This is also known as a sleeve gastrectomy or vertical sleeve. It is usually performed laparoscopically (keyhole surgery). This is a restrictive surgery. The aim of the surgery is to reduce the size of your stomach. Normally when you eat, your stomach expands and stores the food you have eaten. A hunger hormone is also produced by the stomach, promoting your appetite. In a sleeve gastrectomy, approximately 75% of your stomach is removed. It turns your stomach from a storage compartment, into a tube. This tube no longer has the same storage capacity as your original stomach, and essentially acts as a conduit. Furthermore, less hunger hormone is produced as most of your stomach that produces the hunger hormone has been removed.
Not everyone is a suitable candidate for this procedure, and this will be discussed during consultation.