Laparoskopik Primer Trokar Girişi
Özet
Laparoskopik cerrahi, ameliyat sonrası ağrıyı azaltması ve iyileşme süresini kısaltması gibi avantajlarıyla önemli bir dönüm noktasıdır ancak ilk trokar girişi körleme yapıldığı için büyük damar ve bağırsak yaralanması gibi ciddi riskler barındırır. Karın içi erişimde genellikle önemli damar ve sinir yapısı içermeyen orta hat tercih edilir ve güvenli ilk giriş için Lee-Huang, Palmer, Jain gibi alternatif noktalar kullanılır. Peritona erişimde Açık (Hasson) tekniği, Veress iğnesiyle kapalı teknik, direkt trokar ve görselleştirilmiş trokar giriş yöntemleri uygulanmaktadır. Hasson tekniği tüm katmanların görülerek geçilmesini sağlarken, Veress iğnesi yöntemi dokuların en ince olduğu göbek bölgesini kullanır ancak vasküler komplikasyon riski daha yüksektir. İnsüflasyon aşamasında genellikle karbondioksit gazı kullanılarak 12-15 mm Hg hedef basınçla pnömoperitoneum oluşturulur. Özel hasta gruplarından gebelerde ikinci trimesterde supraumbilikal giriş tercih edilirken, obez hastalarda daha uzun trokarlar ve dik giriş açıları gereklidir. Giriş esnasında komplikasyonlardan kaçınmak için basamakların atlanmaması, kontrollü güç kullanımı, hastanın ilk girişte Trendelenburg pozisyonunda olmaması ve kas gevşetici kontrolü gibi kurallara titizlikle uyulmalıdır.
Laparoscopic surgery represents a significant milestone due to its advantages such as reducing postoperative pain and shortening recovery time; however, since the initial trocar entry is performed blindly, it carries serious risks like major vascular and bowel injuries. The midline, which lacks important vascular and nerve structures, is generally preferred for abdominal access, and alternative entry sites like the Lee-Huang, Palmer, and Jain points are utilized for safe initial entry. For peritoneal access, methods including the open (Hasson) technique, closed technique with a Veress needle, direct trocar entry, and visualized optical trocar entry are applied. While the Hasson technique allows layer-by-layer visualization of the abdominal wall during entry, the Veress needle method utilizes the umbilicus where tissues are thinnest, though it carries a higher risk of vascular complications. During the insufflation phase, carbon dioxide gas is typically used to establish pneumoperitoneum with a target pressure of 12-15 mm Hg. Among special patient groups, a supraumbilical approach is preferred during the second trimester in pregnant patients, whereas obese patients require longer trocars and perpendicular entry angles. To avoid complications during entry, strict adherence to rules is essential, such as proceeding step-by-step without skipping phases, using controlled force, ensuring the patient is not in the Trendelenburg position during the initial entry, and verifying muscle relaxation.
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