). Placenta previa, placenta accreta, and vasa previa are important causes of bleeding in the second half of pregnancy and in labor. Risk factors for placenta previa include prior cesarean delivery, pregnancy termination, intrauterine surgery, smoking, multifetal gestation, increasing parity, and maternal age. Thus, placenta previa is a risk factor for post partum hemorrhage.2006 Apr;107(4):927-41. Placenta previa, placenta accreta, and vasa previa. Oyelese Y1, Smulian JC.Obstet Gynecol

Pabal (carbetocin which is a long acting oxytocin ) given as 100 mcg slow i.v. injection over 1 minute ( Draxis/Multiph). It will be given to the patients included in the study after delivery of the fetal head.

Misoprostol ( Misotac, Sigma, Egypt) is a stable, synthetic form of prostaglandin E1 analogue. Patients wil be given 600 microgram of misotac immediately postoperative.

Pabal 100 mcg iv infusion over 1 minute given after delivery of fetal head In the first group of patients, carbitocin 100 mcg will be given iv infusion over one minute

600 micro gram of misoprostol which is a prostaglandin E1 will be given per rectum for patients immediately postoperative.

The uterine tone and size will be assessed by using a hand resting on the fundus and palpating the anterior wall of the uterus one hour after the operation. The presence of a boggy uterus with either heavy vaginal bleeding or increasing uterine size can suspect diagnosis of uterine atony.

Blood loss will be estimated postoperatively by giving each woman of each group standard 2 dressings (standard weight of dressing is 25 gm) for one hour postoperative and recording weight of blood soaked dressings and volume of lost blood.

Changes in hemoglobin concentrations before and 24 hours postoperative. Using a 10% fall in hematocrit value to define post-partum hemorrhage.

Inclusion Criteria: Women with a singleton pregnancy undergoing cesarean section after 37 weeks of gestation. Exclusion Criteria: • Women undergoing caesarean section with general anesthesia will be excluded, because carbetocin is licensed for use with regional anaesthesia only. women undergoing caesarean section at less than 37 weeks of gestation. Hypertension with pregnancy. Cardiac and coronary diseases with pregnancy

Advance misoprostol distribution for preventing and treating postpartum haemorrhage. Cochrane Database Syst Rev. 2012 Feb 15; 2:CD009336. Maternal and Fetal Health Research Unit, Department of Obstetrics and Gynaecology, Obafemi Awolowo College of Health

Maternal consequences of caesarean section. A retrospective study of intra-operative and postoperative maternal complications of caesarean section during a 10- year period. Eur J Obstet Gynecol Reprod Biol. 2009;74(1):1-6.

Dansereau J, Joshi AK, Helewa ME, Doran TA, Lange IR, Luther ER, et al. Double-blind comparison of carbetocin versus oxytocin in prevention of uterine atony after cesarean section. Am J Obstet Gynecol 1999; 180:670-6.

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2006 Apr;107(4):927-41. Placenta previa, placenta accreta, and vasa previa. Oyelese Y1, Smulian JC.Obstet Gynecol