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The cystic artery varies in origin, course and number and it is important to recognise it during operative procedure. Insufficient recognition of its anatomical variation may contribute to a dangerous situation, especially during laparoscopic cholecystectomy. To prevent iatrogenic injuries of the vessels and bile ducts, correct preparation with clear identification of the anatomic structures is essential. Special attention must be given to the course of the cystic artery through the hepato-billiary triangle (Calot`s triangle). The assumption of the present study was recognition of the vasculature of the gallbladder in human foetuses. The purpose of this investigation was to determine the origin of the cystic artery and its relation to Calot’s triangle. In this study the cystic artery was most often (97.06%) a single vessel and only in one case (2.94%) was it a double vessel. It arose most often (82.34%) from the right proper hepatic artery, rarely from its trunk (8.82%) or its left branch (5.88%) and most rarely (2.94%) from the gastroduodenal artery. In all but one case the cystic artery coursed within Calot’s triangle. Its exceptional course out of Calot’s triangle concerned a cystic artery originating from the gastroduodenal artery (2.94%). The cystic artery most frequently (67.66%) runs behind the common hepatic duct, rarely (29.40%) over the common hepatic duct and most rarely (2.94%) on the left side of the cystic duct. In the material examined the cystic artery was not observed running in front of the common hepatic duct. The short type of cystic artery trunk (52.93%) was observed more frequently than the long one (44.13%).
By means of anatomical and radiological methods and with help of the Computer Digital Image Analysis System the brachiocephalic trunk and the common carotid arteries in relation to the vertebral column were studied in 60 human fetuses. The vessels were found to be between the upper borders: of the third thoracic vertebra and the first cervical vertebra (Th3s-C1s). In the 6th month of the ontogenetic development the vessels descended by one vertebra and established their location in the next prenatal compartment (8-9) between the lower borders: of these same vertebra (Th 3i - C 1i ). We have counted the skeletopic age correlation coefficients of these vessels andfound the diminuation of their values. Sexual skeletopic dimorphisms have not been observed. These investigations have clinical implications.
There are 3 groups of perforating veins of the shin: the medial, the lateral and the internal sural perforating veins. Dysfunction of these veins is one of the main factors in venous hypertension. There is a lack of data in the literature concerning perforating veins of the shin in human foetuses. The aim of this study was identification of the perforating veins of the shin in human prenatal development. The material examined included 88 human lower limbs of foetuses (21 males and 23 females) aged from 16 to 38 weeks of intra-uterine life. The perforating veins were dissected under a steromicroscope. The number of perforating veins was analysed in relation to the sex of the foetus and the side of a body. In our study perforating veins of the shin did not show sexual or syntopic dimorphism. Between 2 and 6 Cockett’s perforating veins were constantly present. Of these veins 80% divided into ascending and descending branches. Fibular perforating veins were found more often (90.9%) than Boyd’s perforating veins (21.6%). Between 1 and 3 fibular perforating veins were observed but in 9% of cases they were entirely absent.
In prenatal and pediatric cardiovascular surgery knowledge of the various arrangements of the aortic arch and its branches as well as the normative data are essential. The variability and morphometric features of the brachiocephalic trunk in 131 human foetuses (65 male, 66 female) ranging from 15 to 34 weeks of gestation were studied by means of anatomical, digital and statistical methods. In all the foetuses examined the left aortic arches were found to have three different arrangements. In 74.05% of cases the usual pattern of the aortic arch with its three main branches were observed. A common origin of the brachiocephalic trunk and left common carotid artery occurred in 20.61% of individuals. In 5.34% of cases the left vertebral artery was an additional vessel and arose from the aortic arch between the left common carotid and subclavian arteries. No significant gender differences were found with respect to the brachiocephalic trunk (p ≥ 0.05). The developmental increase in length (r₁ = 0.78) and diameter (r₂ = 0.83) correlated with a linear function but the increase in volume in relation to age corresponded to a quadratic function (r₃ = 0.73). Our results show the largest increases in the brachiocephalic trunk according to the following parameters: the length — between the 4th and 5th, and 7th and 8th months, diameter — between the 8th and 9th months and volume — between the 4th and 5th, and 7th and 9th months of gestation (p £ 0.01). The present study constructs a normal range for the morphometric features of the foetal brachiocephalic trunk.
In the retroperitoneal space the gonadal veins form a collateral circulation that has a great clinical impact on sclerotherapy or surgical ligation of varicoceles. The aim of this study was to examine the communications of the gonadal veins (according to classification, frequency of appearance, gender and syntopic differences) in human foetuses of both sexes (71 males and 59 females) aged 4–6 months of intrauterine life. On the right side the most frequently were found the gonadal-periureteral anastomosis (23%) and the gonadal-perirenal anastomosis (22%). A gonadal-lumbar anastomosis on the right side appeared in 7% of cases. On the left side the most frequent (37%) was the gonadalperirenal anastomosis, more frequently occurring as an ovarian-perirenal anastomosis (48%) than as a testicular-perirenal anastomosis (29%). Gonadal-periureteral anastomoses were found in a quarter of cases. Gonadal-lumbar anastomoses were observed in 7% of individuals. On the left side the gonadal-mesenteric inferior anastomosis was specifically observed (21%) as an ovarian-mesenteric inferior anastomosis (24%) and a testicular-mesenteric inferior anastomosis (19%). The cross-communications between the right and left gonadal veins (7%) were more frequently as the bilateral testicular (9.7%) than as the bilateral ovarian one (3%). In female foetuses gonadal-perirenal anastomoses occurred with statistically greater frequency than gonadal-periureteral anastomoses (p ≤ 0.05). The frequency of cross-communications of the gonadal veins was three times greater in male foetuses (p ≤ 0.01). Statistical analysis revealed a significantly greater frequency of left-sided anastomoses: the gonadal-perirenal in both sexes (p ≤ 0.05), the gonadal-periureteral in males (P ≤ 0.05) and the gonadalmesenteric inferior in both sexes (p ≤ 0.01).
Knowledge of the course of the pancreaticoduodenal arteries is of great importance in pancreatic surgery. Lack of care in the preparation of these vessels may lead to ischaemia or necrosis of the duodenum, the first loop of the jejunum, the head of the pancreas and even the liver, bile ducts and transverse colon. In such events, the surgeon would need to diagnose the course of the vessels and their anastomoses intraoperatively. Anatomical dissection in this special area diminishes the risk of early complications in the form of bleeding and late complications in the form of narrowing of the anastomoses, fistulas, necrosis and intestinal ileus after surgical resection or drainage. The aim of the present study was to determine the variability of the pancreaticoduodenal arteries in human foetuses. The material examined consisted of 60 human foetuses of both sexes (33 male, 27 female) from spontaneous abortion or stillbirth and ranging in age from the 16th to 38th week of prenatal life. White latex solution to of volume between 15 ml and 30 ml was injected into the thoracic aorta. The results of this were that a typical pancreatic supply from the coeliac trunk and superior mesenteric artery was observed in all cases. The coeliac trunk, splenic artery and gastroduodenal artery also appeared invariably. However, variability was observed in further generations of branches. The gastroduodenal artery with its branches, the anterior and posterior pancreaticoduodenal arteries, was constantly present. Irrespective of the sex of the foetus, in 10% of cases a large vessel was observed which ran horizontally on the anterior surface of the pancreas from head to tail and which originated in the anterior superior pancreaticoduodenal artery. We termed this vessel the “anterior pancreatic artery”. In all cases there were anterior and posterior pancreaticoduodenal arcades, but in two cases (3.3%) a double anterior pancreaticoduodenal arcade was observed.
With the use of conventional anatomical dissection, radiography, digital and statistical analysis, morphometry and skeletopy of the pancreas was carried out in 60 human foetuses of both sexes (28 female, 32 male) between the 17th and 40th week of intrauterine life. The material was fixed in a 10% formalin solution. The age of the foetuses was determined by crown-rump (CR) lenght measurement on the basis of the Iffy et al. tables. Photographic documentation was made and then digitally processed in the Computer Image Digital Analysis System. The following parameters were taken into account: the length and width of 3 parts of the pancreas, namely the head, corpus and tail. Additionally, radiograms were made to obtain a projection of the gland on the vertebral column. Development of the pancreas was correlated with the age of the foetuses calculated on the basis of crown-rump (CR) lenght measurements. The correlation coefficient with CR was 0.998 for the pancreas length, 0.709 for the width of the head, 0.703 for the width of the corpus and 0.712 for the width of tail. Gender dimorphism was not found (p > 0.05) with regard to the morphometry of the pancreas. In the material under examination the pancreas did not change its position in relation to the vertebral column. The head projected on the vertebral column in the range Th₁₂–L₂ (most frequently L₁–L₂), the corpus on Th₁₂–L₂ and the tail on Th₁₁.
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