old problem – consistent thoughts definition… arbitrary and problematic traditionally: (...
TRANSCRIPT
Arnold W. Cohen, MD,
ChairmanDepartment of
Obstetrics & Gynecology
Albert Einstein Medical Center
Professor of Ob/GynJefferson Medical
CollegePhiladelphia, PA.
Old Problem – Consistent Thoughts
Definition…Arbitrary and problematicTraditionally: (Baskett, 1999) EBL >=500 cc after vaginal delivery EBL >=1000 cc after a cesarean section
Excessive blood loss that makes the patient symptomatic (ie lightheadedness, vertigo, syncope) +/-signs of hypovolemia (ie hypotension, tachycardia, or oliguria)
Incidence…Affects 5-15% of women giving birthTwo categories: Early (primary) hemorrhage: occurs within the first
24 hours postpartum Late (secondary) hemorrhage: occurs after 24 hours
postpartum
Be Prepared…Risk Factors:
MacrosomiaLabor induction and augmentationProlonged second stage Chorioamnionitis Magnesium sulfate usePrevious PPH
(Jackson, 2001)
Risk Factor OR CIRetained placenta 3.5 2.1-5.8Failure to progress during the second stage of labor
3.4 2.4-4.7
Placenta accreta 3.3 1.7-6.4Lacerations 2.4 2.0-2.8Instrumental delivery 2.3 1.6-3.4Large for gestational age (LGA) newborn
1.9 1.6-2.4
Hypertensive disorders 1.7 1.2-2.1Induction of labor 1.4 1.1-1.7Augmentation of labor with oxytocin 1.4 1.2-1.7
Sheiner et al 2005
Be Prepared…
PreventionActive management of the 3rd stage of labor
uterotonic administration (preferably oxytocin) immediately upon delivery of the baby (or shoulders)
early cord clamping and cutting gentle cord traction with uterine
countertraction when the uterus is well contracted (ie, Brandt-Andrews maneuver).
Benefits of Active Management Vs Physiological management
Outcome Ctrl rate RR CI
PPH > 500ml 14 % 0.38 0.32-0.46
PPH > 1000ml 2.6% 0.33 0.21-0.51
Hgb < 9 g/dl 6.1% 0.4 0.29-0.55
Blood transfusions 2.3% 0.44 0.22-0.53
Therapeutic Uteretonics
17% 0.2 0.17-0.25
Prendiville, 2000
Etiologies (4T’s)…Tone: uterine atony (80%)Tissue: retained placental tissueTrauma: uterine, cervical or vaginal lacerations Thrombin: dilutional coagulopathy, consumptive
coagulopathy and coagulation disorders
Clinical findings in Ob PPH…Blood Loss SBP Symptoms
and signsDegree of shock
500-1000 mL (10-15%)
Normal Palpitations, tachycardia, dizziness
Compensated
1000-1500 mL (15-25%)
Slight fall (80-100 mm Hg)
Weakness, tachycardia, sweating
Mild
1500-2000 mL(25-35%)
Moderate fall (70-80 mm Hg)
Restlessness, pallor, oliguria
Moderate
2000-3000 mL (35-50%)
Marked fall (50-70 mm Hg)
Collapse, air hunger, anuria
Severe
Two important facts…1. Caregivers consistently underestimate visible
blood loss by as much as 50%. The volume of any clotted blood represents half of the blood volume required to form the clots.
2. Most women giving birth are healthy and compensate for blood loss very well. This, combined with the fact that the most common birthing position is some variant of semirecumbent with the legs elevated, means that symptoms of hypovolemia may not develop until a large volume of blood has been lost
100 ml peripad
250 ml chux
350 ml chux 500 ml chux
18x18 laps: 25 ml approx 50%; 50 ml approx 75%; 75 ml entire surface; 100 ml saturated and dripping
25 ml 50 ml 75 ml 100 ml
A saturated 4x4 12-ply sponge = 5 ml
50 ml peripad25 ml peripad
100 ml chux
Dry
Other methods of quantification:•Weight•Direct Measurement
Treatment…Two major components: Resuscitation and management of obstetric hemorrhage and, possibly, hypovolemic shock
Identification and management of the underlying cause(s) of the hemorrhage
Philadelphia Delivery Centers
Organize the team…Call for help ( Attending, nurse ,
anesthesiologist)Designate a nurse to record vital signs, urine
output, fluids and drugs administeredAssess the vital signs every 5-10min
Resuscitation…Administer 5-7L/min of Oxygen by face maskPlace 2 large bore IV linesInitial Blood work:
Type and cross match, CBC, PT/PTT/INR, Fib, FSP, Cr, S-8
Fluid Resusciation with NS or LR to maintain BP at 90 mm/Hg
Blood transfusion using Massive Transfusion Protocol
Correct coagulopathy if present
Consider activation of a MT protocol when patient actively bleeding and any of the following:
Systolic blood pressure < 90 mmHg Ph < 7.1 Base deficit > 6 meq/L Temperature below 34°C INR > 2.0 Platelet count < 50,000/mm³ Once activated, the blood bank will send 6 units of PRBC, 6
units of FFP, 6 units of platelets, and 10 units of cryoprecipitate. After this, if the patient remains bleeding (the protocol has not being inactivated), 6 more units of PRBC and FFP will be prepared along with 20 units of cryoprecipitate. The latter product is given in order to elevate the fibrinogen level since the next step of the protocol is to
Recombinant Activated factor VII administer. At any point, if the patient’s hemorrhage stops, the blood
bank should be notified so that the protocol can be terminated.
If bleeding persists, the sequence is started again.
Massive Transfusion Protocol“1:1:1”
Blood Products
General considerations Keep the platelet count > 50,000. If less than
that, administer 10-12 units initiallyIf surgical intervention is necessary, maintain
Plt count > 80-100,000.Cryoprecipate may be used along with FFP
for fibrinogen levels <100, give in 6-12 unit doses
Blood Component TherapyProduct Vol Contents EffectPRBCs 240 RBC, WBC,
plasmaIncrease hematocrit 3 percentage points, hemoglobin by 1 g/dL
Platelets 50 Platelets, RBC, WBC, plasma
Increase platelet count 5,000– 10,000/mm3 per unit
FFP 250 Fibrinogen, antithrombin III, factors V and VIII
Increase fibrinogen by 10 mg/dL
Cryoprecipitate
40 Fibrinogen, factors VIII and XIII, von Willebrand factor
Increase fibrinogen by 10 mg/dL
Targets after Transfusion…Fibrinogen > 100mg/dlHematocrit >21%Hemoglobin >7g/dlPlatelet count >50,000PT/PTT <1.5 times control
Response to Resuscitation…Pay attention to pt’s level of consciousnessMonitor BP
Maintain BP around 90 mm/Hg SystolicMonitor RRFrequent auscultation of lung fieldsStart Blood if BP cannot be maintained or
when Bleeding is controlled
Work up…Exam Patient- DR or in OR
Uterine ToneGenital LacerationsPlacentaBleeding Sites
Lab Studies: Type and cross match, CBC, PT/PTT/INR, Fib, FSP, Cr, S-8
Imaging Studies: bedside U/S
Initial Management…Empty bladder Vigorous bimanual Uterine massage Manual exploration of uterine cavity. (Use
U/S to r/o retained placenta)UterontonicsCareful inspection of cervix, vagina, vulva and
perianal area for lacerations and/or hematomas in OR
Consider coagulopathy if no other cause identified
Medical Management…UTEROTONICS…Pitocin: 40 units in 1 liter NS or LR IV
rapid infusion or 10 units IM (Avoid undiluted IV push)
Methergine: 0.2mg IM q2-4hr, max 5 doses (Contraindicated with HTN)
Hemabate: 0.25mg IM or intramyometrial q 20-90min, max 8 doses (Contraindicated with Asthma)
Cytotec: 800-1000mcg PR or SL (not per vagina)
ManagementMonitor CBC, Coagulation studies, ABGMonitor pulse oximetryMonitor Urine output with indwelling
catheterCorrect coagulopathy
FFP- preferred because of volumeCryoprecipitate
If PPH hemorrhage continues after uterotonics…
Shift to ORExam under anesthesia: carefully re-inspect
the cervix, vagina, vulva and perianal areas for lacerations and /or hematomas
Perform D&E to make sure that there is no retained placental tissue (“Banjo” curette)
Packing and Tamponade…If PPH still continues….Packing: 4 inch gauze pack into uterus
using a sponge stick. If thrombin available, soak gauze with 5,000 units thrombin in 5cc sterile saline
SOS Bakri Tamponade Balloon: Insert balloon, instill 300-500 cc saline
Foley catheters: if Bakri balloon unavailable. Insert one or more bulbs, instilled with 60-80cc of NSS
Intractable PPH at vaginal delivery
Uterine Artery EmbolizationNo coagulopathyHemodynamically stable to go to Radiology suiteInterventional Radiologist available
UAE: special considerations…If patient is relatively stable, not coagulopathic and an intervention radiologist is available; consider arterial embolization before proceeding to exploratory laprotomy. Temporizing measures like packing and SOS Bakri balloon tamponade can be used in the meanwhile.
Intractable PPH at Vaginal delivery
LaparotomyMake midline vertical abdominal incisionBegin with bilateral uterine art ligation-
Figure of 8’sIf unsuccessful, consider…B-Lynch suture or square compression
sutureVicryl 1
Hpogastric artery ligationHysterctomy (supracervical)
PPH at cesarean deliveryAggressive resuscitationDirect bimanual compressionDirect intramyometrial injection of Hemabate
may be undertakenRetained placenta can be removed under
direct visualizationCompression sutures may be placedLUS can be packed with end in the vagina for
24-30 hrsHypogastric Artery LigationSupracervical Hysterectomy
Post Op care…Continue resuscitationMonitor vital signs and urine outputMonitor vaginal bleedingRepeat labs as indicatedDisposition: ?ICUMonitor for coagulopathyMonitor for complications: anemia, ARDS,
ATN being most common
Documentation…Infusion type and rateMassive Transfusion Protocol (1:1:1)
BloodPlateletsFibrinogen
Medications administeredPatient responseVital signs and urine outputNursing and Physician notes
Management ofPost Partum Hemorrhage
Post Partum Hemorrhage Box
Post Partum Hemorrhage Box
Post Partum Hemorrhage Meds
H.A.E.M.O.S.T.A.S.I.SH ask for helpA Assess (VS, EBL) and resuscitateE Establish etiology, ensure availability of
blood, ecbolics M Massage uterusO Oxytocin/Methergine/Hemabate/CytotecS SShift to ORT Tamponade balloon, uterine packingA Apply compression suturesS Systematic pelvis devascularizationI Interventional radiologist – UAES Subtotal/total abdominal Hysterectomy