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Modificazioni dell’intake calorico e del comportamento alimentare dopo sleeve gastrectomy
No full textL’excess weight loss (%EWL) medio a 3-5 anni dopo Sleeve Gastrectomy Laparoscopica (LSG), è
del 60%. La riduzione del volume gastrico ha un ruolo centrale nella perdita di peso post-operatoria,tuttavia diversi studi indicano che, anche il cambiamento delle abitudini alimentari nei pazienti, possa contribuire al calo ponderale. E’ stato dimostrato che diversi pazienti dopo intervento di chirurgia bariatrica, cambino le loro preferenze alimentari verso cibi a bassa densità calorica. La diminuzione nell’assunzione di cibi ad alto contenuto lipidico e di dolci, suggerisce che alcuni interventi bariatrici possano influenzare le scelte alimentari. Gli obiettivi di questo studio prospettico sono: valutare la riduzione quantitativa dell’introito calorico giornaliero e i cambiamenti nelle abitudini alimentari 1 anno dopo LSG utilizzando un Suter Questionnaire modificato. Si è inoltre analizzata la relazione tra la perdita di peso e il cambiamento del gusto e delle abitudini alimentari.The excess weight loss (% EWL) 3-5 years after laparoscopic sleeve gastrectomy (LSG) is 60%. Gastric volume reduction has a central role in post-operative weight loss, however several studies indicate that change in eating habits may also contribute to weight loss. Most of the patients, after bariatric surgery, change their food preferences to low-calorie foods. The decrease of sweets and lipid food intake after surgery suggests that bariatric surgery may influence diet choices. The aim of this prospective study was to evaluate the quantitative reduction of daily calorie absorption and changes in eating habits 1 year after LSG using a modified Suter Questionnaire
Alcohol consumption after laparoscopic sleeve gastrectomy. 1-year results
No full textAbstract
Introduction Laparoscopic sleeve gastrectomy (SG) represents, at present, the most performed bariatric procedure worldwide
with excellent long-term results on weight loss and comorbidities control. After the gastrectomy procedure, together with
hormonal modification, several changes in taste and habits occur, including the potential modification in alcohol consumption.
The aim of this prospective study was to determine the frequency and the amount of alcohol use before and after SG using
a modified version of the Alcohol Use Disorder Identification Test (AUDIT) at 1-year follow-up and eventually to evaluate
relationships between different ages and sexes.
Materials and methods A total of 142 patients were prospectively enrolled and evaluated before and 1 year after SG with a
modified AUDIT. The exclusion criteria were as follows: history of alcohol abuse, presence of psychopathology or cognitive
impairments, diabetes mellitus type II decompensated, or previous gastrointestinal, liver, and pancreatic resective surgery.
Subgroup analyses were performed between male and female and between under and over 40 years old.
Results The median AUDIT score decreased from 2.70 (range 1–18) before surgery to 1.38 (range 1–7) after 1 year of SG,
indicating a marked reduction in alcohol use. The most consumed alcoholic drink was beer (36.6%/n = 52) while after surgery
the consumption of beer decreased considerably (21.1%/n = 30). The frequency of alcohol consumption also decreased: at
baseline 45% of patients consumed alcoholic drinks “from 2 to 4 times per month”, whereas 26 and 39.4% consumed alcohol
“never” and “less than once a month,” respectively. After surgery, nobody consumed more then six alcoholic drinks. No
differences were found between the subgroups in terms of alcohol consumption and social behavior.
Conclusions The alcohol preference is modified and decreased 1 year after SG and this could be related to the strict nutritional
follow-up and to the hormonal changes. Studies with large samples and long-term follow-up are needed to confirm our
Il ruolo del “gruppo psico-educazionale” quale strumento interattivo nel percorso del paziente candidato a chirurgia bariatrica. Valutazione prospettica di un programma sperimentale
No full textLa chirurgia bariatrica laparoscopica rappresenta il gold standard nel trattamento dell’obesità patologica. Tuttavia, nonostante i benefici intermini di calo ponderale e riduzione delle comorbidità obesità-correlate, il 20% - 30% dei pazienti non raggiunge la perdita di peso attesa e/o non mantiene il peso perso a lungo termine. I possibili fattori correlati possono essere scarsa adherence e l’acquisizione, o il persistere, di abitudini alimentari disfunzionali associate a disturbi psicopatologici. Il presente studio prospettico ha l’obiettivo di valutare l’efficacia di un gruppo psicologico di sostegno interattivo sugli outcome clinici (calo ponderale e sintomatologia psicopatologica a medio termine)Bariatric surgery represents the gold standard intervention to treat morbid obesity. Despite the benefits of weight loss and obesity-related, comorbidities resolution, 20% -30% of patients do not achieve expected weight loss. Possible related factors may be poor adherence and the acquisition, or persistence, of dysfunctional eating pattern associated with psychopathological treats. The present study aims to evaluate the effectiveness of a psychological support group on clinical outcomes (weight loss and psychopathological symptoms in the medium term
Food intake and changes in eating behavior after laparoscopic sleeve gastrectomy
No full textAbstract Background Laparoscopic sleeve gastrectomy (LSG) results in reduced calorie intake and weight loss. Whether patients consume the same types of food before and after surgery or whether they reduce the volume and calorie density of the foods they consume remains unknown. Objectives The aim of this prospective study was to evaluate the changes in daily caloric and macronutrient intake after LSG and the relation between changes of taste and food tolerance over 2 years. Methods Thirty morbidly obese patients with median body mass index (BMI) of 43.9 kg/m2 (39.5–57.3) were prospectively enrolled prior to LSG. Weight, BMI, %EWL, weight loss percentage (%WL), and daily intake were evaluated preoperatively at 1, 3, 6, 12, and 24 months after surgery along with a questionnaire evaluating food choices, quality of
eating, tolerance of certain types of food, frequency of vomiting, and changes in taste. Results The median %EWL and %WL at 12 and 24 months was 65 % (33.9–93.6 %), 27.3 % (14.2–45.5 %) and 71.5 % (39.6–101.1%),31%(19.1–50.3%)respectively.Sixmonths after surgery, the dailycaloric intakereduced by68% and the reduction was maintained until 24 months. The median score of the eating questionnaire was 18 (10–27) at 6 months, 22 (16–26) at 12 months, and 23 (10–27) at 24 months, suggesting that the quality of nutrition improved over time. At 6, 12, and 24 months, 75 % of the patients reported changes in taste with reduced interest in sweets, high fat food, and alcoholic drinks. However, at 24 months, 20 % of patients reported a heightened interest in sweets compared to 12 months previously. Conclusions LSG reduced calorie intake both through volume of food and the calorie density of the food consumed. The mechanisms for the changes in food preferences may involve both unconditioned and conditioned effects. The influence of dietary counseling on learning which foods are consumed still requires further exploration.
Keywords Foodintake .Eatingbehavior .Sleeve gastrectomy
Introduction
Bariatric surgery is the most effective long-term treatmen
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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