Growth Rate of Lung Metastases in Sarcoma Patients
Author Information
Author(s): C. Blomqvist, T. Wiklund, M. Tarkkanen, I. Elomaa, M. Virolainen
Primary Institution: University of Helsinki
Hypothesis
What is the growth rate of lung metastases in patients with bone or soft-tissue sarcoma?
Conclusion
The study found that the median doubling time for lung metastases was 34.9 days, indicating significant variability in growth rates among patients.
Supporting Evidence
- The median doubling time was 34.9 days.
- Significant variation in growth rates was observed between patients.
- Measurements were performed by two independent investigators to assess reproducibility.
- Only patients with measurable metastases were included in the study.
Takeaway
Doctors measured how fast lung tumors grow in patients with certain types of cancer, and they found that some tumors grow much faster than others.
Methodology
The study involved measuring the volume doubling time of lung metastases from chest x-rays in 21 patients over a follow-up period of 14 to 819 days.
Potential Biases
There was a significant discrepancy in doubling time estimates between two independent observers.
Limitations
Only a minority of patients had measurable metastases, and the study relied on measurements from chest x-rays, which may have limitations.
Participant Demographics
The mean age of participants was 47 years, with 9 females and 12 males.
Statistical Information
P-Value
0.0001
Confidence Interval
3.9 to 352 days
Statistical Significance
p<0.05
Want to read the original?
Access the complete publication on the publisher's website