A Multicentre Study of Abdominal Aorta Diameters in a Turkish Population

Abstract

The aim of this study was to determine the normal values for aortic diameters and the prevalence of aortic dilatation in a mixed Turkish population. Between March 1998 and May 2000, patients who were undergoing abdominal ultrasonography examination for pathologies not involving the aorta, in three different cities, were enrolled into the study prospectively. The anterior posterior aortic diameters were measured at the subdiaphragmatic and aortic bifurcation levels using ultrasonography. A total of 596 patients were included (302 females, 294 males). The mean age was 48 +/- 16 years (range, 6-88 years). The mean aortic diameter in the whole group was 19.0 +/- 3.9 mm (10-45 mm) at the subdiaphragmatic level and 15.7 +/- 3.6 mm (9-65 mm) at the aortic bifurcation level. The mean subdiaphragmatic aortic diameter was 18 +/- 3 mm in females and 19 +/- 4 mm in males. The mean aortic diameters at the bifurcation level was 15 +/- 3 mm in females and 16 +/- 4 mm in males. An aortic bifurcation diameter > 30 mm was encountered in 0.67% of the population. This ratio increased to 1.8% in patients over 55 years of age, regardless of sex. A subdiaphragmatic aorta diameter above 30 mm was observed in 1.2% of the population. In patients over the age of 55 years, this ratio increased to 2.7% (3.6% in males and 1.9% in females). In this national study, the subdiaphragmatic aortic diameters were similar to mean values reported in the world literature. The mean aortic bifurcation diameters were generally lower when compared with the literature, which may be due to difficulties in standardization of the measurements. Aneurysmal dilatation rates in this study also conform to those reported in studies conducted in other countries. Considering the significant number of patients with aneurysmal dilatation of the aorta in the elderly population, we believe it would be prudent to evaluate the aorta in all patients undergoing abdominal ultrasonographic examination.

Reference Diameters of the Abdominal Aorta and Iliac Arteries in the Korean Population

“…In a similar study on an American population by Ouriel, et al,5 the diameter was 23 mm in males and 19 mm in females. In another study, Sariosmanoglu, et al4 reported that the mean aortic diameters were 16 mm in males and 15 mm in females in a Turkish population. Differences in the infrarenal aortic diameter are due to different methods of measurement and different levels where the aorta was measured.…”

“…The infrarenal aortic diameter was measured at 17.5 mm for people in their 50s, 18.1 mm for people in their 60s, and 19.4 mm for people in their 70s. In another study, aortic diameter showed significant correlation with age 4. Länne, et al15 investigated the changes in the diameter of the distal abdominal aorta in 76 healthy Caucasian males aged 5 to 71 years old by means of an ultrasound phase-locked echo-tracking system.…”

“…With this standard definition, it is important to know the normal diameter of abdominal aorta so that clinicians will be able to determine when an aorta becomes aneurysmal. The mean diameters at the level of the infrarenal aorta were 16 to 23 mm in males and 15 to 19 mm in females 4-6. However, a practical working definition of an AAA is a transverse diameter of 3 cm or greater based on average values for normal individuals 7…”

The Prevalence and Antibiotic Susceptibility Pattern ofSalmonella typhiamong Patients Attending a Military Hospital in Minna, Nigeria

“…The emergence of antimicrobial resistance, especially the multidrug resistance to ampicillin, chloramphenicol, and cotrimoxazole, has further complicated the treatment and management of enteric fever [6]. The resistance to well-known and trusted antimicrobial agents is widely recognized as one of the greatest challenges that physicians face in the management of adult and pediatric infections [7]. …”

Comparative Characteristics of the Morphometric Parameters of the Abdominal Aorta and its Unpaired Branches in Men with Different Body Types

“…Часть работ посвящена изучению особенностей анатомии указанного сосудистого бассейна у лиц различных национальностей [9,13,14].…”