الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 217 |  |  |
| | | from | 217 | | |
Abstract
Minimally invasive surgery is considered to be one of the most important advances in the field of veterinary surgery which have numerous advantages for both surgeons and patients.
The present work aimed at evaluation of minimally invasive surgery in both clinical and experimental studies. The work was divided into two parts:
1- Clinical Study: -
In this study, a wide variety of abdominal disorders that were treated laparoscopically were recorded. The advantages, disadvantages, complications, and conversion rates were reported to assess the efficiency of laparoscopy in management of these cases.
A total of 177 dogs were admitted to the CSU VTH for different laparoscopic surgeries from September 2018 to September 2020.
Physical examination of the cases was performed preoperatively including the vital parameters (such as body temperature, respiratory rate, heart rate, capillary refill time, heart and lung sounds) and abdominal examination.
Special examination for the cases included complete blood picture and biochemistry profile (for assessing of the anesthetic risks for each patient).
Different diagnostic imaging modalities were used as needed for each case and after owner approval including radiography (thoracic and abdominal), abdominal ultrasonography, computed tomography, and magnetic resonance imaging for diagnosis and patient selection for minimally invasive surgery.
Laparoscopic procedures done in this study included laparoscopic ovariectomy (75), laparoscopic treatment of ORS (2), laparoscopic cryptorchidectomy (22), laparoscopic assisted cystotomy for removal of cystic calculi (17), laparoscopic splenectomy (4), laparoscopic cholecystectomy (6), laparoscopic adrenalectomy (3), laparoscopic liver biopsy (13), laparoscopic repair of diaphragmatic hernia (4), laparoscopic gastropexy (either assisted or intracorporeal gastropexy) (84), laparoscopic treatment of sliding hiatal hernia (4), laparoscopic resection of paraprostatic cyst (1).
Concerning complications, the intra operative complications were simple and not life-threating and most of them did not require conversion to open approach except one case suffered from cardiopulmonary arrest which required conversion for rapid CPR. The most common intra operative complication recorded was splenic puncture (n = 5) which usually resolved on its own. The commonly recorded post-operative complications were seroma formation (n = 6), vomiting (n = 5), and wound dehiscence (n = 4). One French bulldog was euthanized 48 hours post operatively due to poor prognosis of an upper air way surgery that was performed concurrently with laparoscopic ovariectomy.
Regarding conversion, 8 cases were converted to open approach (4.52 %). One case was converted due to life threating event (cardiac arrest). Other cases had elective conversion.
2-Experimental study: -
Two experiments were carried out. The first experiment compared conventional and intracorporeal VUA in canine cadaveric model. The second study compared conventional and barbed suture materials used for VUA in an ex vivo canine model.
In both experiments, groups were compared for leakage pressure (in mmHg), number of bites required for construction of the anastomosis, leakage site, and suturing (anastomotic) time (in minutes).
In first experiment, VUA was conducted using 4/0 Glycomer 631. In the second one, V-Loc™ 90 barbed suture was used.
Results of the first experiment showed that there was no significant difference in the leakage pressure between both groups. The suturing time was significantly longer in the intracorporeal group.
For the second experiment, the results showed that there was no difference in the leakage pressure between biosyn and barbed suture groups. Concerning suturing time, the results showed that it was significantly shorter in the v Loc group. As for suturing bites, the results revealed that it was significantly lower in barbed suture group.