[Reversible cerebral vasoconstriction syndrome. Recurrence of thunderclap headaches after treatment with corticosteroids]. / Síndrome de vasoconstricción cerebral reversible. Recurrencia de cefaleas en trueno tras tratamiento con corticoides.

INTRODUCTION: Reversible cerebral vasoconstriction syndrome is a clinicoradiological entity with a self-limiting course that manifests with recurrent episodes of thunderclap headache, and is associated with certain triggers. Recurrence is very rare, and the pathophysiology is thought to be related to altered autoregulation of the cerebrovascular tone. We present a clinical case that raises questions about possible recurrences and triggers. CASE REPORT: A 44-year-old woman with a history of multiple sclerosis treated with interferon beta-1b who had four episodes of thunderclap headache while resting, after completing a course of corticosteroids due to a flare-up of optic neuritis. Three years earlier, the patient had presented several episodes of explosive-onset headache during a self-limited period of one month, only occurring during sexual intercourse. In the year prior to our assessment, she had suffered three thunderclap headaches with similar characteristics, but they were triggered only by intense physical exercise. She had not consulted a physician about these events. A cranial computed tomography scan was performed after the administration of contrast media and a cerebral arteriography, which were consistent with cerebral vasoconstriction syndrome, and its reversibility was confirmed three months later. CONCLUSIONS: Reversible cerebral vasoconstriction syndrome shares a phenotypic expression with primary exertion headaches. It is associated with drugs with vasoactive effects, including interferons, and corticosteroids are associated with a worse prognosis, and such their administration should be avoided.

TITLE: Síndrome de vasoconstricción cerebral reversible. Recurrencia de cefaleas en trueno tras tratamiento con corticoides.Introducción. El síndrome de vasoconstricción cerebral reversible es una entidad clinicorradiológica de curso autolimitado que se manifiesta con episodios de cefalea en trueno recurrentes y que se asocia a determinados desencadenantes. La recidiva es muy poco frecuente y la fisiopatología se cree que está en relación con la alteración de la autorregulación del tono vascular cerebral. Presentamos un caso clínico que plantea cuestiones sobre posibles recurrencias y desencadenantes. Caso clínico. Mujer de 44 años con antecedente de esclerosis múltiple en tratamiento con interferón beta-1b que consultó por cuatro episodios de cefalea en trueno en reposo, tras finalizar un ciclo de corticoides por un brote de neuritis óptica. Tres años antes, la paciente había presentado varios episodios de cefalea de inicio explosivo durante un período autolimitado de un mes, únicamente producidos en el contexto de relaciones sexuales. El año previo a nuestra valoración padeció en tres ocasiones cefalea en trueno de características similares, pero exclusivamente desencadenadas con el ejercicio físico intenso. No había consultado por estos eventos. Se realizó una tomografía computarizada craneal tras la administración de contraste y una arteriografía cerebral, que fueron compatibles con síndrome de vasoconstricción cerebral, y se confirmó su reversibilidad tres meses después. Conclusiones. El síndrome de vasoconstricción cerebral reversible comparte expresión fenotípica con el grupo de cefaleas primarias por esfuerzo físico. Se asocia a fármacos con efectos vasoactivos, entre los que se encuentran los interferones, y los corticoides se asocian a un peor pronóstico, por lo que es importante evitar su administración.

Guidelines for the management of coagulation disorders in patients with cirrhosis.

Coagulation management in the patient with cirrhosis has undergone a significant transformation since the beginning of this century, with the concept of a rebalancing between procoagulant and anticoagulant factors. The paradigm that patients with cirrhosis have a greater bleeding tendency has changed, as a result of this rebalancing. In addition, it has brought to light the presence of complications related to thrombotic events in this group of patients. These guidelines detail aspects related to pathophysiologic mechanisms that intervene in the maintenance of hemostasis in the patient with cirrhosis, the relevance of portal hypertension, mechanical factors for the development of bleeding, modifications in the hepatic synthesis of coagulation factors, and the changes in the reticuloendothelial system in acute hepatic decompensation and acute-on-chronic liver failure. They address new aspects related to the hemorrhagic complications in patients with cirrhosis, considering the risk for bleeding during diagnostic or therapeutic procedures, as well as the usefulness of different tools for diagnosing coagulation and recommendations on the pharmacologic treatment and blood-product transfusion in the context of hemorrhage. These guidelines also update the knowledge regarding hypercoagulability in the patient with cirrhosis, as well as the efficacy and safety of treatment with the different anticoagulation regimens. Lastly, they provide recommendations on coagulation management in the context of acute-on-chronic liver failure, acute liver decompensation, and specific aspects related to the patient undergoing liver transplantation.

Endoscope channel drying, storage, and conditions after reprocessing: How safe are they in clinical practice?

INTRODUCTION AND AIMS: Adequate drying and proper storage of flexible endoscopes are essential for maintaining quality in their reprocessing. The aim of the present study was to evaluate the drying stages, storage, and channel conditions of endoscopes through borescope inspection. MATERIAL AND METHODS: The personnel responsible for endoscope reprocessing were interviewed. Storage conditions at 10 endoscopy facilities were inspected and an internal examination of the channels and ports of the stored equipment was carried out, utilizing a borescope. A total of 74 stored endoscope channels were evaluated. RESULTS: Only 10% of the facilities inspected utilized transport cases for storage and only 10% had rooms exclusively used for storage. Sixty percent of the facilities did not perform any shelf-life control. All the channels evaluated were scratched and fluids were present on 69% of them. CONCLUSIONS: Endoscope reprocessing can be improved through the implementation of drying and storage control and validation tools, as well as the use of borescopes and periodic clinical audits.

Diagnosis and treatment of disorders of intracranial pressure: consensus statement of the Spanish Society of Neurology's Headache Study Group.

Primary intracranial pressure disorders include idiopathic intracranial hypertension and spontaneous intracranial hypotension. Remarkable advances have been made in the diagnosis and treatment of these 2entities in recent years. Therefore, the Spanish Society of Neurology's Headache Study Group (GECSEN) deemed it necessary to prepare this consensus statement, including diagnostic and therapeutic algorithms to facilitate and improve the management of these disorders in clinical practice. This document was created by a committee of experts belonging to GECSEN, and is based on a systematic review of the literature, incorporating the experience of the participants, and establishes practical recommendations with levels of evidence and grades of recommendation.

Treatment of thyroglossal cyst using Koempel's technique: initial experience. / Tratamiento del quiste tirogloso mediante técnica de Koempel. Experiencia inicial.

INTRODUCTION: In spite of being inaccurate in terms of suprahyoid dissection, Sistrunk's procedure is the gold-standard technique in the treatment of thyroglossal cyst. Since it was first described in 2014, the modifications introduced by Koempel have allowed for a more reproducible suprahyoid approach. We present our initial experience with this technique. METHODS: A retrospective study of patients with thyroglossal cyst undergoing Koempel's technique in our institution from 2021 to 2022 was carried out. Demographic, clinical, and histological data was collected. RESULTS: In the study period, 5 patients -3 girls and 2 boys- underwent surgery. Median age and weight were 5 years (2-6) and 16 kg (14-25), respectively. All patients had suffered from previous infections, with 60% having cutaneous fistulization. In 2 patients, surgery was indicated following Sistrunk's procedure as a result of recurrence. Median operating time was 77 minutes (57-110), with the genioglossal muscle plane being identified in the 5 patients. No immediate complications were recorded, and diagnosis of thyroglossal cyst was histologically confirmed in all cases. One of the formerly recurrent patients had recurrence following surgery, but it was subclinical and incidentally diagnosed at control ultrasonography. The remaining patients had no recurrences after a median 8-month (1-12) follow-up period. CONCLUSIONS: Koempel's technique allows for a safe and reproducible approach of the suprahyoid segment. It is an attractive option in complicated cases as a result of previous infection or recurrence.

INTRODUCCION: La intervención de Sistrunk es el gold-standard en el tratamiento del quiste tirogloso pese a su imprecisión en cuanto a la disección suprahioidea. Tras su descripción en 2014, las modificaciones introducidas por Koempel, han permitido un abordaje suprahioideo más reproducible. Presentamos nuestra experiencia inicial con esta técnica. METODOS: Estudio retrospectivo de los pacientes con quiste tirogloso intervenidos mediante técnica de Koempel en nuestro centro en el periodo 2021-2022, recogiéndose datos demográficos, clínicos e histológicos. RESULTADOS: Durante el periodo de estudio se intervinieron 5 pacientes (3 mujeres/2 varones), con una mediana de edad y peso de 5 años (2-6) y 16 kg (14-25) respectivamente. Todos los casos habían sufrido infecciones previas presentando fistulización cutánea el 60%. En 2 de los pacientes se indicó la cirugía por recidiva tras intervención de Sistrunk. La mediana del tiempo quirúrgico fue de 77minutos (57-110) identificándose el plano del músculo geniogloso en los 5 pacientes. No hubo complicaciones inmediatas y el diagnóstico de quiste tirogloso se confirmó histológicamente en todos los casos. Uno de los pacientes del grupo con recidiva previa, presentó recidiva tras la intervención, siendo esta subclínica y diagnosticada incidentalmente tras ecografía de control. El resto de los pacientes no presentó ninguna recurrencia tras un seguimiento mediana de 8 meses (1-12). CONCLUSIONES: La técnica de Koempel permite un abordaje seguro y reproducible del segmento suprahioideo siendo una opción atractiva en casos complicados por infección o recidiva previa.

Salt-tolerance mechanisms in quinoa: Is glycinebetaine the missing piece of the puzzle?

Salinization of arable land has been progressively increasing, which, along with the effects of climate change, poses a serious risk to food production. Quinoa is a halophyte species that grows and is productive in highly saline soils. This study addresses the mechanisms of response and adaptation to high salinity. We show that the differential distribution of sodium in plants depends on the variety, observing that varieties such as Pandela Rosada limit the passage transit of sodium to the aerial part of the plant, a mechanism that seems to be regulated by sodium transporters such as HKT1s or SOS1. Like other halophytes of the Amaranthaceae family, quinoa plants have salt glands (bladder cells), which have been reported to play an important role in salt tolerance. However, our study shows that the contribution of bladder glands to salt accumulation is rather low. The 1H-NMR metabolome study of quinoa subjected to salt stress showed important modifications in the contents of amino acids, sugars, organic acids, and quaternary ammonium compounds (glycinebetaine). The compound with a higher presence was glycinebetaine, which makes up 6% of the leaf dry matter under saline conditions. Our findings suggest that glycinebetaine can act as an osmolyte and/or osmoprotectant, facilitating plant development under high saline ambient.

Treatment of calcific tendinopathy of the rotator cuff with ultrasound-guided puncture and aspiration.

OBJECTIVE: Calcific tendinopathy of the rotator cuff is a common condition caused by the deposition of calcium crystals in the tendons of the rotator cuff. This study aimed to analyze the effectiveness of ultrasound-guided puncture and aspiration in calcific tendinopathy of the should in 86 patients treated at our center and to determine the factors associated with poor prognosis after this treatment. MATERIAL AND METHODS: This retrospective descriptive study included 86 patients with calcific tendinopathy of the rotator cuff treated with ultrasound-guided puncture and aspiration between 2015 and 2019 for whom clinical and radiological variables were collected 1, 3, 6, and 12 months after the procedure. RESULTS: One year after treatment, 81.4% patients showed clinical improvement and 96.5% showed radiological improvement. Complications were observed in 34.9%; all complications were mild. CONCLUSIONS: Ultrasound-guided puncture and aspiration is an effective treatment for calcific tendinopathy of the shoulder, resulting in a high rate of clinical and radiological improvement and a low rate of minor complications. This technique has additional advantages, such as interaction with the patient and the lack of ionizing radiation.

Posttransplantation diabetes mellitus after liver transplant and the impact of family history of diabetes in a Mexican cohort.

INTRODUCTION AND AIMS: Posttransplantation diabetes mellitus (PTDM) is a serious long-term complication that has a negative impact on graft and patient survival. The purpose of the present study was to describe the incidence of PTDM in a Mexican cohort and evaluate its association with a previous family history of diabetes (FHD). METHODS: A retrospective single-center cohort study was conducted on patients undergoing liver transplantation (LT). The primary outcome was time from LT to PTDM. The diagnosis of PTDM was established using the ADA criteria. A mediation analysis that used adjusted Cox regression models and considered pretransplant prediabetes a mediator was performed, to determine the total effect and direct effect of FHD on PTDM. RESULTS: A total of 152 patients were included, with a median follow-up time of 41 months; 19.2% (n = 29) had pretransplant diabetes. During the follow-up time, 15% of patients developed PTDM (n = 23), with an incidence rate of 4.71 cases/100 person-years. PTDM was significantly higher in patients with FHD, compared with those with no FHD (8.72 cases/100 person-years vs 2.04 cases/100 person-years, respectively; p = 0.001). The adjusted hazard ratio of PTDM for FHD was 4.14 (95% CI 1.60-10.7), p = 0.005) and 3.48 (95% CI 1.35-9.01, p = 0.010), when further controlled for pretransplant prediabetes. CONCLUSION: The occurrence of PTDM was similar to that reported in most international studies. As with type 2 diabetes, family history plays an important role in the development of PTDM, even after accounting for pretransplant prediabetes. Patients with FHD should undergo a stricter metabolic program.

Urgent laparoscopic cholecystectomy as a result of acute calculous cholecystitis in Pediatrics. / Colecistectomía laparoscópica urgente por colecistitis aguda litiásica en Pediatría.

INTRODUCTION: In spite of the increase in the prevalence of cholelithiasis in the last decades, no recommendations regarding the best treatment of acute calculous cholecystitis (AC) in Pediatrics have been developed. CLINICAL CASE: 4-year-old, 20kg male patient with no significant history referred to our institution as a result of abdominal sepsis. The blood count showed leukocytosis, with normal hemoglobin and bilirubin levels, and a normal liver function. The abdominal ultrasonography revealed cholelithiasis, gallbladder hydrops, and an inflammatory process compatible with appendicular plastron. In the diagnostic laparoscopy, the appendix was macroscopically normal, and acute cholecystitis was observed. Given the patient's situation, and in cooperation with the General Surgery Department, laparoscopic cholecystectomy was carried out. The patient recovered uneventfully on hospitalization day 5 under piperacillin-tazobactam treatment. DISCUSSION: There are no recommendations regarding AC treatment in children. In septic patients, cooperation between general and pediatric surgeons allows urgent cholecystectomy to be considered as a safe option.

INTRODUCCION: Pese al aumento en la prevalencia de colelitiasis durante las últimas décadas, no se han desarrollado recomendaciones sobre el mejor tratamiento de la colecistitis aguda litiásica (CA) en Pediatría. CASO CLINICO: Paciente varón de 4 años y 20 kg de peso sin antecedentes de interés, que acude derivado por sepsis de origen abdominal. Analíticamente destaca leucocitosis con hemoglobina, función hepática y bilirrubina normales. La ecografía abdominal muestra colelitiasis, hidrops vesicular y proceso inflamatorio compatible con plastrón apendicular. En laparoscopia diagnóstica se observa apéndice macroscópicamente normal y colecistitis aguda. Ante la situación del paciente se realiza, conjuntamente con Cirugía General, colecistectomía laparoscópica. El paciente se recupera sin incidencias tras 5 días de ingreso bajo cobertura con piperacilina-tazobactam. COMENTARIOS: No existen recomendaciones sobre el tratamiento de la CA en niños. En los pacientes sépticos, la colaboración entre cirujanos pediátricos y cirujanos generales permite contemplar la colecistectomía urgente como una opción segura.

The MIGREX study: Prevalence and risk factors of sexual dysfunction among migraine patients.

BACKGROUND: Migraine attacks have a high impact on daily activities. There is limited research on the burden of migraine on sexual functioning. OBJECTIVE: To determine the prevalence of sexual dysfunction in patients with migraine and its relationship with migraine features and comorbidities. METHOD: This is a cross-sectional study. We included migraine patients between 18 and 60 years-old from 8 Headache Clinics in Spain. We recorded demographic data and migraine features. Patients fulfilled a survey including comorbidities, Arizona Sexual Experiences Scale, Hospital Anxiety and Depression Scale and a questionnaire about migraine impact on sexual activity. A K-nearest neighbor supervised learning algorithm was used to identify differences between migraine patients with and without sexual dysfunction. RESULTS: We included 306 patients (85.6% women, mean age 42.3±11.1 years). A 41.8% of participants had sexual dysfunction. Sexual dysfunction was associated with being female (OR [95% CI]: 2.42 [1.17-5.00]; p<0.001), being older than 46.5 years (4.04 [2.48-6.59]; p<0.001), having chronic migraine (2.31 [1.41-3.77]; p=0.001), using preventive medication (2.45 [1.35-4.45]; p=0.004), analgesic overusing (3.51 [2.03-6.07]; p<0.001), menopause (4.18 [2.43-7.17]; p<0.001) and anxiety (2.90 [1.80-4.67]; p<0.001) and depression (6.14 [3.18-11.83]; p<0.001). However, only female gender, age, menopause and depression were the statistically significant variables selected in the model to classify migraine patients with or without sexual dysfunction (Accuracy [95% CI]: 0.75 (0.62-0.85), Kappa: 0.48, p=0.005). CONCLUSIONS: Sexual dysfunction is frequent in migraine patients visited in a headache clinic. However, migraine characteristics or use of preventive medication are not directly associated with sexual dysfunction. Instead, risk factors for sexual dysfunction were female gender, higher age, menopause and depression.

Atomistic simulations of calcium aluminosilicate interfaced with liquid water.

The dissolution behavior of calcium aluminosilicate based glass fibers, such as stone wool fibers, is an important consideration in mineral wool applications for both the longevity of the mineral wool products in humid environments and limiting the health impacts of released and inhaled fibers from the mineral wool product. Balancing these factors requires a molecular-level understanding of calcium aluminosilicate glass dissolution mechanisms, details that are challenging to resolve with experiment alone. Molecular dynamics simulations are a powerful tool capable of providing complementary atomistic insights regarding dissolution; however, they require force fields capable of describing not-only the calcium aluminosilicate surface structure but also the interactions relevant to dissolution phenomena. Here, a new force field capable of describing amorphous calcium aluminosilicate surfaces interfaced with liquid water is developed by fitting parameters to experimental and first principles simulation data of the relevant oxide-water interfaces, including ab initio molecular dynamics simulations performed for this work for the wüstite and periclase interfaces. Simulations of a calcium aluminosilicate surface interfaced with liquid water were used to test this new force field, suggesting moderate ingress of water into the porous glass interface. This design of the force field opens a new avenue for the further study of calcium and network-modifier dissolution phenomena in calcium aluminosilicate glasses and stone wool fibers at liquid water interfaces.

[Narcolepsy secondary to a rare fatal disease]. / Narcolepsia secundaria a enfermedad rara y fatal.

INTRODUCTION: ROHHAD (rapid-onset obesity with hypothalamic dysfunction, hypoventilation and autonomic dysregulation) is a rare disease, with only about two hundred cases reported to date, that starts in previously healthy children. The first sign is usually obesity, followed by hypothalamic dysfunction and sleep-disordered breathing, which rapidly progresses until the death of the patient. ROHHAD with narcolepsy is even rarer, with only two cases described so far. CASE REPORT: We report the case of a boy who showed signs of obesity and sleepiness since he was 5 years old. At the age of 7, he suffered two tonic-clonic seizures and, over the next four years, displayed signs and symptoms of significant hypothalamic dysfunction; after multiple tests, he was then diagnosed with ROHHAD. Despite receiving a large number of treatments, the patient died at the age of 11. CONCLUSION: The pathophysiology of this disease needs to be clarified in order to investigate effective treatments in the future.

TITLE: Narcolepsia secundaria a enfermedad rara y fatal.Introducción. La ROHHAD (rapid-onset obesity with hypothalamic dysfunction, hypoventilation and autonomic dysregulation) es una enfermedad rara, con escasamente dos centenas de casos documentados hasta la fecha, que se inicia en niños previamente sanos y en la que el primer signo suele ser la obesidad, seguido de una disfunción hipotalámica y trastornos respiratorios del sueño, que progresan rápidamente hasta el fallecimiento del paciente. La ROHHAD con narcolepsia es aún más infrecuente, con sólo dos casos descritos hasta el momento. Caso clínico. Niño que, desde los 5 años, presenta señales de obesidad y somnolencia. A los 7 años sufre dos crisis tonicoclónicas y, durante los cuatro años siguientes, muestra síntomas y signos propios de una disfunción hipotalámica importante, por lo que, tras múltiples pruebas, se le diagnosticó ROHHAD. A pesar de los múltiples tratamientos recibidos, el paciente falleció a los 11 años de edad. Conclusión. Es necesario aclarar la fisiopatología de esta enfermedad para poder investigar futuros tratamientos que resulten eficaces.

Evaluation of the burden of migraine on the partner's lifestyle.

BACKGROUND: Despite the number of research studies regarding the individual burden of migraine, few studies have examined its impact on the patients' partners. We aim to assess migraine effects on the patients' partners on sentimental relationship, children relationship, friendship, and work, as well as the caregiver burden, anxiety and/or depression. METHODS: A cross-sectional observational study was conducted through an online survey of partners of patients with migraine followed-up in 5 Headache Units. Questions about the 4 areas of interest and 2 scales (Hospital Anxiety and Depression Scale and Zarit scale) were included. Scores were compared against the population prevalence. RESULTS: One hundred and fifty-five answers were analysed. Among the patient's partners 135/155 (87.1%) were men, with a mean age of 45.6 ± 10.1 years. Migraine's main effects on partners were observed in the sentimental relationship and items concerning children and friendships, with a minor impact at work. Partners showed a moderate burden (12/155 = 7.7% [4.1%-13.1%]), and a higher moderate-severe anxiety rate (23/155 = 14.8% [9.6%-21.4%]), and similar depression rate (5/155 = 3.2% [1.1%-7.3%]) compared to the National Health Survey. CONCLUSIONS: The burden of migraine impacts the partners' personal relationship, childcare, friendship and work. Moreover, certain migraine partners showed a moderate burden according to Zarit scale and higher anxiety levels than the Spanish population.

[Impact of days elapsed from the onset of symptoms to hospitalization in COVID-19 in-hospital mortality: Time matters]. / Impacto de los días transcurridos desde el inicio de los síntomas hasta la hospitalización en la mortalidad hospitalaria por COVID-19: el tiempo importa.

Background: COVID-19 shows different clinical and pathophysiological stages over time. Theeffect of days elapsed from the onset of symptoms (DEOS) to hospitalization on COVID-19prognostic factors remains uncertain. We analyzed the impact on mortality of DEOS to hospital-ization and how other independent prognostic factors perform when taking this time elapsedinto account. Methods: This retrospective, nationwide cohort study, included patients with confirmed COVID-19 from February 20th and May 6th, 2020. The data was collected in a standardized online datacapture registry. Univariate and multivariate COX-regression were performed in the generalcohort and the final multivariate model was subjected to a sensitivity analysis in an earlypresenting (EP; < 5 DEOS) and late presenting (LP; ≥5 DEOS) group. Results: 7915 COVID-19 patients were included in the analysis, 2324 in the EP and 5591 in theLP group. DEOS to hospitalization was an independent prognostic factor of in-hospital mortalityin the multivariate Cox regression model along with other 9 variables. Each DEOS incrementaccounted for a 4.3% mortality risk reduction (HR 0.957; 95% CI 0.93---0.98). Regarding variationsin other mortality predictors in the sensitivity analysis, the Charlson Comorbidity Index onlyremained significant in the EP group while D-dimer only remained significant in the LP group. Conclusion: When caring for COVID-19 patients, DEOS to hospitalization should be consideredas their need for early hospitalization confers a higher risk of mortality. Different prognosticfactors vary over time and should be studied within a fixed timeframe of the disease.

Current vision on diagnosis and comprehensive care in hepatic encephalopathy.

The first clinical guidelines on hepatic encephalopathy were published in 2009. Almost 14 years since that first publication, numerous advances in the field of diagnosis, treatment, and special condition care have been made. Therefore, as an initiative of the Asociación Mexicana de Gastroenterología A.C., we present a current view of those aspects. The manuscript described herein was formulated by 24 experts that participated in six working groups, analyzing, discussing, and summarizing the following topics: Definition of hepatic encephalopathy; recommended classifications; epidemiologic panorama, worldwide and in Mexico; diagnostic tools; conditions that merit a differential diagnosis; treatment; and primary and secondary prophylaxis. Likewise, these guidelines emphasize the management of certain special conditions, such as hepatic encephalopathy in acute liver failure and acute-on-chronic liver failure, as well as specific care in patients with hepatic encephalopathy, such as the use of medications and types of sedation, describing those that are permitted or recommended, and those that are not.

Diagnosis and treatment of trigeminal neuralgia: Consensus statement from the Spanish Society of Neurology's Headache Study Group.

INTRODUCTION: Trigeminal neuralgia (TN) is a chronic neuropathic pain disorder affecting one or more branches of the trigeminal nerve. Despite its relatively low global prevalence, TN is an important healthcare problem both in neurology departments and in emergency departments due to the difficulty of diagnosing and treating the condition and its significant impact on patients' quality of life. For all these reasons, the Spanish Society of Neurology's Headache Study Group has developed a consensus statement on the management of TN. DEVELOPMENT: This document was drafted by a panel of neurologists specialising in headache, who used the terminology of the International Headache Society. We analysed the published scientific evidence on the diagnosis and treatment of TN and establish practical recommendations with levels of evidence. CONCLUSIONS: The diagnosis of TN is based on clinical criteria. Pain attributed to a lesion or disease of the trigeminal nerve is divided into TN and painful trigeminal neuropathy, according to the International Classification of Headache Disorders, third edition. TN is further subclassified into classical, secondary, or idiopathic, according to aetiology. Brain MRI is recommended in patients with clinical diagnosis of TN, in order to rule out secondary causes. In MRI studies to detect neurovascular compression, FIESTA, DRIVE, or CISS sequences are recommended. Pharmacological treatment is the initial choice in all patients. In selected cases with drug-resistant pain or poor tolerance, surgery should be considered.

Study about the Manchester Triage System subtriage in patients that visited the Emergency Department due to headache.

INTRODUCTION: Headache is a frequent cause of consultation; it is important to detect patients with secondary headache, particularly high-risk secondary headache. Such systems as the Manchester Triage System (MTS) are used for this purpose. This study aims to evaluate the frequency of undertriage in patients attending the emergency department due to headache. MATERIAL AND METHODS: We studied a series of consecutive patients who came to the emergency department with headache and presenting some warning sign, defined as the presence of signs leading the physician to request an emergency neuroimaging study and/or assessment by the on-call neurologist. The reference diagnosis was established by neurologists. We evaluated the MTS triage level assigned and the presence of warning signs that may imply a higher level than that assigned. RESULTS: We registered a total of 1120 emergency department visits due to headache, and 248 patients (22.8%) were eligible for study inclusion. Secondary headache was diagnosed in 126 cases (50.8% of the sample; 11.2% of the total), with 60 cases presenting high-risk secondary headache (24.2%; 5.4%). According to the MTS, 2 patients were classified as immediate (0.8%), 26 as very urgent (10.5%), 147 as urgent (59.3%), 68 as normal (27.4%), and 5 as not urgent (2%). The percentage of patients undertriaged was 85.1% in the very urgent classification level and 23.3% in the urgent level. CONCLUSION: During the study period, at least one in 10 patients attending the emergency department due to headache had secondary headache; one in 20 had high-risk secondary headache. The MTS undertriaged most patients with warning signs suggesting a potential emergency.

Impact of days elapsed from the onset of symptoms to hospitalization in COVID-19 in-hospital mortality: time matters.

BACKGROUND: COVID-19 shows different clinical and pathophysiological stages over time. The effect of days elapsed from the onset of symptoms (DEOS) to hospitalization on COVID-19 prognostic factors remains uncertain. We analyzed the impact on mortality of DEOS to hospitalization and how other independent prognostic factors perform when taking this time elapsed into account. METHODS: This retrospective, nationwide cohort study, included patients with confirmed COVID-19 from February 20th and May 6th, 2020. The data was collected in a standardized online data capture registry. Univariate and multivariate COX-regression were performed in the general cohort and the final multivariate model was subjected to a sensitivity analysis in an early presenting (EP; <5 DEOS) and late presenting (LP; ≥5 DEOS) group. RESULTS: 7915 COVID-19 patients were included in the analysis, 2324 in the EP and 5591 in the LP group. DEOS to hospitalization was an independent prognostic factor of in-hospital mortality in the multivariate Cox regression model along with other 9 variables. Each DEOS increment accounted for a 4.3% mortality risk reduction (HR 0.957; 95% CI 0.93-0.98). Regarding variations in other mortality predictors in the sensitivity analysis, the Charlson Comorbidity Index only remained significant in the EP group while D-dimer only remained significant in the LP group. CONCLUSION: When caring for COVID-19 patients, DEOS to hospitalization should be considered as their need for early hospitalization confers a higher risk of mortality. Different prognostic factors vary over time and should be studied within a fixed timeframe of the disease.