{"title":"Contrast-Induced Nephropathy","authors":"A. Elserafy, T. Abdelsalam","doi":"10.5772/intechopen.90457","DOIUrl":"https://doi.org/10.5772/intechopen.90457","url":null,"abstract":"With the worldwide increase in the incidence of atherosclerotic coronary artery disease, the rate of coronary interventions has increased. One of the serious complications of this procedure is contrast-induced nephropathy (CIN). This complication can lead to poor outcomes, with an increase in morbidity and mortality of patients. The pathophysiology and risk factors for the occurrence of contrast-induced nephropathy are several and interconnected. The most proposed management of this entity is prophylaxis and thus avoidance of its occurrence. We will take a deeper look on the pathophysiology, the mechanisms by which this complication is aggravated, and how to expect and manage such a problem.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114889518","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}
Yaser Alahamd, H. Swehli, A. Rahhal, Sundus Sardar, Mawahib Elhassan, Salma Alsamel, O. Ibrahim
{"title":"Calcium Channel Blockers","authors":"Yaser Alahamd, H. Swehli, A. Rahhal, Sundus Sardar, Mawahib Elhassan, Salma Alsamel, O. Ibrahim","doi":"10.5772/intechopen.90778","DOIUrl":"https://doi.org/10.5772/intechopen.90778","url":null,"abstract":"Vasospasm refers to a condition in which an arterial spasm leads to vasoconstriction. This can lead to tissue ischemia and necrosis. Coronary vasospasm can lead to significant cardiac ischemia associated with symptomatic ischemia or cardiac arrhythmia. Cerebral vasospasm is an essential source of morbidity and mortality in subarachnoid hemorrhage patients. It can happen within 3–15 days with a peak incidence at 7 days after aneurysmal subarachnoid hemorrhage (SAH). Calcium channel blockers are widely used in the treatment of hypertension, angina pectoris, cardiac arrhythmias, and other disorders like SAH vasospasm related and Migraine. The specific treatment of cerebral vasospasm helps improving cerebral blood flow to avoid delayed ischemic neurologic deficit by reducing ICP, optimizing the rate of cerebral oxygen demand, and enhancing cerebral blood flow with one of the following approaches: indirect pharmacological protection of brain tissue or direct mechanical dilation of the vasospastic vessel. Nimodipine is the standard of care in aneurysmal SAH patients. Nimodipine 60 mg every 4 hours can be used for all patients with aneurysmal SAH once the diagnosis is made for 21 days.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134338990","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":"Vascular Calcifications","authors":"Mehmet Erin Tüysüz, Mehmet Dedemoğlu","doi":"10.5772/intechopen.90287","DOIUrl":"https://doi.org/10.5772/intechopen.90287","url":null,"abstract":"Calcium-phosphate levels have an effect on the vascular wall. Calcium is a cation in human body. It is has a crucial effect on intracellular and extracellular mechanisms. Extracellular calcium levels are more than intracellular levels. In total serum, the calcium level is approximately 8.8–10.4. Parathormone and vitamin D regulate blood calcium levels. Phosphorus is more common than calcium in the human body. Most of the phosphorus is present in the skeletal system. Phosphorus level is approximately 2.5–4.5 mg/dl in blood. It is often observed calcification in cardiovascular system in some diseases such as chronic renal failure due to increased calciumphosphate levels. While the calcification seems in tunica intima layer of the vessel in atherosclerotic disease, it seems in tunica media layer of vessel in chronic renal failure with high uremic level. Vascular calcification is due to arterial stiffness, stenosis, and occlusion. Vascular and valvular calcifications are irreversible. Increased arterial stiffness destroys vascular compliance, causes left ventricular hypertrophy, and disrupts coronary perfusion. As a result, increased vascular calcification is associated with cardiovascular mortality.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"2018 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133036680","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":"Rehabilitation Strategies and Key Related Mechanisms Involved in Stroke Recovery","authors":"Hideki Nakano","doi":"10.5772/intechopen.91025","DOIUrl":"https://doi.org/10.5772/intechopen.91025","url":null,"abstract":"Poststroke rehabilitation requires a thorough understanding of the neural mechanisms underlying motor function recovery. This chapter outlines these mechanisms and also discusses the corresponding rehabilitation strategies based on the functional characteristics of the brain. The main topics we discuss are as follows: Although ipsilateral brain region activity is inhibited when using the limbs under normal conditions, it is thought that a decrease in this inhibition and the subsequent increased ipsilateral brain area activity post-injury promote recovery in the damaged contralateral neural network. For optimal poststroke motor function recovery, it is important to normalize the resulting imbalance in brain activity. Therefore, increased corticomotor excitation in the injured hemisphere or decreased excitation in the non-injured hemisphere must be promoted. Rehabilitation strategies include reducing non-paretic limb somatosensory input to decrease excitation in the non-injured hemisphere, increasing paretic limb somatosensory input to increase excitation in the injured hemisphere, increasing excitation in the injured hemisphere through movement training of the paretic hand and anesthesia of the paretic upper arm, increasing excitation in the injured hemisphere, or reducing excitation in the non-injured hemisphere. Considering the functional characteristics of the primary motor area, during the early stages after stroke, it is important to increase the somatosensory input to the paralyzed side and combine mental practices using motor imagery.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132411426","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}
María Yolanda Cruz Martínez, Karla Alejandra Cantú Saldaña, José Juan Antonio Ibarra Arias
{"title":"Available Therapeutics after a Stroke: Current and Promising Options","authors":"María Yolanda Cruz Martínez, Karla Alejandra Cantú Saldaña, José Juan Antonio Ibarra Arias","doi":"10.5772/intechopen.91282","DOIUrl":"https://doi.org/10.5772/intechopen.91282","url":null,"abstract":"Morbidity and mortality after a cerebrovascular event have increased during the past few years, even after extensive efforts have been made concerning research in prevention, acute treatment, pharmacotherapy, revascularization, and rehabilitation. The functional deficits that arise from an ischemic event are related to the increasing chronic disability that results from lower mortality rates. More people are becoming chronically disabled; currently, as much as 90% of survivors are affected and face difficulties to continue with daily life activities. In this chapter, we briefly review the pathophysiology of ischemia and immediate clinical attention to the event. We argue about the need to seek new pharmacological and nonpharmacological alternatives and discuss the most representative in the field of neuroprotection and neurorestoration. In addition, we review the most relevant dietetic strategies and physical rehabilitation therapies, all aimed at improving the survivors’ quality of life.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122171548","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":"Brain Cooling and Cleaning: A New Perspective in Cerebrospinal Fluid (CSF) Dynamics","authors":"H. Burhan, I. Cherian","doi":"10.5772/intechopen.90484","DOIUrl":"https://doi.org/10.5772/intechopen.90484","url":null,"abstract":"The function of the cerebrospinal fluid (CSF) has long been considered for mechanical protection and recently attributed to the supply of nutrients to the brain. However, we hypothesize that the brain is a water-cooled and water-cleaned system. Recent studies on the glymphatic pathways and the introduction of cisternostomy as a surgical procedure for traumatic brain injury reveal a vast and in-depth functionality of the CSF, which works in synchrony with the cardiopulmonary rhythms to act as a buffer for optimum cerebral function. The nasal sinuses are located around the suprasellar cistern, and the evaporating wet mucosa within them during the breathing contributes to local cooling, whereas the nocturnal activation of AQP4 channels allows CSF-ISF exchange. The resultant “cooling and cleaning” of the brain not only maintains a physiological equilibrium but also opens doors for understanding and treating pathophysiology underlying common degenerative and neuro-inflammatory diseases. This chapter describes the novel theory of brain cooling and cleaning and the clinical and experimental evidence to support this hypothesis.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132101114","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 Treatment of Brain Aneurysms","authors":"D. Altschul, T. Vats, Santiago R. Unda","doi":"10.5772/intechopen.88964","DOIUrl":"https://doi.org/10.5772/intechopen.88964","url":null,"abstract":"","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125010389","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}
Bing Zhao, Haixia Xing, Sheng-hao Ding, Yao-hua Pan, J. Wan
{"title":"Poor-Grade Aneurysmal Subarachnoid Hemorrhage: Diagnosis, Therapeutical Management, and Prognosis","authors":"Bing Zhao, Haixia Xing, Sheng-hao Ding, Yao-hua Pan, J. Wan","doi":"10.5772/intechopen.89993","DOIUrl":"https://doi.org/10.5772/intechopen.89993","url":null,"abstract":"Aneurysmal subarachnoid hemorrhage (aSAH) is a devastating neurological condition and these patients often have unfavorable outcomes at the long-term follow-up. Poor-grade aSAH is a severe subtype of aSAH and is defined as World Federation of Neurosurgical Surgeon (WFNS) grade IV or V. All patients should be treated by a multidisciplinary team that consists of vascular neurosurgeons, interventional neuroradiologists, neurologists, and anesthetists. Aneurysm rebleeding occurs in the poor-grade aSAH within the first 72 h after ictus. Timing of treatment for aSAH has shifted from delayed to early treatment of ruptured aneurysms, and there will be a trend toward early or ultra-early treatment for poor-grade aSAH. However, there is no consensus regarding the optimal timing of treatment for poor-grade aSAH. Endovascular coiling has provided a viable alternative to surgical clipping. An increasing number of patients have received endovascular treatment. There are limited data on high-level clinical trials focused on the treatment of poor-grade aSAH. An accurate prediction model remains challenging. Predicting long-term outcome is essential to support treatment decision-making. We reviewed the current therapeutical management and prognosis of poor-grade aSAH.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127480027","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":"Aging, Cerebrovascular Burden, and Cognitive Decline","authors":"Kyoungjoo Cho","doi":"10.5772/intechopen.89854","DOIUrl":"https://doi.org/10.5772/intechopen.89854","url":null,"abstract":"Brain function is supported by the cerebrovascular system, and changes in vascular phenotype and function through aging process make the brain more susceptible to neurodegenerative diseases, particularly cognitive decline. Correspondingly, the incidence of dementia and the prevalence of neurodegenerative diseases have also increased. In aging, the vessels have been exposed to the inflammatory state by harmful factors referred to as the senescence-associated secretory phenotype (SASP). Aging is a complex process that is associated with accumulated cellular stresses and an increased stress response. The aging in the brain includes structural and functional changes, which cause brain pathologies in the elderly. Particularly, damaged neurovascular event can be a consequent trigger in the pathology of vascular cognitive impairment. This chapter introduces the current knowledge on cognitive decline according to cerebrovascular aging relevant to endothelial senescence and the changes in the SASPs.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128602269","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":"Neuronavigated and Laparoscopic-Assisted Ventriculoperitoneal Shunt Placement","authors":"Sarah Wilson, M. Crozier, Antonios El Helou","doi":"10.5772/intechopen.89252","DOIUrl":"https://doi.org/10.5772/intechopen.89252","url":null,"abstract":"Hydrocephalus is an abnormal accumulation of excess cerebrospinal fluid (CSF) in the brain causing increased intracranial pressure, which can arise from a variety of causes, including congenital, acquired, or idiopathic pathologies. Ventriculoperitoneal (VP) shunting is most commonly used to treat hydrocephalic patients, relieving the increased intracranial pressure by draining excess CSF from the ventricles to the peritoneal cavity. VP shunts are primarily completed using either an open or a more minimally invasive neuronavigated laparoscopic-assisted surgical technique. There is a high level of surgical complications, shunt failures and revision rates following VP shunting. It is suggested that different surgical techniques are associated with varying degrees of patient outcomes, surgical complications, and revision rates, with the less invasive laparoscopic-assisted approach producing improved results. We present our results on 14 consecutive hydrocephalic patients, analyzed retrospectively between 2017 and 2019, investigating the benefits offered by the neuronavigated laparoscopic-assisted insertion of VP shunts. Additionally, we explain our workflow and procedural technique. By investigating these differences, changes can be implemented in current routine procedures to ameliorate patient safety, surgical complications, and revision rates.","PeriodicalId":324396,"journal":{"name":"New Insight into Cerebrovascular Diseases - An Updated Comprehensive Review","volume":"32 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133658587","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}