Early exposure to anesthesiology: a summer preceptorship program for first-year medical students.

Introduction: A 4-week summer preceptorship offered first-year medical students early exposure to anesthesiology following their preclerkship courses in pharmacology and cardiopulmonary physiology. The main objective was to provide students with clinical skills and prepare them for rotations while immersing them in a unique experience, introducing a specialty not covered in core rotations. Methods: Participants were selected via their responses to an application. In addition to shadowing anesthesiologists, curriculum components included weekly faculty lectures on core aspects of anesthesiology (introductory basics, perioperative drugs, airway, and crisis management); multiple simulation labs (workstation setup, intubation clinics, intravenous and central line placement, ultrasound techniques); research opportunities; and mentorship from physicians and senior medical students. The program culminated in each student successfully leading a simulated case to receive a certificate of completion. Results: A survey of 15 participants revealed significant improvements in ability to intubate (P < 0.05), ability to perform a transthoracic echocardiogram (P < 0.05), interest in anesthesiology as a specialty (P < 0.05), and preparedness for future rotations (P < 0.05). Discussion: This program accelerates clinical exposure for preclerkship students, providing insights into anesthesiology early in their medical journey. It provides research and mentorship, fosters professional growth, and enhances individual competitiveness for residency program applications.

Tranexamic Acid Use Intra-Operatively Decreases the Need for Blood Transfusions and Post-Operative Edema in Temporomandibular Joint Surgeries.

Temporomandibular joint (TMJ) surgeries cover a vast assortment of surgical procedures such as tooth extractions, tissue biopsies, and extensive maxillofacial surgeries. Major complications that occur during and after TMJ surgeries include uncontrolled bleeding, considerable blood loss, serious infections, and edema. Tranexamic acid (TXA) is an antifibrinolytic agent that reduces blood loss by inhibiting the enzymatic breakdown of fibrin. Currently, TXA is widely used in various orthopedic surgeries to reduce bleeding and decrease the need for blood transfusions. In this study, we observed five patients undergoing major TMJ replacement surgeries and administered TXA during the procedure. The principal aim of this study was to examine the association between TXA administration during TMJ replacement surgery and blood loss and tissue edema.

Nasal Continuous Positive Airway Pressure as a Preferred Airway Management During IV Sedation of Obese Patients With Obstructive Sleep Apnea Undergoing Functional Luminal Imaging Probe Panometry.

The functional luminal imaging probe (FLIP) utilizes high-resolution planimetry to provide information regarding esophagogastric junction (EGJ) diameter, EGJ distensibility, and reactive contractile patterns of the esophageal body. This is an FDA-approved measurement tool utilized to both diagnose and measure various upper gastrointestinal disorders. While patients are sedated during FLIP panometry, significant respiratory variations can affect the quality of FLIP panometry results. Nasal continuous positive airway pressure (CPAP) can be utilized to prevent intraoperative or postoperative hypoxia in obese patients as well as those with obstructive sleep apnea (OSA). In this retrospective chart review, we compared obese patients with a diagnosis of OSA who underwent FLIP panometry utilizing nasal CPAP as airway management against a group who underwent the same procedure with a nasal cannula to evaluate the incidence of hypoxia, hypercapnia, variation in cardiovascular dynamics, and the quality of FLIP panometry readings.

Bacillary Layer Detachment in an Atypical Case of Central Serous Chorioretinopathy Associated with High Hyperopia.

A 16-year-old boy with elevated hyperopia presented to the office with a 24-h history of bilateral blurred vision, mainly of the left eye, and bilateral central serous chorioretinopathy. He showed a clinically recognizable bacillary layer detachment in one eye and excellent multimodal diagnostic image correlation, with the best-corrected visual acuity as 20/400. He had bilateral serous retinal detachment, as confirmed by optical coherence tomography. Laser photocoagulation was performed with good results, and reestablishment of the foveal anatomical structure was documented 16 days after treatment.

Bilaminar Graft of the Anterior Capsule and Internal Limiting Membrane: A Novel Surgical Technique for the Treatment of Macular Hole and Focal Macular Detachment Associated with High Myopia and Posterior Staphyloma.

This case report describes a novel surgical technique for the treatment of macular hole and focal macular detachment associated with high myopia and posterior staphyloma. A 65-year-old female presented with a stage 3C myopic traction maculopathy and VA of 20/600. OCT examination confirmed a macular hole of 958 µm diameter, posterior staphyloma, and macular detachment. We performed combined phacoemulsification surgery with 23G pars plana vitrectomy; the anterior capsule was preserved and divided into two equal circular laminar flaps. We proceeded with central and peripheral vitrectomy, brilliant blue staining, and partial ILM peeling; capsular sheets were introduced sequentially in the vitreous chamber, the first one was implanted below the hole and attached to pigment epithelium, the second lamina was inserted into the hole, and the remaining portion of ILM was implanted crosswise below the edges of the hole. Macular-hole closure and progressive reapplication of the macular detachment were obtained, with a final VA of 20/80. Treatment of macular holes and focal macular detachment in high myopic eyes is complex, even for experienced surgeons. We propose a new technique with additional mechanisms based on anterior lens capsule and internal limiting membrane tissue properties that showed functional and anatomical improvement and could be considered an alternative treatment.

Coping Strategies, Anxiety and Depression in OCD and Schizophrenia: Changes during COVID-19.

BACKGROUND: The main aim was to examine changes in coping strategies, anxiety and depression in obsessive-compulsive and schizophrenia patients during COVID-19, in addition to controlling the influence of intolerance to uncertainty and experiential avoidance. METHOD: The first time, the study comprised (15-30 April 2020) 293 patients, 113 of whom were diagnosed with obsessive-compulsive disorder, 61 with schizophrenia and 119 healthy controls, aged 13-77 years (M = 37.89, SD = 12.65). The second time (15-30 November), the study comprised 195 participants (85 obsessive-compulsive patients, 42 schizophrenic patiens and 77 healthy controls participants). The evaluation was carried out through an online survey. RESULTS: The clinical groups worsened over time in cognitive coping, anxiety and depression, while the control group only worsened in depression. Intergroup differences in anxiety, depression and coping strategies were maintained, highlighting the use of some maladaptive strategies (avoidance, spiritual) in clinical groups. Experiential avoidance and tolerance for uncertainty mainly affected coping. CONCLUSIONS: The duration of COVID-19 not only produced changes in anxiety and depression in clinical groups but also in coping strategies to face this pandemic and its consequences.

Coping strategies in obsessive-compulsive patients during Covid-19 lockdown / Estrategias de afrontamiento en pacientes con Trastorno obsesivo-compulsivo durante el confinamiento por COVID-19

Background/Objective: The main aim of this study was to compare coping strategies in obsessive-compulsive disorder (OCD) patients and a healthy control group during COVID-19 lockdown and to analyze the relationship with some variables which may influence results (depression, anxiety, comorbidity, subtype of obsession-compulsion). Method: There were 237 participants, 122 OCD and 115 healthy controls, aged 17-61 years old (M = 33.48, SD = 11.13). Results: Groups showed differences in the use of some adaptive strategies (positive reinterpretation, acceptance, humor) and maladaptive (denial, self-blame). Within obsessive-compulsive group, comorbidity affected the greater use of inappropriate strategies (denial, substance abuse and self-blame) while type of obsession-compulsion did not influence use. Anxiety and depression levels were related to the use of less adaptive strategies. Conclusions: These findings strengthen the need for training in the use of effective and adaptive coping strategies, making it necessary to improve clinical follow-up of these patients. It is relevant to be in contact with healthcare professionals, review medication and observe the anxiety and depression levels. (AU)

Antecedentes/Objetivo: El objetivo de este estudio fue comparar las estrategias de afrontamiento utilizadas por pacientes con Trastorno obsesivo-compulsivo (TOC) durante el confinamiento debido a la COVID-19 frente a controles sanos y analizar su relación con algunas variables que pueden influir en los resultados (ansiedad, depresión, comorbilidad, tipo de obsesiones-compulsiones). Método: Los participantes fueron 237, 122 diagnosticados de Trastorno obsesivo-compulsivo y 115 controles sanos, con edades comprendidas entre 13 y 58 años (M = 34,60, DT = 10,41). Resultados: Los grupos presentaron diferencias en el uso de algunas estrategias adaptativas (reinterpretación positiva, aceptación, humor) y desadaptativas (negación, autoculpa). Dentro del grupo TOC, la comorbilidad afectó para el mayor uso de estrategias inadecuadas (negación, abuso de sustancias y autoculpa), mientras que el tipo de obsesiones-compulsiones no influyó en el uso de las mismas. Los niveles de ansiedad y depresión estaban relacionadas con el uso de estrategias menos adaptativas. Conclusiones: Estos hallazgos refuerzan la necesidad de entrenar en la utilización de estrategias de afrontamiento eficaces y adaptativas, siendo necesario mejorar el seguimiento clínico de estos pacientes. Es importante estar en contacto con profesionales de la salud, revisar la medicación y observar los niveles de ansiedad y depresión. (AU)

Coping strategies in obsessive-compulsive patients during Covid-19 lockdown.

The main aim of this study was to compare coping strategies in obsessive-compulsive disorder (OCD) patients and a healthy control group during COVID-19 lockdown and to analyze the relationship with some variables which may influence results (depression, anxiety, comorbidity, subtype of obsession-compulsion). METHOD: There were 237 participants, 122 OCD and 115 healthy controls, aged 17-61 years old (M = 33.48, SD = 11.13). RESULTS: Groups showed differences in the use of some adaptive strategies (positive reinterpretation, acceptance, humor) and maladaptive (denial, self-blame). Within obsessive-compulsive group, comorbidity affected the greater use of inappropriate strategies (denial, substance abuse and self-blame) while type of obsession-compulsion did not influence use. Anxiety and depression levels were related to the use of less adaptive strategies. CONCLUSIONS: These findings strengthen the need for training in the use of effective and adaptive coping strategies, making it necessary to improve clinical follow-up of these patients. It is relevant to be in contact with healthcare professionals, review medication and observe the anxiety and depression levels.

El objetivo de este estudio fue comparar las estrategias de afrontamiento utilizadas por pacientes con Trastorno obsesivo-compulsivo (TOC) durante el confinamiento debido a la COVID-19 frente a controles sanos y analizar su relación con algunas variables que pueden influir en los resultados (ansiedad, depresión, comorbilidad, tipo de obsesiones-compulsiones). Método: Los participantes fueron 237, 122 diagnosticados de Trastorno obsesivo-compulsivo y 115 controles sanos, con edades comprendidas entre 13 y 58 años (M = 34,60, DT = 10,41). Resultados: Los grupos presentaron diferencias en el uso de algunas estrategias adaptativas (reinterpretación positiva, aceptación, humor) y desadaptativas (negación, autoculpa). Dentro del grupo TOC, la comorbilidad afectó para el mayor uso de estrategias inadecuadas (negación, abuso de sustancias y autoculpa), mientras que el tipo de obsesiones-compulsiones no influyó en el uso de las mismas. Los niveles de ansiedad y depresión estaban relacionadas con el uso de estrategias menos adaptativas. Conclusiones: Estos hallazgos refuerzan la necesidad de entrenar en la utilización de estrategias de afrontamiento eficaces y adaptativas, siendo necesario mejorar el seguimiento clínico de estos pacientes. Es importante estar en contacto con profesionales de la salud, revisar la medicación y observar los niveles de ansiedad y depresión.

Does exposure to parasites modify relationships between diurnal cortisol and leukocytes among Honduran women?

BACKGROUND: Altered hypothalamic-pituitary-adrenal (HPA) function and related changes in circulating glucocorticoids have been implicated in the pathogenesis of numerous diseases that involve dysregulated immune function. Glucocorticoid hormones have both direct and indirect modulatory effects on both pro- and anti-inflammatory aspects of the immune system, including granulocytic and lymphocytic leukocyte subsets. However, past findings are complicated by inconsistencies across studies in how glucocorticoids and immune markers interact and relate to disease risk. Some incongruencies are likely due to an overreliance on single-unit (e.g., HPA or one immune marker) measures, and a failure to consider ecological exposures that may shape the base levels or correspondence between these systems. Here, we test single-unit and diurnal measures of HPA axis and immune system interactions in a less-industrial ecological setting with relatively high parasite loads. METHODS: In a sample of 114 Honduran women (mean age = 36 years), morning and evening blood samples were analyzed to quantify granulocytes, lymphocytes, and immunoglobulin-E (IgE). Saliva was collected over 2 days (8 samples per woman) to measure peak cortisol, cumulative cortisol, and slope of decline. These repeated measures of saliva and venous blood were used to investigate associations between single-point and diurnal salivary cortisol and leukocytes, under variable levels of past parasite exposure (proxied by IgE). RESULTS: Individuals with less of a decline in cortisol (i.e., "flatter" decline) show less of an increase in lymphocytes (2.27% increase in cells/µL/hr; 95% CI: 0.91-7.29; p = .01) across the day compared to those with steeper cortisol decline (7.5% increase in lymphocytes; 95% CI: 5.79-9.34; p < .001). IgE levels did not modify this association. Interestingly, IgE did moderate relationships between measures of cortisol and granulocytes: diurnal cortisol was positively associated with granulocytes, only in individuals with high previous exposure to parasites. There were no consistent relationships between single-unit measures of cortisol, lymphocytes or granulocytes, regardless of past parasite exposure. DISCUSSION: Results demonstrate that the relationship between HPA function and immune modulation cannot be fully understood without an understanding of local disease ecology. These results highlight the importance of research that seeks to identify etiologies of disease across environmental contexts.

Multiscale AM-FM methods for diabetic retinopathy lesion detection.

In this paper, we propose the use of multiscale amplitude-modulation-frequency-modulation (AM-FM) methods for discriminating between normal and pathological retinal images. The method presented in this paper is tested using standard images from the early treatment diabetic retinopathy study. We use 120 regions of 40 x 40 pixels containing four types of lesions commonly associated with diabetic retinopathy (DR) and two types of normal retinal regions that were manually selected by a trained analyst. The region types included microaneurysms, exudates, neovascularization on the retina, hemorrhages, normal retinal background, and normal vessels patterns. The cumulative distribution functions of the instantaneous amplitude, the instantaneous frequency magnitude, and the relative instantaneous frequency angle from multiple scales are used as texture feature vectors. We use distance metrics between the extracted feature vectors to measure interstructure similarity. Our results demonstrate a statistical differentiation of normal retinal structures and pathological lesions based on AM-FM features. We further demonstrate our AM-FM methodology by applying it to classification of retinal images from the MESSIDOR database. Overall, the proposed methodology shows significant capability for use in automatic DR screening.

Changes in organic matter and residual effect of amendment with two-phase olive-mill waste on degraded agricultural soils.

Agricultural soils from many parts of the Mediterranean region are very poor in organic matter and are exposed to progressive degradation processes. Therefore, additions of the olive-mill waste from a continuous two-phase system as an organic amendment can improve soil quality and hence mitigate the negative environmental and agronomic limitations of these soils. A field study under semiarid Mediterranean conditions was conducted to evaluate the changes in organic matter after four consecutive annual additions of olive-mill watery husk (OMWH) waste and the de-oiled two-phase olive pomace (TPOP) waste on an olive grove soil: a cutanic Luvisol (CL). Treatments included a control, OMWH (30 and 60 Mg ha(-1), DW equivalent), and TPOP (27 and 54 Mg ha(-1), DW equivalent). Also, a two-year greenhouse study using wheat (Triticum aestivum L.) was conducted to evaluate the residual effects of adding OMWH to CL soil and to a degraded Leptic Cambisol (LC). Treatments included five OMWH rates ranging from 0 to 40 Mg ha(-1). Significant increases in total organic carbon (TOC), water soluble organic carbon (WSOC), humic and fulvic acids, and aggregate stability were observed in the treated plots, and the highest humification index was obtained when OMWH was applied at the lowest rate. The increase in aggregate stability correlated positively and highly significantly (P<0.01) with the humic and fulvic acid and WSOC contents. In the greenhouse, significant increases in TOC, carbohydrates, aggregate stability, total N, available K, and cation exchange capacity were observed in both soils. However, available P decreased significantly. There was an increased residual fertilization effect of OMWH for both soils. The best fits to grain yield and OMWH rates were with a linear regression for the CL soil (R(2)=0.957 and P<0.01), and a quadratic regression for the LC soil (R(2)=0.960 and P<0.01).