Yoğun Bakım Ünitesinde Hiperglisemili Hastaya Yaklaşım/Yönetim
Özet
Yoğun bakım ünitelerinde hiperglisemi yönetimi, mortalite ve morbiditeyi doğrudan etkileyen kritik bir süreçtir. Yoğun bakıma yatan hastalarda, mevcut diyabetin yanı sıra stres faktörlerine bağlı olarak gelişen hiperglisemi sıklıkla görülür ve bu durum hücresel düzeyde mitokondriyal hasara ile inflamatuar reaksiyonlara yol açar. Tedavide temel amaç hipovolemi ve enfeksiyon gibi riskleri azaltırken hipoglisemiyi önlemektir. NICE-SUGAR gibi geniş kapsamlı çalışmaların ardından, uluslararası ve ulusal kılavuzlar genel olarak kan şekeri başlangıç sınırını 180 mg/dL, hedef aralığı ise 140-180 mg/dL olarak kabul etmiştir. Tedavide ani değişen ihtiyaçlara hızla yanıt verebilmesi nedeniyle sürekli intravenöz insülin infüzyonu en güvenilir yöntemdir; subkütan uygulamalardan şok ve hipotansiyon durumlarında kaçınılmalıdır. Özellikle enteral ve parenteral beslenme alan hastalarda glisemik değişkenliği azaltmak adına bazal insülin desteği ile 4-6 saatlik periyotlarla düzeltme dozları kombine edilmelidir.
Hyperglycemia management in intensive care units is a critical process directly impacting mortality and morbidity. In critically ill patients, hyperglycemia often arises from both pre-existing diabetes and stress-induced factors, leading to mitochondrial damage and inflammatory cascades at the cellular level. The primary objective of therapy is to achieve a stable glycemic balance and prevent hypoglycemia while mitigating risks like infections and hypovolemia. Following extensive clinical trials such as NICE-SUGAR, international and national guidelines have widely established an insulin initiation threshold of 180 mg/dL and a target glucose range of 140-180 mg/dL. Continuous intravenous insulin infusion represents the gold standard for treatment due to its capacity for rapid dose titration, whereas subcutaneous regimens should be avoided during shock or hypotension. Furthermore, for patients receiving total enteral or parenteral nutrition, combining basal insulin with correctional doses every 4 to 6 hours is strongly recommended to minimize glycemic variability.
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