Survival after surgery for oesophageal cancer: a population-based study

Ioannis Rouvelas ¹, Wenyi Zeng , Mats Lindblad

⁰Unit of Oesophageal and Gastric Research, Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden.

The Lancet. Oncology +

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November 1, 2005

View abstract on PubMed

Summary

Survival rates for esophageal cancer surgery have significantly improved since 1987, with better outcomes likely due to advancements in surgical techniques rather than patient or tumor characteristics.

Area Of Science

Oncology
Surgical Oncology
Public Health

Background

Esophageal cancer resection is the only potentially curative treatment.
Few population-based studies have assessed survival post-surgery.
The study investigates survival trends following esophageal cancer surgery since 1987.

Purpose Of The Study

To evaluate the improvement in survival rates after esophageal cancer surgery.
To identify factors influencing survival post-esophageal resection.
To determine if surgical advancements have impacted patient outcomes.

Main Methods

A nationwide cohort of 764 Swedish patients undergoing esophageal cancer resection between 1987 and 2000 was analyzed.
Patient follow-up extended to 2004 using national registers for mortality and population data.
Cox proportional-hazards regression was used to calculate adjusted hazard ratios for death, controlling for patient and tumor variables.

Main Results

30-day mortality post-surgery decreased from 10.1% (1987-91) to 4.9% (1997-2000).
Long-term survival rates showed a marked increase across all follow-up periods (1, 3, and 5 years) in later cohorts.
Adjusted hazard ratios for death significantly decreased in the 1992-96 and 1997-2000 periods compared to the baseline.

Conclusions

Survival after esophageal cancer surgery has substantially improved since 1987.
The observed survival improvements are not attributable to changes in patient or tumor characteristics.
Enhanced surgical techniques are likely the primary driver of improved outcomes in esophageal cancer resection.

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