Refer for the ENDOSURE Diagnostic Test
Fax this form to the patient’s preferred ENDOSURE test location.
The Only Tier 1 Diagnostic Test for Endometriosis
Canadian clinics offering ENDOSURE Test
| Clinic | Location | Lead Provider | Phone | Fax |
|---|---|---|---|---|
| Links Medical Clinic | Edmonton, AB (Mira Health Centre, #109 – 11910 111 Ave NW) | Dr. Sam Azer, OBGYN | +1 (780) 454-0351 | +1 (780) 429-0372 |
| CReATe Fertility London | London, ON (215 Fanshawe Park Road West, Suite 10) | Dr. John McNaught, OBGYN | +1 (519) 472-9333 | +1 (519) 286-0277 |
3-minute Endometriosis
Practitioner Webinar
- The only TIER-1 diagnostic test for endometriosis
- Supporting primary care providers with rapid diagnosis
- EVG captures the GIMA biomarker of endometriosis
- Non-invasive testing, instant results
- Impact of rapid diagnosis
ENDOSURE provides clinical evidence If You suspect endometriosis
TIER-1 Diagnostic Test for Endometriosis
ENDOSURE is an accurate yet non-invasive diagnostic test for endometriosis. The ENDOSURE test uses an electroviscerography system (EVG), an analytical instrument that collects Gastro Intestinal Myoelectrical Activity (GIMA) signals from the abdomen through dry electrodes. The test detects endometriosis presence by measuring a GIMA pattern unique to endometriosis sufferers, known as the GIMA biomarker. Very similar to an electrocardiogram/EKG it’s easy to perform and provides a near-instant diagnostic result using simple, objective GIMA data.
Information for Providers
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Electroviscerography system (EVG) is an analytical instrument that collects
myoelectrical activity signals from the gastrointestinal tract (GIMA).
ENDOSURE test records patient GIMA pattern over 30-minutes, then compares data to the GIMA biomarker of endometriosis, a known digital “fingerprint” of people who suffer from endometriosis.2,3
Near-instant results support your diagnosis of endometriosis and expedite disease management.
Frequently Asked Questions
What should patients expect?
Testing is painless and takes just under an hour. Similar to an ECG but for the gut: electrodes record gastrointestinal myoelectric activity (GIMA) for 30 minutes while patient remains still and relaxed.
When should patients schedule an ENDOSURE test?
Scheduling ENDOSURE Test:
- Non-menses
- ≥2 wk post-acute GI illness
- ≥2 wk post-abdo/pelvic infection
- ≥3 mo post-abdo/pelvic surgery
- Stable/No active: celiac/crohns/ulcerative colitis/ SIBO/bowel obstruction/
GI infection sx
What are guidelines for medication restrictions for patients preparing for testing?
NPO 8h pre-EVG. Hold opioids x48h; antispasmodics/prokinetics/bowel stimulants x72h; THC/GLP-1 agonistsx30d pre-EVG. Cont APAP/NSAIDs/hormonal tx/antidepressants/neuropathic pain meds/antiemetics PRN.
What if a patient is diabetic?
Patient preparation includes:
-NPO 2-hours pre-test
-2-8h pre-test, allow small snack – 4oz apple/grape juice + 1 dry toast slice OR 2 rice cakes. NPO ≥2h pre-test.
– Continue all routine Rx meds unless specified otherwise. Take w/ small sips H2O if needed. NPO ≥2h pre-test.
Other instructions remain the same:
-NPO MN caffeine
-Hold opioids x 48h pre-EVG
-Hold antiemetics/antispasmodics/prokinetics/THC x 72h pre-EVG
What medications can affect the ENDOSURE test?
- Opioid pain medications that slow the bowel: Codeine, Oxycodone, Hydrocodone +/- acetaminophen, Morphine, hydromorphone, Tramadol +/- acetaminophen
- Medications that change intestinal movement: Metoclopramide, Domperidone, Itopride, Levosulpiride, Erythromycin, Dicyclomine, Hyoscine butylbromide, Loperamide
- THC containing cannabis products
- GLP-1 receptor agonists that slow stomach emptying: Tirzepatide – Mounjaro, Semaglutide – Ozempic/Wegovy
What medications are usually save to continue during an ENDOSURE test?
Acetaminophen, NSAIDs, Hormonal contraceptives, Endometriosis hormone therapy, Antidepressants, Neuropathic pain medication, Antiemetics
Can patients continue with medical marijuana?
Preparations containing THC should be discontinued 30 days prior to ENDOSURE testing.
When do I see test results?
Results are immediately available. On referral form, request test clinic send a copy of results.
Who reviews test results with patients?
Patients generally book a separate consult with the testing clinics attending clinician to review results.
Can I rely on ENDOSURE test results?
ENDOSURE test is a highly accurate clinical tool helping clinician confidently diagnose endometriosis. Published results are as follows:
Females ≤35 years:
- 99% accurate
- 95% sensitivity
- 96% specificity
Females 36 years+:
- 98% accurate
- 91% sensitivity
- 95% specificity
Is the ENDOSURE test covered by provincial healthcare plans?
ENDOSURE test is only available at private clinics and is not covered by provincial plans (e.g. AHCIP, OHIP). Private insurance has reimbursed some patients in Canada and patients should submit all receipts. Your referral aids patients in making this claim.
What are the most common endometriosis symptoms?
- Dysmenorrhea, Chronic pelvic pain
- Menorrhagia
- Dysuria, Dyschezia, or Dyspareunia
- IBS, GI issues, suspected urinary infection unresponsive to treatment
- Unexplained fatigue or Brain fog
- Anxiety or depression
- Unexplained infertility
- Frequent miscarriage
- Previous high-risk pregnancy
Are there any risks associated with ENDOSURE?
There are no risks associated with this test. There are no components that are used during the test equipment that are harmful. No anesthesia is required for this test.
DIAGNOSTIC SUPPORT for ENDOMETRIOSIS
- Patients under 36: 99% accuracy, 95% sensitivity, 96% specificity
- Patients 36+: 98% accuracy, 91% sensitivity, 95% specificity
- Detects all disease stages
- Detects all disease subtypes & adenomyosis
PATIENT CENTRED
- For all ages, premenarche to post menopause
- Painless & trauma informed
- Minimal patient preparation
- Patients remain fully clothed during test
- Testing takes less than an hour
Clinical Uses
- Rapid diagnosis
- Post treatment patient monitoring
- Confirming factor for infertility
- Adolescent screening
What Clinicians are Saying
- Dr. David Griffiths, Consultant Gynaecologist MB ChB, FRCOG
“ Until now we haven’t had a very good, simple, easy, quick, inexpensive screening test for endometriosis. Until now the only way to diagnose endometriosis definitively has been with a surgical procedure. We have the potential to crack that nut.
Larry Glazerman, MD, MBA
-Dr. Sarah Roth, ND
Published Research:
1. Mark Noar, John Mathias, Ajit Kolatkar. Validation of New GIMA Biomarker Signature of Endometriosis – Interim Data: Research Article. Advance. August 26, 2024.
DOI: 10.22541/au.172469630.08159498/v1
2. Noar M, Mathias J, Kolatkar A. Gastrointestinal Myoelectrical Activity (GIMA) Biomarker for Noninvasive Diagnosis of Endometriosis. J Clin Med. 2024;13(10):2866. Published 2024 May 13. doi:10.3390/jcm13102866
3. AI-Derived Threshold Score of Intraabdominal Myoelectrical Activity Predicts Presence and Stage of Endometriosis with 100% Accuracy, Noar, M., Journal of Minimally Invasive Gynecology, Volume 29, Issue 11, S4 – S5. DOI: 10.1016/j.jmig.2022.09.026
4. Tanos P, Donders F, Massaro A, Philippe S, Karampelas S. Defining the role of the gastrointestinal myoelectrical activity (GIMA) biomarker in the diagnosis of endometriosis. J Minim Invasive Gynecol. 2025;32(11)(suppl):S23. doi:10.1016/j.jmig.2025.09.027
