148 Rheumatic heart disease in pregnancy part 1

Hypothetical Case:

You are called to MFAU to see a woman who has just arrived via RFDS (royal flying doctor service)

She is a 23 y.o indigenous woman from the Kimberley in the far north of WA. She is 33/40 G1P0 complex social history and possible substance use disorders

She has PPROM (pre term premature rupture of membranes) and suspected early chorioamniotis and has been given antibiotics / nifedipine and a few litres of crystalloid fluid during the flight.

The obstetric team have evaluated her – she has small for gestational age baby, and is complaining of dyspnoea.

Her observations are: HR 110, NIBP 124/60, SpO2 91% on room air, T38.1

Her bloods are relatively normal except for an unexpected high BNP.

You do a focussed bedside transthoracic ECHO and unexpectedly see on the PLAX (parasternal long axis view) a classical hockey stick / domed appearance of severe mitral stenosis. She also has Pulmonary B-lines (indicating pulmonary oedema) and a flattened interventricular septum, very large atrium & doppler through the tricuspid valve confirms severe pulmonary hypertension. 

The team decides she would be better cared for in a hospital with cardiothoracic services – however she suddenly becomes more breathless – SpO2 86% on oxygen, NIBP 80/40 HR 125, and there is a prolonged foetal bradycardia…………………

Hi Everyone,

This week I am joined by Dr Clinton Ellis, a cardiothoracic anaesthetist based in Sir Charles Gairdner Hospital, and Graeme. We discuss the management of rheumatic heart disease in pregnancy – a challenging condition which unfortunately is still relatively prevalent amongst indigenous women here in Australia.

This was a wide ranging discussion so I have decided to split this into two 40min episodes. Even though we talk for over 80min I feel like we just scratched the surface on this! If you have any questions or comments send them through – I will try and get Clinton to answer them.

Finally a huge shout out and thank you to the Darwin based authors of the ANZCA 2023 Blue Book article on this condition: Namrata Jhummon-Mahadnac, Matthew Mathieson, and Akshay Hungenahally! See the link to their well written narrative review on this topic below:

References

Australasian Anaesthesia 2023 (aka the Blue Book) – see page 39 “Obstetric anaesthesia in rheumatic heart disease – a unique perspective from the Top End”

Oral vaccine could prevent rheumatic heart disease in NZ

VIDEO: Researchers close to a vaccine for strep-A and rheumatic heart disease

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.