BMC Pulmonary Medicine最新文献

{"title":"Association between C-reactive protein to albumin ratio and chronic obstructive pulmonary disease: a cross-sectional study.","authors":"Ting Ao, Yingxiu Huang, Peng Zhen, Ming Hu","doi":"10.1186/s12890-024-03469-w","DOIUrl":"10.1186/s12890-024-03469-w","url":null,"abstract":"<p><strong>Background: </strong>Chronic obstructive pulmonary disease (COPD) is a widespread condition that significantly endangers human health. The C-reactive protein to albumin ratio (CAR) has been utilized as an important marker for the occurrence and development of various diseases. Nevertheless, the association between CAR and COPD remains inadequately explored. This research aimed to examine the link between the CAR and COPD.</p><p><strong>Methods: </strong>This cross-sectional study examined data from adult participants in the National Health and Nutrition Examination Survey between 1999 and 2010. The identification of COPD relied on data obtained directly from self-reported information. Logistic regression analysis was used to estimate the odds ratio (OR) and 95% confidence interval (CI) for the association between CAR and COPD. Additionally, subgroup and sensitivity analyses were performed to evaluate the stability of the observed relationship.</p><p><strong>Results: </strong>The study comprised 24,627 participants, among whom 1,809 had COPD. After adjusting for potential confounders, CAR was found to be associated with COPD (OR 1.37; 95% CI, 1.12-1.69; P = 0.003). In the analysis comparing individuals in the lowest CAR tertile (T1) with those in the highest, the adjusted OR for COPD was 1.39 (95% CI, 1.17-1.65; P < 0.001). Validation through subgroup and sensitivity analyses further strengthened the stability and consistency of the study's findings.</p><p><strong>Conclusion: </strong>Elevated levels of the CAR were correlated with an increased risk of COPD.</p><p><strong>Clinical trial number: </strong>not applicable.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"25 1","pages":"1"},"PeriodicalIF":2.6,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11697920/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142920453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between the prognosis and comorbidity of active cancer in chronic thromboembolic pulmonary hypertension.","authors":"Hiroyuki Fujii, Yu Taniguchi, Yuichi Tamura, Miki Sakamoto, Sachiyo Yoneda, Kenichi Yanaka, Noriaki Emoto, Ken-Ichi Hirata, Hiromasa Otake","doi":"10.1186/s12890-024-03460-5","DOIUrl":"10.1186/s12890-024-03460-5","url":null,"abstract":"<p><strong>Background: </strong>Prognosis of chronic thromboembolic pulmonary hypertension (CTEPH) has improved after the availability of balloon pulmonary angioplasty (BPA) and approved drugs. However, the clinical effects of cancer, which is one of the associated medical conditions of CTEPH, remain unclear. We aimed to investigate prognosis in patients with CTEPH and comorbid cancer.</p><p><strong>Methods: </strong>Between January 2011 and December 2022, data of 264 consecutive patients with CTEPH who were treated with pulmonary endarterectomy, BPA, or medical therapy were retrospectively analyzed. The patients were allocated, based on the comorbidity of cancer as of December 2022, into the cancer (n = 47) and non-cancer (n = 217) groups. In the cancer group, active and non-active cancers were identified in 30 (64%) and 17 (36%) patients, respectively.</p><p><strong>Results: </strong>The baseline characteristics, hemodynamics, and treatments were similar between the groups. More than half of the cancer were diagnosed within two years before or after CTEPH diagnosis. Twenty-seven patients died during the study period. Among them, 13 (48%) and 7 (26%) died of cancer and right heart failure, respectively. The 5-year survival rate was lower in the cancer group than in the non-cancer group (67.8% vs. 94.5%, p < 0.001). In the active cancer group, the 5-year survival rate was also lower than that in the non-active cancer and non-cancer groups (52.0% vs. 99.5%, p < 0.001 and 52.0% vs. 92.3%, p < 0.001, respectively). Multivariate Cox hazard analysis revealed that hemodialysis (p < 0.001) and cancer (p < 0.001) were independently associated with poor survival.</p><p><strong>Conclusion: </strong>Patients with CTEPH rarely die of right heart failure, even if hemodynamically severe at diagnosis in the modern management era. However, patients with CTEPH frequently have comorbid cancer, which may be a strong prognostic factor.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"25 1","pages":"2"},"PeriodicalIF":2.6,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11697631/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142920456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of transbronchial biopsy and frequency of pneumothorax in lung transplant recipients: single center experience.","authors":"Ertan Sarıbaş, Ayse Nigar Halis, Sevinç Çıtak, Gonca Gecmen, Ahmet Murat Kazan, Musatafa Vayvada, Murat Ersin Cardak, Ahmet Erdal Taşçı","doi":"10.1186/s12890-024-03464-1","DOIUrl":"10.1186/s12890-024-03464-1","url":null,"abstract":"<p><strong>Objective: </strong>Bronchoscopy plays a critical role in the diagnosis and management of lung transplant recipients. We retrospectively evaluated the safety, complications, and efficacy of transbronchial biopsy (TBB) in detecting and grading early rejection.</p><p><strong>Materials and methods: </strong>We retrospectively assessed the complications associated with TBB and the adequacy of pathological diagnoses in patients who underwent lung transplantation at Koşuyolu Yüksek İhtisas Training and Research Hospital from December 1, 2016, to April 30, 2023.</p><p><strong>Results: </strong>In this study, we retrospectively analyzed 290 TBB procedures performed on 59 out of 94 lung transplant recipients. Of the study cohort, 72.9% (n = 43) were male, with a median age of 44.3 years. The proficiency of TBB pathology was found to be 90.7% (n = 263) for acute rejection (AR), 46.5% (n = 135) for airway inflammation, 50% (n = 145) for chronic lung allograft dysfunction (CLAD) with bronchiolitis obliterans (BO), and 89.6% (n = 260) for chronic vascular rejection. Acute rejection (AR) was detected in 23.4% (n = 68). Pneumothorax was observed in 2.07% (n = 6) of the cases. A chest tube was inserted in four patients to manage pneumothorax, while two patients received only supplemental oxygen due to minimal pneumothorax.</p><p><strong>Conclusion: </strong>TBB is considered a very safe procedure when basic precautions are followed. The rate of pneumothorax, a complication associated with TBB, is low. Despite advances in immunology and genetics, TBB remains the gold standard for detecting acute rejection (AR) following lung transplantation. Given its diagnostic value, we believe that the procedure should not be avoided due to the risks of complications.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"24 1","pages":"639"},"PeriodicalIF":2.6,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11689564/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142909274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical and ultrasound characteristics in patients with sars-cov-2 pneumonia, associated with hospitalization prognosis. e-covid project.","authors":"Noemí Fàbrega Ramon, Marta Ortega Bravo, Gerard Torres Cortada, Joaquim Sol Culleré, Mònica Solanes Cabús, Jose María Palacín Peruga","doi":"10.1186/s12890-024-03439-2","DOIUrl":"10.1186/s12890-024-03439-2","url":null,"abstract":"<p><strong>Background: </strong>During the COVID-19 pandemia, the imaging test of choice to diagnose COVID-19 pneumonia as chest computed tomography (CT). However, access was limited in the hospital setting and patients treated in Primary Care (PC) could only access the chest x-ray as an imaging test. Several scientific articles that demonstrated the sensitivity of lung ultrasound, being superior to chest x-ray [Cleverley J et al., BMJ 370, 202013] and comparable to CT scan [Tung-Chen Y et al., Ultrasound Med Biol 46:2918-2926, 2020], promoted the incorporation of this technique in the assessment of COVID-19 patients in PC. [Pérez J et al., Arch. Bronconeumol 56:27-30, 2020; Gargani L et al., Eur Heart J Cardiovasc Imaging 21:941-8, 2020, Soldati G et al., J Ultrasound Med 39:1459, 2020] A prior study in our territory (Lleida, Spain) was designed to predict complications (hospital admission) of COVID-19 pneumonia in PC patients, being different patterns of Lung ultrasounds (LUS) risk factors for hospital admission. [Martínez Redondo J et al., Int J Environ Res Public Health 18:3481, 2021] The rationale for conducting this study lies in the urgent need to understand the determinants of severity and prognosis in COVID-19 patients with interstitial pneumonia, according to its lung ultrasound patterns. This research is crucial to provide a deeper understanding of how these pre-existing ultrasound patterns related to disease progression influence the medical treatment.</p><p><strong>Methods: </strong>The objective of the study is to generate predictive models of lung ultrasound patterns for the prediction of lung areas characteristics associated with hospitalizations and admissions to the Intensive Care Unit (ICU) associated with COVID-19 disease, using ultrasound, sociodemographic and medical data obtained through the computerized medical history.</p><p><strong>Results: </strong>A single relevant variable has been found for the prediction of hospitalization (number of total regions with potentially pathological presence of B lines) and one for the prediction of ICU admission (number of regions of the right lung with potentially pathological presence of B lines). In both cases it has been determined that the optimal point for classification was 2 or more lung affected areas. Those areas under the curve have been obtained with good predictive capacity and consistency in both cohorts.</p><p><strong>Conclusions: </strong>The results of this study will contribute to the determination of the ultrasound prognostic value based on the number of lung areas affected, the presence of pulmonary condensation or the irregularity of pleural effusion patterns in COVID-19 patients, being able to be extended to other lung viral infections with similar patterns.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"24 1","pages":"638"},"PeriodicalIF":2.6,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11686988/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142909273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative efficacy and safety of pulmonary surfactant delivery strategies in neonatal RDS: a network meta-analysis.","authors":"Shiyue Liu, Yu Wang, Xingwang Zhu, Feifan Chen, Yuan Shi","doi":"10.1186/s12890-024-03429-4","DOIUrl":"10.1186/s12890-024-03429-4","url":null,"abstract":"<p><strong>Purpose: </strong>To compare five pulmonary surfactant (PS) administration strategies for neonates with respiratory distress syndrome (RDS), including intubation-surfactant-extubation (InSurE), thin catheter administration, laryngeal mask airway (LMA), surfactant nebulization (SN), and usual care, with a particular emphasis on the comparison of the LMA and SN with other strategies.</p><p><strong>Methods: </strong>We conducted a systematic search of MEDLINE, EMBASE, PUBMED, and Cochrane CENTRAL databases up to November 2023. Two authors independently conducted data extraction, and assessed bias using the Cochrane Risk of Bias Tool. Frequency-based random-effects network meta-analyses were executed.</p><p><strong>Results: </strong>A total of 36 trials and 4035 infants were included in the analysis. LMA (OR: 0.20, 95%CI: 0.09 to 0.42) and Less Invasive Surfactant Administration (LISA) (OR: 0.17, 95%CI: 0.09 to 0.32) significantly reduced intubation rates compared to usual care. SN had a higher intubation rate compared to LISA (OR: 3.36, 95%CI: 1.46 to 7.71) and LMA (OR: 2.92, 95%CI: 1.10 to 7.71). LMA had a higher incidence of BPD compared to LISA (OR: 2.59, 95%CI: 1.21 to 5.54). SN ranked second to LISA in preventing BPD and death, but its efficacy decreased after excluding high-risk studies. SN and LMA had the lowest incidence of adverse events during administration.SN had the highest likelihood of secondary administration. Most results were rated as low or very low quality, with findings related to SN significantly impacted by high-risk trials.</p><p><strong>Conclusions: </strong>The thin catheter strategy minimized intubation risk and showed a better composite effect in reducing both mortality and BPD incidence. SN and LMA each showed safety and some clinical benefits in the subpopulations where they were studied, but their efficacy needs further validation through high-quality studies.</p><p><strong>Registration: </strong> This study was registered in PROSPERO (CRD42023463756).</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"24 1","pages":"637"},"PeriodicalIF":2.6,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11687079/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142906594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The prevalence of small airways disease and association with handgrip strength in young Hispanic farmworkers.","authors":"Yutong Dong, Pam Cromer, Debbie Layman, Michelle Altvater, Yanbin Dong, Haidong Zhu","doi":"10.1186/s12890-024-03382-2","DOIUrl":"10.1186/s12890-024-03382-2","url":null,"abstract":"<p><strong>Background: </strong>Small airways disease (SAD) is a key risk in developing obstructive lung diseases (OLD). Handgrip strength (HGS) is found to be associated with pulmonary function in populations with lung conditions. Hispanics remain the main workforce in farming industry, but their prevalence of lung conditions remain understudied. Likewise, HGS also remains understudied in Hispanic and farmworker populations. Our study investigated the prevalence of SAD and OLD as well as their associations with HGS among Hispanic farmworkers.</p><p><strong>Methods: </strong>A cross-sectional study analyzed 113 Hispanic farmworkers (54% female) who were screened using pulmonary function tests during annual health fairs in rural Southeastern US from 2013 to 2017. Smoking status was self-reported. SAD was defined as forced expiratory flow at 25-75% predicted of vital capacity (FEF_{25-75%predicted}) ≤ 60% per literature and OLD defined as forced expiratory volume in 1 s/ forced vital capacity (FEV1/FVC) ratio < 70% per Global Initiative for Chronic Obstructive Lung Disease criteria. Seated isometric absolute (the sum of both hands) and relative (absolute handgrip strength divided by body mass index) handgrip strengths were collected.</p><p><strong>Results: </strong>26.5% of subjects had SAD and 15.9% had OLD. 50% of subjects with SAD had OLD while 83% of subjects with OLD had SAD. 13% of overall population smoked. Lower absolute and relative HGS groups had higher prevalence of SAD and OLD. Multivariate linear regression showed that lower absolute and relative HGS were associated with worsened small airway function. Age and FEF_{25-75%predicted} were associated with FEV1/FVC. Smoking, body mass index, blood pressures, hemoglobin A1C and lipids were not predictors in either model.</p><p><strong>Conclusions: </strong>This is one of the first studies reporting prevalence of pulmonary function in Hispanic farmworkers. Although this population was relatively young and healthy, there was high prevalence of SAD and OLD, which was higher than the overall prevalence in Hispanic population. There were more females subjects with SAD. Most of the subjects with OLD had SAD but not vice versa. Lower HGS levels were associated with worsened pulmonary function, and HGS was a significant predictor of FEF_{25-75%predicted}, a potential marker for small airway physiology.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"24 1","pages":"636"},"PeriodicalIF":2.6,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11684050/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142902558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Palliative endoscopic treatment of malignant central airway obstruction.","authors":"Mads Bøgh, Sebastian Heinonen, Dalia Gustaityté Larsen, Søren Gade, Sten Schytte, Ulrik Pedersen, Thomas Kjaergaard","doi":"10.1186/s12890-024-03432-9","DOIUrl":"10.1186/s12890-024-03432-9","url":null,"abstract":"<p><strong>Purpose: </strong>To examine the outcome of palliative endoscopic treatment of malignant central airway obstruction (CAO) and identify predictors for Days Alive and Out of Hospital (DAOH), overall survival and treatment related complications.</p><p><strong>Methods: </strong>Consecutive adult patients treated endoscopically for malignant CAO at Aarhus University Hospital from 2012 to 2022 were included in the study. Statistical analyses were carried out to identify predictors for DAOH, survival and complications.</p><p><strong>Results: </strong>127 consecutive patients met the inclusion criteria. The majority of patients were categorised with stage IV lung cancer, the majority being males, with a median age of 67 years. The endoscopic interventions were mainly tumour debulking combined with airway stent insertion or tumour debulking alone. The complication rate was 21.0% and the mortality rate was 3.9%. In total, 89.8% of the patients experienced symptom relief following surgery, and the majority (92.1%) were discharged from hospital within two days after intervention. Mean survival time following intervention was 144 days, mean DAOH₃₀ was 20.8 and mean DAOH₃₆₅ was 157. Survival was associated with comorbidity, type of intervention, preoperative respiratory support and postoperative oncologic treatment. A high preoperative ASA-score, preoperative respiratory support, urgency of intervention, female gender and insertion of airway stent were predictors for a poorer DAOH-outcome.</p><p><strong>Conclusion: </strong>Endoscopic palliative treatment of malignant CAO is generally feasible and safe, offering symptom relief in most cases. The method is considered an effective measure for short to median term palliation of respiratory distress.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"24 1","pages":"635"},"PeriodicalIF":2.6,"publicationDate":"2024-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11684241/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142902557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between geriatric nutritional risk index and adverse outcomes in critical ill patients with chronic obstructive pulmonary disease: a cohort study of 2824 older adults.","authors":"Mei Feng, Yixiang Liu, Qiugui Li, Xin Yang, Fangxin Wei, Hongtao Cheng, Jun Lyu, Qingran Lin","doi":"10.1186/s12890-024-03454-3","DOIUrl":"10.1186/s12890-024-03454-3","url":null,"abstract":"<p><strong>Objectives: </strong>Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity and mortality worldwide, particularly among the elderly, resulting in high rates of intensive care unit (ICU) admissions. Malnutrition is common in elderly patients and has been associated with poor prognosis in patients with COPD. However, its impact in the ICU setting remains incompletely defined. The objective of this study is to examine the association between malnutrition, as measured by the Geriatric Nutritional Risk Index (GNRI), and adverse outcomes in older patients with COPD in the ICU.</p><p><strong>Methods: </strong>A cohort study of 2,824 older COPD patients admitted to the ICU from 2008 to 2019 was conducted. The association between GNRI scores and outcomes including in-hospital mortality, risk of pressure injuries, and length of ICU stay was evaluated. Odds ratios (OR) and 95% confidence intervals (CI) were calculated. A causal mediation analysis was employed to identify potential mediating variables and to calculate the proportion mediated.</p><p><strong>Results: </strong>The median age of study participants was approximately 75 years, with 1,281 (45.4%) being female. Lower GNRI scores (GNRI ≤ 98) were significantly associated with increased in-hospital mortality (OR: 1.48, 95% CI: 1.08-2.05, p = 0.015), higher incidence of pressure injuries (OR: 1.97, 95% CI: 1.54-2.54, p < 0.001), and longer ICU stays (OR: 1.51, 95% CI: 1.18-1.94, p = 0.001). Mediation analysis indicated that pressure injury accounted for approximately 22.9% of the association between malnutrition and in-hospital mortality.</p><p><strong>Conclusions: </strong>Lower GNRI scores, indicative of malnutrition, are associated with adverse outcomes in elderly ICU patients with COPD. The findings highlight the importance of early nutritional assessment and intervention in this high-risk group to improve survival and reduce complications.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"24 1","pages":"634"},"PeriodicalIF":2.6,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11682637/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and validation of a nomogram model based on blood-based genomic mutation signature for predicting the risk of brain metastases in non-small cell lung cancer.","authors":"Jiabin Fang, Lina Chen, Shuyao Pan, Qing Li, Siqiang Liu, Sufang Chen, Xiaojie Yang, Qiongyao Zhang, Yusheng Chen, Hongru Li","doi":"10.1186/s12890-024-03443-6","DOIUrl":"10.1186/s12890-024-03443-6","url":null,"abstract":"<p><strong>Purpose: </strong>Available research indicates that the mammalian target of rapamycin complex 1 (mTORC1) signaling pathway is significantly correlated with lung cancer brain metastasis (BM). This study established a clinical predictive model for assessing the risk of BM based on the mTORC1-related single nucleotide polymorphisms (SNPs).</p><p><strong>Methods: </strong>In this single-center retrospective study, 395 patients with non-small cell lung cancer were included. Clinical, pathological, imaging, and mTORC1-related single nucleotide polymorphism data were collected. Lasso regression was used to identify variables related to the risk of BM in lung cancer, and a nomogram was constructed. Internal validation was performed using 1,000 bootstrap samples. We plotted the receiver operating characteristic (ROC) curve and calculated the area under the curve (AUC). The calibration of the model was assessed using calibration curves and the Hosmer-Lemeshow goodness-of-fit test, and decision curve analysis (DCA) was plotted to evaluate the net clinical benefit.</p><p><strong>Results: </strong>The nomogram's predictive factors included lung cancer histology, clinical N stage, CEA, neutrophil to lymphocyte ratio (NLR), lymphocyte to monocyte ratio (LMR), RPTOR: rs1062935, and RPTOR: rs3751934. The AUC of the model in the training set and internal validation were 0.849 and 0.801, respectively. The calibration curves and Hosmer-Lemeshow test both indicated a good fit.</p><p><strong>Conclusion: </strong>The nomogram has practicality and efficacy in predicting the high risk of BM in lung cancer patients, confirming that single nucleotide polymorphisms in the mTORC1 pathway genes may be good predictors in clinical prediction models.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"24 1","pages":"633"},"PeriodicalIF":2.6,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11681648/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Safety and efficacy of transbronchial cryobiopsy for elderly lung cancer patients.","authors":"Kumiko Yamatsuta, Shotaro Okachi, Shin Hasegawa, Maki Ota, Hisashi Kako, Takuma Ina, Tomoya Horiguchi, Yuko Oya, Yasuhiro Goto, Naozumi Hashimoto, Kazuyoshi Imaizumi","doi":"10.1186/s12890-024-03456-1","DOIUrl":"10.1186/s12890-024-03456-1","url":null,"abstract":"<p><strong>Background: </strong>The increasing prevalence of lung cancer in the elderly population necessitates a closer evaluation of diagnostic and therapeutic approaches. This study aimed to compare the safety and diagnostic efficacy of transbronchial lung cryobiopsy (TBLC) between patients ≥ 80 years and younger patients.</p><p><strong>Methods: </strong>A retrospective review was conducted of 96 patients diagnosed with peripheral lung cancer who underwent TBLC between April 2021 and October 2023. The patients were categorized into two groups: the elderly group (age ≥ 80 years, n = 20) and younger group (age < 80 years; n = 76). Data regarding the biopsy yield, complications, and feasibility of molecular analyses were collected and analyzed.</p><p><strong>Results: </strong>The diagnostic yield of TBLC was comparable between the elderly and younger groups (95% vs. 89.5%, p = 0.679). Biomarker testing, including programmed death-ligand 1 expression and genetic mutations, were feasible in all cases diagnosed with cancer using TBLC samples. No significant differences were observed in major complications such as pneumothorax or bleeding.</p><p><strong>Conclusions: </strong>TBLC was found to be a safe and effective diagnostic tool for peripheral lung cancer in elderly patients and provided adequate samples for molecular testing. Since the complication rates did not significantly differ between the two age groups, age alone should not be considered a contraindication for the procedure.</p>","PeriodicalId":9148,"journal":{"name":"BMC Pulmonary Medicine","volume":"24 1","pages":"632"},"PeriodicalIF":2.6,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11670518/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}