Effect and correlation of patent vascular access flow on left ventricular hypertrophy in kidney transplant patients.

Background: Patency of vascular accesses (VA) is associated with left ventricular hypertrophy (LVH) in kidney transplant recipients (KTR). This level of VA flow (VAF) as related to LVH was assessed and an upward level of VA flow recommended for VA closure determined. This recommendation has not been previously reported. Methods: 123 KTR cohort patients were enrolled between August 2016 and December 2017 and their LVH and LV mass index (LVMI) by echocardiography and VAF by Doppler ultrasound were evaluated at baseline and for a 24-month follow-up period. Associations between VAF and LVH were adjusted for other factors. Results: Patients with patent VA (55.3%) had significantly greater LVH (47.1 vs. 29.1%, an adjusted odds ratio 2.44, p = 0.03) and LVMI (112.15 ± 34.4 vs. 97.55 ± 23.55 g/m2, p = 0.009) when compared with the non-VA group. A positive correlation between VAF rate and LVM was noted (r = 0.40, p < 0.001). Subgroup analysis revealed the VAF ≥ 900 ml/min had risks of LVH 3.61, and 2.86 times compared with the non-VA group and the VAF < 900 ml/min group. After a 24-month follow up, there was no significantly individual change in LVMI in patients with or without VA except 6 patients who lost their VA patency during follow-up time had a significant reduction of LVMI (120.17 ± 52.13 to 80.89 ± 22.72 g/m2, p = 0.046). Conclusions: Patency of VA in post-KT patients was associated with LVH. There was a significant reduction of LMVI after loss of VA patency. Patients with stable kidney graft function should be considered for VA closure especially if VAF is ≥ 900 ml/min.

Delayed Proximal Flow Diverting Stent Migration in a Ruptured Intracranial Aneurysm: A Case Report.

A flow diverter can be used to treat a ruptured aneurysm, especially during complicated cases for endovascular or open microsurgical procedures. However, some complications have been reported such as occlusion of side branches or perforating arteries, stent migration or improper stent position, re-rupture of the aneurysm, and in-stent thrombosis. A 38-year-old man diagnosed with a ruptured left supraclinoid aneurysm was treated with a Pipeline embolization device. Despite adequate stent coverage of the aneurysmal neck, delayed proximal migration was seen in follow-up imaging. To our knowledge, proximal migration of the stent mostly happens intraoperatively due to an undersized stent or excessive stretching. We report a case of delayed proximal flow diverter stent migration.

Difference in carotid intima-media thickness between pre and postmenopausal women.

OBJECTIVES: To examine whether carotid intima-media thickness (CIMT), the prevalence of increased CIMT, and the presence of carotid plaque differ according to menopausal status. METHODS: In this analytical cross-sectional study, we enrolled 61 premenopausal women and 61 postmenopausal women. We matched the two groups for age. Participants were classified as either premenopausal or postmenopausal according to menstrual history and follicular-stimulating hormone level. Two skilled radiologists measured CIMT and carotid plaque in all participants by using B-mode ultrasound. RESULTS: The mean age was 49.25 ±â€Š2.0 years. The mean number of years since menopause in the postmenopausal group was 1.9 ±â€Š0.92 years. After adjusted analysis, the mean CIMT of the common carotid artery of postmenopausal women was significantly higher than that of premenopausal women, with a mean difference of 0.068 mm (95% confidence interval 0.023, 0.113). There was no significant association between number of years since menopause and mean CIMT. Although the prevalence of increased CIMT and the presence of carotid plaque were significantly higher in the postmenopausal group than in the premenopausal group according to crude analysis, this difference was not statistically significant after adjusted analysis. Multiple linear regression analysis for assessing potential risk factors for the alteration of mean CIMT showed that only menopausal status and body mass index were independently associated factors. CONCLUSIONS: Our findings indicate that postmenopausal status is a significant factor of high mean CIMT. These findings add to the growing evidence showing that menopause transition is a critical period for subclinical atherosclerosis development.