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Age and disease stage predict long-term survival in elderly lung cancer patients
AT THE STS ANNUAL MEETING
HOUSTON – Although certain medical factors predict long-term survival in patients over age 65 years with lung cancer, advanced age and disease stage are especially strong predictors, results from a large analysis of national data demonstrated.
The findings, which were presented by Mark Onaitis, MD, at the annual meeting of the Society of Thoracic Surgeons, come from a novel effort to pair Medicare data with files from the STS General Thoracic Surgery Database (GTSD).
For the current study, he and his associates linked GTSD data to Medicare data on 29,899 patients who underwent lung cancer resection from 2002 to 2013. They used Cox proportional hazards modeling to create a long-term survival model and used statistically significant univariate factors and known clinical predictors of outcome to perform variable selection.
Dr. Onaitis reported that the median age of patients was 73 years and that 52% were female. Of the 29,899 patients, 805 had a missing pathologic stage. Of the 29,094 patients not missing a pathologic stage, 69% were stage I, 18% stage II, 11% stage III, and 2% stage IV. Two-thirds of patients (66%) underwent lobectomy, followed by wedge resection (17%), segmentectomy (7%), bilobectomy (3%), pneumonectomy (3%), and sleeve lobectomy (1%). A thoracoscopic approach was performed in nearly half of resections (47%).
Cox analysis revealed the following strong negative predictors of long-term survival: having stage III or IV-V disease (hazard ratio, 1.23 and 1.37, respectively), being age 70-74 (HR, 1.19), 75-80 (HR, 1.40), or 80 and older (HR, 1.90).
After controlling for disease stage, the following procedures were associated with increased hazard of death, compared with lobectomy: wedge resection (HR, 1.22), segmentectomy (HR, 1.10), bilobectomy (HR, 1.30), and pneumonectomy (HR, 1.58). In addition, video-assisted thoracoscopic surgery was associated with improved long-term survival, compared with thoracotomy (HR, 0.86).
“Given the large number of patients and the excellent quality of the data, it was not surprising that age and stage and known medical conditions affect long-term survival,” Dr. Onaitis commented. “The deleterious effects of sublobar operations and open [as opposed to thoracoscopic or VATS] approach were more pronounced than expected.”
Other modifiable predictive factors include being a past or current smoker (HR, 1.35 and HR, 1.54, respectively) and having a body mass index below 18.5 kg/m2 (HR, 1.58).
Dr. Onaitis acknowledged certain limitations of the study, including its retrospective design. “Because the study involves linkage of STS data to Medicare data, the findings may not be applicable to patients less than 65 years of age,” he added. He reported having no financial disclosures.
AT THE STS ANNUAL MEETING
HOUSTON – Although certain medical factors predict long-term survival in patients over age 65 years with lung cancer, advanced age and disease stage are especially strong predictors, results from a large analysis of national data demonstrated.
The findings, which were presented by Mark Onaitis, MD, at the annual meeting of the Society of Thoracic Surgeons, come from a novel effort to pair Medicare data with files from the STS General Thoracic Surgery Database (GTSD).
For the current study, he and his associates linked GTSD data to Medicare data on 29,899 patients who underwent lung cancer resection from 2002 to 2013. They used Cox proportional hazards modeling to create a long-term survival model and used statistically significant univariate factors and known clinical predictors of outcome to perform variable selection.
Dr. Onaitis reported that the median age of patients was 73 years and that 52% were female. Of the 29,899 patients, 805 had a missing pathologic stage. Of the 29,094 patients not missing a pathologic stage, 69% were stage I, 18% stage II, 11% stage III, and 2% stage IV. Two-thirds of patients (66%) underwent lobectomy, followed by wedge resection (17%), segmentectomy (7%), bilobectomy (3%), pneumonectomy (3%), and sleeve lobectomy (1%). A thoracoscopic approach was performed in nearly half of resections (47%).
Cox analysis revealed the following strong negative predictors of long-term survival: having stage III or IV-V disease (hazard ratio, 1.23 and 1.37, respectively), being age 70-74 (HR, 1.19), 75-80 (HR, 1.40), or 80 and older (HR, 1.90).
After controlling for disease stage, the following procedures were associated with increased hazard of death, compared with lobectomy: wedge resection (HR, 1.22), segmentectomy (HR, 1.10), bilobectomy (HR, 1.30), and pneumonectomy (HR, 1.58). In addition, video-assisted thoracoscopic surgery was associated with improved long-term survival, compared with thoracotomy (HR, 0.86).
“Given the large number of patients and the excellent quality of the data, it was not surprising that age and stage and known medical conditions affect long-term survival,” Dr. Onaitis commented. “The deleterious effects of sublobar operations and open [as opposed to thoracoscopic or VATS] approach were more pronounced than expected.”
Other modifiable predictive factors include being a past or current smoker (HR, 1.35 and HR, 1.54, respectively) and having a body mass index below 18.5 kg/m2 (HR, 1.58).
Dr. Onaitis acknowledged certain limitations of the study, including its retrospective design. “Because the study involves linkage of STS data to Medicare data, the findings may not be applicable to patients less than 65 years of age,” he added. He reported having no financial disclosures.
AT THE STS ANNUAL MEETING
HOUSTON – Although certain medical factors predict long-term survival in patients over age 65 years with lung cancer, advanced age and disease stage are especially strong predictors, results from a large analysis of national data demonstrated.
The findings, which were presented by Mark Onaitis, MD, at the annual meeting of the Society of Thoracic Surgeons, come from a novel effort to pair Medicare data with files from the STS General Thoracic Surgery Database (GTSD).
For the current study, he and his associates linked GTSD data to Medicare data on 29,899 patients who underwent lung cancer resection from 2002 to 2013. They used Cox proportional hazards modeling to create a long-term survival model and used statistically significant univariate factors and known clinical predictors of outcome to perform variable selection.
Dr. Onaitis reported that the median age of patients was 73 years and that 52% were female. Of the 29,899 patients, 805 had a missing pathologic stage. Of the 29,094 patients not missing a pathologic stage, 69% were stage I, 18% stage II, 11% stage III, and 2% stage IV. Two-thirds of patients (66%) underwent lobectomy, followed by wedge resection (17%), segmentectomy (7%), bilobectomy (3%), pneumonectomy (3%), and sleeve lobectomy (1%). A thoracoscopic approach was performed in nearly half of resections (47%).
Cox analysis revealed the following strong negative predictors of long-term survival: having stage III or IV-V disease (hazard ratio, 1.23 and 1.37, respectively), being age 70-74 (HR, 1.19), 75-80 (HR, 1.40), or 80 and older (HR, 1.90).
After controlling for disease stage, the following procedures were associated with increased hazard of death, compared with lobectomy: wedge resection (HR, 1.22), segmentectomy (HR, 1.10), bilobectomy (HR, 1.30), and pneumonectomy (HR, 1.58). In addition, video-assisted thoracoscopic surgery was associated with improved long-term survival, compared with thoracotomy (HR, 0.86).
“Given the large number of patients and the excellent quality of the data, it was not surprising that age and stage and known medical conditions affect long-term survival,” Dr. Onaitis commented. “The deleterious effects of sublobar operations and open [as opposed to thoracoscopic or VATS] approach were more pronounced than expected.”
Other modifiable predictive factors include being a past or current smoker (HR, 1.35 and HR, 1.54, respectively) and having a body mass index below 18.5 kg/m2 (HR, 1.58).
Dr. Onaitis acknowledged certain limitations of the study, including its retrospective design. “Because the study involves linkage of STS data to Medicare data, the findings may not be applicable to patients less than 65 years of age,” he added. He reported having no financial disclosures.
Key clinical point:
Major finding: Strong negative predictors of long-term survival included having stage III or IV-V disease (HR, 1.23 and 1.37, respectively), being age 70-74 (HR, 1.19), 75-80 (HR, 1.40), or 80 and older (HR, 1.90).
Data source: A retrospective analysis of 29,899 patients over age 65 who underwent lung cancer resection from 2002 to 2013.
Disclosures: Dr. Onaitis reported having no financial disclosures.
Study IDs risk factors for ideal timing of stage 2 palliation following Norwood
HOUSTON – The optimal timing of stage 2 palliation after the Norwood operation depends on certain patient-specific risk factors, but in most cases should be done around 3-4 months of age, results from a multi-center study show.
While previous studies have investigated whether early stage-2 palliation (S2P) can be performed without increased post-S2P mortality, the effect of the timing of S2P on post-Norwood mortality remains unknown, Robert “Jake” Jaquiss, MD, said in an interview in advance of the annual meeting of the Society of Thoracic Surgeons.
“There has been a lot of dispute about how early is too early for S2P,” said Dr. Jaquiss, the study’s senior author, who is professor and division chief of pediatric cardiothoracic surgery at the University of Texas Southwestern Medical Center. “That is one of the few things that is in the control of the doctor. Most of the rest of the decisions are based entirely on the condition of the patient and the patient’s specific anatomy. So the timing of S2P is something that we can truly define most always. What we want to find out is, what is the ideal timing? How early is too early? Is there such a thing as too late?”
In an effort to determine the optimal timing of S2P that both minimizes pre-S2P attrition and maximizes long-term post-S2P survival, Dr. Jaquiss and his associates at 19 other institutions evaluated data from 534 neonates diagnosed with left ventricular outflow tract obstruction that precluded adequate systemic cardiac output through the aortic valve who initially underwent a Norwood operation from 2005 to 2016.
S2P was performed in 377 patients (71%) at a mean age of 5.4 months, while 115 (22%) died after Norwood, and the rest underwent biventricular repair or heart transplantation. After S2P, 38 (10%) died, 248 (66%) underwent Fontan, and the rest were alive awaiting Fontan or underwent heart transplantation.
Risk factors for death after Norwood included requiring pre-Norwood extracorporeal membrane oxygenation (P less than .0001), birth weight of less than 2.5 kg (P less than .0001), modified Blalock-Taussig shunt vs. a right ventricle to pulmonary artery conduit (P = .0003), larger baseline right pulmonary artery diameter (P = .0002), smaller baseline mitral valve diameter (P = .0002), smaller baseline tricuspid valve diameter (P = .0001), and nonwhite race (P = .03).
Risk factors for death after S2P included lower oxygen saturation at pre-S2P clinic visit (P = .02), having moderate or severe pre-S2P right ventricular dysfunction (P = .007), younger age at S2P (P = .03), and longer post-Norwood hospital length of stay (P = .03).
The risk-adjusted, 4-year, post-Norwood survival was 72%, with a confidence interval of 67%-75%. When plotted vs. the age at S2P, risk-adjusted, 4-year, post-Norwood survival for the 534 patients was maximized by S2P at 3-6 months of age. At the same time, risk-adjusted, 4-year survival in low-risk infants was compromised only by undergoing S2P earlier than 3 months of age. In high-risk infants, survival was severely compromised, especially when undergoing S2P earlier than 6 months of age.
“The results reinforced intuitions or expectations that most of the investigators already had,” Dr. Jaquiss said. “But we are in an era where evidence-based medicine is much preferable to intuition-based medicine. I’m very confident in the findings we have. I feel more confident in suggesting that we should be planning these surgeries around 3-4 months of age in usual-risk children and also more confident in suggesting that we need to consider transplantation earlier in children who are perceived to be at high risk. There is some hope [by clinicians in] some centers that you can convert a high-risk prognosis to a lower or intermediate risk prognosis by doing the S2P earlier or at some alternative time. Our data suggests that would not be helpful.”
Dr. Jaquiss and Dr. Meza reported having no financial disclosures.
HOUSTON – The optimal timing of stage 2 palliation after the Norwood operation depends on certain patient-specific risk factors, but in most cases should be done around 3-4 months of age, results from a multi-center study show.
While previous studies have investigated whether early stage-2 palliation (S2P) can be performed without increased post-S2P mortality, the effect of the timing of S2P on post-Norwood mortality remains unknown, Robert “Jake” Jaquiss, MD, said in an interview in advance of the annual meeting of the Society of Thoracic Surgeons.
“There has been a lot of dispute about how early is too early for S2P,” said Dr. Jaquiss, the study’s senior author, who is professor and division chief of pediatric cardiothoracic surgery at the University of Texas Southwestern Medical Center. “That is one of the few things that is in the control of the doctor. Most of the rest of the decisions are based entirely on the condition of the patient and the patient’s specific anatomy. So the timing of S2P is something that we can truly define most always. What we want to find out is, what is the ideal timing? How early is too early? Is there such a thing as too late?”
In an effort to determine the optimal timing of S2P that both minimizes pre-S2P attrition and maximizes long-term post-S2P survival, Dr. Jaquiss and his associates at 19 other institutions evaluated data from 534 neonates diagnosed with left ventricular outflow tract obstruction that precluded adequate systemic cardiac output through the aortic valve who initially underwent a Norwood operation from 2005 to 2016.
S2P was performed in 377 patients (71%) at a mean age of 5.4 months, while 115 (22%) died after Norwood, and the rest underwent biventricular repair or heart transplantation. After S2P, 38 (10%) died, 248 (66%) underwent Fontan, and the rest were alive awaiting Fontan or underwent heart transplantation.
Risk factors for death after Norwood included requiring pre-Norwood extracorporeal membrane oxygenation (P less than .0001), birth weight of less than 2.5 kg (P less than .0001), modified Blalock-Taussig shunt vs. a right ventricle to pulmonary artery conduit (P = .0003), larger baseline right pulmonary artery diameter (P = .0002), smaller baseline mitral valve diameter (P = .0002), smaller baseline tricuspid valve diameter (P = .0001), and nonwhite race (P = .03).
Risk factors for death after S2P included lower oxygen saturation at pre-S2P clinic visit (P = .02), having moderate or severe pre-S2P right ventricular dysfunction (P = .007), younger age at S2P (P = .03), and longer post-Norwood hospital length of stay (P = .03).
The risk-adjusted, 4-year, post-Norwood survival was 72%, with a confidence interval of 67%-75%. When plotted vs. the age at S2P, risk-adjusted, 4-year, post-Norwood survival for the 534 patients was maximized by S2P at 3-6 months of age. At the same time, risk-adjusted, 4-year survival in low-risk infants was compromised only by undergoing S2P earlier than 3 months of age. In high-risk infants, survival was severely compromised, especially when undergoing S2P earlier than 6 months of age.
“The results reinforced intuitions or expectations that most of the investigators already had,” Dr. Jaquiss said. “But we are in an era where evidence-based medicine is much preferable to intuition-based medicine. I’m very confident in the findings we have. I feel more confident in suggesting that we should be planning these surgeries around 3-4 months of age in usual-risk children and also more confident in suggesting that we need to consider transplantation earlier in children who are perceived to be at high risk. There is some hope [by clinicians in] some centers that you can convert a high-risk prognosis to a lower or intermediate risk prognosis by doing the S2P earlier or at some alternative time. Our data suggests that would not be helpful.”
Dr. Jaquiss and Dr. Meza reported having no financial disclosures.
HOUSTON – The optimal timing of stage 2 palliation after the Norwood operation depends on certain patient-specific risk factors, but in most cases should be done around 3-4 months of age, results from a multi-center study show.
While previous studies have investigated whether early stage-2 palliation (S2P) can be performed without increased post-S2P mortality, the effect of the timing of S2P on post-Norwood mortality remains unknown, Robert “Jake” Jaquiss, MD, said in an interview in advance of the annual meeting of the Society of Thoracic Surgeons.
“There has been a lot of dispute about how early is too early for S2P,” said Dr. Jaquiss, the study’s senior author, who is professor and division chief of pediatric cardiothoracic surgery at the University of Texas Southwestern Medical Center. “That is one of the few things that is in the control of the doctor. Most of the rest of the decisions are based entirely on the condition of the patient and the patient’s specific anatomy. So the timing of S2P is something that we can truly define most always. What we want to find out is, what is the ideal timing? How early is too early? Is there such a thing as too late?”
In an effort to determine the optimal timing of S2P that both minimizes pre-S2P attrition and maximizes long-term post-S2P survival, Dr. Jaquiss and his associates at 19 other institutions evaluated data from 534 neonates diagnosed with left ventricular outflow tract obstruction that precluded adequate systemic cardiac output through the aortic valve who initially underwent a Norwood operation from 2005 to 2016.
S2P was performed in 377 patients (71%) at a mean age of 5.4 months, while 115 (22%) died after Norwood, and the rest underwent biventricular repair or heart transplantation. After S2P, 38 (10%) died, 248 (66%) underwent Fontan, and the rest were alive awaiting Fontan or underwent heart transplantation.
Risk factors for death after Norwood included requiring pre-Norwood extracorporeal membrane oxygenation (P less than .0001), birth weight of less than 2.5 kg (P less than .0001), modified Blalock-Taussig shunt vs. a right ventricle to pulmonary artery conduit (P = .0003), larger baseline right pulmonary artery diameter (P = .0002), smaller baseline mitral valve diameter (P = .0002), smaller baseline tricuspid valve diameter (P = .0001), and nonwhite race (P = .03).
Risk factors for death after S2P included lower oxygen saturation at pre-S2P clinic visit (P = .02), having moderate or severe pre-S2P right ventricular dysfunction (P = .007), younger age at S2P (P = .03), and longer post-Norwood hospital length of stay (P = .03).
The risk-adjusted, 4-year, post-Norwood survival was 72%, with a confidence interval of 67%-75%. When plotted vs. the age at S2P, risk-adjusted, 4-year, post-Norwood survival for the 534 patients was maximized by S2P at 3-6 months of age. At the same time, risk-adjusted, 4-year survival in low-risk infants was compromised only by undergoing S2P earlier than 3 months of age. In high-risk infants, survival was severely compromised, especially when undergoing S2P earlier than 6 months of age.
“The results reinforced intuitions or expectations that most of the investigators already had,” Dr. Jaquiss said. “But we are in an era where evidence-based medicine is much preferable to intuition-based medicine. I’m very confident in the findings we have. I feel more confident in suggesting that we should be planning these surgeries around 3-4 months of age in usual-risk children and also more confident in suggesting that we need to consider transplantation earlier in children who are perceived to be at high risk. There is some hope [by clinicians in] some centers that you can convert a high-risk prognosis to a lower or intermediate risk prognosis by doing the S2P earlier or at some alternative time. Our data suggests that would not be helpful.”
Dr. Jaquiss and Dr. Meza reported having no financial disclosures.
Key clinical point:
Major finding: When plotted vs. the age at stage 2 palliation, risk-adjusted, 4-year, post-Norwood survival for the 534 patients was maximized by S2P at 3-6 months of age.
Data source: A multi-institutional analysis of 534 neonates diagnosed with left ventricular outflow tract obstruction that precluded adequate systemic cardiac output through the aortic valve who initially underwent a Norwood operation from 2005 to 2016.
Disclosures: Dr. Jaquiss and Dr. Meza reported having no financial disclosures.