Renal vascular pattern and incidental renal pathological findings among patients undergoing abdominal computed tomography angiography at Benjamin Mkapa Hospital
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Date
2022
Authors
Journal Title
Journal ISSN
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Publisher
The University of Dodoma
Abstract
Introduction.
The Renal vascular variation and the incidental renal pathological findings are
known for causing surgical complications post renal surgeries and presenting a wide
range of variation in the different societies in the world as studied by previous
cadaveric or postmortem and imaging studies. However, the patterns and prevalence
of renal vascular variation and incidental renal pathological findings are not well
known in the Tanzanian population. Hence, this study is aimed to determine the
patterns and prevalence of renal vascular variation and incidental renal pathological
findings among the patients underwent Abdominal computed tomography
angiography at Benjamin Mkapa hospital; so to know local extend and to help safe
surgery.
Objectives
This study aimed to describe the types and prevalence of renal vascular variation and
incidental renal pathological findings on abdominal computed tomography
angiography at Benjamin Mkapa hospital.
Methodology
This was a hospital based cross-sectional study conducted through a retrospective
review of abdominal computed tomography angiography of the patients from August
2021 to June 2022. To evaluate for renal vascular variation such as Early branching,
Hilar accessory arteries, Polar arteries (superior and inferior), multiple renal arteries,
level of origin of renal artery, length of renal artery, multiple renal veins, retro aortic
renal vein, circumaortic renal vein, level of origin renal vein, length of renal vein and
incidental renal pathological findings such as renal malignant masses, benign renal
masses and non-masses renal findings. Two radiologists were reviewed the scans
conclusion was reached and no disagreement was happened. Descriptive statistical
analysis was done by using SPSS version 26.0 and presented by using tables.
Results
We studied 103 abdominal CTA of the patients (206 kidneys), 59 CTA (57.28%) for
males and 44 CTA (42.72%) for females. Age range is less than 100 years, mean
(44.72±20.86) .Renal vascular variation 25 CTAs (24.2%) where renal artery and
vein variations were 23 CTA (22.3%) and 2 CTA (1.9%) respectively. The early
branching was predominant 7.8%; hilar accessory artery (6.8%); superior polar artery
(4.8%) ; inferior polar artery(2.9); left side was predominant with 12.6%;double RAs
(9.8%); triple (2.9%);level of origin L2 (48.5%); retro aortic renal vein (1%);
circumaortic renal vein (1%) ; the longest lengths were 59mm and 39.7mm of left
renal vein and right renal artery respectively. Incidental renal pathologies was 50
CTA (48.7%); benign masses (18.4%); renal cyst type I 13.6%; non-masses (48.6%);
hydronephrosis 8.6% and malignant are rare 2.9% (biopsy confirmed).
Conclusion
Both renal vascular variation and incidental renal pathological findings are common
among our study population with the prevalence of 24.2% and 48.7% respectively.
Among above renal artery variation and renal cyst Bosniak type I is predominant
with prevalence of 22.3% and 13.6% respectively. Hence, detailed preoperative
evaluation provides a chance to choose the best surgical modality and to avoid intraand post-operative complications.
Description
Master Dissertation
Keywords
Renal vascular variation, Incidental renal pathological, Surgical complication, Post renal surgeries, Abdominal computed tomography
Citation
Haule, S. (2022). Renal vascular pattern and incidental renal pathological findings among patients undergoing abdominal computed tomography angiography at Benjamin Mkapa hospital (Master dissertation). The University of Dodoma, Dodoma.