human
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: Introduction The aim of this study was to assess the effects of preoperative pulmonary rehabilitation ( PPR ) on preoperative clinical status changes in patients with chronic obstructive pulmonary disease ( COPD ) and non-small cell lung cancer ( NSCLC ) , and net effects of PPR and cancer resection on residual pulmonary function and functional capacity . Material and methods This prospect i ve single group study included 83 COPD patients ( 62 ±8 years , 85 % males , FEV1 = 1844 ±618 ml , Tiffeneau index = 54 ±9 % ) with NSCLC , on 2–4-week PPR , before resection . Pulmonary function , and functional and symptom status were evaluated by  spirometry , 6-minute walking distance ( 6MWD ) and Borg scale , on admission , after PPR and after surgery . Results Following PPR significant improvement was registered in the majority of spirometry parameters ( FEV1 by 374 ml , p < 0.001 ; VLC by 407 ml , p < 0.001 ; FEF50 by 3 % , p = 0.003 ) , 6MWD ( for 56 m , p < 0.001 ) and dyspnoeal symptoms ( by 1.0 Borg unit , p < 0.001 ) . A positive correlation was identified between preoperative increments of FEV1 and 6MWD ( r s = 0.503 , p = 0.001 ) . Negative correlations were found between basal FEV1 and its percentage increment ( r s = –0.479 , p = 0.001 ) and between basal 6MWD and its percentage change ( r s = –0.603 , p < 0.001 ) during PPR . Compared to basal values , after resection a significant reduction of most spirometry parameters and 6MWD were recorded , while Tiffeneau index , FEF25 and dyspnoea severity remained stable ( p = NS ) . Conclusions Preoperative pulmonary rehabilitation significantly enhances clinical status of COPD patients before NSCLC resection . Preoperative increase of exercise tolerance was the result of pulmonary function improvement during PPR . The beneficial effects of PPR were most emphasized in patients with initially the worst pulmonary function and the weakest functional capacity BACKGROUND The impact of short-term preoperative pulmonary rehabilitation on exercise capacity of patients with chronic obstructive pulmonary disease undergoing lobectomy for non-small cell lung cancer is evaluated . METHODS A prospect i ve observational study was design ed . Inclusion criteria consisted of an indication to lung resection because of a clinical stage I or II non-small cell lung cancer and a chronic obstructive disease on preoperative pulmonary function test . In such conditions , maximal oxygen consumption by a cardio-pulmonary exercise test was evaluated ; when this result ed as being < or = 15 ml/kg/min a pulmonary rehabilitation programme lasting 4 weeks was considered . Twelve patients fulfilled inclusion criteria , completed the preoperative rehabilitation programme and underwent a new functional evaluation prior to surgery . The postoperative record of these patients was collected . RESULTS On completion of pulmonary rehabilitation , the resting pulmonary function test and diffuse lung capacity of patients was unchanged , whereas the exercise performance was found to have significantly improved ; the mean increase in maximal oxygen consumption proved to be at 2.8 ml/kg/min ( p<0.01 ) . Eleven patients underwent lobectomy ; no postoperative mortality was noted and mean hospital stay was 17 days . Postoperative pulmonary complication was recorded in 8 patients . CONCLUSIONS Short-term preoperative pulmonary rehabilitation could improve the exercise capacity of patients with chronic obstructive pulmonary disease who are c and i date s for lung resection for non-small cell lung cancer STUDY OBJECTIVES The study evaluated the impact of the additional imposed work of breathing ( WBimp ) generated by two different spirometers on postoperative incentive spirometry performance in patients at high risk and moderate risk for postoperative pulmonary complications ( PPCs ) . Additionally , we investigated whether maximal inspiratory pressure ( PImax ) is an easy estimate of the WBimp imposed by incentive spirometers . DESIGN Prospect i ve , r and omized , single-blind clinical trial . SETTING ICU of a university hospital . INTERVENTIONS AND MEASUREMENTS Thirty male patients were assigned to a group at high risk for PPCs ( group A ; inspiratory capacity [ IC ] , < 1.6 L ) or to a group at moderate risk for PPCs ( group B ; IC , 1.6 to 2.5 L ) after upper-abdominal , thoracic , or two-cavity surgery . On the first or second postoperative day WBimp , IC , and PImax were recorded without spirometers ( baseline ) and during incentive spirometry with the Mediflo spirometer ( Medimex ; Hamburg , Germany ) ( high WBimp ) and the Coach spirometer ( Kendall ; Neustadt , Germany ) ( low WBimp ) using a pneumotachograph . In group A , the baseline and the ICs for both spirometers only differed slightly . In group B , the IC was significantly reduced for the Mediflo ( p < 0.05 ) , which imposed a WBimp twice as high as the Coach ( p < 0.01 ) . PImax was significantly increased for both the Mediflo and the Coach ( p < 0.01 ) . PImax was positively correlated with WBimp ( r = 0.8 ) . CONCLUSIONS Incentive spirometers differ considerably in their additional Wbimp with a potential impact on the efficacy of postoperative incentive spirometry performance . PImax might be an easy clinical estimate for the WBimp during incentive spirometry . Incentive spirometers with low WBimp permit increased maximal sustained inspiration and , thus , enhanced incentive spirometry performance , and , therefore , it might be more suitable for use in postoperative respiratory care Background Postoperative pulmonary complications ( PPC ) are the most frequently observed complications following lung resection , of which pneumonia and atelectasis are the most common . PPCs have a significant clinical and economic impact associated with increased observed number of deaths , morbidity , length of stay and associated cost . The aim of this study was to assess the incidence and impact of PPCs and to identify potentially modifiable independent risk factors . Methods A prospect i ve observational study was carried out on all patients following lung resection via thoracotomy in a regional thoracic centre over 13 months .  PPC was assessed using a scoring system based on chest x-ray , raised white cell count , fever , microbiology , purulent sputum and oxygen saturations . Results Thirty-four of 234 subjects ( 14.5 % ) had clinical evidence of PPC . The PPC patient group had a significantly longer length of stay ( LOS ) in hospital , high dependency unit ( HDU ) LOS , higher frequency of intensive care unit ( ITU ) admission and a higher number of hospital deaths . Older patients , body mass index ( BMI ) ≥30 kg/m2 , preoperative activity < 400 m , American Society of Anesthesiologists ( ASA ) score ≥3 , smoking history , chronic obstructive pulmonary disease ( COPD ) , lower preoperative forced expiratory volume in 1 s ( FEV1 ) and predicted postoperative ( PPO ) FEV1 were all significantly ( p<0.05 ) associated with PPC on univariate analysis . Multivariate analysis confirmed that age > 75 years , BMI ≥30 kg/m2 , ASA ≥3 , smoking history and COPD were significant independent risk factors in the development of PPC ( p<0.05 ) . Conclusion The clinical impact of PPCs is marked . Significant independent preoperative risk factors have been identified in current clinical practice . Potentially modifiable risk factors include BMI , smoking status and COPD . The impact of targeted therapy requires further evaluation OBJECTIVE The purpose of this study was to investigate the impact of pulmonary rehabilitation on surgical morbidity and lung function in lung cancer patients with chronic obstructive pulmonary disease ( COPD ) . METHODS Prospect ively , 22 lung cancer patients with COPD who underwent lobectomy between 2000 and 2003 were enrolled for this study as a rehabilitation group (  Rehab . Group ) . The criteria of COPD were preoperative forced expiratory volume in 1 second (FEV1)/forced vital capacity ( FVC ) < or = 70 % and more than 50 % of low attenuation area in a computed tomography . Preoperatively patients performed aggressive pulmonary exercise for two weeks and received chest physiotherapy postoperatively .  As a historical control , 60 patients with lung cancer who fulfilled the same criteria but did not receive rehabilitation between 1995 and 1999 ( control group ) were entered in this study . RESULTS Patient background s were all equivalent between the two groups . However , FEV1 and FEV1/FVC were significantly lower in the Rehab . Group ( p < 0.05 ) . Prolonged oxygen supplement and tracheostomy tended to be more frequent in the control group . The ratio of actual postoperative to predicted postoperative FEV1 was significantly better in the Rehab . Group ( p = 0.047 ) . Furthermore , postoperative hospital stay was significantly longer in the control group ( p = 0.0003 ) . CONCLUSION Despite lower FEV1 and FEV1/FVC in the Rehab . Group , postoperative pulmonary complications and long hospital stay could be effectively prevented and FEV1 was well preserved by rehabilitation and physiotherapy Background Systemic inflammation plays an important role in the initiation , promotion , and progression of lung carcinogenesis . In patients with non-small cell lung cancer ( NSCLC ) , fibrinogen levels correlate with neoplasia . Here we compared the effects of pulmonary rehabilitation ( PR ) with chest physical therapy ( CPT ) on fibrinogen and albumin levels in patients with LC and previous inflammatory lung disease awaiting lung resection . Methods We conducted a r and omized clinical trial with 24 patients who were r and omly assigned to Pulmonary Rehabilitation ( PR ) and Chest Physical Therapy ( CPT ) groups . Each group underwent training 5 days weekly for 4 weeks . All patients were assessed before and after four weeks of training through clinical assessment , measurement of fibrinogen and albumin levels , spirometry , 6-minute Walk Test ( 6MWT ) , quality of life survey , and anxiety and depression scale . PR involved strength and endurance training , and CPT involved lung expansion techniques . Both groups attended educational classes . Results A mixed between-within subjects analysis of variance ( ANOVA ) revealed a significant interaction between time ( before and after intervention ) and group ( PR vs. CPT ) on fibrinogen levels ( F(1 , 22 ) = 0.57 , p < 0.0001 ) and a significant main effect of time ( F(1 , 22 ) = 0.68 , p = 0.004 ) . Changes in albumin levels were not statistically significant relative to the interaction effect between time and group ( F(1 , 22 ) = 0.96 , p = 0.37 ) nor the main effects of time ( F(1 , 22 ) = 1.00 , p = 1.00 ) and group ( F(1 , 22 ) = 0.59 , p = 0.45 ) . A mixed between-within subjects ANOVA revealed significant interaction effects between time and group for the peak work rate of the unsupported upper limb exercise ( F(1 , 22 ) = 0.77 , p = 0.02 ) , endurance time ( F(1 , 22 ) = 0.60 , p = 0.001 ) , levels of anxiety ( F(1 , 22 ) = 0.60 , p = 0.002 ) and depression ( F(1 , 22 ) = 0.74 , p = 0.02 ) , and the SF-36 physical component summary ( F(1 , 22 ) = 0.83 , p = 0.07 ) . Conclusion PR reduced serum fibrinogen levels , improved functional parameters , and quality of life of patients with LC and inflammatory lung disease awaiting lung resection . Trial registration Current Controlled Trials RBR-3nm5bv OBJECTIVES The aim of the study was to develop a multistr and ed pragmatic rehabilitation programme for operable lung cancer patients , that looks into feasibility , process indicators , outcome measures , local adaptability , compliance and potential cost benefit . METHODS An outpatient-based complex intervention , rehabilitation for operated lung cancer ( ROC ) programme , was developed to optimize physical status , prepare for the inpatient journey and support through recovery after surgery . It includes exercise classes , smoking cessation , dietary advice and patient education and was tested in an enriched cohort study within a regional thoracic unit over 18 months . RESULTS A multistr and ed pragmatic rehabilitation programme pre- and post-surgery is feasible . Fifty-eight patients received the intervention and 305 received st and ard care . Both groups were matched for age , lung function comorbidity and type of surgery . Patients in the intervention group attended exercise classes twice a week until surgery , which was not delayed . Patients attended four sessions presurgery ( range 1 - 15 ) , result ing in an improvement of 20 m ( range -73 - 195 , P = 0.001 ) in a 6-min walk test and 0.66 l in forced expiratory volume in 1 s ( range -1.85 from 1.11 , P = 0.009 ) from baseline to presurgery . Fifty-four percentage of smokers in the intervention group stopped smoking . Sixteen percentage of patients were identified as being at risk of malnourishment and received nutr 
    Output:
    
agent
In conclusion , preoperative exercise-based training improves pulmonary function before surgery and reduces in-hospital length of stay and postoperative complications after lung resection surgery for lung cancer
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: Introduction The aim of this study was to assess the effects of preoperative pulmonary rehabilitation ( PPR ) on preoperative clinical status changes in patients with chronic obstructive pulmonary disease ( COPD ) and non-small cell lung cancer ( NSCLC ) , and net effects of PPR and cancer resection on residual pulmonary function and functional capacity . Material and methods This prospect i ve single group study included 83 COPD patients ( 62 ±8 years , 85 % males , FEV1 = 1844 ±618 ml , Tiffeneau index = 54 ±9 % ) with NSCLC , on 2–4-week PPR , before resection . Pulmonary function , and functional and symptom status were evaluated by  spirometry , 6-minute walking distance ( 6MWD ) and Borg scale , on admission , after PPR and after surgery . Results Following PPR significant improvement was registered in the majority of spirometry parameters ( FEV1 by 374 ml , p < 0.001 ; VLC by 407 ml , p < 0.001 ; FEF50 by 3 % , p = 0.003 ) , 6MWD ( for 56 m , p < 0.001 ) and dyspnoeal symptoms ( by 1.0 Borg unit , p < 0.001 ) . A positive correlation was identified between preoperative increments of FEV1 and 6MWD ( r s = 0.503 , p = 0.001 ) . Negative correlations were found between basal FEV1 and its percentage increment ( r s = –0.479 , p = 0.001 ) and between basal 6MWD and its percentage change ( r s = –0.603 , p < 0.001 ) during PPR . Compared to basal values , after resection a significant reduction of most spirometry parameters and 6MWD were recorded , while Tiffeneau index , FEF25 and dyspnoea severity remained stable ( p = NS ) . Conclusions Preoperative pulmonary rehabilitation significantly enhances clinical status of COPD patients before NSCLC resection . Preoperative increase of exercise tolerance was the result of pulmonary function improvement during PPR . The beneficial effects of PPR were most emphasized in patients with initially the worst pulmonary function and the weakest functional capacity BACKGROUND The impact of short-term preoperative pulmonary rehabilitation on exercise capacity of patients with chronic obstructive pulmonary disease undergoing lobectomy for non-small cell lung cancer is evaluated . METHODS A prospect i ve observational study was design ed . Inclusion criteria consisted of an indication to lung resection because of a clinical stage I or II non-small cell lung cancer and a chronic obstructive disease on preoperative pulmonary function test . In such conditions , maximal oxygen consumption by a cardio-pulmonary exercise test was evaluated ; when this result ed as being < or = 15 ml/kg/min a pulmonary rehabilitation programme lasting 4 weeks was considered . Twelve patients fulfilled inclusion criteria , completed the preoperative rehabilitation programme and underwent a new functional evaluation prior to surgery . The postoperative record of these patients was collected . RESULTS On completion of pulmonary rehabilitation , the resting pulmonary function test and diffuse lung capacity of patients was unchanged , whereas the exercise performance was found to have significantly improved ; the mean increase in maximal oxygen consumption proved to be at 2.8 ml/kg/min ( p<0.01 ) . Eleven patients underwent lobectomy ; no postoperative mortality was noted and mean hospital stay was 17 days . Postoperative pulmonary complication was recorded in 8 patients . CONCLUSIONS Short-term preoperative pulmonary rehabilitation could improve the exercise capacity of patients with chronic obstructive pulmonary disease who are c and i date s for lung resection for non-small cell lung cancer STUDY OBJECTIVES The study evaluated the impact of the additional imposed work of breathing ( WBimp ) generated by two different spirometers on postoperative incentive spirometry performance in patients at high risk and moderate risk for postoperative pulmonary complications ( PPCs ) . Additionally , we investigated whether maximal inspiratory pressure ( PImax ) is an easy estimate of the WBimp imposed by incentive spirometers . DESIGN Prospect i ve , r and omized , single-blind clinical trial . SETTING ICU of a university hospital . INTERVENTIONS AND MEASUREMENTS Thirty male patients were assigned to a group at high risk for PPCs ( group A ; inspiratory capacity [ IC ] , < 1.6 L ) or to a group at moderate risk for PPCs ( group B ; IC , 1.6 to 2.5 L ) after upper-abdominal , thoracic , or two-cavity surgery . On the first or second postoperative day WBimp , IC , and PImax were recorded without spirometers ( baseline ) and during incentive spirometry with the Mediflo spirometer ( Medimex ; Hamburg , Germany ) ( high WBimp ) and the Coach spirometer ( Kendall ; Neustadt , Germany ) ( low WBimp ) using a pneumotachograph . In group A , the baseline and the ICs for both spirometers only differed slightly . In group B , the IC was significantly reduced for the Mediflo ( p < 0.05 ) , which imposed a WBimp twice as high as the Coach ( p < 0.01 ) . PImax was significantly increased for both the Mediflo and the Coach ( p < 0.01 ) . PImax was positively correlated with WBimp ( r = 0.8 ) . CONCLUSIONS Incentive spirometers differ considerably in their additional Wbimp with a potential impact on the efficacy of postoperative incentive spirometry performance . PImax might be an easy clinical estimate for the WBimp during incentive spirometry . Incentive spirometers with low WBimp permit increased maximal sustained inspiration and , thus , enhanced incentive spirometry performance , and , therefore , it might be more suitable for use in postoperative respiratory care Background Postoperative pulmonary complications ( PPC ) are the most frequently observed complications following lung resection , of which pneumonia and atelectasis are the most common . PPCs have a significant clinical and economic impact associated with increased observed number of deaths , morbidity , length of stay and associated cost . The aim of this study was to assess the incidence and impact of PPCs and to identify potentially modifiable independent risk factors . Methods A prospect i ve observational study was carried out on all patients following lung resection via thoracotomy in a regional thoracic centre over 13 months .  PPC was assessed using a scoring system based on chest x-ray , raised white cell count , fever , microbiology , purulent sputum and oxygen saturations . Results Thirty-four of 234 subjects ( 14.5 % ) had clinical evidence of PPC . The PPC patient group had a significantly longer length of stay ( LOS ) in hospital , high dependency unit ( HDU ) LOS , higher frequency of intensive care unit ( ITU ) admission and a higher number of hospital deaths . Older patients , body mass index ( BMI ) ≥30 kg/m2 , preoperative activity < 400 m , American Society of Anesthesiologists ( ASA ) score ≥3 , smoking history , chronic obstructive pulmonary disease ( COPD ) , lower preoperative forced expiratory volume in 1 s ( FEV1 ) and predicted postoperative ( PPO ) FEV1 were all significantly ( p<0.05 ) associated with PPC on univariate analysis . Multivariate analysis confirmed that age > 75 years , BMI ≥30 kg/m2 , ASA ≥3 , smoking history and COPD were significant independent risk factors in the development of PPC ( p<0.05 ) . Conclusion The clinical impact of PPCs is marked . Significant independent preoperative risk factors have been identified in current clinical practice . Potentially modifiable risk factors include BMI , smoking status and COPD . The impact of targeted therapy requires further evaluation OBJECTIVE The purpose of this study was to investigate the impact of pulmonary rehabilitation on surgical morbidity and lung function in lung cancer patients with chronic obstructive pulmonary disease ( COPD ) . METHODS Prospect ively , 22 lung cancer patients with COPD who underwent lobectomy between 2000 and 2003 were enrolled for this study as a rehabilitation group (  Rehab . Group ) . The criteria of COPD were preoperative forced expiratory volume in 1 second (FEV1)/forced vital capacity ( FVC ) < or = 70 % and more than 50 % of low attenuation area in a computed tomography . Preoperatively patients performed aggressive pulmonary exercise for two weeks and received chest physiotherapy postoperatively .  As a historical control , 60 patients with lung cancer who fulfilled the same criteria but did not receive rehabilitation between 1995 and 1999 ( control group ) were entered in this study . RESULTS Patient background s were all equivalent between the two groups . However , FEV1 and FEV1/FVC were significantly lower in the Rehab . Group ( p < 0.05 ) . Prolonged oxygen supplement and tracheostomy tended to be more frequent in the control group . The ratio of actual postoperative to predicted postoperative FEV1 was significantly better in the Rehab . Group ( p = 0.047 ) . Furthermore , postoperative hospital stay was significantly longer in the control group ( p = 0.0003 ) . CONCLUSION Despite lower FEV1 and FEV1/FVC in the Rehab . Group , postoperative pulmonary complications and long hospital stay could be effectively prevented and FEV1 was well preserved by rehabilitation and physiotherapy Background Systemic inflammation plays an important role in the initiation , promotion , and progression of lung carcinogenesis . In patients with non-small cell lung cancer ( NSCLC ) , fibrinogen levels correlate with neoplasia . Here we compared the effects of pulmonary rehabilitation ( PR ) with chest physical therapy ( CPT ) on fibrinogen and albumin levels in patients with LC and previous inflammatory lung disease awaiting lung resection . Methods We conducted a r and omized clinical trial with 24 patients who were r and omly assigned to Pulmonary Rehabilitation ( PR ) and Chest Physical Therapy ( CPT ) groups . Each group underwent training 5 days weekly for 4 weeks . All patients were assessed before and after four weeks of training through clinical assessment , measurement of fibrinogen and albumin levels , spirometry , 6-minute Walk Test ( 6MWT ) , quality of life survey , and anxiety and depression scale . PR involved strength and endurance training , and CPT involved lung expansion techniques . Both groups attended educational classes . Results A mixed between-within subjects analysis of variance ( ANOVA ) revealed a significant interaction between time ( before and after intervention ) and group ( PR vs. CPT ) on fibrinogen levels ( F(1 , 22 ) = 0.57 , p < 0.0001 ) and a significant main effect of time ( F(1 , 22 ) = 0.68 , p = 0.004 ) . Changes in albumin levels were not statistically significant relative to the interaction effect between time and group ( F(1 , 22 ) = 0.96 , p = 0.37 ) nor the main effects of time ( F(1 , 22 ) = 1.00 , p = 1.00 ) and group ( F(1 , 22 ) = 0.59 , p = 0.45 ) . A mixed between-within subjects ANOVA revealed significant interaction effects between time and group for the peak work rate of the unsupported upper limb exercise ( F(1 , 22 ) = 0.77 , p = 0.02 ) , endurance time ( F(1 , 22 ) = 0.60 , p = 0.001 ) , levels of anxiety ( F(1 , 22 ) = 0.60 , p = 0.002 ) and depression ( F(1 , 22 ) = 0.74 , p = 0.02 ) , and the SF-36 physical component summary ( F(1 , 22 ) = 0.83 , p = 0.07 ) . Conclusion PR reduced serum fibrinogen levels , improved functional parameters , and quality of life of patients with LC and inflammatory lung disease awaiting lung resection . Trial registration Current Controlled Trials RBR-3nm5bv OBJECTIVES The aim of the study was to develop a multistr and ed pragmatic rehabilitation programme for operable lung cancer patients , that looks into feasibility , process indicators , outcome measures , local adaptability , compliance and potential cost benefit . METHODS An outpatient-based complex intervention , rehabilitation for operated lung cancer ( ROC ) programme , was developed to optimize physical status , prepare for the inpatient journey and support through recovery after surgery . It includes exercise classes , smoking cessation , dietary advice and patient education and was tested in an enriched cohort study within a regional thoracic unit over 18 months . RESULTS A multistr and ed pragmatic rehabilitation programme pre- and post-surgery is feasible . Fifty-eight patients received the intervention and 305 received st and ard care . Both groups were matched for age , lung function comorbidity and type of surgery . Patients in the intervention group attended exercise classes twice a week until surgery , which was not delayed . Patients attended four sessions presurgery ( range 1 - 15 ) , result ing in an improvement of 20 m ( range -73 - 195 , P = 0.001 ) in a 6-min walk test and 0.66 l in forced expiratory volume in 1 s ( range -1.85 from 1.11 , P = 0.009 ) from baseline to presurgery . Fifty-four percentage of smokers in the intervention group stopped smoking . Sixteen percentage of patients were identified as being at risk of malnourishment and received nutr 
    Output:
    