Danuta Miklaszewska

Publications of Danuta Miklaszewska

• Analysis of the correlation between the ostium surface area and divergence angles of coronary arteries and type of coronary circulation, heart dimensions and sex.

  Authors: Danuta Miklaszewska, Aleksandra Gawlikowska-Sroka, Florian Czerwiński

  Annales Academiae Medicae Stetinensis. 01/2010; 56(2):6-11.

  The objective of this study was to analyse the correlation between the diameter and divergence angles of coronary arteries and type of coronary circulation, heart. The study was carried out on 102The objective of this study was to analyse the correlation between the diameter and divergence angles of coronary arteries and type of coronary circulation, heart. The study was carried out on 102 human hearts (59 male and 43 female). The coronary arteries and veins and the ascending aorta were filled with Polimal epoxide resin. Soft tissues were dissolved with hydrochloric acid after solidification of the resin. The specimens were measured for divergence angles of the coronary arteries. Correlations between vessel divergence angle, coronary circulation type, and heart size were analysed in the casts. Data analysis indicated a greater diameter of the left coronary artery in both sexes, and in the co-dominant and left-dominant coronary circulation type. No correlations between divergence angles of coronary vessels and gender or coronary circulation type were found.

• A morphometric study of prenatal development of the human larynx.

  Authors: Danuta Miklaszewska, Aleksandra Gawlikowska-Sroka, Florian Czerwiński, Edyta Dzieciołowska-Baran, Ewa Adamiec

  Annales Academiae Medicae Stetinensis. 01/2010; 56(3):103-6.

  Precise knowledge of the anatomy and development of the airways in the fetus is needed for advances in neonatal medicine. The aim of this study was to assess the morphometry of the larynx duringPrecise knowledge of the anatomy and development of the airways in the fetus is needed for advances in neonatal medicine. The aim of this study was to assess the morphometry of the larynx during fetal development. The study was performed on 47 human fetal larynges (27 male and 20 female) collected between the age of 13-27 weeks of intrauterine life according to Pineau and preserved in 10% buffered formalin. Five measurements of each larynx were performed: total height of the larynx, height of the anterior wall, height of the posterior wall of the larynx, sagittal diameter of the aperture of the larynx, and external sagittal diameter of the cricoid cartilage. Correlations between the results and crown-rump (C-R) length of human fetuses in relation to gender were analyzed. The percentage ratio of laryngeal length to C-R length in subsequent weeks of the fetal period and in relation to gender was determined. Dimensions of the larynx were found to correlate with crown-rump length. Mean lengths of the larynx were greater in male than in female fetuses at some stages of development. Ultrasound dimensions of the larynx are greater than dimensions found during postmortem examinations.

• [Morphometric study of the left coronary artery].

  Authors: Danuta Miklaszewska, Aleksandra Gawlikowska-Sroka, Florian Czerwiński

  Annales Academiae Medicae Stetinensis. 01/2010; 56(2):12-7.

  The majority of morphometric studies of the left coronary artery is based on one or a few dimensions. The present study was undertaken to measure the dimensions of the left coronary artery, as wellThe majority of morphometric studies of the left coronary artery is based on one or a few dimensions. The present study was undertaken to measure the dimensions of the left coronary artery, as well as to determine correlations of diameter, length, and divergence angles with heart size and gender. The study was carried out on 102 human hearts (59 male and 43 female). True casts of coronary vessels were obtained using epoxide resins. Specimens were measured for left coronary artery dimensions and heart dimensions. The left coronary artery always branched off the left sinus of aorta. It divided into three branches in 7% of cases. The length of the anterior descending branch depended on the volume index of the heart. Gender was without significant effect on the dimensions of the left coronary artery. Sexual dimorphism of the left coronary artery is weak and is not significant in most cases. The length of the anterior descending branch correlates with the volume index of the heart.

• Prenatal development of the human trachea.

  Authors: Ewa Adamiec, Edyta Dzieciołowska-Baran, Florian Czerwiński, Danuta Miklaszewska, Iwona Teul

  Folia morphologica. 02/2002; 61(2):123-5.

  The tracheas of 46 human foetuses were examined: 26 male, 20 female with C-R length of 99-255 mm. The analysis of the total length of the trachea was carried out and its transverse dimension wasThe tracheas of 46 human foetuses were examined: 26 male, 20 female with C-R length of 99-255 mm. The analysis of the total length of the trachea was carried out and its transverse dimension was presented on three levels: on the first tracheal cartilage, in the mid-length of the trachea, and at the bifurcation into the main bronchi; also the proportions between these dimensions and the C-R length were analysed. The length of the trachea was measured in a straight line--from the end of larynx to the bifurcation of the trachea. Comparing tracheas to a tunnel with two openings, it was observed that the transverse dimension, the "laryngeal", is greater than the "bronchial"--in the case of smaller foetuses by 2 mm, but in foetuses with C-R length of over 250 mm by 1 mm. Moreover, no significant differences between male and female sex were noticed. All the measurements were taken with the use of a slide caliper. The results should be useful in the detection of abnormalities in the structure of the trachea, in problems with respiratory physiology and in endotracheal intubation, endoscopy or tracheostomy.