230 likes | 352 Views
Morcellation of specimen : Fact or fiction?. Gustavo Plasencia MD, FACS, FASCRS. Historical Technique. Sufficient mobilization so that distal and proximal bowel reach point of extraction at abdominal wall Intracorporeal devascularization requires smaller incisions
E N D
Morcellation of specimen : Fact or fiction? Gustavo Plasencia MD, FACS, FASCRS
Historical Technique Sufficient mobilization so that distal and proximal bowel reach point of extraction at abdominal wall Intracorporealdevascularization requires smaller incisions Transecting bowel intracorporeally, may require smaller incision, vs loop extraction Incisions should be muscle splitting; bulky pathology may require cutting muscles
Historical Technique Incision size should be as small as technically feasible Wound protectors necessary in malignant pathology Inject local long acting anesthetic at incisions
Incision • Transverse/Longitudinal • Muscle Splitting/Sparing • Wound Protector- helps prevent wound recurrence/infection
Current Steps of Colectomy Anastomosis and Extraction independent of each other Devascularizationshould be done intracorporeally to facilitate extraction Intact or Morcellated specimen Extraction through incision of anterior abdominal wall, through trochar, through natural orifice
IntracorporealAnastomosis Totally intracorporealcolectomy Transrectal extraction (NOTES) 1990
IntroductionTissue Morcelation Common for spleen, uterus,kidney, in benign diseases Piecemeal extraction of tissues Avoid extraction incisions. Use only trochar sites; may be slightly enlarged, dilated
Principles for morcellation • Only performed for benign disease • Requires impermeable entrapment bag • Check bag for perforation • Maintenance of pneumoperitoneum • Avoid overflow in the bag by frequent suction of fluid and tissues
Principles for morcellationcont. • Change gloves after tissue extraction • Any manipulation should be done with atraumatic instruments • Perform under laparoscopic visualization
Advantages • Less post-operative pain • Improved cosmesis • Potential advantages • Reduced risk of incisional hernias • Decreased risk of wound infection • Quicker return to activities
Disadvantages • Injury to adjacent tissues when morcellating • Extra cost if using morcellating device • Longer OR times • Not recommended for malignant disease
Malignancy? • Cannot obtain adequate staging of cancer, due to destruction of primary as well as lymph nodes
How we do it • Cook endo bag used • Tissues morcellated without any extra equipment.
How we do it • Three 3mm or 5mm trochars for graspers and camera • 5mm thirty degree scope gives better visualization • One 15mm port for placement of stapler, through which well lubricated head of circular stapler is passed, and tissue extracted • May have to enlarged by blunt dilatation (opened Kelly clamp)
How we do it Take mesentery either at base or close to bowel. Divide bowel at rectosigmoidjct Introduce into abdomen, head of circular stapler with spear and loop of 1-0 prolene attached Choose proximal margin of resection, a few cm distally make an incision on antimesenteric border
How we do it Pass the head with attached spear and prolene proximally into bowel. Let prolene stick out Transect bowel at proximal margin of resection with endostapler. Place no tension on prolene suture. Stapler will not cut suture Pull on suture until tip of spear pushes staple line and apply countertraction until spear perforates staple line. Pull on suture until head is flat on staple line. Place an endoloop around circular head for security. Remove spear
How we do it Perform transrectalanastomosis. Place specimen in bag Exteriorize bag through 15mm trochar. Extract specimen piecemeal or with morcelator
Results 10 pts Avg age 66y (range 52 – 81) 4 males, 6 females Length of stay 2.4 days (range 1-4) Time to flatus 1.4 days (range 1-3)
Pain Control KETOROLAC iv started intraop, continued as needed for first 24 hrs. on all pts, then switched to propoxyphene, ibuprofen or acetaminophen one pt required ketorolac for 48 hrs Three pts required ketorolac and narcotics (HYDROMORPHONE) for first 48 hrs Three pts used propoxyphene after being discharged, the rest used ibuprofen or acetaminophen
Complications One pt (male with acute and chronic diverticulitis) converted to normal laparoscopic colectomy, due to incomplete anastomosis No leaks 1 mild cellulitis at extraction site, treated with oral antibiotics 1 pt travelling from South America discharged post op day 1, readmitted and treated for severe diarrhea
Future? • Incisionless • Natural Orifice • Hybrid (Laparoscopic+Morcelation+NOTES)