Ventral Branches Of Abdominal Aorta Research Articles

Classification of the variant hepatic arterial pattern among patients in northern Nigeria (Case study of Hausa ethnic group of Kano State)

The coeliac trunk is a wide ventral branch of abdominal aorta measuring about 1.25 cm in length and arising just below the aortic hiatus opposite the lower border of T12. The study investigated the classification of the variant hepatic arterial pattern among patients in northern Nigeria with particular focus on Hausa ethnic group of Kano State. The primary objective of the study was to classify hepatic arterial among adults in Kano state, Nigeria, by using three-dimension multidetector computerized tomography. The data utilized were obtained from the record unit of Radiology Department, Aminu Kano Teaching Hospital and ninety–three patients were used for the hepatic arterial classification. The result showed that the Michel’s classification of type I known as Normal had the highest percentage of 58.1%, followed by the type II, 12.9% and the least was type VII with 2.2%. The Hiatt’s classification, in this study also showed that the type I had the highest percentage of 58.1%, follow by the type II, (24.7%) and the least was type VI with 2.2% respectively. The determination of anatomical variations of the hepatic arteries among Hausa ethnic group of Kano state are of utmost importance for various surgical and radiological procedures to prevent any complications especially in liver transplantation.

Variations in the Ventral Branches of Abdominal Aorta by Computed Tomography: A Cross-sectional Study

Introduction: Computed Tomography is an advanced imaging technique of radiography which gives good information regarding vascular anatomy. Abdominal aorta and its branches show variations in their origin. This study may facilitate the clinicians and surgeons for planning treatment and thus post-treatment complications may be reduced. Aim: To find out the variations in the origin of ventral branches of abdominal aorta in relation to vertebrae and diameters of these arteries at their level of origin. Materials and Methods: A descriptive cross-sectional study was done on Contrast Enhanced Computed Tomography scan films of abdomen of 300 patients. The duration of study was of two years from September 2020 to January 2022. To determine the level of origin of ventral branches of abdominal aorta, every branch was divided into four types (Type I to IV) depending on the level of origin in relation to intervertebral disc, upper 1/3rd, middle 1/3rd and lower 1/3rd of body of corresponding vertebra. Diameter of each branch was measured at its level of origin. Results: Statistical analysis of data had shown that the most common origin of Celiac Trunk (CT) was at the level of T12 vertebra (44.33%), for Superior Mesenteric Artery (SMA), the most common origin was at the level of L1 vertebra (64%) and for Inferior Mesenteric Artery (IMA), the most common origin was at the level of L3 vertebra (68.67%). Mean diameter of CT, SMA and IMA was 5.91±0.48 mm, 5.86±0.40 and 3.13±0.44 respectively. Variations in the level of origin have significant correlation to vertebra (Pearson correlation coefficient=0.01). Conclusion: The CT, SMA and IMA have shown variations in their level of origin and significant inter-correlation with each other in relation to corresponding vertebra. This knowledge can be helpful to the clinicians and surgeons while planning treatment of abdominal organs.

Morphometric Study of Ventral Branches of Abdominal Aorta

Morphometric Study of Ventral Branches of Abdominal Aorta

Variations in the branching pattern of the celiac trunk and its clinical significance.

Celiac trunk is the artery of foregut, arising from the abdominal aorta at the level of T12/L1 vertebral body. It extends approximately 1.5 to 2 cm horizontally forwards before dividing into three branches: left gastric, common hepatic, and splenic arteries. Out of the three ventral branches of abdominal aorta, celiac trunk is more prone to have variations. During routine dissection of abdomen for undergraduate students we found some rare variations in the branching pattern of the celiac trunk. Absence of celiac trunk with hepatomesenteric trunk, quadrifurcation with dorsal pancreatic artery arising from it, quadrifurcation with middle colic artery arising from it, left inferior phrenic artery arising from celiac trunk, highly tortuous splenic artery supplying distal 1/3rd of transverse colon and hepatosplenic trunk. Knowledge of such variations is essential for liver and pancreas transplantations, pancreaticoduodenectomy, radiological abdominal interventions, laproscopic surgeries, and in trauma of the abdomen.

Absence of middle colic artery from the superior mesenteric artery

The knowledge of branches of superior mesenteric artery important for Surgeon and radiologists who deals abdominal diseases. Superior mesenteric artery is second ventral branch of abdominal aorta which arises from 1 cm below coelic trunk, opposite L1 vertebrae and supplies lower portion of duodenum, whole jejunum, ileum caecum, appendix, ascending colon and major portion transverse colon. Actually it is the artery for derivates of midgut. [1] Superior mesenteric artery gives inferior pancreatic duodenal artery, middle colic artery, right colic artery and ileo colic artery from its right concave side some ileo-jejunal artery from convex left side. Usually middle colic artery arises from superior mesenteric artery at the lower border of pancreas and immediately enters the root of transverse mesocolon and divides into right and left branch. The right branch anastomose with ascending branch of right colic artery near right colic flexure and left anastomose with ascending branch of left colic. Here we present a case of absence of mid colic artery from superior mesenteric artery and right colic artery shows some extra branches from its proximal part which supplies transverse colon.

Variation in the branching pattern of celiac trunk: a case report

AbstractArterial supply for the derivatives of foregut in the abdomen is provided by the branches of the celiac trunk. Celiac trunk is the first ventral branch of abdominal aorta and usually branches into splenic, common hepatic and left gastric arteries. Variations in the branching pattern of celiac trunk are common but in most of the people, they remain asymptomatic and go unnoticed. A good knowledge of these anatomical variations is important for surgeons undertaking various surgeries in the abdominal region and will help to minimise the complications related to abdominal surgery. Clinicians and radiologists should also be aware of any variations in the vascular pattern of the celiac trunk before performing angiographic examinations. In the current case, the celiac trunk divided into two branches; left gastric artery and hepato-splenic trunk. The hepato-splenic trunk further divided into splenic and common hepatic arteries. The common hepatic artery trifitrcated into proper hepatic, gastroduodenal and accessory hepatic arteries. Hepatic artery proper divided into right and left hepatic arteries. The accessory hepatic artery was tortuous and was as large as the left hepatic artery. It gave origin to the right gastric artery and entered the liver through left end of porta hepatis.

Multiple bilateral variations in urogenital vasculature-A clinico-embryological perspective

AbstractPrecise knowledge of urogenital vascular anomalies has become extremely important in the past decade with increasing numbers of renal transplantations, minimally invasive vascular surgeries and numerous radiologic procedures. We report the presence of multiple variations in urogenital vasculature bilaterally in a 52 year old male Indian cadaver. Twin renal arteries were encountered bilaterally. Main renal artery was originating bilaterally at L1 vertebral level and accessory renal arteries were originating as ventral branches of abdominal aorta at L3 vertebral level and were travelling to the lower part of the respective kidneys. Twin renal veins were draining the right kidney independently whereas the left renal vein was bifurcating into two tributaries and draining separately into the inferior vena cava. Multiple testicular veins were found bilaterally. This report will prove to be helpful in various surgical and radiological interventions performed in the field of urology.

English

The Coeliac trunk and the Superior mesenteric artery are ventral branches of abdominal aorta. Sometimes these two arteries arise from the abdominal aorta in a common trunk. Many literatures are available explaining this type of variation. But this report describes not only the common coeliaco-mesenteric trunk but also a rare variation in their branching. Knowledge about the vascular variations is essential for the clinicians for therapeutic and diagnostic procedures of many abdominal diseases.

Variation in the branching pattern of coeliac trunk-Case report

The Coeliac trunk is the first Ventral branch of abdominal aorta arising at the level of twelfth thoracic (T12) vertebra. The hepatic, splenic and left gastric arteries are considered as main classic branches of Coeliactrunk. We report a case of variation in the branching pattern of Coeliac trunk wherein the left inferior phrenic artery was seen arising from left gastric artery and there were two accessory hepatic arteries, one of them arising from left gastric artery and another one arising from common hepatic artery distal to the origin of hepatic artery. Cystic artery was seen arising from accessory hepatic artery. The right gastric artery is arising from gastro-duodenal artery. The gallbladder was distended with multiple stones, the wall of the gallbladder was thickened and there were adhesions connecting the gallbladder to liver bed and portahepatis. Knowledge of these vascular anomalies is important in handling patients undergoing diagnostic angiography for gastrointestinal bleeding, Coeliac axis compression syndrome or prior to an operative procedure or transcatheter therapy. Key WordsAccessory hepatic arteries,Coeliac trunk, gallbladder,Left gastric artery, Right gastric artery.

A direct anastomosis between the stems of celiac trunk and left colic artery by an anomalous fourth celiac trunk branch: First cadaveric study

Coeliac trunk (CT) is a ventral branch of abdominal aorta (AA) supplying the foregut through its three main branches, left gastric (LGA), common hepatic (CHA) and splenic artery (Standring et al., 2009). Branching pattern of CT may vary from above mentioned classical three to four, five or six. Additional branches include inferior phrenic artery, dorsal pancreatic artery, middle colic or accessory middle colic artery (Hamilton and Mossman, 1972; Amonoo-Kuofi et al., 1995). Anastmosis between CT and Superior mesenteric artery (SMA) which supplies the midgut derivatives in the form of Bühler's arcade (1-2%) is present posterior to the body of pancreas (Douard et al., 2006; McNulty et al., 2001). Anastomoses between SMA and Inferior mesenteric artery (IMA) which supplies hindgut derivatives are also documented (Lange et al, 2007; Van Damme and Bonte, 1990). Until recently no communications between arteries of foregut and hindgut were reported (Manoharan et al., 2010; Patel et al., 2010; Stimec et al., 2011). We report the first cadaveric finding demonstrating a direct communication between the stems of CT and left colic artery (LCA) via a fourth anomalous CT branch in the absence of any co-existing stenosis or aneurysm in the main vessels.