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Safety and efficacy of home parenteral nutrition for chronic intestinal failure: a 16-year experience at a single centre

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Abstract

Background. Comparisons between safety and efficacy of home parenteral nutrition and of intestinal transplantation for treatment of chronic intestinal failure derived from observational studies.

Aims. To present the 16-year experience of home parenteral nutrition by the Chronic Intestinal Failure Centre of Bologna University.

Patients. A total of 40 adult patients were enrolled between 1986 and 2001.

Methods. Safety indices: survival and cause of death, catheter-related bloodstream infection, deep vein thrombosis, liver disease. Efficacy indices: nutritional and rehabilitation status, quality of life (SF36 instrument), re-hospitalisation rate. Statistics: Kaplan–Maier analysis and Cox model for survival probability and risk factors; logistic regression for catheter-related bloodstream infection risk factors.

Results. Survival rates at 1, 3 and 5 years were 97, 82 and 67% respectively. Survival was higher in patients ≤40 years. One death was home parenteral nutrition-related. Incidence of catheter-related bloodstream infection: 0.30/year home parenteral nutrition, was lower in patients treated by a specialized nursing protocol. Incidence of deep vein thrombosis was 0.05/year home parenteral nutrition. Hepatosteatosis occurred in 55%. Body weight remained stable or increased in 80%. Rehabilitation was total or partial in 74%. Re-hospitalisation rate was 0.70/year home parenteral nutrition. Quality of life scored significantly lower than in healthy populations in six out of eight domains.

Conclusions. Home parenteral nutrition is a safe and efficacious therapy for chronic intestinal failure. Survival compares favourably with survival after intestinal transplantation.

Introduction

Intestinal failure has been defined as a reduction in the functioning gut mass below the minimum amount necessary for adequate digestion and absorption of nutrients [1]. This can be due to four major pathophysiological conditions: short bowel syndrome, motility disorders of the small bowel, intestinal fistulas and small bowel parenchymal disease [2]. Intestinal failure may be an acute or chronic condition and may be secondary to benign or malignant disease. Chronic intestinal failure (CIF) due to benign disease is a rare condition with an estimated incidence of two to three patients/106 inhabitants per year [3], [4].

Treatment of CIF may be either medical or surgical. Home parenteral nutrition (HPN) is the ‘artificial gut’ for the medical treatment of CIF, first utilized in 1968 [5]. Epidemiological data showed that about 20–50% of patients who started HPN had a reversible CIF and were able to stop treatment after 1–2 years [4], [6], [7]. Surgical treatment of irreversible CIF secondary to benign disease consists of non-transplant options aimed at increasing the absorptive capacity of a short bowel [8] or of intestinal transplantation (ITx). The first ITx in humans was performed in the early 1960s but difficulties, mainly related to rejection and intense immunosuppression, slowed its progression until recent years [9]. Expected survival after ITx still remains lower [10], [11], [12] than expected survival on HPN [4], [6], [13], [14], [15], making HPN the treatment of choice for irreversible CIF too. Current indications for ITx are divided into three categories: failure of HPN due to life-threatening HPN-related complications or lack of venous access, locally invasive tumours of the abdomen and intestinal failure with high risk of mortality [16], [17]. HPN dependency with none of the above problems per se is not an indication for ITx, but some patients may be interested in ITx as a result of their unwillingness to accept long-term HPN or on account of their extremely poor quality of life on HPN. Patients with CIF who are candidates for either HPN or ITx must be informed about the safety and efficacy of the treatments. This information is available from observational studies.

In this study, the safety and efficacy of HPN for CIF in patients treated at a single centre over 16 years are reported.

Section snippets

Patients

All patients with CIF but without AIDS or a malignant disease, who were enrolled in the HPN program of the Chronic Intestinal Failure Centre of the Department of Internal Medicine and Gastroenterology, University of Bologna, between October 1986 and May 2001, were evaluated. The Centre is an approved Regional Referral Centre for CIF, but also accepts patients from all over the country. The Centre assesses the degree of intestinal failure, prescribes medical treatment and is responsible for

Patient population

Between October 1986 and 31 May 2001, 40 adult patients were treated with 50 cycles of HPN (Table 1). A patient was considered to have undergone more than one cycle of HPN if: (a) treatment was stopped on account of a reversible CIF and resumed later on account of a relapse of the CIF (intermittent cycle); (b) type of management of the infusion line was changed (passing from HCD management to Service management or vice versa) without interrupting the HPN (continuous cycle). A total of 31

Discussion

Results show that HPN is a safe and good efficacious therapy for CIF in adults. Data obtained retrospectively and those collected prospectively were similar, and the overall results are in keeping with those reported by previous surveys.

Survival on HPN was 97% at 1 year, 83% at 3 years and 68% at 5 years. Prognosis was better in younger patients, while a non-significant statistical trend was observed towards a better prognosis in patients with Crohn’s disease compared with those with other

Conflict of interest statement

None declared.

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