Background: in Anorexia Nervosa (AN) renal failure is often underestimated, and the relationships of this complication to the degree and characteristics of malnutrition are poorly investigated. Aim of the study: to evaluate glomerular filtration rate calculated by the Cockroft-Gault formula in a group of subjects with AN and analyze its relationship with anamnestic data, Body Mass Index (BMI), clinical, biochemical and bioimpedance data. Materials and methods: we evaluated 52 female subjects between 11 and 36 years old, who were consecutively admitted to the Day Hospital Unit of the Eating Disorder Center of Azienda Ospedale-Universtà of Padua and to the Day Hospital Unit of the Eating Disorder Center of Vicenza between February 2023 and August 2024. At admission, anamnestic data, weight and height, vital parameters, biochemical and bioimpedance data were collected. Results: 20 patients (38.4%) had normal glomerular filtration rate (GFR>90 mL/min), 29 patients (55.8%) had Stage 2 CKD (GFR 89-60 mL/min), and 3 patients (5.8%) had Stage 3A CKD (GFR 59-45 mL/min). In subjects with renal failure, BMI (t = -1.108; p < 0.001), BIA-derived Fat Free Mass (t = -2.559; p = 0.014) and Total Body Water (t = -2.180; p = 0.035), and blood glucose (t = -2.380; p = 0.021) were significantly lower, while albumin level was significantly higher (t = 2.281; p = 0.027). GFR correlated with BMI (r = 0.400; p = 0.003) and inversely correlated with AST (r = -0.286; p = 0.044), sodium (r = -0.282; p = 0.043), total protein (r = -0.320; p = 0.025) and albumin (r = -0.363; p = 0.01). There were no statistically significant correlations between renal function (GFR) and bioimpedance parameters as resistance (R), reactance (Xc) and phase angle (PhA). Conclusions: the results of our Study suggest that both hydration status (and therefore possible dehydration) and organic impairment, characteristic of most severe malnutrition, are involved in the onset of kidney damage in individuals with AN.
Background: nell'Anoressia Nervosa (AN) l'insufficienza renale è spesso sottostimata e sono poco indagate le relazioni di questa complicanza con l’entità e le caratteristiche della malnutrizione. Scopo dello studio: valutare il filtrato glomerulare calcolato con la formula di Cockroft-Gault in un gruppo di soggetti con AN ed analizzare la sua relazione con dati anmnestici, l'Indice di Massa Corporea (IMC) e parametri clinici, bioumorali e bioimpedenziometrici. Materiali e metodi: sono stati valutati 52 soggetti di sesso femminile tra gli 11 e i 36 anni ricoverati consecutivamente in regime di Day Hospital presso il Centro regionale per i DCA dell’Azienda Ospedale-Università di Padova ed il Centro provinciale per i DCA di Vicenza tra febbraio 2023 ed agosto 2024. All'ingresso sono stati raccolti i dati anamnestici, peso ed altezza, i parametri vitali, sono stati eseguiti esami bioumorali e la bioimpedenziometria (BIA). Risultati: 20 pazienti (38.4%) avevano un filtrato glomerulare normale (GFR>90 mL/min), 29 pazienti (55.8%) presentavano insufficienza renale di Stadio 2 (GFR 89-60 mL/min) e 3 pazienti (5.8%) presentavano insufficienza renale di Stadio 3A (GFR 59-45 mL/min). Nei soggetti con insufficienza renale sono risultati significativamente inferiori l'IMC (t = -1,108; p < 0,001), la Fat Free Mass (t = -2,559; p = 0,014) e la Total Body Water (t = -2,180; p = 0,035) derivate dalla BIA e la glicemia (t = -2,380; p = 0,021), mentre l'albuminemia è risultata significativamente più elevata (t = 2,281; p = 0,027). La GFR è risultata correlata all’IMC (r = 0,400; p = 0,003) ed inversamente correlata ad AST (r = -0,286; p = 0,044), sodio (r = -0,282; p = 0,043), proteine totali (r = -0,320; p = 0,025) ed albumina (r = -0,363; p = 0,01). Non si sono evidenziate correlazioni statisticamente significative tra la funzionalità renale (GFR) ed i parametri bioimpedenziometrici resistenza (R), reattanza (Xc) ed angolo di fase (PA). Conclusioni: i risultati del nostro Studio suggeriscono che nell’insorgenza del danno renale nei soggetti con AN siano coinvolti sia lo stato di idratazione (e quindi la presenza di eventuale disidratazione) che la compromissione organica stessa tipica della malnutrizione più grave.
Anoressia nervosa: rapporto tra funzionalità renale e parametri clinici, bioumorali e bioimpedenziometrici
COLANTONIO, SERGIO
2023/2024
Abstract
Background: in Anorexia Nervosa (AN) renal failure is often underestimated, and the relationships of this complication to the degree and characteristics of malnutrition are poorly investigated. Aim of the study: to evaluate glomerular filtration rate calculated by the Cockroft-Gault formula in a group of subjects with AN and analyze its relationship with anamnestic data, Body Mass Index (BMI), clinical, biochemical and bioimpedance data. Materials and methods: we evaluated 52 female subjects between 11 and 36 years old, who were consecutively admitted to the Day Hospital Unit of the Eating Disorder Center of Azienda Ospedale-Universtà of Padua and to the Day Hospital Unit of the Eating Disorder Center of Vicenza between February 2023 and August 2024. At admission, anamnestic data, weight and height, vital parameters, biochemical and bioimpedance data were collected. Results: 20 patients (38.4%) had normal glomerular filtration rate (GFR>90 mL/min), 29 patients (55.8%) had Stage 2 CKD (GFR 89-60 mL/min), and 3 patients (5.8%) had Stage 3A CKD (GFR 59-45 mL/min). In subjects with renal failure, BMI (t = -1.108; p < 0.001), BIA-derived Fat Free Mass (t = -2.559; p = 0.014) and Total Body Water (t = -2.180; p = 0.035), and blood glucose (t = -2.380; p = 0.021) were significantly lower, while albumin level was significantly higher (t = 2.281; p = 0.027). GFR correlated with BMI (r = 0.400; p = 0.003) and inversely correlated with AST (r = -0.286; p = 0.044), sodium (r = -0.282; p = 0.043), total protein (r = -0.320; p = 0.025) and albumin (r = -0.363; p = 0.01). There were no statistically significant correlations between renal function (GFR) and bioimpedance parameters as resistance (R), reactance (Xc) and phase angle (PhA). Conclusions: the results of our Study suggest that both hydration status (and therefore possible dehydration) and organic impairment, characteristic of most severe malnutrition, are involved in the onset of kidney damage in individuals with AN.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/78618