F M Hollander1, D D van Pierre2, N M de Roos2, E A van de Graaf3, J A Iestra4. 1. Internal Medicine and Dermatology, Department of Dietetics, University Medical Center Utrecht, The Netherlands; Cystic Fibrosis and Lung Transplantation Center, University Medical Center Utrecht, The Netherlands. Electronic address: F.Hollander@umcutrecht.nl. 2. Division of Human Nutrition, Wageningen University, The Netherlands. 3. Cystic Fibrosis and Lung Transplantation Center, University Medical Center Utrecht, The Netherlands. 4. Julius Centre for Health Sciences and Primary Care, Department of Public Health, University Medical Center Utrecht, The Netherlands.
Abstract
BACKGROUND: This study retrospectively investigated nutritional status, dietetic intervention and intake in Cystic Fibrosis (CF) patients before and after lung transplantation (LTX). METHODS: Body Mass Index (BMI), Fat Free Mass Index (FFMI) and nutritional intake were retrieved from 75 out-patients aged 15-53 years. Patients were seen every 3-4 months during the waiting list time (range 0-81 months) and up to 116 months after LTX. Survival was measured in months. RESULTS: The median BMI at baseline was 19.2 kg/m(2) (range: 15.3 to 28.4 kg/m(2)) with 29 patients (39%) below ≤18.5 kg/m(2). FFMI (measured in 65 patients) had a median of 15.2 kg/m(2) (range: 11.1 to 22.4 kg/m(2)) with 39 patients (60%) ≤16.7 kg/m(2) (men) or ≤14.6 kg/m(2) (women). Median energy intake was 2800 kcal, 239 kcal higher than the estimated energy requirement. However, 8 patients consumed ≥500 kcal less than recommended. Protein intake was 104 (range 60-187) g or 1.9 g/kg per day. Despite dietetic intervention with oral nutritional supplements (ONS) (36 patients), tube feeding (12 patients), or both (13 patients), BMI and FFMI hardly improved pre-LTX. LTX was performed in 51 patients (68%); 10 patients died during follow-up, median survival time was 41 months. A BMI ≤18.5 kg/m(2) was more prevalent in patients who died before LTX (6/9) or who died after LTX (4/10) than in patients who were still alive on the waiting list (5/15) or who survived LTX (14/41). Results for FFMI were comparable. From 6-12 months post-LTX, BMI and FFMI markedly improved, especially in underweight patients. CONCLUSION: A BMI ≤18.5 kg/m(2) and an FFMI ≤16.7 kg/m(2) (men) or ≤14.6 kg/m(2) (women) appears to impair survival in LTX candidates with CF. Patients maintained a low body weight before LTX. After LTX weight gain is achieved.
BACKGROUND: This study retrospectively investigated nutritional status, dietetic intervention and intake in Cystic Fibrosis (CF) patients before and after lung transplantation (LTX). METHODS: Body Mass Index (BMI), Fat Free Mass Index (FFMI) and nutritional intake were retrieved from 75 out-patients aged 15-53 years. Patients were seen every 3-4 months during the waiting list time (range 0-81 months) and up to 116 months after LTX. Survival was measured in months. RESULTS: The median BMI at baseline was 19.2 kg/m(2) (range: 15.3 to 28.4 kg/m(2)) with 29 patients (39%) below ≤18.5 kg/m(2). FFMI (measured in 65 patients) had a median of 15.2 kg/m(2) (range: 11.1 to 22.4 kg/m(2)) with 39 patients (60%) ≤16.7 kg/m(2) (men) or ≤14.6 kg/m(2) (women). Median energy intake was 2800 kcal, 239 kcal higher than the estimated energy requirement. However, 8 patients consumed ≥500 kcal less than recommended. Protein intake was 104 (range 60-187) g or 1.9 g/kg per day. Despite dietetic intervention with oral nutritional supplements (ONS) (36 patients), tube feeding (12 patients), or both (13 patients), BMI and FFMI hardly improved pre-LTX. LTX was performed in 51 patients (68%); 10 patients died during follow-up, median survival time was 41 months. A BMI ≤18.5 kg/m(2) was more prevalent in patients who died before LTX (6/9) or who died after LTX (4/10) than in patients who were still alive on the waiting list (5/15) or who survived LTX (14/41). Results for FFMI were comparable. From 6-12 months post-LTX, BMI and FFMI markedly improved, especially in underweight patients. CONCLUSION: A BMI ≤18.5 kg/m(2) and an FFMI ≤16.7 kg/m(2) (men) or ≤14.6 kg/m(2) (women) appears to impair survival in LTX candidates with CF. Patients maintained a low body weight before LTX. After LTX weight gain is achieved.
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