Bhinder Khurram Khaliq, Kanwal Aroosa, Farooq Zenab, Wahla Madiha Saeed, Khan Khizer Ahmed
Radiology Department, Shifa International Hospital, Islamabad, Pakistan.
Niger Med J. 2025 Apr 3;66(1):313-318. doi: 10.71480/nmj.v66i1.721. eCollection 2025 Jan-Feb.
Our study aims to explore the association of duplex collecting systems with variable renal vasculature and renal calculi, given the paucity of published data on the subject.
Between 2020 and 2023, retrospective research on patients with a duplex collecting system detected by CT scans was conducted at the radiology department of Shifa International Hospital. We assessed any gender bias and ascertained the frequency of this unilateral or bilateral duplex system abnormality. Furthermore, in patients who had received post-contrast imaging, the prevalence of renal calculi and varied renal vasculature was evaluated. In individuals with a duplex collecting system, the correlation between renal stones and renal variant vasculature was computed. SPSS version 25 was used to conduct the chi-square test.
We retrospectively gathered data on patients with duplex collecting systems that showed only 65 patients. According to our research, bilateral participation is uncommon but the duplex collecting system is not side-specific. According to our statistics, this aberration has been more common in men as compared to women. Only 36 of the 65 patients in total had post-contrast imaging to check for variances in the vasculature. Of the 36 patients with renal vein variations, 11 had renal vein variations and 25 did not have any anatomical variations. Of the 25 individuals who did not have a renal vein variation, 19 did not have calculus, 2 had calculus involving the lower pole, and 4 had calculus involving the upper pole. 8 individuals with renal variations did not have renal calculus, 2 patients had lower pole calculus, and 1 patient had upper pole calculus. A negative uncertainty coefficient was seen between renal vein vasculature and calculus formation. 17 of the 36 patients had renal artery variations, whereas 19 patients had no anatomic variation of the renal artery. 12 of the 19 individuals without a renal artery variation had no calculus, 2 had calculus involving the lower pole, and 5 had calculus involving the upper pole. 2 individuals had calculus affecting the lower pole, 0 patients had calculus on the upper pole, and 15 patients with renal artery variations had no renal calculus. A positive uncertainty coefficient was seen between renal arterial vasculature and calculus formation.
Understanding renal vasculature patterns is vital for effective vascular interventions as well as kidney transplantations. Patients with a duplex collecting system are at increased risk of stasis, infections, and stone formation. For urologists and nephrologists, awareness of the association with variant renal vasculature is critical for managing complications related to this anomaly.
鉴于关于该主题的已发表数据匮乏，我们的研究旨在探讨重复集合系统与可变肾血管系统及肾结石之间的关联。
2020年至2023年期间，在希法国际医院放射科对通过CT扫描检测出重复集合系统的患者进行回顾性研究。我们评估了任何性别差异，并确定了这种单侧或双侧重复系统异常的频率。此外，在接受增强成像的患者中，评估了肾结石和不同肾血管系统的患病率。在患有重复集合系统的个体中，计算了肾结石与肾变异血管系统之间的相关性。使用SPSS 25版进行卡方检验。
我们回顾性收集了仅65例显示有重复集合系统患者的数据。根据我们的研究，双侧受累并不常见，但重复集合系统并非具有侧别特异性。根据我们的统计，与女性相比，这种异常在男性中更为常见。65例患者中仅有36例进行了增强成像以检查血管系统的差异。在36例有肾静脉变异的患者中，11例有肾静脉变异，25例没有任何解剖变异。在25例没有肾静脉变异的个体中，19例没有结石，2例有涉及下极的结石，4例有涉及上极的结石。8例有肾变异的个体没有肾结石，2例患者有下极结石，1例患者有上极结石。肾静脉血管系统与结石形成之间存在负不确定性系数。36例患者中有17例有肾动脉变异，而19例患者没有肾动脉的解剖变异。19例没有肾动脉变异的个体中有12例没有结石，2例有涉及下极的结石，5例有涉及上极的结石。2例个体有影响下极的结石，0例患者有上极结石，15例有肾动脉变异的患者没有肾结石。肾动脉血管系统与结石形成之间存在正不确定性系数。
了解肾血管系统模式对于有效的血管干预以及肾移植至关重要。患有重复集合系统的患者发生淤滞、感染和结石形成的风险增加。对于泌尿外科医生和肾内科医生而言，认识到与变异肾血管系统的关联对于处理与这种异常相关的并发症至关重要。
