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Maternal, Child & Adolescent Health Division​

CA-PARC • Obstetric Hemorrhage PAMR CommitteePrevention of Obstetric Hemorrhage Deaths:Recommendations for Clinicians, Facilities and Healthcare Systems

The California Pregnancy-Associated Review Committee (CA-PARC) was established to review and report on California’s maternal deaths (HSC 123636). While the California Department of Public Health (CDPH) provides administrative and scientific support to CA-PARC, recommendations for preventing maternal deaths are made solely by the members of CA-PARC.

The Obstetric Hemorrhage Pregnancy-Associated Mortality Review Committee, part of CA-PARC, looked at obstetric hemorrhage deaths in California between 2014 and 2018. Obstetric hemorrhage refers to excessive bleeding during pregnancy, childbirth, or postpartum. During this time, there were 2,409,732 live births and 49 deaths from obstetric hemorrhage. The committee identified several causes of hemorrhage, and some were more preventable than others. Improving preconception health and using system-based strategies for hemorrhage preparedness, detection, and clinical management are key to reducing deaths from hemorrhage.

Key findings from reviews of 49 obstetric hemorrhage deaths:

After cardiovascular disease, hemorrhage was the second leading cause of pregnancy-related deaths in California from 2014 to 2018

Top causes of hemorrhage*:

Donut chart*Total doesn’t add up to 100% due to rounding
  • 33% Placenta accreta spectrum
  • 30% Intra-abdominal bleeding (including surgical lacerations)
  • 20% Uterine atony
  • 12% Ruptured ectopic pregnancy
  • 14% other
  • Placenta accreta spectrum is a group of placental disorders caused by the placenta attaching abnormally to the uterus (womb) which can lead to serious pregnancy complications such as severe hemorrhage.
  • Intra-abdominal bleeding/laceration is bleeding in the space between abdominal muscles and internal organs as a result of a pregnancy complication or complications of surgery.
  • Uterine atony refers to uterus muscles failing to contract (tighten) after childbirth, which is needed to close off blood vessels.
  • Ruptured ectopic pregnancy is when the fertilized egg attaches and grows outside the uterus and bursts causing life-threatening bleeding.

Characteristics of the individuals who died:

  • 58%  had two or more births prior to death compared to 29% of the birthing population

  • 75%  had a first-time or repeat cesarean delivery compared to 32% of the birthing population

  • 33%  gave birth at hospitals with fewer than 1,200 annual births (low birth volume) compared to 12% of the birthing population

Preventability:

  • 63% of all hemorrhage deaths likely could have been avoided, with some causes—such as uterine atony and intra-abdominal bleeding/lacerations—more preventable than others

Health Care Contributing Factors:

  • 89%  of the deaths were linked to clinician, facility, or healthcare system factors that happened during or after labor in hospitals

  • 78%  delays in acting quickly or getting more advanced care

  • 72%  delays in recognizing the signs and symptoms of hemorrhage

  • 53%  not giving enough blood products when it was needed

Patient-level Contributing Factors:

  • 55%  of deaths were related to patient-level factors

  • 20%  Anemia (low iron)

  • 18%  Chronic conditions like heart disease or obesity

These findings were adapted from Krakowiak P, Morton CH, et al. Pregnancy-Related Mortality in California Due to Obstetric Hemorrhage. Obstet Gynecol. 2025 Feb 13. doi: 10.1097/AOG.0000000000005847. Reprinted with permission from Wolters Kluwer Health, Inc., copyright #6290470073999.

CA-PARC Prevention Recommendations for Clinicians, Facilities and Healthcare Systems:

High Level Recommendations:

  • Obstetrics (OB) clinicians and nursing staff should be vigilant for signs of maternal hemorrhage and be familiar with the California Maternal Quality Care Collaborative (CMQCC) OB Hemorrhage Toolkit, V. 3.0.

  • All birth facilities, particularly small-volume or low-resource hospitals, should be prepared to manage severe hemorrhage using standardized protocols, engage in simulation drills with an emphasis on roles and teamwork, and develop consistent methodology for quantification of blood loss. (See CMQCC OB Hemorrhage Toolkit, V. 3.0.)

  • Emergency Department clinicians should have training and standardized protocols for evaluation of abdominal pain, ectopic pregnancy, and antepartum bleeding at all gestations. (See CMQCC OB Hemorrhage Toolkit, V. 3.0.)

  • All pregnant patients should be screened for iron deficiency anemia and treated appropriately.
  • For patients at high risk for hemorrhage, a patient-centered care plan should be developed in the prenatal setting with a Maternal-Fetal Medicine (MFM) consult that includes counselling patients/family about pregnancy options and risks.

breastfeeding mother

Detailed Recommendations:

Delays in Response and Recognition

  • Obstetric (OB) clinicians and nursing staff should be vigilant for signs of maternal hemorrhage by monitoring quantitative blood loss (QBL), hemodynamic vital signs, labs, and patient complaints of abdominal pain throughout birth hospitalization.
  • OB clinicians, Certified Nurse Midwives and care teams should have a greater understanding of Amniotic Fluid Embolism (AFE) pathophysiology and diagnostic criteria to distinguish between AFE and hemorrhage.
  • OB Nursing staff should receive education and training regarding responsibility to escalate care for pregnant and postpartum patients using Maternal Early Warning Signs in all locations of care (Emergency Department, Operating Room, Post-Anesthesia Care Unit, Postpartum, Labor and Delivery, and Emergency Medical Systems).
  • Prepare all birth facilities, particularly small-volume or low-resource hospitals, to manage severe hemorrhage using standardized tools (see CMQCC OB Hemorrhage Toolkit, V. 3.0), including the following:
    • a plan to transfer each patient at high risk of hemorrhage to a higher-level facility prior to giving birth, whenever possible;
    • physician availability to evaluate patient in timely manner;
    • trained staff to assist in emergency cesarean or unplanned hysterectomy with necessary equipment;
    • consultation policies with back-up surgeons and medical specialties- i.e., interventional radiology, gynecologic oncology, general surgery, and Blood Bank;
    • blood products on hand or in storage at facility, especially fresh frozen plasma (FFP), platelets, cryoprecipitate, O negative blood; and
    • regular staff training including low-fidelity simulation or drills, with annual Continuing Medical Education on the acute management of obstetric hemorrhage.
  • Train multidisciplinary clinicians to be proactive and aggressively manage severe hemorrhage. Key considerations include the following:
    • Establishing early wide bore IV access.
    • Moving along the stage-based pathway in a standardized hemorrhage protocol rather than repeat procedures.
    • Requesting emergency-release blood products early.
      • For an evolving hemorrhage, do not delay transfusion by ordering type and crossmatched red blood cells. Instead, use of un-crossmatched O type blood is recommended.
      • Consider early transfusion for patients with a severe hemorrhage that is not responsive to first- and second-line treatment measures.
      • Consider point-of-care monitoring for close assessment of hemoglobin (Hb)/hematocrit (Hct) and coagulation indices.
    • Providing continuous heart rate and pulse oximetry monitoring and every 1-2 minute blood pressure assessments.
    • Including tranexamic acid (TXA) among medication treatments when appropriate.
    • Considering early placement of an intrauterine device (e.g., intrauterine balloon tamponade; vacuum device) for patients with refractory uterine atony that is not responsive to first- and second-line uterotonics or severe placental bed bleeding.
    • Mobilizing OB Rapid Response Team.
      • Consider early requests for help from allied specialties (General Surgery, Emergency Department, Hospital Medicine, Intensive Care, Anesthesiology).
    • If atony treatment with an intrauterine device is not successful, proceeding to hysterectomy or interventional radiology (based on the acuity or severity of hemorrhage, patient’s hemodynamic status, and ability to mobilize surgical/radiological support).
    • If AFE is suspected, considering specialist input (from anesthesiology, intensive care, cardiology, and other surgical disciplines) as massive transfusion and hemostatic and cardiovascular support are often required.
    • Not transferring patients from the operating room or the labor and delivery unit to the postpartum unit or intensive care unit until bleeding has resolved and patients are hemodynamically stable.
    • Training all staff to recognize that patients with hemodynamic instability after delivery in the absence of external bleeding should undergo emergent clinical evaluation for intra-abdominal hemorrhage, with a high likelihood for needing surgical exploration.

Lack of Adherence to Protocols

  • Attention should be paid to family concerns about a plan of care during intrapartum and postpartum and responses to these concerns should be documented.
  • All birth facilities need to standardize hemorrhage protocols, engage in simulation drills with an emphasis on roles and teamwork, and develop consistent methodology for quantification of blood loss.
  • The Transfusion Service (or Blood Bank), in coordination with the OB Department, needs to create hemorrhage protocols for a) emergent release of blood products and b) massive transfusions.

Inadequate Assessment

  • In the prenatal setting, for patients with diagnosed placenta accreta spectrum or with other high risks for hemorrhage, a patient centered care plan should be developed with a MFM consult that includes counselling patients/family about pregnancy options and risks involved and scheduling delivery in a well-resourced facility with a comprehensive surgical team.
  • All pregnant patients should be screened for iron deficiency anemia and treated appropriately. Automated systems will facilitate implementation and sustainability.
  • All patients should be assessed for hemorrhage risk during labor admission and again prior to delivery. Planning should occur for those at elevated risk.
  • For patients who refuse blood products, OB clinicians need to have a patient centered plan for optimizing hemoglobin prior to delivery and for managing hemorrhage should it occur at birth.

Coordination of Care

  • Facility should ensure that OB clinicians and Anesthesia teams coordinate with lab and blood banks to facilitate ample response to rapidly identify and manage blood loss over 1500 ml (a key concern in abruption, uterine rupture, infection, and other conditions), including the following:
    • ensuring timely turnaround of lab values to identify Disseminated Intravascular Coagulation (DIC) (including coagulant values and fibrinogen);
    • reaching team agreement to treat low fibrinogen values; and
    • establishing time frames of availability for FFP, cryoprecipitate, or fibrinogen concentrate.
  • Teamwork is critical in complex hemorrhage cases; birth facilities need to use standardized communication to ensure clear roles and actions.
    • Create safe places for people to speak up and be heard.

Emergency Medicine

  • Emergency medicine clinical staff need to be aware of the highlights of the maternal quality toolkits to assess all patients for pregnancy and postpartum status and to know when to consult with an OB clinician.
  • Provide training and standardized protocols for Emergency Department clinicians for evaluation of abdominal pain, ectopic pregnancy, and antepartum bleeding at all gestations.

Discrimination

  • For ALL patients, OB clinicians and facilities need to provide culturally sensitive, responsive, and non-judgmental care.
  • Call social work to assist with communication and education. Patients who experience disrespectful and judgmental care are more likely to delay or not seek early care.
  • For patients with non-English language preferences, OB clinicians and birth facilities are legally obligated to have qualified interpreters available in person or virtually for all decision making and have key educational materials translated in patients’ preferred languages.
    • If the clinician speaks the patient's language, document that in the patient's record. 
    • Use family members only as a last resort for interpretation.
  • Hospitals and health care systems need to examine how implicit bias, structural discrimination, and systemic racism impact patient access to high-quality, risk-appropriate maternity care and enact anti-racist policies and practices to ensure respectful, patient-centered care delivery and eliminate inequities.

The findings and recommendations in this document are those of CA-PARC and do not necessarily represent the views or opinions of the California Department of Public Health (CDPH) or the California Health and Human Services Agency. While CDPH provides administrative and scientific support to CA-PARC, recommendations for preventing maternal deaths are made solely by the members of CA-PARC.

CDPH/MCAH acknowledges the invaluable contributions of the CA-Pregnancy-Associated Mortality Review Committee (Obstetric Hemorrhage) in generating essential data for this factsheet from their reviews of maternal deaths.

Resources:

Also see Recommendations for Agencies, Organizations and Institutions.​​​

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