Introduction: Men and women differ in diameters and MBFVs in VAs.
Aim: to compare morphology and hemodynamics of VAs between sexes.
Patients and methods: We examined 155 subjects using a linear 7.5 MHz probe (Aloka Prosound SSD-5500). Measurements were obtained at the V2 segment of VAs. Criteria: VA diameter of 2-4mm, systolic MBFVs of 0.35-0.70m/s, normal resistance pattern. Investigated parameters: diameters of VAs, MBFVs in VAs, sum of VA diameters, sum of MBFVs in VAs, diameter of the narrower and wider VA, and age.
Results: 68 men and 87 women; 88 with a dominant left VA (56% of men and 58% of woman), 11 (7%) showed no dominance. Group differences: men had both VAs wider, and a larger diameter of the “wider” VA. There were no differences in MBFVs between men and women.
Conclusion: Left VA is dominant in both sexes. There was no difference in MBFVs among sexes. Men have a wider VA than women.Uvod: Muškarci i žene se razlikuju u promjerima i srednjim brzinama strujanja krvi (SBSK) u vertebralnim arterijama (VA).
Cilj: usporediti morfologiju i hemodinamiku VA među spolovima.
Ispitanici i metode: Pregledali smo 155 osoba upotrebom linearne sonde 7,5 mHz
(Aloka Prosound SSD-5500). Mjerenja su vršena u V2 segmentu VA. Kriteriji: VA dijametar 2-4mm, sistoličke SBSK 0,35-0,70m/s, normalan otpor. Mjereni parametri: promjeri VA, SBSK u VA, ukupni promjeri VA, ukupne SBSK u VAs, promjeri “uže” i šire VA, i dob.
Rezultati: 68 muškaraca i 87 žena; 88 dominantnih lijevih VA (56% muškaraca i 58% žena), 11 (7%) bez dominacije. Razlike među grupama: muškarci imaju šire obje VA i promjer “šire” VA. Nije bilo razlika u sbsk među spolovima.
Zaključak: Lijeva VA je dominantna u oba spola, nema razlika u SBSK među spolovima. Muškarci imaju šire VA od žena
