Stone street after extracorporeal shock wave lithotripsy: Changing trends upon changing lithotripsy indications

Amaç: Beden dışı sok dalgalarıyla (ESL) taş kırmanın ana komplikasyonlarından biri de taş yolu oluşumudur. Bu komplikasyon taş parçalarının spontan olarak idrarla atılmasıyla sonlanabileceği gibi iiriner sistemin parsiyel veya komplet obstrüksiyonuna yol açarak böbrek fonksiyonlarını etkileyebilir. Biz çalışmamızda, 1990-1998 ve 1998-2002 yıllan arasında taşyolu oluşumunu ve değişen eğilimlere bağlı olarak bu duruma klinik yaklaşımımızı değerlendirdik. Metod: Nisan 1990 ve Aralık 2002 yılları arasında:Siemens Plus Litotriptörle, 6300 hastaya ESL uygulanmıştır. Tedavi sırasında 360 (%5.7) hastada taş yolu oluşurken 50 (%13.8) hasta yetersiz takip nedeniyle çalışmaya alınmamıştır. Taş yolunun ortalama uzunluğu 2.95 (l-15.2) cm olarak ölçülmüştür. Bulgular: 1990- 1998 yılları arasında 256 (%6.1), 1998- 2002 yılları arasında 104 (%4.9) hastada tas yolu oluşmuştur. 133 (%43.1) hasta taşı spontan olarak düşürmüştür ve 149 (%48) hastaya ek ESL seansı gerekmiştir. ESL'nin başarısız olduğu 20 (%6.5) hastaya üreterorenoskopi ve 8 (%2.6) hastaya da üreterolitotomi uygulanmıştır. Proksimal üreterdeki taş yolunun spontan veya ESL ile temizlenme oranı sırasıyla %25 ve %63.7 olarak tespit edilirken bu oranlar ureter orta bölümünde %27.2 ve %59.2, distal ürelerde ise %51.4 ve %40.8 olarak belirlenmiştir. Yüzey alam 3 cm*'den küçük taşlarda invazif prosedür hastalann %4. î 'ine uygulanırken bu oran yüzey alam 3 cnf'den büyük taşlarda %20.4'e yükselmiştir. Aynca bu hasta grubunda 1990-1998 ve 1998-2000 yıllan arasında invazif girişim gereksinimi %20.8 den %14.3'e düşmüştür. Tartışma ve Sonuç: Taş yolu oluşan hastalar dikkatle takip edilmelidir. Taş yolu gelişen ve ESL'nin başarısız olduğu olgularda üreterorenoskopi tedavi metodudur ve açık cerrahi komplike vakalarda gerekli olabilir. Aynca taş yüzey alanı 3 cm2'den büyük olduğunda ESL'den başka tedavi yöntemleri de göz önüne alınmalıdır.

Beden dışı şok dalgalarıyla taş kırma sonrası taş yolu oluşumu: Değişen litotripsi endikasyonlarına bağlı olarak değişen eğilimler

Purpose: One of the main complications of extracorporeal shock wave lithotripsy (ESL) is the formation of stone streets. Although this complication may result in the spontaneous passage of stone fragments with urine, it may cause partial or full obstruction of the urinary system and affect renal functions. In this study, we evaluate the occurrence of stone streets and our clinical approach regarding the changing trends in both ESL and stone-street treatments in the 1990-1998 and 1998-2002 periods. Methods: Between April 1990 and December 2002, 6300 patients underwent ESL with a Siemens Lithostar Plus lithotriptor. Of these, 360 (5.7%) patients were found to have stone streets during their treatment; however, 50 (13.8%) patients were excluded from the study due to irregular follow-up. Mean length of the stone streets was 2.95 (1-15.2) cm. Results: Between 1990 and 1998, 256 (6.1%) patients had stone streets, whereas, between 1998 and 2002, 104 (4.9%) stone streets were observed. Of these patients, spontaneous relief was attained in 133 (43.1%) patients while additional ESL was necessary in 149 (48%) patients. Twenty (6.5%) and 8 (2.6%) patients in whom ESL was unsuccessful underwent ureterorenoscopy and ureterolithotomy, respectively. While the clearance rate of stone streets in the proximal ureter with spontaneous passage or ESL was 25% and 63.7%, these rates were 27.2% and 59.2% in the middle ureter and 51.4% and 40.8% in the distal ureter, respectively. Invasive procedures were performed in 4.1% of patients with a stone surface area less than 3 cnf; however, this rate increased to 20.4% in patients with a stone surface area larger than 3 cnf. Also in this subgroup of patients, the need for invasive measures decreased from 20.8% to 14.3% between the 1990-1998 and 1998-2002 periods. Conclusion: Patients with stone street formation should be observed carefully. Ureterorenoscopy in stone street patients is the method of choice if SSL remains unsuccessful, and open surgery may be necessary in rare complicated cases. Treatment modalities other than ESL should be considered, especially if the pre-ESL stone surface area is larger than 3 cnf.

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  • Yayın Aralığı: Yılda 4 Sayı
  • Yayıncı: Gazi Üniversitesi Tıp Fakültesi
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