Predictive factors for the recurrence of anti-aminoacyl-tRNA synthetase antibody-associated interstitial lung disease

BackgroundAnti-synthetase syndrome (ASS) is characterized by the presence of anti-aminoacyl-tRNA synthetase antibody and ASS-associated interstitial lung disease (ILD) often recurs. The effectiveness of remission induction therapy with corticosteroids and calcineurin inhibitor (CNI) and the predictive factors for ASS-ILD recurrence were examined.MethodsWe retrospectively identified consecutive patients with ASS-ILD treated with corticosteroids and CNI during 2006–2017 and evaluated the predictive factors for recurrence using logistic regression analysis.ResultsOf the 57 patients included in this study, 54 (94.7%) exhibited improved response to remission induction therapy. There were 32 recurrence patients during maintenance therapy. The median period until recurrence was 27 months. There were no significant differences in the baseline characteristics between the recurrence and nonrecurrence groups. In the recurrence group, respiratory function and St. George's Respiratory Questionnaire score deteriorated over the clinical course. The Krebs von den Lungen-6 (KL-6) level changed with disease behavior. The multivariate analysis revealed that KL-6 increase rate from remission (odds ratio: 3.21, 95% CI: 1.17–8.86, p = 0.02) and CNI discontinuation (odds ratio: 8.09, 95% CI: 1.39–47.09, p = 0.02) were independent predictive factors for recurrence. The receiver operating characteristics analysis revealed that the optimal cut-off point of KL-6 increase rate was 2.0. The positive predictive values of the KL-6 increase rate from remission of >2.0 and CNI discontinuation were 90.0 and 88.9%, respectively. The CNI treatment duration and recurrence were not related.ConclusionsRecurrence influenced long-term deterioration. KL-6 was a serum biomarker for disease behavior and recurrence prediction. The results suggest the importance of CNI continuation.     

Effects of nintedanib on disease progression and safety in Japanese patients with progressive fibrosing interstitial lung diseases: Further subset analysis from the whole INBUILD trial

BackgroundA previous subgroup analysis of data from the INBUILD trial showed that nintedanib reduced the annual rate of decline in forced vital capacity (FVC) in Japanese patients with progressive fibrosing interstitial lung diseases (PF-ILDs). The safety profile of nintedanib over 52 weeks in Japanese patients was similar to that of the overall population.MethodsUsing data from 108 Japanese patients with PF-ILDs who had received at least 1 dose of study medication in the INBUILD trial, we evaluated the effect of nintedanib on disease progression and assessed the safety profile over the whole trial period (i.e., a longer duration than the prior analysis) compared with placebo. ILD progression was defined as an absolute decline in FVC ≥10% predicted vs baseline.ResultsOver the whole trial, in Japanese patients with PF-ILDs, nintedanib numerically lowered the risk of progression of ILD or death (hazard ratio [HR], 0.66; 95% confidence intervals [CI]: 0.37, 1.16), acute exacerbation of ILD or death (HR, 0.28; 95% CI: 0.09, 0.83), and death (HR, 0.41; 95% CI: 0.11, 1.51). The most common adverse event over the whole trial in nintedanib-treated Japanese patients was diarrhea, which was manageable for most patients by dose reduction and interruption. The safety profile of nintedanib in this longer duration analysis was consistent with that previously reported.ConclusionsIn this analysis of data from Japanese patients with PF-ILDs, nintedanib nominally reduced the risk of clinically meaningful outcomes reflecting disease progression, including death, over the whole trial, and no new safety concerns were observed.Clinical trial registrationClinicalTrials.gov NCT02999178.     

Human epididymis protein 4 is a new biomarker to predict the prognosis of progressive fibrosing interstitial lung disease

BackgroundThe clinical course and prognosis of progressive fibrosing interstitial lung diseases (PF-ILDs) vary between individuals. Notably, predictive serum biomarkers for disease management are needed. Serum human epididymis protein 4 (HE4) is reportedly elevated in patients with idiopathic pulmonary ?brosis (IPF); however, its clinical utility remains unknown. We evaluated the potential of serum HE4 as a biomarker for patients with PF-ILD.MethodsSerum HE4 was measured in a retrospective study consisting of 34 patients with PF-ILD and 40 healthy volunteers. The relationship between serum HE4 levels and clinical parameters or prognosis was investigated. To validate the significance of results obtained, a prospective observational study was performed in 37 patients presenting PF-ILD and 40 control patients without PF-ILD.ResultsSerum HE4 levels were higher in patients with PF-ILD than in healthy volunteers (P < 0.01). Moreover, serum HE4 levels correlated with the extent of honeycombing on chest high-resolution computed tomography (r = 0.41, P = 0.015). In multivariate analysis using the Cox proportional hazard model, higher HE4 levels (>238 pmol/L) were associated with an elevated mortality risk; hazard ratio (HR) 7.27, 95% CI 1.56–34.0, P = 0.01 in the derivation cohort; HR 44.3, 95% CI 4.19–468, P < 0.01 in validation cohort.ConclusionsSerum HE4 levels may serve as a new diagnostic and prognostic biomarker for patients with PF-ILD.     

The safety and efficacy of durvalumab consolidation therapy in the management of patients with stage III non-small-cell lung cancer and preexisting interstitial lung disease

BackgroundSome lung cancer patients have preexisting interstitial lung disease (ILD), which is considered a risk factor for lung cancer treatment. This study investigated the safety and efficacy of durvalumab consolidation therapy for patients with stage III non-small-cell lung cancer (NSCLC) and preexisting ILD.MethodsFifty consecutive patients who were judged to be tolerable to concurrent chemoradiotherapy (CCRT) for stage III NSCLC were enrolled. Differences in the incidence rate of radiation pneumonitis (RP) and progression-free survival (PFS) were assessed in patients with or without ILD of which CT showed non-usual interstitial pneumonia pattern between the durvalumab consolidation group and chemotherapy (combination of carboplatin and paclitaxel [CP]) consolidation group.ResultsThe incidence of RP was higher in patients with preexisting ILD (40% and 20% in the durvalumab and CP groups, respectively) than in those without ILD (26% and 8% in the durvalumab and CP groups, respectively). Univariate analysis showed that durvalumab therapy tended to increase the incidence of RP; however, preexisting ILD did not significantly increase the incidence of RP. The condition of all patients who developed RP improved with the administration of oral prednisolone. Among patients without ILD, the median PFS was 17 and 16 months in the durvalumab and CP groups, respectively. Among patients with preexisting ILD, median PFS was not achieved in the durvalumab group and was 8 months in the CP group.ConclusionsAlthough durvalumab consolidation therapy tended to increase the incidence of RP, it might be tolerable in stage III NSCLC patients with preexisting ILD.     

The prognostic value of the COPD Assessment Test in fibrotic interstitial lung disease

BackgroundThe COPD Assessment Test (CAT) has been studied as a measure of health status in idiopathic pulmonary fibrosis (IPF) and interstitial lung disease associated with connective tissue disease. However, its prognostic value is unknown. The present study explored the association between CAT score and mortality in fibrotic interstitial lung disease (FILD), including IPF and other forms of ILD.MethodsWe retrospectively analyzed 501 consecutive patients with FILD who underwent clinical assessment, including pulmonary function test and CAT. The association between CAT score and 3-year mortality was assessed using Cox proportional hazard analysis, Kaplan–Meier plots, and the log-rank test for trend. To handle missing data, the imputed method was used.ResultsThe patients’ median age was 68 years, and 320 were male (63.9%). Regarding CAT severity, 203 patients had a low impact level (score <10), 195 had a medium level (10–20), 80 had a high level (21–30), and 23 had a very high level (31–40). During the 3-year study period, 118 patients died. After adjusting for age, sex, forced vital capacity, diffusion capacity for carbon monoxide, IPF diagnosis, and usual interstitial pneumonia pattern on high-resolution computed tomography, the CAT score was significantly associated with 3-year mortality (hazard ratio in increments of 10 points: 1.458, 95% confidence interval 1.161–1.830; p < 0.001). In addition, patients with high and very high impact levels had twofold and threefold higher mortality risk than those with low levels, respectively.ConclusionThe CAT has prognostic value in FILD.     

Impact of post-capillary pulmonary hypertension on mortality in interstitial lung disease

BackgroundPulmonary hypertension (PH) influences mortality in patients with interstitial lung disease (ILD). Almost all studies on patients with ILD, have focused on the clinical impact of pre-capillary PH on survival. Therefore, little is known about the influence of post-capillary PH. We aimed to assess the prevalence of post-capillary PH and its clinical impact on survival in patients with ILD, followed by comparison with pre-capillary PH.MethodsThis retrospective study enrolled 1152 patients with ILD who were diagnosed with PH using right heart catheterization between May 2007 and December 2015. We analyzed the demographics and composite outcomes (defined as death from any cause or lung transplantation) of patients with post-capillary PH and compared them with patients with pre-capillary PH.ResultsThirty-two (20%) of the 157 patients with ILD-PH were diagnosed with post-capillary PH. Patients with post-capillary PH had significantly lower modified Medical Research Council scores, higher diffusion capacity for carbon monoxide, higher resting PaO₂, lower pulmonary vascular resistance (PVR), and higher lowest oxygen saturation during the 6-min walk test compared to those with pre-capillary PH. Cardiovascular diseases were associated with a higher risk of mortality in patients with post-capillary PH. Multivariate Cox proportional hazards analysis demonstrated no significant difference between the composite outcomes in pre-capillary and post-capillary PH, while PVR and the ILD Gender-Age-Physiology Index were significantly associated with the composite outcome.ConclusionsWe found that approximately one-fifth of patients with ILD-PH were diagnosed with post-capillary PH, and that PVR and not post-capillary PH was associated with mortality.     

Clinical,radiological, and pathological features of anti-asparaginyl tRNA synthetase antibody-related interstitial lung disease

BackgroundMyositis and interstitial lung disease (ILD) frequently occur in patients with anti-aminoacyl-tRNA synthetase (ARS) antibodies. Nearly half of ARS-ILD patients have the acute or subacute form of the disease, and one-third of these patients show a deterioration in pulmonary function over the long-term course because of frequent recurrences and refractoriness to therapy. Several reports recently described different characteristics depending on the individual anti-ARS antibodies, and the anti-asparaginyl tRNA synthetase (KS) antibody was strongly linked to ILD rather than to myositis. We therefore hypothesized that KS-ILD may have clinical characteristics that differ from those of other ARS-ILDs. The aim of this study was to clarify the clinical, radiological, and pathological features of KS antibody-positive ILD.MethodsWe retrospectively analyzed 19 consecutive patients with KS-ILD who underwent initial clinical measurements and high-resolution computed tomography and pathological assessments. We also analyzed disease behavior based on pulmonary function test results during the follow-up period.ResultsOur KS-ILD cohort included patients with dermatomyositis (10.5%), primary Sjögren syndrome (5.3%), and idiopathic ILD (84.2%). Most patients presented with chronic onset (89.5%) and a nonspecific pattern of interstitial pneumonia at each radiological and pathological assessment (89.4% and 85.7%, respectively). The pulmonary function test results showed that the mean changes from the initial %forced vital capacity and %diffusing capacity of the lung for carbon monoxide at 3 years were 3.7% ± 2.9% and 9.35% ± 3.0%, respectively.ConclusionsMost KS-ILD patients showed a tendency for chronic disease onset and long-term stabilization of pulmonary function.     

Correlation between preoperative 18F-FDG PET/CT findings and postoperative short-term prognosis in lung cancer patients with idiopathic interstitial pneumonia after lung resection

BackgroundThe present study aimed to investigate the correlation between preoperative 2-deoxy-2-[¹⁸F]fluoro-d-glucose (¹⁸F-FDG) PET/CT findings and short-term survival in lung cancer patients with idiopathic interstitial pneumonia (IIP).MethodsWe retrospectively reviewed the data of 425 patients who underwent lung resection for non-small cell lung cancer without preoperative radiation therapy between November 2012 and October 2017. The maximum SUV (SUVmax) in the IIP area except the lung cancer site was measured in each patient.ResultsThirty-one of the 425 patients (7.3%) showed findings of IIP in chest CT. Five of the 31 patients (16.1%) developed acute exacerbation (AE) after lung resection (AE+ group). Twenty-six of the 31 patients (83.9%) did not develop AE (AE– group). In the AE+ group, ¹⁸F-FDG SUVmax in the IIP area was significantly higher (1.9 ± 0.6 vs. 2.7 ± 0.7, p = 0.02) compared with that in the AE? group. The receiver operating characteristic analysis identified an SUVmax threshold score of 2.55 (p = 0.02) for AE. There was no 90-day mortality in the patients with SUVmax < 2.55 (n = 25). On the other hand, the 90-day mortality rate in patients with SUVmax ≥ 2.55 (n = 6) was 33.3% (2 patients).Conclusions¹⁸F-FDG PET/CT may predict AE after lung resection and could be related to short-term survival in lung cancer patients with IIP. Further investigations are needed to improve the prognosis in patients with high SUVmax in the IIP area.     

Apalutamide-induced severe interstitial lung disease: A report of two cases from Japan

Apalutamide, a competitive inhibitor of the androgen receptor, is being increasingly used for the treatment of prostate cancer. There have been few reports of interstitial lung disease in clinical trials of apalutamide. However, two cases of apalutamide-induced interstitial lung disease with respiratory failure in Japanese males, who were successfully treated with high-dose corticosteroids, are presented here. These cases suggest that clinicians should be alert to the potentially life-threatening risk of pulmonary toxicity associated with apalutamide treatment.     

Predictive factors for long-term mortality in miscellaneous cardiogenic shock: Protective role of beta-blockers at admission

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Impact of interstitial pneumonia complications on palliative medication for terminal lung cancer: A single-center retrospective study

BackgroundInterstitial pneumonia (IP) is associated with high comorbidity of lung cancer (LC). We aimed to investigate whether concomitant IP affects palliative pharmacotherapy for end-stage symptom relief in patients with LC.MethodsWe retrospectively examined the clinical records of LC patients who died in our hospital between 2015 and 2017. The patients were divided into the IP-LC (LC with comorbid IP) and LC (LC without IP) groups according to the presence of IP to compare the use of opioid and midazolam in their terminal period.ResultsIn total, 236 patients were enrolled in this study and divided into the IP-LC (n = 70) and LC (n = 166) groups. Among them, 51.2% and 65.7% patients in the LC and IP-LC groups, respectively, required continuous opioid administration to relieve dyspnea and/or pain. There were no significant between-group differences in the median initial and maximum doses and continuous opioid administration duration. The frequency of concomitant use of continuous midazolam and opioids was higher in the IP-LC group than in the LC group (20.5% vs. 7.1%; p = 0.01), primarily because of refractory dyspnea in all patients in both groups. The median survival time after the initiation of continuous opioid administration did not change irrespective of continuous midazolam administration.ConclusionsCompared with patients with LC, those with IP-LC are more likely to require continuous midazolam administration because continuously administered opioids alone are not sufficiently effective in relieving end-stage dyspnea among the latter.     

Diagnostic usefulness of transbronchial lung cryobiopsy in two patients mildly affected with pulmonary lymphangioleiomyomatosis

Transbronchial lung biopsy is a non-invasive technique used primarily for the pathological diagnosis of lymphangioleiomyomatosis (LAM). However, some cases, particularly those with early-stage lung lesions, are difficult to diagnose because of the specimen size and presence of artifacts. Herein, we present two cases of LAM with relatively mild cystic changes in the lungs and slight impairment seen in pulmonary function tests. Both patients were diagnosed pathologically through transbronchial lung cryobiopsy. These cases indicate that transbronchial lung cryobiopsy is a useful tool for diagnosing early-stage pulmonary LAM owing to its appropriate specimen size for detecting LAM cells and few crush artifacts.     

Prevalence of viral infection in acute exacerbation of interstitial lung diseases in Japan

BackgroundFatal acute exacerbation of interstitial lung diseases is often accompanied by indicators of infection such as fever, cough, and sputum. Although viral infection can contribute to acute exacerbation of interstitial lung diseases, few studies have identified a relationship between acute exacerbations and viral infections. The present study aimed to prospectively clarify the role of viral infection in patients showing acute exacerbation of interstitial lung disease in Japan.MethodsNasopharyngeal swab specimens were collected from patients with acute exacerbation of interstitial lung disease between May 2017 and February 2019. Respiratory viruses were detected by the Luminex xTAG Respiratory Viral Panel FAST v2 RUO kit and the BioFire FilmArray Respiratory Panel assay.ResultsThree of 29 patients demonstrated respiratory viral infection during acute exacerbation of interstitial lung diseases. The infectious agents were identified as respiratory syncytial virus, respiratory syncytial virus and influenza A virus, and influenza A virus and rhino/enterovirus in the three patients, respectively.ConclusionsThese results suggest that viral infection did not frequently induce acute exacerbation of interstitial lung diseases in Japan.     

Comparison of the chest computed tomography findings between patients with pulmonary tuberculosis and those with Mycobacterium avium complex lung disease

BackgroundSince the computed tomography (CT) findings of nontuberculous mycobacterial lung disease are similar to those of pulmonary tuberculosis (PTB), we often have difficulty differentiating the two. In this study, we compared the differences in chest CT findings and their locations between cases of PTB and Mycobacterium avium complex lung disease (MACLD).MethodsThe subjects were 100 MACLD patients and 42 PTB patients treated at our hospital from May 2005 to August 2015. The CT findings were retrospectively evaluated.ResultsPTB more frequently showed lung shadows with calcification inside the lesion, calcification of the mediastinal/hilar lymph node, and pleural effusion on CT than MACLD, while extensive bronchiectasis and granular/large shadows connected to bronchiectasis were more frequently observed with MACLD than PTB. For cavitary lesions, the thinnest part of the cavity wall with MACLD was thinner than that with PTB. Granular shadows, large shadows, and bronchiectasis were typically distributed to the right upper lobe and left upper division in PTB cases vs. the right intermediate lobe and left lingula in MACLD.ConclusionsChest CT findings would therefore be useful for distinguishing PTB and MACLD when typical findings are observed.     

Resecting a giant malignant lung tumor in a patient with unilateral acute interstitial pneumonitis

Acute interstitial pneumonia is a rare and fulminant form of idiopathic interstitial lung disease. Here, we report a case of a giant malignant sarcomatoid tumor of the left lung with unilateral lung infiltration. The tumor was resected under venovenous extracorporeal membrane oxygenation support. Right middle lung lobe biopsy revealed alveolar epithelial hyperplasia, mild interstitial fibrosis, and interstitial edema. The patient was diagnosed with acute interstitial pneumonitis, and effectively treated with steroid pulse therapy followed by prednisolone. In this case, the contralateral lung expansion accomplished with tumor resection, definitive diagnosis based on lung biopsy, and corticosteroid treatment possibly improved the outcome.     

Overweight improves long-term survival in Japanese patients with asthma

BackgroundObesity is a risk factor for severe and difficult-to-treat asthma. However, the impact of different physiques on long-term outcomes is poorly understood. We aimed to investigate the correlation between obesity and asthma-associated long-term mortality in Japanese adults.MethodsFrom the data on 3146 individuals with air pollution-related respiratory diseases in the Omuta City Air Pollution-Related Health Damage Cohort Program, 697 adult patients with asthma were analyzed. Hazard ratios for long-term all-cause and respiratory disease -related mortality were compared in patients with different physiques using the Cox proportional hazard models. The classification of physiques was based on the WHO obesity criteria.ResultsOf the 697 patients, 439 died during the median observation period of 26.3 years. The number (% of total) of underweight, normal-weight, pre-obese, and obese class I–III individuals were 75 (10.8%), 459 (65.9%), 140 (20.1%), and 23 (3.3%), respectively. The Cox proportional hazard model (adjusted hazard ratio [95% confidence interval], P value) showed that pre-obese group had a significantly reduced risk for all-cause (0.65 [0.51 to 0.83], P < 0.05) and respiratory disease (0.55 [0.37 to 0.81], P < 0.05)-related mortality related to normal-weight group.ConclusionsOur cohort program demonstrated that being slightly overweight may reduce the risk of long-term mortality in patients with asthma. However, the influence of obesity on long-term outcomes remains unclear in asthma, because of the small number of obese patients included in our study. Our findings suggest that interventions, including nutrition and exercises, should be provided to Japanese patients with asthma.     

Healthcare resource utilization and costs of nonalcoholic steatohepatitis patients with advanced liver disease in Italy

Background and aimsNonalcoholic steatohepatitis (NASH) may progress to advanced liver disease (AdvLD). This study characterized comorbidities, healthcare resource utilization (HCRU) and associated costs among hospitalized patients with AdvLD due to NASH in Italy.Methods and resultsAdult nonalcoholic fatty liver disease (NAFLD)/NASH patients from 2011 to 2017 were identified from administrative databases of Italian local health units using ICD-9-CM codes. Development of compensated cirrhosis (CC), decompensated cirrhosis (DCC), hepatocellular carcinoma (HCC), or liver transplant (LT) was identified using first diagnosis date for each severity cohort (index-date). Patients progressing to multiple disease stages were included in >1 cohort. Patients were followed from index-date until the earliest of disease progression, end of coverage, death, or end of study. Within each cohort, per member per month values were annualized to calculate all-cause HCRU or costs(€) in 2017.Of the 9,729 hospitalized NAFLD/NASH patients identified, 97% were without AdvLD, 1.3% had CC, 3.1% DCC, 0.8% HCC, 0.1% LT. Comorbidity burden was high across all cohorts. Mean annual number of inpatient services was greater in patients with AdvLD than without AdvLD. Similar trends were observed in outpatient visits and pharmacy fills. Mean total annual costs increased with disease severity, driven primarily by inpatient services costs.ConclusionNAFLD/NASH patients in Italy have high comorbidity burden. AdvLD patients had significantly higher costs. The higher prevalence of DCC compared to CC in this population may suggest challenges of effectively screening and identifying NAFLD/NASH patients. Early identification and effective management are needed to reduce risk of disease progression and subsequent HCRU and costs.     

Treatment strategies with alternative treatment options for patients with Mycobacterium avium complex pulmonary disease

Diseases caused by Mycobacterium avium complex (MAC) infection in the lungs are increasing worldwide. The recurrence rate of MAC-pulmonary disease (PD) has been reported to be as high as 25–45%. A significant percentage of recurrences occurs because of reinfection with a new genotype from the environment. A focus on reducing exposure to MAC organisms from the environment is therefore an essential component of the management of this disease as well as standard MAC-PD treatment. A macrolide-containing three-drug regimen is recommended over a two-drug regimen as a standard treatment, and azithromycin is recommended rather than clarithromycin. Both the 2007 and 2020 guidelines recommend a treatment duration of MAC-PD of at least one year after the culture conversion. Previous clinical studies have reported that ethambutol could prevent macrolide resistance. Furthermore, the concomitant use of aminoglycoside, amikacin liposomal inhalation, clofazimine, linezolid, bedaquiline, and fluoroquinolone with modification of guideline-based therapy has been studied.Long-term management of MAC-PD remains challenging because of the discontinuation of multi-drug regimens and the acquisition of macrolide resistance. Moreover, the poor compliance of guideline-based therapy for MAC-PD treatment worldwide is concerning since it causes macrolide resistance.Therefore, in this review, we focus on MAC-PD treatment and summarize various treatment options when standard treatment cannot be maintained, with reference to the latest ATS/ERS/ESCMID/IDSA clinical practice guidelines revised in 2020.     

Basal interventricular septum thinning and long-term left ventricular function in patients with sarcoidosis

BackgroundBasal interventricular septum (IVS) thinning on transthoracic echocardiography (TTE) is highly specific to cardiac sarcoidosis. Although basal IVS thinning is listed as one of the five major diagnostic criteria for cardiac sarcoidosis, its association with long-term cardiac function has not been investigated. This study aimed to evaluate the epidemiology and clinical relevance of basal IVS thinning in a clinic-based cohort of patients with sarcoidosis.MethodsThis retrospective observational study was conducted at a general sarcoidosis clinic. The incidence of basal IVS thinning and associations with variables at baseline and a delayed onset of left ventricular (LV) dysfunction (LV ejection fraction [LVEF] < 50%) were analyzed.ResultsOf the 1009 patients, 23 (2.3%) had basal IVS thinning. Basal IVS thinning was associated with cardiac pacemaker (PM) implantation at baseline (adjusted odds ratio = 20.5; 95% confidence interval [CI] = 7.9–53.2; P < 0.01). Of the 768 patients with an LVEF of ≥50% at baseline who underwent one or more longitudinal TTEs after baseline, 36 (4.7%) developed LV dysfunction over a median observation period of 88.9 months. Basal IVS thinning and PM implantation at baseline were the independent predictors of a delayed onset of LV dysfunction (basal IVS thinning, adjusted hazard ratio [HR] = 3.7; 95% CI = 1.5–9.6; PM implantation, adjusted HR = 15.7; 95% CI = 7.4–33.3).ConclusionsBasal IVS thinning in patients with sarcoidosis can predict a delayed onset of LV dysfunction even when the LV function is preserved at the time of detection.