Application criteria of enteral nutrition in patients with anorexia nervosa: correlation between clinical and psychological data in a "lifesaving" treatment

Adding mini meals to a nasogastric refeeding protocol for patients with eating disorders can be achieved on general hospital wards

BACKGROUND

Treatment of medically compromised patients with eating disorders is difficult in general hospital wards. There is currently no consensus on the best feeding method; however, previous research has demonstrated the safety of using enteral feeding. Because an oral diet has benefits on psychological and behavioural pathways, concurrent feeding requires further investigation. The present study aimed to examine acceptability and safety of implementing mini meals to a previously nil-by-mouth 7-day enteral feeding protocol.

METHODS

This was mixed methods research including a retrospective observational study and participant survey. Patients admitted to a tertiary hospital in Brisbane, Australia, between July 2020 and March 2021 were eligible. Eligible participants were provided mini meals from day 5. Type and quantity of meals consumed alongside clinical incident data were collected. The survey examined acceptability of mini meals. Descriptive statistics were used to interpret findings. Content analyses were conducted on survey responses.

RESULTS

Sixty-four participants (95%, n = 57/60 female, 25.2 ± 8.9 years; 75%, n = 45/60 diagnosed with anorexia nervosa) were included. At least half of the participants consumed some or all of the mini meals at each meal period. No clinical incidents were reported. Twenty-six (50%, n = 26/52) surveys were returned. Half (54%, n = 14/26) agreed-strongly agreed that mini meals improved their experience. Eleven participants desired more choice in menu items.

CONCLUSIONS

The present study found that introducing mini meals into an enteral feeding protocol is acceptable and safe for patients with eating disorders. Participants reported benefits in returning to eating; however, some items on the menu require reconsideration to enable increased consumption.

Ethical tensions in the treatment of youth with severe anorexia nervosa

Treatment of anorexia nervosa poses a moral quandary for clinicians, particularly in paediatrics. The challenges of appropriately individualising treatment while balancing prospective benefits against concomitant harms are best highlighted through exploration and discussion of the ethical issues. The purpose of this Viewpoint is to explore the ethical tensions in treating young patients (around ages 10-18 years) with severe anorexia nervosa who are not capable of making treatment-based decisions and describe how harm reduction can reasonably be applied. We propose the term AN-PLUS to refer to the subset of patients with a particularly concerning clinical presentation-poor quality of life, lack of treatment response, medically severe and unstable, and severe symptomatology-who might benefit from a harm reduction approach. From ethics literature, qualitative studies, and our clinical experience, we identify three core ethical themes in making treatment decisions for young people with AN-PLUS: capacity and autonomy, best interests, and person-centred care. Finally, we consider how a harm reduction approach can provide direction for developing a personalised treatment plan that retains a focus on best interests while attempting to mitigate the harms of involuntary treatment. We conclude with recommendations to operationalise a harm reduction approach in young people with AN-PLUS.

A systematic review of enteral feeding by nasogastric tube in young people with eating disorders

BACKGROUND

Adolescents with severe restrictive eating disorders often require enteral feeding to provide lifesaving treatment. Nasogastric feeding (NG) is a method of enteral nutrition often used in inpatient settings to treat medical instability, to supplement poor oral intake or to increase nutritional intake. This systematic review sets out to describe current practice of NG in young people with eating disorders.

METHODS

A systematic review following PRISMA guidelines was conducted by searching AMED, EMBASE and MEDLINE databases from 2000 to 2020. Inclusion terms were: enteral feeding by nasogastric tube, under 18 years, eating disorders, and primary research. Exclusion terms: psychiatric disorders other than eating disorders; non-primary research; no outcomes specific to NG feeding and participants over 18 years. Titles and abstracts were screened by all authors before reviewing full length articles. Quality assessment, including risk of bias, was conducted by all authors.

RESULTS

Twenty-nine studies met the full criteria. 86% of studies were deemed high or medium risk of bias due to the type of study: 34.4% retrospective cohort and 10.3% RCT; 17.2% were qualitative. Studies identified 1) a wide range of refeeding regimes depending on country, settings, and the reason for initiation; 2) standard practice is to introduce Nasogastric feeds (NG) if medically unstable or oral intake alone is inadequate; 3) NG may enable greater initial weight gain due to increased caloric intake; 4) there are 3 main types of feeding regime: continuous, nocturnal and bolus; 5) complications included nasal irritation, epistaxis, electrolyte disturbance, distress and tube removal; 6) where NG is routinely implemented to increase total calorie intake, length of stay in hospital may be reduced; however where NG is implemented in correlation to severity of symptoms, it may be increased; 7) both medical and psychiatric wards most commonly report using NG in addition to oral intake.

CONCLUSIONS

NG feeding is a safe and efficacious method of increasing total calorie intake by either supplementing oral intake or continuously. There are currently no direct comparisons between continuous, nocturnal or bolus regimes, which may be used to direct future treatment for YP with ED.

The use of enteral nutrition in the treatment of eating disorders: a systematic review

PURPOSE

Enteral nutrition (EN) is frequently used in the treatment of anorexia nervosa (AN), and less commonly, bulimia nervosa (BN); yet, no standardized guidelines for treatment exist at this time. The aim of this review is to investigate the efficacy of EN in the treatment of eating disorders and make recommendations for clinical practice and future research.

METHODS

An exhaustive literature search of 7 databases was completed. The search strategy combined key terms anorexia nervosa, bulimia, and eating disorders with terms associated with EN. There were no restrictions on publication date or language. Studies that assessed the effect of EN on weight restoration, refeeding syndrome, and binge/purge behaviors in the treatment of AN and BN were included.

RESULTS

Of 73 full-text articles reviewed, 22 met inclusion criteria. Nineteen studies reported that significant short-term weight gain was achieved when EN was used for refeeding malnourished AN patients; however, results varied for the six studies reporting on long-term weight gain, maintenance, and recovery. In studies with a comparator, no significant differences were found between the EN and oral refeeding cohorts regarding gastrointestinal disturbance, refeeding syndrome, or electrolyte abnormalities. Five studies examined the effect of EN on binge/purge behaviors, suggesting that temporary exclusive EN decreases the frequency and severity of binge/purge episodes.

CONCLUSION

Although EN is an essential life-saving treatment in severe cases of AN, it does not guarantee long-term success or recovery. The results of this systematic review highlight the need for prospective controlled trials with adequate sample sizes to make comparisons between specific feeding methods, formulations, and defined short and long-term outcomes. Evidence-based standards for clinical practice are needed with specific guidelines for best results for AN and BN treatment.

LEVEL OF EVIDENCE

I, systematic review.

Nasogastric Tube Feeding for Individuals With Anorexia Nervosa: An Integrative Review

BACKGROUND

The use of nasogastric (NG) feeding in individuals with anorexia nervosa (AN) is endorsed by national professional organizations; however, no guidelines currently exist.

OBJECTIVES

The objectives of this review were to identify and evaluate outcomes of NG feedings for individuals with AN and to develop recommendations for future research, policy, and practice.

DESIGN

An integrative review of the research literature was conducted.

RESULTS

Of the 19 studies reviewed, all indicated short-term weight gain following NG feeding. Four studies examined adherence; nearly 30% of subjects were nonadherent as evidenced by tube manipulation. Seven studies reported psychiatric outcomes, suggesting NG feeding reduces eating disorder behaviors but not overall symptomology.

CONCLUSIONS

NG feeding promotes short-term weight gain; however, long-term outcomes are poorly understood. Future research, using rigorous methods, is still needed to inform practice.

A review of feeding methods used in the treatment of anorexia nervosa

BACKGROUND

Clear evidence based guidelines on the best and safest method of achieving and maintaining normal body weight during inpatient treatment of Anorexia Nervosa (AN) are currently not available. Oral feeding with food alone, high-energy liquid supplements, nasogastric feeding and parenteral nutrition all have the potential to achieve weight gain in the treatment of AN but the advantages and disadvantages of each method have not been comprehensively evaluated. A literature search was undertaken to identify papers describing feeding methods used during inpatient treatment of AN. The selection criteria searched for papers that described the feeding method; and reported weight change variables such as admission and discharge weight in kilograms, or Body Mass Index; or weight change over the course of inpatient treatment.

RESULTS

Twenty-six papers were identified, describing a total of 37 samples with a mean sample size of 58.9 participants, and a range from 6 to 318. The majority (84.6%) of papers were observational cohorts and retrospective chart reviews. The most common feeding method described was nasogastric feeding and food, then high-energy liquid supplements and food.

CONCLUSIONS

There is limited evidence on the efficacy of feeding methods used in the refeeding and nutritional rehabilitation of AN, therefore no conclusion can be made about the most effective method of achieving weight gain during inpatient treatment. While there are a number of papers exploring this issue there is no consistency in the way the information is reported to enable comparisons between the different methods. There is an urgent need for research in this area to guide decision-making in the inpatient management, refeeding and nutritional rehabilitation of AN.

Use of gastrostomy tubes in children and adolescents with eating disorders and related illnesses

PURPOSE

The aim of this case series was to describe five youths with psychiatric illnesses who underwent feeding tube placement as part of their treatment.

METHODS

The database of a Canadian academic tertiary care eating disorder program was used to identify patients with feeding tubes.

RESULTS

Five patients with feeding tubes were identified in the database of more than 600 patients. Of the five patients, two had anorexia nervosa and three suffered from food refusal as a result of a psychiatric illness unrelated to body image issues. For each patient, the tube was placed only after standard methods of treatment had failed, including repeated hospitalizations and in two cases, residential treatment. The primary goal of placing the tube was to allow for outpatient management of the patient. In all five cases, the healthy weight was restored, and four of the five patients experienced a significant improvement in independent eating behavior. Four of the five patients were found to have had their tube removed when this article was being written. None of the patients required further hospitalizations and no serious relapses were found to have occurred.

CONCLUSION

This case series demonstrates that gastrostomy tube feeding can be an effective intervention to allow patients with eating disorders to be treated as outpatients. The limitations of this study include the small study size, the retrospective nature of the study, and the short follow-up after tube removal. Further study is needed to evaluate the psychological effects of enterostomy feeds in patients and their families.

[Tube feeding at home in anorexia nervosa patients]

INTRODUCTION

In the aim to explore the efficacy of tube feeding (TF) in ambulatory anorexia nervosa (AN) patients, we prospectively treated 60 AN patients by tube feeding (TF) at home, using a nasogastric tube.

METHODS

Nutritional (clinical, biological) and psychological (Hamilton and Beck scores) markers were assessed before and after 2 months of NEAD.

RESULTS

While the patient's body weight was decreasing during the previous 2 months, it significantly increased (P<0.001) during the 2-month TF, both in the restrictive and the binge/purging form: +3,42 +/- 2,39 kg in the restrictive ones and +2,82 +/- 2,17 kg in the binge/purging ones. Patients were rapidly (48 h) and frequently abstinent from binge/purging during TF: 90% had no more binge/purging episodes (P<0.0001). TF did not worse the eating behavior, and did increase neither anxiety nor depressive levels (Hamilton and Beck scores). Biological nutritional markers were normal before TF and remained so (2nd month), except haptoglobin which was low before and reached normal range during TF (P<0,01).

CONCLUSION

Ambulatory TF seems to be useful in AN patients at home. This could permit to avoid hospitalization, but needs to be confirmed by a randomized trial.

Efficacy of inpatient treatment in severely malnourished anorexia nervosa patients

OBJECTIVE

Our aim is to present clinical results achieved with an intensive treatment programme for severe anorexia nervosa (AN) patients at risk of severe disability or death. Aims of the treatment are to remove life threatening conditions, physical and nutritional rehabilitation, and psychological and relational rehabilitation.

METHODS

We present an observational retrospective study of a cohort of 99 consecutive patients affected by severe AN [according to Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR)] and a body mass index (BMI) <or=13.5 kg/m2 treated by a multidisciplinary comprehensive medical, nutritional, psychological treatment. Intensive treatment (inpatient day and night and day hospital care) of variable length, with resort to enteral nutrition if needed, ends by achieving a BMI of at least 18 kg/m2. Outpatient care phase follows. Main goals were the recovery of BMI and the ability to maintain it.

RESULTS

Ninety-nine patients affected by severe Protein- Energy-Malnutritrion (PEM) due to AN were eligible in the study. Mean BMI was 12.5+/-0.9 kg/m2, mean age 21.9+/-8.6 yrs. Of 99 patients, 75 (75.5%) completed the planned treatment (completer subgroup). Eighteen patients prematurely interrupted their treatment before achieving complete weight restoration (dropout subgroup); on average they were older and ill for a longer time before admission. Six patients asked to be transferred to other eating disorder units closer to their towns. Seventy-five completer AN patients continued to undergo intensive inpatient treatment till the achievement of BMI 18.3+/-0.8 kg/m2 and then they have been in follow-up outpatient for a mean period of 17.4+/-1.6 months with an average extra increase of their BMI until to 19.1+/-1.6 kg/m2. In 32 patients with a more severe malnutrition we had to resort to nasogastric enteral feeding for 4.4+/-2.5 months, with a mean caloric supply of 1375+/-211 Kcal until the patients were no longer at life risk and they started to co-operate to treatment, increasing oral food amounts.

DISCUSSION

Our results seem to provide strong support for using a highly structured program for treating patients with severe AN, including inpatient care and multidisciplinary medical and psychological teams specialized in eating disorder treatment.

Quality of life and enteral nutrition

PURPOSE OF REVIEW

The quality of life is in essence, the patients' subjective view of their own health status and can add another dimension to the evaluation of a treatment as the enteral nutrition.The recent clinical investigations on this topic are critically summarized in this review.

RECENT FINDINGS

Three areas of potential impact of enteral nutrition on quality of life of patients have been identified: elderly and neurological patients, cancer patients and patients with anorexia nervosa.A major problem is the difficulty to define quality of life, due to the holistic and subjective nature of this dimension. Moreover, many patients require help to complete the forms of the questionnaire. Finally, many factors besides the enteral nutrition can affect the quality of life of these patients, namely the basic condition and the primary disease of the patients.

SUMMARY

Although the enteral nutrition often represents a life-saving procedure, this does not necessarily translate in an appreciation of a better quality of life by the patients.Additional factors as the gustatory deprivation and the loss of social contacts usually associated with eating and the frequent problems related to tube function and tube-feeding represent severe limitations to a good quality of life of these patients.

Clinical efficacy and safety of parenteral nutrition in adolescent girls with anorexia nervosa

PURPOSE

Anorexia nervosa (AN) is a common chronic disorder characterized by severe malnutrition and psychological disturbances. Parenteral nutrition (PN) is not usually used in nutritional rehabilitation of AN. The aim of our study was to retrospectively evaluate the indications, clinical efficacy, and safety of PN as assessed by short- and long-term outcomes in AN inpatient girls.

METHODS

During the last 10 years a total of 198 inpatients were included in our study: 104 (53%) received oral and parenteral refeeding (group A) and 94 (47%) oral refeeding alone (group B). For each nutritional treatment, clinical efficacy was evaluated by short- and long-term outcomes, and safety was assessed by complication rate.

RESULTS

Short-term outcome assessment indicated weekly weight gain and maximum caloric intake to be higher in PN-treated patients. Long-term outcome evaluation showed rehospitalization and recovery rate to be similar in the two groups, but failure of first nutritional rehabilitation requiring PN significantly greater in group B (17.5%) than in group A (3%) (p = .01). The number of complications was significantly higher in group A than in group B (p = .004), although all complications resolved.

CONCLUSION

Among all nutritional rehabilitation strategies, PN offers an alternative and safe way to successfully treat AN patients. Presence of clinical complications and reduced compliance with individual, group, and family therapy seem to be the main indications for PN, as it promptly improves nutritional status. At pediatric and adolescent ages, psychological disturbances can also contraindicate the use of enteral nutrition, and therefore represent an additional indication for PN.

A randomized trial on the efficacy of a 2-month tube feeding regimen in anorexia nervosa: A 1-year follow-up study

BACKGROUND & AIMS

Despite the high mortality rate in malnourished anorexia nervosa (AN) patients, very few trials have prospectively studied the efficacy of tube feeding.

METHODS

This open prospective study was conducted in malnourished AN patients, who were randomized in tube feeding (n=41) or control (n=40) groups during a 2-month period. Thereafter, body weight, body mass gain, energy intake, eating behavior and relapse rates were compared during a 1-year follow-up, using paired Student t-test and ANOVA.

RESULTS

At the end of the 2-months period, weight gain was 39% higher in the tube feeding group than in the control group (194+/-14 vs 126+/-19g/day; P<0.01). The fat-free mass gain was greater in the tube-feeding group: 109+/-14 vs 61+/-17g/day (P<0.01). Energy intake was higher in the tube feeding group than in the control group (P<0.05), as well as the decrease in bingeing episodes (P<0.01). Most patients thought that CEN improved their eating disorder. After discharge, the relapse-free period was longer in the CEN group than in the control one: 34.3+/-8.2 weeks vs 26.8+/-7.5 weeks (P<0.05).

CONCLUSION

CEN is helpful in malnourished AN patients for weight restoration, without hindrance on the eating behavior therapy nor inducing a more rapid relapse.