COPD · 2015
Lung Transplantation in Alpha-1-Antitrypsin Deficiency.
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Stone Helen Marie, Edgar Ross Gareth, Thompson Richard Damian, Stockley Robert Andrew
Аннотация
BACKGROUND: Lung transplantation is a therapeutic option for patients with end-stage lung disease and a survival benefit has been described in patients with alpha-1-antitrypsin deficiency (A1ATD). The aims of the current study were to determine the survival and health benefits of lung transplantation in UK patients with A1ATD compared to carefully matched non-transplant patients.
METHODS: Patients with the PiZZ (alpha-1-antitrypsin deficiency) genotype who had undergone lung transplantation between 1996 and 2011 were identified from the UK A1ATD registry. Lung physiology, health status and survival were compared pre- and post-transplant using carefully matched non-transplant patients.
RESULTS: Thirty-two A1ATD patients who had undergone lung transplant were identified. Lung function decline pre-transplant was not different to the closely matched non-transplanted cohort. The transplant group pre-transplant, although matched for FEV1, had lower gas transfer measurements, (mean KCO% predicted 41.0% SE ± 3.86 vs 55.6% SE ± 3.10 p < 0.001) and worse health status (SGRQ mean score 64.2 SE ± 2.5 vs 55.3 SE ± 2.0, p < 0.001). Post-transplant, physiology and health status improved significantly (p < 0.002). However, the post-operative mortality over 5 years was no better than for a second group of non-transplant patients further matched for gas transfer or a third group also matched for SGRQ.
CONCLUSION: Patients who underwent lung transplant had lower gas transfer and quality-of-life pre-transplant compared to non-transplant patients matched for FEV1, age and sex, suggesting that these parameters provide extra information helpful in decision making. Lung transplantation for A1ATD patients significantly improves quality-of-life but not survival.
METHODS: Patients with the PiZZ (alpha-1-antitrypsin deficiency) genotype who had undergone lung transplantation between 1996 and 2011 were identified from the UK A1ATD registry. Lung physiology, health status and survival were compared pre- and post-transplant using carefully matched non-transplant patients.
RESULTS: Thirty-two A1ATD patients who had undergone lung transplant were identified. Lung function decline pre-transplant was not different to the closely matched non-transplanted cohort. The transplant group pre-transplant, although matched for FEV1, had lower gas transfer measurements, (mean KCO% predicted 41.0% SE ± 3.86 vs 55.6% SE ± 3.10 p < 0.001) and worse health status (SGRQ mean score 64.2 SE ± 2.5 vs 55.3 SE ± 2.0, p < 0.001). Post-transplant, physiology and health status improved significantly (p < 0.002). However, the post-operative mortality over 5 years was no better than for a second group of non-transplant patients further matched for gas transfer or a third group also matched for SGRQ.
CONCLUSION: Patients who underwent lung transplant had lower gas transfer and quality-of-life pre-transplant compared to non-transplant patients matched for FEV1, age and sex, suggesting that these parameters provide extra information helpful in decision making. Lung transplantation for A1ATD patients significantly improves quality-of-life but not survival.