Johane P. Allard

Clinical approaches to non-alcoholic fatty liver disease

Non-alcoholic fatty liver disease (NAFLD) ranges from simple steatosis to nonalcoholic steatohepatitis (NASH), leading to fibrosis and potentially cirrhosis, and it is one of the most common causes of liver disease worldwide. NAFLD is associated with other medical conditions such as metabolic syndrome, obesity, cardiovascular disease and diabetes. NASH can only be diagnosed through liver biopsy, but noninvasive techniques have been developed to identify patients who are most likely to have NASH or fibrosis, reducing the need for liver biopsy and risk to patients. Disease progression varies between individuals and is linked to a number of risk factors. Mechanisms involved in the pathogenesis are associated with diet and lifestyle, influx of free fatty acids to the liver from adipose tissue due to insulin resistance, hepatic oxidative stress, cytokines production, reduced very low-density lipoprotein secretion and intestinal microbiome. Weight loss through improved diet and increased physical activity has been the cornerstone therapy of NAFLD. Recent therapies such as pioglitazone and vitamin E have been shown to be beneficial. Omega 3 polyunsaturated fatty acids and statins may offer additional benefits. Bariatric surgery should be considered in morbidly obese patients. More research is needed to assess the impact of these treatments on a long-term basis. The objective of this article is to briefly review the diagnosis, management and treatment of this disease in order to aid clinicians in managing these patients.

Effects of ascites resolution after successful TIPS on nutrition in cirrhotic patients with refractory ascites

OBJECTIVE:Malnutrition is common in patients with decompensated cirrhosis and refractory ascites. The use of transjugular intrahepatic portosystemic stent shunt (TIPS) is effective in eliminating ascites. The purpose of this study was to investigate the effect of TIPS and resolution of refractory ascites on the nutritional status of patients with decompensated cirrhosis.METHODS:Fourteen consecutive patients with refractory ascites and a Pugh score of 9.0 ± 0.5 had a TIPS insertion. Biochemical data, resting energy expenditure (REE), total body nitrogen (TBN), body potassium (TBK), body fat (TBF), muscle force (MF), and food intake were recorded before TIPS, and at 3 and 12 months after the procedure.RESULTS:Ten patients completed the study. Baseline values for REE, TBN, TBF, MF, and energy intake were below normal at baseline. There was a significant increase in dry weight, TBN, and REE at 3 and 12 months compared with baseline. TBF improved significantly at 12 months. There was a trend toward an increase in energy intake (p = 0.072). There was no change in protein intake, TBK, MF, and Pugh score.CONCLUSION:In cirrhotic patients with refractory ascites, resolution of the ascites after TIPS placement resulted in improvement of several nutritional parameters, especially for body composition.

Physicians’ Perceptions Regarding the Detection and Management of Malnutrition in Canadian Hospitals: Results of a Canadian Malnutrition Task Force Survey

OBJECTIVES Since malnutrition is common in Canadian hospitals, physicians frequently encounter patients with significantly impaired nutrition status. The objective of this study was to determine physician attitudes and perceptions regarding the detection and management of malnutrition in Canadian hospitals. MATERIALS AND METHODS A survey based on a previously developed questionnaire that focused on guidelines for nutrition support of hospitalized patients was completed by Canadian physicians working on wards in the 18 hospitals participating in the Canadian Malnutrition Task Force study. Data were analyzed descriptively and according to ward (medical vs surgical) and hospital type (academic vs community). RESULTS The survey was completed by 428 of the 1220 physicians who were provided with a questionnaire and asked to participate (response rate 35%). While physicians believe that nutrition assessment should be performed at admission (364/419 [87%]), during hospitalization (363/421 [86%]), and at discharge (327/418 [78%]), most felt that this was not being done on a regular basis (admission, 140/423 [33%]; during hospitalization, 175/423 [41%]; at discharge, 121/424 [29%]). Similarly there was a gap between what was perceived to be the ideal management of hospital-related malnutrition and current practices. Physicians felt that the teams nutrition education and use of dietetic resources could be increased, and although their nutrition knowledge was limited, they felt that hospital-associated malnutrition was very relevant to the care they provided. CONCLUSIONS A multidisciplinary team is needed to address hospital malnutrition, and educational strategies that target physicians are needed to promote better detection and management throughout the hospital stay.

Predictors of dietitian consult on medical and surgical wards.

BACKGROUND & AIM Guidelines promote dietitian consult (DC) for nutrition support. In Canada, dietitians are involved in the assessment of malnutrition and provide specialized dietary counseling. It is unknown however, what leads to a DC for patients fed orally. This study identifies independent predictors for a DC and determines what is the proportion of malnourished patients seeing a dietitian. METHODS The Canadian Malnutrition Task Force conducted a prospective cohort study in medical and surgical wards of 18 Canadian hospitals. 947 patients who did not receive enteral or parenteral nutrition were analyzed. At admission, subjective global assessment (SGA), body mass index, patient demography were collected. During hospitalization clinical data, including dietary intake and presence of a DC were obtained. Multivariate logistic regression was completed with dietitian consult ≤ 3 days and 4 + days as the outcome variables. RESULTS The prevalence of malnutrition (SGA B + C) was 45%. Dietitians were consulted for 23% of patients, and of these consults 44% were well nourished (SGA-A), 37% were mildly/moderately malnourished (SGA-B), and 19% were severely malnourished (SGA-C). DC missed 75% of the SGA-B and 60% of SGA-C patients. Predictors of consultation within 3 days of hospitalization were: renal diet (OR 5.75) modified texture diet (OR 5.38), metabolic diagnosis (3.91), ONS use pre-admission (OR 2.33), severe malnutrition (SGA-C, OR 1.88) and age (OR 0.98). Predictors for 4 + days were: dysphagia (OR 11.4), a new medical diagnosis (OR 2.3), severe malnutrition (OR 2.17), constipation (OR 2.16), more than one diagnosis (OR 1.8), antibiotic use (OR 1.6), and male gender (OR 1.6). Consuming < 50% of food in the first week was not a predictor as only 19% of those with low intake had a DC at 4 + days. CONCLUSIONS Overall predictors of DC were appropriate but SGA B and C patients and those eating <50% were missed. Screening at admission with algorithms of care that include referral to the dietitian are needed to improve the process of nutrition care.

Patient-reported dietetic care post hospital for free-living patients: a Canadian Malnutrition Task Force Study

BACKGROUND Transitions out of hospital can influence recovery. Ideally, malnourished patients should be followed by someone with nutrition expertise, specifically a dietitian, post discharge from hospital. Predictors of dietetic care post discharge are currently unknown. The present study aimed to determine the patient factors independently associated with 30-days post hospital discharge dietetic care for free-living patients who transitioned to the community. METHODOLOGY Nine hundred and twenty-two medical or surgical adult patients were recruited in 16 acute care hospitals in eight Canadian provinces on admission. Eligible patients could speak English or French, provide their written consent, were anticipated to have a hospital stay of ≥2 days and were not considered palliative. Telephone interviews were completed with 747 (81%) participants using a standardised questionnaire to determine whether dietetic care occurred post discharge; 544 patients discharged to the community were included in the multivariate analyses, excluding those who were admitted to nursing homes or rehabilitation facilities. Covariates during and post hospitalisation were collected prospectively and used in logistic regression analyses to determine independent patient-level predictors. RESULTS Dietetic care post discharge was reported by 61/544 (11%) of participants and was associated with severe malnutrition [Subjective Global Assessment category C: odds ratio (OR) 2.43 (1.23-4.83)], weight loss post discharge [(OR 2.86 (1.45-5.62)], comorbidity [(OR 1.09 (1.02-1.17)] and a dietitian consultation on admission [(OR 3.41 (1.95-5.97)]. CONCLUSIONS Dietetic care post discharge occurs in few patients, despite the known high prevalence of malnutrition on admission and discharge. Dietetic care in hospital was the most influential predictor of post-hospital care.

Quality of Life Analysis During Transition From Stationary to Portable Infusion Pump in Home Parenteral Nutrition Patients: A Canadian Experience

BACKGROUND Quality of life (QOL) of patients receiving home parenteral nutrition (HPN) may be impacted by device technology. Historically, our HPN patients used pole-mounted pumps which can hinder activities and affect QOL. METHODS Patients receiving HPN with a pole-mounted pump completed Short Form 36 (SF-36®) and pump-specific questionnaires. Patients were then enrolled in a 2-month prospective crossover open study. Patients were randomized to use a pole-mounted pump or a portable pump. After 1 month, each arm crossed over. Measurements were repeated at 4 and 8 weeks. RESULTS Participants included 5 males, 15 females; age 52.8 ± 3.3 (mean ± SEM) years; 50% had short bowel syndrome; received HPN for 83.3 ± 15.9 months; infused HPN over 11.2 ± 0.3 hours/day; 4.3 ± 0.4 days/week. Portable pump users scored 53.75 ± 5.64, 61.25 ± 6.14, and 40.31 ± 4.94 in SF-36v2 physical, social, and health vitality, respectively, while the stationary pump users scored 45.50 ± 4.82, 55.00 ± 5.97, and 35.31 ± 4.63, respectively (NS). They reported ease of movement between rooms (4.11 ± 0.21 vs 1.44 ± 0.20; P = .001); when traveling (5.00 ± 0.00 vs 3.00 ± 0.45; P < .02) (1 = very difficult, 5 = very easy); 5.0% were sleep disturbed with the portable compared to 42.1% with pole-mounted pump (P < .04). Overall, patients were significantly happier with the portable vs pole-mounted pump (4.53 ± 0.19 vs 2.68 ± 0.22; P < .001) (1 = very unhappy, 5 = very happy). CONCLUSION Our HPN patients reported improved happiness and satisfaction regarding ease of use and function with a portable vs pole-mounted pump.

RESPONSE LETTER TO DR. HEMILÄ

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