Raw data supporting the patients’ long-term body weight gain findings in different study groups

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Background. After kidney transplantation body weight gain (WG) in patients generally increases and this can be influenced by improved appetite and reversal of the uremic state. Because of a lack of evidence for effective interventions that prevent body WG after kidney transplantation, Ryan et al . recently published a randomized controlled trial design in BMC Nephrology to assess the effects of intensive nutrition interventions on WG and metabolic parameters. Here we are demonstrating a part of a study performed at our transplantation centre where we also performed an intensive nutritional counselling intervention on kidney recipients. We hypothesised that kidney transplant (KTx) patients who received intensive counselling may have better long-term weight control compared with patients who did not receive such counselling. Methods. During intensive counselling the dietician took into consideration the results of anthropometry, densitometry, biochemistry, food frequency questionnaire and an analysis of 3-day dietary records. Anthropometrical measurements were assessed at 18 months, 36 months, and, finally, 10 years after the kidney transplantation. Results. We noticed WG in all KTx patients (n=56) both in males and females, as follows: in the standard care group the mean WG in males (N=21) was 6.4 kg, females (N=15) 7.0 kg and among intensively counselled males (N=9) 4.6 kg, females (N=11) 1.1 kg. Statistically non-significant weight change was found among counselled living KTx patients with long-term graft survival both in males (p=0.0680) and females ( p=0.3166) which was registered 10 years after the KTx compared with the first measurement mean weight. Among standard care control KTx patients, weight change was statistically significant in both males and females (males: p=0.0016; females: p=0.0040) 10 years after the KTx. Conclusions. The long-term WG data clearly showed that in our population of KT patients, the patients who received intensive individual dietary counselling had much more educated behaviour in the long-term, thereby preventing WG which is a well-known risk factor for long-term graft failure as well as for cardiovascular complications and mortality.

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