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1.
Surg Case Rep ; 10(1): 59, 2024 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-38467960

RESUMO

BACKGROUND: Celiac axis stenosis (CAS) is frequently observed in patients undergoing pancreaticoduodenectomy (PD). This poses challenges because of the potential disruption of the hepatic arterial blood flow. CASE PRESENTATION: We present the case of an 81-year-old woman diagnosed with pancreatic head cancer and severe CAS caused by calcification. The patient received neoadjuvant chemotherapy (NAC) and underwent preoperative endovascular stenting of the celiac axis to restore blood flow. After two cycles of NAC, subtotal stomach-preserving PD was performed. An intraoperative assessment of the hepatic arterial blood flow determined that it was well maintained. PD was performed using the standard technique; specialized techniques were not necessary. Importantly, no ischemic complications were encountered. CONCLUSION: This case report describes the successful combination of preoperative celiac axis stenting, NAC, and surgical intervention for the management of CAS in an elderly patient with pancreatic cancer. This approach offers a potential solution for maintaining the hepatic arterial blood flow in the presence of CAS without vascular reconstruction, particularly in elderly individuals.

2.
NMC Case Rep J ; 10: 21-25, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36937500

RESUMO

A 78-year-old man underwent a tracheostomy after embolization for a dural arteriovenous fistula. Seventy days after tracheostomy, arterial bleeding appeared through the tracheal stoma. The bleeding stopped spontaneously. However, two days later, arterial bleeding reappeared, and he was diagnosed with a tracheo-innominate artery fistula (TIF). He then underwent urgent endovascular covered stent placement. After the procedure, there was no bleeding. TIF can be a fatal complication after tracheostomy and it is generally treated with open chest surgery. However, a successful endovascular treatment for TIF has recently been reported and may yield better results.

3.
J Cardiol ; 81(2): 222-228, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36126908

RESUMO

BACKGROUND: Exercise therapy following endovascular treatment (EVT) is important for patients with peripheral artery disease (PAD); however, continuous exercise therapy is difficult to be performed in clinical practice. This study aimed to investigate the association between the implementation of home-based exercise using pedometers after EVT and 1-year clinical outcomes. METHODS: This multicenter observational prospective cohort registry included patients with PAD complaining of intermittent claudication who underwent EVT for aortoiliac and/or femoropopliteal artery lesions between January 2016 and March 2019. Patients were instructed to perform home-based exercises using a specific pedometer after EVT. The study population was divided into good and poor recording groups according to the frequency of the pedometer measurements. The good recording group was defined as those who completed ≥50 % of the prescribed daily pedometer recording during the follow-up period. The poor recording group was defined as those with an inability to use a pedometer and/or who completed <50 % of the prescribed daily pedometer recordings. The primary outcome was 1-year major adverse events (MAE), defined as a composite of all-cause death, non-fatal myocardial infarction, non-fatal stroke, target vessel revascularization, and major amputation of the target limb. RESULTS: The mean age was 74.4 years; 78 % were male. A total of 623 lesions were analyzed (58.7 % aortoiliac, 41.3 % femoropopliteal). At 1 year, a lower cumulative incidence of MAE was observed in the good recording group compared to that in the poor recording group [10/233 (4.3 %) vs. 35/267 (13.7 %) patients, respectively; p < 0.001]. Multivariate Cox regression analysis showed that patients in the good recording group had a lower hazard ratio for 1-year MAE (0.33; 95 % confidence interval, 0.16-0.68; p = 0.004) than that in the poor recording group. CONCLUSIONS: Good self-recording of pedometer measurements was associated with favorable prognosis in patients with PAD following EVT.


Assuntos
Procedimentos Endovasculares , Doença Arterial Periférica , Humanos , Masculino , Idoso , Feminino , Estudos Prospectivos , Actigrafia , Resultado do Tratamento , Fatores de Risco , Estudos Retrospectivos , Doença Arterial Periférica/terapia , Doença Arterial Periférica/etiologia , Prognóstico
4.
ESC Heart Fail ; 8(3): 2240-2247, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33760403

RESUMO

AIMS: Fibrosis-4 index (FIB-4 index), calculated by age, aspartate aminotransferase, alanine aminotransferase, and platelet count, is a simple marker to evaluate liver fibrosis and is associated with right-sided heart failure. However, the clinical relevance of FIB-4 in patients with heart failure with preserved ejection fraction (HFpEF) remains unclear. We investigated the prognostic implication of the FIB-4 index regarding right ventricular dysfunction in patients with HFpEF. METHODS AND RESULTS: This prospective study included 116 consecutive HFpEF patients (mean age 79 years, 43% male) hospitalized with acute decompensated heart failure. We evaluated the association of the FIB-4 index with right ventricular function determined by tricuspid annular plane systolic excursion (TAPSE) and tricuspid lateral annular systolic velocity (S') before discharge. Cox regression analysis was performed to evaluate the association between the FIB-4 index and major adverse cardiovascular events (MACE) defined as the composite of cardiovascular death, readmission for heart failure, nonfatal myocardial infarction, and nonfatal stroke. FIB-4 index before discharge was significantly lower than that at admission (2.62 [1.92-3.46] and 3.03 [2.05-4.67], median [interquartile range], P < 0.001). Left ventricular ejection fraction, TAPSE, and S' before discharge were 62.7 (55.9-68.6) %, 17.5 ± 4.6 mm (mean ± standard deviation), and 10.0 (8.0-12.0) cm/s, respectively. In multiple linear regression analysis, the FIB-4 index before discharge was inversely correlated with TAPSE (ß minus;0.244, P = 0.014) and S' (ß -0.266, P = 0.009). During a median follow-up of 736 days, 37 MACE occurred. Multivariate Cox regression analysis revealed that a high FIB-4 index before discharge (per 1 point) was a significant predictor of MACE (hazard ratio 1.270, 95% confidence interval 1.052-1.532) after adjustment for male, serum creatinine, and haemoglobin. Receiver operating characteristic analysis indicated that the optimal cut-off value of FIB-4 index before discharge to predict MACE was 3.11. Kaplan-Meier survival analysis showed that patients with a FIB-4 index before discharge ≥3.11 had a significantly poorer prognosis than patients with FIB-4 index before discharge <3.11 (P = 0.029). Patients with an FIB-4 index ≥3.11 had a 2.202-fold (95% confidence interval 1.110-4.368) increased risk of MACE compared with those with an FIB-4 index <3.11 after adjustment for male, serum creatinine, and haemoglobin. CONCLUSIONS: An increase in the FIB-4 index was associated with right ventricular dysfunction and a higher risk of future MACE in patients with HFpEF.


Assuntos
Insuficiência Cardíaca , Função Ventricular Direita , Idoso , Feminino , Fibrose , Insuficiência Cardíaca/diagnóstico , Humanos , Masculino , Prognóstico , Estudos Prospectivos , Volume Sistólico , Função Ventricular Esquerda
5.
J Hypertens ; 38(6): 1174-1182, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32371808

RESUMO

OBJECTIVES: The current study was performed to determine whether pulmonary vein isolation (PVI) improves nocturnal hypertension in patients with paroxysmal atrial fibrillation (PAF). BACKGROUND: Abnormal night-time blood pressure (BP) fluctuation is a risk factor for atrial fibrillation. Imbalance of autonomic nervous function is a risk factor common to both of these abnormalities. PVI can reportedly modify the autonomic nervous function balance in patients with atrial fibrillation. METHODS: The study population comprised 50 consecutive patients (mean age, 69.8 ±â€Š7.5 years; 35.0% male) with PAF scheduled for PVI. Both 24-h ambulatory BP monitoring and heart rate variability analysis were performed before and at 3 months after PVI. RESULTS: Patients were classified into two groups according to the presence of nocturnal BP dipping before PVI: the normal dipping group (n = 27) and the nondipping group (n = 23). The low-frequency spectrum power and the ratio of low-frequency spectrum power to high-frequency spectrum power (low-frequency spectrum/high-frequency spectrum) were higher in the nondipping than the normal dipping group (low-frequency spectrum: 219.9 ±â€Š210.2 vs. 92.7 ±â€Š50.5 ms, respectively, P = 0.03; low-frequency spectrum/high-frequency spectrum: 1.8 ±â€Š1.9 vs. 0.9 ±â€Š0.8, respectively, P = 0.05). In the nondipping group, the elevated night-time BP disappeared in eight (35%) patients at 3 months after PVI, which was associated with an increase in high-frequency spectrum power. These patients did not develop atrial fibrillation recurrence during follow-up (mean, 568 ±â€Š218 days). CONCLUSION: Among patients with PAF, the nondipping group showed greater sympathetic activity (higher low-frequency spectrum power and low-frequency spectrum/high-frequency spectrum) than the dipping group. Restoration of BP dipping after PVI is associated with increased parasympathetic activity (higher high-frequency spectrum power) and reduced recurrence of arrhythmic events.


Assuntos
Fibrilação Atrial , Ablação por Cateter , Hipertensão , Idoso , Fibrilação Atrial/complicações , Fibrilação Atrial/epidemiologia , Fibrilação Atrial/cirurgia , Feminino , Humanos , Hipertensão/complicações , Hipertensão/epidemiologia , Masculino , Pessoa de Meia-Idade
6.
Circ J ; 84(3): 456-462, 2020 02 25.
Artigo em Inglês | MEDLINE | ID: mdl-32037380

RESUMO

BACKGROUND: In heart failure (HF) patients implanted with high-energy devices, worsening of HF can be diagnosed from intrathoracic impedance (ITI) before symptoms appear. Early therapeutic intervention can prevent HF worsening, but the optimal intervention remains unknown. This study aimed to examine which lifestyle modifications or medications can improve HF indicators in asymptomatic HF patients diagnosed from ITI.Methods and Results:This multicenter, prospective, randomized study included patients with high-energy devices, left ventricular ejection fraction <40%, or with a history of HF hospitalization. After the OptiVol alert was evoked by decreased ITI, patients underwent examinations. If they were diagnosed with HF, they were randomly assigned to 3 groups: lifestyle modification, diuretic, or nitrate. After 1 week, they underwent the same examinations. The primary endpoint was change in ITI and serum B-type natriuretic peptide (BNP). Totally, 57 patients were randomized. In all 3 groups, ITI was significantly increased post-intervention compared with pre-intervention. In the diuretic and nitrate groups, logBNP post-intervention was significantly lower than pre-intervention, but not in the lifestyle modification group. CONCLUSIONS: Compared with lifestyle modifications, diuretic and nitrate therapy for 1 week may be more effective management of HF detected by decreased ITI. However, lifestyle modification may have the additional benefits of reducing the workload or cost.


Assuntos
Diuréticos/uso terapêutico , Insuficiência Cardíaca/terapia , Nitratos/uso terapêutico , Comportamento de Redução do Risco , Vasodilatadores/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Doenças Assintomáticas , Biomarcadores/sangue , Diuréticos/efeitos adversos , Feminino , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Humanos , Japão , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/sangue , Nitratos/efeitos adversos , Admissão do Paciente , Fragmentos de Peptídeos/sangue , Estudos Prospectivos , Recuperação de Função Fisiológica , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Vasodilatadores/efeitos adversos
7.
Heart ; 104(4): 318-323, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28814492

RESUMO

OBJECTIVE: Although blood pressure (BP) is a major determinant of arterial stiffness, whether high pulse wave velocity (PWV) adversely influences cardiac parameters and cardiovascular (CV) outcome in patients without high BP remains unclear. METHODS: Outpatients without high BP (n=320), defined as systolic BP ≥140 mm Hg, were enrolled in this retrospective study. At baseline, all patients underwent echocardiography and multidetector CT to determine the coronary artery calcification (CAC) score. Arterial stiffness was assessed based on brachial-ankle PWV (baPWV), from which patients were classified into two groups: those with high (≥18 m/s, n=89) and low baPWV (<18 m/s, n=231). Cardiac parameters and CV event incidence during the follow-up period were compared between these groups. RESULTS: In multivariable linear regression analysis, baPWV was significantly associated with CAC score and serum N-terminal pro-brain natriuretic peptide hormone level, after adjustment for confounding factors. In multivariable logistic regression analysis, baPWV ≥18 m/s was significantly associated with CAC score ≥400 (OR 2.466, 95% CI 1.012 to 6.009, p=0.0471). Kaplan-Meier analysis showed that the high-baPWV group experienced more CV events during the 575 days of follow-up (20% vs 6%, p=0.0003). CONCLUSIONS: High baPWV was associated with greater CAC and a high risk of a future CV event, especially coronary artery disease, even in patients without high BP.


Assuntos
Doença da Artéria Coronariana , Vasos Coronários , Hipertensão , Calcificação Vascular , Idoso , Índice Tornozelo-Braço/métodos , Determinação da Pressão Arterial/métodos , Sistema Cardiovascular/fisiopatologia , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/fisiopatologia , Vasos Coronários/diagnóstico por imagem , Vasos Coronários/patologia , Ecocardiografia/métodos , Feminino , Humanos , Hipertensão/diagnóstico , Hipertensão/epidemiologia , Hipertensão/etiologia , Hipertensão/fisiopatologia , Incidência , Japão/epidemiologia , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada Multidetectores/métodos , Análise de Onda de Pulso , Estudos Retrospectivos , Calcificação Vascular/complicações , Calcificação Vascular/diagnóstico por imagem , Rigidez Vascular
8.
J Cardiol ; 70(5): 425-431, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28673507

RESUMO

BACKGROUND: Ambulatory measurement of intrathoracic impedance (ITI) with an implanted device has potential to assess fluid accumulation in patients with heart failure (HF), but it has failed to reduce HF-related hospitalization because of a high false-positive rate. OBJECTIVE: We aimed to examine whether a modified algorithm (OptiVol 2.0) could reduce false-positive HF events documented in our multicenter trial (MOMOTARO). METHODS: The MOMOTARO trial assessed the potential that fluid index could predict fluid accumulation and therefore HF. The MOMOTARO trial assessed whether HF events could be detected based on fluid accumulation as assessed by fluid index. We re-analyzed raw data of ITI trends of the threshold-crossing events with the modified algorithm. RESULTS: The study consisted of 195 patients who had been implanted with a high-energy device. During a mean follow-up period of 658±165 days, there were 154 primary HF events detected by the previous algorithm (OptiVol 1.0). With the previous algorithm, there was no significant difference in log concentration of brain natriuretic peptide (BNP) between baseline and alert (p=0.21). Among 150 alerts of the previous algorithm, only 37 reached the threshold by the modified algorithm, and log BNP was significantly higher in these 37 events compared with the baseline value (2.40±0.46 vs. 2.27±0.52, p<0.01). CONCLUSION: Our simulation study demonstrates that fluid index calculated with the modified algorithm reduces the number of false-positive threshold-crossing HF events and is promising for accurate diagnosis of fluid accumulation in patients.


Assuntos
Algoritmos , Cardiografia de Impedância , Insuficiência Cardíaca/diagnóstico , Idoso , Impedância Elétrica , Feminino , Insuficiência Cardíaca/sangue , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/sangue
9.
J Cardiol Cases ; 15(4): 125-128, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30279758

RESUMO

A 76-year-old man taking theophylline was admitted to our hospital with congestive heart failure and supraventricular tachycardia (SVT). After admission, he developed cardiogenic shock as a result of SVT storm, which was refractory to medical treatment including adenosine and electrical cardioversion. The serum theophylline concentration at admission was identified as toxic. Therefore, theophylline toxicity was considered as a major cause of the SVT storm. Hemodynamic stability was achieved by using mechanical circulatory support. Additionally, continuous hemodiafiltration was performed to remove theophylline, and it was effective for suppression of SVT. The patient was successfully weaned off mechanical circulatory support. After the patient's general status had improved, an electrophysiological study was performed, and it showed orthodromic atrioventricular reentrant tachycardia with a right free wall accessory pathway. Radiofrequency catheter ablation was successfully performed. .

10.
J Cardiol ; 67(4): 358-64, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26254962

RESUMO

BACKGROUND: The presence of coronary artery calcification (CAC) and its severity predict future cardiovascular events and is used for risk stratification. However, the association of CAC with heart failure (HF) in patients without a history of coronary artery disease (CAD) remains unclear. This study aimed to determine the correlations of CAC with N-terminal pro-B-type natriuretic peptide (NT-proBNP) and HF events in patients without a history of CAD or HF. METHODS: From June 2010 to June 2013, a total of 487 patients without a history of CAD and HF were enrolled. All of the patients underwent plane multi-detector computed tomography. They were divided into four categories according to CAC scores: ≤10, 11-100, 101-400, and ≥401. RESULTS: The proportion of patients with high NT-proBNP levels increased with CAC categories (p<0.0001). The CAC score was associated with NT-proBNP levels ≥400pg/ml, with an odds ratio of 2.901 (95% confidence interval: 1.368-6.151, p=0.0055) for CAC scores ≥401 compared with CAC scores of 0-10 after adjustment for confounding factors. During the follow-up period of 497±315 days, nine patients were admitted for HF. Kaplan-Meier analysis showed that patients with CAC scores ≥401 had a lower rate of freedom from admission for HF with cumulative incidences of 0.4%, 1%, 2%, and 8% for CAC scores of 0-10, 11-100, 101-400, and ≥401, respectively (p<0.0001). Increasing CAC scores were associated with an increase in incidence of admission for HF, with a hazard ratio of 10.371 for CAC scores ≥401 (95% CI: 1.062-101.309, p=0.0443) compared with CAC scores of 0-10 after adjustment for risk factors. CONCLUSION: Severe CAC is an independent determinant of high NT-proBNP levels and a predictor of admission for HF in a population without a history of CAD or HF.


Assuntos
Calcinose/complicações , Doença da Artéria Coronariana/complicações , Insuficiência Cardíaca/etiologia , Idoso , Idoso de 80 Anos ou mais , Calcinose/patologia , Doença da Artéria Coronariana/patologia , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/sangue , Razão de Chances , Fragmentos de Peptídeos/sangue , Modelos de Riscos Proporcionais , Fatores de Risco , Índice de Gravidade de Doença , Tomografia Computadorizada por Raios X
11.
JACC Cardiovasc Interv ; 8(11): 1493-1502, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26404203

RESUMO

OBJECTIVES: This study sought to investigate the 3-year follow-up results of OLIVE registry patients. BACKGROUND: Although favorable 12-month clinical outcomes after endovascular therapy (EVT) in OLIVE registry patients with critical limb ischemia (CLI) from infrainguinal disease have been reported, long-term results after EVT remain unknown. METHODS: This was a prospective multicenter registry study that consecutively enrolled patients who received infrainguinal EVT for CLI. The primary outcome was 3-year amputation-free survival (AFS), whereas secondary outcome measures were 3-year freedom from major adverse limb events (MALE), wound-free survival, and wound recurrence rate. Prognostic predictors for each outcome were also elucidated by Cox proportional hazard regression analysis or the log-rank test. RESULTS: The completion rate of 3-year follow-up was 95%. Three-year AFS, freedom from MALE, and wound-free survival rates were 55.2%, 84.0%, and 49.6%, respectively. Wound recurrence out to 3 years was 43.9%. After multivariable analysis, age (hazard ratio [HR]: 1.43, p = 0.001), body mass index ≤18.5 (HR: 2.17, p = 0.001), dialysis (HR: 2.91, p < 0.001), and Rutherford 6 (HR: 1.64, p = 0.047) were identified as predictors of 3-year major amputation or death. Statin use (HR: 0.28, p = 0.02), Rutherford 6 (HR: 2.40, p = 0.02), straight-line flow to the foot (HR: 0.27, p = 0.001), and heart failure (HR: 1.96, p = 0.04) were identified as 3-year MALE predictors. Finally, CLI due to isolated below-the-knee lesion was a wound recurrence predictor (HR: 4.28, p ≤ 0.001). Three-year survival, freedom from major amputation, and reintervention rates were 63.0%, 87.9%, and 43.2%. CONCLUSIONS: In CLI patients with infrainguinal lesions, 3-year clinical results of EVT were reasonable despite high reintervention and moderate ulcer recurrence rate. (A Prospective, Multi-Center, Three-Year Follow-Up Study on Endovascular Treatment for Infra-Inguinal Vessel in Patients With Critical Limb Ischemia [OLIVE 3-Year Follow-Up Study]; UMIN000014759).


Assuntos
Procedimentos Endovasculares , Isquemia/terapia , Doença Arterial Periférica/terapia , Idoso , Idoso de 80 Anos ou mais , Amputação Cirúrgica , Estado Terminal , Intervalo Livre de Doença , Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/mortalidade , Feminino , Humanos , Isquemia/diagnóstico , Isquemia/mortalidade , Japão , Estimativa de Kaplan-Meier , Salvamento de Membro , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/mortalidade , Modelos de Riscos Proporcionais , Estudos Prospectivos , Sistema de Registros , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Cicatrização
12.
Int J Cardiol ; 190: 287-92, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25932809

RESUMO

BACKGROUND: Cystatin C is an endogenous marker of kidney function that overcomes the limitations of serum creatinine. High serum cystatin C levels have been associated with increased cardiovascular mortality and morbidity. In this cross-sectional study, we aimed to determine the associations between serum cystatin C levels and structural and functional cardiac changes in patients with stage 2 or 3 chronic kidney disease (CKD). METHODS AND RESULTS: We enrolled 429 consecutive patients (aged 24-97 years) with CKD stage 2 or 3 and left ventricular (LV) ejection fraction (LVEF)>40%. Echocardiographic parameters, including LV mass index (LVMI), early diastolic mitral annulus velocity (e' velocity), left atrial volume index (LAVI), and N-terminal of the prohormone brain natriuretic peptide (NT-proBNP) were measured. Patients were categorized into quartiles according to serum cystatin C levels. Cystatin C was associated with LAVI (p=0.0055), LVEF (p=0.0432), LVMI (p=0.0409), e' (p=0.0051), E/e' (p=0.0027), and log-transformed NT-proBNP (p<0.0001) according to multivariate linear regression analysis, after adjustment for confounding factors including creatinine-based estimated glomerular filtration rate (eGFRcreat) and urinary albumin to creatinine ratio. Incidence of eccentric and concentric hypertrophy increased with increasing cystatin C (Q1, 38%; Q2 49%; Q3, 51%; Q4, 66%, p=0.0008), mainly because of increasing concentric hypertrophy (Q1, 30%; Q2, 39%; Q3, 39%; Q4, 51%, p=0.0187). CONCLUSION: A high serum cystatin C is strongly associated with structural cardiac abnormalities such as LVH and left atrial enlargement, impaired LV relaxation, and an increased NT-proBNP, independently of eGFRcreat in patients with stage 2 or 3 CKD.


Assuntos
Cistatina C/sangue , Átrios do Coração , Hipertrofia Ventricular Esquerda/sangue , Insuficiência Renal Crônica/sangue , Disfunção Ventricular Esquerda/sangue , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Feminino , Átrios do Coração/diagnóstico por imagem , Humanos , Hipertrofia Ventricular Esquerda/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/epidemiologia , Masculino , Pessoa de Meia-Idade , Insuficiência Renal Crônica/diagnóstico por imagem , Insuficiência Renal Crônica/epidemiologia , Ultrassonografia , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/epidemiologia , Adulto Jovem
13.
Circ J ; 71(2): 220-5, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17251671

RESUMO

BACKGROUND: Sirolimus inhibits endothelial cell proliferation in vitro, but although the sirolimus-eluting stent (SES) is widely used because of the very low rates of in-stent restenosis, the influence of SES on coronary endothelial vasomotor function in humans is not well known. METHODS AND RESULTS: The present study included 21 patients treated with SES, and 12 patients treated with conventional bare metal stent (BMS). Endothelium-dependent vasomotor function was evaluated 6 months after stent implantation, using intracoronary acetylcholine infusion. Changes in diameter at the 5-mm proximal and distal edges of the stent, and at the control segment were assessed by quantitative coronary angiography. To evaluate native endothelial function, an intracoronary acetylcholine test was performed before stenting. In the 21 SES patients acetylcholine infusion at 10(-8) mol/L and 10(-7) mol/L produced significant vasoconstriction in the proximal stent segment (-11.3+/-10.3%, and -14.1+/-11.3%, respectively) and the distal stent segment (-13.7+/-9.3%, and -17.5+/-12.5%, respectively). In contrast, in the 12 BMS patients, acetylcholine infusion at the same concentrations did not produce a vasoconstrictive response in the proximal stent segment (5.0+/-8.2% and 4.9+/-9.1%, respectively) or the distal stent segment (4.2+/-7.6% and 5.1+/-7.7%, respectively). Intracoronary nitroglycerin induced a similar grade of vasodilation in the peri-stent area in both groups. Local endothelial function before SES implantation showed no vasoconstrictive response. CONCLUSIONS: In contrast to vasodilation in BMS patients, SES implantation in the peri-stent area resulted in a vasoconstrictive response to acetylcholine. SES implantation may impair endothelial function in humans.


Assuntos
Implante de Prótese Vascular/efeitos adversos , Endotélio Vascular/efeitos dos fármacos , Imunossupressores/administração & dosagem , Sirolimo/administração & dosagem , Stents/efeitos adversos , Sistema Vasomotor/fisiopatologia , Acetilcolina/farmacologia , Idoso , Idoso de 80 Anos ou mais , Endotélio Vascular/inervação , Feminino , Humanos , Imunossupressores/efeitos adversos , Masculino , Pessoa de Meia-Idade , Nitroglicerina/farmacologia , Sirolimo/efeitos adversos , Vasoconstrição/efeitos dos fármacos , Vasodilatação/efeitos dos fármacos , Vasodilatadores/farmacologia
15.
J Cardiol ; 47(1): 39-46, 2006 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-16475472

RESUMO

A 80-year-old woman was admitted to our hospital because of chest pain. Electrocardiography revealed ST segment elevation in the I, aVL, and V1-V5 leads. Echocardiography revealed left ventricular apical aneurysmal change with ejection fraction of 31%. Coronary angiography showed no abnormalities. Creatine kinase was not elevated in her clinical course. The diagnosis was takotsubo cardiomyopathy. Transthoracic Doppler echocardiography was performed on the 2nd hospital day. Coronary flow velocity pattern in the left anterior descending artery revealed shortened diastolic deceleration time (108 msec) and systolic retrograde flow. Asynergy of the left ventricle gradually improved, but still persisted slightly at 6 months after discharge. Most patients with takotsubo cardiomyopathy have normal coronary flow velocity pattern in the acute phase. In this case, no reflow pattern of coronary flow was observed during prolonged recovery from left ventricular regional wall motion abnormality.


Assuntos
Cardiomiopatias/diagnóstico por imagem , Cardiomiopatias/fisiopatologia , Circulação Coronária , Eletrocardiografia , Função Ventricular Esquerda , Idoso de 80 Anos ou mais , Velocidade do Fluxo Sanguíneo , Angiografia Coronária , Ecocardiografia , Ecocardiografia Doppler , Feminino , Humanos , Contração Miocárdica
16.
Circ J ; 70(1): 37-43, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16377922

RESUMO

BACKGROUND: The effects of intraaortic balloon pumping (IABP) are considered to be a reduction in myocardial oxygen demand because of systolic left ventricular unloading and an increase in coronary blood flow. Although the former effect has been consistently recognized, the latter effect remains controversial. The purpose of this study was to examine the effects of IABP on the angiographic no-reflow phenomenon. METHODS AND RESULTS: The coronary flow velocity pattern of the left anterior descending artery (LAD) was assessed by transthoracic Doppler echocardiography during IABP counterpulsation, and the effects of IABP were compared between angiographic no-reflow and good reflow patients. The study group comprised 17 patients with anterior myocardial infarction who underwent percutaneous coronary intervention and IABP for typical clinical indications. Echocardiographic data were obtained during 2:1 balloon pumping after coronary angioplasty. In the good reflow group (n=9), IABP counterpulsation increased the mean diastolic flow velocity (MDFV) and peak diastolic flow velocity (PDFV) by 56 +/- 32% (p<0.001) and 48 +/- 27% (p<0.001), respectively. In contrast, in the no-reflow group (n=8), IABP only increased the MDFV and PDFV by 19 +/- 33% (p=0.24) and 6 +/- 12% (p=0.22), respectively. Diastolic deceleration time was smaller and the prevalence of systolic retrograde flow was greater in the no-reflow group than in the good reflow group, and IABP affected neither parameter. CONCLUSIONS: IABP had limited effects on LAD flow velocity pattern in patients with the angiographic no-reflow phenomenon.


Assuntos
Balão Intra-Aórtico/métodos , Infarto do Miocárdio/terapia , Idoso , Velocidade do Fluxo Sanguíneo , Pressão Sanguínea , Angiografia Coronária/métodos , Circulação Coronária , Vasos Coronários , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico por imagem , Seleção de Pacientes
17.
Clin Oncol (R Coll Radiol) ; 15(8): 467-72, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14690002

RESUMO

AIMS: To compare the initial effect and toxicity, response duration and survival time of intra-arterial infusion therapy using a combination of cisplatin (CDDP) and docetaxel (DXT) with those using CDDP alone for treatment of recurrent head and neck cancers. MATERIALS AND METHODS: Twenty-nine patients with recurrent head and neck cancers were treated using intra-arterial infusion chemotherapy. The chemotherapeutic regimens consisted of CDDP alone (n=12) or a combination of CDDP and DTX (n=17). In the CDDP-DTX group, both CDDP 70 mg/m2 and DTX 60 mg/m2 were administrated via the external carotid artery (ECA) or via branches of the ECA or subclavian artery. In the CDDP-alone group, CDDP 70 mg/m2 was infused. The tumour response (response rate = complete response + partial response) and toxicities (World Health Organization [WHO] classification grades 3 and 4) were evaluated in both groups and compared by Fisher's exact probability test. RESULTS: The response rates in the CDDP-DTX group and the CDDP-alone group were 71% (12/17) and 50% (6/12), respectively (P=0.44). Leucocytopenia and neutropenia (grades 3 and 4) were significantly more prevalent in the former than in the latter group (11/17 vs 1/12; 10/17 vs 1/12) (P<0.01). However, there were no infectious diseases in any of the patients. CONCLUSION: Combined cisplatin-docetaxel intra-arterial infusion therapy was shown to be effective and safe for recurrent head and neck cancers.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cisplatino/uso terapêutico , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Infusões Intra-Arteriais , Taxoides/uso terapêutico , Adulto , Idoso , Cisplatino/administração & dosagem , Docetaxel , Feminino , Neoplasias de Cabeça e Pescoço/mortalidade , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Taxoides/administração & dosagem , Resultado do Tratamento
18.
Am J Surg ; 185(3): 285-7, 2003 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-12620572

RESUMO

Endoscopic mucosal resection (EMR) has been widely accepted as a minimally invasive and standard treatment for early gastric cancers without ulceration or signs of submucosal invasion and meeting the criteria for diameter, macroscopic appearance, and well- or moderately differentiated histology. However, EMR cannot be applied to some cases owing to technical difficulties relating to the intragastric location of the cancers even when the above criteria are satisfied. We report here a new approach to EMR for early cancers of the cardia located close to the esophagocardia junction that are outside the indications for ordinary EMR.


Assuntos
Cárdia/cirurgia , Mucosa Gástrica/cirurgia , Gastroscopia/métodos , Laparotomia/métodos , Neoplasias Gástricas/cirurgia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos
19.
Gan To Kagaku Ryoho ; 29(9): 1627-30, 2002 Sep.
Artigo em Japonês | MEDLINE | ID: mdl-12355950

RESUMO

A 56-year-old man presented with dysphagia, and was found to have a type 3 advanced gastric cancer with bilateral multiple lung metastases. This patient was treated with low-dose 5-FU plus CDDP chemotherapy. In the first course, CDDP (6 mg/m2/day) plus 5-FU (300 mg/m2/day) were infused for 5 successive days a week, but a tumor response was not achieved. Therefore, in the second course, CDDP (6 mg/m2/day) plus 5-FU (600 mg/m2/day) were infused every other day (3 days a week). In response to the treatment, both the gastric tumor and the lung metastases almost completely disappeared (reduction rate 95%), and PR was achieved. The CEA level markedly decreased, from 260.3 to 1.4 ng/ml and the patient's symptoms disappeared. Following this treatment, low-dose CDDP plus UFT therapy was performed and the PR was maintained for 12 months. This report shows a case of advanced gastric cancer that responded to low-dose 5-FU plus CDDP.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Gástricas/tratamento farmacológico , Adenocarcinoma/secundário , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Cisplatino/administração & dosagem , Esquema de Medicação , Fluoruracila/administração & dosagem , Humanos , Infusões Intravenosas , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/secundário , Masculino , Pessoa de Meia-Idade , Neoplasias Gástricas/patologia
20.
Nihon Igaku Hoshasen Gakkai Zasshi ; 62(5): 224-6, 2002 Apr.
Artigo em Japonês | MEDLINE | ID: mdl-12043228

RESUMO

Intra-arterial infusion chemotherapy using a percutaneously implanted port-catheter system was performed in 21 patients with liver tumors. We developed a new procedure, the gastroepiploic method, using a W Spiral Catheter without embolization around/within the catheter and embolization for the right gastroepiploic artery distal to the catheter tip. After embolizing the gastroduodenal arterial branches, right gastric artery, or aberrant hepatic arteries, we mainly inserted the catheter tip into the right gastroepiploic artery. There were no complications such as peptic ulcer, hepatic artery obstruction, or catheter dislocation (observation time, 5.3 months). This method seemed to be feasible for implantable reservoir therapy of patients with malignant liver tumors.


Assuntos
Cateterismo/métodos , Neoplasias Hepáticas/tratamento farmacológico , Adulto , Idoso , Feminino , Artéria Gastroepiploica , Humanos , Infusões Intra-Arteriais/métodos , Masculino , Pessoa de Meia-Idade
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