The Pregnant Trauma Patient Flashcards
Epidemiology SOGC 2015
1:12 affected
Results of PMB study
Primary Survey: Airway management
^ incidence of difficulty Increase mallampati score Mucosa oedema Reduced frc Reduced compliance Increase resistance Aspiration risk
Primary Survey Airway management
Small sized ETT
RSI with cricoid pressure
NGT if unconscious
Primary Survey : Breathing
Increase O2 consumption
Reduced frc
Primary Survey: breathing management
Supplemental O2: nasal cannula or mask or ETT
ICD placement 2 intercontinental spaces higher than usual ( upward displacement other diaphragm)
Primary Survey: circulatory concerns
Increased CO lower SVR Higher circulation volume Aortocaval compression Placental circulation
Primary Survey : circulation management
X2 large bore IVC 14/16g
Vasopressors reduce placenta circulation
Bicarbonate reduces compensatory hyperventilation use with caution ⚠️
Left lateral tilt or manual displacement if cpr
Rh neg blood in emergency t/f
No inflation of abdominal part of MAST
Primary Survey: GIT concerns
Reduce gastric emptying
NGT if semi/unconscious
Aspirations prophylaxis
Primary Survey: Haematology
Dilution anaemia
Hypercoagulable
Rh status prior to blood T/f orgive rh neg
SOGC 1st guideline
Every female of reproductive age with significant injuries
should be considered pregnant until proven otherwise by a
definitive pregnancy test or ultrasound scan. (III-C
SOGC 2nd guideline
A nasogastric tube should be inserted in a semiconscious or
unconscious injured pregnant woman to prevent aspiration of
acidic gastric content. (III-C)
SOGC 3rd guideline
Oxygen supplementation should be given to maintain maternal
oxygen saturation > 95% to ensure adequate fetal oxygenation.
(II-1B)
SOGC 4th guideline
If needed, a thoracostomy tube should be inserted in an injured
pregnant woman 1 or 2 intercostal spaces higher than usual.
(III-C)
SOGC 2nd guideline
Two large bore (14 to 16 gauge) intravenous lines should be
placed in a seriously injured pregnant woman. (III-C)
Because of their adverse effect on uteroplacental
perfusion, vasopressors in pregnant women
should be used only for intractable hypotension
that is unresponsive to fluid resuscitation. (II-3B)
After mid-pregnancy, the gravid uterus should be
moved off the inferior vena cava to increase
venous return and cardiac output in the acutely
injured pregnant woman. This may be achieved
by manual displacement of the uterus or left
lateral tilt. Care should be taken to secure the
spinal cord when using left lateral tilt. (II-1B)
To avoid rhesus D (Rh) alloimmunization in Rh-
negative mothers, O-negative blood should be
transfused when needed until cross-matched blood
becomes available. (I-A)
The abdominal portion of military anti-shock
trousers should not be inflated on a pregnant woman
because this may reduce placental perfusion. (II-3B)
In addition to the routine blood tests, a pregnant
trauma patient should have a coagulation panel
including fibrinogen. (III-C)
Transfer to healthcare facilities
Transfer or transport to a maternity facility (triage of a
labour and delivery unit) is advocated when injuries are
neither life- nor limb-threatening and the fetus is viable (≥
23 weeks), and to the emergency room when the fetus is
under 23 weeks’ gestational age or considered to be non-
viable. When the injury is major, the patient should be
transferred or transported to the trauma unit or
emergency room, regardless of gestational age. (III-B)
When the severity of injury is undetermined or when the
gestational age is uncertain, the patient should be
evaluated in the trauma unit or emergency room to rule
out major injuries. (III-C)
Buchsbaum criteria
Comorbidities in pregnancy
Hypertension Preeclampsia Eclampsia gestational diabetes HELLP
Amniotic fluid embolism