SCPECG , which stands for Standard communications protocol for computer assisted electrocardiography , is a standard for ECG traces, annotations, and metadata , that specifies the interchange format and a messaging procedure for ECG cart to host communication and for retrieval of SCPECG records from the host to the ECG cart. It is defined in the joint ANSI AAMI standard EC71 2001 and in the CEN standard EN 1064 2005. History The SCP Standard was first developed between 1989 to 1991 during a European AIM R&D project. External links http www.openecg.net OpenECG The http www.openecg.net OpenECG& 93 Group supports SCPECG by providing and supporting open source implementations and consistent application the standard. Other ECG data formats DICOM , HL7 aECG References references Category Cardiology compu storage stub standard stub fr SCPECG ... more details
wiktionary SCP may refer to Agencies, organizations, and political parties Salisbury City Police , a defunct city police force in Wiltshire , England operational between 1838 1943. Scottish Christian Party Society of Catholic Priests , a community of priests in the Anglican Communion Society of Chiropodists and Podiatrists Spiritual Counterfeits Project , a prominent Christian evangelical parachurch organisation Sporting Clube de Portugal , a sports club in Lisbon, Portugal, often known outside Portugal as Sporting Lisbon Syrian Communist Party Sudanese Communist Party Companies Samsung Corning Precision Glass , a Korean American joint venture company Seattle Computer Products , an American computer company Smyrne Cassaba & Prolongements , a defunct Ottoman railway company Sociedad Comercial del Plata , an Argentine real estate and tourist attraction developer Computing and technology secure copy scp , a command for securely transferring files on UNIX systems. Known as secure copy , secure copy protocol or secure copy program . FreeSpace 2 Source Code Project , a collaborative fan project to create an upgraded engine of the computer game FreeSpace 2 Service Control Point , a component of an intelligent network architecture for managing telephony networks Softcore processor or soft microprocessor , a processor implemented through a hardware definition language on a programmable logic device Service class provider, in the Digital Imaging and Communications in Medicine standard Session Control Protocol Industry and professional certifications Sun Certified Professional , a professional certification program by Sun Microsystems Other United States Army Command and General Staff College School for Command Preparation , a school at Fort Leavenworth South Caucasus Pipeline South ... protein disambig Category Initialisms de SCP fa SCP fr SCP ko SCP it SCP nl SCP ja SCP pl SCP pt SCP ... more details
ECG may refer to East Coast Greenway , an American project regarding non motorized transportation Electrocardiograph Electrocardiogram , a graphic produced by an electrocardiograph Electronic Content Guide , a guide to TV and other provider content epicatechin gallate , a flavonoid Equine chorionic gonadotropin , an equine hormone The Early College at Guilford , a small high school in Greensboro, North Carolina disambig Category Initialisms de ECG fr ECG it ECG ja ECG pl ECG ... more details
orphan date September 2008 SCP ISM , or Screened Coulomb Potentials Implicit Solvent Model is a continuum approximation of solvent effects for use in computer simulations of biology biological macromolecule s, such as protein s and nucleic acid s, usually within the framework of molecular dynamics . It is based on the classic theory of Intermolecular force polar liquid s, as developed by Peter Debye and corrected by Lars Onsager to incorporate reaction field effects. The model can be combined with Quantum chemistry quantum chemical calculations to formally derive a continuum model of solvent effects suitable for computer simulations of small and large molecular systems. External links http cmm.cit.nih.gov mago scpism qualitative.html An essay on SCP ISM http www.charmm.org CHARMM website Category Molecular dynamics simulation software stub science software stub ... more details
Sky 14 32 27.42 33 32 25.1 1000000 Image Scp 06f6 ref nasa esa hubble.jpg right thumb 200px The sudden appearance of the transient mystery object SCP 06F6 in Hubble Space Telescope Hubble s field of view. The lower image quadrant represents a zoomed in view. SCP 06F6 is or was an astronomical object of unknown type, discovered on 21 February 2006 in the constellation Bo tes ref name ns http space.newscientist.com article dn14738 space firefly resembles no known object.html Space firefly resembles no known object , New Scientist News , 16 September 2008 ref during a survey of galaxy cluster CL 1432.5 3332.8 with the Hubble Space Telescope s Advanced Camera for Surveys Wide Field Channel. ref name barbary Barbary et al. http arxiv.org abs 0809.1648v1 Discovery of an Unusual Optical Transient with the Hubble Space Telescope accepted September 8, 2008, for later publication in the Astrophysical Journal ref According to research authored by Kyle Barbary of the Supernova Cosmology Project , the object brightened over a period of roughly 100 days, reaching a peak intensity of apparent magnitude magnitude 21 it then faded over a similar period. ref name barbary Barbary et al. report that the spectrum ... in early August 2006 which appears to show an X ray glow around SCP 06F6, ref name nature ... SCP 06F6 one of the most luminous transient phenomenon known as of that date. ref name Quimby cite ... had initially conjectured that SCP 06F6 might be an extremely remote supernova relativistic ... al. that SCP 06F6 may represent a new class of celestial object . ref name barbary ref name gans The analysis ... alternative explanations for SCP 06F6, in plausibility order the tidal destruction of a CO white dwarf ... Origin of the Peculiar Transient SCP 06F6 Noam Soker, Adam Frankowski, Amit Kashi Technion ... www.iop.org EJ abstract 1538 4357 697 2 L129 Astrophysical Journal Boris T. G nsicke et al, SCP 06F6 ... objects discovered in 2006 es SCP 06F6 pl SCP 06F6 ru SCP 06F6 fi SCP 06F6 ... more details
File System SATRO EKG.jpg thumb right 250px SATRO ECG System SATRO EKG a computer program analysing electro cardiology signals. It is based on the SFHAM SFHAM model . It facilitates the evaluation of electrical activity of myocardium, and therefore, early detection of coronary heart disease ischemic changes in the heart . Reference tests The reference tests of the SATRO ECG method in relation to SPECT perfusive scintigraphy SPECT conducted in Military Medical Institute in Warsaw and Medical University of Wroclaw proved the possibility to use this method to detect coronary heart disease coronary heart disease CHD . A very high Sensitivity and specificity in detecting this disease were obtained. Sensitivity Se , specificity Sp , Positive predictive value predictive value of positive values results PV and Negative predictive value negative values results PV are presented in the grid below class wikitable Reference tests Se Sp PV PV SATRO ECG SPECT rest 100 74 86 100 SATRO ECG SPECT exercise 100 83 92 100 Comparison of SATRO ECG results SPECT exercise for particular parts of the cardiac muscle is presented in the grid below r p1 class wikitable IS AW IW LW Se 98 93 97 89 Sp 90 90 84 93 PV 70 81 89 77 PV 98 96 95 97 where IS interventricular septum , AW Anterior wall of heart anterior wall , IW Diaphragmatic surface of heart inferior wall , LW lateral wall . The results of the tests prove a high correlation the between SATRO ECG results and SPECT in the case of detection of coronary heart disease coronary heart disease CHD r p1 Usage An advantage of this method is a fast and precise analysis of the ECG results in the rest, which enables easy and safe measurement detection of ischemic heart disease with very high diagnostic sensitivity and specificity early prevention of the coronary disease, objective and not only statistical risk validation monitoring of the effects of the treatment ... links http www.satro.pl SATRO ECG method web page english http www.ibf.com.pl Instytut Bada Fizykomedycznych ... more details
shock on basis of an atrial or ventricular arryhtmia Portable ECG used in telemedicine . These machines are used to send ECG recordings via a telecommunications link, such as telephone , cellular data communication or Internet Conventional ECG machines to be used in primary healthcare settings where a trained cardiologist is not available See also Medical monitor Holter monitor Open ECG project SCPECG References references Source Renato M.E. Sabbatini Sabbatini, RME http www.informaticamedica.org.br ... of time and amplitude which are measured and form the basis for automated ECG analysis A digital representation of each recorded ECG channel is obtained, by means of an analog digital conversion device ... app pdf app148.pdf BioPac Systems. Application Note Automated ECG Analysis ref , the time delay ... ECG analysis and teaching. Proc. Computers in Cardiology Jerusalem, Israel 19 22 September ... logics algorithms, cluster analysis ref Bortolan, G., et al. ECG classification with neural networks ... industries of ECG machines is now entirely digital, and many models incorporate embedded software for analysis and interpretation of ECG recordings with 3 or more leads. Consumer products, such as home ECG recorders for simple,1 channel heart arrhythmia detection, also use basic ECG analysis ... Art20 1 Kligfield1 6f .pdf Kligfield, P. Automated Analysis of ECG Rhythm http www.physionet.org Physionet Use dmy dates date September 2010 DEFAULTSORT Automated Ecg Interpretation Category Health ... more details
Orphan date February 2009 The openECGproject is an online community dedicated to developing an open source hardware and Open source software software solution for electrocardiography . The project addresses the needs of doctors and hospitals, especially in the Third World , who are unable to afford expensive commercial products. The ultimate goal of the project is to produce a 12 lead PC based ECG with interpretive software. ref cite news title Get on Board with Open Source ECG Project url http www.medgadget.com archives 2008 12 get on board with opensource ecg project.html newspaper medGadget date December 4, 2008 ref OpenECGproject also aims to develop a wireless ECG device as well as versions for handheld devices, including smartphone s. References reflist External links http www.openecg.net Open ECG Project Category Free software projects Category Free healthcare software ... more details
A cardiac event monitor is a device used to monitor patients with transient cardiac symptoms. There are two broad classifications for cardiac event monitors manual or dumb and automatic. Automatic ECG event monitors such have the ability to monitor the patient s ECG and make recordings of abnormal events without requiring patient intervention. Manual ECG event recorders require patient to be symptomatic and to activate the device to record an event this makes these devices useless whilst, for example, the patient is sleeping. An example is the transtelephonic cardiac event monitor. This monitor contacts ECG technicians, via telephone, on a regular basis transmitting ECG rhythms for ongoing monitoring. The transtelephonic cardiac event monitor can normally store approximately five cardiac events usually lasting 30&ndash 60 seconds. Example gallery Image Holter monitor.JPG Cardiac event monitor. gallery See also Holter monitor Cardiac stress test Treadmill testing Tilt table test Transtelephonic monitor Echocardiogram Esophageal electrophysiologic procedure Intracardiac electrophysiologic procedure References http www.novacor.com Automatic ECG event recorder and information on ECG monitoring http www.cardiolabs.com Patient Care Services Event Monitoring.htm Cardiac Event Monitor Cardiolabs http www.clevelandclinic.org heartcenter pub guide tests electrocard ambmonitor.htm?index 10533 loop Cardiac event monitor http www.americanheart.org presenter.jhtml?identifier 3 Types of monitors and information on ECG monitoring Category Cardiology medical equipment stub ... more details
Atrial enlargement refers to a condition where the left atrium or right atrium of the heart is larger than would be expected. It can also affect both atria. ref http library.med.utah.edu kw ecg ecg outline Lesson7 index.html ref Types include Left atrial enlargement Right atrial enlargement References reflist Heart diseases Category Cardiomegaly cardiology stub ... more details
wiktionarypar monomorphic Monomorphic may refer to A form of QRS complex seen on an ECG Monomorphism , an injective homomorphism in mathematics See also Polymorphism disambiguation disambig ... more details
A intraventricular block is a heart block of the ventricles of the heart. An example is a right bundle branch block . ref name urlLesson VI ECG Conduction Abnormalities cite web url http library.med.utah.edu kw ecg ecg outline Lesson6 index.html IV block title Lesson VI ECG Conduction Abnormalities format work accessdate 2009 01 07 ref References reflist Further reading cite journal author Stock RJ title Clinical significance of intraventricular block in acute myocardial infarction journal Bull N Y Acad Med volume 47 issue 8 pages 987 98 year 1971 month August pmid 5284231 pmc 1750154 doi url Heart diseases Category Cardiac dysrhythmia medicine stub ... more details
Merge Ballistocardiography date July 2009 Ballistocardiograph or BCG detects and measures recoil of the human body due to the momentum of the blood that the heart is currently pumping. Ballistocardiography is a technique for producing a graphical representation of repetitive motions of the human body arising from the sudden ejection of blood into the great vessels of each heart beat. ref cite journal title Ballistocardiography, a bibliography year 1965 issue NASA Technical Reports Server pages 49 url http ntrs.nasa.gov archive nasa casi.ntrs.nasa.gov 19650025919 1965025919.pdf accessdate 7 September 2011 ref To be more specific a BCG measures the impact of blood colliding with aorta aortic arch, which causes the body to have an upward thrust , then the downward thrust of the blood descending. One Example of the use of a BCG is a ballistocardiographic scale, which measures the recoil of the persons body who is on the scale. A BCG scale is able to show a persons heart rate as well as their weight. The term ballistocardiograph originated from the Roman ballista , which is derived from the Greek language Greek word ballein to throw , a machine for launching missiles, plus the Greek word for heart and writing. See also Advanced cardiac life support ACLS Cardiac arrest Cardiac cycle EKG tech Cardiac monitoring Heart rate monitor Holter monitor SCP ECG References reflist http www.nihonkohden.com company history history1950s.html Half a century of contributing to medical care and society James S. Walker, 2002, Physics , Prentice Hall, p. 243 244 http www.time.com time magazine article 0,9171,897754,00.html Measuring the Heart s Kick External links http circ.ahajournals.org cgi reprint 23 5 714.pdf Twenty Year Studies with the Ballistocardiograph Category Medical testing equipment ... more details
PQRST may refer to The PQRST method, a PQRST study skill method of studying OPQRST , a mnemonic initialism used by persons performing first aid, omitting O for Onset of the event The part of the Alphabet song One complete heartbeat in the ECG . The different parts of the ECG are named The P wave, which describes the atrial contraction The QRS complex, which describes the ventricular contraction The T wave, which describes the ventricular decontraction. disambig Category Initialisms ... more details
Image RtALarge09.JPG thumb widthpx Right atrial enlargement. Note P wave height is 3 mm. Right atrial enlargement is a form of cardiomegaly . It is characterized by a P wave electrocardiography P wave height greater than 2.5 mm. ref http library.med.utah.edu kw ecg ecg outline Lesson7 index.html RAE ref References Reflist Heart diseases Category Cardiomegaly Medicine stub ... more details
electrodes on the patient s chest and attach them to a portable ECG monitor, that the patient carries ... material from the ECG monitor for interpretation. This is usually a tape device. The technician also ... ECG s prevent medical error by PGY house officers in the emergency department setting. ref cite journal ... and four year training programs to learn advanced ECG technical skills are available at junior colleges ... more details
Infobox disease Name Sinoatrial block Image Caption DiseasesDB ICD10 ICD10 I 45 5 i 30 ICD9 ICD9 426.6 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D012848 A sinoatrial block is a disease which involves an impairment of conduction at the sinoatrial node . An absent P wave electrocardiography on an ECG can indicate sinoatrial block. ref Longmore M et al. Oxford Handbook of Clinical Medicine. 7th edition. Oxford. OUP. 2007 ref It is possible to use the Wenckebach distinction to identifying increasing delays, as is done with second degree AV block . ref name urlLesson VI ECG Conduction Abnormalities Cite web url http library.med.utah.edu kw ecg ecg outline Lesson6 index.html SA block title Lesson VI ECG Conduction Abnormalities format work accessdate 2009 01 07 ref References Reflist External links Cite journal author Davy JM, Messner Pellenc P, Leclercq F title Electrocardiographic aspects of sinoatrial block language French journal Archives des maladies du coeur et des vaisseaux volume 87 issue 1 Spec No pages 41 6 year 1994 pmid 7524461 doi Circulatory system pathology Heart DEFAULTSORT Sinoatrial block Category Cardiac dysrhythmia Category Medical emergencies Disease stub cs Sinoatri ln blok da de SA Block fr Bloc sino auriculaire ... more details
Multiple issues context June 2008 notability June 2008 refimprove June 2008 orphan September 2008 Esperanza Coffee Group ECG was established in 1964 by Enrique Mejia and his family in Matagalpa , Nicaragua Central America as a green coffee wholesaler . Enrique Mejia established ECG s mill where until today coffee is sourced, milled, hand sorted and marketed. ECG specializes in Specialty Coffee http www.scaa.org what is specialty coffee.asp and Organic Coffee which are all Fair Trade http www.transfairusa.org content certification licensees.php?category coffeeI certified. Esperanza Coffee s Arabica Beans are the best quality, since they grow in high altitudes where only premium beans are cultivated. In 1996, after Enrique Mejia s death, the company was handed down to the management of his sons and daughters. New Beginning Soon after their father s death, the Mejia family faced a great challenge ECG. They knew that that their father had dug the road to success, but it was up to them to pave it and walk it. After an extensive evaluation, restoration, and projection, the Mejia s determined that they would continue their father s legacy and make of ECG a great and honorable company. As this new walk began, ECG began to change and develop in to a fresh new company with new goals, ideas, and realizations. Today, ECG is a well known company that provides coffee to companies big and small in Nicaragua, United States, and the world. Awards What is the Cup of Excellence Award ref The Cup of Excellence is a strict competition that selects the very best coffee produced in that country for that particular year . These winning coffees are chosen by a select group of national and international cuppers and are cupped at least five different times during the competition process. The final winners are awarded the prestigious Cup of Excellence and sold to the highest bidder during an internet auction. from the Cup of Excellence website http www.cupofexcellence.org WhatisCOE tabid 184 D ... more details
Image SinusRhythmLabels.svg right thumb Schematic representation of normal ECG In electrocardiography , during normal atrial depolarization, the main electrical vector is directed from the SA node towards the AV node , and spreads from the right atrium anatomy atrium to the left atrium anatomy atrium . This turns into the P wave on the ECG. The P wave is upright in II, III, and aVF since the general electrical activity is going toward the positive electrode in those leads , and inverted in aVR since it is going away from the positive electrode for that lead . A P wave must be upright in leads II and aVF and inverted in lead aVR to designate a cardiac rhythm as sinus rhythm . Clinical significance of abnormalities File ECG in hyperkalemia.png thumb 150px Electrocardiography showing precordial lead s in hyperkalemia , with small or indiscernible P waves. Absence Absence of the P wave may indicate Atrial fibrillation ref name Lungmore2004 cite book last Lungmore first Murray title Oxford Handbook of Clinical Medicine 8th edition year 2004 publisher Oxford University Press isbn 0198525583 ref Sinoatrial block ref name Lungmore2004 Junctional rhythm ref name Lungmore2004 Amplitude Peaked p waves indicate right atrial hypertrophy P pulmonale ref name Lungmore2004 . A P wave with increased amplitude can indicate hypokalemia . ref http www.uhmc.sunysb.edu internalmed nephro webpages Part D.htm ref It can also indicate right atrial enlargement . ref http library.med.utah.edu kw ecgecg outline Lesson7 index.html ref A P wave with decreased amplitude can indicate hyperkalemia . Morphology Bifid p waves indicate left atrial hypertrophy P mitrale ref name Lungmore2004 , while a saw tooth formed P wave may indicate atrial flutter . If P waves are not clearly delineated in the surface ECG, Lewis lead may be used to better visualize P waves. References reflist Cardiovascular physiology Category Cardiac electrophysiology Link GA pl pl Za amek P ... more details
Refimprove date July 2008 Secure Copy or SCP is a means of securely transferring computer file s between ... Shell SSH protocol. The term SCP can refer to one of two related things, the SCP protocol or the SCP program . SCP protocol The SCP protocol is a network protocol , based on the BSD rcp Unix RCP .... SCP uses Secure Shell SSH for data transfer and utilizes the same mechanisms for authentication ... permissions, timestamps . Clients can also request files or directories from a server download . SCP ... an SCP process to be started on the remote server. The remote SCP process can operate in one of two ... SCP clients, source mode is generally triggered with the f flag from , while sink mode is triggered with t to ref name Pechanec cite web last Pechanec first Jan title How the SCP protocol works url http blogs.oracle.com janp entry how the scp protocol works work Jan Pechanec s weblog publisher Oracle accessdate 27 July 2011 author Jan Pechanec authorlink How the SCP protocol works ref . These flags are used internally and are not documented outside the SCP source code. Remote to remote mode In remote to remote secure copy, the SCP client opens an SSH connection to the source host and requests that it, in turn, open an SCP connection to the destination. Remote to remote mode does not operate by opening two SCP connections and using the originating client as an intermediary . It is important to note that SCP cannot be used to remotely copy from the source to the destination when operating ... methods that do not require user input ref name Pechanec . SCP program The SCP program is a software tool implementing the SCP protocol as a service daemon or client. It is a program to perform secure copying. The SCP server program is typically the same program as the SCP client. Perhaps the most widely used SCP program is the command line tt scp tt program, which is provided in most SSH implementations. The tt scp tt program is the secure analog of the tt rcp tt command. The tt scp tt program ... more details
Infobox Disease Name Bifascicular block Image RBBB with first degree AV block.jpg Caption Right bundle branch block with first degree AV block . DiseasesDB ICD10 ICD10 I 45 2 i 30 ICD9 ICD9 426.53 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID Bifascicular block is a conduction abnormality in the heart where two of the three main wikt fascicle fascicle s of the Electrical conduction system of the heart His Purkinje system are blocked. Most commonly, it refers to a combination of right bundle branch block RBBB and either left anterior fascicular block LAFB or left posterior fascicular block LPFB , with the former being more common. ref name urlLesson VI ECG Conduction Abnormalities cite web url http library.med.utah.edu kw ecg ecg outline Lesson6 index.html bifasc title Lesson VI ECG Conduction Abnormalities format work accessdate 2009 01 07 ref Some authors consider left bundle branch block LBBB to be a technical bifascicular block, since the block occurs above the wikt bifurcation bifurcation of the left anterior and left posterior fascicles of the left bundle branch. Treatment In those with bifasciular block and no symptoms little with respect to treatment is needed. In those with syncope a pacemaker is recommended. Image gallery Image Bifascicular block ECG.png Bifascicular block on an electrocardiogram . gallery References reflist External links GPnotebook 1584070658 Circulatory system pathology Category Cardiac dysrhythmia disease stub ... more details
Orphan date February 2009 BodyKom is a mobile heart monitoring service that enable care personnel to receive the ECG of heart patients via the mobile network. The patients can be mobile and perform their everyday activities yet remain under observation. The caregiver receives diagnosis data immediately when the patient s heart starts acting abnormally. Through a backend system the clinician can set patient individual limits to support finding the abnormal heart functionality for the patient. Measures can be initiated automatically, for example by notifying the clinician and informing relatives. The use of BodyKom does not require any change in the care routines at the hospital, other than the patient getting a new type of patient kit which includes ECG electrode s, a small portable sensor and a smart cell phone. Monitoring data is collected by the sensor and is wirelessly transferred to the cell phone. The ECG data is then transferred via the mobile network to a decision support system for adjustment and then forwarded to the caregivers system for analysis. From a medical and technical point of view the patient is connected in the same way as with conventional ECG methods, like using a Holter monitor . BodyKom was developed by Kiwok in cooperation with Karolinska University Hospital in Sweden. External links cite web url http www.usatoday.com tech news 2005 03 30 wireless monitoring x.htm publisher USA Today date 2005 03 30 accessdate 2008 11 14 title Wireless device can monitor patients Category Medical equipment medical equipment stub ... more details
Context date June 2009 HL7 aECG , the HL7 Annotated Electrocardiogram , is a medical record data format for storing retrieving electrocardiogram data for a patient. Like other HL7 formats, it is XML based. The HL7 aECG standard was created in response to the Food and Drug Administration s digital electrocardiogram initiative which was introduced November, 2001. ref http www.fda.gov CDER regulatory ersr default.htm ECG FDA electronic ECG requirement ref The FDA initiative required ECG waveforms and annotations submitted to the FDA to have a standard format for the data. At the time, no current ECG waveform standards met all the FDA s needs. As a result, the FDA, sponsors, core laboratories, and device manufactures worked together within HL7 to create a standard to meet the FDA requirements. The aECG standard was created by HL7 s Regulated Clinical Research Information Management RCRIM . It passed final balloting in January, 2004, and was accepted by ANSI May, 2004. ref http www.amps llc.com technical documents.htm ref External links http www.amps llc.com website documents UsefulDocs aECG Implementation Guide.pdf aECG implementation Guide PDF References references DEFAULTSORT Hl7 Aecg Category Cardiology compu storage stub standard stub ... more details
File ECG demonstrating hyperkalemia with absent P waves.png thumb ECG demonstrating sinoventricular conduction due to hyperkalemia Sinoventricular conduction is a rare form of Electrical conduction system of the heart cardiac conduction in which the sinoatrial node generates an impulse that is conducted to the atrioventricular node AV node in the absence of atrial contraction. This is the physiological proof for the presence of the internodal tracts, which have not been clearly demonstrated histologically. On electrocardiogram ECG , there will be no P wave due to the inactivation of the atrial muscles. ref cite journal last1 Ross first1 AM last2 Proper first2 MC year 1976 title Sinoventricular conduction in atrial standstill journal Journal of Electrocardiology volume 9 pages 161 4 ref Hyperkalemia can lead to sinoventricular conduction, as evidenced on electrocardiography ECG by the P waves becoming flatter and flatter and eventually disappearing. The impulse from the sinus node is still conducted via the internodal tracts to the AV node, and thus normal ventricular activation occurs. Sinoventricular conduction has also been demonstrated during acute myocardial ischemia. This has been further elucidated by the absence of P waves in any surface leads despite effective high right atrial pacing. ref cite journal last1 Luca first1 C year 1979 title Acta Cardiol volume 34 issue 6 pages 431 6 ref References Reflist Category Cardiac electrophysiology ... more details
Encyclopedia
top
