Imaging Photoplethysmography for Noninvasive Anastomotic Perfusion Assessment in Intestinal Surgery

Introduction: Anastomotic leakage after gastrointestinal surgery has a high impact on patient's quality of life and its origin is associated with inadequate perfusion. Imaging photoplethysmography (iPPG) is a noninvasive imaging technique that measures blood-volume changes in the microvascular tissue bed and detects changes in tissue...

Early detection of anastomotic leakage using oxygen and carbon dioxide sensor

Optical sensor has been introduced to detect anastomotic leakage (AL) in an early stage. AL is a most feared complication in anastomosis operation, because there is no tool that can detect this effectively. Therefore, oxygen and carbon dioxide have been introduced for constant monitoring of the condition of anastomosis. This thesis will...

Preventing Anastomotic Leakage: An experimental approach to the redesign of a colorectal stent

The large intestines, or colon, is the last part of the digestive tract before the rectum. Colorectal cancer is one of the main reasons that patients need a colon resection. A colon resection is a surgery in which the malignant part of the colon is removed. After removal of the tumor, the two ends of the colon need to be reattached, also called...

In-vitro waveguide system for the detection of Escherichia coli in drain fluid after colorectal anastomotic leakage

Colorectal anastomotic leakage is one of the most feared complications after colorectal surgery and is associated with increased morbidity, prolonged hospital stay and risk of local cancer reoccurrence. One out of ten anastomoses leak, leading to infections. Colorectal anastomotic leakage is currently diagnosed by sniffing and watching drain...