The why and how of maintaining hydration during cancer therapy

Purpose of review To provide an overview of the role hydration plays in the oncology population while providing a synopsis of recent scientifically relevant published practice advancements. Recent findings Dehydration causes substantial symptom burden in cancer patients, secondary to both disease process and treatment complications. Maintaining fluid and electrolytes balance is the key to hydration therapy. When oral intake is diminished, artificial hydration can be delivered via enteral, intravenous and subcutaneous routes. Use of artificial hydration in end-of-life care for cancer patients remains a highly debated topic with unclear benefits and lack of established standards. A holistic approach is required in the decision-making process. Summary Maintaining adequate hydration is important in patients receiving cancer therapy. Challenges exist, secondary to limited clinical guidelines of hydration in patients with advanced cancer. Artificial hydration may be indicated for selected patients at the end of life if used on an individualized basis as medical treatment.