Methods of Placental Delivery and the Amount of Blood Loss During Cesarean Section

Benha University

Status: Completed

Conditions: Complications; Cesarean Section

Treatments: Procedure: cord traction; Procedure: manual removal

Study type: Interventional

Funder types: Other

Identifiers

NCT02405663

afhsr-1-3-2015

Details and patient eligibility

About

To compare between the effect of controlled cord traction and manual removal of the placenta on blood loss among women undergoing caesarean sections

Full description

Cesarean section (CS) is one of the most commonly performed major abdominal operations in women worldwide and its rate is increasing dramatically every year.

Some of the reported short-term morbidities include hemorrhage, postoperative fever and endometritis. The method of delivering the placenta is one procedure that may contribute to an increase or decrease in the morbidity of CS.

On an average 0.5-1 liter of blood is lost during CS, many variable techniques have been tried to reduce this blood loss. Such techniques include finger splitting versus scissor cutting of incision, in situ stitching verses exteriorization and stitching of uterus , and finally spontaneous or manual removal of the placenta.

Two common methods used to deliver the placenta at CS are cord traction and manual removal.

Manual removal of the placenta which the obstetrician introduce his hand into the uterine cavity to cleave the placenta from the decidua basalis as soon as possible after the delivery of the infant and controlled cord traction in which the obstetrician do external uterine massage and gentle traction on the exposed umbilical cord to facilitate placental delivery.

Opinions differ about the best for placental delivery technique at CS. Some trials showed a reduced risk of blood loss with controlled cord traction (3) and others showed that manual removal of placenta at CS do not increase perioperative blood loss.

Authors concluded that manual delivery of the placenta was significantly associated with greater operative blood loss and greater decrease in postoperative hemoglobin levels and postpartum maternal infectious morbidity but with shorter operative time compared with spontaneous placental separation .

In addition, it is known that the blood loss at CS delivery is difficult to estimate, and numerous different methods including serial change in hematocrit (Hct), hemoglobin (Hb) level, visual estimation and the gravimetric method are described.

A low, but significant, correlation was found between visually estimated blood loss and perioperative hemoglobin change in women delivering by CS. However, hemoglobin , hematocrit levels and visual estimation are the most commonly used technique for estimating blood loss at delivery.

Enrollment: 288 patients

Sex: Female

Ages: 20 to 35 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• All informed and consented women undergoing elective or emergency CS will be legible for enrollment into the study

Exclusion criteria

• Multiple gestation.
• Pregnancy below 34 weeks.
• Severe maternal anemia.
• Severe pre-eclampsia
• Prolonged labor.
• Prolonged rupture of the membranes with fever.
• Placental abruption.
• Placenta previa.
• Placenta accreta.
• Clotting disorders.
• Current or previous history of a significant disease including heart disease, liver, renal disorders.

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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288 participants in 2 patient groups

manual removal group

Experimental group

Description:

Group will be assigned for manual removal of the placenta as the surgeon will introduce his hand into the uterine cavity to cleave the placenta from the decidua basalis as soon as possible after the delivery of the baby by caesarean section

Treatment:

Procedure: manual removal

cord traction group

Experimental group

Description:

Group will be assigned for controlled cord traction as the surgeon do external uterine massage and gentle traction on the exposed umbilical cord to facilitate placental delivery after the delivery of the baby by caesarean section

Treatment:

Procedure: cord traction