
Web Based Interactive Treatment and Self-monitoring in Hypertension
HypertensionThe WISH-trial is an open-label, parallel-group, randomized controlled trial. The effects of self-measuring of the blood pressure at home and the use of a pro-active web-based feedback system on the blood pressure, number of antihypertensive drugs used, and surrogate cardiovascular markers during a 12 month period will be investigated.

Renin and Aldosterone Levels in the Preterm Neonate At Risk for Hypertension
HypertensionDiabetes1 moreThe purpose of this study is to find out if mothers with high blood pressure (Hypertension) and/or diabetes have babies with high levels of different substances (that help to regulate blood pressure, called Renin and Aldosterone) in their blood. The investigators are also trying to determine if these babies have higher blood pressure than those babies born to mothers without high blood pressure or diabetes, during the first year of life. The investigators will measure your baby's blood pressure once a day for the first 4 days, at 1 week of age, and then once per week until your baby is discharged. The investigators will also measure the blood pressure after discharge at 4 and 10 months of age, either on the day of your baby's follow-up appointment in the Neonatal Follow-up Clinic or at a visit to our Outpatient Nephrology Clinic, both at CHEO.

Observational Study of Lumigan® 0.01% for Treatment of Primary Open Angle Glaucoma (POAG) or Ocular...
Open-Angle GlaucomaOcular HypertensionThis is an observational study in patients with POAG or OHT that will collect data on the use of Lumigan® 0.01% (bimatoprost 0.01% ophthalmic solution) in a routine clinical setting. Patients will be seen at baseline and at a follow-up visit approximately 8-12 weeks after baseline, as per normal clinical practice.

Pulmonary Hypertension in Patients With Sickle Cell Disease in Nigeria
Secondary Pulmonary Arterial HypertensionSickle Cell Disease1 moreThis study will explore how people with sickle cell disease (SCD) develop a complication called pulmonary hypertension (PHTN), a serious disease in which blood pressure in the lungs is higher than normal. PHTN is also caused by HIV, hepatitis C and schistosomiasis. Patients who have both SCD and one of these other infections may develop more severe PHTN. The number of Nigerians with SCD who also have PHTN is not known, nor is the cause of PHTN in this population. This study will examine genetic material in people with and without SCD to determine whether certain genes will allow doctors to predict which patients with SCD are likely to develop PHTN. Nigerian males and females 10 years of age and older with or without SCD may be eligible for this study. Patients must have SS, SC, or SB thalassemia or other genotype; control subjects must have hemoglobin A or AS genotype. Participants undergo a complete medical history and physical examination, blood tests, electrocardiogram (EKG), ultrasound tests of the heart and abdomen, and a 6-minute walk (distance test) to determine exercise capacity. Blood tests include screening for HIV, hepatitis B and C, schistosomiasis, hookworm and malaria. Patients who test positive for HIV, hepatitis B or C, schistosomiasis, hookworm or malaria are referred for treatment at Ahmadu Bello University Teaching Hospital in Zaria, Nigeria, and those who test negative for hepatitis B are referred for vaccination. Genetic tests focus on genes involved in SCD, PHTN, inflammation, blood vessel function and red blood cell function.

Evaluating the Relationship Between Inflammation, Genetics, and Stress in the Development of High...
HypertensionHigh blood pressure affects nearly one third of all individuals in the United States. If left untreated, it can lead to stroke, heart failure, heart attack, kidney failure, or blindness. For many people, the exact cause of high blood pressure is unknown, but it is believed that both genetic and environmental factors contribute to the development of the condition. The purpose of this study is to examine the importance of genetics, inflammation, and stress on the development of high blood pressure.

A Pilot Study of Changing Medication Adherence In Hypertensive African-American Patients
HypertensionWe will conduct an empirical test of the two intervention approaches under study. Specifically, we seek to determine the potential differential impact of positive affect induction and self affirmation.

Comparison of Two Treatment Strategies in Hypertensive Patients
HypertensionThe purpose of the study is to determine whether a specific training of General Practitioners (Family Physicians) regarding the new official guidelines for the treatment of hypertension results in a higher control of high Blood pressure in their patient population.

Improving Hypertension Care for Inner City Minorities
Cardiovascular DiseasesHeart Diseases1 moreTo improve long-term blood pressure BP) control in a predominantly African-American, low SES community of a large city.

Diagnosis/Pathophysiology of Glucocorticoid Remediable Aldosteronism Hypertension
Cardiovascular DiseasesHypertension1 moreTo identify and study a large cohort of glucocorticoid remediable aldosteronism (GRA) patients.

Virtual Imaging-based Early Portal Pressure Gradient (vePPG) (CHESS1702)
HypertensionPortalPortal pressure gradient (PPG) above 12 mmHg after transjugular intrahepatic portosystemic shunt (TIPS) increases the risk of portal hypertension complications. Currently, a PPG reduction <12 mmHg after TIPS is the most consistent threshold associated with almost complete protection from variceal bleeding and ascites. However, the measurement of PPG requires an invasive procedure. A recent study investigated the variations in PPG measurements collected at different time points after placement of TIPS and demonstrated that a time point of at least 24 hours after which PPG values were best maintained (early PPG). It is of great clinical value to propose that an immediate PPG measurement fail to accurately identify the risk of decompensated event. And early PPG would change the decision making for re-intervention or not. However, the repeated invasive examination is extremely difficult to follow in clinical practice worldwide. The prospective multicenter trial aims to assess the diagnostic performance of a virtual imaging-based early portal pressure gradient (vePPG) (investigational technology) from CT angiography and Doppler ultrasound with invasive early PPG measurement as reference. The study participants with portal hypertension will be prospectively recruited at 10 high-volume liver centers in China.