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1.
Nutr J ; 23(1): 65, 2024 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-38886740

RESUMO

BACKGROUND: Time-restricted eating (TRE), a popular form of intermittent fasting, has shown benefits for improving metabolic diseases and cardiometabolic health. However, the effect of TRE in the regulation of blood pressure in primary hypertension remains unclear. METHODS: A 6-week randomized controlled trial was conducted, in which a total of 74 stage 1 primary hypertensive patients without high-risk were randomly assigned to Dietary Approaches to Stop Hypertension (DASH) group (n = 37) or DASH + TRE group (n = 37). Participants in the DASH + TRE group were instructed to consume their food within an 8-h window. Scientific research platform in We Chat application was used to track participants. The primary outcome was blood pressure. The secondary outcomes included body composition, cardiometabolic risk factors, inflammation-related parameters, urinary Na+ excretion, other clinical variables and safety outcomes. RESULTS: The reduction of systolic blood pressure and diastolic blood pressure were 5.595 ± 4.072 and 5.351 ± 5.643 mm Hg in the DASH group and 8.459 ± 4.260 and 9.459 ± 4.375 mm Hg in the DASH + TRE group. DASH + TRE group improved blood pressure diurnal rhythm. Subjects in DASH + TRE group had decreased extracellular water and increased urinary Na+ excretion. Furthermore, the decrease in blood pressure was associated with a reduction of extracellular water or increase in urinary Na+ excretion. In addition, safety outcomes such as nighttime hunger were also reported. CONCLUSION: Our study demonstrated that 8-h TRE + DASH diet caused a greater decrease in blood pressure in stage 1 primary hypertensive patients than DASH diet. This study may provide novel insights into the benefits of lifestyle modification in the treatment of primary hypertension. TRIAL REGISTRATION: https://www.chictr.org.cn/ (ChiCTR2300069393, registered on March 15, 2023).


Assuntos
Pressão Sanguínea , Abordagens Dietéticas para Conter a Hipertensão , Hipertensão , Humanos , Feminino , Masculino , Abordagens Dietéticas para Conter a Hipertensão/métodos , Pessoa de Meia-Idade , Hipertensão/dietoterapia , Hipertensão/terapia , Jejum , Adulto , Resultado do Tratamento
2.
Ecotoxicol Environ Saf ; 269: 115769, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38039856

RESUMO

Prenatal exposure to methamphetamine (METH) is an issue of global concern due to its adverse effects on offspring, particularly its impact on liver health, an area still not fully understood. Inulin, a recognized prebiotic, is thought to potentially ameliorate these developmental disorders and toxic injuries in progeny. To investigate the effects of prenatal METH exposure on the liver and the role of gut microbiota, we established a murine model, the subjects of which were exposed to METH prenatally and subsequently treated with inulin. Our findings indicate that prenatal METH exposure causes liver damage in offspring, as evidenced by a decreased liver index, histopathological changes, diminished glycogen synthesis, hepatic dysfunction, and alterations in mRNA profiles. Furthermore, it impairs the antioxidant system and induces oxidative stress, possibly due to changes in cecal microbiota and dysregulation of bile acid homeostasis. However, maternal inulin supplementation appears to restore the gut microbiota in offspring and mitigate the hepatotoxic effects induced by prenatal METH exposure. Our study provides definitive evidence of METH's transgenerational hepatotoxicity and suggests that maternal inulin supplementation could be an effective preventive strategy.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas , Microbioma Gastrointestinal , Metanfetamina , Efeitos Tardios da Exposição Pré-Natal , Gravidez , Feminino , Camundongos , Animais , Humanos , Metanfetamina/toxicidade , Inulina/farmacologia , Suplementos Nutricionais , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle
3.
J Endovasc Ther ; 30(3): 471-476, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36052436

RESUMO

PURPOSE: Our goal was to report the transcatheter closure of a paravalvular leak after transcatheter aortic valve replacement (TAVR) using 3-dimensional (3D) printing. CASE REPORT: A 66-year-old man who had undergone transapical and TAVR 2 years ago due to aortic regurgitation, presented with palpitations and shortness of breath owing to exacerbation of paravalvular regurgitation. Echocardiography suggested that the stented aortic valve was fixed securely in place and the valve leaflets moved normally after TAVR, but there was severe paravalvular regurgitation (3 bundles, volume 11.0 mL). Due to the high surgical risk, we closed the transcatheter paravalvular leak using preprocedural guidance with 3D printing and intraprocedural guidance with digital subtraction angiography. Postoperative echocardiography showed that the paravalvular leak was significantly reduced. 3D construction showed that the occluders and the stent valve were well placed. CONCLUSION: Transcatheter closure of a paravalvular leak of the aortic valve may be feasible with appropriate pre- and intraoperative 3D printing guidance. CLINICAL IMPACT: 3D printing technology may help surgeons to make accurate preoperative strategy before occlusion procedures.


Assuntos
Estenose da Valva Aórtica , Implante de Prótese de Valva Cardíaca , Próteses Valvulares Cardíacas , Substituição da Valva Aórtica Transcateter , Masculino , Humanos , Idoso , Substituição da Valva Aórtica Transcateter/efeitos adversos , Substituição da Valva Aórtica Transcateter/métodos , Resultado do Tratamento , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Estenose da Valva Aórtica/cirurgia , Impressão Tridimensional , Implante de Prótese de Valva Cardíaca/efeitos adversos , Implante de Prótese de Valva Cardíaca/métodos
4.
Europace ; 25(11)2023 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-37971899

RESUMO

AIMS: Traditional ablation strategies including targeting the earliest Purkinje potential (PP) during left posterior fascicular (LPF) ventricular tachycardia (VT) or linear ablation at the middle segment of LPF during sinus rhythm are commonly used for the treatment of LPF-VT. Catheter ablation for LPF-VT targeting fragmented antegrade Purkinje (FAP) potential during sinus rhythm is a novel approach. We aimed to compare safety and efficacy of different ablation strategies (FAP ablation vs. traditional ablation) for the treatment of LPF-VT. METHODS AND RESULTS: Consecutive patients with electrocardiographically documented LPF-VT referred for catheter ablation received either FAP ablation approach or traditional ablation approach. Electrophysiological characteristics, procedural complications, and long-term clinical outcome were assessed. A total of 189 consecutive patients who underwent catheter ablation for LPF-VT were included. Fragmented antegrade Purkinje ablation was attempted in 95 patients, and traditional ablation was attempted in 94 patients. Acute ablation success with elimination of LPF-VT was achieved in all patients. Left posterior fascicular block occurred in 11 of 95 (11.6%) patients in the FAP group compared with 75 of 94 (79.8%) patients in the traditional group (P < 0.001). Fragmented antegrade Purkinje ablation was associated with significant shorter procedure time (94 ± 26 vs. 117 ± 23 min, P = 0.03) and fewer radiofrequency energy applications (4.1 ± 2.4 vs. 6.3 ± 3.5, P = 0.003) compared with the traditional group. One complete atrioventricular block and one left bundle branch block were seen in the traditional group. Over mean follow-up of 65 months, 89 (93.7%) patients in the FAP group and 81 (86.2%) patients in the traditional group remained free of recurrent VT off antiarrhythmic drugs (P = 0.157). CONCLUSION: Left posterior fascicular-ventricular tachycardia ablation utilizing FAP and traditional ablation approaches resulted in similar acute and long-term procedural outcomes. Serious His-Purkinje injury did occur infrequently during traditional ablation. The use of FAP ablation approach was associated with shorter procedure time and fewer radiofrequency energy applications, especially for non-inducible patients.


Assuntos
Ablação por Cateter , Taquicardia Ventricular , Humanos , Eletrocardiografia , Resultado do Tratamento , Taquicardia Ventricular/diagnóstico , Taquicardia Ventricular/cirurgia , Bloqueio de Ramo , Ablação por Cateter/efeitos adversos , Ablação por Cateter/métodos
5.
Langmuir ; 38(21): 6676-6689, 2022 05 31.
Artigo em Inglês | MEDLINE | ID: mdl-35579564

RESUMO

Long-term and green marine antifouling coatings are an important means to prolong the service life of ships and other marine instruments and equipment. To accomplish this, we prepared three new green and high-efficiency antifouling coatings containing phthalimide derivatives inspired by capsaicin (PDIC-AC) by using a collaborative strategy that incorporates self-polishing, fouling repelling, and antifouling properties. Static simulation tests confirmed that the zinc acrylate resin of the PDIC-AC has excellent self-polishing properties due to changes in the roughness, surface free energy, and mass loss. Antifouling tests demonstrated that both PDIC and PDIC-AC possess efficient antibacterial and anti-algal effects. Moreover, marine field tests showed that the PDIC-AC are highly antifouling for at least 9 months, and their antifouling effect is similar to that of an antifouling coating with chlorothalonil (CT-AC). The collaborative strategy in this study can be used to research and develop long-term environmentally friendly antifouling coatings.


Assuntos
Incrustação Biológica , Antibacterianos , Incrustação Biológica/prevenção & controle , Propriedades de Superfície
6.
Langmuir ; 38(33): 10244-10255, 2022 08 23.
Artigo em Inglês | MEDLINE | ID: mdl-35968997

RESUMO

The evidence from many studies shows that antifoulants (Cu2O) and organic antifouling agents with broad-spectrum characteristics in antifouling coatings cause varying degrees of damage to the environment. Therefore, this study prepared Cu2O-free self-polishing antifouling coatings based on amide derivatives inspired by capsaicin (ADIC-CSAC) with green and environmentally friendly characteristics. First, the structure of ADIC and the composition of ADIC-CSAC were characterized by IR, 1H NMR, 13C NMR, HRMS, and EDX. Moreover, antibacterial, anti-algal, static raft tests and changes in the mass loss, roughness, contact angle, and surface energy were used to evaluate the antifouling and self-polishing properties of ADIC-CSAC. The test results showed that ADIC and ADIC-CSAC were successfully prepared and ADIC-CSAC possessed good antifouling and self-polishing properties. ADIC-CSAC exhibited antibacterial and anti-algal rates of over 88 and 72%, respectively, and was found to have satisfactory antifouling properties over 9 months in a real marine field. Overall, the prepared ADIC-CSAC possesses good and green antifouling and self-polishing properties, which lays a foundation for research on green antifouling coatings used for environmental protection.


Assuntos
Incrustação Biológica , Amidas , Antibacterianos/química , Antibacterianos/farmacologia , Incrustação Biológica/prevenção & controle , Capsaicina/farmacologia
7.
Surg Endosc ; 36(12): 9046-9053, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35764836

RESUMO

BACKGROUND: Postoperative pain treatment for pediatrics is often inadequate and the evidence of pediatric postoperative analgesia is scarce. To our knowledge, no report regarding the comparison among caudal block, transversus abdominis plane (TAP) block and quadratus lumborum (QL) block for children undergoing lower abdominal laparoscopic surgery was found at present. Thus this trial aimed to compare the efficacies of them for children undergoing lower abdominal laparoscopic surgery. METHODS: One hundred and eighty children aged from 1 to 12 years undergoing lower abdominal laparoscopic surgery were included and randomized to receive caudal block, TAP block or QL block. The primary outcome was the Face, Legs, Activity, Cry, and Consolability (FLACC) score at 30 min, 1 h, 4 h, 8 h, 12 h, and 24 h and tramadol consumption during first 24 h postoperatively. Secondary outcomes included the number of children received tramadol, time to first tramadol request, parents' satisfaction and postoperative adverse reactions. RESULTS: The QLB group had lower postoperative FLACC scores at 8 h (median difference - 0.43, P = 0.03) than the Caudal group and at 4 h (median difference - 0.6, P = 0.001) and 8 h (median difference - 0.43, P = 0.03) than the TAPB group. The tramadol consumption was lower in the QLB group (28.43 ± 6.55) than the TAPB group (37.17 ± 6.12, P = 0.023). Although the number of children received tramadol did not differ among the three groups, the time to first tramadol request was longer in the QLB group (7.20 ± 0.79) than the caudal group (8.42 ± 0.61, P = 0.008). No statistical difference was observed concerning other secondary outcomes. CONCLUSIONS: QLB produced more effective postoperative analgesia for children undergoing laparoscopic abdominal surgery compared with the TAPB and caudal block.


Assuntos
Analgesia , Laparoscopia , Tramadol , Criança , Humanos , Tramadol/uso terapêutico , Músculos Abdominais , Dor Pós-Operatória/etiologia , Dor Pós-Operatória/prevenção & controle , Dor Pós-Operatória/tratamento farmacológico , Ultrassonografia de Intervenção , Anestésicos Locais
8.
Gastrointest Endosc ; 94(1): 91-100.e2, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33359435

RESUMO

BACKGROUND AND AIMS: We sought to compare the efficacy and safety between endoscopic radiofrequency ablation (RFA) and stent placement alone in patients with unresectable extrahepatic biliary cancer (EBC). METHODS: In this randomized controlled trial, patients with locally advanced or metastatic cholangiocarcinoma (CCA) or ampullary cancer who were unsuitable for surgery were recruited from 3 tertiary centers. Eligible patients were randomly assigned to RFA plus plastic stent placement (RFA group) or plastic stent placement alone (stent placement alone group) in a 1:1 ratio. Both groups underwent 2 scheduled interventions with an interval of approximately 3 months. The primary outcome was overall survival (OS). RESULTS: Altogether, 174 participants completed the 2 index endoscopic interventions. No significant differences in baseline characteristics were noted between the 2 groups. The median OS was significantly higher in the RFA group (14.3 vs 9.2 months; hazard ratio, .488; 95% confidence interval, .351-.678; P < .001). A survival benefit was also shown in patients with CCA (13.3 vs 9.2 months; hazard ratio, .546; 95% confidence interval, .386-.771; P < .001). However, no significant between-group differences were found in jaundice control or stent patency duration. The postprocedural Karnofsky performance scores were significantly higher in the RFA group until 9 months (all P < .001). Adverse events were comparable between the 2 groups (27.6% vs 19.5%, P = .211), except for acute cholecystitis, which was more frequently observed in the RFA group (9 vs 0, P = .003). CONCLUSIONS: Compared with stent placement alone, additional RFA may improve OS and quality of life of patients with inoperable primary EBC who do not undergo systemic treatments. (Clinical trial registration number: NCT01844245.).


Assuntos
Ampola Hepatopancreática , Neoplasias dos Ductos Biliares , Ablação por Cateter , Neoplasias do Ducto Colédoco , Ablação por Radiofrequência , Ampola Hepatopancreática/cirurgia , Neoplasias dos Ductos Biliares/cirurgia , Ductos Biliares Intra-Hepáticos , Humanos , Plásticos , Qualidade de Vida , Stents , Resultado do Tratamento
9.
BMC Musculoskelet Disord ; 22(1): 305, 2021 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-33771135

RESUMO

BACKGROUND: Arthroscopic repair is recommended for young patients with full-thickness rotator cuff tears (RCTs), but the healing rates have raised concerns. The Southern California Orthopedic Institute (SCOI) row method has been developed based on greater than 3 decades of experience with excellent clinical outcomes; however, studies with a focus on the younger patient population are limited in number. The current study assessed the short-term clinical outcome and the initial tendon-to-bone healing in a young cohort after repair of a full-thickness RCT using the SCOI row method. METHODS: A retrospective cohort study was performed. Patients < 55 years of age who had a full-thickness RCT and underwent an arthroscopic repair using the SCOI row method were reviewed. Clinical outcomes were assessed at baseline, and 3 and 6 months post-operatively. The visual analog scale (VAS), University of California at Los Angeles (UCLA) scale, and Constant-Murley score were completed to assess pain and function. Active range of motion was also examined, including abduction and flexion of the involved shoulder. A preoperative MRI was obtained to assess the condition of the torn tendon, while 3- and 6-month postoperative MRIs were obtained to assess tendon-to-bone healing. Repeated measurement ANOVA and chi-square tests were used as indicated. RESULTS: Eighty-nine patients (57 males and 32 females) with a mean age of 44.1 ± 8.6 years who met the criteria were included in the study. Compared with baseline, clinical outcomes were significantly improved 3 and 6 months postoperatively based on improvement in the VAS, UCLA score, and Constant-Murley score, as well as range of motion. Greater improvement was also noted at the 6-month postoperative assessment compared to the 3-month postoperative assessment. Three- and six-month postoperative MRIs demonstrated intact repairs in all shoulders and footprint regeneration, which supported satisfactory tendon-to-bone healing. The mean thickness of regeneration tissue was 7.35 ± 0.76 and 7.75 ± 0.79 mm as measured from the 3- and 6-month MRI (P = 0.002). The total satisfactory rate was 93.3 %. CONCLUSIONS: Arthroscopic primary rotator cuff repair of a full-thickness RCT using the SCOI row method in patients < 55 years of age yields favorable clinical outcomes and early footprint regeneration.


Assuntos
Lesões do Manguito Rotador , Adulto , Artroscopia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Manguito Rotador/diagnóstico por imagem , Manguito Rotador/cirurgia , Lesões do Manguito Rotador/diagnóstico por imagem , Lesões do Manguito Rotador/cirurgia , Tendões , Resultado do Tratamento
10.
Zhongguo Zhong Yao Za Zhi ; 46(18): 4623-4632, 2021 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-34581070

RESUMO

This study aims to systematically evaluate the clinical efficacy and safety of Toutongning Capsules in the treatment of tension-type headache(TTH), so as to provide a corresponding basis for clinical treatment. Eight commonly used medical research databases and two clinical trial registration systems were retrieved with the time interval from the establishment of the database or system to November 2020. The randomized controlled trials of Toutongning Capsules in the treatment of TTH were screened out according to the pre-set criteria. The quality of the included papers was evaluated by the bias risk assessment tool in Cochrane Reviewers Handbook 6.1 and the data were statistically analyzed by RevMan v5.4 provided by Cochrane collaboration. A total of 13 studies were included and the quality of methodology was generally low. Meta-analysis showed that Toutongning Capsules assisted with western medicine therapy can effectively reduce the pain intensity(MD_(VAS)=-1.94,95%CI[-2.50,-1.38],P<0.000 01;MD_(NRS)=-0.83,95%CI[-0.86,-0.80],P<0.000 01), headache duration(SMD=-0.98,95%CI[-1.17,-0.79],P<0.000 01), headache frequency(MD=-1.01,95%CI[-1.16,-0.85],P<0.000 01), headache index(MD=-11.13,95%CI[-12.10,-10.16],P<0.000 01), anxiety and depression scale score(MD_(HAMA)=-4.02,95%CI[-6.58,-1.46],P=0.002;MD_(HAMD)=-2.67,95%CI[-4.04,-1.29],P=0.000 1), while Toutongning Capsules as monotherapy only reduced the headache score(MD=-2.24,95%CI[-2.97,-1.51],P<0.000 01). The available clinical studies demonstrate that Toutongning Capsules combined with western medicine in the treatment of TTH can improve the related outcome indicators, but the clinical safety and efficacy of Toutongning Capsules alone remain unclear. Due to the small number and low quality of the included studies, large-sample, multi-center, high-quality and strictly designed randomized controlled trials are still needed to verify the clinical efficacy in the future.


Assuntos
Medicamentos de Ervas Chinesas , Cefaleia do Tipo Tensional , Cápsulas , Bases de Dados Factuais , Humanos , Cefaleia do Tipo Tensional/tratamento farmacológico , Resultado do Tratamento
11.
Med Princ Pract ; 28(5): 457-462, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30995645

RESUMO

OBJECTIVES: This study aims to investigate the clinical effect of dexmedetomidine (DEX) combined with low concentrations of ropivacaine in ultrasound-guided continuous fem-oral nerve block for postoperative analgesia in elderly patients with total knee arthroplasty (TKA). MATERIALS AND METHODS: Patients were divided into three groups: group C, group D1, and group D2. For postoperative analgesia, patients in group C were given 0.15% ropivacaine, patients in group D1 were given 0.15% ropivacaine + 0.02 µg × kg-1 × h-1 DEX, and patients in group D2 were given 0.15% ropivacaine + 0.05 µg × kg-1 × h-1 DEX. The visual analogue scores in the resting state, active state (AVAS), and passive functional exercise state (PVAS), degree of joint bending, and Ramsay scores were recorded. RESULTS: The Ramsay scores were significantly higher, AVAS scores were significantly lower, PVAS scores were significantly decreased, the degree of joint bending was significantly higher, and the time to the first postoperative ambulation was shorter in groups D1 and D2 than group C. Furthermore, the time to the first postoperative ambulation was shorter in group D2 than in group D1, patients in groups D1 and D2 were more satisfied than patients in group C, and patients in group D2 were more satisfied than patients in group D1. CONCLUSION: The protocol of 0.05 µg × kg-1 × h-1 of DEX combined with 0.15% ro-pivacaine in ultrasound-guided continuous femoral nerve block for postoperative analgesia in elderly patients with TKA provides a better analgesic effect than without DEX performance.X.-Y.Z. and E.-F.Z. have contributed equally to this research.


Assuntos
Analgésicos não Narcóticos/uso terapêutico , Anestésicos Locais/uso terapêutico , Dexmedetomidina/uso terapêutico , Dor Pós-Operatória/tratamento farmacológico , Ropivacaina/uso terapêutico , Idoso , Artroplastia do Joelho , Combinação de Medicamentos , Feminino , Nervo Femoral/efeitos dos fármacos , Humanos , Masculino , Bloqueio Nervoso/métodos , Resultado do Tratamento , Ultrassonografia , Escala Visual Analógica
12.
Zhonghua Nan Ke Xue ; 25(5): 351-355, 2019 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-32216218

RESUMO

OBJECTIVE: To assess the clinical effects of transurethral holmium laser enucleation of the prostate (HoLEP) combined with Jisheng Shenqi Decoction (HoLEP + JSSD) on BPH. METHODS: This study included 110 BPH patients treated in our hospital from August 2017 to April 2018, who were randomly assigned to receive HoLEP (n = 55) or HoLEP + JSSD (n = 55). We compared the pre- and post-operative IPSS, quality of life (QOL) score, prostate volume, postvoid residual urine volume (PVR), maximum urinary flow rate (Qmax), average urinary flow rate (Qavg) and levels of serum T, E2 and T/E2 as well as postoperative complications between the two groups of patients. RESULTS: After treatment, both IPSS and QOL score were significantly lower in the HoLEP + JSSD than in the HoLEP group (P < 0.05), and so were the prostate volume and PVR (P < 0.05). The Qmax, Qavg and serum T level were significantly higher (P < 0.05) while T/E2 markedly lower in the former than in the latter group (P < 0.05). There were no statistically significant differences between the HoLEP + JSSD and HoLEP groups in the E2 level (P > 0.05) or the total incidence rate of complications postoperatively (21.82% vs 29.09%, P > 0.05). CONCLUSIONS: HoLEP + JSSD can significantly alleviate the lower urinary tract symptoms as well as improve the QOL and bladder and urinary tract functions of BPH patients.


Assuntos
Medicamentos de Ervas Chinesas/uso terapêutico , Terapia a Laser , Lasers de Estado Sólido , Hiperplasia Prostática/terapia , Ressecção Transuretral da Próstata , Hólmio , Humanos , Masculino , Qualidade de Vida , Resultado do Tratamento
14.
J Occup Environ Hyg ; 15(9): 700-713, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30081754

RESUMO

The respirable dust generated during bolt-hole drilling can present serious health problems to the miners involved in roof drilling operations. A proactive dust control approach, different from the conventional passive approaches, is proposed. Laboratory experiments have been conducted to validate the dust reduction effects of the approach. A mechanical model has been developed to simulate the rotary drag bits drilling process under different cutter conditions. The functions of the area of the total friction, drilling power, and specific energy are all presented in the model. According to this model, drilling bite depth and bit wear condition were identified as key factors influencing the respirable dust generation and energy consumption. The relationships among drilling specific energy, airborne dust concentrations of respirable and larger (1-100 µm) particles, and drilling bite depth were established. It was found that by achieving a low specific energy with a proper drilling bite depth and by avoiding worn bit use, a significant reduction of quartz-rich respirable dust from its generation source could be achieved. Once validated, the mechanical model can be used for roof bolter drilling optimization and automation control.


Assuntos
Minas de Carvão/métodos , Poeira/prevenção & controle , Poluentes Ocupacionais do Ar/análise , Exposição por Inalação/prevenção & controle , Exposição Ocupacional/prevenção & controle , Tamanho da Partícula , Quartzo
17.
J Clin Nurs ; 25(7-8): 1062-72, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26814685

RESUMO

AIMS AND OBJECTIVES: The aim of this study was to improve the postoperative handover process and immediate postoperative patient outcomes. The objective was to implement a postoperative handover protocol in the neurosurgical intensive care unit of a tertiary teaching hospital. BACKGROUND: Postoperative handover is a multidisciplinary collaborative medical activity that involves information transfer, sequenced tasks and high-quality teamwork. Evidence suggests that a lack of a standardised postoperative handover protocol adversely influences care quality and potentially compromises patient safety. As there is a lack of such protocols in China, there is an identified need for improvement. DESIGN: This was a pretest/post-test study with follow-up after three months. METHODS: A postoperative handover protocol that included a postoperative handover checklist, a standardised handover pathway and core team member involvement was developed based on research evidence and expert opinions and was then implemented and evaluated. RESULTS: Following the implementation of this protocol, improved teamwork was achieved, surgeons were more frequently present at bedside handovers, the rate of transferring key messages increased, the rate of ventilator weaning within the first six hours of neurosurgical intensive care unit admission increased, and the ventilation duration per patient decreased without any clinical incident occurring in the first 24 hours after neurosurgical intensive care unit admission. CONCLUSIONS: Following the implementation of a tailored standardised handover protocol, communication, teamwork and short-term patient outcomes were improved. RELEVANCE TO CLINICAL PRACTICE: This clinically based research highlights the need for policy makers and administrators to create unit-specific protocols for improving postoperative handovers.


Assuntos
Cuidados Críticos , Procedimentos Clínicos , Transferência da Responsabilidade pelo Paciente , Segurança do Paciente , Adulto , Idoso , China , Protocolos Clínicos , Comunicação , Feminino , Hospitais de Ensino , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Período Pós-Operatório , Centros de Atenção Terciária
18.
J Clin Nurs ; 24(1-2): 115-20, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24899241

RESUMO

AIMS AND OBJECTIVES: To assess the effect of virtual reality distraction on pain among patients with a hand injury undergoing a dressing change. BACKGROUND: Virtual reality distraction can effectively alleviate pain among patients undergoing a dressing change. Clinical research has not addressed pain control during a dressing change. DESIGN: A randomised controlled trial was performed. METHODS: In the first dressing change sequence, 98 patients were randomly divided into an experimental group and a control group, with 49 cases in each group. Pain levels were compared between the two groups before and after the dressing change using a visual analog scale. The sense of involvement in virtual environments was measured using the Pearson correlation coefficient analysis, which determined the relationship between the sense of involvement and pain level. RESULTS: The difference in visual analog scale scores between the two groups before the dressing change was not statistically significant (t = 0·196, p > 0·05), but the scores became statistically significant after the dressing change (t = -30·792, p < 0·01). The correlation between the sense of involvement in a virtual environment and pain level during the dressing was statistically significant (R(2) = 0·5538, p < 0·05). CONCLUSION: Virtual reality distraction can effectively alleviate pain among patients with a hand injury undergoing a dressing change. Better results can be obtained by increasing the sense of involvement in a virtual environment. RELEVANCE TO CLINICAL PRACTICE: Virtual reality distraction can effectively relieve pain without side effects and is not reliant on a doctor's prescription. This tool is convenient for nurses to use, especially when analgesics are unavailable.


Assuntos
Bandagens/efeitos adversos , Traumatismos da Mão/complicações , Traumatismos da Mão/terapia , Manejo da Dor/métodos , Dor/prevenção & controle , Terapia de Exposição à Realidade Virtual , Adulto , Analgésicos/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Dor/diagnóstico , Dor/etiologia , Interface Usuário-Computador , Adulto Jovem
19.
J Card Surg ; 29(3): 413-6, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24588715

RESUMO

The pentalogy of Cantrell is a rare and fatal malformation. A left ventricular diverticulum is a common finding of this pentalogy. The present report summarizes our experience with three patients who suffered from pentalogy of Cantrell. All three cases had a left ventricular diverticulum. The intracardiac malformations and the left ventricular diverticulum were corrected simultaneously. All patients recovered uneventfully. One-stage surgical correction could improve short-term outcomes in selected patients with pentalogy of Cantrell.


Assuntos
Procedimentos Cirúrgicos Cardíacos/métodos , Divertículo/complicações , Divertículo/cirurgia , Cardiopatias/complicações , Cardiopatias/cirurgia , Ventrículos do Coração/cirurgia , Pentalogia de Cantrell/complicações , Pentalogia de Cantrell/cirurgia , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Resultado do Tratamento
20.
Zhonghua Wai Ke Za Zhi ; 52(2): 117-21, 2014 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-24809520

RESUMO

OBJECTIVE: To study the value of rigid choledochoscope and pneumatic lithotripsy in targeting treatment of hepatolithiasis under the guidance of three-dimensional visualization technology. METHODS: The 26 patients with hepatolithiasis from February 2012 to June 2013 were analyzed. There were 11 male and 15 female patients with a median age of 55.2 years (range 31-75 years old). The image data of CT scanning of hepatolithiasis were introduced into medical image three-dimensional visualization system (MI-3DVS) for three-dimensional reconstruction, 3D classifications of hepatolithiasis were obtained based on it. Applied rigid choledochoscope and pneumatic lithotripsy in targeting treatment of hepatolithiasis guided by three-dimensional visualization technology. RESULTS: The 26 patients (29 times) experienced targeting treatment of rigid choledochoscope and pneumatic lithotripsy under the guidance of three-dimensional visualization technology, including:19 cases (4 cases of type IIc) through percutaneous biliary tract sinus, laparoscopic surgery 3 cases, laparotomy 4 cases. Three patients underwent surgery twice. The final stone clearance rate was 100%.One case confirmed combined with cholangiocarcinoma and transfer to radical resection.Intraoperative blood loss was (41.7 ± 8.5) ml, operating time was (100.8 ± 7.6) minutes, and postoperative hospital stay was (7.0 ± 0.6) days. A patient suffered postoperative biliary tract bleeding.Without bile duct injury, bleeding, bile leakage and other complications were occurred. CONCLUSION: Rigid choledochoscope and pneumatic lithotripsy in the treatment of hepatolithiasis under the guidance of three-dimensional visualization technology achieved digital minimally invasive treatment of hepatolithiasis, which can be a new approach to hepatobiliary surgery.


Assuntos
Colelitíase/cirurgia , Imageamento Tridimensional , Litotripsia/métodos , Adulto , Idoso , Ductos Biliares Intra-Hepáticos/cirurgia , Endoscópios , Endoscopia/instrumentação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
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