[Have Multimodal and Perioperative Therapeutic Strategies Changed the Survival after Oncological Oesophageal Surgery in the Last Two Decades? A Retrospective Cohort Analysis over 23 Years].

Abstract:

BACKGROUND:Esophageal malignoma is among the most frequent causes for cancer-related deaths. The only definite curative therapy is esophagectomy embedded in various multimodal treatment regimens. The aim of this study was to evaluate long-term development after esophageal surgery in the last two decades in order to observe possible trends and their influence on short, medium and long term survival. PATIENTS AND METHODS:Cases of 301 patients who underwent esophagectomy between 1989 and 2012 were analysed retrospectively. To investigate possible changes in perioperative management and their influence on prognosis patients were divided into two cohorts (A: surgery between 1989 and 2000; B: surgery between 2001 and 2012) and further analyzed with regard to demographics, tumor entity, stage, complications and survival. Statistics were conducted to compare both groups while p ≤ 0.05 was regarded as statistically significant. RESULTS:In cohort B patients were significantly older compared to cohort A and underwent surgery in earlier tumor stages with a higher lymphnode yield. Also an increased incidence of adenocarcinoma was observed. While overall morbidity did not change significantly, a decreased rate of anastomotic leakage was observed in cohort B (5.5%) compared to cohort A (12.3%) accompanied by a simultaneous increase in cardiac events (A: 3.6% vs. B: 12.3%). Overall 30-days-mortality was 2.7% and decreased significantly from 5% in cohort A to 0.7% in cohort B (p = 0.05). Median survival was 46 ± 7 month in cohort A, in cohort B an increase could be observed (53 ± 7 months, p = 0.03). By univariate analysis we could demonstrate that stage, affected lymph nodes, lymphnode ratio (LNR) and incidence of postoperative complications were significant predictors for the survival whereas in multivariate analysis T-stage, R-status and LNR were independent predictors for patients outcome. CONCLUSION:Patients undergoing esophageal resection for cancer nowadays are older than in the past decades. Earlier cancer diagnosis, more radical surgical techniques with an extended lymphnode dissection, a decrease in anastomotic leakage and an improved perioperative care seem to compensate for this potential demographic disadvantage. The most important independent predictor of outcome after esophageal resection is the LNR. HINTERGRUND:Malignome des Ösophagus zählen zu den häufigsten krebsbedingten Todesursachen. Den einzigen kurativen Therapieansatz stellt die radikale Ösophagektomie, eingebettet in ein multimodales Therapiekonzept, dar. Ziel der Untersuchung war die Analyse von Langzeitentwicklungen in der operativen Therapie des Ösophaguskarzinoms und deren Einflüsse auf das kurz- (1-JÜR), mittel- (5-JÜR) und langfristige (10-JÜR) Überleben. PATIENTEN UND METHODEN:Es wurden retrospektiv 301 Patienten am Universitätsklinikum Bonn untersucht, bei denen zwischen 1989 und 2012 eine Ösophagusresektion durchgeführt wurde. Um mögliche Trends im Management und Veränderungen hinsichtlich der Prognose zu analysieren, wurden 2 Kohorten (Kohorte A: operiert 1989 – 2000, Kohorte B: operiert 2001 – 2012) gebildet und bez. demografischer Daten, Tumorentität, Stadium, Komplikationsrate und Überleben miteinander verglichen. ERGEBNISSE:In der Kohorte B wurden signifikant ältere Patienten in niedrigeren Tumorstadien mit einer größeren Lymphknotenausbeute operiert, eine Zunahme des Adenokarzinoms (AC) war zu beobachten. Während sich die Gesamtmorbidität nicht signifikant veränderte, konnte eine geringere Rate an Anastomoseninsuffizienzen in Kohorte B (5,5%) verglichen mit Kohorte A (12,3%) bei gleichzeitigem Anstieg der kardialen Ereignisse (A: 3,6% vs. B: 12,3%) nachgewiesen werden. Die 30-Tage-Krankenhausmortalität lag bei insgesamt 2,7% und fiel von 5% (Kohorte A) signifikant (p = 0,05) auf 0,7% (Kohorte B). Das mittlere Überleben betrug in der Kohorte A 46 ± 6,5 Monate. In Kohorte B überlebten Patienten mit 53 ± 7,2 Monaten signifikant länger (p = 0,03). In der univariaten Analyse hatten das lokale Tumorstadium, der Resektionsgrad, die Anzahl der befallenen Lymphknoten (LK), der Lymphknotenquotient (LNR) sowie das Auftreten postoperativer Komplikationen einen Einfluss auf das Überleben, wohingegen in der multivariaten Analyse nur noch T-Stadium, R-Status und LNR als unabhängige Prognosefaktoren galten. SCHLUSSFOLGERUNG:Patienten, die sich einer onkologischen Ösophagusresektion unterziehen, sind heutzutage älter als noch vor einigen Jahren. Die frühzeitigere Tumordiagnose, eine radikalere Operationstechnik mit radikalerer Lymphknotendissektion und weniger Anastomoseninsuffizienzen sowie eine verbesserte perioperative Medizin scheinen diesen demografischen Nachteil zu kompensieren. Die größte prognostische Bedeutung beim Ösophaguskarzinom hat die LNR.

journal_name

Zentralbl Chir

authors

Lingohr P,Zender J,van Beekum C,Dohmen J,Matthaei H,Schaefer N,Kalff JC,Vilz TO

doi

10.1055/s-0043-119892

subject

Has Abstract

pub_date

2018-04-01 00:00:00

pages

171-180

issue

2

eissn

0044-409X

issn

1438-9592

journal_volume

143

pub_type

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