{"title":"Scaling Laws for Vascular Buckling, Axial and Circumferential: Applications to Pulse Wave Velocity","authors":"P. Greene","doi":"10.4172/2329-6925.1000322","DOIUrl":"https://doi.org/10.4172/2329-6925.1000322","url":null,"abstract":"Background: Scaling laws for cylindrical column buckling are reviewed, applicable to the cardio-vascular system arteries or veins of various thicknesses to diameter ratios. \u0000Methods: Critical buckling load scales as (hr/L^2) for axial loads, (h/r)^3 for compressive circumferential loads, and ( h/r)^0.5 for pulse wave velocity. \u0000Results: Arteries and veins are most susceptible to buckling failure in collapsible tube mode when circumferential hoop stress exceeds external pressure. \u0000Conclusions: Applications include alternating positive (+) and negative (-) wall stresses to investigate the onset of plastic yielding, fatigue, creep, and pulse wave velocity, all relevant to aneurisms, venous thrombosis, hypertension, and arterial sclerosis.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"14 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2017-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90682867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Backhaus, L. Kremmler, L. Kirzinger, C. Wendl, F. Schlachetzki
{"title":"Neurovascular Compression Syndrome after Coiling Intracranial Aneurysm","authors":"R. Backhaus, L. Kremmler, L. Kirzinger, C. Wendl, F. Schlachetzki","doi":"10.4172/2329-6925.1000319","DOIUrl":"https://doi.org/10.4172/2329-6925.1000319","url":null,"abstract":"Objectives: Endovascular treatment of intracranial aneurysms using detachable coils is an established method by interventional radiologists. Next to prevention of subarachnoidal hemorrhage, prospective and retrospective studies have shown relief of symptoms caused by the mass effect of the aneurysm following this treatment. \u0000Patients and methods: We present cases of endovascular treated intracranial aneurysms in patients developing focal neurological symptoms due to a local perianeurysmal inflammation. Furthermore, we review the literature to increase awareness of this complication, its pathophysiology and therapeutic options. \u0000Results: Only rare cases of local perianeurysmal inflammation have been reported in literature. Clinical symptoms are heterogenous, up to focal seizures or symptoms of acute hydrozephalus. Pathophysiological, thrombembolism, local inflammatory and mass are possible aetiological factors. However, overall long-term prognosis is good. \u0000Conclusion: Neurovascular compression syndrome after intracraniel aneurysm coiling is a rare and possibly delayed complication. With regard to various causes, diagnostic and therapeutic options should be considered.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"59 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2017-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74645404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Endovascular Aneurysm Repair (EVAR) of an Infra-Renal Abdominal Aortic Aneurysm (AAA) in a Young Patient with Systemic Lupus Erythematosus (SLE)","authors":"N. Ng, C. T. Tec","doi":"10.4172/2329-6925.1000320","DOIUrl":"https://doi.org/10.4172/2329-6925.1000320","url":null,"abstract":"Aortic aneurysms are a rare cardiovascular complication of Systemic Lupus Erythromatosus (SLE) and the true incidence is unknown. This case report shares our experience with a 40 year old lady suffering from SLE whose Abdominal Aortic Aneurysm (AAA) was treated successfully with endovascular aneurysm repair (EVAR). To the author’s knowledge, the use of EVAR for AAA in SLE patients has not been reported in available literature. The pathogenesis and differences in aneurysmal disease in patients with SLE is also discussed.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"11 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2017-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88212054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Study of Correlation between Diurnal Blood Pressure with Nocturnal Oxygen Desaturation and Nitrite Production in Subjects with Obstructive Sleep Apnea (OSA)","authors":"H. Tran-Van, Anh Vo-Thi-Kim, S. Duong-Quy","doi":"10.4172/2329-6925.1000317","DOIUrl":"https://doi.org/10.4172/2329-6925.1000317","url":null,"abstract":"Background: Endothelial dysfunction is often present in subjects with obstructive sleep apnea (OSA) on walking up. Although the intermittent hypoxia has been suggested as a main cause of endothelial dysfunction in these subjects, the precise mechanism of this event is still unclear. The aim of this study was to demonstrate the correlation between the level of hypoxia during sleep with arterial blood pressure and plasma concentration of nitrite. Methods: Non-smoker subjects were included in a cross-sectional study. They underwent systolic and diastolic blood pressure (SBP and DBP) measured at bed before sleep and on walking up, overnight polysomnography (PSG), and measurement of nitrite in plasma from peripheral blood at walking up. Results: Sixty-five subjects with mean age of 58 ± 12 years were included in this study. The male-female ratio was 0.9 and BMI was 23.3 ± 3.4 kg/m2. The mean of systolic BP and diastolic BP post-PSG of subjects with SpO2<93% was significantly higher than subjects with SpO2 ≥ 93% (P<0.05 and P<0.01; respectively). The mean SpO2 and nadir SpO2 of subjects with SpO2<93% were significantly lower than subjects with SpO2 ≥ 93% (90 ± 4% vs. 94 ± 2% and 73 ± 9% vs. 88 ± 8%; P<0.05 and P<0.01; respectively). The level of apnea-hypopnea index in subjects with SpO2<93% was significantly higher than that in subjects with SpO2 ≥ 93% (P<0.01). The concentration of NO2- in peripheral blood of subjects with SpO2<93% was significantly lower than that in subjects with SpO2 ≥ 93% (P<0.01). There were the significant correlations between nadir SpO2 and NO2- with SBP and DBP on walking up. Conclusion: Endothelial dysfunction is a crucial event in subjects with OSA, especially for whom with obstructive sleep apnea. This event might be linked to the diurnal increase of peripheral blood pressure. The concentration of NO2- in plasma measuring on walking up might be a relevant marker of endothelial dysfunction during sleep.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"20 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81684835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Some Risk Factors for Hypertension of Khmer People Aged From 25 to 64 Years in Tra Vinh Province, Viet Nam","authors":"Tap Nguyen-Van, B. Nguyen-Thanh, Huong Tran Van","doi":"10.4172/2329-6925.1000318","DOIUrl":"https://doi.org/10.4172/2329-6925.1000318","url":null,"abstract":"A cross-sectional study was conducted on 1,200 Khmer people aged 25-64 years living in Tra Vinh province to propotion of hypertension some related factors. 30 communes (clusters) were selected by probability proportional to size (PPS) method, evaluating their risk factors of coronary artery disease (CAD) in the next 10 years using Framingham scale in face-to-face interviews. Results showed that propotion of hypertension was 33.5%, inside, having 37.3% people don’t know that they are getting hypertension disease. About some risk factors: 83.6% of participants had diet with less fat, 26.2% had adequate fruit and vegetable consumption, 10.6% had less-salt diet, 85.2% were non-alcohol abuse, 62.5% were non-smokers and 79.3% had moderate physical activity. About coronary artery disease: 79.7% of respondents have low risk, 16.3% with moderate risk and 4.0% with high risk of CAD in the next 10 years according to Framingham scale. The risk increases proportionally to the age and higher among men than women.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"86 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81177190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Ponzo, G. Orabona, G. Iaconetta, F. Astarita, G. Leone, R. Cuocolo, L. Ugga, F. Briganti, L. Califano
{"title":"Multidisciplinary Approach in the Management of Head and Neck Vascular Malformations","authors":"L. Ponzo, G. Orabona, G. Iaconetta, F. Astarita, G. Leone, R. Cuocolo, L. Ugga, F. Briganti, L. Califano","doi":"10.4172/2329-6925.1000316","DOIUrl":"https://doi.org/10.4172/2329-6925.1000316","url":null,"abstract":"Purpose: Arteriovenous malformations (AVM) of the head and neck are rare anomalies, but often present with significant haemorrhage or cosmetic defects. The purpose of this study is to determine the effectiveness of embolization of each type of vascular malformation. Methods: A retrospective review was performed between January 2009 to June 2015 on 36 patients who were diagnosed vascular malformations in the head and neck regions and were referred to our department for transarterial or percutaneous embolization before the surgical approach. Results: All 26 AVM were embolized with a transarterial approach: 18 with Onyx, 8 with a combination of PVA and coils. All patients with an AVM had a single endovascular approach. All 10 venous-lymphatic malformations were treated with a percutaneous sclerotherapy with ethanol injection. Complete healing was obtained in 30 patients (83%). In 6 (17%) there was a recurrence with necessity of a retreatment, 4 at 6 months, 2 at 12 months. Conclusion: Transarterial embolization and percutaneous scleroterapy is a safe treatment for artero-venous malformations before the surgical treatment. A multidisciplinary approach is fundamental to reduce the bleeding risks, the time of the surgical intervention and favouring a lesser demolitive approach particularly in large vascular malformations. Surgical complications occurred in 6 patients (17%); all of them developed infections of the surgical wounds; 3 of these developed necrosis of the skin flap used for the reconstruction with subsequent dehiscence. No other complications including sepsis, hemorrhages, cranial nerve palsies or neuropathies occurred.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"25 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81141741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Staged Hybrid Repair for Acute Type B Aortic Dissection of Right-Sided Aortic Arch","authors":"Takanori Shibukawa, Takashi Yamauchi, T. Masai","doi":"10.4172/2329-6925.1000315","DOIUrl":"https://doi.org/10.4172/2329-6925.1000315","url":null,"abstract":"Right-sided aortic arch is rare and the reported type B aortic dissection with this pathology has been limited. We report a case of staged hybrid surgical repair using short frozen elephant trunk for this pathology. The computed tomography after 3 month confirmed the shrinkage of aneurysm diameter and thrombosis of false lumen.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"24 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2017-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78970321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rare Outcome of LecompteâÂÂs Maneuver: SVC Compression due to Retro Aortic Innominate Vein","authors":"R. Kalra, R. Joshi, R. Joshi, Neeraj Aggarwal","doi":"10.4172/2329-6925.1000314","DOIUrl":"https://doi.org/10.4172/2329-6925.1000314","url":null,"abstract":"The impact of Lecompte’s maneuver on superior vena cava (SVC) has never been mentioned before. We think that in certain anatomical subsets, Lecompte’s maneuver can result in superior vena cava narrowing. We present a case report of patient with Tetralogy of Fallot with absent pulmonary valve with retro-aortic innominate vein who developed SVC thrombosis after Lecompte’s maneuver.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"31 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77086994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Prevalence of, Hypertension and Diabetes in Ogugu, Ogbagebe and Ofabo, Ofu and Olamaboro Lga, Kogi State, Nigeria: A Report","authors":"A. Abu","doi":"10.4172/2329-6925.1000313","DOIUrl":"https://doi.org/10.4172/2329-6925.1000313","url":null,"abstract":"Urinalysis, Malaria Parasite test, blood pressure checks and body mass index was calculated for the people of Ogugu, Ogbegebe and Ofabo Communities, diagnoses made and drugs administered. 356 Persons benefited from this scheme out of which 25 (7.02%) were children and 331 (92.97%) adults. 95 suffered from high blood pressure (26.69%) with the highest being 250/120 mmhg, 11 were diabetic (3.09%).","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"122 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77944468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Forehead Pseudoaneurysm after Falling Down: A Case Report","authors":"J. Kuo, T. Pao","doi":"10.4172/2329-6925.1000312","DOIUrl":"https://doi.org/10.4172/2329-6925.1000312","url":null,"abstract":"Forehead pseudoaneurysm after falling down is a rare condition. We report a case of a patient with a 2-month history of a forehead growing mass after falling down and bumping her right forehead. The 3-dimensional computed tomography (CT) angiography showed a hyperdense lesion with internal enhancing focus and supplying by one small branch of right superficial temporal artery (STA). Surgical resection of the pseudoaneurysm with coagulation of the feeding artery was performed. However, there was profuse bleeding complication while drainage tube removal, an emergent explored surgical hemostasis was done. In this article, in addition to presenting the clinical course of an unusual case, we wanted to give emphasis to that ligation of the proximal and distal vessels are necessary while surgical resection of the pseudoaneurysm.","PeriodicalId":17397,"journal":{"name":"Journal of Vascular Medicine & Surgery","volume":"33 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76467245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}