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1.
Surgery ; 174(4): 1063-1070, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37500410

RESUMO

BACKGROUND: Traumatic hemothorax is common, and management failure leads to worse outcomes. We sought to determine predictive factors and understand the role of trauma center performance in hemothorax management failure. METHODS: We prospectively examined initial hemothorax management (observation, pleural drainage, surgery) and failure requiring secondary intervention in 17 trauma centers. We defined hemothorax management failure requiring secondary intervention as thrombolytic administration, tube thoracostomy, image-guided drainage, or surgery after failure of the initial management strategy at the discretion of the treating trauma surgeon. Patient-level predictors of hemothorax management failure requiring secondary intervention were identified for 2 subgroups: initial observation and immediate pleural drainage. Trauma centers were divided into quartiles by hemothorax management failure requiring secondary intervention rate and hierarchical logistic regression quantified variation. RESULTS: Of 995 hemothoraces in 967 patients, 186 (19%) developed hemothorax management failure requiring secondary intervention. The frequency of hemothorax management failure requiring secondary intervention increased from observation to pleural drainage to surgical intervention (12%, 22%, and 35%, respectively). The number of ribs fractured (odds ratio 1.12 per fracture; 95% confidence interval 1.00-1.26) and pulmonary contusion (odds ratio 2.25, 95% confidence interval 1.03-4.91) predicted hemothorax management failure requiring secondary intervention in the observation subgroup, whereas chest injury severity (odds ratio 1.58; 95% confidence interval 1.17-2.12) and initial hemothorax volume evacuated (odds ratio 1.10 per 100 mL; 95% confidence interval 1.05-1.16) predicted hemothorax management failure requiring secondary intervention after pleural drainage. After adjusting for patient characteristics in the logistic regression model for hemothorax management failure requiring secondary intervention, patients treated at high hemothorax management failure requiring secondary intervention trauma centers were 6 times more likely to undergo an intervention after initial hemothorax management failure than patients treated in low hemothorax management failure requiring secondary intervention trauma centers (odds ratio 6.18, 95% confidence interval 3.41-11.21). CONCLUSION: Failure of initial management of traumatic hemothorax is common and highly variable across trauma centers. Assessing patient selection for a given management strategy and center-level practices represent opportunities to improve outcomes from traumatic hemothorax.


Assuntos
Fraturas Ósseas , Traumatismos Torácicos , Humanos , Hemotórax/diagnóstico , Hemotórax/etiologia , Hemotórax/cirurgia , Estudos Prospectivos , Estudos de Coortes , Traumatismos Torácicos/terapia , Traumatismos Torácicos/cirurgia , Tubos Torácicos , Fraturas Ósseas/complicações
2.
Pharm Biol ; 57(1): 269-279, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31007116

RESUMO

CONTEXT: Bauhinia L. species, including Bauhinia holophylla (Bong.) Steud. (Fabaceae), have traditionally been used to treat diabetes. Bauhinia is a complex botanical genus, and the indiscriminate use of the diverse Bauhinia species is reflected in the experimental divergence of their medicinal potential. OBJECTIVE: The hypoglycaemic and hypolipidaemic effects, molecular mechanism of action and phytochemical properties of an authentic extract of B. holophylla leaves were evaluated. MATERIALS AND METHODS: A phytochemical study of a 70% EtOH extract was performed using FIA-ESI-IT-MS/MSn and HPLC-PAD-ESI-IT-MS. The extract (200 or 400 mg/kg b.w.) was administered for 14 days to streptozotocin-induced diabetic Swiss mice. Glucose tolerance and insulin sensitivity, blood parameters, gene and protein expression, and the in vivo and in vitro inhibition of intestinal glucosidases were assessed. RESULTS: HPLC-PAD-ESI-IT-MS analysis identified flavonoid derivatives of quercetin, myricetin, luteolin and kaempferol. Treatment with 400 mg/kg of the extract reduced blood glucose (269.0 ± 32.4 mg/dL vs. 468.0 ± 32.2 mg/dL for diabetic animals), improved glucose tolerance, decreased cholesterol and triglyceride levels, and increased the mRNA expression of proteins involved in glucogenesis in the liver and muscle, such as PI3-K/Akt, GS, GSK3-ß (ser-9), AMPK and Glut4. The activity of intestinal maltase was inhibited in vitro (IC50: 43.0 µg/mL for the extract compared to 516.4 µg/mL for acarbose) and in vivo. DISCUSSION AND CONCLUSIONS: Treatment with B. holophylla was associated with a marked hypoglycaemic effect through the stimulation of glycogenesis and inhibition of gluconeogenesis and intestinal glucose absorption, without increasing basal insulinaemia.


Assuntos
Bauhinia/química , Glicemia/biossíntese , Diabetes Mellitus Experimental/tratamento farmacológico , Glicogênio Sintase Quinase 3 beta/antagonistas & inibidores , Hipoglicemiantes/uso terapêutico , Extratos Vegetais/uso terapêutico , Animais , Diabetes Mellitus Experimental/sangue , Relação Dose-Resposta a Droga , Hipoglicemiantes/isolamento & purificação , Masculino , Camundongos , Extratos Vegetais/isolamento & purificação , Estreptozocina
3.
J Med Chem ; 59(15): 7075-88, 2016 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-27396732

RESUMO

Schistosomiasis is a debilitating neglected tropical disease, caused by flatworms of Schistosoma genus. The treatment relies on a single drug, praziquantel (PZQ), making the discovery of new compounds extremely urgent. In this work, we integrated QSAR-based virtual screening (VS) of Schistosoma mansoni thioredoxin glutathione reductase (SmTGR) inhibitors and high content screening (HCS) aiming to discover new antischistosomal agents. Initially, binary QSAR models for inhibition of SmTGR were developed and validated using the Organization for Economic Co-operation and Development (OECD) guidance. Using these models, we prioritized 29 compounds for further testing in two HCS platforms based on image analysis of assay plates. Among them, 2-[2-(3-methyl-4-nitro-5-isoxazolyl)vinyl]pyridine and 2-(benzylsulfonyl)-1,3-benzothiazole, two compounds representing new chemical scaffolds have activity against schistosomula and adult worms at low micromolar concentrations and therefore represent promising antischistosomal hits for further hit-to-lead optimization.


Assuntos
Descoberta de Drogas , Relação Quantitativa Estrutura-Atividade , Schistosoma mansoni/efeitos dos fármacos , Esquistossomose/tratamento farmacológico , Esquistossomicidas/farmacologia , Animais , Relação Dose-Resposta a Droga , Avaliação Pré-Clínica de Medicamentos , Humanos , Modelos Moleculares , Estrutura Molecular , Esquistossomicidas/síntese química , Esquistossomicidas/química
4.
J Chem Inf Model ; 56(7): 1357-72, 2016 07 25.
Artigo em Inglês | MEDLINE | ID: mdl-27253773

RESUMO

Schistosomiasis is a neglected tropical disease that affects millions of people worldwide. Thioredoxin glutathione reductase of Schistosoma mansoni (SmTGR) is a validated drug target that plays a crucial role in the redox homeostasis of the parasite. We report the discovery of new chemical scaffolds against S. mansoni using a combi-QSAR approach followed by virtual screening of a commercial database and confirmation of top ranking compounds by in vitro experimental evaluation with automated imaging of schistosomula and adult worms. We constructed 2D and 3D quantitative structure-activity relationship (QSAR) models using a series of oxadiazoles-2-oxides reported in the literature as SmTGR inhibitors and combined the best models in a consensus QSAR model. This model was used for a virtual screening of Hit2Lead set of ChemBridge database and allowed the identification of ten new potential SmTGR inhibitors. Further experimental testing on both shistosomula and adult worms showed that 4-nitro-3,5-bis(1-nitro-1H-pyrazol-4-yl)-1H-pyrazole (LabMol-17) and 3-nitro-4-{[(4-nitro-1,2,5-oxadiazol-3-yl)oxy]methyl}-1,2,5-oxadiazole (LabMol-19), two compounds representing new chemical scaffolds, have high activity in both systems. These compounds will be the subjects for additional testing and, if necessary, modification to serve as new schistosomicidal agents.


Assuntos
Anti-Helmínticos/química , Anti-Helmínticos/farmacologia , Desenho de Fármacos , Relação Quantitativa Estrutura-Atividade , Schistosoma mansoni/efeitos dos fármacos , Schistosoma mansoni/enzimologia , Animais , Anti-Helmínticos/metabolismo , Avaliação Pré-Clínica de Medicamentos , Conformação Molecular , Simulação de Acoplamento Molecular , Complexos Multienzimáticos/antagonistas & inibidores , Complexos Multienzimáticos/química , Complexos Multienzimáticos/metabolismo , NADH NADPH Oxirredutases/antagonistas & inibidores , NADH NADPH Oxirredutases/química , NADH NADPH Oxirredutases/metabolismo
5.
Rev Col Bras Cir ; 42(4): 231-7, 2015.
Artigo em Inglês, Português | MEDLINE | ID: mdl-26517798

RESUMO

OBJECTIVE: to investigate the effect of standardized interventions in the management of tube thoracostomy patients and to assess the independent effect of each intervention. METHODS: A chest tube management protocol was assessed in a retrospective cohort study. The tube thoracostomy protocol (TTP) was implemented in August 2012, and consisted of: antimicrobial prophylaxis, chest tube insertion in the operating room (OR), admission post chest tube thoracostomy (CTT) in a hospital floor separate from the emergency department (ED), and daily respiratory therapy (RT) sessions post-CTT. The inclusion criteria were, hemodynamic stability, patients between the ages of 15 and 59 years, and injury severity score (ISS) < 17. All patients had isolated injuries to the chest wall, lung, and pleura. During the study period 92 patients were managed according to the standardized protocol. The outcomes of those patients were compared to 99 patients treated before the TTP. Multivariate logistic regression analysis was performed to assess the independent effect of each variable of the protocol on selected outcomes. RESULTS: Demographics, injury severity, and trauma mechanisms were similar among the groups. As expected, protocol compliance increased after the implementation of the TTP. There was a significant reduction (p<0.05) in the incidence of retained hemothoraces, empyemas, pneumonias, surgical site infections, post-procedural complications, hospital length of stay, and number of chest tube days. Respiratory therapy was independently linked to significant reduction (p<0.05) in the incidence of seven out of eight undesired outcomes after CTT. Antimicrobial prophylaxis was linked to a significant decrease (p<0.05) in retained hemothoraces, despite no significant (p<0.10) reductions in empyema and surgical site infections. Conversely, OR chest tube insertion was associated with significant (p<0.05) reduction of both complications, and also significantly decreased the incidence of pneumonias. CONCLUSION: Implementation of a TTP effectively reduced complications after CTT in trauma patients.


Assuntos
Tubos Torácicos , Toracostomia/instrumentação , Ferimentos e Lesões/cirurgia , Adulto , Protocolos Clínicos , Estudos de Coortes , Feminino , Humanos , Masculino , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
6.
Rev Col Bras Cir ; 42(4): 224-30, 2015.
Artigo em Inglês, Português | MEDLINE | ID: mdl-26517797

RESUMO

OBJECTIVE: to analyze the associated factors with empyema in patients with post-traumatic retained hemothorax. METHODS: prospective observational study. Data were collected in patients undergoing PD during emergency duty. Variables analyzed were age, sex, mechanism of injury, side of the chest injury, intrathoracic complications of RH, laparotomy, specific injuries, rib fractures, trauma scores, days to diagnosis, diagnostic method of RH, primary indication of PD, initial volume drained, length of the first tube removal, surgical procedure. Cumulative incidence of empyema, pneumonia and pulmonary contusion and the proportion of patients with empyema or without empyema in each category of each variable analyzed were obtained. RESULTS: the cumulative incidence of PD among trauma patients was 1.83% and the RH among those with PD was 10.63%. There were 20 cases of empyema (32.8%). Most were male in the age from 20 to 29, victims of injury by firearm on the left side of the thorax. The incidence of empyema in patients with injury by firearms was lower compared to those with stab wound or blunt trauma; higher among those with drained volume between 300 and 599 ml. The median hospital lenght of stay was higher among those with empyema. CONCLUSION: the incidence of PD was 1.83% and RH was 10.63%, these results are consistent with the low severity of the patients involved in this study and consistent with the literature. The incidence of empyema proved to be negatively associated with the occurrence of injury by firearms and positively associated with a drained volume between 300 and 599 ml, compared with lower or higher volumes.


Assuntos
Empiema/etiologia , Hemotórax/complicações , Traumatismos Torácicos/complicações , Adolescente , Adulto , Idoso , Empiema/epidemiologia , Feminino , Hemotórax/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
7.
Rev. Col. Bras. Cir ; 42(4): 224-230, July-Aug. 2015. tab
Artigo em Inglês | LILACS | ID: lil-763359

RESUMO

ABSTRACTObjective:to analyze the associated factors with empyema in patients with post-traumatic retained hemothorax.Methods:prospective observational study. Data were collected in patients undergoing PD during emergency duty. Variables analyzed were age, sex, mechanism of injury, side of the chest injury, intrathoracic complications of RH, laparotomy, specific injuries, rib fractures, trauma scores, days to diagnosis, diagnostic method of RH, primary indication of PD, initial volume drained, length of the first tube removal, surgical procedure. Cumulative incidence of empyema, pneumonia and pulmonary contusion and the proportion of patients with empyema or without empyema in each category of each variable analyzed were obtained.Results: the cumulative incidence of PD among trauma patients was 1.83% and the RH among those with PD was 10.63%. There were 20 cases of empyema (32.8%). Most were male in the age from 20 to 29, victims of injury by firearm on the left side of the thorax. The incidence of empyema in patients with injury by firearms was lower compared to those with stab wound or blunt trauma; higher among those with drained volume between 300 and 599 ml. The median hospital lenght of stay was higher among those with empyema.Conclusion:the incidence of PD was 1.83% and RH was 10.63%, these results are consistent with the low severity of the patients involved in this study and consistent with the literature. The incidence of empyema proved to be negatively associated with the occurrence of injury by firearms and positively associated with a drained volume between 300 and 599 ml, compared with lower or higher volumes.


RESUMOObjetivo:analisar os fatores associados ao empiema em pacientes com hemotórax retido pós-traumático.Métodos:estudo prospectivo observacional. Os dados foram coletados de pacientes submetidos à drenagem pleural de emergência. Foram analisadas: idade, sexo, mecanismo de trauma, lado da lesão torácica, complicações intratorácicas decorrentes do hemotórax retido, laparotomia, lesões específicas, fratura de arcos costais, índices de trauma, dias até o diagnóstico, método diagnóstico do HR, indicação primária da drenagem pleural, volume inicial drenado, dias de permanência do primeiro dreno, procedimento cirúrgico. Obteve-se a incidencia acumulada de empiema, pneumonia e contusão pulmonar e a incidência de empiema em cada categoria das variaìveis analisadas.Resultados:a incidência acumulada de drenagem pleural por trauma foi 1,83% e a de hemotórax retido entre aqueles com derrame pleural foi de 10,63%. Houve 20 casos de empiema (32,8%). A maioria tinha entre 20 e 29 anos, era do sexo masculino e sofreu ferimento por arma de fogo. A incidência de empiema entre pacientes com ferimento por arma de fogo foi inferior aos demais mecanismos; superior entre aqueles com volume drenado entre 300 e 599 ml. O tempo mediano de permanência hospitalar foi maior nos pacientes com empiema.Conclusão:as incidências de derrame pleural e hemotórax retido entre aqueles com DP nessa amostra de baixa gravidade dos pacientes foram, respectivamente, 1,83% e 10,63%. A incidência de empiema revelou-se negativamente associada à ocorrência de ferimento por arma de fogo e positivamente associada a volume drenado entre 300 e 599 ml, bem como, ao tempo mediano de permanência hospitalar.


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Idoso , Adulto Jovem , Traumatismos Torácicos/complicações , Empiema/etiologia , Hemotórax/complicações , Estudos Prospectivos , Empiema/epidemiologia , Hemotórax/etiologia , Pessoa de Meia-Idade
8.
Acta Cir Bras ; 30(3): 170-7, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25790004

RESUMO

PURPOSE: To investigate hemostatic effects of supplementary factor XIII and desmopressin (DDAVP) in resuscitation of uncontrolled bleeding. METHODS: Fifty-four rabbits were randomized in nine groups: G1: Sham; G2: FXIII and normotensive resuscitation (NBP); G3: FXIII and permissive hypotension (PH) (MAP 60% baseline); G4: FXIII/DDAVP/NBP; G5: FXIII/DDAVP/PH; G6: NBP only; G7: FXIII no hemorrhage; G8: FXIII/DDAVP no hemorrhage; G9: PH only. Thromboelastometry and intra-abdominal blood loss were assessed. Scanning electron microscopy (EM) of the clots was performed. RESULTS: Compared to Sham, only G8 (FXIII/DDAVP w/o hemorrhage) showed clotting time (CT) significantly lower (p<0.05). NBP alone (G6) resulted in significantly prolonged CT compared to G2, G3 and G5 (p<0.05). Similarly, median alpha angle was significantly larger in G3,4,5, and 9 compared to G6 (p<0.05). Area under the curve was significantly greater in G5 than G2. Intra-abdominal blood loss was lower in G5 and G9 compared to G2 and G6. FXIII/DDAVP and PH resulted in more robust fibrin mesh by EM. CONCLUSIONS: Normotensive resuscitation provokes more bleeding and worsens coagulation compared to pH, that is partially reversed by factor XIII and desmopressin. FXIII and DDAVP can synergistically improve coagulation. Permissive hypotension reduces bleeding regardless of those agents.


Assuntos
Desamino Arginina Vasopressina/uso terapêutico , Fator XIII/uso terapêutico , Hemostasia/efeitos dos fármacos , Hemostáticos/uso terapêutico , Ressuscitação/métodos , Choque Hemorrágico/tratamento farmacológico , Animais , Adesivo Tecidual de Fibrina/uso terapêutico , Hemodinâmica/efeitos dos fármacos , Masculino , Microscopia Eletrônica de Varredura , Coelhos , Distribuição Aleatória , Reprodutibilidade dos Testes , Fatores de Tempo , Resultado do Tratamento
9.
Acta cir. bras ; Acta cir. bras;30(3): 170-177, 03/2015. graf
Artigo em Inglês | LILACS | ID: lil-741040

RESUMO

PURPOSE: To investigate hemostatic effects of supplementary factor XIII and desmopressin (DDAVP) in resuscitation of uncontrolled bleeding. METHODS: Fifty-four rabbits were randomized in nine groups: G1: Sham; G2: FXIII and normotensive resuscitation (NBP); G3: FXIII and permissive hypotension (PH) (MAP 60% baseline); G4: FXIII/DDAVP/NBP; G5: FXIII/DDAVP/PH; G6: NBP only; G7: FXIII no hemorrhage; G8: FXIII/DDAVP no hemorrhage; G9: PH only. Thromboelastometry and intra-abdominal blood loss were assessed. Scanning electron microscopy (EM) of the clots was performed. RESULTS: Compared to Sham, only G8 (FXIII/DDAVP w/o hemorrhage) showed clotting time (CT) significantly lower (p<0.05). NBP alone (G6) resulted in significantly prolonged CT compared to G2, G3 and G5 (p<0.05). Similarly, median alpha angle was significantly larger in G3,4,5, and 9 compared to G6 (p<0.05). Area under the curve was significantly greater in G5 than G2. Intra-abdominal blood loss was lower in G5 and G9 compared to G2 and G6. FXIII/DDAVP and PH resulted in more robust fibrin mesh by EM. CONCLUSIONS: Normotensive resuscitation provokes more bleeding and worsens coagulation compared to pH, that is partially reversed by factor XIII and desmopressin. FXIII and DDAVP can synergistically improve coagulation. Permissive hypotension reduces bleeding regardless of those agents. .


Assuntos
Centros Médicos Acadêmicos/estatística & dados numéricos , Escolha da Profissão , Docentes de Medicina/estatística & dados numéricos , Internato e Residência , Internato e Residência/estatística & dados numéricos , Radiologia/educação , Radiologia , North Carolina , Radiologia/estatística & dados numéricos
10.
Toxicon ; 94: 45-9, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25449094

RESUMO

Thromboelastometry was used to evaluate blood coagulation in anesthetized rats after intravenous administration of Tityus serrulatus scorpion venom (Tx). Tracheostomy followed by catheterization of the left jugular vein and right carotid artery were performed for Tx or Ringer's lactate solution injection and blood sample harvesting, respectively. Blood samples were obtained at the beginning of the experiments (baseline) and at two, five, 15, 30, and 60 min after intoxication. The following coagulation parameters were analyzed: CT (Clotting Time), CFT (Clotting Formation Time), Alpha Angle (α), MCF (Maximum Clot Firmness) and TPI (Thrombodynamic Potential Index). Toxin-induced hypercoagulability was demonstrated at the 15 and 60 min. We hypothesize Tx-induced hypercoagulability and enhanced clot formation could be explained by catecholamine release, systemic inflammatory response, and complement system activation, at least in the first hour after envenomation. Further studies are needed to determine the molecular mechanism of Tx-induced coagulopathy.


Assuntos
Coagulação Sanguínea/efeitos dos fármacos , Venenos de Escorpião/toxicidade , Animais , Masculino , Ratos , Ratos Wistar , Tromboelastografia
11.
Acta cir. bras. ; 30(3): 170-177, 2015.
Artigo em Inglês | VETINDEX | ID: vti-12022

RESUMO

PURPOSE: To investigate hemostatic effects of supplementary factor XIII and desmopressin (DDAVP) in resuscitation of uncontrolled bleeding. METHODS: Fifty-four rabbits were randomized in nine groups: G1: Sham; G2: FXIII and normotensive resuscitation (NBP); G3: FXIII and permissive hypotension (PH) (MAP 60% baseline); G4: FXIII/DDAVP/NBP; G5: FXIII/DDAVP/PH; G6: NBP only; G7: FXIII no hemorrhage; G8: FXIII/DDAVP no hemorrhage; G9: PH only. Thromboelastometry and intra-abdominal blood loss were assessed. Scanning electron microscopy (EM) of the clots was performed. RESULTS: Compared to Sham, only G8 (FXIII/DDAVP w/o hemorrhage) showed clotting time (CT) significantly lower (p<0.05). NBP alone (G6) resulted in significantly prolonged CT compared to G2, G3 and G5 (p<0.05). Similarly, median alpha angle was significantly larger in G3,4,5, and 9 compared to G6 (p<0.05). Area under the curve was significantly greater in G5 than G2. Intra-abdominal blood loss was lower in G5 and G9 compared to G2 and G6. FXIII/DDAVP and PH resulted in more robust fibrin mesh by EM. CONCLUSIONS: Normotensive resuscitation provokes more bleeding and worsens coagulation compared to pH, that is partially reversed by factor XIII and desmopressin. FXIII and DDAVP can synergistically improve coagulation. Permissive hypotension reduces bleeding regardless of those agents.(AU)


Assuntos
Animais , Coelhos/classificação , Hemorragia/complicações , Coagulação Sanguínea , Hemostasia
12.
Arq. bras. neurocir ; 33(3): 213-218, set. 2014. tab
Artigo em Português | LILACS | ID: lil-756176

RESUMO

Objetivos: Avaliar a relação da PIC com o crescimento de lesões e morbimortalidade em pacientes Marshall II e determinar a necessidade de sua monitorização. Método: Estudo de coorte observacional prospectivo em pacientes com TCE grave classificados como Marshall II. Resultados: Setenta pacientes foram divididos em dois grupos baseados na PIC; G1: PIC ≤ 20 mmHg (49 pacientes) e G2 PIC > 20 mmHg (21 pacientes). Os achados mais comuns foram hemorragias subaracnóideas e contusões.A mortalidade foi maior em G2 que em G1 (OR: 11,7) (IC 95%: 2,2 a 63,1). A mediana da Escala de Desfecho de Glasgow após 90 dias foi de 2 para o G2 e de 5 para o G1. O surgimento ou progressões de lesões ocorreram em 71% dos pacientes no G2 contra 10% no G1 (p < 0,05). Em comparação ao G1, o OR de um novo achado na TC foi 22 vezes maior no G2 (IC 95%: 5,02 a 106,9). Dois pacientes do G2 precisaram de cirurgia e nenhum do G1. Conclusões: Pacientes Marshall II, com hipertensão intracraniana, apresentam maior risco para crescimento de lesões na TC de controle, pior prognóstico e maior mortalidade que aqueles sem hipertensão. A monitorização desses pacientes foi definitiva para determinar o prognóstico. Pacientes Marshall II devem ser monitorados.


Objectives: Evaluate the relationship of intracranial hypertension with an increase of brain lesions, morbimortality in Marshall II patients and determine whether these patients need to have ICP monitored. Method: Prospective observational cohort study on severe TBI patients (GCS ≤ 8), Marshall CT classification II. Results: A total of 70 patients were divided into two groups based on ICP; G1: ICP ≤ 20 mmHg (49 patients) and G2 ICP > 20 mmHg (21 patients). The most common CT findings were: subarachnoid hemorrhages and contusions. Mortality was higher in G2 than in G1 (OR: 11.7) (95% CI: 2.2 to 63.1). The median Glasgow Outcome Score after 90 days was 2 for G2 and 5 to G1. The onset or progression of lesions occurred in 71% of patients in G2, against 10% in G1 (p < 0.05). Compared toG1, the OR for a new finding on CT was twenty-two times higher in G2 (95% CI: 5.02 to 106.9). Two G2 patients needed surgery and none of the G1. Conclusions: Severe TBI patients with Marshall score II and intracranial hypertension, are at greater risk for new CT abnormalities, worse prognosis, and higher mortality than those with no hypertension. ICP monitoring was crucial to define prognosis. Severe TBI Marshall II patients should be monitored.


Assuntos
Escala de Coma de Glasgow , Mortalidade , Hipertensão Intracraniana/prevenção & controle , Hemorragia Subaracnoídea Traumática/complicações , Lesões Encefálicas Traumáticas/terapia , Monitorização Fisiológica , Estudos Prospectivos , Interpretação Estatística de Dados , Estudo Observacional , Lesões Encefálicas Traumáticas/diagnóstico por imagem
13.
Rev Col Bras Cir ; 41(3): 228-31, 2014.
Artigo em Inglês, Português | MEDLINE | ID: mdl-25140657

RESUMO

Duodenal trauma is an infrequent injury, but linked to high morbidity and mortality. Surgical management of duodenal injuries is dictated by: patient's hemodynamic status, injury severity, time of diagnosis, and presence of concomitant injuries. Even though most cases can be treated with primary repair, some experts advocate adjuvant procedures. Pyloric exclusion (PE) has emerged as an ancillary method to protect suture repair in more complex injuries. However, the effectiveness of this procedure is debatable. The "Evidence Based Telemedicine - Trauma & Acute Care Surgery" (EBT-TACS) Journal Club performed a critical appraisal of the literature and selected three relevant publications on the indications for PE in duodenal trauma. The first study retrospectively compared 14 cases of duodenal injuries greater than grade II treated by PE, with 15 cases repaired primarily, all of which penetrating. Results showed that PE did not improve outcome. The second study, also retrospective, compared primary repair (34 cases) with PE (16 cases) in blunt and penetrating grade > II duodenal injuries. The authors concluded that PE was not necessary in all cases. The third was a literature review on the management of challenging duodenal traumas. The author of that study concluded that PE is indicated for anastomotic leak management after gastrojejunostomies. In conclusion, the choice of the surgical procedure to treat duodenal injuries should be individualized. Moreover, there is insufficient high quality scientific evidence to support the abandonment of PE in severe duodenal injuries with extensive tissue loss.


Assuntos
Duodeno/lesões , Duodeno/cirurgia , Piloro , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Humanos , Escala de Gravidade do Ferimento
14.
Rev. Col. Bras. Cir ; 41(3): 228-231, May-Jun/2014.
Artigo em Inglês | LILACS | ID: lil-719482

RESUMO

Duodenal trauma is an infrequent injury, but linked to high morbidity and mortality. Surgical management of duodenal injuries is dictated by: patient's hemodynamic status, injury severity, time of diagnosis, and presence of concomitant injuries. Even though most cases can be treated with primary repair, some experts advocate adjuvant procedures. Pyloric exclusion (PE) has emerged as an ancillary method to protect suture repair in more complex injuries. However, the effectiveness of this procedure is debatable. The "Evidence Based Telemedicine - Trauma & Acute Care Surgery" (EBT-TACS) Journal Club performed a critical appraisal of the literature and selected three relevant publications on the indications for PE in duodenal trauma. The first study retrospectively compared 14 cases of duodenal injuries greater than grade II treated by PE, with 15 cases repaired primarily, all of which penetrating. Results showed that PE did not improve outcome. The second study, also retrospective, compared primary repair (34 cases) with PE (16 cases) in blunt and penetrating grade > II duodenal injuries. The authors concluded that PE was not necessary in all cases. The third was a literature review on the management of challenging duodenal traumas. The author of that study concluded that PE is indicated for anastomotic leak management after gastrojejunostomies. In conclusion, the choice of the surgical procedure to treat duodenal injuries should be individualized. Moreover, there is insufficient high quality scientific evidence to support the abandonment of PE in severe duodenal injuries with extensive tissue loss.


O trauma duodenal é incomum, mas possui alta morbimortalidade. As condições clínicas dos pacientes, gravidade das lesões, tempo de diagnóstico e lesões associadas influenciam na escolha do procedimento operatório. A maioria das lesões duodenais é tratada com reparo primário. Procedimentos adjuvantes para proteger a linha de sutura e evitar deiscência podem ser úteis em lesões complexas. Embora a exclusão pilórica (EP) seja utilizada em lesões duodenais graves, há controvérsia quanto a sua necessidade. A reunião "Telemedicina Baseada em Evidências - Cirurgia do Trauma e Emergência" (TBE-CiTE) revisou a literatura e selecionou três publicações relevantes sobre as indicações de EP no trauma duodenal. O primeiro estudo, retrospectivo, comparou 14 pacientes com ferimentos penetrantes duodenais grau > II, tratados com EP, com 15 pacientes semelhantes tratados com reparo primário; não houve diferença nos resultados. O segundo, também retrospectivo, comparou o reparo primário (34 casos) com EP (16 casos), em lesões duodenais contusas ou penetrantes grau > II. Os autores concluíram que a EP não é necessária para todos os pacientes, apesar de lesões duodenais graves. O terceiro estudo constituiu-se de revisão da literatura sobre os desafios do tratamento dos traumatismos duodenais. Na experiência do autor, a EP é útil nos casos de fístula de anastomoses gastrojejunais. Conclui-se que a escolha do procedimento operatório no tratamento das lesões duodenais deve ser individualizada. Não há evidência cientifica de boa qualidade para justificar o abandono da EP no tratamento das lesões duodenais graves com grande perda tecidual.


Assuntos
Humanos , Duodeno/lesões , Duodeno/cirurgia , Piloro , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Escala de Gravidade do Ferimento
15.
Rev Col Bras Cir ; 41(1): 75-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24770779

RESUMO

The meeting of the Publication "Evidence Based Telemedicine - Trauma and Emergency Surgery" (TBE-CiTE), through literature review, selected three recent articles on the treatment of victims stab wounds to the abdominal wall. The first study looked at the role of computed tomography (CT) in the treatment of patients with stab wounds to the abdominal wall. The second examined the use of laparoscopy over serial physical examinations to evaluate patients in need of laparotomy. The third did a review of surgical exploration of the abdominal wound, use of diagnostic peritoneal lavage and CT for the early identification of significant lesions and the best time for intervention. There was consensus to laparotomy in the presence of hemodynamic instability or signs of peritonitis, or evisceration. The wound should be explored under local anesthesia and if there is no injury to the aponeurosis the patient can be discharged. In the presence of penetration into the abdominal cavity, serial abdominal examinations are safe without CT. Laparoscopy is well indicated when there is doubt about any intracavitary lesion, in centers experienced in this method.


Assuntos
Traumatismos Abdominais/cirurgia , Parede Abdominal/cirurgia , Ferimentos Perfurantes/cirurgia , Humanos , Laparoscopia , Laparotomia , Guias de Prática Clínica como Assunto
16.
Rev. Col. Bras. Cir ; 41(1): 75-79, Jan-Feb/2014.
Artigo em Inglês | LILACS | ID: lil-707272

RESUMO

The meeting of the Publication "Evidence Based Telemedicine - Trauma and Emergency Surgery" (TBE-CiTE), through literature review, selected three recent articles on the treatment of victims stab wounds to the abdominal wall. The first study looked at the role of computed tomography (CT) in the treatment of patients with stab wounds to the abdominal wall. The second examined the use of laparoscopy over serial physical examinations to evaluate patients in need of laparotomy. The third did a review of surgical exploration of the abdominal wound, use of diagnostic peritoneal lavage and CT for the early identification of significant lesions and the best time for intervention. There was consensus to laparotomy in the presence of hemodynamic instability or signs of peritonitis, or evisceration. The wound should be explored under local anesthesia and if there is no injury to the aponeurosis the patient can be discharged. In the presence of penetration into the abdominal cavity, serial abdominal examinations are safe without CT. Laparoscopy is well indicated when there is doubt about any intracavitary lesion, in centers experienced in this method.


A reunião de Revista "Telemedicina Baseada em Evidências - Cirurgia do Trauma e Emergência" (TBE-CiTE) através de revisão da literatura selecionou três artigos recentes sobre o tratamento do paciente vítima de agressão por arma branca na parede abdominal. O primeiro trabalho observou o papel da tomografia computadorizada (TC) no tratamento do paciente com agressão por arma branca na parede abdominal. O segundo analisou o uso da laparoscopia diagnóstica em detrimento do exame físico seriado para avaliar os pacientes com necessidade de laparotomia terapêutica. O terceiro fez uma avaliação da exploração cirúrgica do ferimento abdominal, uso do lavado peritoneal diagnóstico e TC na identificação precoce de lesões significativas e o melhor momento para intervenção. Houve consenso para a indicação de laparotomia na presença de instabilidade hemodinâmica, ou sinais de peritonite, ou evisceração. O ferimento deve ser explorado sob anestesia local e se não houver lesão da aponeurose o doente pode receber alta. Na presença de penetração na cavidade abdominal, o exame seriado do abdome é seguro, sem a necessidade de TC. A laparoscopia está bem indicada quando existe dúvida de lesão intracavitária em centros com experiência nesse método.


Assuntos
Humanos , Traumatismos Abdominais/cirurgia , Parede Abdominal/cirurgia , Ferimentos Perfurantes/cirurgia , Laparoscopia , Laparotomia , Guias de Prática Clínica como Assunto
17.
Rev Col Bras Cir ; 39(5): 444-6, 2012.
Artigo em Português | MEDLINE | ID: mdl-23174800

RESUMO

We report a case of a secondary projectile emanated from a fractured human bone from a victim of a bomb explosion. We also refer to the potential of transmition of blood-borne or body fluid pathogens by this mechanism of injury.


Assuntos
Traumatismos por Explosões , Osso e Ossos , Explosões , Ferimentos Penetrantes/etiologia , Adolescente , Traumatismos por Explosões/etiologia , Osso e Ossos/lesões , Humanos , Masculino
18.
Rev. Col. Bras. Cir ; 39(5): 444-446, set.-out. 2012. ilus
Artigo em Português | LILACS | ID: lil-656261

RESUMO

We report a case of a secondary projectile emanated from a fractured human bone from a victim of a bomb explosion. We also refer to the potential of transmition of blood-borne or body fluid pathogens by this mechanism of injury.


Assuntos
Adolescente , Humanos , Masculino , Traumatismos por Explosões , Osso e Ossos , Explosões , Ferimentos Penetrantes/etiologia , Traumatismos por Explosões/etiologia , Osso e Ossos/lesões
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