Perioperative peripheral parenteral nutrition to support major gastrointestinal surgery: Expert opinion on treating the right patients at the right time.

Background & Aims: Patients undergoing major gastrointestinal surgery may be in particular need of nutritional therapy due to potential pre-existing disease-related malnutrition and the impact of surgical procedures. Peripheral parenteral nutrition (PPN), delivered via a peripheral catheter, is aligned with the Enhanced Recovery After Surgery (ERAS) concept of minimally invasive interventions where possible. However, uncertainties regarding perioperative PPN for patients undergoing major gastrointestinal surgery arise, in part, due to lack of clinical guidelines. This paper aims to provide practical guidance on perioperative PPN, within the framework of ERAS.

Methods: A panel of surgeons and nurses convened to identify knowledge gaps and share their best practice experience regarding PPN provision for patients undergoing major gastrointestinal surgery. Clinical needs were identified and addressed based on the panel's experience and a narrative review.

Results: Key topics addressed include how PPN can support ERAS nutritional recommendations, identifying gastrointestinal surgery patient subgroups who are likely to benefit from PPN, perioperative timepoints when PPN may be required, and optimizing the delivery of PPN. An algorithm to support the identification and management of patients' perioperative nutritional needs was developed.

Conclusions: This paper aims to assist healthcare providers by addressing best practice questions related to the use of PPN during the critical perioperative period within the ERAS concept. This may facilitate timely nutritional intervention to help improve postoperative clinical outcomes and quality of life for patients undergoing major gastrointestinal surgery.