Journals / Bozok Tıp Dergisi / 2026 / Cilt: 16 Sayı: 3

EFFECTIVENESS OF BEDSİDE EMERGENCY ULTRASONOGRAPHY IN PATIENTS WITH RENAL COLIC PRESENTING TO THE EMERGENCY DEPARTMENT

Acil Servise Başvuran Renal Kolikli Hastalarda Yatakbaşı Acil Ultrasonografinin Etkinliği

Emre Gökçen(BOZOK UNIVERSITY, FACULTY OF MEDICINE, MEDICINE PR.)0000-0002-6018-6105
Mikail Kuşdoğan(BOZOK ÜNİVERSİTESİ, TIP FAKÜLTESİ, TIP PR.)0000-0003-4075-8601
Levent Albayrak(BOZOK ÜNİVERSİTESİ, TIP FAKÜLTESİ, TIP PR.)0000-0002-4288-8170
Hasan Burak Kaya(KASTAMONU ÜNİVERSİTESİ)0000-0001-8851-2614
Pages
581–590
Publication Date
2026-09-25
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

For any hydronephrosis, POCUS showed a sensitivity of 86.2%, specificity of 83.3%, and overall accuracy of 84.9% (κ=0.695; p<0.001).

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: This study aimed to evaluate the diagnostic performance of point-of-care ultrasound (POCUS) for detecting and grading hydronephrosis in patients presenting to the emergency department (ED) with suspected renal colic, using non-contrast computed tomography (CT) as the reference standard.
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Key Findings & Data:Material and Methods: This prospective observational diagnostic accuracy study included 106 adult patients who underwent both renal POCUS and non-contrast CT during the same ED visit.
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Conclusion & Impact:For any hydronephrosis, POCUS showed a sensitivity of 86.2%, specificity of 83.3%, and overall accuracy of 84.9% (κ=0.695; p<0.001).
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Renal Kolik · Hidronefroz · Yatak Başı Ultrasonografi

Abstract

Objective: This study aimed to evaluate the diagnostic performance of point-of-care ultrasound (POCUS) for detecting and grading hydronephrosis in patients presenting to the emergency department (ED) with suspected renal colic, using non-contrast computed tomography (CT) as the reference standard. Material and Methods: This prospective observational diagnostic accuracy study included 106 adult patients who underwent both renal POCUS and non-contrast CT during the same ED visit. Hydronephrosis was classified as none, mild, moderate, or severe. The diagnostic performance of POCUS was assessed for detecting any hydronephrosis (grade ≥2) and moderate-to-severe hydronephrosis (grade ≥3). Agreement between POCUS and CT grading was evaluated using kappa coefficients. Results: CT demonstrated hydronephrosis in 58 patients (54.7%). For any hydronephrosis, POCUS showed a sensitivity of 86.2%, specificity of 83.3%, and overall accuracy of 84.9% (κ=0.695; p<0.001). Exact agreement across the four grades was 62.3%, while within-one-grade agreement was 98.1%. Linear-weighted and quadratic-weighted κ values were 0.626 and 0.777, respectively. POCUS assigned a higher grade than CT in 30 cases and a lower grade in 10 cases (p=0.001). For moderate-to-severe hydronephrosis, sensitivity was 88.9%, specificity was 82.3%, and negative predictive value was 95.6%. Conclusion: POCUS provides good diagnostic performance for the rapid, radiation-free assessment of hydronephrosis in renal colic. However, because it tends to overestimate hydronephrosis severity compared with CT, high-grade POCUS findings should not be considered directly equivalent to the corresponding CT grade.

Özet

Amaç: Bu çalışmada, acil servise (AS) renal kolik şüphesiyle başvuran hastalarda yatak başı ultrasonografinin (POCUS) hidronefrozun saptanması ve derecelendirilmesindeki tanısal performansının, kontrastsız bilgisayarlı tomografi (BT) referans alınarak değerlendirilmesi amaçlandı. Gereç ve Yöntemler: Bu prospektif gözlemsel tanısal doğruluk çalışmasına, aynı AS başvurusu sırasında renal POCUS ve kontrastsız BT uygulanan 106 erişkin hasta dahil edildi. Hidronefroz yok, hafif, orta ve şiddetli olmak üzere dört düzeyde derecelendirildi. POCUS’un herhangi bir hidronefrozu (derece ≥2) ve orta-şiddetli hidronefrozu (derece ≥3) saptamadaki tanısal performansı değerlendirildi. POCUS ile BT arasındaki derecelendirme uyumu kappa katsayılarıyla analiz edildi. Bulgular: BT’de 58 hastada (%54,7) hidronefroz saptandı. POCUS’un herhangi bir hidronefroz için duyarlılığı %86,2, özgüllüğü %83,3 ve doğruluğu %84,9 idi (κ=0,695; p<0,001). Dört düzeyli derecelendirmede tam uyum %62,3, bir derece içinde uyum %98,1 bulundu. Lineer ve kuadratik ağırlıklı κ değerleri sırasıyla 0,626 ve 0,777 idi. POCUS, 30 olguda BT’den daha yüksek, 10 olguda daha düşük derece belirledi (p=0,001). Orta-şiddetli hidronefroz için duyarlılık %88,9, özgüllük %82,3 ve negatif prediktif değer %95,6 idi. Sonuç: POCUS, renal kolikte hidronefrozun hızlı ve radyasyonsuz değerlendirilmesinde iyi tanısal performans göstermektedir. Ancak hidronefroz derecesini BT’ye göre daha yüksek sınıflandırma eğiliminde olduğundan, yüksek dereceli POCUS bulguları BT ile doğrudan eşdeğer kabul edilmemelidir.

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Cite This Article

Gökçen, E., Kuşdoğan, M., Albayrak, L., Kaya, H. B. (2026). EFFECTIVENESS OF BEDSİDE EMERGENCY ULTRASONOGRAPHY IN PATIENTS WITH RENAL COLIC PRESENTING TO THE EMERGENCY DEPARTMENT. Bozok Tıp Dergisi, Cilt: 16 Sayı: 3, 581–590. https://doi.org/10.16919/bozoktip.2017747

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