Complex Parturient Symposium Abnormal Placentation ......Complex Parturient Symposium Abnormal...
Transcript of Complex Parturient Symposium Abnormal Placentation ......Complex Parturient Symposium Abnormal...
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Complex Parturient SymposiumAbnormal Placentation: Anesthesia
Tel Aviv Sourasky Medical Center, Israel
Carolyn Weiniger MB ChBDivision of Anesthesiology, Critical Care and Pain
@CarolynWeiniger
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Investigator Sponsored Research Medtronic (Boulder, Colorado, USA)Editor of International Journal of Obstetric Anesthesia
No disclosures relevant to this lecture
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Objectives1. Assess patient for suspected placenta accreta risk2. Plan anesthesia according to anesthesia risk3. Plan lines/blood management/invasive radiology/postop care
Tel Aviv Sourasky Medical Center, Israel
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35 years old, G6 P5S/P 3 NVD and 2 prior CD
35/40, planned elective cesarean deliveryKnown placenta previa and highly suspected accreta since week 18
Blood products preparedIV line in place
Known accretaCesarean hysterectomy
Multidisciplinary planning
Optimize:Lines; Blood; Anesthesia choice
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Pre-delivery diagnosis of placenta accretaIrregular or absent “clear space” behind placenta
Normal Absent
NPV 97-100% PPV 15-50%
Courtesy of Deirdre Lyell, Stanford
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
Antenatally-suspected placenta accreta requires preparations for major hemorrhage. How to direct massive hemorrhage preparations to those most likely to need it?
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Tel Aviv Sourasky Medical Center, Israel
N=92Placenta previa = yes or noPrior cesarean delivery numberUltrasound signs of accreta – low or high
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Our patient PreviaSP 2 CDHigh suspicion ultrasound
Anesthesia and blood Management for high risk patient
Tel Aviv Sourasky Medical Center, Israel
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For a healthy woman undergoing elective cesarean delivery for placenta percreta, which anesthesia mode are you most likely to use?A - General anesthesiaB - Neuraxial anesthesiaC - Depends on her airway examinationD - Depends on the surgical plan eg uterine preservation or hysterectomyE - Other/combination epidural-general
Tel Aviv Sourasky Medical Center, Israel
Question: Mode of Anesthesia
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Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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GA n = 7 NA n = 122Mallampati 3 or 4 2 (29%) 18 (15%)Bleeding as indication for CD 2 (29%) 17 (14%)Low Suspicion of invasion 1 (14%) 12 (10%)Attempted placental removal 3 (43%) 73 (60%)No invasion (pathology) 0 39 (35%)Invasion (pathology) 7 (100%) 74 (66%)Hysterectomy 7 (100%) 76 (62%)
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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N=110 Invasive Placentation N = 58
No invasive placentation N = 52
p value
US SuspicionLow suspicionHigh suspicion
11 (19%)47 (81%)
30 (63%)17 (36%) <0.0001
Placenta Previa 51 (88%) 36 (69%) 0.016Prior CD >2 34 (67%) 17 (33%) 0.008General Anesthesia(no conversions)
52 (96%) 32 (65%) <0.0001
Hysterectomy Performed
51 (88%) 2 (4%) <0.0001
PRBC>4 units 33 (57%) 2 (4%) <0.0001
Unpublished Data
Suspicion of Abnormal Placentation at a Single Center, 2003-2016All patients had suspected accreta (US signs/prior CD/placenta previa)
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Placenta previa
Low suspicion placenta accreta
High suspicion placenta accreta
What anesthesia mode do you use? n(%)GeneralCSESpinal
8 (30.8%)1 (3.8%)17 (65.4%)
18 (69.2%)2 (7.7%)6 (23.1%)
25 (96.2%)01 (4.3%)
How many IVs are placed pre-operatively? n(%)123
8 (30.8%)18 (69.2%)0
1 (4.3%)19 (82.6%)3 (13.0%)
016 (66.6%)7 (30.4%)
Tel Aviv Sourasky Medical Center, Israel
Acta Anesth Scand 2016
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Tel Aviv Sourasky Medical Center, Israel
The All L&D group: more likely to use neuraxial even for high risk women ? Robust staff? Logistics? Experience
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Question: Cell SaverDo you use cell saver for invasive placentation casesA - yes for all casesB - yes when uterine preservation is planned but not for planned cesarean hysterectomyC - no we usually don’t use it/don’t have one available
Tel Aviv Sourasky Medical Center, Israel
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SafeACOG and NICE recommend its useNeeds specialized techniciansSave allogeneic blood transfusion
Tel Aviv Sourasky Medical Center, Israel
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We defined increased risk of haemorrhage as any emergency cesarean or as an elective cesarean for any reason other than maternal preference or known breech presentation,
Tel Aviv Sourasky Medical Center, Israel
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Placenta previa Low suspicion placenta accreta
High suspicion placenta accreta
How many IVs are placed pre-operatively? n(%)
123
8 (30.8%)18 (69.2%)0
1 (4.3%)19 (82.6%)3 (13.0%)
016 (66.6%)7 (30.4%)
Rapid infusor device used n(%) 8 (34.8%) 12 (46.2%) 17 (65.4%)
AL placed n(%) 2 (7.7%) 15 (57.7%) 21 (80.8%)
Central venous line placed n(%) 0 2 (7.7%) 4 (15.4%)Cell saver n(%) 1 (3.8%) 5 (19.2%) 5 (19.2%)
Acta Anesth Scand 2016
Tel Aviv Sourasky Medical Center, Israel
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Appears that balloon occlusion –useful adjuvant for peripartum cesarean hysterectomy or conservative management of placenta accreta
Tel Aviv Sourasky Medical Center, Israel
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6 reports using REBOA cases of morbidly adherent placenta 2 studies REBOA was deployed during established hemorrhagic shock at the moment of cesarean delivery. REBOA was deployed primarily by interventional radiologists; however, one study reported a surgeon as the REBOA provider. Promising results. The device should be deployed in the infrarenalaorta and may decrease hemorrhage
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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When a major hemorrhagic risk is identified, general anesthesia can be chosen from the outset to avoid emergency conversions in difficult conditions (professional consensus). Epidural or combined spinal anesthesia are also possible (professional consensus).
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Do you use a viscoelastic test during management of invasive placentation cases:A - yes, I have POC test in the labor wardB - yes I have POC test in the lab/blood bank and the clot is visible on a monitor as it developsC - yes I have POC test and I get the result when the clot is formedD - no I don’t have access to POC
Tel Aviv Sourasky Medical Center, Israel
Question: Point of Care (POC) Testing
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Fixed blood component transfusion ratio in 79% of the units48% using a 1:1 PRBC:FFP ratio35% using a 1:1:1 PRBC:FFP:PLT ratio.
MTP in 95% of units with a PPH protocol and in 90% of units without (95% CI of difference: −7% to 7%).
Cryoprecipitate trigger
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Multidisciplinary approach
Identify resources available eg team member availability, blood products, operating room and ICU bed, threats – percretaTransfer patient?
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Anesthesiologist
Teamwork Communication
ObstetricianThe patient in room 12 is hemorrhaging, you know, the one with the accretaQuick we need to take her to the ORNo time to waste
Sim Healthcare 2012 7:166-170
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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AnesthesiologistThat’s good I know about her difficult airway and obesityAdvocate planIll do a videolaryngoscopy intubation and use ultrasound to get some big lines set upInquiryDid you book a bed in the ICU?
ObstetricianHey, Dr Smith, the lady in room 12 we discussed yesterday with placenta accreta has started to bleedAdvocate planWe need to take her to the OR and do a cesarean hysterectomyInquiryIs there any other information you need? We have blood products availableand a technician coming in to run the cell saver
Tel Aviv Sourasky Medical Center, Israel
Anesthesia mode Cell saver Angiography Blood management
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Tel Aviv Sourasky Medical Center, Israel
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In developed countries, accreta is the most common reason for cesarean hysterectomy
Silver RM: Center of Excellence of Placenta Accreta. AJOG
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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35 years oldG2 P1
S/P 1 CD for breech Planned 37/40 Elective cesarean delivery
Presentation at 32/40Massive antepartum hemorrhage
Unknown or suspected accreta
Massive hemorrhage
GA; Lines; O-negBlood
REBOA
Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Tel Aviv Sourasky Medical Center, Israel
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Future Directions
TeamworkHigh and low fidelity training for obstetric emergencies
Hybrid Operating Suite
Tel Aviv Sourasky Medical Center, Israel
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My Take-HomesTalk PlanAnticipateRe-evaluate
@CarolynWeiniger
[email protected] Aviv Sourasky Medical Center, Israel