Trauma in Pregnancy - Ob Hospitalist Group · Trauma impacts 5-9% of all pregnancies ... Murphy et...
Transcript of Trauma in Pregnancy - Ob Hospitalist Group · Trauma impacts 5-9% of all pregnancies ... Murphy et...
Background
Trauma impacts 5-9% of all pregnancies
Trauma is the leading cause of non-obstetric maternal mortality in the United States
Causes 46% of maternal deaths
#1 cause of fetal death is maternal death Primary cause of maternal death is due to blunt trauma
Intracranial injuries
Fetal death approaches 40-50% in life threatening trauma
Pregnancy related trauma: 19.6% associated with Illicit drugs
12.9% associated with alcohol
Brown, HL. Trauma in Pregnancy. Obstet Gynecol 2009;114:147-60Schiff MA. Pregnancy outcomes following hospitalisation for a fall in Washington State from 1987 to 2004. BJOG 2008;115:1648-1654Kady, D et al. Trauma during pregnancy: An analysis of fetal outcomes in a large population. Am J Obstet Gynecol 2004;190:1661-8Schiff MA et al. The effect of Air Bags on Pregnancy outcomes in Washington State. Obstet Gynecol 2010;115(1):85-92Vivian-Taylor J et al. Motor vehicle accidents during pregnancy: a population-based study. BJOG 2012;119:499-503Raptis et al. Imaging of Trauma in the pregnant patient. RadioGraphics 2014;34:748-63Murphy et al. Trauma in Pregnancy: assessment, management, and prevention. Am Fam Physician 2014;90(10):717-24.Mirza et al. Trauma in pregnancy: A systemic approach. Am J Perinatol 2010;27:579-86.Oxford et al. Trauma in pregnancy. Clin Obstet Gynecol 2009;52(4):611-629
Background
Trauma in pregnancy: MVA 49% (other sources indicate up to 80%)
Falls 25%
Assault 18%
GSW, homicide, or penetrating injury 4%
Suicide 3%
Burns 1%
The majority of fetal losses occur after MINOR injury Fetal loss occurs at a much lower rate from minor injuries (1-
5%), but minor injuries are much more common, so the net result is higher fetal loss
90% of traumatic injuries are minor
60-70% of trauma related fetal injuries are a result of minor injuries
Background
5-29% of pregnant patients are delivered during the hospitalization for trauma
70% by Cesarean delivery
Most delivered in 24 hours
1 in 12 pregnancies are complicated by trauma
Intimate Partner Violence in up to 31.5% of pregnancies 20% (or more) of nonfatal violent crimes are experienced by
women
First trimester pregnancy loss when occurs is usually due to hypovolemia and hypotension
Motor Vehicle Accidents
Motor Vehicle Accidents account for 70-80% of major trauma events in pregnancy
82% of fetal trauma losses result from MVA
Responsible for 1300-3900 fetal losses each year
5.9% fetal death rate
368 maternal fatalities due to MVA yearly (2.2% maternal deaths)
Blunt trauma is the #1 cause
Motor Vehicle Accidents
Perinatal death rate associated with MVA of 3-6/100,000 live births in high income countries
2.8% of women experience a crash during pregnancy
Intoxicants are involved 45%
Only 34-64% of pregnant patients involved in MVA are restrained
Penetrating Trauma
GSW or stab wounds
More likely to cause uterine or direct fetal injury
Fetal demise up to 65% (40-65%)
Fetal injuries in 70%
Can cause direct fetal injury or injury to uterine vasculature, placenta, or umbilical cord
Upper abdominal injuries likely to cause bowel injury due to superiorly displaced bowel by gravid uterus
Falls
Nearly 27% of pregnant women will experience a fall
Falls account for 24% of maternity injury hospitalizations
Majority of falls (79%) occur in the third trimester
2.3x more likely to be hospitalized for a fall during pregnancy compared to non-pregnant reproductive age women
Increased risk of falling in pregnancy due to: Increased joint laxity
Weight gain
Change in center of gravity
Other anatomical changes
Falls
Types of falls: Stumbling, slipping,
tripping from the same level: 35%
Falls on stairs or steps: 17%
Fall from one level to another: 5%
Other types: 13%
Unspecified falls: 31%
Maternal Anatomic and Physiological Considerations
During first trimester, uterus is protected by the bony pelvis
Heart Rate Blood Pressure Blood Volume
Maternal Anatomic and Physiological Considerations
Heart is rotated by 15 to 20 degree left axis deviation
Respiratory alkalosis with compensatory metabolic acidosis Secondary to physiologic hyperventilation
Maternal values with lower PaCO2, increased PaO2, and lower bicarbonate concentration
Hematological changes Dilutionial anemia (normal Hgb 10.5)
Plasma volume increases 45%
Leukocytosis can be normal with WBC up to 16,000 normal in first and second trimesters (and can be elevated up to 30,000 in labor)
Normal fibrinogen >200
Maternal Anatomic and Physiological Considerations
Gastrointestinal changes: increased risk of aspiration Increased intraabdominal pressure
Relaxation of lower esophageal sphincter
Delayed gastric emptying
Gravid uterus can result in IVC compression At 20w gestational age, in supine position the uterus can
compress the IVC resulting in 30% decrease in cardiac output
Left lateral tilt of 15 to 30 degrees (most authors recommend 25 to 30 degrees)
Risks to Pregnancy
Trauma is associated with: First trimester loss
Preterm delivery
Preterm labor
Premature rupture of membranes
Placental abruption
Uterine rupture
Stillbirth
Pregnancy Specific Injury Considerations: Placental Abruption
Placenta relatively inelastic and more rigid than uterine wall
65-75% fetal mortality for post trauma abruption
Placental abruptions: 1-5% occurrence with minor trauma
20-50% with major trauma
Difficult to diagnose by imaging Unless significant retroplacental clot
In one study, 8 or more contractions were present in the first 4h in 100% of patients with the final diagnosis of placental abruption (Murphy and Quinlan)
Pregnancy Specific Injury Considerations: Uterine Rupture
Uterine rupture and lacerations are rare Complicate about 1% of traumas
Traumatic uterine rupture Almost 100% fetal mortality
10% maternal mortality
Best diagnosed by CT 75% involve fundus
Increased risk if prior C/S
Blood flow to the uterus approximately 600ml per minute
Typically present with wide spectrum of clinical findings Severe abdominal pain, shock, no FHT noted
Consider uterine trauma with significant force blunt trauma: recognize it!
Pregnancy Specific Injury Considerations: Uterine Lacerations
Penetrating injuries more likely to injure uterus (and fetus) during pregnancy
GSW to abdomen:
70% result in fetal injuries
Fetal mortality rate 40-65%
Pregnancy Specific Injury Considerations: Pelvic Fractures
Pelvic and acetabular fractures rare but carry significant morbidity and mortality
Maternal mortality with pelvic fracture: 9%
Fetal mortality with pelvic fracture: 35%
Pelvic fractures: 73% from MVA
14% from falls
13% from pedestrian vs MV
Pregnancy Specific Injury Considerations:Other Injuries
Retroperitoneal hemorrhage Ovarian and other pelvic veins are engorged, increasing the risk of
hemorrhage with blunt or penetrating injuries
Genitourinary System Hydronephrosis in later pregnancy increases risk to collecting system
Bladder increased risk of injury as displaced superiorly later in pregnancy
Vaginal lacerations
Splenic rupture or hepatic injury Spleen enlarged
Gravid uterus displaces spleen and liver closer to rib cage in pregnancy which increases chance of injury
Up to 25% risk of significant splenic or hepatic injury after severe blunt trauma in pregnancy
Pregnancy Specific Injury Considerations:Other Injuries
Bowel injury Bowel displaced superiorly
Increased risk of injury from upper abdominal penetrating wound, lower risk of injury from lower abdominal penetrating wound
Direct fetal injury <1% from blunt trauma
Skull fracture
Up to 70% from penetrating injury
Fetomaternal hemorrhage Reported in 2.6 to 30% of pregnant trauma patients
Evaluate by Kleihauer-Betke test Measures percent of fetal red blood cells containing
fetal hemoglobin in maternal blood
Assists in calculation of anti-D immune globulin dose
Positive KB doesn’t predict adverse outcome (significant FMH will be accompanied by FHR changes)
Kady et al. Trauma During Pregnancy: An analysis of maternal and fetal outcomes in a large population. Am J Obstet Gynecol2004;190:1661-1668.
Retrospective cohort study
Large study, reviewed all maternal trauma admissions in CA hospitals from 1991-1999
Traumas included falls, MVA, assaults
MVA led to majority of admissions
Falls were the most common mechanism of injury leading to delivery
10,316 deliveries identified in 4,833,286 total deliveries
24% delivered during initial trauma admission
Highest risk of maternal death: Intracranial injuries
Internal injuries (intraabdominal hemorrhage)
Highest rate of fetal injuries: Open injuries
Internal maternal trauma
Kady et al.
Delivery at hospitalization at time of trauma admission
9-fold increase in abruption
42-fold increase in uterine rupture
69-fold higher maternal death
2-fold increase risk of PTD
4.6-fold increase in fetal death
3-fold increase in neonatal death
Delivered at hospitalization subsequent to trauma
20% increase risk of PTD
56% increase in abruption rate
38% increase in low birth weight
2.7-fold increase risk of PTL
4-fold increase in maternal death
No significant increased risk of fetal or neonatal mortality
Kady et al.
Non-severe Injuries(X-fold increase)
Abruption: 7.7
Uterine Rupture: 16
Maternal Death: 4.9
Fetal Death: 2.7
Severe Injuries(X-fold increase)
Abruption: 23
Uterine Rupture: 233
Maternal Death: 555
Fetal Death: 17
Kady et al.
These authors conclude that women sustaining trauma during pregnancy, even if not delivered at the inciting event, continue to have increased risks of maternal morbidity and should be monitored closely during the remainder of the pregnancy
Schiff MA et al. Maternal and Infant outcomes after injury during pregnancy in Washington state from 1989 to 1997. J Trauma Inj Infect Critical Care 2002;53:939-945.
Retrospective cohort study of term patients
Evaluated maternal and infant outcomes after trauma injury documented in WA from 1989-1997
Only included women delivering at the trauma admission
Compared patients considered “severely injured” to those considered “non-severely injured”
Based on ISS (Injury Severity Score)
Schiff et al.
“Severely injured” term patients compared to “non-severely injured”
Increased relative risk: Abruption 15.8
C/S 4.3
Non-reassuring FHR 3.9
“Non-severely injured” term patients
Increased relative risk: Abruption 4.2
Infant hypoxia 4.6
Fetal death 13.6
Schiff MA et al. Pregnancy outcomes following hospitalisation for motor vehicle crashes in Washington state from 1989 to 2001. Am J Epidemiol2005;161:503-510.
Subsequent follow-up study of statewide pregnancy outcomes in WA
Specifically evaluated patients in MVA from 1989-2001
82.9% discharged home undelivered, 17.1% delivered during index hospitalization for MVA
Found the ISS didn’t correlate with adverse pregnancy outcomes
Concluded that women hospitalized for MVA at increased risk of adverse pregnancy outcomes, regardless of the presence (or absence) of identifiable physical injuries
Including:
PTL
Abruption
Meconium at delivery
Neonatal respiratory distress
Vivian-Taylor et al. Motor vehicle accidents during pregnancy: a population-based study. BJOG2012;19:499-503
Population based study in New South Wales, Australia
Looked at MVA in a 7 year inclusive time period (2000-2007)
Out of 604,380 women giving birth, 2,147 were admitted after a MVA
Ratio of 3.5 admissions per 1000 maternities
Type of MVA: Vehicle occupant: 88.6%
Pedestrian: 3.4%
Motorcycle riders: 0.9%
Bicycle riders: 0.8%
Unknown: 6.9%
Vivian-Taylor et al.
Most were considered to have only minor injuries 77.9% admitted for one day or less
Pregnancy outcome data (available for 95.2%) 0.4% SAB <20w
3.5% delivered at >20w during the same hospitalization
96% were undelivered at the time of discharge
Had similar delivery outcomes to women not involved in MVA
Injury profile: 19% with bruising to abdomen, pelvis, or lower back
7% pelvic fracture
8% intraabdominal injuries
10% admitted to ICU
11% transfusion
4% maternal death
Vivian-Taylor et al.
Low overall perinatal mortality: 1.4%
If delivery required at the admission for MVA: 33% perinatal death
20.8% fetal demise
61% delivered by C/S
Increased risk of PTD
Antepartum hemorrhage
>25% abruption
Contrary to other studies, if the MVA didn’t precipitate delivery at the index hospital admission, there was no increased risk of PTD, perinatal death, or other pregnancy or delivery adverse outcomes during the remainder of the pregnancy
Schiff et al. The effect of air bags on pregnancy outcomes in Washington state. Obstet Gynecol2010;115(1):85-92.
Several case reports suggested increased rates of uterine rupture, abruption, and ROM following air bag deployment
Previous study by Klinich et al refuted these case reports (small study)
Suggested appropriate 3-point seat belt use in conjunction with air bags associated with fewer adverse pregnancy outcomes
Prior study by Metz et al (small study) 1 abruption with fetal death in 30 air bag deployed crashes
73% with post MVA contractions
20% with abnormal FHR tracing
Lack of population based cohort study
Schiff et al.
Airbags typically deploy: Moderate to severe frontal crash
Specified threshold determined by velocity change
Airbags deploy with >1200# force at speeds averaging 230 mph
Schiff et al.
Study looking at effects of air bag use on pregnancy outcomes in Washington state from 2002-2005
Studied 3348 non-rollover MVA with pregnant front seat occupant
Frequency of 10.3 MVA per 1000 deliveries
42.9% 2nd trimester
31% 3rd trimester
Nonsignificant increase in PTL and fetal death with air bag deployment
When controlling for various factors, authors found maternal and perinatal outcomes were similar between air bag equipped and unequipped vehicles
Appears that for the majority of maternal and perinatal outcomes, there are no increased risks associated with air bag deployment
Schiff MA. Pregnancy outcomes following hospitalization for a fall in Washington state from 1987 to 2004. BJOG2008;115(1):1648-1654
Schiff et al.
Authors evaluated pregnancy outcomes following a fall
Retrospective study of 693 pregnant women hospitalized after a fall from 1987-2004
Of those patients evaluated: 67.1% discharged home
undelivered
32.9% delivered during same hospitalization
79.3% in 3rd trimester
11.3% in 2nd trimester
Schiff et al.
Of those hospitalized for a fall, there were increased risks of:
PTL: 4.4 fold
Abruption: 8 fold
IOL: 90%
C/S: 30%
Fetal distress: 2.1 fold
Fetal hypoxia: 2.9 fold
Weiss HB et al. Fetal death related to maternal injury. J Am Med Assn 2001;286:1863-1868
Reviewed fetal death certificates from 1995 through 1997
Study encompassed 16 states, representing 55% of the United States population
240 injury related fetal deaths
11% (27 deaths) associated maternal deaths
Injury related rate of 3.7 fetal deaths per 100,000 live births
Highest rate of injury related fetal deaths was in 15-19 year-old gravid patients
9.3 fetal deaths per 100,000 live births
Dannenberg et al. Obstetrics: homocide and other injuries as causes of maternal death in New York City, 1781 through 1991. Am J Obstet Gynecol1995;172:1557-1564
Reviewed medical examiner records from 1987 through 1991 in New York
First study to outline homicide as a leading cause of intentional injury-related deaths in an urban population
Majority of patients were nonviable 20 of 115 included patients were viable
10 were within 6 months postpartum
Types of maternal injuries Homicide: 63%
GSW: 51%
Stabbing: 17%
Strangulation: 14%
Others: Burns: 7%, Blunt force: 7%, Unspecified: 1%
Suicide: 13%
MVA: 12%
Overdose: 7%
Other authors have noted high rates of interpersonal violence during pregnancy (31.5%)
Cahill et al. Minor trauma in pregnancy-is the evaluation unwarranted? Am J Obstet Gynecol2008;198:208.e1-208.e5
3-year prospective cohort study of noncatastrophic trauma
Delivery information available for 236 of 317 patients evaluation
Of the 317 patients: Evaluated with standardized protocol
Detailed documentation of event
Complete physical examination
Fetal ultrasound
Laboratory evaluation
Blood type, CBC, PT, PTT, fibrinogen, and KB test
If admitted, KB repeated at discharge
Evaluation of pregnancy outcome data
Cahill et al.
Standardized monitoring protocol of 4 hours of continuous monitoring
If more than 5 contractions in any hour, admitted for 24h continuous monitoring
13.9% had >5 contractions per hour and required extended monitoring
2.8% had positive KB at presentation However, none of the 13.9% requiring additional
monitoring had a positive KB at admission or discharge
One patient with a fall at 35w delivered at 41w and was noted to have a partial abruption at delivery
Likely not related to the trauma
Cahill et al.
Study by Dhanraj and Lambus Compared KB results from 151 pregnant trauma patients to
100 gestational age matched controls
No statistically significant difference in positive KB results
Of the patients with a positive KB, none were associated with placental abruption or fetal distress
Cahill et al considers in light of these studies together, suggest in the absence of maternal injury or other clinically concerning signs
Recommend adopting practice of a “physical exam, brief fetal well-being assessment, and patient counseling” is adequate assessment after a minor traumatic event
Imaging of the Pregnancy Trauma Patient
Raptis et al. Imaging of Trauma in the Pregnant Patient. RadioGraphics 2014;34:748-763.American College of Obstetricians and Gynecologists. Guidelines for Diagnostic imaging During
Pregnancy and Lactation. ACOG Committee Opinion No. 656. Obstet Gynecol 2016;127:e75-80.
Imaging
Imaging critically important: early diagnosis of maternal injuries is paramount as maternal decompensation with shock results in poor maternal and fetal outcome
Fetal death rates approach 80% with maternal shock victims
Intracranial injuries are the major cause of maternal deaths, followed by intraabdominal injuries
Remember left lateral tilt
Imaging: Ultrasound
Fetal assessment Estimate gestational age Quantify AFI Evaluate placenta
FAST scan (Focused Assessment with Sonography in Trauma)
Advantages: Safe Readily available Portable No preparation required
Disadvantages: Difficult to detect small amounts of intraperitoneal fluid Poor detection of solid and hollow organ injury 50-80% false negative rate of detecting abruption
US is not a substitute for a clinically needed diagnostic CT examination
Imaging: Conventional Radiology
“Workhorse” modality of trauma imaging includes conventional radiology and CT
Per American College of Radiology 2008 practice guidelines and supported by ACOG
Fetal radiation doses of <50 mGy are not associated with increased fetal anomalies or fetal loss
Very early pregnancy (<2w): “all or none”
2-20w risk of teratogenesis (threshold 50-150mGY)
Increased baseline risk of cancer Exposure to 50 mGY: risk 2-fold
Borderline risk of 1:2000. New risk is 1:1000
Increased overall fetal lifetime risk of cancer increased by 2%
Imaging: Conventional Radiology
Estimated fetal radiation doses: C-spine (AP, lateral) <0.001 mGY
CXR (PA, lateral) 0.002 mGY
Abdomen (AP) 1-3 mGY
Head CT 0 mGY
Chest CT (PE protocol) 0.2 mGY
Abdomen and pelvis 25 mGY
Imaging: Computed Tomographic Examination
Modality of choice for: Intracranial pathology
Chest, abdominal, and pelvic injuries
Bladder injuries (CT cystogram)
IV contrast is FDA Category B medication Improves detection of maternal and fetal injuries by providing
vascular contrast in organs and opacification of vascular structures including the placenta
Radiologist detection of abruption is practitioner dependent
Imaging: Magnetic Resonance Imaging
Excellent choice for specific situations Spinal injuries
Complex spinal or spinal cord injuries
Complex neurological injuries
Soft tissue injuries
Also option for follow up testing
Although no evidence of harmful fetal effects: Potential effects of energy deposition, resultant tissue
heating in the fetus, and potential effects of acoustic noise.
Gadolinium FDA Category C
What is the expert consensus?
Suggested Reading
Brown HL. Trauma in Pregnancy. Obstet Gynecol 2009;114(1):147-160
Mirza et al. Trauma in Pregnancy: A Systematic Approach. Am J Perinatol 2010;27:579-586
Oxford CM and Ludmire J. Trauma in Pregnancy. Clin ObstetGynecol 2009;52(4):611-629
Murphy NJ and Quinlan JD. Trauma in Pregnancy: Assessment, Management, and Prevention. Am Fam Physician 2014;90(10):717-724.
Kilpatrick, SJ. Trauma in Pregnancy. In: UpToDate Post TW (Ed), UpToDate, Waltham, MA. Accessed on February 12, 2016.
Expert Opinion and Recommendations
First focus: primary assessment for major trauma Airway, Breathing, Circulation
Transfer to major trauma center if appropriate
Adequate IV access
Then complete secondary assessment Labs if major trauma:
CBC, CMP, KB, UA, urine toxicology, blood type and screen, crossmatch, PT/PTT, fibrinogen
Recommendations vary by source
Remember left lateral tilt (25 to 30 degrees)
Thorough physical examination
Expert Opinion and Recommendations
Initiate fetal monitoring in viable fetus as soon as patient is stabilized and continue for at least 4h (4 to 6h)
80% of abruptions will occur in first 4-6h, remaining abruptions usually detected within 24h
No adverse outcomes noted directly related to trauma when monitoring is normal and there are no early warning signs (vaginal bleeding, abdominal pain) and less than 6 contractions per hour (1 every 10 minutes)
Monitor for 24h if concerning symptoms or if frequent contractions (>1 every 10 minutes), regardless of perceived intensity of trauma
Non-reassuring FHR, vaginal bleeding, uterine tenderness, serious maternal injury, or positive KB warrant additional monitoring
20% risk of abruption if more frequent contractions
Expert Opinion and Recommendations
Although abnormal monitoring and early warning signs of vaginal bleeding, contractions, uterine or abdominal tenderness, and positive KB don’t necessarily predict PTL or adverse pregnancy outcome they do warrant increased surveillance and attention
Consider: Abnormal FHR not seen until 30% abruption
Fetal demise occurs at about 50% abruption
Sinusoidal FHR pattern suggestive of fetal anemia
Recognize concerning FHR pattern early
Expert Opinion and Recommendations
Perform Ultrasound Imaging for fetal assessment and gestational age
Perform other imaging and testing as indicated CT, XRay, MRI
Open peritoneal lavage
Give Rhogam if indicated 300mcg dose will neutralize 15ml fetal RBCs
Give antenatal corticosteroids if anticipate possibility of PTD
Exploratory laparotomy doesn’t necessarily require concurrent cesarean delivery
Expert Opinion and Recommendations
If patient is in preterm labor: Tocolysis not contraindicated
Avoid beta-mimetic agents because the associated tachycardia can mask signs of concealed hemorrhage and maternal clinical deterioration
Management with tocolytic agents, antibiotics, and antenatal corticosteroids
DVT prophylaxis
Expert Opinion and Recommendations
Thorough and detailed documentation on initial and subsequent exam findings
Carefully and accurately document because records likely to be revisited if significant maternal or fetal morbidity or mortality
For example, documenting urgent need for C/S within few hours after MVA is likely to be secondary to the MVA
Expert Opinion and Recommendations
Cardiopulmonary Resuscitation At best, CPR only provides 30% of normal cardiac output
CPR is less effective in pregnancy
Decreased maternal chest compliance
Aortocaval compression in supine further complicates CPR
Manually displace uterus to left
Expert Opinion and Recommendations
Perform perimortum C/S if viable gestational age Initiate within 4 minutes, deliver by 5 minutes
IMMEDIATE and DECISIVE decision for perimortum C/S if any hope of intact neonate
Don’t waste time going to the OR, cut at bedside with stat knife
Consider vertical laparotomy and classical uterine incision, transecting placenta if necessary for rapidity of delivery
Optimal fetal survival if delivery by 5 minutes
Intact Fetal survival becomes unlikely if more than 15-20 minutes have passed since the loss of maternal vital signs
67% intact survival if delivered in less than 15 minutes
Need to evacuate significantly gravid uterus for effective CPR
Expert Opinion and Recommendations
Aggressive volume replacement at 3:1 ratio to blood loss
Consider DIC and dilutionial coagulopathy with need for aggressive blood and factor repletion
Coagulopathy also seen with hypothermia
Maternal symptoms after 20-25% EBL (1.2-1.5L) Tachycardia, vasoconstriction, hypotension with above
Above plus tissue hypoxia, oliguria, hypotension with 25-35% EBL (1.5-2L)
Above plus hemorrhagic shock, altered consciousness, anuria, DIC with >30% EBL (>2L)
Expert Opinion and Recommendations
Provide education on seatbelt use
Lap belt should be placed low under the protruding abdomen
Shoulder belt should be displaced off the side of the uterus
If the lap belt is placed over the dome of the uterus, the increased pressure is transmitted to the uterus and increases the risk of significant injury
Expert Opinion and Recommendations
Screen for Intimate Partner Violence More than 1 out of 3 women have experienced IPV in lifetime but
true prevalence unknown
May be increased during pregnancy with increased severity of violence
Associated with poor pregnancy outcomes:
Poor weight gain, infection, anemia, tobacco use, stillbirth, pelvic fracture, placental abruption, fetal injury, PTD, LBW
Can include:
Physical injury, psychological abuse, sexual assault, progressive isolation, stalking, deprivation, intimidation, reproductive coercion
References
Brown HL. Trauma in Pregnancy. Obstet Gynecol 2009;114(1):147-160
Oxford CM and Ludmire J. Trauma in Pregnancy. Clin Obstet Gynecol 2009;52(4):611-629
Murphy NJ and Quinlan JD. Trauma in Pregnancy: Assessment, Management, and Prevention. Am Fam Physician 2014;90(10):717-724.
Schiff MA. Pregnancy outcomes following hospitalisation for a fall in Washington State from 1987 to 2004. BJOG 2008;115:1648-1654
Kady, D et al. Trauma during pregnancy: An analysis of fetal outcomes in a large population. Am J Obstet Gynecol 2004;190:1661-1668
Schiff MA et al. The effect of Air Bags on Pregnancy outcomes in Washington State. ObstetGynecol 2010;115(1):85-92
Vivian-Taylor J et al. Motor vehicle accidents during pregnancy: a population-based study. BJOG 2012;119:499-503
Raptis et al. Imaging of Trauma in the pregnant patient. RadioGraphics 2014;34:748-763
Mirza et al. Trauma in pregnancy: A systemic approach. Am J Perinatol 2010;27:579-586.
Kilpatrick, SJ. Trauma in Pregnancy. In: UpToDate Post TW (Ed), UpToDate, Waltham, MA. Accessed on February 12, 2016.
Cahill AG et al. Minor trauma in pregnancy-is the evaluation unwarranted? Am J ObstetGynecol 2008;198:208.e1-208.e5
Intimate partner violence. Committee Opinion No. 518. American College of Obstetricians and Gynecologists. Obstet Gynecol 2012;119:412-417
Critical care in pregnancy. Practice Bulletin No. 158. American College of Obstetricians and Gynecologists. Obstet Gynecol 2016;127:e21-28
Guidelines for diagnostic imaging during pregnancy and lactation. Committee Opinion No. 656. American College of Obstetricians and Gynecologists. Obstet Gynecol 2016;127:e75-80
Additional Resources
Recommended reading resources include several trauma assessment and evaluation algorithms
UNC algorithm: http://www.mombaby.org/PDF/TraumaInPregnancy.pdf