Safrayolu Darlıklarında Tanı ve Tedavi Yontemleri
Özet
Safra kanalı darlıkları, iyi huylu (benign) ve kötü huylu (malign) nedenlere bağlı olarak gelişen, klinik olarak sarılık, sağ üst kadran ağrısı ve kolanjit gibi ciddi tablolarla seyreden patolojilerdir. Benign darlıkların yaklaşık %80'i kolesistektomi operasyonları sırasındaki iatrojenik yaralanmalardan kaynaklanırken, kronik pankreatit, primer sklerozan kolanjit (PSC), travma ve karaciğer nakli sonrası komplikasyonlar diğer önemli etiyolojik faktörleri oluşturur. Malign darlıklar ise sıklıkla pankreas kanseri, safra kesesi kanseri ve kolanjiokarsinom gibi agresif tümörlerin doğrudan invazyonu veya dıştan basısı sonucu meydana gelir. Tanı sürecinde laboratuvar bulgularının (ALP, GGT ve bilirubin yüksekliği) yanı sıra ultrasonografi, bilgisayarlı tomografi ve MRCP gibi non-invaziv görüntüleme yöntemleri ile ERCP, EUS ve PTC gibi invaziv prosedürler kombine edilerek darlığın seviyesi ve karakteri belirlenir. Tedavinin temel amacı biliyer dekompresyonun sağlanmasıdır. Akut kolanjit ataklarında ampirik antibiyotik ve destek tedavisi öncelik taşırken, kesin tedavide benign vakalar için endoskopik balon dilatasyonu ve plastik stentleme ilk seçenektir. Endoskopik girişimlerin başarısız olduğu benign darlıklarda Roux-en-Y hepatikojejunostomi gibi cerrahi rekonstrüksiyonlar uygulanırken, rezeke edilemeyen malign darlıklarda metalik stentlerle palyatif drenaj sağlanarak hastanın yaşam kalitesi artırılır.
Bile duct strictures are pathologies that develop due to benign or malignant causes and clinically present with severe conditions such as jaundice, right upper quadrant pain, and cholangitis. Approximately 80% of benign strictures result from iatrogenic injuries during cholecystectomy operations, while chronic pancreatitis, primary sclerosing cholangitis (PSC), trauma, and post-liver transplant complications constitute other significant etiological factors. Malignant strictures primarily occur as a result of direct invasion or extrinsic compression by aggressive tumors such as pancreatic cancer, gallbladder cancer, and cholangiocarcinoma. In the diagnostic process, along with laboratory findings (elevated ALP, GGT, and bilirubin), non-invasive imaging modalities like ultrasonography, computed tomography, and MRCP, as well as invasive procedures including ERCP, EUS, and PTC, are combined to determine the level and character of the stricture. The primary goal of treatment is to achieve biliary decompression. While empirical antibiotics and supportive care take priority in acute cholangitis attacks, endoscopic balloon dilation and plastic stenting are the first-line choices for definitive treatment of benign cases. Surgical reconstructions such as Roux-en-Y hepaticojejunostomy are performed in benign strictures where endoscopic interventions fail, whereas palliative drainage with metallic stents is provided in unresectable malignant strictures to improve the patient's quality of life.
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