scholarly journals VARIANTES ANATÓMICAS DE LA ARTERIA HEPÁTICA COMÚN

2020 ◽  
Vol 12 (3) ◽  
pp. 137-143
Author(s):  
José D. Fonseca Figueroa ◽  
Valeria L. Alvarado Rodríguez ◽  
Pedro Estrada McDermott ◽  
Verónica Morales Vindas ◽  
Kevin Leiva Gabriel ◽  
...  
Keyword(s):  
Hepatic Artery ◽  
Surgical Complication ◽  
Anatomic Variation ◽  
Local Population ◽  
Preoperative Imaging ◽  
Correct Identification ◽  
Anatomical Variants ◽  
Arteria Hepatica ◽  
Group I ◽  
Revisión Sistemática

Introducción: Las variantes de la arteria hepática común han sido estudiadas y descritas desde la antigüedad, con la subsecuente aparición de clasificaciones anatómicas para su correcta identificación. Se ha descrito que hasta un 40% de la población presentan dichas variantes. Metodología: Se realizó una revisión sistemática de la literatura utilizando los descriptores “arteria hepática”, “variación anatómica” y “anatomía” donde se obtuvo un registro de 22203 que habían sido reportados por diferentes investigadores anteriormente y se analizaron en conjunto. Resultados: La variantes anatómicas de la AHC fueron estudiadas y clasificadas por Michels, Lippert y Pabst, y Hiatt. Según la clasificación de Hiatt, 80,46% de los individuos se agrupan dentro del grupo I, 6,46% dentro del grupo II, 6,10% en el grupo III, 1,50% en el grupo IV, 1,32% en el grupo V y 0,02% en el grupo VI. El grupo X de Michels, no contemplado en la clasificación de Hiatt, representó el 0,04% de la muestra. Conclusiones: Se recomienda realizar estudios de imagen preoperatorios cuando se considere apropiado puesto que podría incidir en la disminución de complicaciones quirúrgicas y postquirúrgicas y se debería considerar realizar estudios descriptivos para determinar la incidencia de variantes anatómicas en la población local.   Introduction: Variants of the common hepatic artery have been studied and described since ancient times, with the subsequent appearance of anatomical classifications for their correct identification. It has been reported that up to 40% of the population present these variants. Methodology: A systematic review of the literature was carried out by using the key words “hepatic artery”, “anatomic variation” and “anatomy”, resulting in a registry of 2203 individuals previously reported by various researchers which was analyzed as a whole. Results: Anatomical variants were studied and described by Michels, Lippert & Pabst, and Hiatt. According to the Hiatt classification, 80,46% of individuals were sorted in group I, 6,46% in group II, 6,10% in group III, 1,50% in group IV, 1,32% in group V and 0,02% in group VI. Michels’ group X, not included in Hiatt’s classification, represented 0,04% of the sample. Conclusions: Preoperative imaging studies are recommended when appropriate since it could result in a decrease in surgical and post-surgical complication. Descriptive studies that determine the incidence of anatomical variants in the local population should be considered.

Assessment of the Radial Artery and Hand Circulation by Computed Tomography Angiography: A Pilot Study

2005 ◽  
Vol 8 (1) ◽  
pp. 28 ◽  
Author(s):  
Omer Faruk Dogan ◽  
Musturay Karcaaltincaba ◽  
Umit Duman ◽  
Deniz Akata ◽  
Aytekin Besim ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Coronary Artery ◽  
Coronary Artery Bypass ◽  
Radial Artery ◽  
Anatomic Variation ◽  
Artery Bypass ◽  
Bypass Graft ◽  
Preoperative Imaging ◽  
Median Artery ◽  
Test Result

Objectives: The radial artery (RA) is increasingly being used as a coronary bypass graft. Results of a previous study using Doppler ultrasound and histopathologic examinations indicated that the RA has a higher incidence of preexisting intimal hyperplasia, medial calcification, and atherosclerosis than the internal thoracic artery. The aims of this study were to evaluate the use of computed tomographic angiography (CTA) to display hand collateral circulation, to define the criteria for an abnormal CTA test result, and to demonstrate usefulness of CTA as an alternative to conventional angiography for evaluation of the radial artery. Materials and Methods: Sixteen patients scheduled for coronary artery bypass grafting entered this study. We performed 32 examinations of forearm and hand arterial anatomy in these patients. CTA was performed in patients with a normal Allen test result, except 1 patient who had a persistent median artery. Soft tissue density forehand roentgenography was performed in all patients before the CTA evaluation. There was no selection of patients in relation to patient characteristics. As a risk factor for radial artery calcification, 6 of the patients had diabetes mellitus, 6 had aortofemoral occlusive disease, and 4 had a history of smoking. Results: Bilateral forearm arteries were visualized in all patients. Severe RA calcification was found in 1 patient, and distal occlusion was found in another patient. Focal RA calcification was noted in 2 patients. In the remaining patients no radial artery calcification or occlusion was noted. Anatomic variation of the upper limb arteries was shown in 2 patients; these variations were persistent median artery with absence of the radial and ulnar arteries and high bifurcation of the radial artery from the brachial artery. Conclusion: CTA is useful and safe for detection of radial artery calcific disease and assessment of the forehand circulation and its anatomic variations. Preoperative imaging of the RA is a means to avoid unnecessary forearm exploration or inadvertent use of a diseased conduit in coronary artery bypass candidates with multiple risk factors such as diabetes mellitus.

scholarly journals Anatomic variants of pulmonary venous drainage and their relation to recurrences of atrial fibrillation after pulmonary vein isolation

2021 ◽  
Vol 27 (3) ◽  
pp. 55-68
Author(s):  
Svetla Dineva ◽  
Milko Stoyanov ◽  
Aneliya Partenova ◽  
Boyan Kunev ◽  
Victoria Stoyanova ◽  
...  
Keyword(s):  
Pulmonary Vein ◽  
Pulmonary Vein Isolation ◽  
Local Population ◽  
Venous Drainage ◽  
Anatomical Variant ◽  
Cox Regression Analysis ◽  
Anatomical Variants ◽  
The Impact ◽  
Variant Anatomy ◽  
Af Recurrence

Anatomical variants of pulmonary venous drainage in the left atrium are often found. Divergent results have been reported on the impact of variant anatomy on atrial fi brillation (AF) recurrence after catheter ablation. We aimed to study the frequency of different anatomical variants of pulmonary venous drainage and their relationship with documented recurrences of AF after ablation. Material and methods: A retrospective study of patients with AF in whom radiofrequency pulmonary vein isolation was done after previously performed cardiac contrast-enhanced multidetector computed tomography. Clinical and procedural characteristics, type and frequency of anatomical variants of the veno-atrial junction and their association with AF recurrences were studied. Results: One hundred seventy-seven patients (112 men, 63.3%) with AF were studied, of which 148 (83.6%) with paroxysmal AF. Variant anatomy was found in 91 patients (51.4%). In 20.9% there was a common left trunk, in 23.2% – more or less than two right-sided veins, and in 7.3% – variations for both right and left veins. No differences in clinical and procedural characteristics were found between the groups with normal and variant anatomy. Recurrences of AF and their association with pulmonary venous anatomy were studied in 104 patients with follow-up ≥ 3 months. No signifi cant relation was found between the presence of variant anatomy and AF recurrences within the blinding period after ablation, OR = 0.864, 95% CI = 0.397 – 1.88, p = 0.843, nor afterwards, OR = 1.12, 95% CI = 0.5 – 2.5, p = 0.839. Cox regression analysis showed no differences in AF recurrence-free survival regardless of the anatomical variant of pulmonary venous drainage, HR = 1.09, 95% CI = 0.58 – 2.05, p = 0.779. Conclusion: In this local population of patients with AF, the incidence of variant pulmonary venous drainage is just over 50%. No association was found between variant anatomy and the rate of AF recurrences after fi rst pulmonary vein isolation.

scholarly journals SELECTION EFFICIENCY OF INBRED CATTLE OF UKRAINIAN WHITEHEAD BREED

2020 ◽  
pp. 232-245
Author(s):  
Svitlana Voitenko ◽  
Olena Sydorenko
Keyword(s):  
Milk Yield ◽  
Local Population ◽  
Live Weight ◽  
Moderate Degree ◽  
Absolute Increase ◽  
Reproductive Ability ◽  
Group I ◽  
Significant Difference ◽  
Close Inbreeding ◽  
Selection Of

The stated results of using outbreeding and inbreeding in a selection of cattle of the Ukrainian Whitehead breed, which belongs to the local population and is preserved only in one breeding herd. It was revealed that animals obtained from related breeding are characterized by a sufficiently high level of productivity and normal reproductive qualities. Although outbred and inbred heifers in the process of growth from birth to 18 months of age differed somewhat from each other in live weight, the difference was not statistically significant. In different periods of growth, both outbred and inbred animals had an advantage, indicating the possibility of improving the trait by purebred breeding methods. The absolute increase in live weight of experimental heifers on rearing was: Group I – 295 kg, II – 289 kg, III – 298 kg, IV – 308 kg and V – 293 kg without a statistically significant difference between the groups, which made it possible to conclude that there was no inbred depression when breeding cattle of a given herd through a related selection of parental pairs. It is recognized that the selection of calves to increase their live weight at birth will not have a positive effect on the trait during the growth of animals, as evidenced by the correlation between them. As a result of the study of reproductive ability, the expediency of obtaining and using inbred cattle in a herd, which was inseminated almost a month earlier than outbred, was proved. Between outbred and inbred cows, a significant differentiation of milk yield for the first – third lactation was found, without a significant advantage of animals obtained by one or another method of purebred breeding. According to the first lactation, the highest milk yield was observed in cows of the close inbreeding group (group V) – 4501 kg, which exceeded the outbred ones by 150 kg and the lower inbred ones (groups II-IV) by 191 – 633 kg. Inbred cattle with distant, moderate and close degrees of inbreeding at the second lactation had from 4629 kg to 4719 kg of milk, with the highest rate in cows of a moderate degree of inbreeding, while outbred cows produced only 4582 kg. Cows of a moderate degree of inbreeding had the highest milk yield in the third lactation – 5204 kg and the lowest – 3897 kg of the group of a close degree of inbreeding. Outbred cows for this trait were superior only to individuals of the group of close inbreeding. The results of a comparative analysis of economically useful traits of outbred and inbred cows and heifers of the Ukrainian Whitehead breed indicate the possibility of using a related selection of parental pairs in a herd to increase the efficiency of interbreeding selection, replicate the hereditary traits of the ancestor and preserve the disappearing domestic breed of cattle.

scholarly journals Left Hepatic Artery Arising from the Superior Mesenteric Artery: A Case Study of a Rare Anatomic Variation

2010 ◽  
Vol 2 ◽  
pp. 76-78 ◽  
Author(s):  
Eleazar Chaib ◽  
Yngrid E.D.M de Souza ◽  
Marcelo Y Maruyama ◽  
Leonardo F.B Marinucci ◽  
Matheus R Aranha ◽  
...  
Keyword(s):  
Superior Mesenteric Artery ◽  
Hepatic Artery ◽  
Mesenteric Artery ◽  
Anatomic Variation ◽  
Left Hepatic Artery

ROLE OF DYNAMIC SMILE ON OVERALL FACIAL ESTHETICS : A VIDEOGRAPHIC EVALUATION

2021 ◽  
pp. 154-157
Author(s):  
Ashita Singh ◽  
Sudhir Kapoor ◽  
Raj Kumar Jaiswal ◽  
Jitendra Bhagchandani ◽  
Sonahita Agarwal ◽  
...  
Keyword(s):  
Local Population ◽  
Facial Features ◽  
Clinical Tool ◽  
Analog Scale ◽  
Facial Esthetics ◽  
Group I ◽  
Dynamic Form ◽  
Vas Scores ◽  
Full Face

Introduction: Various studies have been done to analyze the posed smile with full facial features. But very scanty literature is present which establish the importance of dynamic smile in overall facial esthetics. Therefore this study was designed to capture smile in both static and dynamic form using photographic and videographic methods respectively; and assess the role of dynamic smile on overall facial esthetics. Method: The study was carried out on 166 subjects from the local population. Both static and dynamic smile were recorded. Three static parameters that are non-smiling full face, smiling full face, smiling focus on nose and mouth and two dynamic parameters that smiling full face, smiling focus on nose and mouth. The screening was done by the panel of 5 judges comprising of an Orthodontist, a Dentist, a Photographer, a Beautician and a Layperson using visual analog scale. Result: Among Males (Group I), score was highest with respect to (Group ID) “Dynamic smiling focus full face” followed by (Group IB) “Static smiling focus on full face” then (Group IA) “Static non smiling focus on full face” then (Group IC) “Static smiling Focus on nose and chin” (Group IE) “Dynamic smiling focus on nose and chin” respectively. Mean VAS scores of all the 5 parameters among Females (Group II), highest Mean scores was found with respect to (Group IID) “Dynamic smiling focus full face” followed by (Group IIA) “Static non smiling focus on full face” then (Group IIB) “Static smiling focus on full” face then (Group IIE) “Dynamic focus on nose and chin”) and lastly (Group IIC) “Static smiling Focus on nose and chin”. Conclusion: Dynamic smile plays a very important role in overall facial esthetics thus can be used as an important clinical tool, as it allows not only to capture the best frame of smile for smile analysis

Pseudoaneurysma van de arteria hepatica sinistra bij een patiënt met chronische pancreatitis gecompliceerd met obstructieve icterus

2021 ◽  
Author(s):  
J. FRANCOIS ◽  
S. KNAPE ◽  
E. VALVEKENS ◽  
L. CROMPHOUT ◽  
O. LESCEU ◽  
...  
Keyword(s):  
Chronic Pancreatitis ◽  
Obstructive Jaundice ◽  
Hepatic Artery ◽  
Scientific Literature ◽  
Good Condition ◽  
Bile Leak ◽  
Rare Entity ◽  
Left Hepatic Artery ◽  
Arteria Hepatica ◽  
Giant Pseudoaneurysm

Pseudoaneurysm of the left hepatic artery in a patient with chronic pancreatitis complicated with obstructive jaundice. A pseudoaneurysm of the left hepatic artery that causes an obstructive jaundice is a rare entity that has only been described a few times in scientific literature. We describe the case of a patient with a giant pseudoaneurysm (10 cm diameter) caused by chronic pancreatitis, that compresses the choledochus duct. The diagnosis was made by CT scan (computed tomography). The treatment consisted of a ligation of the afferent and efferent artery and evacuation of the aneurysmatic mass. A persisting bile leak was caused by a haemobiliary fistula between the aneurysmatic sac and choledochus duct. Therefore, a hepaticojejunostomy was performed with a delay of 4 weeks. The patient recovered after a few weeks and left the hospital in a good condition.

scholarly journals Anatomic variation of the left hepatic artery

2015 ◽  
Vol 80 (3) ◽  
pp. 214-216
Author(s):  
J.I. Ortiz de Elguea-Lizárraga ◽  
Z.J. del Real-Romo ◽  
L. Paláu-Dávila ◽  
E. Flores-Villalba
Keyword(s):  
Hepatic Artery ◽  
Anatomic Variation ◽  
Left Hepatic Artery
Sign in / Sign up

Export Citation Format

Share Document