Hypotension

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Intracranial hypotension secondary to spinal arachnoid cyst rupture presenting with acute severe headache: a case report

3p toshiba25 09-12-2011 29 3   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Atrial myxoma presenting with orthostatic hypotension in an 84-year-old Hispanic man: a case report

3p thulanh28 16-12-2011 26 3   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Challenging the rationale of routine vasopressor therapy for management of hypotension...

2p coxanh_6 29-10-2011 16 2   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Early norepinephrine resuscitation of lifethreatening hypotensive septic shock: it can do the job, but at what cost?

1p coxanh_7 31-10-2011 15 2   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Tamsulosin-induced severe hypotension during general anesthesia: a case report

3p toshiba25 09-12-2011 28 2   Download

If the complaint is of dizziness establish if it is vestibular—vertigo, episodic, precipitated by change in position, associated nausea, vomiting, deafness or tinnitus—or non-vestibular—‘light headed’, constant, associated with hyperventilation, palpitations, syncope, sweating, pallor, headache. Examine the nervous and cardiovascular systems carefully. Look at the tympanic membranes. Check for orthostatic hypotension. Vestibular causes 2 Labyrinthitis. 2 Meniere’s disease. 2 Acoustic neuroma or other cerebello-pontine angle tumour.

626p lulanphuong 22-03-2012 72 38   Download

Huyết áp thấp (Hypotension – arterielle) là huyết áp luôn luôn ở con số thấp hơn đa số người bình thường ở cùng lứa tuổi. Huyết áp phụ thuộc vào hai yếu tố tác động chủ yếu lưu lượng máu và sức cản ngoại vi lưu lượng máu là phụ thuộc vào sức co bóp cơ tim, chủ yếu là chức năng bóp của tâm thất trái, sức cản ngoại vi phụ thuộc chủ yếu vào độ đàn hồi của thành mạch máu. Có hai loại huyết áp thấp: huyết áp tiên phát và huyết áo thấp thứ phát.

5p hibarbie 16-09-2010 122 32   Download

Introduction: Acetylsalicylic acid (ASA, aspirin) ( Figure 4.1) has been being used as an analgesic-antipyretic for a long time; it is contained in many of over-the-counter drugs. Although ASA is relatively safe, various poisoning symptoms, such as lowered consciousness levels, hypotension, pulmonary edema and convulsion, were reported upon ingestion of a large amount of this drug [1]. For analysis of ASA, methods by HPLC [2–19], GC [20–23], GC/MS [24] and capillary electrophoresis [25–27] were reported; among these methods, HPLC is most popular. ...

8p bigbaby87 01-09-2010 73 15   Download

The patient admitted to the hospital is already an individual who is at risk because of an underlying pathology that requires inpatient care. When patients decline, they have evidence of clinical deterioration (hypoxia, hypotension, tachypnoea, tachycardia, altered level of consciousness) that is often documented in the medical record 8 to 48 hours prior to a crisis being detected

418p ozon_ozon 02-05-2012 39 10   Download

Introduction: Phenothiazine drugs, including chlorpromazine and levomepromazine, have been being widely used as neuroleptics (major tranquilizers), antiparkinsonian drugs and antihistaminics for a long time [1]. Table 1.1 shows chemical structures of representative phenothiazines. These drugs show blocking action on D2 receptors of dopaminergic neurons; there is close relationship between the receptor blocking and tranquilizing actions. The dopamine D2 receptor-blocking actions provoke extrapyramidal symptoms, such as muscular stiffness, tremor and ptyalism.

7p bigbaby87 01-09-2010 62 9   Download

Overdose, including self-poisoning, causes bradycardia, heart block, hypotension and low output cardiac failure that can proceed to cardiogenic shock; death is more likely with agents having membrane stabilising action (see Table 23.1). Bronchoconstriction can be severe, even fatal, in patients subject to any bronchospastic disease; loss of consciousness may occur with lipid-soluble agents that penetrate the central nervous system. Receptor blockade will outlast the persistence of the drug in the plasma. Rational treatment includes: • Atropine (1-2 mg i.v.

18p bigbaby87 03-09-2010 50 9   Download

Ở người bình thường, chỉ số huyết áp dao động trong khoảng từ 110120mmHg đối với huyết áp tâm thu và 70-80 mmHg đối với huyết áp tâm trương.

5p hibarbie 16-09-2010 79 9   Download

Theo Tổ Chức Y Tế Thế Giới, huyết áp thấp là biểu hiện của sự rối loạn chức năng vỏ não của trung khu thần kinh vận mạch. Bệnh huyết áp thấp có thể bao gồm huyết áp thấp triệu chứng và huyết áp thấp tư thế... Huyết áp thấp là khi trị số huyết áp tâm thu dưới 90mmHg và huyết áp tâm trương dưới 60mmHg, ...

7p abcdef_39 22-10-2011 28 9   Download

Tham khảo sách 'clinical problems in general medicine and surgery_1', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

234p mnemosyne75 02-02-2013 31 9   Download

Anyone who administers drugs acting on cardiovascular adrenergic mechanisms requires an understanding of how they act in order to use them to the best advantage and with safety. Adrenergic mechanisms Classification of sympathomimetics: by mode of action and selectivity for adrenoceptors Individual sympathomimetics Mucosal decongestants Shock Chronic orthostatic hypotension Adrenaline, noradrenaline and dopamine are formed in the body and are used in therapeutics. The natural synthetic path is: tyrosine — dopa — dopamine — noradrenaline — adrenaline.

13p bigbaby87 03-09-2010 50 8   Download

Introductio: β-Blockers (β-adrenergic receptor antagonists) block the effects of catecholamines on signal transmission through β-receptors; they cause hypotension by decreasing the heart beat rate and cardiac output, and prevent the attacks of arrhythmia and angina pectoris. In the brain, the drugs attenuate migraine by suppressing the dilation of blood vessels; in the eye, they decrease intraocular pressure by suppressing the production of aqueous humor.

8p bigbaby87 01-09-2010 60 7   Download

First published in 1992, Clinical Problems in General Medicine and Surgery was principally written for senior medical students and interns, about to or already experiencing the real world of medical practice. It was a departure from 'traditional' medical texts in that the book dealt with the real problems of clinical medicine through scenarios encountered in the emergency department, on the wards and in outpatient clinics.

195p mnemosyne75 02-02-2013 30 7   Download

Hypothermia: Treatment When a patient is hypothermic, target organs and the cardiovascular system respond minimally to most medications. Moreover, cumulative doses can cause toxicity during rewarming because of increased binding of drugs to proteins, and impaired metabolism and excretion. As an example, the administration of repeated doses of digoxin or insulin would be ineffective while the patient is hypothermic, and the residual drugs are potentially toxic during rewarming. Achieving a mean arterial pressure of at least 60 mmHg should be an early objective.

5p ongxaemnumber1 29-11-2010 32 5   Download

Decreased aldosterone synthesis may be due to primary adrenal insufficiency (Addison's disease) or congenital adrenal enzyme deficiency (Chap. 336). Heparin (including low-molecular-weight heparin) inhibits production of aldosterone by the cells of the zona glomerulosa and can lead to severe hyperkalemia in a subset of patients with underlying renal disease, diabetes mellitus, or those receiving K+-sparing diuretics, ACE inhibitors, or NSAIDs.

5p ongxaemnumber1 29-11-2010 43 5   Download

Immune-Mediated Reactions Acute Hemolytic Transfusion Reactions Immune-mediated hemolysis occurs when the recipient has preformed antibodies that lyse donor erythrocytes. The ABO isoagglutinins are responsible for the majority of these reactions, although alloantibodies directed against other RBC antigens, i.e., Rh, Kell, and Duffy, may result in hemolysis. Acute hemolytic reactions may present with hypotension, tachypnea, tachycardia, fever, chills, hemoglobinemia, hemoglobinuria, chest and/or flank pain, and discomfort at the infusion site.

5p thanhongan 07-12-2010 42 5   Download