Daily Ards Research Analysis
Today's top papers span perioperative risk in smokers, real-world patterns of autoimmune rheumatic disease–associated interstitial lung disease, and a rare neonatal case highlighting ABCA3 surfactant deficiency. Together, they underscore the need for nuanced risk stratification, multidisciplinary diagnostics, and consideration of genetic etiologies in severe respiratory failure.
Summary
Today's top papers span perioperative risk in smokers, real-world patterns of autoimmune rheumatic disease–associated interstitial lung disease, and a rare neonatal case highlighting ABCA3 surfactant deficiency. Together, they underscore the need for nuanced risk stratification, multidisciplinary diagnostics, and consideration of genetic etiologies in severe respiratory failure.
Research Themes
- Perioperative risk and tobacco exposure
- Autoimmune rheumatic disease–associated interstitial lung disease phenotypes
- Genetic surfactant disorders in neonatal respiratory failure
Selected Articles
1. Risk Stratification of Smokers Undergoing Colorectal Surgery.
In a 239-patient retrospective cohort of current and former smokers undergoing colorectal surgery, 28% experienced major adverse events within 30 days. Independent predictors included chronic obstructive pulmonary disease, and 11% reported concurrent smokeless product use while half had quit prior to surgery.
Impact: The study refines perioperative risk stratification for smokers by considering exposure patterns beyond pack-years and identifying independent predictors. This can inform preoperative counseling and optimization.
Clinical Implications: Incorporate COPD status and detailed tobacco exposure (duration, intensity, cessation history, and smokeless product use) into preoperative risk assessments, and intensify cessation and pulmonary optimization strategies.
Key Findings
- Among 239 smokers undergoing colorectal surgery, 28% had a major adverse event within 30 days.
- Independent predictors of increased complications included chronic obstructive pulmonary disease.
- 11% concurrently used smokeless tobacco products; half had quit smoking prior to surgery.
Methodological Strengths
- Clearly defined 30-day composite endpoint capturing major cardiopulmonary and thrombotic outcomes
- Multivariable assessment identifying independent predictors
Limitations
- Retrospective single-cohort design susceptible to residual confounding
- Abstract does not report effect sizes or full list of independent predictors
Future Directions: Prospective validation to quantify effect sizes for exposure patterns, evaluate timing of preoperative cessation, and assess whether targeted optimization reduces 30-day complications.
BackgroundSmoking is an established risk factor for postoperative complications. There is limited data on characteristics of smokers that increase risk beyond pack-years. This study aims to assess the effect of preoperative smoking duration and intensity, periods of cessation, and concurrent smokeless product use on colorectal surgery outcomes.MethodsA retrospective cohort study was conducted to assess operative details, demographic and smoking factors, and postoperative complications in smokers. The cohort included 239 current and former smokers who underwent colorectal surgery from 2012 to 2022. The primary endpoint was major adverse events 30-days postoperatively, defined as incidence of major bleeding, venous-thromboembolism, acute kidney injury, myocardial infarction, acute respiratory distress syndrome, stroke, infection, mortality, or readmission.ResultsThe most common procedure was colon resection. Average age at procedure was 63.9 ± 0.85 years, smoking duration was 27.0 ± 1.0 years, packs-per-day was 0.94 ± 0.04 packs, and pack-years was 26.0 ± 1.7. It was found that 11% of the patients concurrently used smokeless products (chew, dip, and/or vape). Half of the patients quit smoking prior to surgery. During the follow-up period, 28% had any major adverse event. Independent predictors of increased complications were chronic obstructive pulmonary disease (
2. Interstitial Lung Disease Associated with Autoimmune Rheumatic Diseases: An Experience from Türkiye.
This multicenter retrospective study of 212 ARD-ILD patients in Türkiye found systemic sclerosis to be the most common underlying rheumatic disease (53.8%), with NSIP as the predominant radiological pattern (71.7%). The cohort also included IPAF and other connective tissue diseases, underscoring the need for multidisciplinary management.
Impact: By detailing disease distribution and imaging patterns in ARD-ILD, the study provides practical epidemiologic context that informs screening and diagnostic prioritization.
Clinical Implications: Expect NSIP predominance in ARD-ILD, particularly in systemic sclerosis; prioritize HRCT-based pattern recognition and coordinated rheumatology–pulmonology care. Consider IPAF in appropriate phenotypes.
Key Findings
- Among 212 ARD-ILD patients, systemic sclerosis was the most common underlying disease (53.8%).
- NSIP was the predominant radiological pattern (71.7%), with definite UIP at 13.7% and probable UIP at 8.5%.
- The cohort included RA (22.2%), Sjögren's syndrome (6.6%), inflammatory myopathy (7.5%), IPAF (4%), UCTD (3.8%), and SLE (1.9%).
Methodological Strengths
- Multidisciplinary, tertiary-center collaboration across rheumatology and pulmonology
- Relatively large ARD-ILD cohort with detailed radiologic phenotyping
Limitations
- Retrospective descriptive design without longitudinal outcome data
- Potential referral/selection bias inherent to tertiary centers
Future Directions: Prospective longitudinal studies to link radiologic patterns and serologies with outcomes, and to evaluate multidisciplinary care pathways.
Objective: Interstitial lung disease (ILD) is one of the most challenging involvement of autoimmune rheumatic diseases (ARDs) and could lead to significant morbidity and mortality. In this article, a collaborative work of tertiary rheumatology and pulmonology centers describing demographic, serological, and radiological findings of patients with ARD associated with ILD (ARD-ILD) is presented. Methods: A descriptive, retrospective study, and data related to demographics, clinical, laboratory, radiologic, or histopathological findings of ILD were collected from the study participants' charts. Results: Around 212 patients with ARD-ILD were evaluated. Of the patients, 172 (81.1%) were female and 40 (18.9%) were male. The distribution of the rheumatic diseases was as follows: systemic sclerosis in 114 (53.8%), rheumatoid arthritis in 47 (22.2%), Sjögren's syndrome in 14 (6.6%), inflammatory myopathy in 16 (7.5%) patients, interstitial pneumonia with autoimmune features (IPAF) in 9 (4%) patients, undifferentiated connective tissue disease in 8 (3.8%), and systemic lupus erythematosus in 4 (1.9%). According to the radiological patterns, 71.7% of the patients had nonspecific interstitial pneumonia (NSIP), 13.7% had definite usual interstitial pneumonia (UIP), 8.5% had probable UIP, 3.8% had lymphocytic interstitial pneumonia, 1.9% had organizing pneumonia, and 0.5% had an atypical pattern. Conclusion: This study showed that the most common rheumatic disease causing ILD is still systemic sclerosis, and NSIP is more prominent as a radiological pattern. IPAF, a disease that has entered the literature in recent years, is also an important type of ILD. Given the multisystemic involvement of ARDs, collaboration among different disciplines is undoubtedly crucial in the diagnosis and management of these diseases.
3. Progressive respiratory failure in a term neonate with ABCA3 surfactant deficiency: Beyond the common causes of respiratory distress.
This case report describes progressive respiratory failure in a term neonate attributed to ABCA3 surfactant deficiency, emphasizing that genetic causes should be considered when typical etiologies of neonatal respiratory distress do not explain the course.
Impact: Highlights a rare but important genetic etiology for severe neonatal respiratory failure, prompting earlier genetic evaluation when clinical trajectories diverge from common patterns.
Clinical Implications: In term neonates with progressive respiratory failure unresponsive to standard management for TTN/RDS/air leak, consider genetic surfactant disorders like ABCA3 deficiency and pursue appropriate diagnostic workup.
Key Findings
- Progressive respiratory failure occurred in a term neonate beyond common causes such as TTN, RDS, or air leak.
- The clinical course was attributed to ABCA3 surfactant deficiency, a rare genetic cause of neonatal respiratory distress.
Methodological Strengths
- Detailed clinical characterization highlighting divergence from common neonatal respiratory distress etiologies
- Identification of a specific rare disease mechanism guiding diagnostic considerations
Limitations
- Single case report limits generalizability
- Abstract does not detail genetic testing methods or management outcomes
Future Directions: Develop diagnostic algorithms incorporating early genetic testing for persistent neonatal respiratory failure and evaluate targeted therapies in ABCA3-related disease.
BackgroundMost cases of respiratory distress in term neonates are due to transient tachypnea of the newborn (TTN), respiratory distress syndrome (RDS), or air leak syndromes. Genetic surfactant deficiencies are rare causes of respiratory distress. Among these, mutations in the