CPR in Pregnancy: Left Uterine Displacement Technique

In maternal cardiac arrest, unique causes beyond standard 5H/5T include the B-U-C-H-O-P-S mnemonic: Bleeding/DIC, Uterine (anatomical abnormalities), Cardiac (myocardial infarction, pericardial tamponade, cardiomyopathy), Hypertension (preeclampsia/eclampsia), Other (standard 5H/5T), Placental (abruption, previa), Sepsis. Management differs from adult cardiac arrest: defibrillation should not be withheld, airway management requires experienced operator due to difficult intubation, IV access should be placed above diaphragm (as pregnancy displaces inferior vena cava), left uterine displacement during CPR improves venous return, magnesium sulfate should be stopped and calcium gluconate given if used, and if resuscitation fails within 5 minutes, emergency cesarean delivery should be planned to save fetus.

According to the ABCDE mnemonic, etiologies of maternal cardiac arrest include: Anesthesia complications (catheter issues, aspiration), Cardiac causes (myocardial infarction, cardiomyopathy), Drugs (magnesium sulfate, tocolytics), Embolism (amniotic fluid, venous thromboembolism), Infections (sepsis), and other causes (hypertension, metabolic disorders). A Canadian study of 3.5 million patients found abruptio placentae as the primary obstetric cause.

This comprehensive section covers the complete management of cardiac arrest in obstetric patients. Key topics include: definitions of maternal collapse, cardiac arrest, and maternal death; epidemiology showing 1 per 12,000-16,000 births prevalence and 16-24% mortality in the US; detailed physiological changes including cardiovascular (decreased vascular resistances, hyperdynamic state), respiratory (decreased reserve volumes, upper airway edema), digestive (decreased motility, aspiration risk), and metabolic changes (decreased CO2 and bicarbonate). The ACUTE mnemonic for etiologies is presented: A (Anesthetics, Airway complications, Accidents/Trauma), B (Bleeding/Hemorrhage - the four T's), C (Cardiac causes including MI from coronary dissection, aortic dissection, peripartum cardiomyopathy), D (Drug-induced including magnesium sulfate, anaphylaxis, uterotronics), E (Embolism including amniotic fluid embolism), F (Fever/Infection), G (General causes), H (Hypertensive disorders). Pharmacological management covers crystalloid boluses, epinephrine, amiodarone, atropine, calcium, magnesium sulfate, and intralipid. Initial assessment requires suspecting pregnancy in all patients of reproductive age, checking pulse and breathing, and activating the code team. Uterine displacement to the left is performed by palpating the fundus at the umbilical scar level. Chest compressions follow the same technique as non-obstetric patients. Intubation is recommended for hypoxemic conditions with a videolaryngoscope or small-bore tube. Anatomical studies confirm the ventricles remain in the same position for compressions. The perimortem cesarean section, based on Dr. Catz's 1986 study, should be performed after 4 minutes for fetuses beyond 20 weeks gestation, improving hemodynamics and reducing oxygen demand. Outcomes show 54% survival within 0-5 minutes, 71% healthy, 98% good neurological outcomes.

The AHA provides an etiology mnemonic ABCDEFGH for identifying causes of cardiac arrest in pregnant patients. This stands for: A - Amniotic fluid embolism, B - Blood loss/hemorrhage, C - Cardiac pathology, D - Disseminated intravascular coagulation, E - Eclampsia, F - Fetal demise, G - Pulmonary embolism, H - Hypovolemia. This systematic approach helps healthcare providers quickly identify potential underlying causes.

Maternal cardiac arrest requires specialized emergency response training because standard CPR protocols are ineffective due to physiological changes during pregnancy, such as uterine compression of the aorta and vena cava; effective resuscitation requires left uterine displacement to increase cardiac output by approximately 25% and emergency cesarean delivery within 4 minutes of cardiac arrest to decompress the uterus and enable auto-transfusion of about one liter of blood.

This segment covers complete neonatal resuscitation and postpartum care: newborn assessment (breathing, heart rate 100 bpm, oxygen saturation), VTP technique with 20-30 breaths/minute, airway clearance with repeated suctioning, systematic monitoring every 30 seconds, escalation to chest compressions and epinephrine if heart rate remains below 60 bpm, and postpartum care including placental completeness check, uterine massage, hemorrhage management, and family education on contraception.

Postpartum management includes uterine massage and oxytocin administration to prevent hemorrhage, especially critical in HELLP syndrome with low platelets. Platelet transfusion and tranexamic acid may be needed. Neonatal assessment uses the Apgar score evaluating color, heart rate, reflex irritability, muscle tone, and respiration. A score of 5 at 5 minutes in a baby born during maternal cardiac arrest indicates excellent prognosis. PEA (pulseless electrical activity) requires continued resuscitation.

Shock management in neonates involves recognizing signs: mottled skin, poor perfusion, tachycardia or bradycardia, and poor response to maximal efforts. Treatment includes IV fluid bolus (10 mL/kg of 0.9% NaCl over 10 minutes) and inotropes (vasopressin, norepinephrine) if needed. Post-resuscitation stabilization includes: Vitamin K injection (1 mg IM in left anterolateral thigh), eye antibiotic ointment, early breastfeeding initiation, hypoglycemia monitoring (target 50-100 mg/dL), temperature maintenance (36.5-37.5°C), patent airway maintenance, blood pressure monitoring, and emotional support for mother.

This segment covers post-resuscitation care for postpartum hemorrhage, including ICU transfer, continuous monitoring, urine output assessment, and ongoing evaluation of the 4 Ts. The instructor emphasizes that the patient may rebleed and requires ongoing assessment. The segment also covers the importance of knowing medication doses in life-threatening emergencies and the need for specialist consultation for continued management.

This section covers critical postpartum and emergency newborn care when specialized help is unavailable. For cord clamping: measure 10 cm from baby's stomach to cord and tie, then measure 15 cm and tie again, cutting between ties with sterilized scissors. Monitor placenta delivery (up to 30 minutes) without pulling the cord; use clockwise abdominal massage to stimulate release. Watch for postpartum hemorrhage (>0.5L blood loss) and shock signs (low BP, confusion, pallor); elevate legs and lower head if shock occurs. For non-responsive newborns: stimulate by rubbing back and tapping feet; if no response after 30 seconds, perform mouth-to-mouth ventilation (30 breaths/minute) and chest compressions (1/3 chest depth, 90 compressions/minute) with 3 compressions per ventilation.

Maternal mortality remains a critical global health challenge, with 813 women dying daily from pregnancy-related complications. Mexico reports 35.4 deaths per 100,000 live births, where hypertensive disorders cause 40% of maternal deaths and hemorrhage accounts for 20%. Maternal mortality rates serve as key indicators of national development, reflecting systemic issues including inadequate prenatal care, limited healthcare access, and socioeconomic disparities. Triage obstétrico addresses this crisis through a rapid assessment process functioning as an action rather than merely an area, operating 24/7 with accessible physical spaces, trained personnel (nurses, midwives, physicians), and essential equipment including blood pressure monitors, pulse oximeters, stethoscopes, thermometers, and glucose meters. The system uses three-color classification (red, yellow, green) to prioritize patient care based on urgency, with red code triggered by altered consciousness, visible bleeding, convulsions, abnormal respirations, or cyanosis, and specific vital sign thresholds including hypertension >160/110 mmHg, hypotension <89/50 mmHg, heart rate <45 or >125 bpm, respiratory rate <16 or >24 breaths/minute, and temperature <35°C or >39°C.

Emergency obstetric care requires rapid assessment, diagnosis, and intervention when maternal or fetal complications arise. This scenario demonstrates the complete workflow: (1) Continuous fetal monitoring (heart rate 130-140 bpm, contractions every 17 minutes), (2) Recognizing pre-eclampsia (BP 180/100 mmHg) and its risks, (3) Identifying transverse fetal lie preventing vaginal delivery, (4) Attempting external cephalic version, (5) Executing emergency cesarean section with proper preparation (blood products, specialists), and (6) Managing complications like placental abruption and hemorrhage. This illustrates the critical importance of continuous monitoring, rapid diagnosis, and coordinated emergency response in obstetric emergencies.

Effective obstetric emergency response requires rapid recognition of complications and seamless interdisciplinary collaboration. The video demonstrates how medical staff identify preterm labor, assess gestational age accurately, and coordinate with obstetric specialists. Clear communication among healthcare providers ensures timely intervention and appropriate resource allocation during high-stakes maternal emergencies.

This comprehensive segment presents multiple interconnected cases spanning obstetric emergencies, ethical conflicts, and crisis intervention. The narrative begins with a C-section emergency where a father attempts to take his newborn, requiring security intervention and demonstrating how childbirth emergencies can escalate into life-threatening situations requiring rapid crisis response. Simultaneously, a separate case involves Barbara Duncan, a 25-year-old with Down syndrome refusing life-saving heart surgery, highlighting tensions between parental authority, medical recommendations, and patient autonomy. The segment then transitions to a hospital responding to a toxic spill causing mass casualties, demonstrating comprehensive emergency response protocols including triage systems, resource allocation challenges, and the ethical dilemma of allocating limited epinephrine doses during a code blue. The cyanide poisoning diagnosis and treatment with hydroxycobalamine demonstrate the importance of rapid identification of toxic exposures. The narrative illustrates how healthcare providers must balance competing ethical obligations: respecting patient autonomy while ensuring life-saving interventions occur, managing family conflicts during emergencies, and navigating the emotional intensity of childbirth alongside moral distress over treatment decisions. The segment demonstrates that even in crisis situations, ethical frameworks must guide decision-making alongside clinical expertise.

Obstetric emergencies require rapid assessment of competing risks to mother and fetus. When a patient presents with placental abruption causing hemorrhage, medical teams must weigh immediate delivery against premature birth risks against delayed intervention risking maternal mortality. This scenario demonstrates how medical crises force healthcare providers to confront difficult ethical questions about risk tolerance, resource allocation, and the limits of medical intervention. The video shows how these situations test both clinical expertise and moral fortitude, requiring practitioners to balance evidence-based medicine with compassionate communication while managing their own emotional responses to life-and-death scenarios.