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"Medical advancements"
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Left Ventricular Assist Device in Advanced Refractory Heart Failure: A Comprehensive Review of Patient Selection, Surgical Approaches, Complications and Future Perspectives
by
Sleiman, Christopher
,
Hamdan, Righab
,
Al Hazzouri, Antonio
in
advanced heart failure (HF)
,
biomedical advancements
,
Blood platelets
2024
The management of advanced heart failure (HF) has long posed significant challenges due to its complex and chronic nature. Heart transplantation, while effective, is not always feasible due to the limited availability of donor organs. In this context, long term mechanical circulatory support and mainly left ventricular assist devices (LVADs) have emerged as a vital intervention to fill this gap. LVAD superiority compared to medical therapy for some patients in advanced heart failure has been demonstrated either as a bridge to transplantation or as destination therapy. This literature review provides a comprehensive overview of the effectiveness, challenges, and advancements in the use of LVADs for treating advanced heart failure. It evaluates clinical outcomes associated with LVAD therapy, focusing on survival rates and quality of life improvements. The review synthesizes findings from recent studies, highlighting both the benefits and complications of LVAD implantation, such as infectious risk, thromboembolic events, hemorrhage and device malfunction. Additionally, it explores the latest technological and biomedical advancements in LVAD design, including innovations in biocompatibility, miniaturization, and power management. By examining current research, this review aims to elucidate how LVADs are transforming heart failure treatment and to offer insights into future directions for clinical practice and research.
Journal Article
Doctors at War
2017
Doctors at Waris a candid account of a trauma surgical team based, for a tour of duty, at a field hospital in Helmand, Afghanistan. Mark de Rond tells of the highs and lows of surgical life in hard-hitting detail, bringing to life a morally ambiguous world in which good people face impossible choices and in which routines designed to normalize experience have the unintended effect of highlighting war's absurdity. With stories that are at once comical and tragic, de Rond captures the surreal experience of being a doctor at war. He lifts the cover on a world rarely ever seen, let alone written about, and provides a poignant counterpoint to the archetypical, adrenaline-packed, macho tale of what it is like to go to war.
Here the crude and visceral coexist with the tender and affectionate. The author tells of well-meaning soldiers at hospital reception, there to deliver a pair of legs in the belief that these can be reattached to their comrade, now in mid-surgery; of midsummer Christmas parties and pancake breakfasts and late-night sauna sessions; of interpersonal rivalries and banter; of caring too little or too much; of tenderness and compassion fatigue; of hell and redemption; of heroism and of playing God. While many good firsthand accounts of war by frontline soldiers exist, this is one of the first books ever to bring to life the experience of the surgical teams tasked with mending what war destroys.
PulseDB: A large, cleaned dataset based on MIMIC-III and VitalDB for benchmarking cuff-less blood pressure estimation methods
by
Wang, Weinan
,
Najafizadeh, Laleh
,
Kilgore, Kevin L.
in
Accuracy
,
arterial blood pressure (ABP)
,
Blood pressure
2023
There has been a growing interest in developing cuff-less blood pressure (BP) estimation methods to enable continuous BP monitoring from electrocardiogram (ECG) and/or photoplethysmogram (PPG) signals. The majority of these methods have been evaluated using publicly-available datasets, however, there exist significant discrepancies across studies with respect to the size, the number of subjects, and the applied pre-processing steps for the data that is eventually used for training and testing the models. Such differences make conducting performance comparison across models largely unfair, and mask the generalization capability of various BP estimation methods. To fill this important gap, this paper presents “PulseDB,” the largest cleaned dataset to date, for benchmarking BP estimation models that also fulfills the requirements of standardized testing protocols. PulseDB contains 1) 5,245,454 high-quality 10 -s segments of ECG, PPG, and arterial BP (ABP) waveforms from 5,361 subjects retrieved from the MIMIC-III waveform database matched subset and the VitalDB database; 2) subjects’ identification and demographic information, that can be utilized as additional input features to improve the performance of BP estimation models, or to evaluate the generalizability of the models to data from unseen subjects; and 3) positions of the characteristic points of the ECG/PPG signals, making PulseDB directly usable for training deep learning models with minimal data pre-processing. Additionally, using this dataset, we conduct the first study to provide insights about the performance gap between calibration-based and calibration-free testing approaches for evaluating generalizability of the BP estimation models. We expect PulseDB, as a user-friendly, large, comprehensive and multi-functional dataset, to be used as a reliable source for the evaluation of cuff-less BP estimation methods.
Journal Article
Medical Image Security Using Dual Encryption with Oppositional Based Optimization Algorithm
by
Balasubramanian, R
,
S Sundara Pandiyan
,
Lakshmanaprabu, S K
in
Algorithms
,
Computer science
,
Correlation coefficient
2018
Security is the most critical issue amid transmission of medical images because it contains sensitive information of patients. Medical image security is an essential method for secure the sensitive data when computerized images and their relevant patient data are transmitted across public networks. In this paper, the dual encryption procedure is utilized to encrypt the medical images. Initially Blowfish Encryption is considered and then signcryption algorithm is utilized to confirm the encryption model. After that, the Opposition based Flower Pollination (OFP) is utilized to upgrade the private and public keys. The performance of the proposed strategy is evaluated using performance measures such as Peak Signal to Noise Ratio (PSNR), entropy, Mean Square Error (MSE), and Correlation Coefficient (CC).
Journal Article
PEDI: Towards Efficient Pathway Enrichment and Data Integration in Bioinformatics for Healthcare Using Deep Learning Optimisation
by
Selvarajan, Shitharth
,
Manoharan, Hariprasath
in
Bioinformatics
,
Data integration
,
Deep learning
2025
This work presents an enhanced identification procedure utilising bioinformatics data, employing optimisation techniques to tackle crucial difficulties in healthcare operations. A system model is designed to tackle essential difficulties by analysing major contributions, including risk factors, data integration and interpretation, error rates and data wastage and gain. Furthermore, all essential aspects are integrated with deep learning optimisation, encompassing data normalisation and hybrid learning methodologies to efficiently manage large-scale data, resulting in personalised healthcare solutions. The implementation of the suggested technology in real time addresses the significant disparity between data-driven and healthcare applications, hence facilitating the seamless integration of genetic insights. The contributions are illustrated in real time, and the results are presented through simulation experiments encompassing 4 scenarios and 2 case studies. Consequently, the comparison research reveals that the efficacy of bioinformatics for enhancing routes stands at 7%, while complexity diminish to 1%, thereby indicating that healthcare operations can be transformed by computational biology.
Journal Article
Deep Learning-Based Detection of Impacted Teeth on Panoramic Radiographs
2024
Objective:
The aim is to detect impacted teeth in panoramic radiology by refining the pretrained MedSAM model.
Study design:
Impacted teeth are dental issues that can cause complications and are diagnosed via radiographs. We modified SAM model for individual tooth segmentation using 1016 X-ray images. The dataset was split into training, validation, and testing sets, with a ratio of 16:3:1. We enhanced the SAM model to automatically detect impacted teeth by focusing on the tooth’s center for more accurate results.
Results:
With 200 epochs, batch size equals to 1, and a learning rate of 0.001, random images trained the model. Results on the test set showcased performance up to an accuracy of 86.73%, F1-score of 0.5350, and IoU of 0.3652 on SAM-related models.
Conclusion:
This study fine-tunes MedSAM for impacted tooth segmentation in X-ray images, aiding dental diagnoses. Further improvements on model accuracy and selection are essential for enhancing dental practitioners’ diagnostic capabilities.
Journal Article
A Deep Learning Based Intelligent Decision Support System for Automatic Detection of Brain Tumor
by
Sheikh-Akbari, Akbar
,
Alajmani, Samah H
,
Ullah, Zahid
in
Accuracy
,
Artificial intelligence
,
Artificial neural networks
2024
Brain tumor (BT) is an awful disease and one of the foremost causes of death in human beings. BT develops mainly in 2 stages and varies by volume, form, and structure, and can be cured with special clinical procedures such as chemotherapy, radiotherapy, and surgical mediation. With revolutionary advancements in radiomics and research in medical imaging in the past few years, computer-aided diagnostic systems (CAD), especially deep learning, have played a key role in the automatic detection and diagnosing of various diseases and significantly provided accurate decision support systems for medical clinicians. Thus, convolution neural network (CNN) is a commonly utilized methodology developed for detecting various diseases from medical images because it is capable of extracting distinct features from an image under investigation. In this study, a deep learning approach is utilized to extricate distinct features from brain images in order to detect BT. Hence, CNN from scratch and transfer learning models (VGG-16, VGG-19, and LeNet-5) are developed and tested on brain images to build an intelligent decision support system for detecting BT. Since deep learning models require large volumes of data, data augmentation is used to populate the existing dataset synthetically in order to utilize the best fit detecting models. Hyperparameter tuning was conducted to set the optimum parameters for training the models. The achieved results show that VGG models outperformed others with an accuracy rate of 99.24%, average precision of 99%, average recall of 99%, average specificity of 99%, and average f1-score of 99% each. The results of the proposed models compared to the other state-of-the-art models in the literature show better performance of the proposed models in terms of accuracy, sensitivity, specificity, and f1-score. Moreover, comparative analysis shows that the proposed models are reliable in that they can be used for detecting BT as well as helping medical practitioners to diagnose BT.
Journal Article
Rib and Sternum Fractures From Falls: Global Burden of Disease and Predictions
2025
Background:
By combining existing Global Burden of Disease (GBD) data with the economic conditions of different regions, we can better understand disease trends and make more accurate estimations, facilitating effective public health interventions. Medical institutions can consequently allocate resources more efficiently. For patients, this helps lower disease risk and reduce the overall disease burden in affected areas.
Methods:
We analyzed health patterns in 204 countries using GBD 2021 methodologies and conducted separate analyses of disease burden in China and worldwide. We estimated incidence, prevalence, and years lived with disability (YLDs). We further assessed disease status by incorporating Socio-Demographic Index (SDI) values. In addition, we used Mendelian randomization to identify factors leading from falls to thoracic rib fractures, and we investigated the key protein involved in thoracic rib fractures through detection of 4907 plasma proteins.
Results:
From 1990 to 2021, the age-standardized incidence rate (ASIR) and age-standardized prevalence rate (ASPR) generally showed an upward trend, although male ASIR, and ASPR displayed a slight decline. In China, however, ASIR and ASPR reached a turning point in 2000, dipped in 2005, then trended upward again. Morbidity and prevalence were negatively correlated with SDI. Based on Mendelian randomization analyses, falls leading to thoracic rib fractures were linked to education level and osteoporosis. Moreover, HAMP was identified as the key protein in thoracic rib fractures.
Conclusion:
As global populations age, analyzing the global burden of thoracic rib fractures caused by falls from 1990 to 2021 can help guide the development of effective public health prevention strategies and optimize the allocation of existing medical resources.
Journal Article
Validation of Omron HBP-1100-E Professional Blood Pressure Measuring Device According to the American Association for the Advancement of Medical Instrumentation Protocol: The PERSIAN Guilan Cohort Study (PGCS)
by
Naghipour, Mohammadreza
,
Joukar, Farahnaz
,
Mansour-Ghanaei, Fariborz
in
Accuracy
,
american association for the advancement of medical instrumentation
,
Analysis
2020
Blood pressure (BP) measurement accuracy is critical to the diagnosis and management of hypertension. The aim of the present study was to validate the Omron HBP-1100-E professional blood pressure measuring device in accordance with the American Association for the Advancement of Medical Instrumentation in Iranian adults.
Simultaneous blood pressure auscultator measurements were obtained by two observers using mercury sphygmomanometers as a reference, sequentially with a measurement by using the Omron HBP-1100-E device. Absolute device-reference blood pressure differences were categorized into three error categories (within 5, 10, and 15 mmHg), and mean device-reference blood pressure difference (standard deviation) was calculated and evaluated using the American Association for the Advancement of Medical Instrumentation criteria.
A total of 85 participants (250 paired readings) were enrolled to the study. 26.8%, 55.6%, and 79.6% of the device-reference blood pressure differences agreed to within 5, 10 and 15 mmHg, respectively, for systolic blood pressure, and 39.6%, 69.2%, and 81.6% of measurements for diastolic blood pressure, respectively, and failed to pass the protocol criteria. The mean device-reference blood pressure difference was 8.0 ± 13.1 mmHg for systolic BP and 2.2 ± 11.3 mmHg for diastolic BP, and was >5.0 ± 8.0 mmHg (required criteria).
Omron HBP-1100-E professional blood pressure monitor is not desirable for measuring the BP for Iranian adults as it overestimates blood pressure in this population.
Journal Article
Breaking Barriers to Rapid Whole Genome Sequencing in Pediatrics: Michigan’s Project Baby Deer
by
Ames, Elizabeth G.
,
Dimmock, David P.
,
Scheurer-Monaghan, Andrea
in
Advocacy
,
Babies
,
Collaboration
2023
The integration of precision medicine in the care of hospitalized children is ever evolving. However, access to new genomic diagnostics such as rapid whole genome sequencing (rWGS) is hindered by barriers in implementation. Michigan’s Project Baby Deer (PBD) is a multi-center collaborative effort that sought to break down barriers to access by offering rWGS to critically ill neonatal and pediatric inpatients in Michigan. The clinical champion team used a standardized approach with inclusion and exclusion criteria, shared learning, and quality improvement evaluation of the project’s impact on the clinical outcomes and economics of inpatient rWGS. Hospitals, including those without on-site geneticists or genetic counselors, noted positive clinical impacts, accelerating time to definitive treatment for project patients. Between 95–214 hospital days were avoided, net savings of $4155 per patient, and family experience of care was improved. The project spurred policy advancement when Michigan became the first state in the United States to have a Medicaid policy with carve-out payment to hospitals for rWGS testing. This state project demonstrates how front-line clinician champions can directly improve access to new technology for pediatric patients and serves as a roadmap for expanding clinical implementation of evidence-based precision medicine technologies.
Journal Article