Clinical trials: Vasoconstriction
Hyperinsulinemia
Effect of Insulin on Endothelin-Dependent Vascular Tone in the Forearm Circulation
Previous studies have shown that insulin may stimulate the release of endothelin (ET) from endothelial cells. This mechanism may contribute to the adverse vascular effects determined by chronic hyperinsulinemia.
- Trial name
- NCT00001624
- Testing
- Insulin
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
One-Lung Ventilation, Thoracic Surgery
Dexmedetomidine Improved Oxygenation and Reduced Shunt in One-Lung Ventilation at High-Risk Pediatric Thoracic Surgery
Children with high anesthetic risk who underwent Thoracic surgery with OLV (one lung ventilation) technique during general anesthesia were divided into two groups.
- Trial name
- NCT06505772
- Testing
- Dexmedetomidine, Normal saline
- Where
- Syria
- Volunteers
- 78 people
- Sponsor
- Damascus University
One Lung Ventilation OLV, Esophageal Atresia
The Effect of Dexmedetomidine on Oxygen During One Lung Ventilation in Pediatric Surgery.
The children who will undergo OLV (one lung ventilation) through general anesthesia will be divided into two groups: The first will be intravenous infusion of dexmedetomidine at 0.4 mcg / kg / hour, and the second will be…
- Conditions
- One Lung Ventilation OLV, Esophageal Atresia, Hydrocystoma, Pneumonectomy
- Trial name
- RCT (NCT04932746)
- Testing
- Dexmedetomidine
- Where
- Syria
- Volunteers
- 110 people
- Sponsor
- Damascus University
Postural Tachycardia Syndrome
Local Vasoconstriction in Postural Tachycardia Syndrome
The investigators study will determine how often blood flow regulation abnormalities and abnormalities of sympathetic regulation produced by nitric oxide, angiotensin-II, and oxidative stress occur in POTS and the mechanism(s) of…
- Trial name
- NCT01210430
- Testing
- Losartan, Ascorbic Acid (Vitamin C), Normal Saline
- Where
- United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- New York Medical College