Simon Ash Profile picture
Nov 9, 2022 7 tweets 8 min read Read on X
@MariePierreBon2 kicks day 3 off with diagnosis of PPH. She reminds us the OB hemorrhage causes both mortality and severe morbidity (2/3 in France). Not to be ignored, PPH and APH precipitate majority of maternal cardiac arrest. #OBAnes “Too little, too late” kills
#OAA3dc2022 ImageImageImageImage
Factors associated with PPH severity, #OBAnes can impact initial care - prevent “too little too late” cycle. Delay of diagnosis is bad. HOW do we diagnose? 3T’s 3 F’s #OAA3dc2022 ImageImageImageImage
Graduated blood collection bags do NOT reduce rates of severe PPH. Visual aids only useful if no collection bag. Quantitative measurement may have a positive impact on outcomes. #OAA3dc2022 ImageImageImageImage
Colorimetric devices - ? Have promise? #OAA3dc2022 ImageImageImageImage
Shock index 9 or greater = 100% sensitivity, but poor specificity. Also poor correlation between maximal shock index and blood loss. Poor sensitivity for PPH > 1000mL #OAA3dc2022 ImageImage
Biological diagnosis better? Fibrinogen level correlates best with blood loss. Remember Hb is NOT useful. Fibrinogen level <2g/L 99% specificity, POOR sensitivity, for PPH severity. #OAA3dc2022 ImageImageImageImage
Fibrinogen POC is way of future, although the devices may not be there yet? More from Prof Rachel Collis later. Summary slide from @MariePierreBon2 #OAA3dc2022 ImageImage

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More from @OBsleepmerchant

May 9
@SQuashie presents an update on anesthesia for operative delivery. Declarations. Methodology and themes. #OAA24ASM #OBAnes

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Gastric USS. Oral rehydration has benefits over NPO wrt vasopressor use. #siptilsend safe, noting some patients have increased gastric volumes irrespective of starvation status. #OAA24ASM #OBAnes
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@SQuashie continues at a rapid pace. To DPE or not to DPE remains a question - 16min vs 19 min, is that 3 min clinically relevant? Esketamine for supplemental analgesia - >95% had psych effects, read @rjharrison79 editorial. #OAA24ASM #OBAnes
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Read 16 tweets
May 9
@Jamesocarroll presents an Update on Labour and Delivery. Disclosures #OAA24ASM #OBAnes

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How the lecture was put together. Screening. Themes. How to interpret the slides. Very Ostheimer-esque @Jamesocarroll #OAA24ASM #OBAnes


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@Jamesocarroll Clinical practice theme: intrathecal catheters & ADP. Intrathecal catheters: No decrease in PDPH, but reduction in EBP. 10mL intrathecal saline decreased PDPH & need for EBP. Of note, the percentage of epidurals requiring multiple attempts. #OAA24ASM #OBAnes

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Read 17 tweets
May 5
8am-ish in Denver and time for a much anticipated session: PDPH beyond the guidelines. Moderated by Dr Lisa Leffert, featuring @Ropivacaine, @euklaas, @sharonOzynger and @WouterSchievink at #SOAPAM2024 #OBAnes

(HT: @Ropivacaine, bless his heart, he knows I hate missing out)

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Hot off the Press? August 2023! @JAMANetworkOpen with quite an illustrious team including @Ropivacaine @robin_russell1 @KalagaraHari @LimGrapes @claralexlobo @noolslucas @NarouzeMD (please tag others if you have their handles?) #SOAPAM2024 #OBAnes

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Introduction, Methods and the 10 questions. #SOAPAM2024 #OBAnes

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Read 11 tweets
Jun 12, 2023
Next up at #CASAM2023 - fittingly keeping the most important academic session to last: #OBAnes
@ValZaph moderating the Maternal Experience and Outcomes: Improving the care we provide. @DrWesleyEdwards

Bookends the 1st #OBAnes session, on intrapartum pain at cesarean section… twitter.com/i/web/status/1… Image
Dr Christina Lamontagne kicks off the session with: Use of Dexmedetomidine in improving maternal experience and outcomes. Nothing to disclose. Then an important disclosure: All indications discussed are OFF LABEL in Canada. Objectives.
#OBAnes #CASAM2023 ImageImageImageImage
Why does Dr Lamontagne use a lot of dexmedetomidine (not only in #OBAnes mind)? Clinical pharmacology of dexmedetomidine (1): highly selective alpha-2 agonist; sedation WITHOUT amnesia at locus coeruleus. #CASAM2023 ImageImageImage
Read 9 tweets
Jun 11, 2023
Dr Ning Nan Wang introduces @harshamd5 to open the chronic pain session: Perioperative use of opioid in the context of Opioid Epidemic. #CASAM2023 ImageImageImage
The opioid crisis isn’t new - China probably remembers the Opium wars that helped establish a British foothold on the continent. Opioids and OUR crisis. Is what we fear the real crisis? Are opioid-related deaths due to surgical prescriptions? No, mostly due to street fentanyl.… twitter.com/i/web/status/1… ImageImageImage
Opioid use around the time of surgery. Understanding nociception vs pain. Does eliminating opioids during surgery make a difference - no definitive conclusions. #CASAM2023 ImageImageImage
Read 11 tweets
Jun 10, 2023
@DrLucieFilteau introduces @CMA_Docs president @AlikaMD for his keynote address at #CASAM2023 Image
@AlikaMD starts with the state of the 🇨🇦 health system, including a little history. #CASAM2023 ImageImage
The 🇨🇦 health system approach to problems, creating new problems as a result with a dangerous lack of interoperability. #CASAM2023 ImageImageImage
Read 12 tweets

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