An anastomosis is a connection between two tubular anatomical structures. Anastomoses have been a great surgical challenge from antiquities to modern times. Main research on the manual techniques and healing processes of digestive anastomoses took place during the 19th century. They were later improved by the advent of mechanical devices in the early 20th century. For both types of anastomoses, local and general conditions required for a good healing are the same. Many devices, both for manual and mechanical anastomoses have been developed. The devices’ uses depend on their availability, surgeons usual practice and the relative difficulty of the anastomosis. The debate is still lively about the advantages and the potential inconveniences of one technique versus the other in regards to many parameters such as operating time and the incidence of anastomotic leakage.
Anesthetic Management of Abdominal Surgery 57 ASA 1Healthy patient without organic, biochemical, or psychiatric disease. ASA 2A patient with mild systemic disease e.g., mild asthma or well controlled hypertension.No significant impact on daily activity.Unlikely to have an impact on anesthesia and surgery. ASA 3Significant or severe systemic disease that limits normal activity, e.g., renal failure on dialysis or class II congestive heart failure.Significant impact on daily activity.Probable impact on anesthesia and surgery. ASA 4Severe disease that is a constant threat to life or requires intensive therapy, e.g., acute myocardial infarction, respiratory failure requiring mechanical ventilation.Major impact on anesthesia and surgery. ASA 5Moribund patient who is equally likely to die in the next 24 hours with or without surgery. ASA 6Brain-dead organ donor 'E' added indicates emergency surgery
