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1.
Fetal Diagn Ther ; 50(2): 98-105, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36882027

RESUMEN

INTRODUCTION: The objective of this study was to assess the performance of antenatal ultrasound markers in detecting neonatal coarctation of the aorta (CoA). METHODS: We performed a retrospective study including fetuses with suspected CoA and no other cardiac abnormalities. Data obtained from antenatal ultrasounds included subjective assessment of ventricular and arterial asymmetry, appearance of aortic arch, presence of a persistent left superior vena cava, and objective Z-score measurements of the mitral, tricuspid, aortic (AV), and pulmonary (PV) valves. Performance of antenatal ultrasound markers in predicting postnatal CoA was then assessed. RESULTS: Of the 83 fetuses referred for suspected CoA, 30 (36.1%) had confirmed CoA postnatally. The sensitivity and specificity for antenatal diagnosis were 83.3% (95% confidence interval [CI]: 65.3-94.4%) and 45.3% (95% CI: 31.6-59.6%), respectively. Neonates with confirmed CoA had lower mean AV Z-scores (-2.1 vs. -1.1, p = 0.01), higher PV Z-scores (1.6 vs. 0.8, p = 0.03), and a lower AV/PV ratio (0.5 vs. 0.6, p < 0.001). Subjective assessments of symmetry and the incidence of persistent left superior vena cava did not differ between groups. Among the variables studied, the most promising marker for CoA was the AV/PV ratio (area under the receiver operating characteristics curve 0.81, 95% CI: 0.67-0.94). CONCLUSION: The use of objective sonographic markers, in particular measurements of the AV and PV, shows a trend toward an improvement in prenatal detection of CoA. Confirmation in larger studies is required.


Asunto(s)
Coartación Aórtica , Vena Cava Superior Izquierda Persistente , Recién Nacido , Embarazo , Humanos , Femenino , Coartación Aórtica/diagnóstico por imagen , Estudios Retrospectivos , Vena Cava Superior/diagnóstico por imagen , Aorta Torácica/diagnóstico por imagen , Ultrasonografía Prenatal
2.
Rev Invest Clin ; 75(4): 203-211, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37607027

RESUMEN

Background: In Latin America, epilepsy in the elderly is a neglected issue that has never been studied. The epidemiological transition has significantly altered the demographics of epilepsy, and therefore, we would like to draw attention to this topic. Objective: We require local real-world evidence, as the literature often depicts a different scenario, including pharmacological management. Methods: From 2007 to 2018, we recruited all patients with new-onset geriatric epilepsy (first seizure after the age of 60) tracked from ten Mexican hospitals, adding them to patients with similar characteristics from a previously published study. The diagnosis was confirmed in all patients by a certified neurologist, and they were also studied using a conventional electroencephalogram and imaging workup. Results: A diagnosis of new-onset geriatric epilepsy (Elderly patients was established in 100 cases. No specific cause was found in 26% of patients, while 42% had a stroke and 10% had neurocysticercosis (NCC). Monotherapy was the choice in 83 patients, and phenytoin was the most used drug (50%), followed by carbamazepine (25%). Conclusion: NCC remains a frequent cause of new-onset geriatric epilepsy. This distribution is not seen in the literature, mainly representing patients from wealthy economies. In our setting, financial constraints influence the choice of the drug, and newer antiepileptic drugs should be made more affordable to this population with economic and physical frailty.


Asunto(s)
Epilepsia , Fragilidad , Anciano , Humanos , Electroencefalografía , Epilepsia/tratamiento farmacológico , Epilepsia/epidemiología , Epilepsia/etiología , América Latina/epidemiología , México/epidemiología
3.
Eur Neurol ; 85(4): 308-312, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35134804

RESUMEN

BACKGROUND: Given the high contribution of stroke to the global burden of disease, there is a need for good-quality information on Web platforms such as Wikipedia. AIMS: This study aimed to describe the quality of the Wikipedia articles on stroke written in different languages. METHODS: We studied the world's 30 most spoken languages. With the DISCERN score, we evaluated the quality of the information within the Wikipedia articles. Three investigators assessed each of the texts translated to English. We also registered the word count, the number of references, and if the text referred to the emergency status of stroke, cues to suspect a stroke, and allusions to endovascular treatment. RESULTS: There is a Wikipedia article for stroke in 23 out of the 30 languages. The mean DISCERN score was 35 29.9 ± 9.2. Overall quality ranged from 3/5 in 26.1% to 1/5 in 17.4%. Word count had a mean of 36 3,145.8 ± 3,048.9 words, and the texts included a mean of 43.1 ± 57.3 references; 69.6% of the articles referred to stroke as a medical emergency, 52.2% included awareness symptoms, and 34.8% included endovascular management among the stroke treatments. Three pages included steroids as part of the stroke treatment. The DISCERN score was not correlated with the number of speakers, but it was positively correlated with the number of references (r = 0.90, p < 0.001) and the number of words (r = 0.78, p < 0.001) in the articles. CONCLUSION: The analyzed Wikipedia articles do not contain relevant and up-to-date information to the general population. Further, the content varies widely across the different languages and is missing for some of them. The missing versions disproportionally affect millions of potential information seekers in undeveloped countries.


Asunto(s)
Lenguaje , Accidente Cerebrovascular , Humanos , Accidente Cerebrovascular/terapia
4.
Neurosurg Focus ; 53(1): E10, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35901718

RESUMEN

OBJECTIVE: Sylvian fissure (SF) arteriovenous malformations (AVMs) are among the most challenging vascular lesions amenable to neurosurgical treatment and account for 10% of all locations. As radiosurgery and endovascular techniques are increasingly involved in multimodal management protocols, the role of microsurgery needs to be reassessed as a stand-alone technique. The aim of this study was to show that total excision can be achieved with reasonable levels of morbidity and mortality in a real-world setting from a specialized high-volume center. METHODS: Forty-three patients with SF AVMs were identified from a series of 577 AVM patients treated microsurgically over a 22-year period. The mean patient age was 33.07 years (range 15-60 years), and there were 22 male and 21 female patients. The mode of presentation was headache in 51.2%, hemorrhage in 34.9%, seizures in 30.2%, and steal phenomenon in 9.3%. The authors analyzed the anatomical basis and angiographic characteristics of such lesions. RESULTS: In the preoperative period, 83.7% of the patients had a modified Rankin Scale (mRS) score of 0-2, and 16.3% had an mRS score of 3-5. After a 12-month follow-up, 95.3% of patients had an mRS score of 0-2, and 4.7% had a score of 3-6. The difference between pre- and postoperative scores was not statistically significant. SF AVMs have several particular features: 1) They produce angiographic steal of the anterior cerebral artery. 2) The nidus is fed by only one of the main trunks of the middle cerebral artery (MCA). 3) Participation of deep perforators is uncommon. 4) They have two or more early draining veins showing their fistulous nature. 5) Preoperative embolization and radiosurgery have a low rate of permanent cure. CONCLUSIONS: These AVMs represent a surgical challenge due to their proximity to critical structures such as the MCA, insula, internal capsule, and speech and memory functions in the dominant hemisphere. Essential key points are the wide opening of the SF and proper differentiation between feeders and normal vessels. Although this location can seem daunting, SF AVMs carry no additional surgical risk if adequately managed.


Asunto(s)
Malformaciones Arteriovenosas Intracraneales , Radiocirugia , Adolescente , Adulto , Embolización Terapéutica/métodos , Femenino , Humanos , Malformaciones Arteriovenosas Intracraneales/diagnóstico por imagen , Malformaciones Arteriovenosas Intracraneales/cirugía , Masculino , Microcirugia/métodos , Persona de Mediana Edad , Estudios Retrospectivos , Resultado del Tratamiento , Adulto Joven
5.
J Clin Monit Comput ; 36(6): 1827-1832, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-35235105

RESUMEN

PURPOSE: Intraoperative Neurophysiological Monitoring (IOMM) has been used worldwide in the attempt to reduce postsurgical neurological deficits, however, most of the publications are from developed countries. There is a global bibliometric analysis of IOMN in spinal surgery, however, the contribution of Latin America (LA) is not mentioned. The aim of this study is to describe scientific productivity, patterns of publications, and thematic trends of IONM in LA. METHODS: Data was collected using Scopus database, by searching scientific articles with LA affiliation, using 18 keywords. We excluded duplicates, not original articles, reviews, surveys, and articles not related to humans. Articles were analyzed and classified as follows: year of publication, language of the original document, journals metrics, country, IONM modality, etiology, location of surgery, medical specialties, and outcome. Descriptive statistics were used. RESULTS: We obtained 8,699 scientific articles of which 41 scientific articles from 7 LA countries were selected. Mexico has the highest number of publications. In most countries, supratentorial location showed the highest frequency. Somatosensory evoked potentials and electrocorticography were the most performed modalities. Neurosurgery was the most involved specialty of our 41 scientific articles, and 95.1% of these publications concluded that IONM is useful to guide surgical procedures. CONCLUSIONS: Mexico and Brazil have led IONM publications in LA. The lower reference in publications of visual evoked potentials and brainstem auditory evoked potentials IONM modalities, could be considered in the future to boost tailored research in LA.


Asunto(s)
Monitorización Neurofisiológica Intraoperatoria , Humanos , Monitorización Neurofisiológica Intraoperatoria/métodos , América Latina , Potenciales Evocados Visuales , Estudios Retrospectivos , Bibliometría
6.
Curr Psychol ; : 1-14, 2022 Dec 19.
Artículo en Inglés | MEDLINE | ID: mdl-36570054

RESUMEN

Previous studies have found a robust positive relationship between trait self-control and life satisfaction mediated by both positive and negative affect, but the simultaneous inclusion of the effect of apprehension of being evaluated by others is less commonly investigated. The present study aimed to examine (1) whether the relationship between self-control and life satisfaction was mediated by positive affect and negative affect in parallel, and (2) whether fear of negative evaluation would moderate the strengths of the mediational pathways. With a sample of two hundred fifty university students in Hong Kong, mediational analysis (ME) revealed that both positive affect and negative affect were the mediators between self-control and life satisfaction. Subsequent moderated mediation analysis (moME) supported the moderating role of fear of negative evaluation on the mediational pathway through positive affect, but not on the pathway through negative affect. In particular, higher scores on fear of negative evaluation would attenuate the strength of association between self-control and positive affect. Therefore, to optimize university students' well-being and mental health functioning, treatment modalities should target both behavioral (i.e., self-control) and socio-emotional (i.e., apprehension of being evaluated critically from others) aspects.

7.
Epilepsy Behav ; 115: 107676, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33360176

RESUMEN

The Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez" (INNN) is one of the main institutions in Latin America treating epilepsy; and bibliometric analysis has an increasing role in analyzing the literature, acting as a Google Maps of medical research. We tracked the scientific output in Scopus and the impact of the institution from its foundation to July 2020 in the field of epilepsy. We roughly separated this group by clinical and experimental approach, identifying core journals, type of article, increase with time, and number of citations. A total of 228 papers, from a total of 3,034 produced by the INNN in that period, were found. Additionally, we identified that neurocysticercosis, pharmacology, genetics, and proteins involved in epilepsy were the most investigated topics. Also, there is a sustained growth in the number of papers per year since 1985. The number of authors per paper ranges from one to 15, and neuroscience journals are the preferred target of researchers, with a predilection for "Epilepsy and Behavior".


Asunto(s)
Epilepsia , Neurocisticercosis , Bibliometría , Epilepsia/terapia , Humanos , América Latina , México
8.
Intern Med J ; 51(7): 1151-1155, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34143563

RESUMEN

The COVID-19 pandemic has resulted in the rapid implementation of telehealth. However, little is known about its suitability for the older population. We evaluated the use of telehealth in geriatric outpatient clinics. Half of the appointments needed to be re-scheduled due to language barrier, poor connection, hard of hearing and inability to perform assessments. Advantages included time efficiency and ability to visualise the home. Preference for the future was initial appointments as face-face, but reviews as either telehealth or face-face.


Asunto(s)
COVID-19 , Telemedicina , Anciano , Instituciones de Atención Ambulatoria , Humanos , Pandemias , SARS-CoV-2
9.
Palliat Med ; 30(7): 634-41, 2016 07.
Artículo en Inglés | MEDLINE | ID: mdl-26867937

RESUMEN

BACKGROUND: Terminally ill patients at the end-of-life do transit between care settings due to their complex care needs. Problems of care fragmentation could result in poor quality of care. AIM: We aimed to evaluate the impact of an integrated hospice home care programme on acute care service usage and on the share of home deaths. SETTINGS/PARTICIPANTS: The retrospective study cohort comprised patients who were diagnosed with cancer, had an expected prognosis of 1 year or less, and were referred to a home hospice. The intervention group comprised deceased patients enrolled in the integrated hospice home care programme between September 2012 and June 2014. The historical comparison group comprised deceased patients who were referred to other home hospices between January 2007 and January 2011. RESULTS: There were 321 cases and 593 comparator subjects. Relative to the comparator group, the share of hospital deaths was significantly lower for programme participants (12.1% versus 42.7%). After adjusting for differences at baseline, the intervention group had statistically significantly lower emergency department visits at 30 days (incidence rate ratio: 0.38; 95% confidence interval: 0.31-0.47), 60 days (incidence rate ratio: 0.61; 95% confidence interval: 0.54-0.69) and 90 days (incidence rate ratio: 0.69; 95% confidence interval: 0.62-0.77) prior to death. Similar results held for the number of hospitalisations at 30 days (incidence rate ratio: 0.48; 95% confidence interval: 0.40-0.58), 60 days (incidence rate ratio: 0.71; 95% confidence interval: 0.62-0.82) and 90 days (incidence rate ratio: 0.77; 95% confidence interval: 0.68-0.88) prior to death. CONCLUSION: Our results demonstrated that by integrating services between acute care and home hospice care, a reduction in acute care service usage could occur.


Asunto(s)
Prestación Integrada de Atención de Salud/organización & administración , Servicios de Atención de Salud a Domicilio/organización & administración , Cuidados Paliativos al Final de la Vida/organización & administración , Hospitales para Enfermos Terminales/organización & administración , Neoplasias/enfermería , Cuidados Paliativos/organización & administración , Cuidado Terminal/organización & administración , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
11.
Bol Asoc Med P R ; 106(1): 17-24, 2014.
Artículo en Español | MEDLINE | ID: mdl-24791359

RESUMEN

OBJECTIVE: Describe the outcomes of patients diagnosed with indirect carotid-cavernous fistula treated by endovascular methods. DESIGN: A retrospective case series. PARTICIPANTS: Twelve patients with dural cavernous sinus fistula with important ophthalmologic involvement admitted and treated at the National Institute of Neurology and Neurosurgery between February 1990 and January 2005. INTERVENTION: Patients were managed by endovascular embolization for all fistulas. OUTCOME MEASURES: Angiographic controls to 24 hours and at 6 and 12 months were performed. RESULTS: 67 % were female and 33 % male. The mean age was 44 years. 67 % were spontaneous and 33% of traumatic origin. All patients had eye involvement with proptosis (92%) and involvement of the oculomotor nerve (67%). Headache and pulsatile tinnitus were not frequent ophthalmologic data. All were diagnosed by cerebral angiography, 33 % were type C, type D 67 %, and none of the type B classification Barrow. In 17 % of cases the distal arterial robbery showed severe. Predominance of anterior and superior venous drainage in 83 % and 42 % of cases occurred respectively. The surgical approach was arterial in 84% of cases, while in 17 % venous through the superior ophthalmic vein. Cyanoacrylate embolization material was used in 58 % of the cases, as it was associated with the use of removable ball with polyvinyl alcohol particles in 16 % in of venous approach cases. 17% detachable coils were utilized. There were no complications. After angiographic controls at 24 hours 100% occlusion was seen in patients treated with cyanoacrylate (58%) (p = 0.03). The remaining 42% were prescribed maneuver of manual compression. At 12-months angiography all patients had 100% occlusion of the carotid-cavernous fistula. CONCLSUIONS: This is the world's second largest series with indirect carotid-cavernous fistulas treated after trauma. 100 % of cases were cured with the use of a transarterial-controlled approach and N-butyl-cyanoacrylate after long-term observation.


Asunto(s)
Arteria Carótida Interna , Seno Cavernoso , Malformaciones Vasculares del Sistema Nervioso Central/terapia , Embolización Terapéutica/métodos , Procedimientos Endovasculares/métodos , Adulto , Angioplastia de Balón/métodos , Arteria Carótida Externa , Malformaciones Vasculares del Sistema Nervioso Central/diagnóstico por imagen , Malformaciones Vasculares del Sistema Nervioso Central/etiología , Angiografía Cerebral , Traumatismos Craneocerebrales/complicaciones , Enbucrilato/administración & dosificación , Enbucrilato/uso terapéutico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Alcohol Polivinílico/administración & dosificación , Alcohol Polivinílico/uso terapéutico , Estudios Retrospectivos , Evaluación de Síntomas , Adhesivos Tisulares/administración & dosificación , Adhesivos Tisulares/uso terapéutico , Resultado del Tratamiento , Tungsteno/administración & dosificación , Tungsteno/uso terapéutico
12.
Bol Asoc Med P R ; 106(1): 33-8, 2014.
Artículo en Español | MEDLINE | ID: mdl-24791362

RESUMEN

Sensorineural deafness and vertigo have different causes among them immunological, vascular and infectious. Vascular causes of sensorineural hearing loss are unusual and among them are the vertebral artery aneurysms. Knowledge by neurosurgeons, neurointerventional and otolaryngologists aneurysms involving the development of sensorineural hearing loss is critical to establishing and determining a targeted therapeutics. We report the case of an adult handled with endovascular techniques and review the current literature of similar cases.


Asunto(s)
Procedimientos Endovasculares/métodos , Pérdida Auditiva Sensorineural/etiología , Pérdida Auditiva Unilateral/etiología , Aneurisma Intracraneal/cirugía , Arteria Vertebral/cirugía , Vértigo/etiología , Angioplastia Coronaria con Balón , Fármacos Cardiovasculares/uso terapéutico , Angiografía Cerebral , Terapia Combinada , Humanos , Imagenología Tridimensional , Aneurisma Intracraneal/complicaciones , Aneurisma Intracraneal/diagnóstico , Angiografía por Resonancia Magnética , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Imagen Multimodal , Infarto del Miocardio/complicaciones , Infarto del Miocardio/tratamiento farmacológico , Infarto del Miocardio/terapia , Factores de Riesgo , Fumar/efectos adversos , Stents , Acúfeno/etiología
13.
World Neurosurg ; 184: 303-309.e8, 2024 04.
Artículo en Inglés | MEDLINE | ID: mdl-38280629

RESUMEN

Significant progress has been made in Stereotactic and Functional Neurosurgery (SFN) within Latin America (LATAM), which can be attributed to the rapid advancements in technology and a growing pool of expertise. However, despite the growing importance of this field, a comprehensive scientometric analysis of LATAM contributions is still lacking. The aim of this study is to shed light on the top-cited articles in the field authored by LATAM researchers. A search of the Scopus database was performed using specific keywords in the field of SFN to retrieve the top 100 most cited articles. Only those with LATAM affiliation for the first or corresponding position were included. The 100 top-cited articles were published between 1978 and 2019 across 47 different journals. On average, these articles had a citation count of 97.2 citations. A total of 635 LATAM authors were identified, including 145 women. Notably, the 5 most productive and impactful authors were Velasco F., Velasco M., Velasco A.L., Cukiert A., and Jiménez F. Within the field of SFN, epilepsy accounted for 47% of the documents, while the remaining 53% encompassed research on psychiatric diseases, movement disorders, translational research, pain, and electrical mapping. Epilepsia emerged as the journal with the highest number of articles. Mexico and Brazil contributed the most articles, with the University of São Paulo and the Hospital General de Mexico being the most productive institutions. This scientometric analysis highlights the impactful research contributions from the region, identifies influential authors and institutions, and emphasizes the necessity for additional collaboration and exploration.


Asunto(s)
Neurocirugia , Humanos , Femenino , América Latina , Bibliometría , Procedimientos Neuroquirúrgicos , México
14.
J Med Case Rep ; 18(1): 266, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38822435

RESUMEN

BACKGROUND: Sigmoid sinus wall dehiscence can lead to pulsatile tinnitus with a significant decrease in quality of life, occasionally leading to psychiatric disorders. Several surgical and endovascular procedures have been described for resolving dehiscence. Within endovascular procedures, the sagittal sinus approach could be a technical alternative for tracking and accurate stent positioning within the sigmoid sinus when the jugular bulb anatomy is unfavorable. CASE PRESENTATION: A retrospective case series of three patients with pulsatile tinnitus due to sigmoid sinus wall dehiscence without intracranial hypertension was reviewed from January 2018 to January 2022. From the participants enrolled, the median age was 50.3 years (range 43-63), with 67% self-identifying as female and 33% as male. They self-identified as Hispanic. Sigmoid sinus dehiscence was diagnosed using angiotomography, and contralateral transverse sinus stenosis was observed in all patients. Patients underwent surgery via a navigated endovascular sagittal sinus approach for sigmoid sinus stenting. No neurological complications were associated with the procedure. Pulsatile tinnitus improved after the procedure in all patients. CONCLUSIONS: Superior sagittal sinus resection for sigmoid sinus wall stenting is a safe and effective technique. Pulsatile tinnitus due to sigmoid sinus wall dehiscence could be treated using the endovascular resurfacing stenting technique. However, further research is needed to evaluate the potential benefit of contralateral stenting for removing sinus dehiscence when venous stenosis is detected. However, resurfacing sigmoid sinus wall dehiscence results in symptomatic improvement.


Asunto(s)
Procedimientos Endovasculares , Stents , Acúfeno , Humanos , Femenino , Masculino , Acúfeno/cirugía , Acúfeno/etiología , Adulto , Persona de Mediana Edad , Procedimientos Endovasculares/métodos , Estudios Retrospectivos , Senos Craneales/cirugía , Seno Sagital Superior/cirugía , Resultado del Tratamiento , Constricción Patológica/cirugía
15.
J Psychiatr Res ; 170: 90-110, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38134724

RESUMEN

Neurological manifestations have been widely reported in adults with COVID-19, yet the extent of involvement among the pediatric population is currently poorly characterized. The objective of our systematic review is to evaluate the association of SARS-CoV-2 infection with neurological symptoms and neuroimaging manifestations in the pediatric population. A literature search of Cochrane Library; EBSCO CINAHL; Global Index Medicus; OVID AMED, Embase, Medline, PsychINFO; and Scopus was conducted in accordance with the Peer Review of Electronic Search Strategies form (October 1, 2019 to March 15, 2022). Studies were included if they reported (1) COVID-19-associated neurological symptoms and neuroimaging manifestations in individuals aged <18 years with a confirmed, first SARS-CoV-2 infection and were (2) peer-reviewed. Full-text reviews of 222 retrieved articles were performed, along with subsequent reference searches. A total of 843 no-duplicate records were retrieved. Of the 19 identified studies, there were ten retrospective observational studies, seven case series, one case report, and one prospective cohort study. A total of 6985 individuals were included, where 12.8% (n = 892) of hospitalized patients experienced neurocognitive impairments which includes: 1) neurological symptoms (n = 294 of 892, 33.0%), 2) neurological syndromes and neuroimaging abnormalities (n = 223 of 892, 25.0%), and 3) other phenomena (n = 233 of 892, 26.1%). Based on pediatric-specific cohorts, children experienced more drowsiness (7.3% vs. 1.3%) and muscle weakness (7.3% vs. 6.3%) as opposed to adolescents. Agitation or irritability was observed more in children (7.3%) than infants (1.3%). Our findings revealed a high prevalence of immune-mediated patterns of disease among COVID-19 positive pediatric patients with neurocognitive abnormalities.


Asunto(s)
COVID-19 , Adolescente , Adulto , Niño , Humanos , Lactante , COVID-19/complicaciones , Prevalencia , Estudios Prospectivos , Estudios Retrospectivos , SARS-CoV-2
16.
bioRxiv ; 2023 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-37461576

RESUMEN

A fundamental tenet of animal behavior is that decision-making involves multiple 'controllers.' Initially, behavior is goal-directed, driven by desired outcomes, shifting later to habitual control, where cues trigger actions independent of motivational state. Clark Hull's question from 1943 still resonates today: "Is this transition abrupt, or is it gradual and progressive?"1 Despite a century-long belief in gradual transitions, this question remains unanswered2,3 as current methods cannot disambiguate goal-directed versus habitual control in real-time. Here, we introduce a novel 'volitional engagement' approach, motivating animals by palatability rather than biological need. Offering less palatable water in the home cage4,5 reduced motivation to 'work' for plain water in an auditory discrimination task when compared to water-restricted animals. Using quantitative behavior and computational modeling6, we found that palatability-driven animals learned to discriminate as quickly as water-restricted animals but exhibited state-like fluctuations when responding to the reward-predicting cue-reflecting goal-directed behavior. These fluctuations spontaneously and abruptly ceased after thousands of trials, with animals now always responding to the reward-predicting cue. In line with habitual control, post-transition behavior displayed motor automaticity, decreased error sensitivity (assessed via pupillary responses), and insensitivity to outcome devaluation. Bilateral lesions of the habit-related dorsolateral striatum7 blocked transitions to habitual behavior. Thus, 'volitional engagement' reveals spontaneous and abrupt transitions from goal-directed to habitual behavior, suggesting the involvement of a higher-level process that arbitrates between the two.

17.
Palliat Care Soc Pract ; 17: 26323524231196311, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37719387

RESUMEN

Background: Low awareness about palliative care among the global public and healthcare communities has been frequently cited as a persistent barrier to palliative care acceptance. Given that knowledge shapes attitudes and encourages receptiveness, it is critical to examine factors that influence the motivation to increase knowledge. Health information-seeking from individuals and media has been identified as a key factor, as the process of accessing and interpreting information to enhance knowledge has been shown to positively impact health behaviours. Objective: Our study aimed to uncover public sentiments toward palliative care in Singapore. A conceptual framework was additionally developed to investigate the relationship between information-seeking preferences and knowledge, attitudes, receptiveness of palliative care, and comfort in death discussion. Design and Methods: A nationwide survey was conducted in Singapore with 1226 respondents aged 21 years and above. The data were analysed through a series of hierarchical multiple regression to examine the hypothesised role of information-seeking sources as predictors. Results: Our findings revealed that 53% of our participants were aware of palliative care and about 48% were receptive to receiving the care for themselves. It further showed that while information-seeking from individuals and media increases knowledge, attitudes and receptiveness to palliative care, the comfort level in death conversations was found to be positively associated only with individuals, especially healthcare professionals. Conclusion: Our findings highlight the need for public health authorities to recognize people's deep-seated beliefs and superstitions surrounding the concept of mortality. As Asians view death as a taboo topic that is to be avoided at all costs, it is necessary to adopt multipronged communication programs to address those fears. It is only when the larger communicative environment is driven by the media to encourage public discourse, and concurrently supported by timely interventions to trigger crucial conversations on end-of-life issues between individuals, their loved ones, and the healthcare team, can we advance awareness and benefits of palliative care among the public in Singapore.


A nationwide survey to understand public sentiments and the extent that information-seeking preferences can increase knowledge, attitudes, receptiveness of palliative care, and comfort level in death discussion in Singapore Low awareness of palliative care is a barrier that persistently hinders palliative care acceptance among populations in developing and developed countries. As knowledge shapes attitudes and encourages receptiveness, it is vital that researchers uncover factors that influence the motivation to increase knowledge. Health information-seeking is a factor that deserves greater attention in palliative care research because the process of seeking out information on health concerns from other people or the media can greatly increase individuals' knowledge. As such, this nationwide survey involving 1226 participants was carried out in Singapore to understand the public sentiments toward palliative care. It further statistically analyzed if information-seeking (from individuals and the media) will increase knowledge, attitudes, receptiveness toward palliative care, and comfort level in death discussion. Our findings indicated that 53% of our participants were aware of palliative care and about 48% were receptive to receiving the care for themselves. Furthermore, while information-seeking from individuals and media increases knowledge, attitudes, and receptiveness to palliative care, people are only comfortable to engage in death discussion with individuals, especially healthcare professionals. Exposure to media alone is not enough to encourage individuals to want to talk about end-of-life issues including palliative care. As Asians view death as a taboo topic, it is important for public health authorities to recognize people's deep-seated beliefs and superstitions surrounding the concept of mortality. A multipronged communication program is therefore needed to address these fears. It is only when the larger communicative environment driven by the media to encourage public discourse, and concurrently supported by timely interventions to trigger crucial conversations on end-of-life issues between individuals, their loved ones, and the healthcare team, can we advance awareness and benefits of palliative care among the public in Singapore.

18.
BMJ Support Palliat Care ; 13(1): 77-85, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32434925

RESUMEN

OBJECTIVES: To determine the economic benefit of an integrated home-based palliative care programme for advanced dementia (Programme Dignity), evaluation is required. This study aimed to estimate Programme Dignity's average monthly cost from a provider's perspective; and compare healthcare utilisation and costs of programme patients with controls, accounting for enrolment duration. METHODS: This was a retrospective cohort study. Home-dwelling patients with advanced dementia (stage 7 on the functional assessment staging in Alzheimer's disease) with a history of pneumonia, albumin <35 g/L or tube-feeding and known to be deceased were analysed (Programme Dignity=184, controls=139). One-year programme operational costs were apportioned on a per patient-month basis. Cumulative healthcare utilisation and costs were examined at 1, 3 and 6 months look-back from death. Between-group comparisons used Poisson, zero-inflated Poisson regressions and generalised linear models. RESULTS: The average monthly programme cost was SGD$1311 (SGD-Pounds exchange rate: 0.481) per patient. Fully enrolled programme patients were less likely to visit the emergency department (incidence rate ratios (IRRs): 1 month=0.56; 3 months=0.19; 6 months=0.10; all p<0.001), be admitted to hospital (IRRs: 1 month=0.60; 3 months=0.19; 6 months=0.15; all p<0.001), had a lower cumulative length of stay (IRRs: 1 month=0.78; 3 months=0.49; 6 months=0.24; all p<0.001) and incurred lesser healthcare utilisation costs (ß-coefficients: 1 month=0.70; 3 months=0.40; 6 months=0.43; all p<0.01) at all time-points examined. CONCLUSION: Programme Dignity for advanced dementia reduces healthcare utilisation and costs. If scalable, it may benefit more patients wishing to remain at home at the end-of-life, allowing for a potentially sustainable care model to cope with rapid population ageing. It contributes to the evidence base of advanced dementia palliative care and informs healthcare policy making. Future studies should estimate informal caregiving costs for comprehensive economic evaluation.


Asunto(s)
Demencia , Servicios de Atención de Salud a Domicilio , Humanos , Estudios Retrospectivos , Cuidados Paliativos , Aceptación de la Atención de Salud , Demencia/terapia
19.
Healthcare (Basel) ; 11(12)2023 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-37372844

RESUMEN

BACKGROUND: This study employed bibliometric analysis to ascertain the research focus areas among a group of Mexican physicians affiliated with the Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (ISSSTE). ISSSTE, a healthcare institution catering to a diverse range of diseases, offers a distinctive perspective on the investigated specialties within the realm of health. The primary objective was to identify knowledge gaps in medical care disciplines through a comprehensive examination of scholarly publications. METHODS: We retrieved Scopus papers affiliated with "ISSSTE" and saved them as .CSV files. Subsequently, we employed VOSviewer, biblioshiny, and bibliometrix for bibliometric analysis. This enabled us to identify prominent institutions, prolific authors, highly cited researchers, and their respective affiliations. RESULTS: Our analysis identified 2063 publications; the specialty internal medicine accounted for the greatest proportion with 831 publications. Original papers accounted for 82% of the total, with 52% of them being written in Spanish. The majority of scientific output, 92%, originated from Mexico City. The annual production has steadily increased since 2010, peaking in 2021 with over 200 publications. However, papers on prevalent conditions, such as metabolic syndrome, received limited citations, and the L0 index (percentage of uncited items) for all papers is close to 60%. Scopus mislabeled one affiliation, and some cases show a low paper-to-author ratio of 0.5 Discussion: Additional concerns, such as honorary authorship due to excessive authors per paper, and the underlying causes of low citation rates in Mexican publications, warrant further examination. Moreover, our research emphasizes the urgency of bolstering research and development funding, which was consistently below 0.5% of GDP for the past four decades, falling short of legal mandates and international benchmarks. We endorse the establishment of robust research collectives in Latin America to address these challenges, foster regional scientific output, and transition from knowledge consumers to knowledge producers, thereby reducing dependence on foreign technology.

20.
Res Sq ; 2023 Mar 09.
Artículo en Inglés | MEDLINE | ID: mdl-36945594

RESUMEN

Background: Neurological manifestations have been widely reported in adults with COVID-19, yet the extent of involvement among the pediatric population is currently poorly characterized. The objective of our systematic review is to evaluate the association of SARS-CoV-2 infection with neurological symptoms and neuroimaging manifestations in the pediatric population. Methods: A literature search of Cochrane Library; EBSCO CINAHL; Global Index Medicus; OVID AMED, Embase, Medline, PsychINFO; and Scopus was conducted in accordance with the Peer Review of Electronic Search Strategies form (October 1, 2019 to March 15, 2022). Studies were included if they reported (1) COVID-19-associated neurological symptoms and neuroimaging manifestations in individuals aged < 18 years with a confirmed, first SARS-CoV-2 infection and were (2) peer-reviewed. Full-text reviews of 222 retrieved articles were performed, along with subsequent reference searches. Results: A total of 843 nonduplicate records were retrieved. Of the 19 identified studies, there were ten retrospective observational studies, seven case series, one case report, and one prospective cohort study. A total of 6,985 individuals were included, where 12.8% of hospitalized patients experienced neurocognitive impairments: MIS-C (24.2%), neuroinflammation (10.1%), and encephalopathy (8.1%) were the most common disorders; headaches (16.8%) and seizures (3.8%) were the most common symptoms. Based on pediatric-specific cohorts, children experienced more drowsiness (7.3% vs. 1.3%) and muscle weakness (7.3% vs. 6.3%) as opposed to adolescents. Agitation or irritability was observed more in children (7.3%) than infants (1.3%). Conclusion: Our findings revealed a high prevalence of immune-mediated patterns of disease among COVID-19 positive pediatric patients with neurocognitive abnormalities.

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