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1.
Front Vet Sci ; 11: 1378617, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38855412

RESUMEN

Objective: To compare the cardiopulmonary effects of apneustic anesthesia ventilation (AAV) and conventional mechanical ventilation (CMV) in anesthetized pigs and to describe a new mode of ventilation for anesthetized veterinary species. Study design: Randomized, crossover design without washout. Animals: Twelve healthy, female white Landrace pigs. Methods: Following ketamine-midazolam premedication and anesthetic induction with propofol, the trachea was intubated, and each pig was positioned in dorsal recumbency. Anesthesia was maintained with propofol and sufentanil infusions. Pigs were instrumented and their lungs were sequentially ventilated with each mode, in random order, for 1 h according to predefined criteria [fraction of inspired oxygen (FiO2) = 0.21, 10 mL kg-1 tidal volume (VT), and arterial carbon dioxide tension (PaCO2) within 40-45 mmHg]. Cardiopulmonary data were collected at baseline, 30 and 60 min. In 8 pigs, thoracic computed tomography (CT) was performed following the 60 min time point for each mode of ventilation and images were analyzed to quantify lung aeration. The effects of ventilation mode, time, and order were analyzed using repeated measures ANOVA. Paired t-tests were used to compare lung aeration between modes. Significance was defined as p < 0.05. Results: Data from 12 pigs were analyzed. A significant effect of mode was found for heart rate, mean arterial pressure (MAP), pulmonary artery occlusion pressure, cardiac index (CI), stroke volume index, systemic vascular resistance, pulmonary vascular resistance, oxygen delivery index (DO2I), oxygen extraction ratio (O2ER), VT, arterial oxygen tension, arterial hemoglobin saturation, PaCO2, end-tidal carbon dioxide tension, alveolar dead space (VDalv/VTalv), venous admixture ( Q . s / Q . t ), mean airway pressure, and dynamic compliance index (CRSI). Order effects were also observed for some cardiovascular and respiratory variables. For the eight pigs that underwent thoracic CT, AAV resulted in significantly larger proportions of normally and hyperaerated lung while CMV resulted in larger proportions of hypoaerated and atelectatic lung. Conclusions: In dorsally recumbent anesthetized pigs, ventilated with FiO2 = 0.21, both modes of ventilation supported adequate oxygenation while AAV resulted in higher CRSI, and lower VDalv/VTalv and Q . s / Q . t , compared with CMV. AAV was also associated with lower MAP, CI, and DO2I and higher O2ER compared with CMV. Further investigation of AAV in anesthetized animals is warranted.

3.
Front Vet Sci ; 11: 1287478, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38645641

RESUMEN

Introduction: Use of mechanical ventilation during general anesthesia is a necessary practice in the anesthetization of small cetaceans as spontaneous ventilation fails to provide adequate gas exchange. Currently available methods of ventilation do not account for the intermittent breathing strategy of representative species within this infraorder of fully aquatic mammals and may have a significant effect on cardiac and respiratory physiology. Methods: To understand the impact of mechanical ventilation on cardiopulmonary function in one small species of cetacean, the bottlenose dolphin (Tursiops truncatus), we compared controlled mechanical ventilation (CMV) to a novel ventilation method known as apneustic anesthesia ventilation (AAV). AAV simulates the normal inspiratory breath-hold pattern of dolphins. Ten anesthetic procedures (dental procedure, n = 9; bronchoscopy, n = 2) were performed on nine dolphins (age range: 10-42 years; mean = 32 years; median = 37 years; female = 3, 40%; male = 6, 60%). In a cross-over study design, dolphins were instrumented and randomly assigned to AAV or CMV as the initial mode of ventilation, then switched to the alternate mode. Baseline cardiopulmonary data were collected and again after 30 min on each mode of ventilation. Cardiac index, stroke volume index, systemic vascular resistance, alveolar dead space, alveolar-arterial oxygen tension gradient, arterial oxygen content, oxygen delivery index, and dynamic respiratory system compliance index were calculated at each of the four time points. Results: During AAV, dolphins had higher arterial oxygen tension, higher mean airway pressure, reduced alveolar dead space ventilation and lower alveolar-arterial oxygen difference. Cardiovascular performance was not statistically different between the two modes. Discussion: Our study suggests AAV, which more closely resembles the conscious intermittent respiratory pattern phenotype of dolphins, improves ventilation and pulmonary function in the anesthetized dolphin. Future studies should evaluate the cardiopulmonary effects of neutral buoyancy and cardiopulmonary sparing drug protocols to reduce the need for hemodynamic support of current protocols.

4.
Mil Med ; 2024 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-38553994

RESUMEN

Cases of active tuberculosis (TB) in the U.S. Military have fallen over the last century in large part due to improved screening and treatment options. The subset of multidrug-resistant TB (MDR-TB) is almost nonexistent within the U.S. Military. We present a case of MDR-TB in an active duty U.S. Military health care worker and discuss several considerations for treatment that may present challenges for U.S. Military medical practitioners. A 30-year-old active duty Soldier was referred to Army public health services after a bronchoscopy sample was positive for Mycobacterium tuberculosis complex. Sputum smears were negative for acid-fast bacilli, suggesting lower risk for community spread. One month after initiation of the standard 4-drug regimen for active TB, genetic susceptibility testing found the patient's M. tuberculosis isolate to be resistant to rifampin, isoniazid, and pyrazinamide. Contact investigation efforts among co-workers and family members fortunately found no new interferon-gamma release assay conversions. Coordination of public health assets to ensure a successful treatment regimen occurred across varied local, state, and federal agencies. Atypical medications required coordination with the FDA for procurement. An extensive surveillance plan for medication adverse effects was required. Finally, questions of public health authority versus patient autonomy arose requiring multidisciplinary input and ethical discussions.

5.
Mil Med ; 189(9-10): e2107-e2113, 2024 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-38150392

RESUMEN

INTRODUCTION: The Airborne Hazards and Open Burn Pit Registry (AHOBPR) allows service members to self-report exposure to burn pits during military deployments and functional status (a composite metric of physical fitness status). This study investigated whether general exposure to burn pits, specific performance of burn pit duties, or the cumulative number of days deployed in Southwest Asia was associated with a change in functional status. MATERIALS AND METHODS: A retrospective cross-sectional analysis of 234,061 participants in the AHOBPR who completed questionnaires before August 2021 was conducted. Exposure was presumed if an individual reported any burn pits exposure during deployment or if an individual reported having to work at a burn pit as part of their duties and was quantified by the cumulative-reported exposure days. The outcome was the reported composite functional score. Statistical analysis used linear regression, which was adjusted for significant variables. A possible dose-response effect from cumulative deployment and burn pits exposure days was evaluated. Statistical significance was determined at P < 0.05. RESULTS: The burn pit exposure groups were notably different in size (exposed: 230,079, non-exposed: 3982) and were significantly different for all compared variables. There was a negative association between cumulative exposure days and functional score with a significant test for trend. There was a marginal positive significant association between cumulative deployment days and functional score with a significant test for trend. Reporting exposure to burn pit duties was also significantly associated with a lower functional score. CONCLUSION: This study suggests a dose-response relationship between cumulative burn pit exposure and decreased functional status. It also suggests a modest positive relationship between cumulative deployment days and reported function, which may represent a "healthy deployer" effect.


Asunto(s)
Autoinforme , Humanos , Masculino , Estudios Transversales , Autoinforme/estadística & datos numéricos , Estudios Retrospectivos , Femenino , Adulto , Encuestas y Cuestionarios , Personal Militar/estadística & datos numéricos , Estado Funcional , Exposición Profesional/efectos adversos , Exposición Profesional/estadística & datos numéricos , Quemaduras/epidemiología , Quemaduras/fisiopatología , Quemaduras/etiología , Sistema de Registros/estadística & datos numéricos , Quema de Residuos al Aire Libre
6.
J Xenobiot ; 13(2): 218-236, 2023 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-37218811

RESUMEN

Selective Androgen Receptor Modulators (SARMs) are not FDA approved, and obtaining SARMs for personal use is illegal. Nevertheless, SARM use is increasingly popular amongst recreational athletes. Recent case reports of drug-induced liver injury (DILI) and tendon rupture raise serious concerns for the safety of recreational SARM users. On 10 November 2022 PubMed, Scopus, Web of Science, and ClinicalTrials.gov were searched for studies that reported safety data of SARMs. A multi-tiered screening approach was utilized, and any study or case report of generally healthy individuals exposed to any SARM was included. Thirty-three studies were included in the review with 15 case reports or case series and 18 clinical trials (total patients N = 2136 patients, exposed to SARM N = 1447). There were case reports of drug-induced liver injury (DILI) (N = 15), Achilles tendon rupture (N = 1), rhabdomyolysis (N = 1), and mild reversible liver enzyme elevation (N = 1). Elevated alanine aminotransferase (ALT) was commonly reported in clinical trials in patients exposed to SARM (mean 7.1% across trials). Two individuals exposed to GSK2881078 in a clinical trial were reported to have rhabdomyolysis. Recreational SARM use should be strongly discouraged, and the risks of DILI, rhabdomyolysis, and tendon rupture should be emphasized. However, despite warnings, if a patient refuses to discontinue SARM use, ALT monitoring or dose reduction may improve early detection and prevention of DILI.

7.
J Appl Lab Med ; 8(2): 307-318, 2023 03 06.
Artículo en Inglés | MEDLINE | ID: mdl-36705074

RESUMEN

BACKGROUND: Bone health supplements containing strontium are available without prescription, however, the effects of strontium interference on clinical laboratory calcium measurement procedures are unknown. METHODS: To evaluate strontium interference on total calcium measurements, plasma pools with exogenously added strontium were measured by 3 total calcium measurement procedures. For ionized calcium measurements, whole blood pools prepared with exogenously added strontium were measured by 2 ionized calcium measurement procedures. An inductively coupled plasma mass spectrometry assay (ICP-MS) was validated for research measurements of strontium content in commercially available supplements. RESULTS: Exogenous strontium addition to plasma caused positive bias for total calcium measurements. Strontium concentrations of 1.0 mg/dL (0.114 mmol/L), 2.5 mg/dL (0.284 mmol/L), and 5.0 mg/Dl (0.568 mmol/L) resulted in mean biases of 1.9% to 3.5%, 4.9% to 9.0%, and 10.8% to 19.2%, respectively, for total calcium measurement procedures. Biases for ionized calcium measurements were less than 4.5% for a strontium concentration of 5.0 mg/dL (0.568 mmol/L). An in-house-developed ICP-MS assay for strontium in commercially available supplements exhibited within-laboratory and within-run coefficients of variation of less than 3%, and a linear response was obtained over the assay analytical measurement range of 10 to 100 000 ng/mL (0.0001 to 1.141 mmol/L). Strontium recovery for the ICP-MS assay was 97.1% to 105.3%. The largest amount of strontium measured in dietary supplements was 395 mg in a 1054 mg tablet. CONCLUSIONS: Some dietary supplements contain larger amounts of strontium than indicated on the product label. High concentrations of strontium may cause significant interference for total calcium measurement procedures, but ionized calcium measurement procedures are not significantly affected.


Asunto(s)
Calcio , Suplementos Dietéticos , Humanos , Bioensayo , Correlación de Datos , Estroncio
8.
Am Surg ; : 31348221117038, 2022 Dec 05.
Artículo en Inglés | MEDLINE | ID: mdl-36469507

RESUMEN

Background/Objective: Optimal approach for lower anterior resection has been closely debated. The relatively new addition of the robotic approach adds a layer of complexity to this topic. The majority of the literature has compared the possible approaches between two techniques; however, only a few studies have comprehensively compared all 3 approaches at the same time, especially in a non-academic center.Study Design: This is a retrospective cohort study of a prospectively maintained database of data from a large group of private-practice colorectal surgeons in a large metropolitan area. Specifically, rectal resections using open, laparoscopic, and robotic approaches were queried. A total of 130 patients underwent open, laparoscopic, or robotic oncological lower anterior resection from 2016 to January 2020.Results: Statistical significance of length of stay was noted between the three approaches with the mean length of stay for open being 8.08 days, laparoscopic being 7.04 days, and robotic being 4.96 days (P < .005). No statistical significance was noted for estimated blood loss, operating time, or postoperative complications including anastomotic leak, ileus, pneumonia, pulmonary embolism, surgical site infection, and urinary tract infection. When directly comparing any minimally invasive surgery approach to open, estimated blood loss was decreased in addition to the shortened length of stay (P < .05).Conclusions: This study demonstrates that MIS LAR has significant benefit over the open approach. However, finding that robotic surgery had was superior to laparoscopic LAR which was surprising and important. This experience in the private world raises the question as to whether robotic LAR should be considered the standard of care.

9.
Mil Med ; 2022 Oct 08.
Artículo en Inglés | MEDLINE | ID: mdl-36208203

RESUMEN

Amateur foraging, which can be described as the gathering of uncultivated plants for sustenance or recreation, supports many benefits for the forager and the environment; however, it can also present the hazard of unintentional poisoning. Asclepias syriaca, or common milkweed, is a potentially edible plant that also contains cardioactive steroids akin to digoxin. A 38-year-old female amateur forager boiled and sautéed 8-10 milkweed pods before ingesting them. She developed vomiting and heart palpitations within 1 hour and presented to an emergency department 3 hours after ingestion. Her exam was within normal limits with exception of heart rate in the 40-50s without hypotension. ECG was notable for sinus bradycardia. Laboratory analysis was notable for a detectable serum digoxin concentration. Life-threatening toxicity did not occur. Recently, some military services have advocated for foraging as a means to sustain far-forward troops. However, misidentification of plants by inexperienced foragers can result in severe toxicity or death. If mass foraging becomes part of expeditionary operations, military clinicians must be trained and prepared for the potentially severe plant-related poisonings.

10.
Hosp Pediatr ; 12(9): 816-825, 2022 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-35948643

RESUMEN

OBJECTIVE: Interfacility transfer of pediatric patients to a children's hospital is a complex process that can be time consuming and dissatisfying for referring providers. We aimed to improve the efficiency of communication and acceptance for interfacility transfers to our hospital. METHODS: We implemented iterative improvements to the process in 2 phases from 2013 to 2016 (pediatric medicine) and 2019 to 2022 (pediatric critical care and surgery). Key interventions included creation of a hospitalist position to manage transfers with broad ability to accept patients and transition to direct phone access for transfer requests to streamline connection. Effective initiatives from Phase 1 were adapted and spread to the other services in Phase 2. Data were manually extracted monthly from call transcripts and monitored by using statistical process control (SPC) charts. Primary outcome measures were time from call to connection to a provider and number of providers added to the call before making a disposition decision. RESULTS: Average time from call initiation to provider connection for pediatric medicine calls decreased from 11 minutes to 5 minutes. The average number of internal physicians on each call before acceptance decreased from 2.1 to 1.3. In Phase 2, time to provider connection decreased from 11 to 4 minutes for pediatric critical care calls and 16 to 5 minutes for pediatric surgery calls. CONCLUSIONS: We streamlined the process of accepting incoming transfer requests throughout our children's hospital. Prioritizing direct communication led to efficient disposition decisions and progression toward transfer and was effective for multiple service lines.


Asunto(s)
Médicos Hospitalarios , Transferencia de Pacientes , Niño , Hospitales Pediátricos , Humanos , Teléfono , Atención Terciaria de Salud
11.
Vet Anaesth Analg ; 49(4): 372-381, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35644741

RESUMEN

OBJECTIVE: To compare the cardiopulmonary effects of apneustic anesthesia ventilation (AAV) and conventional mechanical ventilation (CMV) in dorsally recumbent anesthetized horses. STUDY DESIGN: Randomized, crossover design. ANIMALS: A total of 10 healthy adult horses from a university-owned herd. METHODS: Following xylazine, midazolam and ketamine administration, horses were orotracheally intubated and positioned in dorsal recumbency. Anesthesia was maintained with isoflurane in oxygen [inspired oxygen fraction (FiO2) = 0.3 initially, with subsequent titration to maintain PaO2 ≥ 85 mmHg (11.3 kPa)]. Horses were instrumented and ventilated with AAV or CMV for 1 hour according to predefined criteria [10 mL kg-1 tidal volume (VT), PaCO2 of 40-45 mmHg (5.3-6.0 kPa) during CMV and <60 mmHg (8.0 kPa) during AAV]. Dobutamine was administered to maintain mean arterial pressure (MAP) >65 mmHg. Cardiopulmonary data were collected at baseline, 30 and 60 minutes. The effects of ventilation mode and time were analyzed using repeated-measures anova with significance defined as p < 0.05. RESULTS: Data from nine horses were analyzed. A significant effect of mode at one or more time points was found for respiratory rate, arterial and end-tidal CO2 tensions, arterial pH, mean airway pressure (Paw), respiratory system dynamic compliance index (CrsI), venous admixture (Q˙s/Q˙t), mean pulmonary artery pressure and systemic vascular resistance. No significant differences between modes were found for VT, FiO2, PaO2, arterial hemoglobin saturation, alveolar dead space, heart rate, MAP, cardiac index, stroke volume index, oxygen delivery index, oxygen extraction ratio and dobutamine administration. CONCLUSIONS AND CLINICAL RELEVANCE: In dorsally recumbent anesthetized horses, both ventilation modes supported adequate oxygenation with minimal supplemental oxygen. Compared with CMV, AAV resulted in higher CrsI and lower Q˙s/Q˙t. Despite higher mean Paw with AAV, the cardiovascular effects of each mode were not different. Further trials of AAV in anesthetized horses are warranted.


Asunto(s)
Anestesia , Infecciones por Citomegalovirus , Enfermedades de los Caballos , Anestesia/veterinaria , Animales , Infecciones por Citomegalovirus/veterinaria , Dobutamina , Caballos/cirugía , Humanos , Oxígeno , Respiración Artificial/métodos , Respiración Artificial/veterinaria
13.
Toxicon ; 200: 1-2, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34181973

RESUMEN

INTRODUCTION: The St. Ignatius bean of the Strychnos ignatii tree and Nux Vomica homeopathic products presumably could contain the toxic alkaloids strychnine and brucine. This study aimed to determine the amount of these toxic alkaloids in some commercially available Nux Vomica products and the St. Ignatius bean and to determine if overdose of these products could result in clinically significant toxicity. METHODS: Using ultra-performance liquid chromatography-tandem mass spectrometry, various formulations of Nux Vomica products and St. Ignatius beans were analyzed for strychnine, and brucine with detection limits set at 0.1 ng/g. RESULTS: None of the analyzed Nux Vomica products contained any detectable strychnine or brucine, while the expected strychnine dose from a St. Ignatius bean would be < 0.001 mg. CONCLUSIONS: Overall, our study reveals that the amount of strychnine in homeopathic Nux Vomica products or St. Ignatius beans are not likely to result in clinically significant strychnine toxicity.


Asunto(s)
Alcaloides , Materia Medica , Strychnos nux-vomica , Semillas , Estricnina
15.
Clin Toxicol (Phila) ; 59(12): 1259-1263, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33703981

RESUMEN

INTRODUCTION: References listing common occupational poisons often include agents that were observed decades prior to the introduction of worker protective laws and regulations. Current causes of work-related acute poisonings have not been characterized. This study's primary objective was to describe the most common poisons and routes of exposure responsible for clinically significant occupational poisonings. A secondary objective was to determine the crude rate of clinically significant occupational poisonings and occupational poisoning-related deaths over the study period. METHODS: This was a retrospective cohort study using electronic data from the American Association of Poison Control Centers' (AAPCC) National Poison Data System (NPDS), and open source data from the United States Bureau of Labor Statistics (BLS). The NPDS was queried for all cases with exposure reason coded as "Unintentional-Occupational" for the period 1 January 2008 to 31 December 2018. A case of clinically significant occupational poisoning (CSOP) was defined as a case with moderate or severe clinical effects reported, to include fatal cases. A descriptive analysis was conducted using unadjusted odds ratios to assess the strength of association between main variables of interest and CSOP. RESULTS: 329,437 exposure cases were available for analysis. Of these, 54,254 were considered CSOP and included 196 deaths. The top five poisons responsible for occupational fatalities were hydrogen sulfide, ammonia, carbon monoxide, simple asphyxiants, and chlorines. Fatalities were 3.7 times (OR: 3.7; 95% CI: 2.2-6.4) more likely to be men and 5.7 times (OR: 5.7; 95% CI: 4.0-8.1) more likely to have had an inhalational exposure, compared to those workers with CSOP without fatality. The crude rate of occupational fatal poisoning reported to US poison centers was 11.3 deaths per 100,000,000 worker-years during the study period. The crude rate of clinically significant occupational poisoning was 3.1 per 100,000 worker-years. These rates remained generally stable over the study period. CONCLUSION: Occupational poisonings continue to be a significant cause of morbidity and mortality in the workplace despite significant improvements in workplace chemical safety over the last four decades. Workplace education and proper preventive measures devoted to inhalational toxicants and respiratory protection are opportunities for improvement.


Asunto(s)
Centros de Control de Intoxicaciones , Intoxicación , Cloro , Bases de Datos Factuales , Humanos , Exposición por Inhalación , Masculino , Intoxicación/etiología , Estudios Retrospectivos , Estados Unidos/epidemiología
16.
Clin Toxicol (Phila) ; 59(10): 932-936, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33620007

RESUMEN

BACKGROUND: Recent recognition of "massive" acetaminophen (APAP) overdoses has led to the question of whether standard dosing of N-acetylcysteine (NAC) is adequate to prevent hepatoxicity in these patients. The primary aim of this study was to evaluate the clinical outcome for patients with massive APAP overdose who received standard intravenous NAC dosing of 300 mg/kg over 21 h. METHODS: This was a single-center retrospective cohort study conducted by chart review of APAP overdoses reported to a regional poison center from 1 January 2010 to 31 December 2019. Massive APAP overdose was defined by single, acute overdose resulting in an APAP concentration exceeding 300 mcg/mL at 4 h post-ingestion. Standard univariate statistical analysis was conducted to describe the cohort, and a multivariate logistic model was utilized to calculate adjusted odds ratios for risk of hepatoxicity. RESULTS: 1425 cases of APAP overdose were reviewed. 104 cases met the inclusion criteria of massive APAP overdose. Overall, 79 cases (76%) had no acute liver injury or hepatotoxicity, and 25 (24%) developed hepatoxicity. Nine percent (n = 4) of cases receiving NAC within 8 h developed hepatotoxicity. Crude odds for hepatoxicity was 5.5-fold higher for cases who received NAC after 8 h. CONCLUSIONS: Standard NAC dosing received within 8 h prevented hepatoxicity in 91% (n = 40) of cases in our series of massive APAP overdoses. Additional data is needed to determine the clinical outcomes of massive APAP overdose using current intravenous NAC dosing.


Asunto(s)
Acetaminofén/envenenamiento , Acetilcisteína/administración & dosificación , Analgésicos no Narcóticos/envenenamiento , Antídotos/administración & dosificación , Enfermedad Hepática Inducida por Sustancias y Drogas/prevención & control , Sobredosis de Droga/tratamiento farmacológico , Adolescente , Adulto , Enfermedad Hepática Inducida por Sustancias y Drogas/diagnóstico , Enfermedad Hepática Inducida por Sustancias y Drogas/etiología , Esquema de Medicación , Sobredosis de Droga/diagnóstico , Femenino , Humanos , Infusiones Intravenosas , Masculino , Centros de Control de Intoxicaciones , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
17.
Clin Toxicol (Phila) ; 59(3): 260-264, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32757843

RESUMEN

INTRODUCTION: Loxosceles reclusa (LR), commonly known as the brown recluse spider, is endemic to the south central United States. We present a case of LR envenomation in a healthy adult male outside the usual geographic range, with atypical dermatologic and delayed, prolonged systemic loxoscelism (LX). This case demonstrates the importance of expanding the depth of knowledge of LR envenomations. CASE REPORT: A previously healthy 27 year-old male presented to an emergency department (ED) in central Virginia two hours after a LR envenomation to his left proximal arm. He was treated with diphenhydramine and discharged on oral methylprednisolone for a 5-day taper. On post-bite Days 1 and 2, the patient developed subjective fevers, chills, arthralgias, and myalgias, followed by a blanching, pruritic, morbilliform rash throughout his trunk and lower extremities. Post-bite Day 3, the patient presented to the ED again because of marked erythema of face and the right lateral thigh, and posterior and anterior trunk. Vital signs and laboratory analysis were generally unremarkable. The patient was observed overnight, and discharged with a prescription for prednisone 60 mg per day. On post-bite Day 7, the patient noted a petechial rash on the palms and soles and returned to the ED with a fever of 102.6 °F, a heart rate of 130 beats per minutes, and systolic blood pressure ranging 80-90 mmHg. After considering this may be an atypical presentation of LX, corticosteroids were increased to methylprednisolone 1 mg/kg IV every 6 h. The patient's condition slowly improved and he was discharged on post-bite Day 10. On post-bite Day 24, he had nearly complete resolution of skin findings. CONCLUSIONS: LR envenomation can cause a variety of dermatological and systemic manifestations of toxicity. It is critical for toxicologists to be aware of the variety of presentations and findings to appropriately assess and treat LX.


Asunto(s)
Araña Reclusa Parda , Piel/patología , Picaduras de Arañas/patología , Adulto , Animales , Brazo , Diagnóstico Diferencial , Servicio de Urgencia en Hospital , Humanos , Masculino , Picaduras de Arañas/diagnóstico , Virginia/epidemiología
18.
Mil Med ; 186(3-4): e451-e453, 2021 02 26.
Artículo en Inglés | MEDLINE | ID: mdl-33005940

RESUMEN

Clonidine is a central alpha-2 agonist well known to produce a syndrome of bradycardia and hypotension in overdose. However, few examples of overt clinical clonidine toxicity secondary to cutaneous absorption have been reported. We report a case of unintentional systemic clonidine toxicity in an adult because of a compounded preparation of clonidine applied to a degraded skin barrier. A 35-year-old male suffered a motorcycle accident 48 hours before presentation resulting in an abrasion to his distal left leg. On the day of presentation, he self-treated the wound by repeated application of a family member's pain-relieving cream. Later he was found confused and unable to stand by a family member. The family member recognized the thick visible coat of cream as the likely cause and decontaminated the patient while calling 911. Prehospital vitals were notable for a blood pressure of 80/30 mm Hg and heart rate of 38 beats per minute. In the emergency department, the patient was resuscitated with intravenous fluids with resultant normalization of blood pressure. Upon later review, the cream was determined to have been created by a local compounding pharmacy for the use in neuropathic pain and was labeled to contain clonidine, lidocaine, ketamine, and gabapentin. Cutaneous absorption of the pain cream was greatly increased because of loss of skin integrity. Military physicians and compounding pharmacies should ensure that patients are aware of the proper application of compounded creams and the potential risk for systemic toxicity with overuse or degraded skin.


Asunto(s)
Clonidina/efectos adversos , Mareo , Exantema , Adulto , Mareo/inducido químicamente , Composición de Medicamentos , Exantema/inducido químicamente , Gabapentina , Humanos , Masculino
19.
Ann Intern Med ; 173(10): 822-829, 2020 11 17.
Artículo en Inglés | MEDLINE | ID: mdl-32956597

RESUMEN

DESCRIPTION: In June 2020, the U.S. Department of Veterans Affairs (VA) and U.S. Department of Defense (DoD) released a joint update of their clinical practice guideline for managing dyslipidemia to reduce cardiovascular disease risk in adults. This synopsis describes the major recommendations. METHODS: On 6 August to 9 August 2019, the VA/DoD Evidence-Based Practice Work Group (EBPWG) convened a joint VA/DoD guideline development effort that included clinical stakeholders and conformed to the Institute of Medicine's tenets for trustworthy clinical practice guidelines. The guideline panel developed key questions, systematically searched and evaluated the literature (English-language publications from 1 December 2013 to 16 May 2019), and developed 27 recommendations and a simple 1-page algorithm. The recommendations were graded by using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) system. RECOMMENDATIONS: This synopsis summarizes key features of the guideline in 7 crucial areas: targeting of statin dose (not low-density lipoprotein cholesterol goals), additional tests for risk prediction, primary and secondary prevention, laboratory testing, physical activity, and nutrition.


Asunto(s)
Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hiperlipidemias/tratamiento farmacológico , Cumplimiento de la Medicación , Enfermedades Cardiovasculares/prevención & control , Dieta Mediterránea , Ejercicio Físico , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/administración & dosificación , Inhibidores de Hidroximetilglutaril-CoA Reductasas/efectos adversos , Hipercolesterolemia/tratamiento farmacológico , Hiperlipidemias/terapia , Guías de Práctica Clínica como Asunto , Medición de Riesgo , Prevención Secundaria
20.
Crit Care Explor ; 2(5): e0127, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32671351

RESUMEN

SETTING: The coronavirus disease 2019 pandemic has raised fear throughout the nation. Current news and social media predictions of ventilator, medication, and personnel shortages are rampant. PATIENTS: Patients with coronavirus disease 2019 are presenting with early respiratory distress and hypoxemia, but not hypercapnia. INTERVENTIONS: Patients who maintain adequate alveolar ventilation, normocapnia, and adequate oxygenation may avoid the need for tracheal intubation. Facemask continuous positive airway pressure has been used to treat patients with respiratory distress for decades, including those with severe acute respiratory syndrome. Of importance, protocols were successful in protecting caregivers from contracting the virus, obviating the need for tracheal intubation just to limit the spread of potentially infectious particles. CONCLUSIONS: During a pandemic, with limited resources, we should provide the safest and most effective care, while protecting caregivers. Continuous positive airway pressure titrated to an effective level and applied early with a facemask may spare ventilator usage. Allowing spontaneous ventilation will decrease the need for sedative and paralytic drugs and may decrease the need for highly skilled nurses and respiratory therapists. These goals can be accomplished with devices that are readily available and easier to obtain than mechanical ventilators, which then can be reserved for the sickest patients.

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