complications of delivery fall 2016 pec · 8/26/2016 1 robin petersen, msn, rn valley medical...

7
8/26/2016 1 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)

Upload: others

Post on 09-Aug-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Complications of Delivery Fall 2016 PEC · 8/26/2016 1 Robin Petersen, MSN, RN Valley Medical Center Slides authored by Kathy O’Connell, MN, RN Perinatal Clinical Nurse Specialist

8/26/2016

1

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)

Page 2: Complications of Delivery Fall 2016 PEC · 8/26/2016 1 Robin Petersen, MSN, RN Valley Medical Center Slides authored by Kathy O’Connell, MN, RN Perinatal Clinical Nurse Specialist

8/26/2016

2

� 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

Page 3: Complications of Delivery Fall 2016 PEC · 8/26/2016 1 Robin Petersen, MSN, RN Valley Medical Center Slides authored by Kathy O’Connell, MN, RN Perinatal Clinical Nurse Specialist

8/26/2016

3

� 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

Page 4: Complications of Delivery Fall 2016 PEC · 8/26/2016 1 Robin Petersen, MSN, RN Valley Medical Center Slides authored by Kathy O’Connell, MN, RN Perinatal Clinical Nurse Specialist

8/26/2016

4

� 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

Page 5: Complications of Delivery Fall 2016 PEC · 8/26/2016 1 Robin Petersen, MSN, RN Valley Medical Center Slides authored by Kathy O’Connell, MN, RN Perinatal Clinical Nurse Specialist

8/26/2016

5

� 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

Page 6: Complications of Delivery Fall 2016 PEC · 8/26/2016 1 Robin Petersen, MSN, RN Valley Medical Center Slides authored by Kathy O’Connell, MN, RN Perinatal Clinical Nurse Specialist

8/26/2016

6

� 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

Page 7: Complications of Delivery Fall 2016 PEC · 8/26/2016 1 Robin Petersen, MSN, RN Valley Medical Center Slides authored by Kathy O’Connell, MN, RN Perinatal Clinical Nurse Specialist

8/26/2016

7

� 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.