complications of delivery fall 2016 pec · 8/26/2016 1 robin petersen, msn, rn valley medical...
TRANSCRIPT
8/26/2016
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Robin Petersen, MSN, RN
Valley Medical Center
Slides authored by Kathy O’Connell, MN, RN
Perinatal Clinical Nurse Specialist
University of Washington Medical Center
� Describe nursing care for patients
experiencing retained placenta, uterine
inversion, and umbilical cord prolapse
� Describe the pathophysiology and nursing
care for selected bleeding complications,
including: abruptio placenta, placenta
previa, vasa previa, and ruptured uterus.
� Responsible for ~30% of maternal deaths
� Antenatal etiology
� Placental abruption
� Placenta previa
� Placenta accreta
� Physiology of pregnancy
� Increased blood volume
� Decreased blood pressure
� Decreased peripheral vascular resistance
� Increased cardiac output
� Pregnant woman can lose approximately 35% of
their blood volume before vital signs affected
� Definition: separation of placenta from the
site of implantation prior to delivery
� Partial vs. Complete
� Apparent vs. Concealed
� Incidence� 1980’s = 1:150-225
� 1992-1994 = 12% of 40,000 deliveries (Parkland
Hospital study)
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� Initiated by hemorrhage into decidua basalis
� Splitting of decidua with adherent piece left
on the myometrium
� Decidual hematoma
� Incidence
increases with age
�Higher in women
of greater parity
�More common in
African American
or Latinas
�Hypertension
�Preterm PROM
�Maternal trauma
�Cigarette smoking
�Cocaine abuse
�Multiple pregnancy
�Assisted
reproductive
therapy (ART)
�Stabbing pain
�Uterine tenderness
or back pain
�Dark red bleeding
�Uterine rigidity
�Continuous
contractions
� Increased fundal
size
�Fetal distress
�Shock
�Bedrest
�Vital signs
�NST
�Ultrasound
�Assess bleeding
�Labs
�Prep for c-section
�Delivery and
management of
blood loss
�Fear and grief
counseling
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� Definition: Placenta located over or very
near the internal cervical os
� Total: internal os completely covered
� Partial: internal os partially covered
� Marginal: edge of placenta is at the margin of the
internal os
� Low-lying: placenta is implanted in the lower
uterine segment
� Estimated 1% of pregnancies
� Contradictory statistics
� Recent study shows more frequent following
c-section
� Zygote implants very low in uterine cavity
� Symptoms present in 2nd or 3rd trimester
� Multiparity
� Advancing maternal age
� Previous induced or spontaneous abortion
� Smoking
� May be associated with placenta accreta or
increta
� Painless uterine bleeding
� Soft, non-tender uterus
� Malpresentation
� Bedrest
� Monitor vital signs
� Assess bleeding
� No vaginal exams
� Prepare for c-section
� Grief and fear counseling
� If home on bedrest, patient teaching includes
no vaginal penetration
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� Associated with velamentous insertion
� Umbilical cord implanted into membranes, rather
than into the placenta
� Fetal vessels in the membranes cross the
internal os and occupy a position ahead of
the presenting part.
� No Wharton’s jelly surrounding the umbilical vein
and arteries
� Can occasionally be felt on vaginal exam
� ROM in these patients can cause rupture of
fetal vessels
� Succenturiate-lobed placenta
� Bilobed placenta
� Placenta previa
� In vitrofertilization
� Multiple gestation
� Fetal anomaly
� Painless vaginal bleeding
� Sudden appearance of bright red blood at
spontaneous or artificial rupture of membranes
AND
� Abnormal or indeterminate fetal heart rate
tracing
� Prep for immediate c-section
� Neonatology and NICU team present at
delivery
� Anticipate and prepare transfusion of infant
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� Remember:
� At term, blood flows through uterus at
600mL/min.
� Placental separation normally occurs within 10
minutes of delivery
� If no placental separation within 30 minutes,
manual removal may be indicated
� If that doesn’t work…. suspect an abnormal placental
adherence
� Accreta
� Placenta attached directory to myometrium
(78%)
� Increta
� Placenta invates the myometrium (17%)
� Percreta
� Placenta penetrates the myometrium
� Notify blood bank for type and crossmatch
� Weigh pads for quantitative measurements of
blood loss
� Increase IV fluids
� Administer oxygen, monitor VS, lab work
� Maintain empty bladder, monitor intake and
output
� Attend mother
� Maintain empty bladder, insert indwelling
catheter
� Monitor I&O
� Attend mother while provider attempts
manual removal
� If manual removal unsuccessful, prepare
patient for surgery
� The greater the degree of the accreta, the
greater the risk for hysterectomy
� Turning inside out of uterus
� Current incidence: 1 in 2000
� Classification
� Puerpural: associated with abortion, miscarriage,
or labor
� Nonpuerpural: non-pregnant uterus
� Acute: immediately or within 24 hours of delivery
� Subacute: diagnosis over 24 hours but less than 4
weeks after delivery
� Chronic: present for 4 or more weeks
� First
� Corpus or wall extends to the cervix, not beyond
the cervical ring
� Second
� Protrusion or corpus or wall through cervical ring
but not to perineum
� Third
� Inverted fundus extends to perineum
� Fourth
� Vagina inverted along with uterus
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� Placenta accreta
� Short cord
� Congenital weakness or anomaly of uterine
wall or cervix
� Tumors
� Manual removal of placenta
� Increased intra-abdominal pressure
� Mismanagement of 3rd stage of labor
� PREVENTION
� Guard the uterus when performing fundal
massage
� Measure blood loss accurately
� Continuous monitor of VS
� Provide aggressive fluid replacement
� Watch for hemorrhage, hypovolema, shock
� Administer analgesics or tocolytics as needed
� Place indwelling catheter
� Provide pain relief
� Blood replacement as indicated
� Notify anesthesia
� Following manual replacement, fundal
massage performed very carefully
� Continue IV fluids and oxytocin
� Surgical replacement if manual replacement
fails
� Antibiotic prophylaxis
� Most people grossly underestimate blood loss
� Use formal methods to assess blood loss
� Weigh blood soaked material on gram scale
� Subtract known dry weight of materials
� 1 gram = 1 mL blood
� Simulation training for delivery complications
� Displacement of umbilical cord to a position
at, or below, the fetal presenting part
� Classification
� Occult: hidden or not visible at any time during
labor or not ROM
� Complete: cord seen or palpated ahead of
presenting part
� Incidence
� 1:160 to 1:174 deliveries
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� Polyhydramnios
� Multiple gestation
� Ruptured membranes
� Transverse or breech presentation
� Low lying placenta
� Fetal presenting part not engaged
� Premature delivery
� Small fetus
� Visualize cord outside vulva
� Feeling cord during vaginal exam
� Ultrasound
� Bradycardia on EFM
� Non-reassuring fetal status following AROM
� Call for emergency assistance and notify
provider
� Administer oxygen
� Increase IV fluids
� Stop any labor induction or augmentation
agents
� Patient in Trendelenberg or knee-chest
� Perform continuous vaginal exam
� Avoid trauma to cord
� Prepare for emergent c-section
� Keep mother and family informed throughout
emergency
� Be prepared for neonatal resuscitation
�Simpson, K. and Creehan, P. (2014).
Perinatal Nursing. 4th ed. Lippincott:
Philadelphia, PA.
�American Academy of Pediatrics and
American College of Obstetricians and
Gynecologists. (2012). Guidelines for
perinatal care. 7th ed.