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1.
Artigo em Inglês | MEDLINE | ID: mdl-35410096

RESUMO

In this study, we compare and analyze the scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), morphometry and cyclic fatigue resistance of Endogal, PathMax, and Smarttrack novel brands of nickel-titanium (NiTi) alloy endodontic files. Material and Methods: Thirty sterile NiTi endodontic rotary files were randomly selected and assigned to one of the following study groups: A: 25.08 F2 Endogal (EDG) (n = 10); B: 25.08 F2 Path Max Pro (PMP) (n = 10); and C: 25.06 Smarttrack (ST) (n = 10). Dynamic cyclic fatigue tests were conducted using a cyclic fatigue device in stainless steel artificial root canal systems with an apical diameter of 250 µm, curvature angle of 60°, radius of curvature of 3 mm, and taper of 6%. Additionally, we analyzed the NiTi endodontic rotary files using EDX, SEM, and morphometry after micro-CT scanning. The results were analyzed using Weibull statistical analysis and ANOVA testing. Results: SEM, EDX, and morphometric analyses showed differences between the three novel brands of NiTi endodontic rotary files. Moreover, statistically significant differences were observed between the number of cycles to failure and time to failure of the three novel brands of NiTi endodontic rotary files (p < 0.001). Conclusions: Smarttrack NiTi alloy endodontic reciprocating files display greater resistance to cyclic fatigue than Endogal and Path Max Pro NiTi alloy endodontic rotary files, due to the reciprocating movement and metallurgical composition.


Assuntos
Níquel , Titânio , Ligas , Desenho de Equipamento , Falha de Equipamento , Microscopia Eletrônica de Varredura , Níquel/química , Preparo de Canal Radicular , Titânio/química
3.
Sensors (Basel) ; 22(6)2022 Mar 09.
Artigo em Inglês | MEDLINE | ID: mdl-35336277

RESUMO

Centrifugal pumps have a wide range of applications in industrial and municipal water affairs. During the use of centrifugal pumps, failures such as bearing wear, blade damage, impeller imbalance, shaft misalignment, cavitation, water hammer, etc., often occur. It is of great importance to use smart sensors and digital Internet of Things (IoT) systems to monitor the real-time operating status of pumps and predict potential failures for achieving predictive maintenance of pumps and improving the intelligence level of machine health management. Firstly, the common fault forms of centrifugal pumps and the characteristics of vibration signals when a fault occurs are introduced. Secondly, the centrifugal pump monitoring IoT system is designed. The system is mainly composed of wireless sensors, wired sensors, data collectors, and cloud servers. Then, the microelectromechanical system (MEMS) chip is used to design a wireless vibration temperature integrated sensor, a wired vibration temperature integrated sensor, and a data collector to monitor the running state of the pump. The designed wireless sensor communicates with the server through Narrow Band Internet of Things (NB-IoT). The output of the wired sensor is connected to the data collector, and the designed collector can communicate with the server through 4G communication. Through cloud-side collaboration, real-time monitoring of the running status of centrifugal pumps and intelligent diagnosis of centrifugal pump faults are realized. Finally, on-site testing and application verification of the system was conducted. The test results show that the designed sensors and sensor application system can make good use of the centrifugal pump failure mechanism to automatically diagnose equipment failures. Moreover, the diagnostic accuracy rate is above 85% by using the method of wired sensor and collector. As a low-cost and easy-to-implement solution, wireless sensors can also monitor gradual failures well. The research on the sensors and pump monitoring system provides feasible methods and an effective means for the application of centrifugal pump health management and predictive maintenance.


Assuntos
Vibração , Falha de Equipamento , Monitorização Fisiológica , Temperatura
5.
Comput Intell Neurosci ; 2022: 7105526, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35281192

RESUMO

The present research mainly aims to use a mathematical formula to determine the optimal intervals for conducting preventive maintenance operations for machines to reduce the expected failure time when the malfunction data follow the Weibull distribution. The reliability function, failure rate, and the average time between machine failures were derived after performing preventive maintenance operations and before conducting preventive maintenance operations to state the amelioration that happens to machines. These rely on real data of performing preventive maintenance operations and the downtime required to repair machine or device faults that occur between preventive maintenance periods and the downtime necessary to perform preventive maintenance operations on the machine or device. Thus, the study concluded that preventive maintenance operations are working to increase the reliability of the machine and improve it, as well as to increase the average period of time for the machine to operate between faults.


Assuntos
Sistemas Computacionais , Falha de Equipamento , Sistemas Computacionais/normas , Reprodutibilidade dos Testes
6.
Technol Health Care ; 30(S1): 513-520, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35124625

RESUMO

BACKGROUND: The limiters have been used to protect the ultrasound receivers because of the inherent characteristic of the transducers which are required to use the high voltage excitation to obtain the reasonable echo signal amplitudes. OBJECTIVE: Among the variety of the limiters, the performances of discharge voltage degradation from the limiters gradually deteriorate the whole ultrasound systems according to the applied voltages of the ultrasonic transducers. This could cause the ultrasound systems to be unreliable for the long-term operations, resulting in possibly breaking the receiver systems. METHODS: Designed limiters were evaluated with insertion loss, total harmonic distortion, and pulse-echo responses with the ultrasound transducer devices. RESULTS: Designed new dual-resistor-diode limiters exhibited greater and faster suppression of the pulse width (1.15 V and 6.1 µs) for high-voltage signals. CONCLUSIONS: Our proposed dual-resistor-diode limiter could be one of the potential candidates for reliable ultrasound receiver system.


Assuntos
Transdutores , Ultrassom , Falha de Equipamento , Humanos , Ultrassonografia
8.
J Cardiovasc Electrophysiol ; 33(4): 769-772, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35118754

RESUMO

Cardiac resynchronization with defibrillator (CRT-D) malfunction can be due to various reasons, including wire injury, insulation break, battery problems, or patient factors. Undesired outcomes can be dramatically elevated in those settings, prompting early detection and proper troubleshooting. To diagnose, clinical correlation and device interrogation are vital. However, it is not uncommon to find general troubleshooting options insufficient, as highlighted in this case report. Here, we presented an unusual "head assembly separation," as the main reason for abnormal device parameters.


Assuntos
Terapia de Ressincronização Cardíaca , Desfibriladores Implantáveis , Insuficiência Cardíaca , Terapia de Ressincronização Cardíaca/efeitos adversos , Dispositivos de Terapia de Ressincronização Cardíaca/efeitos adversos , Desfibriladores Implantáveis/efeitos adversos , Falha de Equipamento , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/terapia , Humanos , Resultado do Tratamento
9.
Pediatr Emerg Care ; 38(2): e588-e594, 2022 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-35100761

RESUMO

OBJECTIVES: We sought to identify clinical characteristics that would negatively predict shunt failure, thus potentially obviating the need for further diagnostic workup or extended periods of observation. We hypothesized that viral symptoms and a patient history of epilepsy or chronic headaches would be negative predictors of shunt failure. METHODS: Data were retrospectively collected for children 19 years or younger with a cerebrospinal fluid diverting shunt in their medical history or problem list who underwent neuroimaging during an ED visit from March 2008 to September 2016. Patients were defined as having shunt failure if they required surgical exploration for shunt revision within 7 days of the ED visit. Descriptive statistics were used for patient demographics, current symptoms, and historical features. We conducted a logistic regression analysis to determine which characteristics were associated with the odds of shunt failure and used binary recursive partitioning to determine if there were features or a combination of features that were able to accurately classify patients without shunt failure. RESULTS: There were 606 visits by 277 patients during this interval, 34% of whom were experiencing shunt failure. Variables found to be significantly predictive of shunt failure were revision within the prior 6 months, vomiting, personality changes, family opinion of shunt failure, and cranial nerve palsies. Viral symptoms and a history of epilepsy or chronic headaches were not predictive of shunt failure. Binary recursive partitioning identified family opinion and personality changes as predictive of shunt failure, with a sensitivity of 72.2% (95% confidence interval, 65.5%-78.2%) and specificity of 46.6% (95% confidence interval, 41.7%-51.7%). CONCLUSIONS: Although certain clinical and historical features have modest predictive value in children with shunted hydrocephalus, these factors are insufficiently sensitive to exclude shunt failure, arguing for liberal neuroimaging and extended observation.


Assuntos
Derivações do Líquido Cefalorraquidiano , Hidrocefalia , Derivações do Líquido Cefalorraquidiano/efeitos adversos , Criança , Falha de Equipamento , Humanos , Hidrocefalia/diagnóstico por imagem , Hidrocefalia/cirurgia , Procedimentos Neurocirúrgicos , Estudos Retrospectivos
10.
Br J Nurs ; 31(2): S4-S7, 2022 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-35094537

RESUMO

Most patients in hospital will have some form of intravenous (IV) catheter in situ at some time to facilitate the administration of IV therapy. Accidental dislodgement, although widespread, is often unrecognised as a contributor to IV catheter failure. Dislodgement usually contributes to the delay in the administration of treatment, time-consuming IV restarts and a potential need for more invasive procedures. Dislodgement has serious implications, with costs to both patient and healthcare costs. Historically, prevention of IV catheter dislodgement has focused on the use of the correct securement methods and technique; however, these fail in many occasions, for example, where patients are confused or during bed transfers. In the recent years, new breakaway connector systems, such as ReLink, have been designed, which allow the tubing to become disconnected when undue pressure or pull is placed on it. This is done by a safety release valve that breaks apart, sealing off both ends of the tubing in an aseptic manner, while shutting off medication flow and preserving IV catheter integrity. Awareness raising and education focusing on accidental IV catheter dislodgement and the different ways to reduce its incidence in clinical practice would improve patient safety and potentially have significant healthcare savings.


Assuntos
Cateterismo Periférico , Administração Intravenosa , Cateteres , Falha de Equipamento , Humanos , Segurança do Paciente
11.
Artigo em Inglês | MEDLINE | ID: mdl-35055840

RESUMO

BACKGROUND: Peri-implantitis (PIT) is highly prevalent in patients with dental implants and is a challenging condition to treat due to the limited outcomes reported for non-surgical and surgical therapies. Therefore, epigenetic therapeutics might be of key importance to treat PIT. However, developing epigenetic therapeutics is based on understanding the relationship between epigenetics and disease. To date, there is still scarce knowledge about the relationship between epigenetic modifications and PIT, which warrants further investigations. AIM: The purpose of this study was to evaluate the level of global DNA methylation associated with implant failure (IF) due to PIT compared to periodontally healthy (PH) patients. MATERIAL AND METHODS: A total of 20 participants were initially enrolled in this pilot, exploratory, single-blinded, cross-sectional clinical human study in two groups: 10 in the PH group and 10 in the IF group. In the participants who have completed the study, gingival tissue and bone samples were harvested from each participant and were used to perform global DNA methylation analysis. The percentage of global DNA methylation (5-mC%) was compared (1) between groups (PH and IF); (2) between the subgroups of gingival tissue and bone separately; (3) in the whole sample, comparing gingival tissue and bone; (4) within groups, comparing gingival tissue and bone. Demographic, periodontal, and peri-implant measurements as well as periodontal staging, were also recorded. All statistical comparisons were made at the 0.05 significance level. RESULTS: Out of the initially enrolled 20 patients, only 19 completed the study and, thus, were included in the final analysis; 10 patients in the PH group and 9 patients in the IF group, contributing to a total of 38 samples. One patient from the IF group was excluded from the study due to systemic disease. The mean implant survival time was 10.8 years (2.17-15.25 years). Intergroup comparison, stratified by group, indicated a similar 5-mC% between the PH and IF groups in both gingival tissue and bone (p = 0.599), only in bone (p = 0.414), and only in gingival tissue (p = 0.744). Intragroup comparison, stratified by the type of sample, indicated a significantly higher 5-mC% in gingival tissue samples compared to bone in both the PH and IF groups (p = 0.001), in the PH group (p = 0.019), and in the IF group (p = 0.009). CONCLUSIONS: Within the limitations of this study, higher global DNA methylation levels were found in gingival tissue samples compared to bone, regardless of the study groups. However, similar global DNA methylation levels were observed overall between the IF and PH groups. Yet, differences in the global DNA methylation levels between gingival tissues and bone, regardless of the study group, could reflect a different epigenetic response between various tissues within the same microenvironment. Further studies are necessary to elucidate the present findings and to evaluate the role of epigenetic modifications in IF due to PIT.


Assuntos
Implantes Dentários , Peri-Implantite , Estudos Transversais , Metilação de DNA , Implantes Dentários/efeitos adversos , Falha de Equipamento , Humanos , Peri-Implantite/genética , Projetos Piloto
12.
Ann Biomed Eng ; 50(2): 222-232, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35034226

RESUMO

Divers who wish to prolong their time underwater while carrying less equipment often use devices called rebreathers, which recycle the gas expired after each breath instead of discarding it as bubbles. However, rebreathers' need to replace oxygen used by breathing creates a failure mechanism that can and frequently does lead to hypoxia, loss of consciousness, and death. The purpose of this study was to determine whether a pulse oximeter could provide a useful amount of warning time to a diver with a rebreather after failure of the oxygen addition mechanism. Twenty-eight volunteer human subjects breathed on a mixed-gas rebreather in which the oxygen addition system had been disabled. The subjects were immersed in water in four separate environmental scenarios, including cold and warm water, and monitored using pulse oximeters placed at multiple locations. Pulse oximeters placed on the forehead and clipped on the nasal ala provided a mean of 32 s (±10 s SD) of warning time to divers with falling oxygen levels, prior to risk of loss of consciousness. These devices, if configured for underwater use, could provide a practical and inexpensive alarm system to warn of impending loss of consciousness in a manner that is redundant to the rebreather.


Assuntos
Mergulho/efeitos adversos , Oxigenação Hiperbárica/efeitos adversos , Hipóxia/prevenção & controle , Monitorização Fisiológica/instrumentação , Oximetria/instrumentação , Adulto , Falha de Equipamento , Humanos , Hipóxia/etiologia , Masculino , Respiração
13.
J Neurosurg Pediatr ; 29(1): 21-30, 2022 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-34624850

RESUMO

OBJECTIVE: CSF shunt insertion is the most commonly performed neurosurgical procedure for pediatric patients with hydrocephalus, and complications including infections and catheter obstruction are common. The rate of readmission in the first 30 days after surgery has been used across surgical disciplines to determine healthcare quality. In the current study, the authors sought to assess factors associated with early shunt revision within 30 days using real-world data. METHODS: Targeted shunt data set participant user files of the National Surgical Quality Improvement Program (NSQIP) from 2016 to 2019 were queried for patients undergoing a shunt procedure. A multivariable logistic regression model was performed to assess the impact of demographics, etiologies, comorbidities, congenital malformations, and shunt adjuncts on shunt revision within 30 days, as well as shunt revision due to infection within 30 days. RESULTS: A total of 3919 primary pediatric shunt insertions were identified in the NSQIP database, with a mean (± SD) patient age of 26.3 ± 51.6 months. There were a total of 285 (7.3%) unplanned shunt revisions within 30 days, with a mean duration of 14.9 ± 8.5 days to first intervention. The most common reason for intervention was mechanical shunt failure (32.6% of revision, 2.4% overall, n = 93), followed by infection (31.2% of all interventions, 2.3% overall, n = 89) and wound disruption or CSF leak (22.1% of all interventions, 1.6% overall, n = 63). Patients younger than 6 months of age had the highest overall unplanned 30-day revision rate (8.5%, 203/2402) as well as the highest 30-day shunt infection rate (3%, 72/2402). Patients who required a revision were also more likely to have a cardiac risk factor (34.7%, n = 99, vs 29.2%, n = 1061; p = 0.048). Multivariable logistic regression revealed that compared to patients 9-18 years old, those aged 2-9 years had significantly lower odds of repeat shunt intervention (p = 0.047), while certain etiologies including congenital hydrocephalus (p = 0.0127), intraventricular hemorrhage (IVH) of prematurity (p = 0.0173), neoplasm (p = 0.0005), infection (p = 0.0004), and syndromic etiology (p = 0.0136), as well as presence of ostomy (p = 0.0095), were associated with higher odds of repeat intervention. For shunt infection, IVH of prematurity was found to be associated with significantly higher odds (p = 0.0427) of shunt infection within 30 days, while use of intraventricular antibiotics was associated with significantly lower odds (p = 0.0085). CONCLUSIONS: In this study of outcomes after pediatric shunt placement using a nationally derived cohort, early shunt failure and infection within 30 days were found to remain as considerable risks. The analysis of this national surgical quality registry confirms that, in accordance with other multicenter studies, hydrocephalus etiology, age, and presence of ostomy are important predictors of the need for early shunt revision. IVH of prematurity is associated with early infections while intraventricular antibiotics may be protective. These findings could be used for benchmarking in hospital efforts to improve quality of care for pediatric patients with hydrocephalus.


Assuntos
Derivações do Líquido Cefalorraquidiano/efeitos adversos , Derivações do Líquido Cefalorraquidiano/métodos , Hidrocefalia/cirurgia , Melhoria de Qualidade , Reoperação , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Falha de Equipamento , Feminino , Humanos , Lactente , Masculino , Readmissão do Paciente , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Fatores de Risco
14.
Heart Rhythm ; 19(3): 363-371, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34767985

RESUMO

BACKGROUND: Implantable cardioverter-defibrillator (ICD) lead monitoring diagnostic alerts facilitate the diagnosis of structural lead failure. OBJECTIVE: The purpose of this study was to prospectively study the performance of Medtronic ICD lead monitoring alerts. METHODS: A prespecified ancillary substudy, World-Wide Randomized Antibiotic Envelope Infection Prevention Trial, was conducted in patients with an ICD with all available alerts enabled. The investigators reported possible lead system events (LSEs), with or without an alert. An independent committee reviewed all data and classified events as lead failure, other LSE, or nonlead system events (NLEs). RESULTS: In 4942 patients who were followed for 19.4 ± 8.7 months, there were 124 alerts (65 LSEs, 59 NLEs) and 19 LSEs without an alert. Lead monitoring alerts had 100% sensitivity for the 48 adjudicated lead failures (95% confidence interval 92.6%-100%) and for 10 events adjudicated as either lead failure or connection issue. The positive predictive value of alerts for lead failure was 38.7% (48 of 124). For 34 pace-sense lead failures, an alert that incorporated oversensing was more sensitive than the pacing impedance threshold alert (33 patients [97.1%] vs 9 patients [26.5%]; P < .0001). However, the sensitivity was only 13.6% for lead dislodgments or perforations. Inappropriate shocks occurred in 2 patients with pace-sense lead failure (5.9%). No patient had unnecessary lead replacement for any of the NLEs. CONCLUSION: In this first real-world prospective study, lead monitoring alerts had 100% sensitivity for identifying lead failures. Although their positive predictive value was modest, no false-positive alerts resulted in an unnecessary lead replacement. For the diagnosis of pace-sense lead failure, an alert for oversensing was more sensitive than a pacing impedance threshold alert. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT02277990.


Assuntos
Desfibriladores Implantáveis , Desfibriladores Implantáveis/efeitos adversos , Impedância Elétrica , Falha de Equipamento , Humanos , Valor Preditivo dos Testes , Estudos Prospectivos
15.
Epileptic Disord ; 24(1): 151-155, 2022 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-34753709

RESUMO

Anterior thalamic deep brain stimulation is an effective therapeutic option for patients with drug-refractory focal epilepsy who are poor surgical candidates. Although the precise mechanism of action of thalamic neurostimulation is unknown, studies demonstrating increased efficacy over time have raised the possibility that therapeutic benefits are mediated by stimulation-related long-term neuroplastic changes. Adverse effects related to hardware malfunction have been previously described, and most commonly include local infection, sensory disturbances, and migration of leads. However, the withdrawal effect of sudden deep brain stimulation malfunction on seizure control is unclear. We present the case of a 21-year-old patient with intractable focal epilepsy who developed status epilepticus concurrently with unexpected deep brain stimulator battery failure, 21 months post implantation. This case demonstrates an unfamiliar possible adverse effect of anterior thalamic stimulation withdrawal and emphasizes the importance of stimulator hardware assessment in patients presenting with seizure worsening.


Assuntos
Estimulação Encefálica Profunda , Epilepsia Resistente a Medicamentos , Epilepsias Parciais , Estado Epiléptico , Núcleos Anteriores do Tálamo/fisiopatologia , Estimulação Encefálica Profunda/instrumentação , Epilepsia Resistente a Medicamentos/terapia , Epilepsias Parciais/terapia , Falha de Equipamento , Humanos , Convulsões/prevenção & controle , Estado Epiléptico/diagnóstico , Adulto Jovem
16.
Neurosurg Rev ; 45(2): 951-963, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34491478

RESUMO

Twiddler's syndrome (TS) is a hardware-related complication of deep brain stimulation which has not been well documented and is probably underreported. The objective of this study is to comprehensively describe TS by systematically reviewing the related literature. The methods include selecting the eligible studies based on the inclusion and exclusion criteria. Data about studies and TS were collected. A descriptive statistical analysis of the extracted data was performed. We found 18 eligible studies describing 23 patients with TS. The mean age of the 23 patients was 61.4 ± 15.9 years (range, 16-79 years.). The percentage of TS in the female population was 91.3% (females: 21/23). The incidence of postoperative TS was 1.4% (6 out of 437) per patient and 1.1% (8 out of 709) per extension wire. The mean time to clinical presentation was 9.9 ± 10.3 months (range, 0.5-36 months). Nineteen of the twenty-three patients presented with a rebound of previous symptoms. Twelve of the twenty-three patients had high impedance at the postoperative checkup of the DBS system. A plain X-ray indicated twisted extension wires in almost all these patients. All patients meeting the definition of postoperative device-related TS underwent revision surgery. TS is more prevalent in females. Based on the typical clinical symptoms (rebound of the previous symptoms, high impedance, and X-ray demonstration), the differential diagnosis can often be straightforward. TS should thus be taken into consideration when attempting to explain or rule out hardware malfunction. The timely recognition and proper revision of TS can prevent further serious damage.


Assuntos
Estimulação Encefálica Profunda , Adolescente , Adulto , Idoso , Estimulação Encefálica Profunda/efeitos adversos , Falha de Equipamento , Feminino , Humanos , Pessoa de Meia-Idade , Reoperação , Síndrome , Adulto Jovem
17.
Pain Med ; 23(2): 414-415, 2022 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-34698865
18.
Clin Oral Investig ; 26(1): 131-139, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34698940

RESUMO

OBJECTIVE: The objective of this study is to investigate techniques for approaching fractured instruments in the root canal and to present possible outcomes in relation to dentin thickness, fracture resistance, technique success, and clinical time. MATERIALS AND METHODS: The bibliographic research was carried out in PubMed, Cochrane, Lilacs, Web of Science, Scopus, grey literature, and manual search. Following the inclusion and exclusion criteria, the titles and abstracts of 506 articles were read. Of these, 60 articles were selected and read in full. Fourteen articles were included in this systematic review. RESULTS: The most studied technique was the ultrasonic technique and obtained good general results. The more apically the instrument is located, the more difficult it is to remove, the more dentin is removed, and the lower the fracture resistance of the tooth. When removal is not possible, the bypass technique can be performed (bypassing), and on weakened teeth or with little dental remnants, the GentleWave System technique can be used. CONCLUSION: This systematic review shows the evidence from laboratory studies that the curvature and the root third in which the fracture of instruments occurred is relevant to fracture resistance and success. The ultrasonic technique got the best results. Well-conducted clinical studies should be performed for clinical practice. CLINICAL RELEVANCE: The approach of fractured instruments in the root canal is efficient with the use of ultrasound, bypass technique, and Gentle Wave System.


Assuntos
Cavidade Pulpar , Tratamento do Canal Radicular , Cavidade Pulpar/diagnóstico por imagem , Falha de Equipamento , Humanos , Preparo de Canal Radicular , Ultrassonografia
19.
Neurosurg Rev ; 45(2): 1123-1134, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34665369

RESUMO

Deep brain stimulation (DBS) is an effective treatment of several types of neurological conditions, including Parkinson's disease, essential tremor, dystonia, and epilepsy. Despite technological progress in the past 10 years, the number of studies reporting side effects of DBS has increased, mainly due to hardware failures. This review investigated studies published between 2017 and 2021 to identify the prevalence of distinct types of hardware failures related to DBS. In total, fifteen studies were selected for the estimate of the prevalence of five distinct types of hardware failures: high impedance, fracture or failure of the lead or other parts of the implant, skin erosion and infection, lead malposition or migration, and implantable pulse generator (IPG) malfunction. The quality evaluation of the studies suggests a need to report results including populations from distinct regions of the world so that results can be generalized. The objective analysis of the prevalence of hardware failures showed that skin erosion and infection presented the highest prevalence in relation to other hardware failures. Despite the sophistication of the surgical technique of DBS over time, there is a considerable complication rate, about 7 per 100 individuals ([Formula: see text], in which CI is the confidence interval). Future research can also include correlation analysis with the aim of understanding the correlation between distinct hardware failures and variables such as gender, type of disorder, and age.


Assuntos
Estimulação Encefálica Profunda , Distonia , Estimulação Encefálica Profunda/efeitos adversos , Estimulação Encefálica Profunda/métodos , Distonia/terapia , Eletrodos Implantados/efeitos adversos , Falha de Equipamento , Humanos , Prevalência
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