Complete pacemaker failure following lightning strike injury: A case report.

INTRODUCTION: Modern cardiovascular implantable electronic devices (CIEDs) have mechanisms that prevent damage from external electric shocks, and malfunction following accidental electrocution is rare. However, the effects of lightning injuries in patients with CIEDs are uncertain. CASE PRESENTATION: A 74-year-old man with a dual-chamber pacemaker due to complete heart block was struck by a lightning while farming. He had no serious injury at the time and sought medical evaluation 1 month later, when he presented with asymptomatic bradycardia. Device interrogation suggested major battery and lead damage, requiring extraction and subsequent placement of a new pacing system. DISCUSSION: While a previous report depicted pacing threshold elevation without extensive device impairment, our patient presented with major damage to the whole pacing system. The factors contributing to these divergent outcomes are unclear. Differences in injury mechanism, pacemaker model, and the pattern of electric current dispersion within the device may each play a part in this discrepancy.

Lightning patterns in the Pantanal: Untangling natural and anthropogenic-induced wildfires.

The identification of fire causes and characteristics is of fundamental importance to better understand fire regimes and drivers. Particularly for Brazil, there is a gap in the quantification of lightning-caused fires. Accordingly, this work is a novel probabilistic assessment of the spatial-temporal patterns of lightning-ignited wildfires in the Pantanal wetland. Here, remote sensing information such as VIIRS active fires, MODIS burned area (BA) and STARNET lightning observations from 2012 to 2017, were combined to estimate the location, number of scars and amount of BA associated with atmospheric discharges on a seasonal basis. The highest lightning activity occurs during summer (December-February), and the lowest during winter (June-August). Conversely, the highest fire activity occurred during spring (September-November) and the lowest during autumn (March-May). Our analysis revealed low evidence of an association between fires and lightning, suggesting that human-related activities are the main source of ignitions. Weak evidence of natural-caused fire occurrence is conveyed by the low spatial-temporal match of lightning and fire throughout the studied period. Natural-caused fires accounted for only 5% of the annual total scars and 83.8% of the BA was human-caused. Most of the fires with extension larger than 1000 ha were not related to lighting. Lightning-fires seem an important element of the summer fire regime given that around half of the total BA during this season may be originated by lightning. By contrast, in the rest of the year the lightning-fires represent a minor percentage of the fire activity in the region. The density of lightning-ignited fires varies considerably, being higher in the north part of the Pantanal. This work provides a basis for a better understanding of lightning-related fire outbreaks in tropical ecosystems, particularly wetlands, which is fundamental to improve region-based strategies for land management actions, ecological studies and modeling climatic and anthropogenic drivers of wildfires.

Local Atmospheric Electric Circuit Model Using Electrostatic Pickups on a 375kV Transmission Line

Abstract: The global atmospheric electric circuit is based on a model of electrical connection between the earth and the ionosphere (waveguide), capable of representing the flow of electric current in this waveguide. In the proposed model, a storm acts as a generator, allowing the ionosphere to maintain its highest electrical potential (approximately 300kV) in relation to Earth. When a storm forms, the bottom of the cloud becomes negatively charged. This study is focused on modeling this specific part of the global atmospheric electric circuit, which is renamed local atmospheric electric circuit. In the methodology, we use an RLC circuit to calculate the effects of electrified clouds in a 375kV transmission line considering an electrical coupling between them (an RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and to capacitor (C). The mathematical formulation was developed using transmission line theory considering a connection with the top of the storm cloud. Then, a model simulation using GNU Octave was performed, and the results demonstrated how this coupling affects voltage drop and phase shift in a 375kV transmission line. Thus, a local atmospheric electric circuit model, considering the particularities of the environment immersed in a real transmission line model, configures an important model in the perspective of project management of electric energy transmission networks.

Bilateral maculopathy and cataracts secondary to an accidental high-voltage electrical discharge.

The aim of the study was to describe the ocular findings following an accidental high-voltage electrical discharge. A 32-year-old male suffered an accidental electric discharge of 10,000 volts of direct current. He developed cortical, nuclear, and posterior subcapsular opacities in both the eyes. The retinal examination showed bilateral macular cysts. Four months after the event, the macular cyst in the OD spontaneously regressed without visual improvement. The macular cyst in the OS remained unchanged. High-voltage electrical discharge can lead to bilateral maculopathy and cataracts. The visual prognosis is reserved. The visual acuity may not improve despite macular cyst regression.

An Autopsy Series: Lightning-related Deaths in Van and Hakkâri Provinces, Turkey

ABSTRACT Objective: To report the largest series of lightning-related deaths in Turkey, to review the literature on this subject, and to identify similarities and differences between the autopsy findings in this study and the information available in literature. Methods: In this study, autopsy reports and crime scene investigation data on 11 lightning-related fatalities that occurred in the Van and Hakkâri Provinces, Turkey, from January 1, 2011 to December 31, 2015 were retrospectively reviewed. Results: Of the 1699 fatalities, 11 (2.53%) evaluated by medico-legal autopsy in the Van and Hakkâri Province in a 5-year period died from lightning strikes. Of these cases, 10 (90.1%) were males and 1 (9.9%) was female (p < 0.05). All cases were in the 11 to 33 years age group. All cases were injured outdoors. Conclusion: We concluded that deaths due to lightning strikes are relatively rare in Turkey, and may be reduced with precautions such as avoiding staying under trees or in the vicinity of high towers, refraining from touching metal objects, avoiding lying on the ground, leaning on walls, and crouching outdoors.

TrackingStorm: Visualization Tool for a Storm Detector Network (SDN) in the LF Spectrum

Abstract During the last year the Group of Atmospheric Electricity Phenomena (FEA/UFPR) developed a short range lightning location network based on a sensor device called Storm Detector Network (SDN), along with a set of algorithms that enables to track storms, determining the Wide Area Probability (WAP) of lightning occurrence, risk level of lightning and Density Extension of the Flashes (DEF), using the geo-located lightning information as input data. These algorithms compose a Dashboard called Tracking Storm Interface (TSI), which is the visualization tool for an experimental short range Storm Detector network prototype in use on the region of Curitiba-Paraná, Brazil. The algorithms make use of Geopandas and clustering algorithms to locate storms, estimate centroids, determine dynamic storm displacement and compute parameters of thunderstorms like velocity, head edge of electrified cloud, Mean Stroke Rate, and tracking information, which are important parameters to improve the alert system which is subject of this research. To validate these algorithms we made use of a simple storm simulation, which enabled to test the system with huge amounts of data. We found that, for long duration storms, the tracking results, velocity and directions of the storms are coherent with the values of simulation and can be used to improve an alert system for the Storm Detector network. WAP can reach at least 75% of prediction efficiency when used 6 past WAP data, but can reach 98.86% efficiency when more data is available. We use storm dynamics to make improved alert predictions, reaching an efficiency of ~87%.

Projects for predictive maintenance and operation between Copet G&T and Gnarus Institute

Abstract The continuity of an electrical system's services is linked to its equipment's correct operation. The more correctly they worked, the higher the quality of the services provided. Thus, they must have their functioning scanned closely and that minor defects have their evolution monitored. This fact creates the possibility of making predictions about how long equipment can operate without compromising the system's continuity. This follow-up is proper for predictive maintenance. This paper presents three on-going COPEL Generation and Transmission projects in essential elements of its electrical system: circuit breakers, lightning arresters, and SF6 substation. The central idea of all monitoring projects is to check the early problem in this equipment and facilities.

Lightning during the COVID-19 pandemic in Brazil.

This study is concerned with the effects of a decrease in the air pollution concentration on the lightning characteristics of two large Brazilian cities. The decrease in air pollution happened from March 20, till April 02, 2020, and it was caused by the social distancing effort to contain the COVID-19 spread in the cities. In São Paulo, the ratio between cloud-to-ground to intracloud flashes and the average peak current of negative cloud-to-ground flashes significantly decreased; whereas in Belo Horizonte, the ratio between positive and negative cloud-to-ground flashes significantly increased with respect to the values in previous years.

Lightning is a major cause of large tree mortality in a lowland neotropical forest.

The mortality rates of large trees are critical to determining carbon stocks in tropical forests, but the mechanisms of tropical tree mortality remain poorly understood. Lightning strikes thousands of tropical trees every day, but is commonly assumed to be a minor agent of tree mortality in most tropical forests. We use the first systematic quantification of lightning-caused mortality to show that lightning is a major cause of death for the largest trees in an old-growth lowland forest in Panama. A novel lightning strike location system together with field surveys of strike sites revealed that, on average, each strike directly kills 3.5 trees (> 10 cm diameter) and damages 11.4 more. Given lightning frequency data from the Earth Networks Total Lightning Network and historical total tree mortality rates for this site, we conclude that lightning accounts for 40.5% of the mortality of large trees (> 60 cm diameter) in the short term and probably contributes to an additional 9.0% of large tree deaths over the long term. Any changes in cloud-to-ground lightning frequency due to climatic change will alter tree mortality rates; projected 25-50% increases in lightning frequency would increase large tree mortality rates in this forest by 9-18%. The results of this study indicate that lightning plays a critical and previously underestimated role in tropical forest dynamics and carbon cycling.

Muerte materna incidental en un accidente por relámpago: Reporte de caso / Incidental maternal death due to lightning injury: a case report

Resumen Los relámpagos se presentan con una frecuencia mayor a 50 veces por segundo a nivel mundial; sin embargo, las descargas directas suceden rara vez y son responsables del 5% de los eventos fatales. El mecanismo de lesión inicial es la parálisis de los centros vitales, lo que ocasiona apnea, fibrilación auricular o paro cardíaco. En mujeres embarazadas, el accidente por rayo puede producir complicaciones graves, dependiendo del punto de entrada en el cuerpo y su efecto indirecto sobre el feto, produciendo trastornos de la conducción en el sistema cardíaco y daño a nivel del sistema nervioso central. En la literatura mundial, solo catorce casos de embarazo y traumatismo por relámpago han sido reportados, sobreviviendo en todos la madre, con un único reporte de muerte fetal. Se presenta un caso de accidente por relámpago en una mujer embarazada en la semana 23 de gestación, cuyo tipo de lesión fue por contacto directo en el abdomen, y quien ingresó con compromiso neurológico, taquicardia materna y bradicardia fetal. El deceso materno ocurrió por infarto agudo extenso del miocardio y la formación de un émbolo intracavitario en el ventrículo izquierdo, con la consecuente muerte del binomio. Se describe su frecuencia, el mecanismo de lesión, las manifestaciones clínicas y el manejo actual. MÉD.UIS.2019;32(1):21-6

Abstract Lightning occurs with a frequency rate of more than 50 times per second worldwide. Nevertheless, direct lightning strikes are not common, and they are responsible for about 5% of all lightning injury fatalities. The initial mechanism of injury is the paralysis of the vital centers, which causes apnea, atrial fibrillation and cardiac arrest. In pregnant women, lightning can produce severe complications which depend on the point of entrance and its indirect effect on the fetus, affecting the cardiac conduction system and the central nervous system. We report a case of a lightning accident by direct strike on a 23-week pregnant woman, who's type of injury was by direct contact on the abdomen. She arrives to the emergency room with neurologic symptoms, maternal tachycardia and fetal bradycardia. The mother died due to myocardial infarction and the presence of an intracavitary embolus in the left ventricle, with the consequent maternal-fetal death. The incidence and injury mechanisms, as well as the clinical features and clinical management are described. MÉD.UIS.2019;32(1):21-6.

Discusión sobre la necesidad de delimitación de una nueva nosografía psiquiátrica y psicológica. síndrome del accidentado por rayo eléctrico / Discussion on the delimitation of a nosography new psychiatric and psychological need. syndrome of the accident by electric ray

La observación y análisis de las variadas manifestaciones clínicas y secuelas que presentan las víctimas sobrevivientes de accidente por rayo, nos proporciona la posibilidad de cambiar el punto de vista desde el cual consideramos y estudiamos las mismas. Debemos evaluar la conveniencia de considerar tales manifestaciones meramente como un conjunto de signos y síntomas inespecíficos o pertenecientes a múltiples síndromes ya tipificados; o bien, abrir una nueva y profunda discusión en torno a la posibilidad de su agrupación y delimitación de una nueva categoría nosográfica psiquiátrica y psicológica. La metodología de la presente investigación se basa en el análisis de gran parte de la casuística extranjera de estos pacientes y la investigación bibliográfica exhaustiva sobre las escasas publicaciones científicas existentes. Asimismo, se revisan distintos procedimientos habituales en el ingreso de estos pacientes a los centros de salud que dificultan el estudio epidemiológico y sanitario de los mismos.

The observation and analysis of the varied clinical manifestations and sequels surviving accident victims presented by ray, gives us the possibility to change the point of view from which we consider and study them. We must assess the appropriateness of considering such manifestations merely as a set of signs and symptoms nonspecific, or belonging to multiple syndromes already described; Alternatively, open a new and profound discussion about the possibility of their grouping and delimitation of a new category of psychiatric and psychological nosographic. The methodology of this research is based on the analysis of much of the world Casuistry of these patients and the comprehensive bibliographic research on the scarce existing scientific publications. Also reviewed various common procedures in income of these patients to health centers, hindering the health and epidemiological study of them.

Lesiones por fulguración aspectos clínicos y médicos legales. Presentación de dos casos simultáneos no mortales / Fulguration injuries: clinical and legal aspects. Presentation of two simultaneous non-fatal cases

Resumen Un relámpago o rayo es definido como una gran descarga de corriente eléctrica atmosférica, momentánea y transitoria cuya longitud de trayectoria se mide en kilómetros. Por otro lado, se denomina fulguración a los efectos biológicos gue se producen por acción de la electricidad atmosférica. Se presentan dos casos de mujeres gue sufrieron simultáneamente los efectos de un rayo y sobrevivieron, y en quienes se apreciaron las figuras de Lichtenberg, gue son patognomónicas en la fulguración. Así mismo, se hace hincapié en las demás lesiones externas por fulguración, las cuales ayudan a la evaluación médico-legal.

Abstract Lightning is defined as an electrical discharge in the atmosphere that is momentary and transitory which length is measured in kilometers. On the other hand, fulguration is related the biological effects produced by the atmospheric electricity. In this report, two simultaneous cases of lightning strikes are presented. The individuals survived and the pathognomonic Lichtenberg's figures were presented. Special emphasis is placed in the external lesions by the struck of lightning in order to help the legal-medical evaluation.

Neurologic complications of acute environmental injuries.

Environmental injuries can result in serious neurologic morbidity. This chapter reviews neurologic complications of thermal burns, smoke inhalation, lightning strikes, electric injury, near drowning, decompression illness, as well as heat stroke and accidental hypothermia. Knowing the pathophysiology and clinical presentation of such injuries is essential to proper management of primary and secondary medical complications. This chapter highlights the most frequently encountered neurologic injuries secondary to common environmental hazards, divided into the topics: injuries related to fire, electricity, water, and the extremes of temperature.

Muerte por fulguración / Death by lightning

En el Servicio Provincial de Medicina Legal de Villa Clara, se realizó un estudio descriptivo, longitudinal, retrospectivo, de los fallecidos por fulguración entre el 1ro. de enero de 2009 y el 31 de diciembre de 2014, para determinar sexo, edad y ocupación de los afectados, zona y época del año de mayor ocurrencia, así como las lesiones externas más frecuentes. En el libro de registro y las actas de necropsias, se encontraron 16 fallecidos por esta causa. Predominó el sexo masculino, en la edad laboral; septiembre, mayo y junio fueron los meses de mayor incidencia. Todos los hechos ocurrieron en la zona rural, y el 62,5 %, a la intemperie. La zona noroeste de la provincia resultó la más afectada y las lesiones más frecuentes fueron las quemaduras. Aunque el número de fulguraciones no parece alto, es el fenómeno natural que provoca más muertes en Cuba.

A retrospective, longitudinal and descriptive study of deceased people due to lightning was carried out from January 1st, 2009 to December 31st, 2014 in order to determine gender, age and occupation of the affected individuals, location and time of the year of higher occurrence, as well as, the most frequent external lesions. Sixteen deaths due to this cause were registered in the logbook and in the autopsy reports. Working-age men predominated; the months with the highest incidence were September, May and June. All the incidents happened in rural area, and the 62.5 % was in the outdoors. Northwest region of the province turned out to be the most affected one and burns were the most frequent lesions. Although the number of deaths by lightning doesn't seem to be very high, this is the natural phenomenon that causes more deaths in Cuba.

Trauma Eléctrico / Electrical trauma

El trauma eléctrico puede ocurrir por contacto con un cable eléctricamente activo o con un rayo, clasificándose elmismo en lesiones por bajo voltaje para aquellas de menos de 1000V y lesiones por alto voltaje para aquellas demás de 1000V. Posee una incidencia poco despreciable siendo una causa frecuente de lesión por un fenómenonatural. Diferentes factores entre ellos el tipo de corriente, la resistencia de los tejidos, la duración del contacto,el voltaje, y los factores ambientales definen la gravedad y extensión de las lesiones que produce. Los tejidosafectados con mayor frecuencia son los nervios, vasos, hueso, músculo y piel siendo prevalentes las quemaduras,arritmias, parestesias y otros daños a los sistemas nervioso y cardiovascular. A pesar de tener una mortalidadbaja, la lesión difusa causada por el trauma eléctrico deriva en una importante cantidad de secuelas a cortoy largo plazo que se presenta en un alto porcentaje de los sobrevivientes y que, debido a su sintomatologíainespecífica podría resultar difícil de identificar y diagnosticar.

Electric trauma can occur by contact with an active electric wire or a lightning, being classified in low-voltage injuriesfor those under 1000V and high- voltage injuries for those over 1000V. It has a little despicable incidence beinga frequent cause of injury from a natural phenomenon. Different factors including the type of current, resistanceof the tissues, duration of contact, voltage, and environmental factors determine the severity and extent of theinjuries that it produces. The tissues most commonly affected are the nerves, vessels, bones, muscle and skin beingprevalent the burns, arrhythmias, paresthesia, and other damages to the nervous and cardiovascular systems.Despite having a low mortality, diffuse injury caused by electric trauma results in an important amount of short andlong-term sequelae that occurs in a high percentage of the survivors, and because of its non-specific symptoms maybe difficult to identify and diagnose.

Fisiopatología, manifestaciones sistémicas y secuelas de la fulguración en seres humanos / Pathophysiology systemic manifestations and sequelae of electrocution in humans

Un rayo es un impulso masivo de corriente unidireccional creado por un gradiente de electrones entre dos nubes o una nube y la tierra. El trauma eléctrico por lo general no es mortal, sin embargo se asocia a una serie de complicaciones médicas de importancia. Las secuelas están determinadas tanto por la intensidad de la corriente como por la duración de la aplicación energética. Las lesiones por electrofulguración ocurren por distintos mecanismos: golpe directo, lesión de contacto, “side splash”, corriente por tierra y trauma contuso. La electricidad atmosférica causa diferentes tipos de lesiones a nivel de la piel, como es el caso de las quemaduras lineales, punteadas, térmicas y en plumaje. Las figuras de Lichtenberg son patognomónicas de la electrofulguración. Además del efecto sobre el sistema tegumentario, se documentan lesiones cardiovasculares, respiratorias, gastrointestinales, oculares, auditivas y neurológicas. Cuando se presenta una muerte por electrofulguración, como pocas veces es presenciada y ocurre en espacios abiertos, se debe realizar un estudio exhaustivo del cadáver y del lugar del suceso para descartar otras causas de muerte natural o violenta. En Costa Rica en el año 2011 se presentaron 7 muertes por electrofulguración, principalmente durante la juventud y adultez temprana y a nivel de la zona rural, siendo el principal mecanismo de lesión el golpe directo.

Lightning is a massive unidirectional current that depends of an electron gradient; this electric flow travels from one cloud to another or to the ground. Electric trauma generally is not lethal, however, it is associated to several complications. Sequelae are determined both by the current strength and by the duration of the exposure. Lightning damage occurs by different mechanisms: direct strike, contact injury, side splash, ground current, and blunt trauma. Atmospheric electricity causes different skin lesions such as linear, punctate, thermal, and plumage burns. Lichtenberg figures are pathognomonic for lightning. Besides the effect on the integumentary system, respiratory, gastrointestinal, ocular, auditory, cardiovascular, and neurological injuries are documented as well. When lightning causes death, it usually happens in open places without witnesses. An exhaustive study of the cadaver and the setting of the event should be accomplished in order to exclude natural or violent causes of death. In Costa Rica in 2011, there were seven deaths related to lightning; young adults predominated and most took place in rural areas, being direct strike the main mechanism of damage.

Lightning deaths: a retrospective review of New Mexico's cases, 1977-2009.

To better understand lightning deaths, a retrospective review of electronic records from New Mexico's Office of the Medical Investigator database was performed between 1977 and 2009 to update and assess current risk factors. Information on demographics, circumstances, autopsy, and death certificates were collected and analyzed. Fifty-four decedents were identified, ages 2-71 years old (mean 34 years old), 42 males and 12 females. Common racial/ethnic groups were non-Hispanic Whites and American Indians (together comprising 72% of all cases). Physical findings were often related to the heat carried by the electrical current including clothing alterations (29.6%) and burning of skin (53.7%). Most deaths occurred on weekend afternoons in summer months, associated with recreational activities or agricultural work, and rural locations (77.8%). Utilizing the demographic information, clustered events, and associated outdoor activities will assist in creating public awareness and provide a framework to support targeted warnings in an attempt to prevent future deaths.

Quemadura por rayo / Lightning burn

Fundamento: las quemaduras eléctricas producidas por fenómenos atmosféricos probablemente fueron las primeras y tiene una alta mortalidad. Objetivo: describir el cuadro clínico de un paciente que presentó una descarga eléctrica natural y sobrevivió al evento. Caso clínico: paciente de 37 años de edad, masculino, sin antecedentes patológicos, fue alcanzado por un rayo que conllevó a la pérdida de conciencia por varios minutos, así como quemaduras en cara, zonas del tronco anterior y posterior y miembro superior derecho que se diagnosticaron como lesiones dérmicas A de un 22 % de superficie corporal quemada, con pérdida de conciencia momentánea y complicación renal y oftalmológica posteriormente, sobrevivió al evento inicial. Conclusiones: las quemaduras por electricidad natural o fulguraciones constituyen un evento dramático con graves complicaciones y alta mortalidad.

Background: electric burns produced by atmospheric phenomena were probably the first type of burn and have a high mortality. Objective: to describe the clinical manifestations of a patient who got a natural discharge and survived. Clinical case: a thirty-seven-year-old male patient without pathological records was struck by a lightning that caused the loss of consciousness for some minutes, as well as burns of the face, the torso, the back, and the right fore limb that were diagnosed as A dermic lesions of a 22 % of the body burned. Subsequently, the patient presented momentary loss of consciousness, and ophthalmic and kidney complications. He survived the initial event. Conclusions: burns by natural electricity and fulgurations constitute a dramatic event with severe complications and a high mortality.

Lesões por choque elétrico e por raios / Injuries from electrical shock and lightning

JUSTIFICATIVA E OBJETIVOS: As lesões por choque elétrico e por raios representam pequena parcela das admissões nos serviços de urgência e emergência. No entanto, resultam em custo extremamente elevado para as vítimas e para a sociedade. Os índices de mortalidade são altos: cerca de 30% a 40% dos acidentes são fatais, com estimativas de aproximadamente 1.000 mortes por ano nos EUA. O objetivo deste estudo foi rever as definições, a fisiopatologia, as manifestações clínicas e as medidas terapêuticas ideais para a abordagem dos pacientes vítimas de choque elétrico e raios. CONTEÚDO: Artigos publicados entre 1969 e 2010 foram selecionados no banco de dados da Medline, através das palavras-chave: choque elétrico e lesões por raio. Adicionalmente, referências destes artigos, capítulos de livros e artigos históricos foram avaliados. CONCLUSÃO: As manifestações clínicas envolvidas variam de queimaduras superficiais a disfunção de múltiplos órgãos e morte. As complicações mais relatadas na literatura são: parada cardíaca ou respiratória, queimaduras, arritmias, traumatismos, ruptura de membrana timpânica e convulsões. O tratamento adequado minimiza as complicações da fase aguda e evita ou resolve algumas sequelas tardias como amputações, lesões neurológicas permanentes e o desenvolvimento de catarata.Os pacientes devem ser abordados de acordo com os protocolos do suporte de vida cardiológico avançado e do suporte avançado para o trauma. Reposição volêmica vigorosa, identificação e tratamento de síndrome compartimental, cuidados apropriados com queimaduras e profilaxia para tétano são as medidas mais importantes.

BACKGROUND AND OBJECTIVES: Injuries from electrical shock and lightning represent a small proportion of the number of admissions to emergency departments and emergency; however, result in an extremely high cost to society and to patients. Mortality rates are high, about 30% to 40% of accidents are fatal with an estimated 1,000 deaths per year in the U.S. The aim of this study was to review the concepts, the physiopathology, the clinical manifestations and therapeutic measures suitable for the treatment of victims of electric shockor lightning. CONTENTS: Articles published between 1969 and 2010 were selected in the MedLine database, using the keywords:electric shock, injury from lightning, electrical discharge. References of these articles, chapters of books and historical articleswere evaluated. CONCLUSION: The clinical manifestations range from superficial burns to multiple organ failure and death. The complications are commonly reported as cardiac arrest or respiratoryfailure, burns, arrhythmias, trauma, ruptured eardrum, and seizures. Proper treatment minimizes the initial effects and also prevents and resolves some late sequelae such as amputations, permanent neurological damage and the development of cataracts. Patients should be dealt with according to the protocols of advanced cardiac life support and advanced trauma life support. Vigorous fluid replacement, identification and treatment of compartment syndrome, appropriate care with burns and tetanus prophylaxis are the most important.

Fulguração como causa de morte em bovinos no Estado do Rio Grande do Sul / Lightning strike as a cause of death in cattle in Rio Grande do Sul

Fulguração é a morte de animais pela ação de correntes elétricas atmosféricas ou raios durante tempestades. Quatro bovinos provenientes de dois rebanhos foram encontrados mortos nas proximidades de árvores de Eucalyptus sp. imediatamente após registros de tempestades no Estado do Rio Grande do Sul. Nos locais haviam árvores com linhas de queimadura recente no tronco, cascas parcialmente soltas, além de restos de galhos e folhas espalhados sob as copas das árvores. Não foram encontradas lesões macroscópicas e microscópicas significativas, nem indícios de enfermidades tóxicas ou infecciosas. Tais achados sugerem morte súbita por fulguração nos bovinos.

Lightning strike may cause sporadic deaths of animals that have been exposed to high-voltage electric currents during thunderstorms. Four healthy adult cattle from two herds were found dead next to eucalypt trees immediately after storms in Rio Grande do Sul, Brazil. There were recent burns and loose barks on the trunks of the trees, apart numerous branches and leaves scattered on the ground under the canopy of the trees. No gross or microscopic lesions were observed. In addition, there was no evidence of any toxic or infectious disease. These findings suggest that lightning strike caused the death of those animals.