OBJECTIVE: Chronic subdural hematoma (CSDH) is one of the most common pathologies in our daily practice. The standard treatment is the evacuation making a burr-hole and placement of a subdural drainage, which has shown to decrease its recurrence. However, this procedure can entail risks such as parenchymal damage, infection, or the onset of seizures, prompting the consideration of subgaleal drainage as an alternative. Our objective is to compare the use of subdural and subgaleal drainage in a cohort of patients undergoing intervention for CSDH, as well as to analyze the differences in complication rates and recurrence between the two groups.
METHODS: A retrospective analytical observational study was conducted, analyzing 152 patients diagnosed with CSDH who underwent intervention at our center from January 2020 to April 2022. Patients in whom drainage was not placed were excluded. In all patients, a burr-hole was performed and the type of drainage was chosen by the neurosurgeon.
RESULTS: Out of the 152 patients, subdural drainage was placed in 80 cases (52.63%), while subgaleal drainage was used in 72 cases (47.37%). There were no significant differences in the recurrence rate (30% in the subdural drainage group vs. 20.83% in the subgaleal drainage group; P = .134) or in the complication rate (7.5% in the subdural drainage group vs. 5.5% in the subgaleal drainage group; P = .749).
CONCLUSIONS: Subgaleal drainage shows similar clinical outcomes with a recurrence and complication rate comparable to subdural drainage, suggesting it as a safe and effective alternative to subdural drainage in the treatment of CSDH.

UNASSIGNED: Juvenile nasoangiofibroma (JNA) is a rare, highly vascular, locally aggressive benign tumor which affects male adolescents. It accounts for 0.05-0.5% of head and neck tumors with recurrence rates of 6-50%. The internal maxillary artery is the main source of JNA.
UNASSIGNED: To evaluate the relationship between vascular supply as a factor associated with JNA recurrence.
UNASSIGNED: An cohort study was performed in patients diagnosed with NAJ. We collected demographic data, vascular contribution by angiography and tomography results to classify them according to their stage (Radkowski classification), and if they received adjuvant radiotherapy. Post-surgical CT scans were requested to evaluate recurrence and if any of the variables were related to this.
UNASSIGNED: A sample of 14 male patients who met the inclusion criteria was collected. The mean age was 14.71 ± 4.08 years. According to Radkowski classification, stage IA, IIA and IIC were reported in 14.3%, IIB and IIB in 7.1% and IIIA in 42.9%. 42.9% had recurrence and out of these, 66.7% had irrigation of the right carotid system and the same percentage of patients received radiotherapy as adjuvant treatment.
UNASSIGNED: There is a tendency in tumor recurrence associated with vascular contribution from the right carotid system, as well as with patients who received radiotherapy.
UNASSIGNED: el nasoangiofibroma juvenil (NAJ) es un tumor benigno, raro, altamente vascular y localmente agresivo que afecta a adolescentes del sexo masculino. Representa de 0.05 a 0.5% de los tumores de cabeza y cuello con tasas de recurencia del 6-50%. La arteria maxilar interna se considera el principal aporte de los NAJ.
UNASSIGNED: evaluar la relación entre el aporte vascular como factor asociado con la recurrencia de NAJ.
UNASSIGNED: se realizó un estudio de cohorte en pacientes con diagnóstico de NAJ. Se recabaron datos demográficos, el aporte vascular por resultados de angiografía y de tomografía para clasificarlos según su estadio (clasificación de Radkowski), y si recibieron radioterapia adyuvante. Se solicitaron tomografías postquirúrgicas para evaluar la recurrencia y si alguna de las variables tiene relación con esta.
UNASSIGNED: se recolectó una muestra de 14 pacientes del sexo masculino que cumplieron con los criterios de inclusión. La edad promedio fue de 14.71 ± 4.08 años. Según la clasificación de Radkowski, se reportó un estadio IA, IIA y IIC en 14.3%, IIB y IIB en un 7.1% y IIIA en 42.9%. El 42.9% tuvo recurrencia y de estos, el 66.7% tenía irrigación del sistema carotídeo derecho y recibieron radioterapia como tratamiento adyuvante el mismo porcentaje de pacientes.
UNASSIGNED: existe una tendencia en la recurrencia del tumor asociada al aporte vascular proveniente del sistema carotídeo derecho y también a los pacientes que recibieron radioterapia.

OBJECTIVE: To describe the baseline characteristics, clinical presentation, imaging tests and outcomes, and identify potential prognostic factors in a cohort of patients diagnosed with cerebral venous thrombosis (CVT).
METHODS: This retrospective, single-center, observational study included adult patients diagnosed with CVT from January 2016 to December 2020. The variables were reviewed using electronic medical records.
RESULTS: A total of 35 patients were included, with a median age at diagnosis of 50.3 (+/- 17.8) years, and the majority being women (74.4%). Nearly 95% of the patients presented at least one risk factor for the development of CVT. Heparins were used for the acute phase in 97.1% of cases, with 75% of those being low molecular weight heparins.During the first two weeks, a compound event (death, intensive care unit admission, National Institute of Health Stroke Scale at discharge >3, CVT recurrence, major bleeding, or the presence of complications) occurred in 28.6% of patients (10 patients).Over the mean follow-up period of 3.3 years, 14.3% of the patients died (with only one death attributed to CVT), one patient experienced major bleeding, and no patients had a recurrence of CVT.
CONCLUSIONS: In our cohort, CVT predominantly affected young women with at least one risk factor for its development. The presence of edema on CT and corticosteroid treatment were associated with a poor short-term prognosis. However, we observed a favorable long-term prognosis in terms of mortality, recurrence, and bleeding.

BACKGROUND: Campylobacter spp. is the leading cause of bacterial enteritis in industrialized countries, but the literature about its recurrence is scarce. The objective of this study is to analyze a case series of recurrent campylobacteriosis in adult and pediatric patients.
METHODS: During a two-year period, the demographic, clinical and microbiological data were collected retrospectively from patients who met the clinical criteria of recurrent Campylobacter spp. gastroenteritis. Enteropathogens were identified by a multiplex-PCR gastrointestinal pathogens panel. When Campylobacter spp. was detected, the stool sample was cultured in specific medium and tested for antibiotic susceptibility.
RESULTS: Twenty-four (2.03%) out of 1180 patients with Campylobacter spp. positive-PCR met the inclusion criteria. Thirteen patients suffered from underlying diseases, and 11 had no known risk factors but they were all pediatric patients. From the 24 patients were documented 70 episodes. One patient had two episodes of bacteremia. Coinfection/co-detection with other enteropathogens was found in 10 patients being Giardia intestinalis the most frequent. Twelve (22.6%) out of 53 isolates were resistant to macrolides. One patient had two isolates of multi-drug resistant C. coli, only susceptible to gentamicin.
CONCLUSIONS: The results suggest the presence of underlying diseases in most adult patients with recurrent Campylobacter spp. infections, particularly primary immunodeficiency. Most of the pediatric patients with recurrent campylobacteriosis lack of known risk factors. Concomitant detection with other enteropathogens was common. The resistance to macrolides was much higher as compared with previous reported rates.

We performed a meta-analysis to evaluate the effect of en-bloc transurethral resection vs. conventional transurethral resection for primary non-muscle invasive bladder cancer.
A systematic literature search up to January 2022 was done and 28 studies included 3714 primary non-muscle invasive bladder cancer subjects at the start of the study; 1870 of them were en-bloc transurethral resection, and 1844 were conventional transurethral resection for primary non-muscle invasive bladder cancer. We calculated the odds-ratio (OR) and mean-difference (MD) with 95% confidence-intervals (CIs) to evaluate the effect of en-bloc transurethral resection compared with conventional transurethral resection for primary non-muscle invasive bladder cancer by the dichotomous or continuous methods with random or fixed-effects models.
En-bloc transurethral resection had significantly lower twenty-four-month recurrence (OR: 0.63; 95%CI: 0.50-0.78; p < 0.001), catheterization-time (MD: -0.66; 95%CI: -1.02-[-0.29]; p < 0.001), length of hospital stay (MD: -0.95; 95%CI: -1.55-[-0.34]; p = 0.002), postoperative bladder irrigation duration (MD: -6.06; 95%CI: -9.45-[-2.67]; p < 0.001), obturator nerve reflex (OR: 0.08; 95%CI: 0.02-0.34; p = 0.03), and bladder perforation (OR: 0.14; 95%CI: 0.06-0.36: p < 0.001) and no significant difference in the 12-month-recurrence (OR: 0.79; 95%CI: 0.61-1.04; p = 0.09), the operation time (MD: 0.67; 95%CI: -1.92 to 3.25; p = 0.61), and urethral stricture (OR: 0.46; 95%CI: 0.14-1.47; p = 0.0.19) compared with conventional transurethral resection for primary non-muscle invasive bladder cancer subjects.
En-bloc transurethral resection had a significantly lower twenty-four-month recurrence, catheterization time, length of hospital stay, postoperative bladder irrigation duration, obturator nerve reflex, bladder perforation, and no significant difference in the twelve-month recurrence, operation time, and urethral stricture compared with conventional transurethral resection for primary non-muscle invasive bladder cancer subjects. Further studies are required.

To evaluate the incidence and course of urinary tract infections (UTI) in patients with multiple sclerosis (MS) and their relationship to the method of bladder evacuation.
Patients with neurogenic bladder dysfunction due to MS (n=111) were enrolled in the study. During one-year follow-up, clinical examination with urine culture was performed every 4 months or whenever symptoms occurred. The control group included patients with symptomatic UTI, without neurological or autoimmune disease. Incidence of symptomatic and asymptomatic bacteriuria, the effect of urine drainage on UTI incidence, and the effect of antibiotics were statistically evaluated.
54 MS patients completed the protocol. The mean incidence of symptomatic and asymptomatic bacteriuria in the MS group was 12.5% and 29.6%, respectively. A decreasing trend in the incidence of symptomatic, and an increasing trend in the incidence of asymptomatic bacteriuria was observed. Eradication of UTI in symptomatic MS patients was significantly lower than in controls (37.75% vs. 92.93%, P<0.05). Causative agents significantly differed in both groups (P=0.0005). The hypothesis that the incidence of UTIs in MS patients is independent of the method of bladder evacuation was not rejected (P>0.99 at visit 0, 1 and 3, P=0.078 at visit 2).
There is a significant difference between the causative agents of UTI in both groups. Eradication of bacteriuria in symptomatic MS patients is difficult when compared to the normal population. We have insufficient evidence to confirm the relationship between the incidence of UTI and the method of bladder evacuation.

OBJECTIVE: There is a lack of studies on the natural history of the initial stages of schizophrenia in Colombia. This study aims to assess functionality in the first five years after the diagnosis of schizophrenia.
METHODS: Naturalistic longitudinal study of 50 patients with early schizophrenia evaluated between 2011 and 2014. Data about demographic background, symptoms, introspection, treatment and adverse reactions were collected in all patients every 3 months for at least 3-5 years. Functionality was measured with the Global Assessment of Functioning (GAF) and Personal and Social Performance (PSP) scales.
RESULTS: Patients were followed up for a mean of 174±62.5 weeks and showed moderate difficulties in overall functioning. This functioning was modified by polypharmacy, degree of introspection, changes in antipsychotic regimens, and the number of episodes, relapses and hospitalisations.
CONCLUSIONS: The results suggest that functional outcomes seem to be related to the use of polypharmacy, degree of insight, changes in antipsychotic regimens, and number of episodes, relapses and hospitalisations during the first years of schizophrenia.

Angiosarcoma is an infrequent tumor among sarcomas, especially presenting as a primary tumor within the central nervous system, which can lead to a rapid neurological deterioration and death in few months. We present a 41-year old man with a right frontal enhancing hemorrhagic lesion. Surgery was performed with histopathological findings suggesting a primary central nervous system angiosarcoma. He was discharged uneventfully and received adjuvant chemotherapy and radiotherapy. At 5 months, the follow-up MRI showed two lesions with an acute subdural hematoma, suggesting a relapse. Surgery was again conducted finding tumoral membranes attached to the internal layer of the duramater around the right hemisphere. The patient died a few days later due to the recurrence of the subdural hematoma. This case report illustrates a rare and lethal complication of an unusual tumor. The literature reviewed shows that gross-total resection with adjuvant radiotherapy seems to be the best treatment of choice.

BACKGROUND: Embolic stroke of undetermined source (ESUS) accounts for 25% of all cerebral infarcts; only 30% are associated with paroxysmal atrial fibrillation (AF). Various biochemical, electrocardiographic, and echocardiographic findings may suggest left atrial damage and increased risk of embolism in the absence of clinically documented AF or atrial flutter. In this review, we analyse the available evidence on atrial cardiopathy or atrial disease, its involvement in ESUS, and its identification through electrocardiographic, echocardiographic, and serum markers and its possible therapeutic implications.
METHODS: A systematic search was conducted on MEDLINE (PubMed) using the following MeSH terms: MeSH [ESUS]+[atrial cardiopathy]+[atrial fibrillation]+[interatrial block]+[treatment]. We selected what we considered to be the most useful original prospective or retrospective studies and systematic reviews. We then read the full texts of the articles and checked the references cited in each article. We analyse epidemiological and demographic variables of patients with ESUS, as well as recent evidence related to presentation and prognosis and factors associated with recurrence and mortality. We review the contribution of atrial cardiopathy diagnosis prior to the detection of AF and the clinical, electrocardiographic, and echocardiographic variables and the biochemical markers associated with its development and its potential contribution to cerebral embolism.
CONCLUSIONS: The systematic search of biochemical and electrocardiographic, and echocardiographic alterations can be useful to identify ESUS patients at higher risk of recurrence.

BACKGROUND: Incisional hernia (HI), in open and laparoscopic surgery, is a very frequent complication. HI located in the umbilical region are called M3. The main aim of this study is to compare HI produced by the placement of an umbilical laparoscopic trocar (M3T) with those located in M3 in open surgery (M3O) in terms of basal characteristics, complications and recurrences; and secondarily the identification of risk factors.
METHODS: Cross-sectional observational study based on the national prospective registry EVEREG during the period of July 2012-June 2018. The main variables were recurrences and postoperative complications. Both groups (M3T and M3O) were compared. Multiple logistic regression was performed to identify the risk factors of the entire cohort.
RESULTS: 882 had a follow-up time longer than 12 months. M3O group presented superior ASA-Class, more complex HI and previous repair. It also presented a higher recurrence rate at 12 and 24 months (8.6% vs. 2.5%; P < 0,0001 and 9.3% vs. 2.9%; P < 0.0001) and higher postoperative complications rate (21.9% vs. 14.6 %; P = 0.02). Previous repair, intervention length and associated procedures requirement were identified as risk factors for postoperative complications. Absence of a specialist present during surgery, previous repair, and the absence of complications were identified as risk factors for recurrence. In the PSM analysis no differences were detected in of complications and recurrences.
CONCLUSIONS: HI M3O is more complex than M3T. The complexity is not related to the origin of the hernia but to its characteristics and those of the patient.