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OBJECTIVE: The main objective of this present paper was to evaluate the results and outcomes of patients with acute limb ischemia (ALI) submitted to pharmacomechanical thrombectomy (PMT) endovascular surgery with Angiojet, regarding the number of cycles/pumps. METHODS: Prospective, consecutive cohort study of ALI patients submitted to PMT endovascular intervention subdivided into two groups according to the number of cycles in the Angiojet technique: Group 1 higher than 150 cycles/second and Group 2 lesser than 150 cycles/second (cycles/s). RESULTS: Overall, 92 patients with ALI submitted to PMT were evaluated. Two groups of patients were identified: Group 1 higher than 150 cycles/s with 60 patients and Group 2 lesser than 150 cycles/s with 32 patients. The overall mortality rate (OMR) was 15.1% (13 patients) in total cohort within the first 30 days. Group 1 had a higher OMR than Group 2 (16.1% vs 9.3%, p = 0.007). There were 4 cases of hematuria (4.3%), all of them in Group 1. We have performed a Kaplan-Meier regarding limb salvage rates: Group 1 had 85% and Group 2 had 95.7% at 1057 days. P = 0.081. Among the factors evaluated, the following were related to overall mortality rate: PMT with higher >150 cycles/s (HR = 7.17, p = 0.007, CI: 1.38-8.89), COVID-19 infection (HR = 2.75, p = 0.010, CI = 1.73-5.97), and post-operative acute kidney injury (HR = 2.97, p < 0.001, CI = 1.32-8.13). Among the factors evaluated, the following was related to limb loss: post-operative acute kidney injury (HR = 4.41, p = 0.036, CI: 1.771-7.132), probably because patients experiencing limb loss have a higher incidence of acute renal insufficiency due to higher circulating myoglobin higher hemolysis from the increased Angiojet cycles inducing rhabdomyolysis. CONCLUSION: PMT with Angiojet is a safe and effective therapy in patients with ALI. However, patients receiving greater than 150 cycles/s were noted to have higher rates of acute kidney injury and mortality. This is likely reflective of increased thrombus burden and higher rates of hemolysis. Acute kidney injury, greater than 150 cycles/s, and COVID-19 infection were the variables with the strongest association to perioperative mortality.

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Introducción: La diabetes mellitus tipo 2 (DM2) constituye un problema de salud pública. Objetivos: Determinar la frecuencia de los desbridamientos quirúrgicos y amputaciones de miembros inferiores en pacientes diabéticos tipo 2 y su impacto económico. Materiales y métodos: Se realizó un estudio Observacional descriptivo de corte transversal. Se estimaron los costos médicos directos tanto de desbridamientos quirúrgicos como de amputaciones de miembros inferiores en pacientes diabéticos en el Hospital de Clínicas San Lorenzo, durante el año 2019. Resultados: El total de desbridamientos quirúrgicos y amputaciones de miembros inferiores en el año 2019 representan el 1,9% (314/16.484) de los procedimientos quirúrgicos realizados en el Hospital de Clínicas. El monto total de gastos es de 1.804.185.116 (262.541 USD), de los cuales 172.514.000 (38.857 USD) constituyen gastos de bolsillo y 1.631.671.116 (237.437 USD) constituyen gastos erogados al Estado Paraguayo a través del Hospital de Clínicas de San Lorenzo. Conclusión: Las complicaciones de la diabetes imponen considerables costos tanto en el gasto de bolsillo, al sector de la salud como a la economía en general en el Paraguay, por lo que es necesario re evaluar el manejo de esta problemática teniendo en cuenta el gran impacto que tienen dichos procedimientos producen en la vida de los pacientes a nivel físico, emocional, familiar y social, así como la carga económica que conlleva el tratamiento para el Sistema de Salud.

Introduction: Type 2 diabetes mellitus (T2DM) constitutes a public health problem. Objectives: Determine the frequency of surgical debridement and lower limb amputations in type 2 diabetic patients and their economic impact. Materials and methods: A descriptive cross-sectional observational study was carried out. The direct medical costs of both surgical debridement and lower limb amputations in diabetic patients at the Hospital de Clínicas, San Lorenzo were estimated during 2019. Results: The total of surgical debridement and lower limb amputations in 2019 represents the 1.9% (314/16,484) of surgical procedures performed at the Hospital de Clínicas. The total amount of expenses is 1,804,185,116 (262,541 USD), of which 172,514,000 (38,857 USD) constitute out-of-pocket expenses and 1,631,671,116 (237,437 USD) constitute expenses disbursed to the Paraguayan State through the Hospital de Clínicas de San Lorenzo. Conclusion: The complications of diabetes impose considerable costs both in out-of-pocket spending, on the health sector and on the economy in general in Paraguay, so it is necessary to re-evaluate the management of this problem taking into account the great impact that these procedures have on the lives of patients on a physical, emotional, family and social level, as well as the economic burden that the treatment entails for the Health System.

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At least two million people in the United States of America live with lost limbs, and the number is expected to double by 2050, although the incidence of amputations is significantly greater in other parts of the world. Within days to weeks of the amputation, up to 90% of these individuals develop neuropathic pain, presenting as phantom limb pain (PLP). The pain level increases significantly within one year and remains chronic and severe for about 10%. Amputation-induced changes are considered to underlie the causation of PLP. Techniques applied to the central nervous system (CNS) and peripheral nervous system (PNS) are designed to reverse amputation-induced changes, thereby reducing/eliminating PLP. The primary treatment for PLP is the administration of pharmacological agents, some of which are considered but provide no more than short-term pain relief. Alternative techniques are also discussed, which provide only short-term pain relief. Changes induced by various cells and the factors they release are required to change neurons and their environment to reduce/eliminate PLP. It is concluded that novel techniques that utilize autologous platelet-rich plasma (PRP) may provide long-term PLP reduction/elimination.

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Assessment of ischaemia severity includes a variety of measures, such as pedal pulse palpation, the ankle/brachial index (ABI), and the toe/brachial index (TBI), but there is a lack of consensus regarding which ischaemia scale is the most effective for determining outcome prognosis. The purpose of this study is to validate the application of the ischaemia severity scale (ISS) in the effective prediction of wound healing, amputations, and mortality for diabetic foot wounds (DFW). This prospective study included 235 consecutive patients graded according to the Saint Elian Wound Score System (SEWSS). The ISS is part of this system, with patients being scored as non-ischaemic (0) or having mild (1), moderate (2), or severe (3) ischaemia. Age, diabetes duration in years, and ulcer size were found to be associated with a longer mean ischaemia of increasing severity. A trend of reduction in the pulse palpation rates (70.4%, 50%, 8.5% to 0%; p < 0.01), ABI (1.1 ± 0.1, 0.86 ± 0.3, 0.68 ± 0.2, 0.47 ± 0.2, p < 0.01), TBI average values (0.90 ± 0.35, 0.62 ± 0.52, 0.50 ± 0.33, 0.10 ± 0.42, p < 0.01), wound healing success (88.7%, 57.7%, 40.7%, 12.9%; p < 0.01), and delay in weeks (Kaplan−Meier: log-rank 44.2, p < 0.01) was observed with increasing values of the ISS (0, 1, 2, and 3). The odds ratio for adverse outcomes increased for each additional level of ischaemia severity. Thus, we demonstrate that the ISS is useful in effectively predicting adverse outcomes for DFW.

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Considered by the World Health Organization a neglected public health problem, snakebites occur predominantly in tropical areas of Africa, Asia and Latin America. Approximately 2.7 million people worldwide are victims of snakebites each year, of which between 81,000 and 138,000 later die. Among the survivors, about 400,000 have some permanent disability. The entirety of the mechanism responsible for the venom pathophysiology is not completely understood. However, most of the venom toxins affect human hemostasis, as Bothrops venom components, which destabilize endothelium, affect platelet aggregation, blood clotting and fibrinolysis. Such effects are not only components of the clinical picture of patients who have suffered envenomation, but are also directly associated with the severity of the accident. Thus, it is of great importance to understand the main hemostatic alterations observed in envenomation’s by snakes of the genus Bothrops, which is predominant in South America. Therefore, this review describes the hemostatic changes that occur in Bothrops snakebites, to further improve the understanding of the general pathological mechanisms of snake envenomation’s and the correlation between endothelium dysfunction and coagulation/fibrinolysis systems as a result of the interaction of each class of venom components with human hemostasis. This knowledge is crucial for the development of new effective therapeutic approaches, attenuating the severity of snakebites and reducing amputations and deaths. Besides this, a molecular comprehension of the hemostatic alterations caused by each component of Bothrops venoms may help to identify new molecules and targets for therapeutic applications.

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RESUMEN Existe un número elevado de sistemas de clasificación, en pacientes con pie diabético. La importancia de una correcta clasificación de las lesiones, determina el tratamiento a realizar y puede aportar datos sobre el pronóstico de los pacientes respecto a posibles amputaciones. En los últimos años la tendencia es al desarrollo de sistemas más complejos, con uso de la tecnología. La clasificación de McCook y otros, ha sido la base para el tratamiento de pacientes con pie diabético en Cuba; a esta se sumó posteriormente, la clasificación hemodinámica y al comenzar a aplicar el Heberprot-P, se asoció la clasificación de Wagner, pero siempre con la óptica de McCook. Esta visión inicial y su posterior desarrollo han llevado a Cuba a lograr cifras de amputaciones mínimas, diferente a lo que ocurre en otros países. Este trabajo expresa la opinión de la autora acerca de los resultados del uso de las clasificaciones utilizadas en Cuba.

ABSTRACT There is a large number of classification systems in patients with diabetic foot. The importance of a correct classification of injuries determines the treatment to be carried out and can provide data on the prognosis of patients regarding possible amputations. In recent years the trend is towards the development of more complex systems, with the use of technology. The McCook et al. classification has been the basis for the treatment of patients with diabetic foot in Cuba; To this, the hemodynamic classification was added later and when the Heberprot-P began to be applied, the Wagner classification was associated, but always with McCook's optics. This initial vision and its subsequent development have led Cuba to achieve minimal amputation figures, different from what happens in other countries. This work expresses the author's opinion about the results using the classifications used in Cuba.

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To review the global and regional contributions of the Saint Elian Wound Score System (SEWSS) for the diabetic foot syndrome are the aim of this report. The update includes definitions, classification, diagnosis, treatment, prognosis, and prevention to reduce amputations and mortality. From its local use in Mexico to their global spread as part of the Clinical Practice Recommendations of the Diabetic Foot - International Diabetes Federation-2017, the SEWSS has achieved a significant acceptance for the diabetic foot problem care in Latin America. The concept includes the triage of severity grades system for the five types of Diabetic Foot Attack (DFA) due to ischemia, infection, edema, neuropathy (Charcot), or a mixed combination. Persons with Diabetes Mellitus may progress from the low-risk stage to foot attack that may remite to a high risk stage or conversely, evolve to a major amputation or death. The DFA progressive stages (I-III) are described in this review. The clinical details provided by the assessment of the 10 Saint Elian factors permit a rationale therapeutic approach with relevance in prevention and medical treatment and not focused only on wound care avoiding bias originated by specialty-related preferences.

El propósito de este informe es revisar las contribuciones regionales y mundiales del Sistema de San Elian para el Síndrome del Pie Diabético. Esta actualización incluye definiciones, clasificación, diagnóstico, pronóstico, tratamiento y prevención para reducir las amputaciones y su mortalidad. Desde su aplicación local en Mexico hasta su difusión mundial como parte fundamental de las Recomendaciones de Práctica Clínica del Pie Diabético- Federación Internacional de Diabetes 2017, el sistema ha alcanzado una aceptación significativa para la atención del Pie Diabético en Latinoamérica. El concepto incluye el triage urgente por la diferenciación de la gravedad que proporciona el sistema para los cinco tipos de Ataque Del Pie Diabético (APD): isquemico, infeccioso, edema grave, neuropatia (Charcot) y el mixto. Los pacientes con DM-2 pueden evolucionar desde un pie con bajo riesgo hasta un APD que logre remitir a una etapa de riesgo alto o que finalmente evolucione a amputacion mayor y/o muerte. Se describen las etapas evolutivas (I-III). La detallada evaluación que proporciona los 10 factores de San Elian permiten un abordaje terapéutico racional con relevancia en la prevención y el tratamiento médico sin centrarse erróneamente en el cuidado de heridas.

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Introduction: Critical limb ischemia is the most severe form of peripheral arterial disease. The anatomic and clinical severity of the disease is often heterogeneous and the choice of treatment is affected by different clinical and patient-related factors. The aim of the present study was to evaluate the mortality rate in a period of 1 year following minor and major amputations and compare the rates with that related to major amputation of lower limbs in 2005. Material and methods: A cross-sectional study evaluated minor and major amputations of the lower limbs at the School Hospital affiliated with the São Jose do Rio Preto School of Medicine in the period from July 2018 to July 2019. It was conducted using the charts of 233 patients who had undergone minor and major amputations of the lower limbs. Results: The 1-year mortality rate was analyzed among 108 patients submitted to minor amputations and the mortality rate of 80 patients submitted to major amputations in 2019 was compared to that among 50 patients submitted to major amputations in 2005. Conclusions: Significant 1-year mortality rates were found following minor and major amputations, with a higher rate among patients submitted to the latter procedure. Moreover, there has been no reduction in the mortality rate among patients submitted to major amputation in the past 15 years.

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Diabetic foot infections are frequent clinical problem. Properly managed, most can be cured, but many patients needlessly undergo amputations because of improper diagnostic and therapeutic approaches. The aim of this study is to evaluate patients with diabetic foot ulcer and their incidences. 320 cases were taken for our study of deferent gender and age group, date of study was from January 2019 to the end of December 2019, study was done in Maysan Endocrine and Diabtology Center. Most cases were males about (59%) of young age group, most of the cases occurred in extreme weathers. Diabetic foot ulcers are preventable lesions, males at active age group more prone to develop diabetic foot lesions because they are more liable to expose to minor trauma during work. Health education for protection of diabetic patients from serious DFU complications

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