AbstractID – 103553 |
Presentation Preference –
Oral |
Resident's Prize – Resident's
Prize |
Category – Esophageal (S1) |
|
Neoadjuvant Chemoradiotherapy Is Not Associated With A
Higher Complication Rate Versus Surgery Alone In Patients Undergoing
Operation For Esophageal Cancer
Scott T Kelley, Richard C Karl, Tampa, FL.
Introduction: Recent studies cite a higher perioperative complication
rate related to the use of neoadjuvant chemoradiotherapy in the treatment
of esophageal cancer. We tested the hypothesis that neoadjuvant
chemoradiotherapy has no significant effect on the complication rate at
our institution.
Methods: We identified 170 (148 males-87%; 22
females-13%) patients with esophageal carcinoma who underwent
esophagectomy between 1996 and 2002 from our prospective database. This
included 73 (43%) patients treated with neoadjuvant chemoradiotherapy
(group I) and 97 (57%) who underwent esophagectomy alone (group II).
Neoadjuvant therapy consisted of a preoperative regimen of 2 courses of
cisplatinum (day 1 and 28), continuous infusion of 5-FU, and radiation
(5040cGy), followed by esophagectomy. Ivor-Lewis esophagectomy was
performed in 161 (95%) and transhiatal in 9 (5%) cases. Groups I and II
were comparable in terms of: age (61.1±11 years
vs. 64.5±11); pathologic diagnosis
(adenocarcinoma: 84% vs. 91%, squamous: 16% vs. 9%); and pathologic stage
(AJCC): (stage I: 39% vs. 35%, IIa: 13%vs. 18%, 2b: 13% vs. 11%, III: 29%
vs. 32%, and stage IV: 6% vs. 4%). The neoadjuvant group had 24 (33%)
complete responses, 22 (30%) partial responses (where tumor size shrunk to
at least 50% pre-treatment values via endoscopic ultrasound), and 27 (37%)
non-responses.
Results: There were 40 (23.5%) postoperative
complications for the entire cohort, which included 3 deaths (1.8%) (2 in
group I and 1 in group II) and 4 anastomotic leaks (2.3%) demonstrated by
routine gastrograffin swallow on postoperative day 7 (1 (1.4%) in group I
vs. 3 (3.1%) in group II). Only one leak required reoperation (group I),
while all others responded to conservative treatment. Group I had 14
(19.2%) complications versus 25 (25.7%) in group II (F-test=NS). The
groups were comparable (group I vs. II) with respect to the rate of
pneumonia (4.1% vs. 8.2%), arrhythmia (5.5% vs. 8.2%), and stricture
formation (5.5% vs. 7.2%). Within the neoadjuvant group, complete
responders were no less likely to have a complication than were
nonresponders to preoperative chemoradiation (26% vs. 22%,
respectively).
Conclusions: We conclude that the addition of
neoadjuvant chemoradiotherapy in patients with esophageal cancer did not
increase perioperative morbidity or mortality rates. In addition, a
complete response to preoperative chemoradiotherapy did not affect
perioperative complication rate.
|