Disorders of Lymphatic Architecture and Flow in Critical Illness.

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To provide a narrative review of disordered lymphatic dynamics and its impact on critical care relevant condition management. Detailed search strategy using PubMed and Ovid Medline for English language articles (2013-2023) describing congenital or acquired lymphatic abnormalities including lymphatic duct absence, injury, leak, or obstruction and their associated clinical conditions that might be managed by a critical care medicine practitioner. Studies that specifically addressed abnormalities of lymphatic flow and their management were selected. The search strategy time frame was limited to the last 10 years to enhance relevance to current practice. Relevant descriptions or studies were reviewed, and abstracted data were parsed into structural or functional etiologies, congenital or acquired conditions, and their management within critical care spaces in an acute care facility. Abnormal lymph flow may be identified stemming from congenital lymphatic anomalies including lymphatic structure absence as well as acquired obstruction or increased flow from clinical entities or acute therapy. Macro- and microsurgical as well as interventional radiological techniques may address excess, inadequate, or obstructed lymph flow. Patients with deranged lymph flow often require critical care, and those who require critical care may concomitantly demonstrate deranged lymph flow that adversely impacts care. Critical care clinicians ideally demonstrate functional knowledge of conditions that are directly related to, or are accompanied by, deranged lymphatic dynamics to direct timely diagnostic and therapeutic interventions during a patient's ICU care episode.