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1.
Microsc Res Tech ; 86(8): 966-990, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37334760

RESUMO

Medicinal plants are richest source of chemical compounds that can be used to evolve novel drugs. According to World Health Organization (WHO), in developing countries more than 3.5 billion people relay on herbal drugs for their primary health care. In the present study, an attempt was carried out to authenticate some selected medicinal plants (Fagonia cretica L., Peganum harmala L., Tribulus terrestris L., Chrozophora tinctoria L. Raf. and Ricinus communis L.) from family Zygophyllaceae and Euphorbiaceae using light and scanning electron macroscopic techniques. Macroscopic evaluation and comparative anatomy (Light Microscopy) of the root and fruits revealed great diversity in macro and microscopic features. Scanning electron microscopy (SEM) of root powder showed non-glandular trichomes, stellate trichomes, parenchyma cells and vessels. Fruits SEM exhibited non-glandular trichomes, glandular trichomes, stellate trichomes, peltate trichomes and mesocarp cells. Both macroscopic and microscopic evaluation plays a crucial role in the correct substantiation and validation of novel sources. These findings can serve as an essential source of information to accomplish the authenticity and to appraise the quality and purity of the herbal drugs in accordance to WHO guidelines. These parameters can be used to distinguish the selected plants from their commonly used adulterants. RESEARCH HIGHLIGHTS: In the current work, five plants (Fagonia cretica L., Peganum harmala L., Tribulus terrestris L., Chrozophora tinctoria L. Raf. and Ricinus communis L.) from Zygophyllaceae and Euphorbiaceae were investigated for macroscopy and microscopy (LM & SEM) for the first time. Macroscopic and microscopic evaluation disclosed great diversity in morphology and histology. Microscopy is the backbone of standardization process. Current study helped in correct identification and quality assurance of the plant materials. Their statistical investigation may possess great potency for plant taxonomists to further appraise the vegetative growth and tissue development which is requisite especially for fruit to enhance the yield of herbal drugs and their formulation. Further molecular studies, compounds isolation and characterization are required to deepen the knowledge of these herbal drugs.


Assuntos
Plantas Medicinais , Humanos , Plantas Medicinais/química , Folhas de Planta/anatomia & histologia , Microscopia Eletrônica de Varredura , Tricomas/ultraestrutura , Controle de Qualidade
2.
J Complement Integr Med ; 20(2): 372-378, 2023 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-36662647

RESUMO

OBJECTIVES: Euphorbia prostrata is traditionally used alongside antidiabetic agents to manage diabetes. Bioactive ingredients of medicinal herbs may alter the overall pharmacokinetics of antidiabetic agents. METHODS: We assessed hypoglycemic activities of ethanolic plant extract (EPE) singly and its effects on antidiabetic properties of gliclazide, glibenclemide and metformin in allaxonized rats. Varying concentrations of EPE (250 and 500 mg/kg) with or without metformin (10 mg/kg), glibenclemide (2 mg/kg) and gliclazide (5 mg/kg) were orally administered to evaluate herb-drug interaction. RESULTS: The levels of blood glucose declined significantly after treatment with metformin, glibenclemide and gliclazide singly (p<0.01) or concomitantly with EPE (p<0.001). Concentration dependent mild to moderate reduction (5.2 and 10.0%) was registered in blood glucose for 250 and 500 mg/kg of EPE respectively. The overall reduction in blood glucose due to combined treatment with EPE and standard agents was additive. On the other hand, synergistic herb-drug interaction was registered for insulin levels in rats that received glibenclamide and gliclazide alongside EPE. Extract with metformin had antagonistic insulin outcome. Regarding the duration of hypoglycemic activities, periodical changes were similar in case of glibenclamide and gliclazide separately or in combination with EPE. However, in case of metformin with extract, the blood glucose continued to decline for 14 h and retained at 15.0% below the baseline values even after 24 h of treatment. CONCLUSIONS: In conclusion, the extract itself had weak hypoglycemic effects but prolonged the therapeutic duration of metformin to more than 24 h when administered combinedly.


Assuntos
Diabetes Mellitus Experimental , Euphorbia , Gliclazida , Metformina , Ratos , Animais , Glibureto/uso terapêutico , Glicemia , Gliclazida/farmacologia , Gliclazida/uso terapêutico , Aloxano , Diabetes Mellitus Experimental/tratamento farmacológico , Hipoglicemiantes/farmacologia , Hipoglicemiantes/uso terapêutico , Metformina/farmacologia , Metformina/uso terapêutico , Insulina , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico
3.
J Ethnobiol Ethnomed ; 14(1): 30, 2018 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-29695281

RESUMO

BACKGROUND: The residents of remote areas mostly depend on folk knowledge of medicinal plants to cure different ailments. The present study was carried out to document and analyze traditional use regarding the medicinal plants among communities residing in Koh-e-Safaid Range northern Pakistani-Afghan border. METHODS: A purposive sampling method was used for the selection of informants, and information regarding the ethnomedicinal use of plants was collected through semi-structured interviews. The collected data was analyzed through quantitative indices viz. relative frequency citation, use value, and family use value. The conservation status of medicinal plants was enumerated with the help of International Union for Conservation of Nature Red List Categories and Criteria (2001). Plant samples were deposited at the Herbarium of Botany Department, University of Peshawar for future reference. RESULTS: One hundred eight informants including 72 male and 36 female were interviewed. The informants provided information about 92 plants species used in the treatment of 53 ailments. The informant reported maximum number of species used for the treatment of diabetes (16 species), followed by carminatives (12 species), laxatives (11 species), antiseptics (11 species), for cough (10 species), to treat hepatitis (9 species), for curing diarrhea (7 species), and to cure ulcers (7 species), etc. Decoction (37 species, i.e., 40%) was the common method of recipe preparation. Most familiar medicinal plants were Withania coagulans, Caralluma tuberculata, and Artemisia absinthium with relative frequency (0.96), (0.90), and (0.86), respectively. The relative importance of Withania coagulans was highest (1.63) followed by Artemisia absinthium (1.34), Caralluma tuberculata (1.20), Cassia fistula (1.10), Thymus linearis (1.06), etc. This study allows identification of novel uses of plants. Abies pindrow, Artemisia scoparia, Nannorrhops ritchiana, Salvia reflexa, and Vincetoxicum cardiostephanum have not been reported previously for their medicinal importance. The study also highlights many medicinal plants used to treat chronic metabolic conditions in patients with diabetes. CONCLUSIONS: The folk knowledge of medicinal plants species of Koh-e-Safaid Range was unexplored. We, for the first time, conducted this quantitative study in the area to document medicinal plants uses, to preserve traditional knowledge, and also to motivate the local residents against the vanishing wealth of traditional knowledge of medicinal flora. The vast use of medicinal plants reported shows the significance of traditional herbal preparations among tribal people of the area for their health care. Knowledge about the medicinal use of plants is rapidly disappearing in the area as a new generation is unwilling to take interest in medicinal plant use, and the knowledgeable persons keep their knowledge a secret. Thus, the indigenous use of plants needs conservational strategies and further investigation for better utilization of natural resources.


Assuntos
Medicina Tradicional , Plantas Medicinais , Adulto , Afeganistão , Idoso , Idoso de 80 Anos ou mais , Conservação dos Recursos Naturais , Feminino , Humanos , Conhecimento , Masculino , Pessoa de Meia-Idade , Paquistão , Fitoterapia
4.
Pak J Pharm Sci ; 30(2): 459-466, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28649070

RESUMO

Livestock rearing is a common practice in Tehsil Takht-e-Nasrati by the locals to earn their livelihood. Low productivity due to poor health of livestock is major consideration in the study area. In order to know whether this low productivity and poor health might be due to poor quality of forage, ten plant species were analyzed for micro mineral quantification at three phenological stages. Mineral compositions of plants are used to diagnose probable deficiencies in food and forage and nutritional status of plants. Comparison among at vegetative stage of test species and micro nutrients showed that the amount of manganese was found high (64.4mg & &Kg-1) in Chrozophora obliqua. Comparison among at reproductive and post reproductive stages of test species and micro nutrients pointed out that the amount of nickel was found high (67.24mg & Kg-1) and (80.4mg & Kg-1) respectively in Vitex trifolia. It is concluded that micro-minerals concentrations available in these forage plants to the grazing livestock were very low, hence this may be, one of the causes responsible for the pitiable health and productivity of the grazing animals in investigated area.


Assuntos
Minerais/análise , Desenvolvimento Vegetal , Plantas/química , Folhas de Planta/química
5.
Cardiol Res Pract ; 2016: 8798261, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26885436

RESUMO

Objective. Out of hospital cardiac arrest (OHCA) patients are a critically ill patient population with high mortality. Combining mild therapeutic hypothermia (MTH) with early coronary intervention may improve outcomes in this population. The aim of this study was to evaluate predictors of mortality in OHCA patients undergoing MTH with and without cardiac catheterization. Design. A retrospective cohort of OHCA patients who underwent MTH with catheterization (MTH + C) and without catheterization (MTH + NC) between 2006 and 2011 was analyzed at a single tertiary care centre. Predictors of in-hospital mortality and neurologic outcome were determined. Results. The study population included 176 patients who underwent MTH for OHCA. A total of 66 patients underwent cardiac catheterization (MTH + C) and 110 patients did not undergo cardiac catheterization (MTH + NC). Immediate bystander CPR occurred in approximately half of the total population. In the MTH + C and MTH + NC groups, the in-hospital mortality was 48% and 78%, respectively. The only independent predictor of in-hospital mortality for patients with MTH + C, after multivariate analysis, was baseline renal insufficiency (OR = 8.2, 95% CI 1.8-47.1, and p = 0.009). Conclusion. Despite early cardiac catheterization, renal insufficiency and the absence of immediate CPR are potent predictors of death and poor neurologic outcome in patients with OHCA.

6.
Echocardiography ; 33(1): 14-22, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26114805

RESUMO

BACKGROUND: Early identification of high-grade ischemia based on echocardiographic diastolic abnormalities may be clinically useful in the acute coronary syndrome (ACS) setting. This could provide the clinician with an awareness of the burden of coronary artery disease (CAD) before angiography is performed to allow for early intervention of suspected ischemic lesions. The objective of the study was to assess whether 2D transthoracic echocardiography (TTE)-derived tissue Doppler imaging parameters can predict the severity of CAD in comparison with the cardiac catheterization-derived SYNTAX score. METHODS: A retrospective study of 74 stable angina or patients with ACS was performed in 2012 at a single tertiary care center. In all study subjects, TTE and angiography were performed within 6 months of each other without revascularization in the interim. RESULTS: The study population included a total of 74 patients (mean age 67 ± 12 years) with 77% presenting with an ACS. The median SYNTAX score was 24.0 (6.0-35.0). The E-wave velocity was higher, and deceleration time (DT) was lower in the high SYNTAX group in comparison with the low/intermediate SYNTAX group (P = 0.045 and P = 0.001, respectively). Septal mitral annular S' was lower in the high SYNTAX group (P = 0.02). After multivariate analysis, E/A ratio (OR 0.03, 95% 0.00-0.36, P = 0.0067), DT (OR 0.93, 95% CI 0.89-0.97, P = 0.0001) and septal annular S'-wave velocity (OR 0.34, 95% CI 0.16-0.71, P = 0.0038) remained strong predictors of a high SYNTAX score. CONCLUSION: Early identification of systolic and diastolic dysfunction based on echocardiographic parameters may be of important clinical significance for predicting CAD burden prior to invasive angiography.


Assuntos
Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/fisiopatologia , Diástole/fisiologia , Sístole/fisiologia , Idoso , Velocidade do Fluxo Sanguíneo , Cateterismo Cardíaco , Efeitos Psicossociais da Doença , Ecocardiografia Doppler , Feminino , Humanos , Masculino , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Estudos Retrospectivos
7.
Pak J Pharm Sci ; 29(6): 2099-2102, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28375130

RESUMO

Ruellia tuberosa Linn. of family Acanthaceae was studied to investigate the microscopical, vein islet and vein termination numbers, palisade ratio, stomatal index and different chemical parameters. The antibacterial, antifungal and phytotoxic activities of the crude extract of the plant were also determined. Five bacterial species were used, of which, Salmonella typhi, Escherichia coli, and Pseudomonas aeruginosa were the most susceptible bacterial species to crude extract with MICs 10, 4.0 and 14mg/ml, respectively. Among the tested fungal species Fusarium solani and Aspergillus niger were more susceptible to crude extracts with MICs 1.34, 2.78 and 1.45µg/ml, respectively. At the concentration of 1000µg/ml the methnolic extract exhibited significant activity, at 100µg/ml the activity was good and at 10µg/ml the activity was moderate against Lemna minor. The above selected plants were shown by in vitro assays to be a potential source for natural antifungal, antibacterial and phytotoxic agents.


Assuntos
Acanthaceae/química , Antibacterianos/farmacologia , Antifúngicos/farmacologia , Fungos/efeitos dos fármacos , Farmacognosia , Extratos Vegetais/farmacologia , Antibacterianos/isolamento & purificação , Antibacterianos/toxicidade , Antifúngicos/isolamento & purificação , Antifúngicos/toxicidade , Bactérias/efeitos dos fármacos , Bactérias/crescimento & desenvolvimento , Fungos/crescimento & desenvolvimento , Testes de Sensibilidade Microbiana , Fitoterapia , Extratos Vegetais/isolamento & purificação , Extratos Vegetais/toxicidade , Brotos de Planta/química , Plantas Medicinais
8.
Pak J Pharm Sci ; 28(4): 1203-15, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26142511

RESUMO

The proximate analysis revealed the presence of ash, moisture, protein, fiber, fats and carbohydrate. ANOVA showed that ash and moisture contents was non significant between the plant parts and phenological stages. Crude protein was non significant between the plant parts and phenological stages except for Datura innoxia parts but not for its phenolgical stages, while crude fats were non significant between the plant parts and phenological stages except for Solanum nigrum and Solanum surattense parts but not for their phenolgical stages. Crude fiber was non significant between the plant parts and phenological stages except for Datura innoxia parts but not for its phenolgical stages. And carbohydrates was non significant between the plant parts and phenological stages except for the phenolgical stages of Solanum surattense and Withania coagulans. The mineral analysis showed the presence of Cr, Zn, Cu, Mn, Fe, Ca, K, Mg and Na in the roots, stems, leaves, flowers and fruits of the plants in three different phenological stages. Only the micro-minerals were present in traces while the macro-minerals were present high quantities as compared to the micro-minerals.


Assuntos
Minerais/análise , Plantas Medicinais/química , Solanaceae/química , Carboidratos/análise , Fibras na Dieta/análise , Proteínas de Plantas/análise
9.
BMC Res Notes ; 8: 59, 2015 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-25889319

RESUMO

BACKGROUND: Left ventricular thrombus (LVT) formation occasionally complicates patient recovery post myocardial infarction, conveying a significant risk of systemic embolism. Accordingly, thrombus detection and subsequent anticoagulation is imperative in order to minimize patient morbidity and mortality. Transthoracic echocardiography (TTE) is the imaging modality most widely used to screen for thrombus formation despite its suboptimal sensitivity and specificity. CASE PRESENTATION: This report describes the discordant imaging findings of a LVT in a 56 year old Caucasian male with an anterior ST elevation myocardial infarction. Left ventriculography revealed a filling defect, suggestive of a potential left ventricular (LV) thrombus, which could not be confirmed by TTE. Cardiac magnetic resonance imaging (MRI) demonstrated evidence of a full thickness scar involving the mid to distal anterior wall and apical regions, with confirmation of a small LV apical thrombus. CONCLUSIONS: This case illustrates the limitations of TTE when used as a tool to screen for thrombus formation. It highlights the importance of multimodality cardiac imaging for the detection of post myocardial infarction (MI) complications, in the context of a high clinical suspicion.


Assuntos
Ventrículos do Coração/diagnóstico por imagem , Imagem Multimodal , Trombose/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Ventriculografia com Radionuclídeos , Ultrassonografia
10.
Can J Cardiol ; 31(2): 228.e1-2, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25661563

RESUMO

Takotsubo cardiomyopathy (TTC) mimics acute myocardial infarction on electrocardiography and is characterized by transient left ventricular dysfunction and positive cardiac biomarkers in the absence of significant coronary disease. In the majority of cases, TTC affects postmenopausal women and is commonly incited by a recent negative emotional stressor, although the pathophysiological mechanism of this process is incompletely understood. In contrast, we describe a case in which TTC developed after a recent positive emotional event in a postmenopausal woman.


Assuntos
Felicidade , Estresse Psicológico/complicações , Cardiomiopatia de Takotsubo/etiologia , Doença Aguda , Idoso de 80 Anos ou mais , Angiografia Coronária , Diagnóstico Diferencial , Eletrocardiografia , Feminino , Humanos , Estresse Psicológico/diagnóstico , Estresse Psicológico/psicologia , Cardiomiopatia de Takotsubo/diagnóstico , Cardiomiopatia de Takotsubo/psicologia
11.
Resuscitation ; 85(12): 1713-9, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25449345

RESUMO

BACKGROUND: Among patients with reversible conditions who sustain cardiac arrest, extracorporeal membrane oxygenation (ECMO) may support end organ perfusion while bridging to definitive therapy. METHODS: A single center retrospective review (February 2008­September 2013) of adults receiving ECMO for cardiac arrest ≥15 min duration refractory to conventional management (E-CPR) or profound cardiogenic shock following IHCA (E-CS) was conducted. The primary outcome was 30-day survival with good neurologic function defined as a cerebral performance category (CPC) of 1­2. Secondary outcomes included intensive care unit (ICU) and hospital length of say, duration of mechanical ventilation, and univariate predictors of 30-day survival with favorable neurologic function. RESULTS: Thirty-two patients (55 ± 11 years, 66% male) were included of which 22 (69%) received E-CPR and 10 (31%) received E-CS following return of spontaneous circulation (ROSC). Cardiac arrest duration was 48.8 ± 21 min for those receiving E-CPR and 25 ± 23 min for the E-CS group. Patients received ECMO support for 70.7 ± 47.6 h. Death on ECMO support occurred in 7 (21.9%) patients, while 7 (21.9%) were bridged to another form of mechanical circulatory support, and 18 (56.3%) were successfully decannulated. ICU length of stay was 7.5 [3.3­14] days and ICU survival occurred in 16 (50%) of patients. 30-Day survival was 5 (50%) in the E-CS group, 10 (45.4%) in the E-CPR group, and 15 (47%) overall. All survivors had CPC 1­2 neurologic status. CONCLUSION: In this single center experience, the use of resuscitative ECMO was associated with neurologically favorable 30-day survival in 47% of patients with prolonged IHCA (H2012:172).


Assuntos
Reanimação Cardiopulmonar/métodos , Oxigenação por Membrana Extracorpórea/métodos , Parada Cardíaca/terapia , Reanimação Cardiopulmonar/mortalidade , Feminino , Seguimentos , Parada Cardíaca/mortalidade , Humanos , Masculino , Manitoba/epidemiologia , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida/tendências , Resultado do Tratamento
12.
Pak J Pharm Sci ; 27(4): 801-5, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25015443

RESUMO

The methanolic and n-hexane extracts of studied plants showed significant toxicity to brine shrimps. The methanolic extract of Fagonia cretica had highest LD50 (117.72) value, while Peganum harmala showed low LD50 value (41.70) compared to n-hexane extract. The methanolic and n-hexane extracts of Tribulus terrestris showed similar LD50 values. The methanolic extract of Chrozophora tinctoria showed low LD50 value than the n-hexane extract. The methanolic extract of Ricinus communis showed highest LD50 value while the n-hexane extract showed lowest LD50 value. The LD50 value less than 100 was obtained for n-hexane extracts of Fagonia cretica, Peganum harmala and Ricinus communis. The n-hexane extracts of these plants also showed the highest toxicity as compare to methanolic extracts. The chemical constituents detected in the present investigation might be responsible for cytotoxic activity.


Assuntos
Euphorbiaceae , Extratos Vegetais/toxicidade , Zygophyllaceae , Animais , Artemia/efeitos dos fármacos , Relação Dose-Resposta a Droga , Euphorbiaceae/química , Dose Letal Mediana , Zygophyllaceae/química
13.
Pak J Pharm Sci ; 27(4): 953-61, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25015466

RESUMO

The proximate analysis of ten plant species from Tehsil takht-e-Nasrati, district Karak was conducted at three phenological stages using standard techniques. The species showed variable results. In the test species, the moisture content varied from 2.11-14.12 %, 1.85-11.51 and 1.12-11.51%; the ash contents varied from 3.08-17.16%, 5.09-18.12% and 6.13-19.09%; the fibre contents varied from 2.14-11.09%, 2.43-12.31% and 2.78-13.01%; the carbohydrate contents varied from 54-85.1%, (50-84.1) and 47.1-81.1%; the fat contents varied from 1.06-5.46%, 1.09-5.98% and 1.56- 6.57 %; the protein contents varied from 2.11-12.41%, 3.14-15.87% and 4.12-18.54%; the energy value varied from 305.12-394.23 KCal/100g, 314.21-423.13 KCal /100g and 321.23-434.26 KCal /100g at vegetative stage, reproductive stage and post reproductive stage respectively. Proximate analysis of such plant species can help us to determine the health benefits achieved from their use in society. It is concluded that the poor livestock productivity in research area is partially due to insufficient amount of available poor quality forage that requires attention of the range mangers to improve the habitat and livestock breeds.


Assuntos
Avaliação Nutricional , Plantas/química , Animais , Carboidratos/análise , Gorduras/análise , Gado , Valor Nutritivo , Paquistão , Proteínas de Plantas/análise , Água/análise
14.
JACC Cardiovasc Interv ; 7(5): 550-7, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24746655

RESUMO

OBJECTIVES: This study reports the results a novel radiation reduction protocol (RRP) system for coronary angiography and interventional procedures and the determinants of radiation dose. BACKGROUND: The cardiac catheterization laboratory is an important source of radiation and should be kept in good working order with dose-reduction and monitoring capabilities. METHODS: All diagnostic coronary angiograms and percutaneous coronary interventions from a single catheterization laboratory were analyzed 2 months before and after RRP implementation. The primary outcome was the relative dose reduction at the interventional reference point. Separate analyses were done for conventional 15 frames/s (FPS) and at reduced 7.5 FPS post-RRP groups. RESULTS: A total of 605 patients underwent coronary angiography (309 before RRP and 296 after RRP), with 129 (42%) and 122 (41%) undergoing percutaneous coronary interventions before and after RRP, respectively. With RRP, a 48% dose reduction (1.07 ± 0.05 Gy vs. 0.56 ± 0.03 Gy, p < 0.0001) was obtained, 35% with 15 FPS RRP (0.70 ± 0.05 Gy, p < 0.0001) and 62% with 7.5 FPS RRP (0.41 ± 0.03 Gy, p < 0.001). Similar dose reductions for diagnostic angiograms and percutaneous coronary interventions were noted. There was no change in the number of stents placed or vessels intervened on. Increased dose was associated with male sex, radial approach, increasing body mass index, cine runs, and frame rates. Using a multivariable model, a 48% relative risk with RRP (p < 0.001), 44% with 15 FPS RRP and 68% with 7.5 FPS RRP was obtained. CONCLUSIONS: We demonstrate a highly significant 48.5% adjusted radiation dose reduction using a novel algorithm, which needs strong consideration among interventional cardiology practice.


Assuntos
Cateterismo Cardíaco , Angiografia Coronária , Laboratórios , Intervenção Coronária Percutânea , Doses de Radiação , Lesões por Radiação/prevenção & controle , Proteção Radiológica/métodos , Radiografia Intervencionista , Idoso , Algoritmos , Índice de Massa Corporal , Cateterismo Cardíaco/efeitos adversos , Cineangiografia , Angiografia Coronária/efeitos adversos , Procedimentos Clínicos , Feminino , Fluoroscopia , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Intervenção Coronária Percutânea/efeitos adversos , Avaliação de Programas e Projetos de Saúde , Artéria Radial/diagnóstico por imagem , Monitoramento de Radiação , Radiografia Intervencionista/efeitos adversos , Estudos Retrospectivos , Fatores Sexuais
15.
Heart Int ; 9(1): 26-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-27004094

RESUMO

Guide catheter induced dissection of coronary arteries is an uncommon, but serious complication of coronary angioplasty. Treatment can include emergent coronary artery bypass grafting to the affected vessel or percutaneous intervention including wiring the true lumen and exclusion stenting of the dissection flap to prevent further propagation. Detailed descriptions have been published of techniques of intentional passage of guide wires into the false lumen and reentry into the true lumen with chronic total occlusions. We present an unusual case of what appeared to be successful intentional false lumen stenting with reentry into the true lumen of an iatrogenic dissection of the right coronary artery with restoration of TIMI III coronary flow which, one year later, was complicated by recanalization of the true lumen and occlusion of the stented false lumen causing symptomatic angina.

16.
BMC Res Notes ; 6: 538, 2013 Dec 17.
Artigo em Inglês | MEDLINE | ID: mdl-24344829

RESUMO

BACKGROUND: Eosinophilic myocarditis is a rare and often under-diagnosed subtype of myocarditis with only around 30 cases published in the medical literature. In this article we present two patients with eosinophilic myocarditis with the aim to demonstrate the often elusive nature of the disease and present the current scientific literature on this topic. CASE PRESENTATION: A 76 years old Caucasian gentleman and a 36 years old Aboriginal gentleman both presenting with heart failure symptoms were eventually diagnosed with eosinophilic myocarditis after extensive evaluation. Their presentation, assessment, and medical management is explored in this article. CONCLUSIONS: Eosinophilic myocarditis remains a rare and likely under-diagnosed subtype of myocarditis. The key features of this disease include myocardial injury in the setting of non-contributory coronary artery disease. Endomyocardial biopsy remains the definitive gold standard for diagnosis of noninfectious eosinophilic myocarditis. Non-invasive cardiac imaging in the setting of peripheral eosinophilia can be strongly suggestive of eosinophilic myocarditis with potential for earlier diagnosis. Failure to diagnose eosinophilic myocarditis and the delay of therapy may lead to irreversible myocardial injury. Therapies for this disease have yet to be validated in large prospective studies.


Assuntos
Eosinofilia/diagnóstico , Miocardite/diagnóstico , Miocárdio/patologia , Adulto , Idoso , Biópsia , Diagnóstico Precoce , Eosinofilia/complicações , Eosinofilia/patologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Miocardite/complicações , Miocardite/patologia
17.
Int J Cardiol ; 166(2): 465-8, 2013 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-22126854

RESUMO

INTRODUCTION: Electrocardiographic (ECG) predictors of significant angiographic left main coronary artery stenosis (LMCS>50%) have been described in acute myocardial infarction using ST-segment elevation in lead aVR (aVR-STE). However, there is a paucity of data on its association with LMCS>50% in the setting of cardiogemic shock (CGS). METHODS: We investigated 210 consecutive, unselected, patients from Sept. 2002-2006 with CGS due to acute myocardial infarction undergoing cardiac catheterization. Of those, 191 patients with interpretable ECG tracings for aVR-STE analysis formed our study sample. aVR-STE was defined as ST-segment elevation≥1mm in aVR while LMCS>50% on coronary angiogram was defined as any left main lesion that demonstrated >50% lumen narrowing or equivalent by direct visualization or quantitative coronary angiography analysis. RESULTS: There was 59% survival to discharge of this predominantly male cohort (median age 68±12years; 31% females). Fifty three (28%) cases had aVR-STE while 27 (14%) had LMCS>50%. Of those, 16 patients who had aVR-STE also had LMCS>50% (sensitivity 59%, specificity 77%, positive predictive value 30%, negative predictive value 92% for predicting LMCS>50%). Multivariate analysis revealed that aVR-STE was the only significant predictor of LMCS>50% was (p=0.014; Odds Ratio=3.06; 95% Confidence Interval 1.26-7.47). CONCLUSION: In CGS due to acute myocardial infarction, aVR-STE>1mm proves to be an important predictor of LMCS>50%. Such data could be helpful in further risk stratification for optimal management during CGS.


Assuntos
Estenose Coronária/diagnóstico , Estenose Coronária/epidemiologia , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/epidemiologia , Choque Cardiogênico/diagnóstico , Choque Cardiogênico/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Estenose Coronária/fisiopatologia , Vasos Coronários/patologia , Feminino , Humanos , Masculino , Manitoba/epidemiologia , Pessoa de Meia-Idade , Infarto do Miocárdio/fisiopatologia , Valor Preditivo dos Testes , Sistema de Registros , Estudos Retrospectivos , Choque Cardiogênico/fisiopatologia
18.
Catheter Cardiovasc Interv ; 82(3): 361-9, 2013 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-23197480

RESUMO

BACKGROUND: Although high-risk left main PCI populations have been previously described, there is little data describing outcomes and the role of the logistic EuroSCORE in surgical turndown cohorts or patients in extremis due to acute infarction or cardiogenic shock from left main ischemia. METHODS: Consecutive patients with unprotected LM PCI who were surgical turndowns or in extremis were included in this retrospective cohort from 2004 to 2009 at two tertiary centers. Predictors of in-hospital mortality were identified utilizing routine and stepwise logistic regression. RESULTS: There were a total of 56 patients with mean age of 69 (±13). There were 23 (41%) patients with cardiogenic shock. The mean logistic EuroSCORE was 23.5% ± 21%. In-hospital death occurred in 12 (21%) patients, largely restricted to the shock subgroup (11/12). Univariate predictors of mortality included peak CK levels (P = 0.01), transfusion (P = 0.01), cardiogenic shock (P < 0.002), male gender (P = 0.027), and logistic EuroSCORE (P = 0.01). Stepwise logistic regression yielded logistic EuroSCORE (P = 0.04, OR: 1.25 (95% CI: 1.01-1.56) for every 5% increase) and peak CK level (P = 0.001, OR: 1.23 (95% CI: 1.09-1.40) for every 500 unit increase) as independent predictors of in-hospital mortality. The AUC ROC for logistic EuroSCORE was 0.73; and for logistic EuroSCORE plus peak CK level was 0.89. CONCLUSION: PCI appears to be a reasonable option in the high risk "no option" LM population, with the logistic EuroSCORE and peak CK levels being independent predictors of in-hospital mortality. Specifically, the logistic EuroSCORE and peak CK level combined discriminate in-hospital mortality with a high degree of certainty.


Assuntos
Doença da Artéria Coronariana/terapia , Técnicas de Apoio para a Decisão , Mortalidade Hospitalar , Intervenção Coronária Percutânea/mortalidade , Complicações Pós-Operatórias/mortalidade , Idoso , Idoso de 80 Anos ou mais , Área Sob a Curva , Biomarcadores/sangue , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/mortalidade , Creatina Quinase/sangue , Feminino , Humanos , Modelos Logísticos , Masculino , Manitoba/epidemiologia , Pessoa de Meia-Idade , Análise Multivariada , Infarto do Miocárdio/mortalidade , Infarto do Miocárdio/terapia , Seleção de Pacientes , Intervenção Coronária Percutânea/efeitos adversos , Curva ROC , Sistema de Registros , Estudos Retrospectivos , Fatores de Risco , Choque Cardiogênico/mortalidade , Choque Cardiogênico/terapia , Centros de Atenção Terciária , Fatores de Tempo , Resultado do Tratamento
19.
BMC Pregnancy Childbirth ; 12: 122, 2012 Nov 02.
Artigo em Inglês | MEDLINE | ID: mdl-23121892

RESUMO

BACKGROUND: Spontaneous coronary and vertebral artery dissections are rare events occurring most commonly in otherwise healthy women during pregnancy or the post-partum period. CASE PRESENTATION: This report describes a 35-year-old female who presented with an acute inferior ST elevation myocardial infarction 7 months post-partum secondary to spontaneous dissection of the left obtuse marginal coronary artery. Despite appropriate medical therapy with dual anti-platelet therapy, the patient presented four weeks later with a spontaneous dissection of the right vertebral artery. CONCLUSION: We review the presentation, diagnosis, and management of spontaneous dissections of the vasculature in the peri-partum period.


Assuntos
Dissecção Aórtica , Aneurisma Coronário , Transtornos Puerperais , Dissecação da Artéria Vertebral , Adulto , Dissecção Aórtica/complicações , Dissecção Aórtica/diagnóstico , Dissecção Aórtica/terapia , Aneurisma Coronário/complicações , Aneurisma Coronário/diagnóstico , Aneurisma Coronário/terapia , Feminino , Humanos , Infarto do Miocárdio/etiologia , Gravidez , Transtornos Puerperais/diagnóstico , Transtornos Puerperais/etiologia , Transtornos Puerperais/terapia , Dissecação da Artéria Vertebral/complicações , Dissecação da Artéria Vertebral/diagnóstico , Dissecação da Artéria Vertebral/terapia
20.
BMC Res Notes ; 5: 583, 2012 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-23098382

RESUMO

BACKGROUND: Ventricular septal rupture (VSR), a mechanical complication following an acute myocardial infarction (MI), is thought to result from coagulation necrosis due to lack of collateral reperfusion. Although the gold standard test to confirm left-to-right shunting between ventricular cavities remains invasive ventriculography, two-dimensional transthoracic echocardiography (TTE) with color flow Doppler and cardiac MRI (CMR) are reliable tests for the non-invasive diagnosis of VSR. CASE PRESENTATION: A 62-year-old Caucasian female presented with a late case of a VSR post inferior MI diagnosed by multimodality cardiac imaging including TTE, CMR and ventriculography. CONCLUSION: We review the presentation, diagnosis and management of VSR post MI.


Assuntos
Ruptura do Septo Ventricular/diagnóstico por imagem , Cateterismo Cardíaco , Ecocardiografia Doppler , Feminino , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Ruptura do Septo Ventricular/diagnóstico
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