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From time to time medical experts or the CVSA ask CVS sufferers to take part in surveys to help build our understanding of the condition, the effects it has on sufferers or their families, and to help us improve our website, newsletter and information.


Current Surveys



Closed Survey:

Emily Smith Nov 2014

I am a last year A-Level student at a school in Kent. As part of my EPQ (Extended Project Qualification), I am researching around the question "How does Cyclical Vomiting Syndrome effect individuals daily life?" The outcome of the questionnaires will lead me to analyse how individuals are affected daily, as well as pinpointing the key factors that influence these affects. Furthermore, I must stress that the information you provide in the questionnaires will be treated in the strictest confidence, with only myself utilising it for my EPQ work.

These are very quick to complete, please help and fill in the one relevant to yourself.

Emily thanks everyone who took part both online and at the family day, she will write up a summary for a newsletter.


Study of the Use of Marijuana as a Treatment for CVS

Researchers at the University of Calgary and the Medical College of Wisconsin invite you to participate in a web-based survey on the role of marijuana in Cyclic Vomiting Syndrome. You are eligible to participate in the survey whether you use marijuana or not.

This survey is a research activity that we are undertaking to understand the effects of marijuana/cannabis on CVS and is voluntary. This will take approximately 15-20 minutes to complete and is completely anonymous. Your personal information such as name, date of birth, address, etc. to name a few will not be collected and you cannot be identified from this survey. We cannot collect even your email address or identify the computer you are working on with this survey.

Thangam Venkatesan MD
Assistant Professor of Medicine
Fellowship Program Director
Division of Gastroenterology and Hepatology
Department of Internal Medicine

The results are now published thanks to anyone who contributed

Venkatesan T, Sengupta J, Storr M et al: Marijuana & hot shower use in patients with CVS. Exp Brain Research, May 4, 2014