Publications by authors named "Chadi Hage"

Purpose: Delayed chest closure (DCC) during lung transplantation (LTx) is a controversial surgical approach that lacks research in systemic sclerosis (SSc) patients. We investigated outcomes, clinical risk factors, and CT-based lung size-matching parameters associated with DCC in SSc recipients.

Methods: This retrospective study included 92 SSc recipients (age 51 years ± 10, 56/92 (61.

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  • - The study investigates the effects of extracorporeal membrane oxygenation (ECMO) on airway complications in patients with severe primary graft dysfunction (PGD3) following lung transplantation, highlighting the potential benefits of early ECMO use.
  • - Results showed that patients on veno-venous ECMO (VV-ECMO) had lower instances of PGD3 and reduced risk of chronic allograft dysfunction compared to those solely on mechanical ventilation (MV).
  • - The findings suggest VV-ECMO may help prevent ischemic reperfusion injury and lower the severity of airway complications post-transplantation, indicating a need for further research to understand the underlying mechanisms.
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Background: The incidence of invasive fungal infections is increasing in immune-competent and immune-compromised patients. An examination of the recent literature related to the treatment of fungal infections was performed to address two clinical questions. First, in patients with proven or probable invasive pulmonary aspergillosis, should combination therapy with a mold-active triazole plus echinocandin be administered vs.

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Multiorgan transplantation is offered to a selected group of patients every year. The sequence in which organs are transplanted depends on ischemic time graft tolerance and the sickest organ first strategy. In the case of Lung-Liver transplantation, lung allografts are usually implanted before the liver.

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Objective: Lung transplantation is a complex surgical procedure performed by specialized teams. Practice changes to eliminate overnight lung transplants were implemented at our center and patient outcomes were evaluated.

Methods: Patient and donor organ selection were performed in the standard fashion.

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  • The study compares two anticoagulation protocols used during intraoperative VA-ECMO support in double lung transplant patients from 2016 to 2023.
  • One protocol used a high-target activated clotting time (ACT) while the other used a low-dose heparin approach with a TXA infusion.
  • Results showed that the low heparin group had shorter surgery times and less need for blood products, with no significant differences in post-operative complications or severe primary graft dysfunction rates.
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  • Fungal lung disease includes various infections caused by fungi, particularly from the Aspergillus species, leading to conditions like allergic bronchopulmonary aspergillosis and chronic pulmonary aspergillosis, influenced by the patient's immune response and the type of fungi.
  • The diagnosis of these diseases is complicated by geographic and environmental factors as well as coexisting health issues, with new techniques developing but still facing challenges in speed and accuracy, especially in less developed areas.
  • Treatments mainly use antifungal drugs, but drug resistance is becoming a significant problem; however, new antifungal medications and better understanding of the lung mycobiome could pave the way for improved diagnosis and therapy.
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Objectives: The current understanding of survival prediction of lung transplant (LTx) patients with systemic sclerosis (SSc) is limited. This study aims to identify novel image features from preoperative chest CT scans associated with post-LTx survival in SSc patients and integrate them into comprehensive prediction models.

Materials And Methods: We conducted a retrospective study based on a cohort of SSc patients with demographic information, clinical data, and preoperative chest CT scans who underwent LTx between 2004 and 2020.

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Background: Lung retransplantation is offered to select patients with chronic allograft dysfunction. Given the increased risk of morbidity and mortality conferred by retransplantation, post-transplant function should be considered in the decision of who and when to list. The aim of this study is to identify predictors of post-operative disability in patients undergoing lung retransplantation.

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Background: Experience with lung transplantation (LT) in patients with human immunodeficiency virus (HIV) is limited. Many studies have demonstrated the success of kidney and liver transplantation in HIV-seropositive (HIV+) patients. Our objective was to conduct a national registry analysis comparing LT outcomes in HIV+ to HIV-seronegative (HIV-) recipients.

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  • Primary graft dysfunction (PGD) is a significant cause of complications and mortality after lung transplants, and predicting its risk can help in donor selection and patient care planning.
  • Researchers created a predictive model using data from a study conducted between 2012 and 2018, which evaluated various clinical factors to forecast the risk of PGD and developed a user-friendly interface for real-time assessments.
  • The model incorporates numerous variables like distance from the donor hospital, recipient characteristics, and donor factors, showing a net benefit for decision-making in predicting PGD risk across different levels, making it a valuable tool for transplantation processes.
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Primary graft dysfunction (PGD) is the leading cause of early morbidity and mortality after lung transplantation. Prior studies implicated proxy-defined donor smoking as a risk factor for PGD and mortality. We aimed to more accurately assess the impact of donor smoke exposure on PGD and mortality using quantitative smoke exposure biomarkers.

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Cirrhosis is usually regarded as a contraindication to isolated lung transplantation (ILT). We sought to determine which patients with cirrhosis could safely undergo ILT. Based on a retrospective analysis of patients with cirrhosis who underwent ILT at our center between 2007 and 2020, we developed an exclusionary algorithm (PENS-CEPT: Pittsburgh ExclusioN Score in Cirrhotics Evaluated for Pulmonary Transplant) to help determine which patients can undergo ILT with minimal incurred risk from their underlying liver disease.

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  • The study aimed to evaluate the trends and outcomes of lung transplants in patients aged 70 and older, using data from the UNOS database from May 2005 to December 2022.
  • Out of 34,957 lung transplant recipients, 3,236 (9.3%) were aged 70 or older, with an increasing rate of transplants among this age group, especially in low-volume centers (LVCs) where their outcomes were similar to higher-volume centers (HVCs).
  • Older recipients had shorter survival times compared to younger ones, with a higher likelihood of dying from cardiovascular issues or cancer, highlighting the need for better selection and care strategies for this age group in transplant programs.
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Idiopathic pulmonary fibrosis lung transplant recipients (IPF-LTRs) are enriched for short telomere length (TL) and telomere gene rare variants. A subset of patients with nontransplant short-TL are at increased risk for bone marrow (BM) dysfunction. We hypothesized that IPF-LTRs with short-TL and/or rare variants would be at increased risk for posttransplant hematologic complications.

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The Stanford Integrated Psychosocial Assessment for Transplant (SIPAT) is a standardized measure of the psychosocial risk profile of solid organ transplant candidates. While studies have found associations between this measure and transplant outcomes, to date this has not been examined in lung transplant recipients. We examined relations between pre-transplant SIPAT scores and 1-year lung transplant medical and psychosocial outcomes in a sample of 45 lung transplant recipients.

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Pneumonia imposes a significant clinical burden on people with immunocompromising conditions. Millions of individuals live with compromised immunity because of cytotoxic cancer treatments, biological therapies, organ transplants, inherited and acquired immunodeficiencies, and other immune disorders. Despite broad awareness among clinicians that these patients are at increased risk for developing infectious pneumonia, immunocompromised people are often excluded from pneumonia clinical guidelines and treatment trials.

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, the etiological agent for histoplasmosis, is a dimorphic fungus that grows as a mold in the environment and as a yeast in human tissues. The areas of highest endemicity lie within the Mississippi and Ohio River Valleys of North America and parts of Central and South America. The most common clinical presentations include pulmonary histoplasmosis, which can resemble community-acquired pneumonia, tuberculosis, sarcoidosis, or malignancy; however, certain patients can develop mediastinal involvement or progression to disseminated disease.

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Background: Psychosocial evaluations are mandatory for transplant listing, however the methodology for creating psychosocial risk stratifications is unclear. The Standford Psychosocial Integrated Psychosocial Assessment for Transplant Scale is the most commonly used instrument, however its interitem validity has never been examined.

Objective: To investigate the interitem validity of a psychosocial assessment tool for transplant candidates among a sample of thoracic transplant candidates.

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Background: We sought to describe trends in extracorporeal membrane oxygenation (ECMO) use, and define the impact on PGD incidence and early mortality in lung transplantation.

Methods: Patients were enrolled from August 2011 to June 2018 at 10 transplant centers in the multi-center Lung Transplant Outcomes Group prospective cohort study. PGD was defined as Grade 3 at 48 or 72 hours, based on the 2016 PGD ISHLT guidelines.

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The development of donor-specific antibodies (DSA) has a significant impact on graft outcome in solid organ transplantation. Mismatched HLAs are recognized directly and indirectly by the recipient immune system. Both pathways occur in parallel and result in the generation of plasma cells, DSA, cytotoxic and T helper lymphocytes.

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Sepsis is a significant cause of mortality in hospitalized patients. Concomitant development of acute kidney injury (AKI) increases sepsis mortality through unclear mechanisms. Although electrolyte disturbances and toxic metabolite buildup during AKI could be important, it is possible that the kidney produces a protective molecule lost during sepsis with AKI.

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Objectives: The Coronavirus Disease 2019 (COVID-19) pandemic has been associated with cases of refractory acute respiratory distress syndrome (ARDS) sometimes requiring support with extracorporeal membrane oxygenation (ECMO). Bivalirudin can be used for anticoagulation in patients on ECMO support, but its efficacy and safety in patients with COVID-19 is unknown. The authors set out to compare the pharmacologic characteristics and dosing requirements of bivalirudin in patients requiring ECMO support for ARDS due to COVID-19 versus ARDS from other etiologies.

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