Pulmonary to Systemic Flow Ratio in Precapillary Pulmonary Hypertension Without Left-to-Right Shunts: A Prognostic Implication of the Fick Method

ŞENTÜRK B., AKDENİZ B., YILMAZ M. B., ÖZPELİT E., SEZGİN D., Kahraman B., ...Daha Fazla

MEDICAL JOURNAL OF BAKIRKOY, cilt.17, sa.3, ss.227-232, 2021 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17 Sayı: 3
  • Basım Tarihi: 2021
  • Doi Numarası: 10.4274/bmj.galenos.2021.67044
  • Dergi Adı: MEDICAL JOURNAL OF BAKIRKOY
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, Academic Search Premier, CINAHL, EMBASE, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.227-232
  • Anahtar Kelimeler: Pulmonary hypertension, prognosis, fick method, oxygen, mortality, VENOUS OXYGEN-SATURATION, LONG-TERM SURVIVAL, ARTERIAL-HYPERTENSION, BLOOD
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Objective: We routinely calculate the pulmonary to systemic (Qp/Qs) ratio to avoid missing any left-to-right shunts in patients with precapillary pulmonary hypertension (PH). However, the pulmonary artery oxygen saturation (SpaO(2)) was lower than the mixed venous oxygen saturation (SmvO(2)) calculated using the formula; hence, the Qp/Qs ratio was calculated as less than "1" in some patients despite the absence of any detectable shunt. We hypothesized that this observation might have prognostic significance; however, to the best of our knowledge, it has not been investigated yet. Therefore, we aimed to examine the prognostic value of the Qp/Qs ratio in precapillary PH without left-to-right shunts.