The association between thoracic sarcopenia and survival is gender specific in early-stage lung cancer

Sarcopenia, as measured at the 3rd lumbar (L3) level, has been shown to prognosticate survival in cancer patients. However, many patients with early-stage non-small cell lung cancer (NSCLC) do not undergo abdominal imaging. We hypothesized that preoperative thoracic sarcopenia is associated with sur...

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Veröffentlicht in:Journal of thoracic disease 2022-11, Vol.14 (11), p.4256-4265
Hauptverfasser: Wakefield, Connor J, Lund, Nicholas, Coughlin, Julia, Karush, Justin M, Geissen, Nicole, Alex, Gillian, Liptay, Michael J, Borgia, Jeffrey A, Shah, Palmi, Seder, Christopher W
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container_end_page 4265
container_issue 11
container_start_page 4256
container_title Journal of thoracic disease
container_volume 14
creator Wakefield, Connor J
Lund, Nicholas
Coughlin, Julia
Karush, Justin M
Geissen, Nicole
Alex, Gillian
Liptay, Michael J
Borgia, Jeffrey A
Shah, Palmi
Seder, Christopher W
description Sarcopenia, as measured at the 3rd lumbar (L3) level, has been shown to prognosticate survival in cancer patients. However, many patients with early-stage non-small cell lung cancer (NSCLC) do not undergo abdominal imaging. We hypothesized that preoperative thoracic sarcopenia is associated with survival in patients undergoing lung resection for early-stage NSCLC. Patients who underwent anatomic resection for NSCLC between 2010-2019 were retrospectively identified. Exclusion criteria included induction therapy, less than 90 days of follow-up, and absence of computed tomography (CT) imaging. Cross sectional skeletal muscle area was calculated at the fifth thoracic vertebra (T5), twelfth thoracic vertebra (T12), and L3 level. Gender-specific lowest quartile values and previously defined values were used to define sarcopenia. Overall survival and disease-free survival were assessed using the Kaplan-Meier method. Overall, 221 patients met inclusion criteria with a median body mass index (BMI) of 26.5 kg/m [interquartile range (IQR), 23.3-29.9 kg/m ], age of 69 years (IQR, 62.4-74.9 years), and follow-up of 46.9 months (IQR, 25.0-70.7 months). At the T5 level, sarcopenic males demonstrated worse overall survival [median 41.0 (IQR, 13.8-53.7) 42.0 (IQR, 23.1-55.1) months, P=0.023] and disease-free survival [median 15.8 (IQR, 8.4-30.78) 34.8 (IQR, 20.1-50.5) months, P=0.007] when compared to non-sarcopenic males. There was no difference in survival between sarcopenic and non-sarcopenic females when assessed at T5. Sarcopenia at T12 or L3 was associated with worse overall survival (P
doi_str_mv 10.21037/jtd-22-273
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However, many patients with early-stage non-small cell lung cancer (NSCLC) do not undergo abdominal imaging. We hypothesized that preoperative thoracic sarcopenia is associated with survival in patients undergoing lung resection for early-stage NSCLC. Patients who underwent anatomic resection for NSCLC between 2010-2019 were retrospectively identified. Exclusion criteria included induction therapy, less than 90 days of follow-up, and absence of computed tomography (CT) imaging. Cross sectional skeletal muscle area was calculated at the fifth thoracic vertebra (T5), twelfth thoracic vertebra (T12), and L3 level. Gender-specific lowest quartile values and previously defined values were used to define sarcopenia. Overall survival and disease-free survival were assessed using the Kaplan-Meier method. Overall, 221 patients met inclusion criteria with a median body mass index (BMI) of 26.5 kg/m [interquartile range (IQR), 23.3-29.9 kg/m ], age of 69 years (IQR, 62.4-74.9 years), and follow-up of 46.9 months (IQR, 25.0-70.7 months). At the T5 level, sarcopenic males demonstrated worse overall survival [median 41.0 (IQR, 13.8-53.7) 42.0 (IQR, 23.1-55.1) months, P=0.023] and disease-free survival [median 15.8 (IQR, 8.4-30.78) 34.8 (IQR, 20.1-50.5) months, P=0.007] when compared to non-sarcopenic males. There was no difference in survival between sarcopenic and non-sarcopenic females when assessed at T5. Sarcopenia at T12 or L3 was associated with worse overall survival (P&lt;0.05). Sarcopenia at T5 is associated with worse survival in males, but not females. 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However, many patients with early-stage non-small cell lung cancer (NSCLC) do not undergo abdominal imaging. We hypothesized that preoperative thoracic sarcopenia is associated with survival in patients undergoing lung resection for early-stage NSCLC. Patients who underwent anatomic resection for NSCLC between 2010-2019 were retrospectively identified. Exclusion criteria included induction therapy, less than 90 days of follow-up, and absence of computed tomography (CT) imaging. Cross sectional skeletal muscle area was calculated at the fifth thoracic vertebra (T5), twelfth thoracic vertebra (T12), and L3 level. Gender-specific lowest quartile values and previously defined values were used to define sarcopenia. Overall survival and disease-free survival were assessed using the Kaplan-Meier method. 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However, many patients with early-stage non-small cell lung cancer (NSCLC) do not undergo abdominal imaging. We hypothesized that preoperative thoracic sarcopenia is associated with survival in patients undergoing lung resection for early-stage NSCLC. Patients who underwent anatomic resection for NSCLC between 2010-2019 were retrospectively identified. Exclusion criteria included induction therapy, less than 90 days of follow-up, and absence of computed tomography (CT) imaging. Cross sectional skeletal muscle area was calculated at the fifth thoracic vertebra (T5), twelfth thoracic vertebra (T12), and L3 level. Gender-specific lowest quartile values and previously defined values were used to define sarcopenia. Overall survival and disease-free survival were assessed using the Kaplan-Meier method. 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title The association between thoracic sarcopenia and survival is gender specific in early-stage lung cancer
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