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1.
Small Methods ; : e2400183, 2024 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-38647122

RESUMEN

Improving the wide-temperature operation of rechargeable batteries is crucial for boosting the adoption of electric vehicles and further advancing their application scope in harsh environments like deep ocean and space probes. Herein, recent advances in electrolyte solvation chemistry are critically summarized, aiming to address the long-standing challenge of notable energy diminution at sub-zero temperatures and rapid capacity degradation at elevated temperatures (>45°C). This review provides an in-depth analysis of the fundamental mechanisms governing the Li-ion transport process, illustrating how these insights have been effectively harnessed to synergize with high-capacity, high-rate electrodes. Another critical part highlights the interplay between solvation chemistry and interfacial reactions, as well as the stability of the resultant interphases, particularly in batteries employing ultrahigh-nickel layered oxides as cathodes and high-capacity Li/Si materials as anodes. The detailed examination reveals how these factors are pivotal in mitigating the rapid capacity fade, thereby ensuring a long cycle life, superior rate capability, and consistent high-/low-temperature performance. In the latter part, a comprehensive summary of in situ/operational analysis is presented. This holistic approach, encompassing innovative electrolyte design, interphase regulation, and advanced characterization, offers a comprehensive roadmap for advancing battery technology in extreme environmental conditions.

2.
Sci Rep ; 14(1): 6145, 2024 03 14.
Artículo en Inglés | MEDLINE | ID: mdl-38480756

RESUMEN

Peripheral artery disease (PAD) shares common clinical risk factors, for example, endothelial dysfunction, with preserved ejection fraction (LVEF) heart failure (HFpEF). Whether PAD is associated with preclinical systolic dysfunction and higher HF risk among individuals presenting preserved LVEF remains uncertain. We retrospectively included outpatients with at least one known or established cardiovascular (CV) risk factor with LVEF ≥ 50%. Patients were categorized into high risk and low risk of developing PAD (PAD vs Non-PAD) by ankle-brachial index (ABI) (≤ 0.90 or > 1.4) and further stratified based on their history of HFpEF (HFpEF vs. Non-HFpEF), resulting in the formation of four distinct strata. Preclinical systolic dysfunction was defined using dedicated speckle-tracking algorithm. A total of 2130 consecutive patients were enrolled in the study, with a median follow-up of 4.4 years. The analysis revealed a higher prevalence of high risk of developing PAD in patients with HFpEF compared to those without HFpEF (25.1% vs. 9.4%). Both high risk of developing PAD and HFpEF were independently associated with preclinical systolic dysfunction (global longitudinal strain, GLS ≥ - 18%) (odds ratio, OR: 1.38; 95% confidence interval, CI: 1.03-1.86). In comparison to patients at low risk of developing PAD without HFpEF (Non-PAD/Non-HFpEF group), those categorized as having a high risk of developing PAD with HFpEF (PAD/HFpEF group) exhibited the most impaired GLS and a heightened susceptibility to heart failure hospitalization (hazard ratio, HR: 6.51; 95% CI: 4.43-9.55), a twofold increased risk of all-cause mortality (HR: 2.01; 95% CI: 1.17-3.38), cardiovascular mortality (HR: 2.44; 95% CI: 1.08-5.51), and non-cardiovascular mortality (HR: 1.78; 95% CI: 0.82-3.84). A high risk of developing PAD was strongly linked to impaired preclinical systolic function and an increased likelihood for subsequent hospitalization for HF, all-cause mortality, CV mortality and non-CV mortality. There is a clear need for preventive strategies aimed at reducing hospitalizations for HF and mortality in this high-risk population.


Asunto(s)
Insuficiencia Cardíaca , Enfermedad Arterial Periférica , Disfunción Ventricular Izquierda , Humanos , Volumen Sistólico , Función Ventricular Izquierda , Estudios Retrospectivos , Índice Tobillo Braquial , Factores de Riesgo , Pronóstico
3.
J Pers Med ; 12(3)2022 Feb 28.
Artículo en Inglés | MEDLINE | ID: mdl-35330369

RESUMEN

It remains unknown as to whether the use of new-generation drug-eluting stent (NG-DES) in patients with ST-elevation myocardial infarction (STEMI) who receive an undefined duration of dual antiplatelet therapy (DAPT) reduces the risk of hospitalization for heart failure (HHF). In this population-based retrospective cohort study, we applied propensity score matching to select 6831 pairs of patients with STEMI who had similar baseline characteristics and received either NG-DES or bare-metal stent (BMS) implantation between 1 January 2007 and 31 December 2016. The risk of stent-associated HHF was evaluated, wherein death was considered a competing risk. Rates of cumulative incidence competing risk for HHF at the 1, 2, 3, 4, and 5 year follow-up were lower in the NG-DES group (3.79%, 5.21%, 6.15%, 7.01%, and 8.29%, respectively) than in the BMS group (4.51%, 6.21%, 7.32%, 8.33%, and 9.83%, respectively). NG-DES implantation was associated with a lower risk of HHF than BMS implantation after 5 years, with an adjusted subdistribution hazard ratio of 0.82 (95% confidence interval 0.72−0.92, p = 0.001). These results accord with those of patients who received DAPT for >6 months. Our findings highlight that NG-DESs may reduce HHF risk in patients with STEMI receiving an undefined duration of DAPT.

4.
J Invasive Cardiol ; 34(2): E80-E86, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35058374

RESUMEN

BACKGROUND AND OBJECTIVES: Long 48 mm drug-eluting stents (DES) used to treat long coronary lesions decreases the number of stents needed and avoids stent overlapping. Disadvantages include difficulty in delivery and size discrepancy between proximal and distal stent landing zones. The present study analyzed the rate of procedural, immediate angiographic, and 1-year clinical outcomes of long diffuse coronary artery lesions treated with 48 mm everolimus-eluting stents (EES) and compared the clinical outcomes with multiple overlapping DES. METHODS: This retrospective analysis included 213 patients with 228 lesions treated with at least one 48 mm EES at 2 hospitals in Taiwan. RESULTS: About 40.4% of the lesions had moderate-severe calcification and 20.2% had acute angulation. The mean lesion length was 49.2 ± 18.1 mm. In 161 lesions requiring a single 48 mm EES, 67.1% had a discrepancy between proximal and distal reference diameter of ≥0.5 mm and 36% had a discrepancy of ≥1.0 mm. The procedural success rate was 98.6%. Target-vessel failure (TVF) rate at 1 year was 4.2%. Cardiac death occurred in 3 patients. The rates of target-vessel myocardial infarction (TV-MI), target-vessel revascularization (TVR) and definite/ probable stent thrombosis were 1.4%, 3.3%, and 0.9%, respectively. After adjusting patient variables by propensity score matching, no significant difference was found for cardiac death, TVF, TV-MI, and clinically driven TVR. CONCLUSION: Use of 48 mm EES to treat long coronary lesions in clinically and anatomically complex patients is safe and effective. In the propensity score-matched analysis, the 48 mm EES and multiple stents have comparable clinical outcomes.


Asunto(s)
Enfermedad de la Arteria Coronaria , Stents Liberadores de Fármacos , Infarto del Miocardio , Intervención Coronaria Percutánea , Enfermedad de la Arteria Coronaria/diagnóstico , Enfermedad de la Arteria Coronaria/tratamiento farmacológico , Enfermedad de la Arteria Coronaria/cirugía , Vasos Coronarios/diagnóstico por imagen , Vasos Coronarios/cirugía , Muerte , Everolimus/farmacología , Everolimus/uso terapéutico , Humanos , Estimación de Kaplan-Meier , Infarto del Miocardio/etiología , Intervención Coronaria Percutánea/efectos adversos , Diseño de Prótesis , Estudios Retrospectivos , Sirolimus/uso terapéutico , Stents , Resultado del Tratamiento
5.
Atherosclerosis ; 316: 84-89, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33109336

RESUMEN

BACKGROUND AND AIMS: The association between implanted stent types and heart failure in patients with non-ST-elevation myocardial infarction (NSTEMI) remains unknown. The current study aimed to investigate whether the implantation of a newer-generation drug-eluting stent (NG-DES) compared with that of a bare-metal stent (BMS) in patients with NSTEMI who receive an undefined duration of dual antiplatelet therapy (DAPT) reduces the risk of hospitalization for heart failure (HHF). METHODS: In this nationwide, population-based retrospective cohort study, propensity score matching was used on the Taiwan's National Health Insurance Research Database to select 8,644 pairs of patients with NSTEMI and similar baseline characteristics receiving NG-DES or BMS implantation between January 1, 2007 and December 31, 2016. A competing risk model was constructed to evaluate the risk of HHF in the NG-DES and BMS groups. Death was considered a competing risk. RESULTS: Rates of cumulative incidence competing risk for HHF at 1, 2, 3, 4, and 5-year follow-ups were lower in the NG-DES group (4.11%, 5.63%, 6.72%, 7.65%, and 8.89%, respectively) than in the BMS group (5.89%, 7.81%, 9.25%, 10.8%, and 11.9%, respectively). After adjustment for all clinical variables, NG-DES implantation was associated with a lower risk of HHF than BMS implantation after 5 years, with an adjusted subdistribution hazard ratio of 0.71 (95% CI = 0.64-0.79, p < 0.001). These results are in agreement with those of patients who received DAPT for >6 months. CONCLUSIONS: NG-DESs may reduce HHF risk in patients with NSTEMI who receive an undefined duration of DAPT.


Asunto(s)
Stents Liberadores de Fármacos , Insuficiencia Cardíaca , Infarto del Miocardio , Infarto del Miocardio sin Elevación del ST , Intervención Coronaria Percutánea , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/terapia , Humanos , Infarto del Miocardio/diagnóstico , Intervención Coronaria Percutánea/efectos adversos , Estudios Retrospectivos , Stents , Resultado del Tratamiento
6.
Medicine (Baltimore) ; 99(34): e21885, 2020 Aug 21.
Artículo en Inglés | MEDLINE | ID: mdl-32846847

RESUMEN

The use of a drug-eluting stent (DES) in patients with acute myocardial infarction (AMI) treated with percutaneous coronary intervention is conventional. However, the effect of DES on new-onset atrial fibrillation (AF) after AMI still remains unclear.By using data from Taiwan's National Health Insurance Research Database, a total of 17,741 patients with ST-elevation myocardial infarction (STEMI) and 17,631 patients with non-ST-elevation myocardial infarction (NSTEMI) treated with percutaneous coronary intervention were analyzed to investigate the risk of new-onset AF after index admission of AMI.There were 26.5% (N = 4696) of patients with STEMI and 39.5% (N = 6967) of patients with NSTEMI received DES implantation. Upon 1-year follow-up, we observed that DES placement was associated with a reduced 1-year risk of new-onset AF in the patients with NSTEMI (adjusted hazard ratio [aHR] = 0.74, 95% confidence interval [CI] = 0.59-0.93, P = .009) after adjustment for clinical relevant variables. This benefit was consistent with that in the patients with NSTEMI who were ≥75 years old, had a CHA2DS2-VASc score of ≥2, and did not receive intra-aortic balloon pump insertion (aHR = 0.72, 95% CI = 0.53-0.98, P = .039; aHR = 0.73, 95% CI = 0.586-0.92, P = .006; and aHR = 0.71, 95% CI = 0.56-0.90, P = .004; respectively). However, DES placement had a neutral effect on the risk of new-onset AF in the patients with STEMI.Compared with the use of BMS, the use of DES might reduce the risk of new-onset AF in patients with NSTEMI.


Asunto(s)
Stents Liberadores de Fármacos/efectos adversos , Infarto del Miocardio/cirugía , Infarto del Miocardio sin Elevación del ST/cirugía , Intervención Coronaria Percutánea/efectos adversos , Infarto del Miocardio con Elevación del ST/cirugía , Enfermedad Aguda , Adulto , Anciano , Anciano de 80 o más Años , Fibrilación Atrial/epidemiología , Fibrilación Atrial/etiología , Estudios de Casos y Controles , Stents Liberadores de Fármacos/economía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/complicaciones , Infarto del Miocardio sin Elevación del ST/complicaciones , Infarto del Miocardio sin Elevación del ST/fisiopatología , Estudios Retrospectivos , Factores de Riesgo , Infarto del Miocardio con Elevación del ST/complicaciones , Infarto del Miocardio con Elevación del ST/fisiopatología , Taiwán/epidemiología
7.
J Clin Hypertens (Greenwich) ; 20(6): 1027-1035, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29749701

RESUMEN

The authors consecutively assessed various arterial pulse-wave velocity (PWV) indices and ankle-brachial index (ABI) by an automatic device (VP2000, OMRON Health Care Co. Ltd., Kyota, Japan) in outpatients with ≥ 1 cardiovascular risk. PAD was defined as ABI ≤ 0.9. Among 2309 outpatients (mean age 62.4 years), worse renal function was associated with higher brachial-ankle PWV, heart-carotid PWV, heart-femoral PWV (hf-PWV), and lower ABI (all P < .001). Multivariate regression models showed independent associations between lower eGFR, lower ABI (Coef: 0.42 & 0.41 for right and left), higher hf-PWV (Coef: -11.4 [95% CI: -15.4, -7.3]) and greater PAD risk (adjusted OR: 0.83 [95% CI: 0.76, 0.91], all P < .05). eGFR set at 77 mL/min/1.73m2 was observed to be useful clinical cutoff (c-statistics: 0.67) for identifying PAD (P for ΔAUROC: .009; likelihood X2 : 93.82 to 137.43, P < .001) when superimposed on clinical risks. This study suggested early renal insufficiency is tightly linked to region-specific vascular stiffness and PAD.


Asunto(s)
Índice Tobillo Braquial/instrumentación , Enfermedad Arterial Periférica/epidemiología , Análisis de la Onda del Pulso/instrumentación , Insuficiencia Renal/diagnóstico , Anciano , Anciano de 80 o más Años , Femenino , Tasa de Filtración Glomerular , Humanos , Japón , Masculino , Persona de Mediana Edad , Insuficiencia Renal/fisiopatología , Rigidez Vascular
8.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-669299

RESUMEN

The paper introduces the basic concept of metadata and the building process of metadata directory of TCM therapeutic principle and method information based on data meta-model,complementing a part of metadata directory of basic TCM method (therapeutic principle and method) of the Health Information Metadata Catalogue,summarizes problems found in the building process and advising on the further rationalization of the metadata directory.

9.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 35(6): 712-6, 2015 Jun.
Artículo en Chino | MEDLINE | ID: mdl-26242125

RESUMEN

OBJECTIVE: To explore the inflammatory cascade mechanism through Toll like receptor 2 (TLR2) pathway after cerebral ischemia/reperfusion, and to study molecular mechanisms of Guanmaitong (GMT) Tablet for protecting brain damage. METHODS: We used bolt-line method to block/release the middle cerebral artery, causing cerebral ischemia/reperfusion (I/R) injury model. GMT Tablet was given by gastrogavage. Rats were then divided into the high dose GMT group (1200 mg/kg), the middle dose GMT group (600 mg/kg), the low dose GMT group (300 mg/kg), the positive control group (Tanakan, 20 mg/kg). Their right brain tissues were fixed in 10% neutral formalin. TLR2 expressions were detected by immunofluorescence staining. The total protein was extracted from right brain tissues by ultrasonica- tion. Expression levels of extracellular regulated protein kinases (ERK), phospho-extracellular regulated protein kinases (p-ERK), p38-mitogen activated protein kinases (p-ERK), phospho-p38-mitogen activated protein kinases [p-p38-MAPKs(p-p38)] were assessed by Western blot. Abdominal aortic blood was withdrawn. IL-6 and IL-1ß levels were detected by ELISA in brain tissues and serum. RESULTS: Compared with the sham-oepration group, expression levels of TLR2, ERK, p-ERK, p38, p-p38 protein were up-regulated (P < 0.05, P < 0.01), and contents of IL-6 and IL-1ß in brain tissues and serum were increased in the model group (P < 0.01). Expression levels of TLR2, ERK, p-ERK, p38, p-p38 were down-regulated (P < 0.05, P < 0.01), and contents of IL-6 and IL-1ß were reduced in brain tissues and serum in middle and high dose GMT groups (P < 0.05, P < 0.01). CONCLUSIONS: TLR2 pathway was involved in cerebral I/R injury. GMT protected neurons by down-regulating protein expressions of TLR2, ERK, p-ERK, p38, p-p38 and contents of IL-1ß and IL-6.


Asunto(s)
Isquemia Encefálica/metabolismo , Medicamentos Herbarios Chinos/uso terapéutico , Receptor Toll-Like 2/metabolismo , Proteínas Quinasas p38 Activadas por Mitógenos/metabolismo , Animales , Western Blotting , Infarto Cerebral , Regulación hacia Abajo , Interleucina-1beta , Interleucina-6 , Ratas , Ratas Sprague-Dawley , Daño por Reperfusión , Comprimidos , Regulación hacia Arriba
10.
International Eye Science ; (12): 311-313, 2015.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-637161

RESUMEN

AlM:To investigate the factors and solutions of Tibetan Plateau excimer laser in situ keratomileusis ( LASlK ) for myopia overcorrection.METHODS: The relevant information, 32 cases ( 58 eyes) in 126 cases (252 eyes) had obvious overcorrection after LASlK were analyzed.RESULTS: Two months after surgery, 32 cases ( 58 eyes) overcorrection (23. 0%), uncorrected visual acuity of 0. 5 ~0. 8, overcorrection range of +1. 50 ~ +2. 25DS, subjective inserts were ≥ 1. 0; Five case ( 7 eyes ) overcorrection 6mo after surgery (2. 8%), uncorrected visual acuity 0. 8~1. 0-2 , overcorrection range is +0. 75 ~+1. 25DS, subjective inserts were≥1. 0. Corneal thickness of overcorrection was 500~563μm, preoperative refraction was -5. 00 ~ -7. 50D, astigmatism -1. 50 ~ -2. 75DC, preoperative best corrected visual acuity ≥1. 0.CONCLUSlON: Overcorrection and long recovery time after LASlK in Tibet, possibly with local factors altitude, temperature, humidity, surgical parameters and situation.

11.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-237952

RESUMEN

<p><b>OBJECTIVE</b>To explore the inflammatory cascade mechanism through Toll like receptor 2 (TLR2) pathway after cerebral ischemia/reperfusion, and to study molecular mechanisms of Guanmaitong (GMT) Tablet for protecting brain damage.</p><p><b>METHODS</b>We used bolt-line method to block/release the middle cerebral artery, causing cerebral ischemia/reperfusion (I/R) injury model. GMT Tablet was given by gastrogavage. Rats were then divided into the high dose GMT group (1200 mg/kg), the middle dose GMT group (600 mg/kg), the low dose GMT group (300 mg/kg), the positive control group (Tanakan, 20 mg/kg). Their right brain tissues were fixed in 10% neutral formalin. TLR2 expressions were detected by immunofluorescence staining. The total protein was extracted from right brain tissues by ultrasonica- tion. Expression levels of extracellular regulated protein kinases (ERK), phospho-extracellular regulated protein kinases (p-ERK), p38-mitogen activated protein kinases (p-ERK), phospho-p38-mitogen activated protein kinases [p-p38-MAPKs(p-p38)] were assessed by Western blot. Abdominal aortic blood was withdrawn. IL-6 and IL-1β levels were detected by ELISA in brain tissues and serum.</p><p><b>RESULTS</b>Compared with the sham-oepration group, expression levels of TLR2, ERK, p-ERK, p38, p-p38 protein were up-regulated (P < 0.05, P < 0.01), and contents of IL-6 and IL-1β in brain tissues and serum were increased in the model group (P < 0.01). Expression levels of TLR2, ERK, p-ERK, p38, p-p38 were down-regulated (P < 0.05, P < 0.01), and contents of IL-6 and IL-1β were reduced in brain tissues and serum in middle and high dose GMT groups (P < 0.05, P < 0.01).</p><p><b>CONCLUSIONS</b>TLR2 pathway was involved in cerebral I/R injury. GMT protected neurons by down-regulating protein expressions of TLR2, ERK, p-ERK, p38, p-p38 and contents of IL-1β and IL-6.</p>


Asunto(s)
Animales , Ratas , Western Blotting , Isquemia Encefálica , Metabolismo , Infarto Cerebral , Regulación hacia Abajo , Medicamentos Herbarios Chinos , Usos Terapéuticos , Interleucina-1beta , Interleucina-6 , Ratas Sprague-Dawley , Daño por Reperfusión , Comprimidos , Receptor Toll-Like 2 , Metabolismo , Regulación hacia Arriba , Proteínas Quinasas p38 Activadas por Mitógenos , Metabolismo
12.
Chinese Journal of Traumatology ; (6): 342-345, 2012.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-325763

RESUMEN

<p><b>OBJECTIVE</b>To study the patterns and morphologic characteristics of blunt head injury and analyse its formative mechanism in attempt to provide references for medicolegal expertise.</p><p><b>METHODS</b>The statistical analysis was done in terms of gender, age, as well as the nature, pattern, location, and feature of the injuries.</p><p><b>RESULTS</b>Among the 202 cases of head injury-induced death, 124 were male and 78 female with the age ranging from 1-81 years. Death caused by homicide was dominant (106, 52.5%), followed by suicide (49, 24.3%) and accident (44, 21.8%). The majority of suicide-induced death were by falling from height, and traffic crash was responsible for majority of unexpected death cases. The morphology and pathogenesis of the injuries varied according to differences on the mode, magnitude, and orientation of the outside force giving rise to blunt injury as well as the character of vulnerants.</p><p><b>CONCLUSION</b>Studies on the morphology and its formative rationale of blunt head injury will offer easy access to medicolegal expertise on the mode and character of the injury.</p>


Asunto(s)
Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Causas de Muerte , China , Epidemiología , Medicina Legal , Traumatismos Cerrados de la Cabeza , Mortalidad
13.
Chinese Journal of Traumatology ; (6): 334-337, 2012.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-325765

RESUMEN

<p><b>OBJECTIVE</b>By studying the mode and morphologic character of high fall injuries on the scene, and exploring the injury situation of different heights, different fall ways and postures, to provide a reference for the forensic identification of high fall injury.</p><p><b>METHODS</b>All the high fall cases were statistically analysed according to their gender, age, ground-touching posture, fall height, site and type of the injury.</p><p><b>RESULTS</b>Among 134 high fall cases, 98 were male and 36 were female with the age ranging from 2-71 years (37.6+/-16.9 on average), in which, 10-60 years old group consisted of 110 cases (82%). Most cases fell from windows or roofs (73%) and the touching objects were cement ground or shaft bottom of elevators. Among these cases, head injury was generally serious, followed by chest and abdominal injuries. The morphologic changes depend upon the height, nature, as well as the posture at the point while the body touches the ground.</p><p><b>CONCLUSION</b>Morphologic study of high fall injury assists medicolegal physicians to make correct identifications of the cause and nature of high fall injuries.</p>


Asunto(s)
Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Accidentes por Caídas , Mortalidad , Causas de Muerte , China , Epidemiología , Medicina Legal , Postura , Índices de Gravedad del Trauma , Heridas y Lesiones , Diagnóstico , Mortalidad
14.
Acta Anaesthesiol Taiwan ; 48(2): 94-8, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20643369

RESUMEN

Intravenous anesthesia is commonly used during endoscopy. This approach greatly improves patient satisfaction with pain control. The risks of anesthesia are usually focused on the cardiopulmonary effects of anesthetics. The risk of pulmonary aspiration is often overlooked, unless there are other risk factors that may increase the incidence of pulmonary aspiration. Here, we report a patient with unexpected aspiration pneumonia after gastroscopy under intravenous anesthesia. We suggest that pulmonary aspiration should be taken into consideration as a risk associated with anesthesia for gastroscopy.


Asunto(s)
Anestesia Intravenosa/efectos adversos , Gastroscopía , Neumonía por Aspiración/etiología , Anciano , Humanos , Masculino
15.
J Formos Med Assoc ; 106(8): 649-55, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17711798

RESUMEN

BACKGROUND/PURPOSE: Fentanyl is regularly used in clinical anesthesia practice but fentanyl-induced cough (FIC) will sometimes bother anesthesiologists. This study was designed to examine the effect of intravenous (IV) dexamethasone (DEX) on FIC. METHODS: Eighty ASA class I-II patients, aged 18-80 years and weighing 40-90 kg, scheduled for elective surgery were given DEX to reduce FIC. One hundred and eight patients from our previous study database on FIC, after excluding smokers, comprised the reference group. All patients were given fentanyl (100 mug for 40-69 kg and 150 mug for 70-90 kg for clinical convenience) over 2 seconds via the proximal port of a peripheral IV line in the forearm. Patients in the treatment group received DEX (10 mg, IV) 5 minutes prior to fentanyl injection, while those in the reference group received fentanyl injection only without any premedicant. We recorded the number of coughs of each patient for 30 seconds after fentanyl injection. RESULTS: The incidence of cough was 6.3% in the DEX group and 21.3% in the control group, respectively (p = 0.008). However, the severity of cough observed was not significantly different by DEX pretreatment (p > 0.05) or hemodynamic profiles. CONCLUSION: DEX (10 mg, IV) 5 minutes prior to fentanyl injection reduces the incidence of FIC and can be an ideal premedicant for general anesthesia induction.


Asunto(s)
Anestésicos Intravenosos/efectos adversos , Tos/prevención & control , Dexametasona/administración & dosificación , Fentanilo/efectos adversos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Tos/inducido químicamente , Femenino , Humanos , Inyecciones Intravenosas , Masculino , Persona de Mediana Edad
16.
Acta Anaesthesiol Taiwan ; 44(2): 93-9, 2006 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-16845914

RESUMEN

BACKGROUND: Propofol and midazolam are commonly used in the ICU to alleviate physical and psychological disturbances in consequence of anxiety. This study was conducted to assess and compare the impact of postoperative sedation after major surgery with midazolam or propofol on amnesia and anxiety in conscious patients under intensive care. METHODS: One hundred and two adult patients irrespective of sex and age, receiving thoracic, abdominal or other major truncal surgery necessitating close care at the ICU, were randomly allocated into midazolam or propofol group. Prior to surgery, all patients were subjected to evaluation of the levels of anxiety and amnesia, which was repeated on the following morning with the level of anxiety and the level of amnesia assessed just before and 30 min after cessation of midazolam or propofol medication, respectively. RESULTS: There were no significant differences between the two groups regarding gender, age, types of analgesics used, and anxiety. In both groups, the levels of anxiety (P < 0.001) and amnesia (P < 0.001) were improved significantly over the following day. Midazolam had more pronounced effects on amnesia than propofol (P < 0.001). There were no significant differences between the two groups in the pre- or post-drug anxiety (P = 0.189). CONCLUSIONS: Both midazolam and propofol are effective amnesic and anxiolytic drugs. Midazolam tends to have more favorable effects on amnesia. It is speculated that combination of propofol and midazolam may give better results for treating critically ill ICU patients, the confirmation of which necessitates further study.


Asunto(s)
Amnesia/inducido químicamente , Ansiedad/tratamiento farmacológico , Hipnóticos y Sedantes/farmacología , Midazolam/farmacología , Propofol/farmacología , Adulto , Anciano , Femenino , Humanos , Unidades de Cuidados Intensivos , Masculino , Persona de Mediana Edad , Periodo Posoperatorio
17.
Acta Anaesthesiol Taiwan ; 44(2): 109-12, 2006 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-16845916

RESUMEN

Diabetic patients with autonomic dysfunction are potentially poor risks for anesthesia and particular care is needed during and after surgery. We here report a 48-year-old male patient with diabetes mellitus who suffered from intraoperative hypotension and bradycardia which did not respond to ephedrine and atropine treatment and eventuated in cardiac arrest. A heart rate variability study confirmed the diagnosis of autonomic dysfunction after the event. Possible predisposing mechanisms and anesthetic considerations are discussed.


Asunto(s)
Atropina/uso terapéutico , Enfermedades del Sistema Nervioso Autónomo/complicaciones , Bradicardia/tratamiento farmacológico , Efedrina/uso terapéutico , Hipotensión/tratamiento farmacológico , Complicaciones Intraoperatorias/tratamiento farmacológico , Complicaciones de la Diabetes/complicaciones , Paro Cardíaco/etiología , Frecuencia Cardíaca , Humanos , Masculino , Persona de Mediana Edad
18.
World J Gastroenterol ; 11(31): 4776-81, 2005 Aug 21.
Artículo en Inglés | MEDLINE | ID: mdl-16097043

RESUMEN

AIM: To assess the efficacy of metoclopramide (Met) for prevention of prolonged post-operative ileus in advanced gastric cancer patients undergoing D2 gastrectomy and intra-peritoneal chemotherapy (IPC). METHODS: Thirty-two advanced gastric cancer patients undergoing D2 gastrectomy and IPC were allocated to two groups. Sixteen patients received Met immediately after operation (group A), and 16 did not (group B). Another 16 patients who underwent D2 gastrectomy without IPC were enrolled as the control group (group C). All patients had received epidural pain control. The primary endpoints were time to first post-operative flatus and time until oral feeding with a soft diet without discomfort. Secondary endpoints were early complications during hospitalization. RESULTS: Gender, the type of resection, operating time, blood loss, tumor status and amount of narcotics were comparable in the three groups. However, the group C patients were older than those in groups A and B (67.5+/-17.7 vs 56.8+/-13.2, 57.5+/-11.7 years, P = 0.048). First bowel flatus occurred after 4.35+/-0.93 d in group A, 4.94+/-1.37 d in group B, and 4.71+/-1.22 d in group C (P>0.05). Oral feeding of a soft diet was tolerated 7.21+/-1.92 d after operation in group A, 10.15+/-2.17 d in group B, and 7.53+/-1.35 d in group C (groups A and C vs group B, P<0.05). There was no significant difference in respect to the first flatus among the three groups. However, the time of tolerating oral intake with soft food in groups A and C patients was significantly shorter than that in group B patients. Levels of C-reactive protein (CRP) were significantly lower in group C and there was a more prominent and prolonged response in CRP level in patients undergoing IPC. The incidence of post-operative complications was similar in the three groups except for prolonged post-operative ileus. There was no increased risk of anastomotic leakage in patients receiving Met. CONCLUSION: The results suggest that a combination of intravenous Met and epidural pain control may be required to achieve a considerable decrease in time to resumption of oral soft diet in advanced gastric cancer patients who underwent gastrectomy and IPC. Furthermore, the administration of Met did not increase anastomotic leakage. Met has a role in the prevention of prolonged post-operative ileus.


Asunto(s)
Antagonistas de Dopamina/uso terapéutico , Gastrectomía/efectos adversos , Ileus/prevención & control , Metoclopramida/uso terapéutico , Complicaciones Posoperatorias/prevención & control , Neoplasias Gástricas/cirugía , Adulto , Anciano , Electrólitos/sangre , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dolor Postoperatorio
19.
Acta Anaesthesiol Taiwan ; 42(3): 171-3, 2004 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-15551896

RESUMEN

Pulmonary edema is a potentially life-threatening complication of acute airway obstruction that develops rapidly without warning in persons who are otherwise well. Respiratory abnormalities have been reported in patients with Parkinson's disease, especially obstructive airway. To our knowledge, pulmonary edema secondary to airway obstruction in patients with Parkinson's disease has not been reported previously. Here, we describe a case of Parkinson's disease complicated with pulmonary edema, and airway obstruction might be the mechanism.


Asunto(s)
Obstrucción de las Vías Aéreas/complicaciones , Enfermedad de Parkinson/complicaciones , Edema Pulmonar/etiología , Femenino , Humanos , Persona de Mediana Edad
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