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The nutritional support for patients in the intensive care unit is an integral component of intensive care. Patients of a neurological and neurosurgical profile who are in the intensive care unit are a special group of patients, whose treatment differs both in the used intensive therapy methods and nutritional support provision.&#x0D;Indirect calorimetry should be used to determine the energy requirements in neurosurgical and neurological patients. The use of calculation equations, such as the Harris-Benedict equation, is impossible due to its large discrepancy with indirect calorimetry data. The need for protein in patients of this category should be made at the rate of 1.22.0 g/kg of body weight per day. The urinary nitrogen loss data should not be used as a routine method for determining protein requirements in these patients. Insufficient energy and protein intake in neurosurgical and neurological patients can lead to increased infectious complications, mechanical ventilation duration, and length of intensive care unit stay, and rehabilitation potential deterioration. Excessive energy intake can lead to increased carbon dioxide production and intra-abdominal pressure, thereby increasing the intracranial pressure and aggravating secondary brain damage.&#x0D;The central nervous system damage leads to increased intestinal permeability, worsens motility, and even changes the microbiota, which requires constant monitoring of the gastrointestinal tract functions to provide adequate nutritional support in neurological and neurosurgical patients who are in the intensive care unit.&#x0D;In modern guidelines, both on intensive care and nutritional support, recommendations for its implementation in these patients are unclear.

Nutritional support for patients in the neurosurgical and neurological intensive care unit: are special guidelines necessary?