Trial Outcomes & Findings for Uterine Cooling During Cesarean Delivery to Reduce Blood Loss and Incidence of Postpartum Hemorrhage (NCT NCT02229513)

NCT ID: NCT02229513

Last Updated: 2018-01-19

Results Overview

At the conclusion of the surgery, blood loss will be calculated by measuring the content of blood in the suction canister, and by weighing the surgical sponges. The amount of blood loss in the PACU will be measured by weighing pads.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

200 participants

Primary outcome timeframe

During surgery and in the PACU (approximately 3 total hours)

Results posted on

2018-01-19

Participant Flow

Participant milestones

Participant milestones
Measure
Control
Normal cesarean technique.
Uterine Cooling
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Overall Study
STARTED
100
100
Overall Study
COMPLETED
100
100
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Uterine Cooling During Cesarean Delivery to Reduce Blood Loss and Incidence of Postpartum Hemorrhage

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Total
n=200 Participants
Total of all reporting groups
Age, Continuous
30.1 years
STANDARD_DEVIATION 4.8 • n=5 Participants
31.7 years
STANDARD_DEVIATION 5.1 • n=7 Participants
30.9 years
STANDARD_DEVIATION 5.0 • n=5 Participants
Sex: Female, Male
Female
100 Participants
n=5 Participants
100 Participants
n=7 Participants
200 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
4 Participants
n=5 Participants
5 Participants
n=7 Participants
9 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
14 Participants
n=5 Participants
17 Participants
n=7 Participants
31 Participants
n=5 Participants
Race (NIH/OMB)
White
82 Participants
n=5 Participants
78 Participants
n=7 Participants
160 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Height (ft)
5.4 feet
STANDARD_DEVIATION 0.2 • n=5 Participants
5.4 feet
STANDARD_DEVIATION 0.3 • n=7 Participants
5.4 feet
STANDARD_DEVIATION 0.3 • n=5 Participants
Weight (lbs)
200 pounds
STANDARD_DEVIATION 49 • n=5 Participants
187 pounds
STANDARD_DEVIATION 39 • n=7 Participants
194 pounds
STANDARD_DEVIATION 45 • n=5 Participants
Gravidity
2.5 pregnancies
n=5 Participants
2.4 pregnancies
n=7 Participants
2.5 pregnancies
n=5 Participants
Parity
1.0 births
n=5 Participants
1.0 births
n=7 Participants
1.0 births
n=5 Participants
Gestational Age (wks)
38.5 weeks
STANDARD_DEVIATION 2.2 • n=5 Participants
38.0 weeks
STANDARD_DEVIATION 4.2 • n=7 Participants
38.3 weeks
STANDARD_DEVIATION 3.4 • n=5 Participants
Fetal Presentation
Cephalic
84 participants
n=5 Participants
83 participants
n=7 Participants
167 participants
n=5 Participants
Fetal Presentation
Breech
14 participants
n=5 Participants
14 participants
n=7 Participants
28 participants
n=5 Participants
Fetal Presentation
Transverse
1 participants
n=5 Participants
2 participants
n=7 Participants
3 participants
n=5 Participants
Fetal Presentation
Oblique
1 participants
n=5 Participants
0 participants
n=7 Participants
1 participants
n=5 Participants
Fetal Presentation
Compound
0 participants
n=5 Participants
1 participants
n=7 Participants
1 participants
n=5 Participants
Multiple Gestations
yes
11 participants
n=5 Participants
7 participants
n=7 Participants
18 participants
n=5 Participants
Multiple Gestations
no
89 participants
n=5 Participants
93 participants
n=7 Participants
182 participants
n=5 Participants
Fetal Weight (g)
3504 grams
STANDARD_DEVIATION 852 • n=5 Participants
3471 grams
STANDARD_DEVIATION 822 • n=7 Participants
3488 grams
STANDARD_DEVIATION 835 • n=5 Participants
Previous Cesareans
0.8 cesareans
n=5 Participants
0.7 cesareans
n=7 Participants
0.8 cesareans
n=5 Participants
Trial of Labor
yes
7 participants
n=5 Participants
16 participants
n=7 Participants
23 participants
n=5 Participants
Trial of Labor
no
93 participants
n=5 Participants
84 participants
n=7 Participants
177 participants
n=5 Participants
Pre-op Epidural
yes
9 participants
n=5 Participants
17 participants
n=7 Participants
26 participants
n=5 Participants
Pre-op Epidural
no
91 participants
n=5 Participants
83 participants
n=7 Participants
174 participants
n=5 Participants

PRIMARY outcome

Timeframe: During surgery and in the PACU (approximately 3 total hours)

At the conclusion of the surgery, blood loss will be calculated by measuring the content of blood in the suction canister, and by weighing the surgical sponges. The amount of blood loss in the PACU will be measured by weighing pads.

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Blood Loss
Intraoperative blood loss
616 cc
Standard Deviation 411
418 cc
Standard Deviation 317
Blood Loss
PACU blood loss
141 cc
Standard Deviation 199
106 cc
Standard Deviation 170
Blood Loss
Total blood loss
756 cc
Standard Deviation 462
536 cc
Standard Deviation 429

SECONDARY outcome

Timeframe: 48 hours post operative period

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Change in Pre- vs Post-operative Hematocrit
4.3 percent
Standard Deviation 3.6
4.8 percent
Standard Deviation 3.1

SECONDARY outcome

Timeframe: During surgery and in the PACU (approximately 3 total hours)

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Use of Uterotonic Medications
yes
5 participants
4 participants
Use of Uterotonic Medications
no
95 participants
96 participants

SECONDARY outcome

Timeframe: Intraoperatively

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Use of Extra Oxytocin
yes
1 participants
1 participants
Use of Extra Oxytocin
no
99 participants
99 participants

SECONDARY outcome

Timeframe: Intraoperatively

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Use of Methergine
yes
2 participants
2 participants
Use of Methergine
no
98 participants
98 participants

SECONDARY outcome

Timeframe: Intraoperatively

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Use of Hemabate
no
99 participants
98 participants
Use of Hemabate
yes
1 participants
2 participants

SECONDARY outcome

Timeframe: Intraoperatively

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Use of Cytotec
yes
4 participants
3 participants
Use of Cytotec
no
96 participants
97 participants

SECONDARY outcome

Timeframe: Intraoperatively

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Bakri Bulb Placement
yes
3 participants
0 participants
Bakri Bulb Placement
no
97 participants
100 participants

SECONDARY outcome

Timeframe: Intraoperatively

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Use of Additional Measures to Control Blood Loss, Including Pharmacological and Surgical Interventions
yes
6 participants
5 participants
Use of Additional Measures to Control Blood Loss, Including Pharmacological and Surgical Interventions
no
94 participants
95 participants

SECONDARY outcome

Timeframe: During surgery and in the PACU (approximately 3 total hours)

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Requirement of Blood Products
yes
2 participants
3 participants
Requirement of Blood Products
no
98 participants
97 participants

SECONDARY outcome

Timeframe: Intra-op, Post-Op

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Total Blood Loss Greater Than 1000 cc
yes
21 participants
9 participants
Total Blood Loss Greater Than 1000 cc
no
79 participants
91 participants

SECONDARY outcome

Timeframe: During surgery and in the PACU (approximately 3 total hours)

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Requirement of Cesarean Hysterectomy
yes
0 participants
0 participants
Requirement of Cesarean Hysterectomy
no
100 participants
100 participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Pre-op, Intra-op, Post-Op

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Patient Temperature
Pre-operative
98.3 degrees Fahrenheit
Standard Deviation 0.4
98.4 degrees Fahrenheit
Standard Deviation 0.7
Patient Temperature
Intra-operative
97.7 degrees Fahrenheit
Standard Deviation 1.0
97.9 degrees Fahrenheit
Standard Deviation 0.7
Patient Temperature
Post-operative
97.8 degrees Fahrenheit
Standard Deviation 0.4
97.9 degrees Fahrenheit
Standard Deviation 1.0

OTHER_PRE_SPECIFIED outcome

Timeframe: During hysterotomy repair

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Total Time Uterus Wrapped
9.3 minutes
Standard Deviation 4.3
9.4 minutes
Standard Deviation 4.0

OTHER_PRE_SPECIFIED outcome

Timeframe: Immediately following hysterotomy repair

Outcome measures

Outcome measures
Measure
Control
n=100 Participants
Normal cesarean technique.
Uterine Cooling
n=100 Participants
Immediately following delivery of the fetus the uterus will be externalized in the usual fashion and the body of the uterus cephalad to the hysterotomy incision will be wrapped in sterile surgical towels saturated in sterile, iced normal saline. These towels will come from a sterile cooling pot set to 30 degrees Fahrenheit. Iced saline-soaked towels will be kept in place for a minimum of 5 minutes and replaced at the discretion of the attending obstetrician until the hysterotomy is closed and the uterus is replaced into the patient's abdomen.
Uterine Temperature After Wrap Removed
88.3 degrees Fahrenheit
Standard Deviation 3.0
75.5 degrees Fahrenheit
Standard Deviation 7.8

Adverse Events

Control

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Uterine Cooling

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Janice Mitchell, PI

Baylor University Medical Center

Phone: 713-705-6240

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place