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FLS Module 3 - basic laparoscopic procedures Questions and Answers Fully Solved
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What are some of the newest developments in laparoscopic surgery? - answer Robotic assistance, single port site procedures, Natural Orifice Translumenal Endoscopic Surgery (NOTES), and intrauterine fetal surgery List 5 laparoscopic procedures that are performed on newborn infants - answer appendectomy, undescended testes, anti-reflux surgery, pectus repair, PDA, intestinal atresia, pyloromyotomy, and surgery for Hirschsprung's disease Indications for diagnostic laparoscopy - answer elective - cancer staging, chronic abdominal pain urgent - small bowel obstruction, vs ileus Emergent - trauma, suspected iatrogenic injury, perforated viscous During what procedures could you inadvertently enter the peritoneal cavity and subsquently need to perform a diagnostic laparoscopy? - answer hysteroscopy, endoscopy Key elements of performing a lysis of adhesions - answer Use both blunt and sharp dissection with gentle traction on tissue. Be cautious and sparingly use energy sources for hemostasis to avoid thermal spread What is the best position for patients getting surgery on the upper abdomen? - answerArms on arm boards, reverse trendelenburg position with a footboard and safety strap on lower thighs to keep patient from sliding. Monitors placed at head of table for viewing operative field. What is the key to patient positioning? Where would you place your initial port for a diagnostic lap where you need to view the entire abdomen? After your initial port, where do you place additional ones? - answerMaximize the ergonomics of the surgeon and assistant. Usually initiate access in LUQ and 2 additional ports can also be placed in the left abdomen (then surgeon and assistant can stand on left side together). This allows the entire abdomen to be visualized except for immediately below the ports or lateral to the ports. General principles of diagnostic lap of the liver - answerAngled scope Tools for biospy and hemostasis May need ultrasound to visualize structures under the surface. To see anteriorly: may need adhesiolysis To see posteriorly: may need special liver retractor or careful use of blunt instruments
Why would you do a diagnostic lap of the anterior abdominal wall? What area should you enter the abdomen? What degree scope should you use? - answerTo look for evidence of post-op bleeding, adhesions, hernia or tumor. Left upper quadrant, unless the area of interest is in the LUQ. 30 degree scope Best position and port placement for diagnostic pelvic laparoscopy - answer- Tucked arms so surgeon can be ergonomically favorable.
What sort of needle should you use for a FNA in laparoscopy? - answerA spinal needle that can reach target tissue through abdominal wall. What do you need to do with the plunger of your needle for a FNA biopsy before you remove the need from the abdominal cavity? - answerRelease the plunger to release the suction before you remove it from the abdominal cavity. Then detach the needle from the syringe and fill up the syringe with air to push out contents of needle into specimen cup. For what organ would you most commonly perform a core needle biopsy? What guage of needle is it? - answerLiver biopsy
How do you prevent seeding of the abdomen with an ovarian specimen or causing ovarian remnant syndrome? - answerUse a retrieval sac or ensure small specimens are small enough to fit through the port you have in place. After you biopsy a hollow viscous such as bowel, how do you repair it? - answerSerosal suture to avoid leakage post-operatively. Around what types of structures should you avoid monopolar cautery? - answermonopolar cautery should be avoided around vascular structures, ureters or nerves. What types of biopsy are commonly used with ultrasound guidance? - answerCore needle biopsy or FNA What are the benefits to using a braided suture over a monofilament suture for laparoscopy? - answerbraided sutures easier to handle, less tendency to fray, less throws per knot, less memory in the suture Why would you choose a suture that is dyed rather than an undyed suture for laparoscopy? - answerA suture without dye may absorb blood and blend into background making it difficult to use which needle type is safer to use in laparoscopy, tapered or cutting? - answerTapered needles Name two locations for the locking mechanisms for needle drivers in laparoscopy - answer- pistol grip
What size port do you typically need to use a laparoscopic stapling device - answer mm port What staple height is used for vascular structures? GI tract? Distal stomach or unusually thick portions of GI Tract? - answerVascular: 2-2.5 mm (white cartridge) GI tract: 3-3.5 mm (blue cartridge) Stomach or thick GI tissue: 4-4.5 mm (green cartridge) What size trocar will accommodate placing a standard SH type needle through the cannula? - answer10-12 mm trocar What is the ideal suture length for intracorporeal knot tying? (hint, same length as what you are given for the FLS task!) - answer15 cm (6 inches) What is the ideal suture length for extracorporeal knot tying? - answer75 cm (30 inches) What is the ideal orientation for suture (what positions on the face of a clock) - answer o'clock to 9 o'clock What steps should you take to control bleeding intraoperatively? - answerOptimize visualization, grasp and hold the bleeding source, maintain exposure to it, and apply hemostatic techniques When the trocars are placed through what muscle you have the highest risk of injury to the epigastric vessels - answerrectus muscles Name several ways to control bleeding from a port site - answer- Energy source, direct pressure, suture ligation,
What are the advantages to using bipolar over monopolar electrocautery? - answerUsed for larger vessels, works in a "wet" operative field, less lateral thermal spread and a lower energy requirement.