Batı Nil Ateşi Hastasına Yoğun Bakımda Yaklaşım
Özet
Batı Nil virüsü enfeksiyonu, çoğu olguda asemptomatik veya hafif seyirli olmakla birlikte, özellikle ileri yaş ve komorbid hastalığı bulunan bireylerde ciddi nörolojik tutulum ve çoklu organ disfonksiyonu ile seyreden yaşamı tehdit edici klinik tablolara yol açabilmektedir. Nöroinvaziv Batı Nil enfeksiyonu; menenjit, ensefalit ve akut flask paralizi gibi tablolarla ortaya çıkabilir ve yoğun bakım gereksinimi ile ilişkilidir. Bu bölümde, ateş ve halsizlik yakınmaları ile başvuran, kısa sürede nörolojik bozulma gelişen ve beyin omurilik sıvısı incelemesi ile Batı Nil virüsü tanısı doğrulanan bir olgu üzerinden yoğun bakımda tanı, izlem ve tedavi yaklaşımları ele alınmaktadır. Olgu temelinde; ayırıcı tanı süreci, destekleyici tedavinin önemi, mekanik ventilasyon gereksinimi, hemodinamik izlem, sekonder komplikasyonların yönetimi ve immünmodülatör tedavi seçenekleri (özellikle plazmaferez uygulamaları) ayrıntılı olarak tartışılmaktadır. Ayrıca güncel literatür eşliğinde Batı Nil virüsünün patofizyolojisi, epidemiyolojisi ve prognozu gözden geçirilerek, yoğun bakım pratiğinde erken tanının ve multidisipliner yaklaşımın mortalite ve morbidite üzerindeki belirleyici rolü vurgulanmaktadır. Bu bölüm, klinisyenlere nöroinvaziv viral enfeksiyonlara yaklaşım konusunda pratik bir rehber sunmayı amaçlamaktadır.
Although West Nile virus infection is asymptomatic or mild in most cases, it may lead to life-threatening clinical conditions characterized by severe neurological involvement and multiorgan dysfunction, particularly in elderly patients and those with comorbidities. Neuroinvasive West Nile disease may present as meningitis, encephalitis, or acute flaccid paralysis and is frequently associated with the need for intensive care. In this chapter, diagnostic, monitoring, and therapeutic approaches in the intensive care unit are discussed based on a representative case of a patient who presented with fever and fatigue, rapidly developed neurological deterioration, and was subsequently diagnosed with West Nile virus infection through cerebrospinal fluid analysis. Key aspects such as the differential diagnosis, the role of supportive care, indications for mechanical ventilation, hemodynamic monitoring, management of secondary complications, and the use of immunomodulatory therapies—particularly plasmapheresis—are reviewed in detail. In addition, the pathophysiology, epidemiology, and prognosis of West Nile virus infection are summarized in light of current literature. Emphasis is placed on the critical importance of early recognition and a multidisciplinary approach in reducing morbidity and mortality in patients with neuroinvasive viral infections. This chapter aims to provide clinicians with a practical framework for the intensive care management of severe West Nile virus disease.
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