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Fulltext ECG-based prediction algorithm for imminent malignant ventricular arrhythmias using decision tree

Mandala S, Cai Di T, Sunar MS, Adiwijaya

PLoS One, 2020;15(5):e0231635.
PMID: 32407335 DOI: 10.1371/journal.pone.0231635

Spontaneous prediction of malignant ventricular arrhythmia (MVA) is useful to avoid delay in rescue operations. Recently, researchers have developed several algorithms to predict MVA using various features derived from electrocardiogram (ECG). However, there are several unresolved issues regarding MVA prediction such as the effect of number of ECG features on a prediction remaining unclear, possibility that an alert for occurring MVA may arrive very late and uncertainty in the performance of the algorithm predicting MVA minutes before onset. To overcome the aforementioned problems, this research conducts an in-depth study on the number and types of ECG features that are implemented in a decision tree classifier. In addition, this research also investigates an algorithm's execution time before the occurrence of MVA to minimize delays in warnings for MVA. Lastly, this research aims to study both the sensitivity and specificity of an algorithm to reveal the performance of MVA prediction algorithms from time to time. To strengthen the results of analysis, several classifiers such as support vector machine and naive Bayes are also examined for the purpose of comparison study. There are three phases required to achieve the objectives. The first phase is literature review on existing relevant studies. The second phase deals with design and development of four modules for predicting MVA. Rigorous experiments are performed in the feature selection and classification modules. The results show that eight ECG features with decision tree classifier achieved good prediction performance in terms of execution time and sensitivity. In addition, the results show that the highest percentage for sensitivity and specificity is 95% and 90% respectively, in the fourth 5-minute interval (15.1 minutes-20 minutes) that preceded the onset of an arrhythmia event. Such results imply that the fourth 5-minute interval would be the best time to perform prediction.

Matched MeSH terms: Electrocardiography/methods*
Fulltext An improved method to detect arrhythmia using ensemble learning-based model in multi lead electrocardiogram (ECG)

Mandala S, Rizal A, Adiwijaya, Nurmaini S, Suci Amini S, Almayda Sudarisman G, et al.

PLoS One, 2024;19(4):e0297551.
PMID: 38593145 DOI: 10.1371/journal.pone.0297551

Arrhythmia is a life-threatening cardiac condition characterized by irregular heart rhythm. Early and accurate detection is crucial for effective treatment. However, single-lead electrocardiogram (ECG) methods have limited sensitivity and specificity. This study propose an improved ensemble learning approach for arrhythmia detection using multi-lead ECG data. Proposed method, based on a boosting algorithm, namely Fine Tuned Boosting (FTBO) model detects multiple arrhythmia classes. For the feature extraction, introduce a new technique that utilizes a sliding window with a window size of 5 R-peaks. This study compared it with other models, including bagging and stacking, and assessed the impact of parameter tuning. Rigorous experiments on the MIT-BIH arrhythmia database focused on Premature Ventricular Contraction (PVC), Atrial Premature Contraction (PAC), and Atrial Fibrillation (AF) have been performed. The results showed that the proposed method achieved high sensitivity, specificity, and accuracy for all three classes of arrhythmia. It accurately detected Atrial Fibrillation (AF) with 100% sensitivity and specificity. For Premature Ventricular Contraction (PVC) detection, it achieved 99% sensitivity and specificity in both leads. Similarly, for Atrial Premature Contraction (PAC) detection, proposed method achieved almost 96% sensitivity and specificity in both leads. The proposed method shows great potential for early arrhythmia detection using multi-lead ECG data.

Matched MeSH terms: Electrocardiography/methods
On the feasibility of self-mixing interferometer sensing for detection of the surface electrocardiographic signal using a customized electro-optic phase modulator

Bakar AA, Lim YL, Wilson SJ, Fuentes M, Bertling K, Taimre T, et al.

Physiol Meas, 2013 Feb;34(2):281-9.
PMID: 23363933 DOI: 10.1088/0967-3334/34/2/281

Optical sensing offers an attractive option for detection of surface biopotentials in human subjects where electromagnetically noisy environments exist or safety requirements dictate a high degree of galvanic isolation. Such circumstances may be found in modern magnetic resonance imaging systems for example. The low signal amplitude and high source impedance of typical biopotentials have made optical transduction an uncommon sensing approach. We propose a solution consisting of an electro-optic phase modulator as a transducer, coupled to a vertical-cavity surface-emitting laser and the self-mixing signal detected via a photodiode. This configuration is physically evaluated with respect to synthesized surface electrocardiographic (EKG) signals of varying amplitudes and using differing optical feedback regimes. Optically detected EKG signals using strong optical feedback show the feasibility of this approach and indicate directions for optimization of the electro-optic transducer for improved signal-to-noise ratios. This may provide a new means of biopotential detection suited for environments characterized by harsh electromagnetic interference.

Matched MeSH terms: Electrocardiography/instrumentation*
Computer-aided diagnosis of congestive heart failure using ECG signals - A review

Jahmunah V, Oh SL, Wei JKE, Ciaccio EJ, Chua K, San TR, et al.

Phys Med, 2019 Jun;62:95-104.
PMID: 31153403 DOI: 10.1016/j.ejmp.2019.05.004

The heart muscle pumps blood to vital organs, which is indispensable for human life. Congestive heart failure (CHF) is characterized by the inability of the heart to pump blood adequately throughout the body without an increase in intracardiac pressure. The symptoms include lung and peripheral congestion, leading to breathing difficulty and swollen limbs, dizziness from reduced delivery of blood to the brain, as well as arrhythmia. Coronary artery disease, myocardial infarction, and medical co-morbidities such as kidney disease, diabetes, and high blood pressure all take a toll on the heart and can impair myocardial function. CHF prevalence is growing worldwide. It afflicts millions of people globally, and is a leading cause of death. Hence, proper diagnosis, monitoring and management are imperative. The importance of an objective CHF diagnostic tool cannot be overemphasized. Standard diagnostic tests for CHF include chest X-ray, magnetic resonance imaging (MRI), nuclear imaging, echocardiography, and invasive angiography. However, these methods are costly, time-consuming, and they can be operator-dependent. Electrocardiography (ECG) is inexpensive and widely accessible, but ECG changes are typically not specific for CHF diagnosis. A properly designed computer-aided detection (CAD) system for CHF, based on the ECG, would potentially reduce subjectivity and provide quantitative assessment for informed decision-making. Herein, we review existing CAD for automatic CHF diagnosis, and highlight the development of an ECG-based CAD diagnostic system that employs deep learning algorithms to automatically detect CHF.

Matched MeSH terms: Electrocardiography*
Fulltext Novel impedance measurement technique for soluble solid content determination of banana

Ibrahim, N.U.A., Abd Aziz, S., Nawi, N.M.

Pertanika Journal of Science & Technology, 2017;25(2):519-526.
MyJurnal

Soluble solid content (SSC) is one of the important traits that indicate the ripeness of banana fruits.
Determination of SSC for banana often requires destructive laboratory analysis on the fruit. An impedance measurement technique was investigated as a non-destructive approach for SSC determination of bananas. A pair of electrocardiogram (ECG) electrode connected to an impedance analyser board was used to measure the impedance value of bananas over the frequency of 19.5 to 20.5 KHz. The SSC measurement was conducted using a pocket refractometer and data was analysed to correlate SSC with impedance values. It was found that the mean of impedance, Z decreased from 10.01 to 99.93 KΩ at the frequency of 20 KHz, while the mean value of SSC increased from 0.58 to 4.93 % Brix from day 1 to day 8. The best correlation between impedance and SSC was found at 20 KHz, with the coefficient of determination, R2 of 0.87. This result indicates the potential of impedance measurement in predicting SSC of banana fruits.

Matched MeSH terms: Electrocardiography
Prolonged QT predicts prognosis in COVID-19

Akhtar Z, Gallagher MM, Yap YG, Leung LWM, Elbatran AI, Madden B, et al.

Pacing Clin Electrophysiol, 2021 05;44(5):875-882.
PMID: 33792080 DOI: 10.1111/pace.14232

BACKGROUND: Coronavirus disease-2019 (COVID-19) causes severe illness and multi-organ dysfunction. An abnormal electrocardiogram is associated with poor outcome, and QT prolongation during the illness has been linked to pharmacological effects. This study sought to investigate the effects of the COVID-19 illness on the corrected QT interval (QTc).
METHOD: For 293 consecutive patients admitted to our hospital via the emergency department for COVID-19 between 01/03/20 -18/05/20, demographic data, laboratory findings, admission electrocardiograph and clinical observations were compared in those who survived and those who died within 6 weeks. Hospital records were reviewed for prior electrocardiograms for comparison with those recorded on presentation with COVID-19.
RESULTS: Patients who died were older than survivors (82 vs 69.8 years, p 455 ms (males) and >465 ms (females) (p = 0.028, HR 1.49 [1.04-2.13]), as predictors of mortality. QTc prolongation beyond these dichotomy limits was associated with increased mortality risk (p = 0.0027, HR 1.78 [1.2-2.6]).
CONCLUSION: QTc prolongation occurs in COVID-19 illness and is associated with poor outcome.

Matched MeSH terms: Electrocardiography
Fulltext Acute pancreatitis with electrocardiographic changes mimicking acute coronary syndrome: a diagnostic conundrum

Shamala N., Faizal, A.H.

Medicine & Health, 2018;13(2):195-201.
MyJurnal

Electrocardiographic abnormalities can be associated with acute pancreatitis. However, data regarding the actual causative factor still remains elusive. Many previous cases were reported on non-specific ST and T wave abnormalities concurrent with acute pancreatitis but rarely with an increasing trend of cardiac markers. We describe the case of a 70-year-old female who presented with one such conundrum. Our patient had typical presentation of acute pancreatitis but had dynamic ECG changes with markedly increased cardiac markers. Subsequently after initiation of treatment for acute pancreatitis and observation for the course of several days, the ECG returned to the baseline as pre admission. This substantiates the fact that acute pancreatitis can mimic both biochemical and electrical manifestation of an acute coronary syndrome. Thus, Emergency Physicians should consider acute pancreatitis as a possible diagnosis in patients who present with abnormal electrocardiograms.

Matched MeSH terms: Electrocardiography
Takotsubo cardiomyopathy in association with hyperthyroidism

Zuhdi AS, Yaakob ZH, Sadiq MA, Ismail MD, Undok AW, Ahmad WA

Medicina (Kaunas), 2011;47(4):219-21.
PMID: 21829054

Takotsubo cardiomyopathy is a rare, acute, nonischemic cardiomyopathy causing transient left ventricular dysfunction, which can mimic myocardial infarction on its presentation. While many cardiac manifestations have been associated with hyperthyroidism, we report a rare case where it has precipitated takotsubo cardiomyopathy.

Matched MeSH terms: Electrocardiography
Fulltext QTc Interval Prolongation and Hemorrhagic Stroke: Any Difference Between Acute Spontaneous Intracerebral Hemorrhage and Acute Non-traumatic Subarachnoid Hemorrhage?

Amin OSM, Al-Bajalan SJ, Mubarak A

Med Arch, 2017 Jun;71(3):193-197.
PMID: 28974832 DOI: 10.5455/medarh.2017.71.193-197

BACKGROUND: A variety of ECG changes occur as an aftermath of stroke. Prolongation of the QTc interval is a well-documented change. We analyzed QTc interval prolongation among patients with acute hemorrhagic strokes.
METHODS: This observational study was conducted at the Emergency Department of Sulaymaniyah General Teaching Hospital and Shar Hospital from September 1st, 2014 to August 31st, 2015. Fifty patients who developed acute spontaneous hypertensive intracerebral hemorrhage (ICH) and 50 patients who developed acute non-traumatic subarachnoid hemorrhage (SAH) were included in the study. All patients underwent resting 12-lead ECG within half an hour of admission. The QTc interval was calculated and analyzed in those 100 patients.
RESULTS: Females (62%) outnumbered males (38%) with a female to male ratio of 1.6:1. Forty percent of the patients were between 60-69 years of age. Hypertension was seen in 82% of patients while left ventricular hypertrophy was documented in 40% of patients. The QTc was prolonged in 38 patients (17 patients in the ICH group and 21 patients in the SAH group). In both groups, males demonstrated QTc prolongation more than females. However, there were no statistically significant gender difference between both groups and within the same group. There was a statistically significant association between SAH and QTc prolongation (p-value<0.001); the ICH group did not demonstrate any significant relationship with QTc prolongation.
CONCLUSION: Prolongation in the QTc interval was "statistically" associated with acute SAH only. No gender difference was noted; whether this observation is clinically significant or not, it needs further analytic studies.

Matched MeSH terms: Electrocardiography
Fulltext Doppler echocardiography guided cardiac resynchronization therapy in heart failure

Oemar, Hamed, Abdulgani, Hafil Budianto

Medical Health Reviews, 2008;2008(1):17-28.
MyJurnal

Heart failure (HF) is a major burden in almost all countries. The prevalence of symptomatic HF is still high. Despite our best understanding of its pathophysiologic mechanisms and the recent advances in pharmacologic therapy, it remains a highmortality and morbidity disease. About 30-50% of patients with HF have concurrent electrical delay in the electrocardiogram (ECG), mainly in the form of LBBB.1 This kind of conduction delay commonly occurs in patients with idiopathic dilated cardiomyopathy and ischemic cardiomyopathy as well. The abnormality of left ventricle (LV) conduction will lead to a change in LV contraction pattern resulting dyssynchronized with right ventricle) contraction. Thus, a dyssynchronous LV contractile pattern usually manifested by late activation of the LV lateral wall which in turn impairs LV systolic function, reduces cardiac output, raises filling pressure and worsens mitral regurgitation2. Cardiac resynchronization therapy (CRT) improves cardiac function and exercise capacity leading to an improved survival in patients with advanced heart failure and ventricular conduction delay.3 The underlying mechanisms of these beneficial effects are not fully understood, but they appear to be related to a restored coordination of the left (LV) and right ventricular (RV) contraction and relaxation.4 These effects may directly lead to augmented contractility and reduction of LV filling pressures.5 Echocardiography has been widely used to identify patients who are candidates for CRT and to monitor the response in LV function at follow-up after device implantation. This review addresses the applications of CRT in patients with moderate– severe heart failure and the role of echocardiography in optimizing CRT including patient selection, risk and benefit of CRT and appropriate measures.

Matched MeSH terms: Electrocardiography
Pareto optimization for electrodes placement: compromises between electrophysiological and practical aspects

Mulyadi IH, Fiedler P, Eichardt R, Haueisen J, Supriyanto E

Med Biol Eng Comput, 2021 Feb;59(2):431-447.
PMID: 33495984 DOI: 10.1007/s11517-021-02319-9

Wearable electronics and sensors are increasingly popular for personal health monitoring, including smart shirts containing electrocardiography (ECG) electrodes. Optimal electrode performance requires careful selection of the electrode position. On top of the electrophysiological aspects, practical aspects must be considered due to the dynamic recording environment. We propose a new method to obtain optimal electrode placement by considering multiple dimensions. The electrophysiological aspects were represented by P-, R-, and T-peak of ECG waveform, while the shirt-skin gap, shirt movement, and regional sweat rate represented the practical aspects. This study employed a secondary data set and simulations for the electrophysiological and practical aspects, respectively. Typically, there is no ideal solution that maximizes satisfaction degrees of multiple electrophysiological and practical aspects simultaneously; a compromise is the most appropriate approach. Instead of combining both aspects-which are independent of each other-into a single-objective optimization, we used multi-objective optimization to obtain a Pareto set, which contains predominant solutions. These solutions may facilitate the decision-makers to decide the preferred electrode locations based on application-specific criteria. Our proposed approach may aid manufacturers in making decisions regarding the placement of electrodes within smart shirts.

Matched MeSH terms: Electrocardiography*
Fulltext Atypical Presentation of Takotsubo Cardiomyopathy: Stroke as a Predisposing Factor

Loong CW, Firdaus MAM, Said MRM, Abidin IZ

Medeni Med J, 2020;35(3):266-270.
PMID: 33110680 DOI: 10.5222/MMJ.2020.47374

Takotsubo syndrome is a rare disease and remained ambiguous with its etiology. The disease manifests in various clinical characteristics and even mimicking acute coronary syndrome. We are reporting a case of an elderly lady who manifested by unsteady gaits and recurrent falls. Subacute infarct of the right corona radiata was observed on the brain CT. In addition, coronary angiography and ventriculogram were performed because of dynamic ECG changes and elevated troponin I levels. The angiogram was normal while ventriculogram showed apical ballooning. She was diagnosed and treated as Takotsubo syndrome.

Matched MeSH terms: Electrocardiography
Fulltext Basic technology and proper usage of home health monitoring devices

Mondal H, Mondal S

Malays Fam Physician, 2021 Mar 25;16(1):8-14.
PMID: 33948137 DOI: 10.51866/rv1097

Home health monitoring devices are consumer-grade devices that help to monitor the health of individuals at home. These devices are usually low-cost and easily procurable, and they can be operated by patients or their caretakers with minimal training. However, improper usage of these devices may provide erroneous results, which can lead to an unnecessary hospital visit or teleconsultation. In this article, we discuss the basic technology and proper usage of some of these devices, namely automatic blood pressure monitors, blood glucose monitors, body fat monitors, pulse oximeters, electrocardiographs, digital thermometers, and infrared thermometers. This brief document intends to help primary health care professionals and their patients use these devices.

Matched MeSH terms: Electrocardiography
Fulltext The ' widow maker': Electrocardiogram features that should not be missed

Yusuf Muharam M, Ahmad R, Harmy M

Malays Fam Physician, 2013;8(1):45-7.
PMID: 25606269 MyJurnal

Patients with Wellen's syndrome often present with chest pain and found to have specific precordial T-wave changes on the electrocardiogram (ECG). They subsequently develop a large anterior wall myocardial infarction. These specific electrocardiographic abnormalities are associated with critical stenosis of the proximal left anterior descending coronary artery (LAD). This syndrome is often under-recognised and has fatal consequences; it is, therefore, also known as the widow maker. We highlight a case of a 39-year old gentleman who had a history of coronary artery disease and typical ECG characteristics of Wellen's syndrome.

Matched MeSH terms: Electrocardiography
Fulltext Wellen's syndrome: Challenges in diagnosis

Agarwal A, Vyas S, Kumar R

Malays Fam Physician, 2015;10(3):35-7.
PMID: 27570607

Wellen's syndrome is a pre-infarction stage of coronary artery disease characterised by predefined clinical and electrocardiographic (ECG) criteria of a subgroup of patients with myocardial ischaemia. Early recognition and appropriate intervention of this syndrome carry significant diagnostic and prognostic value. We report this unusual syndrome in an elderly man who presented with recurrent angina and characteristic ECG changes as T-waves inversion in the precordial leads, especially in V2-V6 during pain-free periods and ECG obtained during episodes of pain demonstrating upright T-waves with possible elevated ST segments from V1-V4. Cardiac enzymes were positive and coronary angiography revealed critical stenosis in the proximal left anterior descending artery. It is important to timely identify this condition and intervene appropriately as these patients may develop extensive myocardial infarction that carries a significant morbidity and mortality.

Matched MeSH terms: Electrocardiography
Fulltext Real time telecardiology system

Ming Fung Ng, Hoe Tung Yew, Seng Kheau Chung, Syed Shajee Husain, Nelbon Giloi

Malaysian Journal of Medicine and Health Sciences, 2019;15(106):84-84.
MyJurnal

Introduction: Cardiovascular diseases remain as the principal cause of death in Malaysia. The rural areas in Sabah still suffer from shortage of doctors and specialists. Health Indicators 2018 from Ministry of Health Malaysia shows the ratio of doctor to population in Sabah is 1:1029. The lack of specialist care for the rural population is a major concern. To overcome the barrier of healthcare services, deployment of telecardiology system is necessary. The objective of this project is to develop a real-time telecardiology system that can transmit and guarantee the quality of the ECG signal. Methods: The proposed real-time telecardiology system used an ECG sensor AD8232 to collect the ECG signal. Arduino ESP32 as a main controller of the system. It uploads the collected ECG data to the online database in real-time through Wi-Fi or cellular network with MQTT protocol. A website is developed for displaying the real-time ECG signal. Results: The proposed system has successfully displayed the ECG signal in real-time with 10000 ECG raw data were tested and stored in online database with no package loss and package error during the data transmission. The online system able to display real-time ECG signal and BPM on webpage. The real-time BPM is extracted from the real-time ECG raw data. Conclusion: The proposed real-time telecardiology system has success-fully transmitted ECG in real-time with high data integrity. Telecardiology is one of the best solutions to resolve the issue of shortage of healthcare professionals in rural areas and improve the healthcare quality in rural areas.

Matched MeSH terms: Electrocardiography
Fulltext A rare case of Riamet induced prolonged corrected QT interval

Neesha Sundramoorthy, Khaiteri R., Jer Ming Low, Chan Soon Thim Darren

Malaysian Journal of Medicine and Health Sciences, 2019;15(106):70-70.
MyJurnal

Introduction: Artemether and lumefantrine was registered as Riamet in Switzerland in 1999 and is commonly used in Keningau Hospital for managing uncomplicated malaria. Riamet works at the food vacoule of the malarial parasite, where they interfere with the conversion of heme into haemozoin. Case description: We report a case of Riamet induced prolonged corrected QT interval (QTc) in a 37 year old gentleman admitted for severe malaria (hypotension) with normal QTc of 420msc on presentation. Upon starting Riamet, he developed bradycardia and ECG showed sinus bradycardia with prolonged QTc of 551msec and no arrythmias. Echocardiography showed no structural heart abnormalities. All electrolytes were within normal range. He was monitored in cardiac care unit with decision to complete 6 doses of Riamet. Patient was started on Dopamine infusion which maintained his blood pressure and heart rate within normal range. 5 days post Riamet completion, his heart rate improved and dopamine infusion was tapered off and QTc normalized to 407msc. Discussion: The most common mechanism of drugs causing QT inter-val prolongation is by blocking the human ether-à-go-go related gene (hERG) potassium channel. Blockage of the hEGR channel lengthens ventricular re-polarization and duration of ventricular action potential which is reflected in ECG as prolonged QT interval. In the in-vitro whole cell patch clamp study, lumefantrine and its metabolite desbu-tyl-lumefantrine showed a concentration-dependent inhibition of the hERG current. The period of QTc prolongation was 3.5 to 4 days after the last dose of the standard 6 dose regimen. Conclusion: Riamet induced prolonged QTc is a very rare complication. A baseline electrocardiography is therefore imminent for every patient prior to initiation of this medication to avoid cardiac arrythmias.

Matched MeSH terms: Electrocardiography
Fulltext The rare congenital anomaly of scimitar syndrome: an unusual presentation in symptomatic adult

Siti Zulaiha Binti Che Hat

Malaysian Journal of Medicine and Health Sciences, 2020;16(3):334-336.
MyJurnal

Scimitar syndrome is a rare congenital heart defect occurring in 1 to 3 per 100,000 live births. This is a case of a 26 years old lady presenting with episodic fainting spells since the age of 18 years old. She was initially diagnosed with epilepsy until a referral to our centre found a soft splitting of the second heart sound and multiple premature ventricular complexes on ECG. The computed tomography of the pulmonary artery confirmed the diagnosis if Scim- itar syndrome in the presence of anomalous single right pulmonary vein draining into infra-diaphragmatic systemic venous circulation. A corrective open-heart surgery to re-implant the pulmonary vein was performed with excellent clinical outcomes. Therefore, it is crucial for clinicians to embody high index of suspicion of congenital anomaly even in adults presenting with indefinite clinical symptoms. This report also represents the first published case of adult Scimitar syndrome from Malaysia.

Matched MeSH terms: Electrocardiography
Fulltext The brunt of intensive simulation airway management training programme on the final year nursing in one of health training institutions in Sabah

Mazlinda Musa, Fidelia Ferderik Anis, Hamidah Hassan, Syed Sharizman Syed Abdul Rahim, Siti Fatimah Saat

Malaysian Journal of Medicine and Health Sciences, 2020;16(105):18-0.
MyJurnal

Introduction: Airway management is one of the most important steps in emergency patient care, and it is part of the core content of emergency training programme in nursing. Besides, learning in the real clinical area on artificial air- way management is almost impossible due to the complexity of clinical conditions and non-uniform treatment algo- rithms that make the training strategies even more difficult to develop. This study was to evaluate the effectiveness of the simulation airway management training programme developed for the final year nursing students. Methods: This was a quasi-experimental with convenience sampling technique approach used. Students were exposed with the Intensive simulation of airway management technique which includes BLS, oropharyngeal measure and insertion, high flow O2 administration, interpret ECG, use of defib and understanding role of arrest team during emergency. The questionnaire on confident level was given before and after the simulation of airway management. Results: The results showed significant different in the mean score of pre-tests and post-tests (CI95% (-0.53414, -0.09586), t= -3.009, df = 19, p

Matched MeSH terms: Electrocardiography
Fulltext Student nurses’ knowledge and practice on performing and interpreting electrocardiography: a cross sectional study

Hasfena Lamdin, Segaran Ramodran, Regidor III Dioso

Malaysian Journal of Medicine and Health Sciences, 2020;16(105):57-0.
MyJurnal

Introduction: In clinical settings, nurses are often the first to be called upon to perform ECG procedures and as such, it is imperative nurses can interpret and immediately report basic anomalies in electrocardiograms. In Universiti Malaysia Sabah (UMS), although student nurses are taught ECG both in theory and hands-on learning through sim- ulation, there is no study examining the extent of student’s knowledge-skill retention regarding ECG. This study is to determine the learning attitude, level of knowledge and skill retention on electrocardiography among student nurses in UMS. Methods: A study entails a descriptive cross-sectional design. Nonprobability purposive sampling was used, where 100 (N) nursing students (2nd year n=50, 3rd-year n= 50) with selection criteria of respondents with prior learning on ECG were recruited for the study. A validated questionnaire (Cronbach α=0.81) benchmarked from a previous study was used to assessed learning attitude, level of knowledge and practice (skills) regarding ECG. Results: 85% (n=80) of the student nurses in this study had good to fair level knowledge and 15% (n=15) scored poor level of knowledge regarding ECG. With regards to practice competency, 87% (n=87) had fair to good level and 13% (n=13) scored poor skill level regarding ECG. Learning attitude towards ECG was positive among 88% (n=88) with 12% having a negative stance on readiness towards learning ECG. Sub-analyses showed a strong positive correlation between knowledge on ECG and practice (r=0.64). Conclusion: There is fair to good learning attitude, knowledge, and practice competency regarding ECG among the majority of nursing students in this study but a small cohort of students in this study have competency deficit regarding ECG. The deficit may compromise their ability to report critical anomalies present in patient electrocardiograms and there is a need to address this knowledge- practice gap.

Matched MeSH terms: Electrocardiography

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