Biography:

One of their most recent publications is Morphometric study of the aortic and great pulmonary arterial pathways in human foetuses. Which was published in journal Annals of Anatomy - Anatomischer Anzeiger.

More information about Michał Szpinda research including statistics on their citations can be found on their Copernicus Academic profile page.

Michał Szpinda's Articles: (3)

Morphometric study of the aortic and great pulmonary arterial pathways in human foetuses

SummaryIn prenatal and pediatric cardiovascular surgery knowledge of luminal diameters of the aortic and great pulmonary pathways is essential. The internal diameters of the aortic and great pulmonary pathways in 131 human foetuses (65♂, 66♀) were studied by means of anatomical, digital and statistical methods. During foetal development the absolute diameters revealed a linear increase. Correlation coefficients between these diameters and foetal age were statistically significant (P⩽0.05) for each age group and reached following values: r1=0.70 for the aortic bulb, r2=0.79 for the ascending aorta, r3=0.77 for the aortic isthmus, r4=0.79 for the descending aorta, r5=0.63 for the pulmonary trunk, r6=0.36 for the arterial duct, r7=0.46 for the right pulmonary artery and r8=0.49 for the left one. Diameters of the aorta and the pulmonary trunk indicated the relative increase in the values. A different tendency was observed for the internal diameters of the arterial duct and both pulmonary arteries, which were relatively decreased with increased foetal age. The largest diameter was observed in the arterial duct, the intermediate – in the right pulmonary artery and the smallest – in the left pulmonary artery. The cross-sectional area of the descending aorta was equal to the sums of the sectional areas of the aortic isthmus and the arterial duct (r9=0.97). The cross-sectional area of the pulmonary trunk was equal to the sums of the sectional areas of the both pulmonary arteries and the arterial duct (r10=0.91).

Digital-image analysis of the angiographic patterns of the popliteal artery in patients with aorto-iliac occlusive disease (Leriche syndrome)

SummaryAngiographic patterns of the popliteal artery are of great clinical relevance in vascular surgery below the knee. Using radiological, digital and statistical methods the variants and luminal diameters of the popliteal artery branching in 46 men and 30 women with Lerich syndrome were studied. Statistical analysis did not reveal any gender or syntopic dimorphisms (P⩾0.05). In subtype IA (87.5%) the anterior tibial artery and the short type of posterior tibioperoneal trunk were found. In subtype IB (2.63%) an arterial trifurcation was observed. In subtype IC (1.97%) the posterior tibial artery and the short type of anterior tibioperoneal trunk were seen. In two subtypes: IIA-1 (1.32%) and IIA-2 (0.66%) the anterior tibial artery and the long type of posterior tibioperoneal trunk were found. In subtype II B (5.92%) the long type of anterior tibioperoneal trunk and the posterior tibial artery were observed. The symmetry of the left and right popliteal patterns was seen in two most frequent subtypes: I A (r1=0.80) and II B (r2=0.83). Either the anterior or posterior tibial artery had a smaller diameter than the coexisting tibioperoneal trunk (P<0.01). In a trifurcation the luminal diameters formed a decreasing sequence of the following arteries: anterior tibial, posterior tibial and peroneal. The angiometric analysis of luminal diameters showed the predominant vessel in each subtype: anterior tibioperoneal trunk (IC, IIB), posterior tibioperoneal trunk (IA, IIA-1, IIA-2) and anterior tibial artery (IB).

Morphometric study of the brachiobicarotid trunk in human fetuses

SummaryThe study was conducted to define a normal range for the length, external diameter and volume of the brachiobicarotid trunk during gestation. The material examined consisted of 128 human fetuses of both sexes (63 male, 65 female) aged from 15 to 34 weeks, from spontaneous abortions or stillbirths. The arterial bed was filled with white latex LBS 3060, specimens were fixed in a 10% formalin, and then branches of the aortic arch were dissected, recorded using a camera, and digitalized to JPEG images. Afterwards, the brachiobicarotid trunks underwent morphometric analysis with the digital image analysis system of Leica QWin Pro16. Regression analysis was used to investigate the growth of the brachiobicarotid trunk during gestation. The brachiobicarotid trunk was observed in 27 of the 128 fetuses studied (21.09%). The results showed the brachiobicarotid trunk length as a function of fetal age, which could be expressed by y=−1.250+0.1433x±0.7682, and the brachiobicarotid trunk diameter by y=−3.034+0.2845±0.4253. The volumetric growth of the brachiobicarotid trunk followed the quadratic function y=178.5−19.69x+0.545x2±20.112. The correlation coefficients between arterial length or external diameter and fetal age, and the coefficient of determination between arterial volume and fetal age were as follows: r=0.76 for length, r=0.97 for external diameter, and R2=0.84 for volume (P<0.001). The relative diameter of the brachiobicarotid trunk increased from 0.738±0.089 to 0.916±0.088 during the study period.

Advertisement
Join Copernicus Academic and get access to over 12 million papers authored by 7+ million academics.
Join for free!

Contact us