Priority 4 from the Hyperemesis Gravidarum PSP

UNCERTAINTY: Is HG preventable? What is the effect of preventative treatment or early intervention on the severity and duration of hyperemesis gravidarum in a subsequent pregnancy?  (JLA PSP Priority 4)
Overall ranking 4
JLA question ID 0090/4
Explanatory note Not available for this PSP

One study which does not sufficiently answer the question

Health Research Classification System category Reproductive health and childbirth
Extra information provided by this PSP
Original uncertainty examples Is there anything the patient could have done/can do different to prevent it?~ What can be done to help prevent HG in those identified as at risk, I e  those who have had it in previous pregnancy. ~ What factors determine duration - do certain treatments or early intervention affect duration or is it determined by the underlying cause? ~ What is the best way to get HG under control ASAP and limit the mental effects to the patient? ~ If you start taking medication early on in pregnancy will this lessen symptom severity overall?
Submitted by Patients x 152 ~ Healthcare professionals x 22 ~ Carers x 5 ~ Offspring x 12 ~ Organisational representatives x 1 ~ Unknown x 1 
PSP information
PSP unique ID 0090
PSP name Hyperemesis Gravidarum
Total number of uncertainties identified by this PSP. 65  (To see a full list of all uncertainties identified, please see the detailed spreadsheet held on the JLA website)
Date of priority setting workshop 9 October 2019