Electrical alternans in a case of electrical shock
... days. He had touched a live cable carrying volts during micturition. He had lost his consciousness for half an hour after accident, but was regain consciousness. He was relatively asymptomatic for around 24 hours and then he had gradually developed shortness of breath associated with dry cough. He h ...
... days. He had touched a live cable carrying volts during micturition. He had lost his consciousness for half an hour after accident, but was regain consciousness. He was relatively asymptomatic for around 24 hours and then he had gradually developed shortness of breath associated with dry cough. He h ...
Cardiac Physiology
... • We don’t want Summation and tetanus in our myocardium. • Because long refractory period occurs in conjunction with prolonged plateau phase, summation and tetanus of cardiac muscle is impossible • Ensures alternate periods of contraction and relaxation which are essential for pumping blood ...
... • We don’t want Summation and tetanus in our myocardium. • Because long refractory period occurs in conjunction with prolonged plateau phase, summation and tetanus of cardiac muscle is impossible • Ensures alternate periods of contraction and relaxation which are essential for pumping blood ...
Ashley Powerpoint Presentation NURS457
... What Hardware is used? (Cont.) Wireless Transmitter Device Wirelessly transmits data from ICD Information sent to healthcare provider via secure server ...
... What Hardware is used? (Cont.) Wireless Transmitter Device Wirelessly transmits data from ICD Information sent to healthcare provider via secure server ...
PDF
... made of these potentials. The advent of the vacuum tube and amplification and, more recently, of solidstate technology has made possible better representation of the bioelectric potentials. These developments, combined with a large amount of physiological research activity, have opened many new aven ...
... made of these potentials. The advent of the vacuum tube and amplification and, more recently, of solidstate technology has made possible better representation of the bioelectric potentials. These developments, combined with a large amount of physiological research activity, have opened many new aven ...
Unit 4 Exam Name Multiple Choice (2 points each) Where does
... 12. A tiny balloon inserted to keep a passageway open into a blood vessel is called a(n) ________ a. angioplasty b. angiogram c. MRI d. stent 13. The scientific term for a heart attack is __________. a. stroke b. myocardial infarction c. angina d. thrombosis 14. In a coronary bypass one end of the b ...
... 12. A tiny balloon inserted to keep a passageway open into a blood vessel is called a(n) ________ a. angioplasty b. angiogram c. MRI d. stent 13. The scientific term for a heart attack is __________. a. stroke b. myocardial infarction c. angina d. thrombosis 14. In a coronary bypass one end of the b ...
CV_Physiology_reviewsheet
... 12. What was the heart rate after treatment with atropine? _____ bpm with atropine 13. Are the effects of pilocarpine and atropine the same or opposite? ...
... 12. What was the heart rate after treatment with atropine? _____ bpm with atropine 13. Are the effects of pilocarpine and atropine the same or opposite? ...
Brugada Syndrome Presenting as Polymorphic Ventricular
... prior episodes of prolonged syncope, this patient had been presumed to have a seizure disorder. Limited reports in the literature suggest that spontaneous conversion of lifethreatening ventricular tachyarrhythmias is more common in young women without structural heart disease, torsade de pointes as ...
... prior episodes of prolonged syncope, this patient had been presumed to have a seizure disorder. Limited reports in the literature suggest that spontaneous conversion of lifethreatening ventricular tachyarrhythmias is more common in young women without structural heart disease, torsade de pointes as ...
Control for state when applying HRV methods!
... • RR tachogram unevenly sampled - Resampling introduces errors. • Spectral methods assume linear, stationary processes • RR tachogram is nonstationary; ectopy, artefact or intrinsic cardiovascular changes ...
... • RR tachogram unevenly sampled - Resampling introduces errors. • Spectral methods assume linear, stationary processes • RR tachogram is nonstationary; ectopy, artefact or intrinsic cardiovascular changes ...
Arrythmias 3
... 2nd Degree AV Block, Type I • Etiology: Each successive atrial impulse encounters a longer and longer delay in the AV node until one impulse (usually the 3rd or 4th) fails to make it through the AV node. ...
... 2nd Degree AV Block, Type I • Etiology: Each successive atrial impulse encounters a longer and longer delay in the AV node until one impulse (usually the 3rd or 4th) fails to make it through the AV node. ...
Pediatric pre-excitation: Say “no” to drags?
... was not employed for the population as a whale. Furthermore, tke method of follow-up was not standardized and asymptomatic recurrent tachycardias may thus have been missed. The potential impact of amiarrhythmic drugs on decreasingthe likelihood of arrhythmia recurrence cannot be ignored in the group ...
... was not employed for the population as a whale. Furthermore, tke method of follow-up was not standardized and asymptomatic recurrent tachycardias may thus have been missed. The potential impact of amiarrhythmic drugs on decreasingthe likelihood of arrhythmia recurrence cannot be ignored in the group ...
Left ventricular assist devices as a part of heart transplant
... continuous-flow left ventricular assist devices (LVAD), has grown fast in recent years. It is reasonable to assume that the number of LVAD implantations will continue to grow and will soon exceed the number of HTx. In its recent Guidelines for the diagnosis and treatment of acute and chronic heart f ...
... continuous-flow left ventricular assist devices (LVAD), has grown fast in recent years. It is reasonable to assume that the number of LVAD implantations will continue to grow and will soon exceed the number of HTx. In its recent Guidelines for the diagnosis and treatment of acute and chronic heart f ...
cv_anatomy
... ◦ As arterioles branch off and become smaller, the blood vessels become capillaries ◦ Structured very simply so nutrients and wastes can be exchanged in the body’s tissues ...
... ◦ As arterioles branch off and become smaller, the blood vessels become capillaries ◦ Structured very simply so nutrients and wastes can be exchanged in the body’s tissues ...
EKG
... After a return to the baseline there is a short delay while the heart’s AV node depolarizes and sends a signal along the atrioventricular bundle of conducting fibers (Bundle of His) to the Purkinje fibers, which bring depolarization to all parts of the ventricles in a wave that is almost simultaneou ...
... After a return to the baseline there is a short delay while the heart’s AV node depolarizes and sends a signal along the atrioventricular bundle of conducting fibers (Bundle of His) to the Purkinje fibers, which bring depolarization to all parts of the ventricles in a wave that is almost simultaneou ...
A cAse of grAnisetron AssociAted intrAoperAtive cArdiAc Arrest M a
... the treatment of postoperative (PONV) and chemotherapy induced nausea and vomiting (CINV). Even though its clinical safety has been established in many trials, they have the ability to block human cardiac sodium and potassium channels which may cause adverse cardiac effects and may predispose to car ...
... the treatment of postoperative (PONV) and chemotherapy induced nausea and vomiting (CINV). Even though its clinical safety has been established in many trials, they have the ability to block human cardiac sodium and potassium channels which may cause adverse cardiac effects and may predispose to car ...
Extraction of P wave and T wave in Electrocardiogram using
... signal decreases as lower details are removed from the original signal. As the lower details are removed, the signal becomes smoother and the noises disappears since noises are marked by high frequency components picked up along the ways of transmission. B. QRS-Detection QRS detection is one of the ...
... signal decreases as lower details are removed from the original signal. As the lower details are removed, the signal becomes smoother and the noises disappears since noises are marked by high frequency components picked up along the ways of transmission. B. QRS-Detection QRS detection is one of the ...
Non-Invasive Cardiovascular Examination
... The electrocardiogram record surface (and intravascular) electrical potential changes during depolarization and repolarization. As an electrical recording modality, the ECG is of primary diagnostic importance (sensitivity 100%) in diagnosis of cardiac electrical abnormalities of repolarization and d ...
... The electrocardiogram record surface (and intravascular) electrical potential changes during depolarization and repolarization. As an electrical recording modality, the ECG is of primary diagnostic importance (sensitivity 100%) in diagnosis of cardiac electrical abnormalities of repolarization and d ...
Cardiac Resynchronization Therapy (CRT)
... will perform a number of basic tests, prep for the surgery and go over the anesthesia procedures. If a diagnostic assessment has already been completed the therapy can be implemented quickly. The duration of the procedure depends on many different factors. A suitable vein must be found and the elect ...
... will perform a number of basic tests, prep for the surgery and go over the anesthesia procedures. If a diagnostic assessment has already been completed the therapy can be implemented quickly. The duration of the procedure depends on many different factors. A suitable vein must be found and the elect ...
Pediatric Cardiac Disorders
... TOUCH is the IL Assoc. This link opens a broad site, then click on IL. Support group with lots of links for families and persons with CHD Website: From Cincinnati Children’s Hospital ...
... TOUCH is the IL Assoc. This link opens a broad site, then click on IL. Support group with lots of links for families and persons with CHD Website: From Cincinnati Children’s Hospital ...
Cardiac Involvement in Sporadic Inclusion
... no recent infections, and no cardiovascular risk factors were present. However, the patient had used a wheelchair since his mid-20s because of sporadic inclusion-body myositis, as established by muscle biopsy. There were no other physical findings. Inflammatory markers and troponin T were normal, an ...
... no recent infections, and no cardiovascular risk factors were present. However, the patient had used a wheelchair since his mid-20s because of sporadic inclusion-body myositis, as established by muscle biopsy. There were no other physical findings. Inflammatory markers and troponin T were normal, an ...
Dobutamine Myocardial Perfusion Imaging Test
... Dobutamine Myocardial Perfusion Imaging Test This test takes approximately 4 1/2 hours. A Dobutamine Myocardial Perfusion Imaging test uses a radioactive substance (not a dye) to produce pictures of the heart muscle. The radioactive substance gives off a small amount of radiation which can be seen w ...
... Dobutamine Myocardial Perfusion Imaging Test This test takes approximately 4 1/2 hours. A Dobutamine Myocardial Perfusion Imaging test uses a radioactive substance (not a dye) to produce pictures of the heart muscle. The radioactive substance gives off a small amount of radiation which can be seen w ...
Heart*s Place in the Circulation
... The Anatomy of the Heart • What is the Pericardial Cavity? • Surrounds the heart • Lined by pericardium • Two layers • Visceral pericardium (epicardium) • Covers heart surface ...
... The Anatomy of the Heart • What is the Pericardial Cavity? • Surrounds the heart • Lined by pericardium • Two layers • Visceral pericardium (epicardium) • Covers heart surface ...
Looking at a heart
... Look at the second diagram. Cut upwards carefully into the left atrium along the line shown in the diagram. ...
... Look at the second diagram. Cut upwards carefully into the left atrium along the line shown in the diagram. ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.