Turkiye Klinikleri Journal of Gastroenterohepatology

Karaciğer Sirozunda Hipoksemi
HYPOXEMIA IN LIVER CIRRHOSIS
DR. SABAHATTİN KAYMAKOĞLU*, DR. LEVENT TABAK**, DR. IŞIK ADALET***, PROF. DR. ATİLLA ÖKTEN*, DR. CEMİL TAŞÇIOĞLU****, DOÇ. DR. YILMAZ ÇAKALOĞLU*, DR. FATİH BEŞIŞIK*, DOÇ. DR. ZEKİ KILIŞARSLAN**, PROF. DR. SEMA CANTEZ***
İSTANBUL TIP FAKÜLTESİ,
*GASTROENTEROHEPATOLOJİ BİLİM DALI,
**GÖĞÜS HASTALIKLARI ABD,
***NÜKLEER TIP ABD,
****İÇ HASTALIKLARI ABD , İSTANBUL
Turkiye Klinikleri J Gastroenterohepatol. 1992;3(1):37-41
Article Language: TR
Full Text
ÖZET
Bu çalışma, karaciğer sirozunda hipoksemi sıklığını ve intrapulmoner santiarın etiyolojideki rolünü araştırmak amacı ile planlanmıştır. Çalışmaya, bilim dalımıza peşpeşe başvuran, laparoskopi veya karaciğer biopsisi ile tanısı kesinleştirildi 81 karaciğer sirozlu hasta (59 erkek, 22 kadın; yaş ort.: 45.2+ 13.6 yıl) katılmıştır. Vakaların (51 'i vira! I7'sikriptojenik, 13 'ü alkolik orijinli) 23 'ü Child A, 42 'si Child B ve 16'sı Child C evresinde idi. Bütün hastalarda akciğer grafısi, EKG, solunum fonksiyon testleri ve oturur durumda arter kan gazı analizleri yapıldı. Yirmiyedi vakada 3 mCİ Tc99m "macroaggregated"albumin intravenöz injeksiyonu ile akciğer perfüzyon sintigrafısi, bunlardan 11 'inde de 5 mCi Xel33 ile ventilasyon sintigrafısi çekildi. Akciğer perfiizyon sintigrafısi sırasında beyin ve böbrek bölgeleri de görüntülendi. Hastaların hiçbirinde hipoksemiye sebep olabilecek kardio-pulmoner bir patoloji yoktu. Dört (%4.9) vakada (üç Child C, bir Child B) Pa02, 70 mmHg 'nın altında bulundu (ort. pa02: 60.9± 5 mmHg). Kantitatif radyonüklid metodu ile hesaplanan sistemik şant orkanları ortalama olarak, hipoksemik hastalarda %I6± 8.4, normoksemiklerde ise %4.5± 2.4 idi. Hipoksemisi olanların tümünde arteriyel örümcek vardı. Hipoksemik vakalarda saptanan yüksek sistemik şant oranı, akciğerlerdeki dilate kapıilerler ve/veya arteriovenöz iştiraklerin varlığını göstermektedir. Sonuç olarak, karaciğer sirozunda hipokseminin sık rastlanan bir bulgu olmadığı, ileri evredeki hastalarda görülebildiği ve intrapulmoner santiarın hipokseminin meydana gelmesinde önemli bir rolü olduğu kanaatine varıldı.

Anahtar Kelimeler: Hipoksemi; Karaciğer sirozu; Kantitatif akciğer perfüzyon sintigrafisi
ABSTRACT
This study was planned to investigate the presence of intrapulmonary shunting and the frequency of hypoxemia in patients with liver cirrhosis. Eightyone consecutive patients (59 male, 22 female; mean age: 45.2± 13.6 years) with liver cirrhosis proven by liver biopsy or laparoscopy were enrolled to the study. Etiologies of these patients were viral in 51, cryptogenic in 17 and alcoholic in 13. Of them; 23, 42 and 16 had been classified as Child A, B,C respectively. In all patients chest roentgenogram, EKG, pulmonary function tests and arterial blood gases were examined. Lung perfusion sintigraphy with intravenous injection of 3 mCi Tc99m macroaggregated albumin were obtained in 27 patients. The kidney and brain regions were also visualized at the same time. Ventilation scintigraphy with 5 mCi Xel33 were performed in 11 of them. A cardiopulmonary pathology that results in hypoxemia could not be found in these studies but scintigraphy. In four patients (4.9%), Pa02 values were determined below 70 mmHg (mean Pa02: 60.9+ 5 mmHg). In pulmonary perfusion scintigraphy, mean systemic shunting rates calculated by quantitative radionuclide method were found 16+ 8.4% in hypoxemic patients and 4.5± 2.4% in those with normoxemia. All hypoxemic patients had spider angioma. High systemic shunting rates presented in hypoxemic patients indicate the presence of dilated pulmonary capillaries and/or arteriovenous communications. We concluded that hypoxemia is not a cornai on finding of liver cirrhosis and m ight be a featureof patients with advanced cirrhosis and intrapulmonary shunting has an important role in the pathogenesis of hypoxemia.

Keywords: Hypoxemia; Liver cirrhosis; Qnantitative lung perfusion scintigraphy

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30.03.2014

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