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* From the Divisions of Pulmonary, Allergy and Critical Care Medicine (Drs. Arcasoy, Christie, and Kotloff and Ms. Blumenthal) and Cardiothoracic Surgery (Drs. Pochettino, Rosengard, and Bavaria), University of Pennsylvania Medical Center, Philadelphia, PA.
Correspondence to: Selim M. Arcasoy, MD, FCCP, Assistant Professor of Medicine, Hospital of the University of Pennsylvania, Pulmonary, Allergy and Critical Care Division, 832 West Gates, 3600 Spruce St, Philadelphia, PA 19104-4283; e-mail: arcasoy{at}mail.med.upenn.edu
Study objectives: To characterize the course of patients with advanced sarcoidosis who have been listed for lung transplantation and to identify prognostic factors for death while they are on the waiting list.
Design: Retrospective cohort study.
Setting: Tertiary-care university hospital.
Patients: Forty-three patients with sarcoidosis who have been listed for lung transplantation at the University of Pennsylvania Medical Center.
Methods: A multivariable explanatory analysis using a Cox proportional hazards model was performed to determine risk factors that are independently associated with mortality while patients await transplantation.
Results: Twenty-three of the 43 patients (53%) died while
awaiting transplantation. The survival rate of listed patients (as
determined by the Kaplan-Meier method) was 66% at 1 year, 40% at 2
years, and 31% at 3 years. In a univariate analysis, the following
factors were significantly associated with death on the waiting list:
PaO2 
60 mm Hg (relative risk [RR], 3.4;
95% confidence interval [CI], 1.2 to 9.3); mean pulmonary artery
pressure 
35 mm Hg (RR, 3.2; 95% CI, 1.1 to 9.5); cardiac index
2 L/min/m2 (RR, 2.8; 95% CI, 1.2 to 6.6), and right
atrial pressure (RAP) 15 mm Hg (RR, 7.6; 95% CI, 3.0 to 19.3).
Multivariable analysis revealed that RAP 15 mm Hg was the only
independent prognostic variable (RR, 5.2; 95% CI, 1.6 to 16.7;
p = 0.006). Twelve patients underwent lung transplantation. Survival
after transplantation determined by the Kaplan-Meier method was 62% at
both 1 and 2 years, and 50% at 3 years.
Conclusions: Patients with advanced sarcoidosis awaiting lung transplantation have a high mortality rate with a median survival of < 2 years. Mortality is most closely linked to elevated RAP. While earlier referral may diminish the mortality rate of patients on the waiting list for transplantation, further improvements in posttransplantation outcomes will be necessary to ensure that this procedure truly bestows a survival benefit.
Key Words: lung transplantation • mortality • pulmonary hypertension • sarcoidosis
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