LWBK1006-06 LWW-Govindan-Review November 24, 2011 11:20
Chapter 6•Principles of Surgical Oncology 79Question 6.8. The same patient presents to a center regarded as very experienced in mini-
mally invasive surgery. Her esophagectomy is performed laparoscopically.
Compared with open esophagectomy, she is expected to have:
A. No difference in either lymph node retrieval or 3-year survival
B. No difference in lymph node retrieval but a decreased 3-year survival
C. Decreased lymph node retrieval but no difference in 3-year survival
D. Decreased lymph node retrieval and 3-year survivalQuestion 6.9. The decreased venous return and increased transmitted intrathoracic pres-
sure inherent in laparoscopic surgery are thought to cause which of the
following physiologic changes during laparoscopic procedures?
A. Increased heart rate
B. Decreased cardiac index
C. Decreased systemic vascular resistance
D. Decreased central venous pressureQuestion 6.10. Retrospective analyses of colon resection for colon cancer have demon-
strated that the difference in the rate of recurrence at laparoscopic port
sites compared with the rate of recurrence in analogous open procedures
is approximately:
A. 0
B. Greater by 10%
C. Greater by 20%
D. Not knownQuestion 6.11. A 55-year-old man with a several-month history of hemoccult posi-
tive stools has recently been diagnosed with gastric cancer by upper
endoscopy. Staging CT demonstrates no evidence of intra-abdominal dis-
ease. You recommend a staging laparoscopy before definitive resection
because:
A. CT has a high false-negative rate in the staging of most cancers.
B. Carcinomatosis and peritoneal seeding are more accurately diagnosed
with laparoscopy.
C. Nontherapeutic laparotomies can be avoided in more than 20% of
patients after staging laparoscopy.
D. All of the above.Question 6.12. The benefits of laparoscopy are:
A. Reduction in postoperative pain
B. Decreased healing time
C. Decreased adhesion formation
D. All of the above