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1.
Artigo em Inglês | MEDLINE | ID: mdl-38984673

RESUMO

BACKGROUND: Debulking devices are often followed by a scoring or cutting balloon in percutaneous coronary intervention (PCI) for severely calcified lesions. However, there are limited data on balloon preparation after orbital atherectomy (OA) assessed using optical coherence tomography (OCT). AIM: We aimed to compare the effects of a novel scoring and cutting balloon on calcified coronary lesions with OCT. METHODS: We retrospectively examined 38 patients (38 lesions) who underwent PCI with a scoring or a cutting balloon after OA. All patients underwent pre-PCI, preballooning, postballooning, and post-PCI OCT imaging. We divided the patients into novel scoring-balloon (group A: n = 22) and cutting-balloon (group B: n = 16) groups and compared the OCT findings, including minimum lumen area (MLA) and expansion ratio (MLA divided by mean reference lumen area). RESULTS: The mean patient age was 76.1 ± 8.7 years; 71.5% were male. There were no significant differences in patient background between both groups. Regarding procedural characteristics, the maximum balloon pressure was significantly higher in group A (median 23 atm, interquartile range [IQR] 18-24 vs. 12 atm [IQR: 10-12], p < 0.01). Although a calcium score of 4 was more frequently observed in group A (86.4% vs. 62.5%, p = 0.12), post-PCI MLA was comparable between both groups (3.95 mm2 [IQR: 3.27-4.41] vs. 3.43 mm2 [IQR: 2.90-4.82], p = 0.63). Furthermore, the expansion ratio was significantly greater in group A (0.83 ± 0.20 vs. 0.68 ± 0.14, p < 0.01). CONCLUSION: Despite a higher calcium score, a larger expansion ratio was achieved in patients with a novel scoring balloon than in those with a cutting balloon after OA.

2.
EuroIntervention ; 20(13): e818-e825, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38949242

RESUMO

BACKGROUND: There are limited data about determinant factors of target lesion failure (TLF) in lesions after percutaneous coronary intervention (PCI) using a drug-coated balloon (DCB) for de novo coronary artery lesions, including optical coherence tomography (OCT) findings. AIMS: The present study aims to investigate the associated factors of TLF in de novo coronary artery lesions with DCB treatment. METHODS: We retrospectively enrolled 328 de novo coronary artery lesions in 328 patients who had undergone PCI with a DCB. All lesions had been treated without a stent, and both pre- and post-PCI OCT had been carried out. Patients were divided into two groups, with or without TLF, which was defined as a composite of culprit lesion-related cardiac death, myocardial infarction, and target lesion revascularisation, and the associated factors of TLF were assessed. RESULTS: At the median follow-up period of 460 days, TLF events occurred in 31 patients (9.5%) and were associated with patients requiring haemodialysis (HD; 29.0% vs 10.8%), with a severely calcified lesion (median maximum calcium arc 215° vs 104°), and with the absence of OCT medial dissection (16.1% vs 60.9%) as opposed to those without TLF events. In Cox multivariable logistic regression analysis, HD (hazard ratio [HR]: 2.26, 95% confidence interval [CI]: 1.00-5.11; p=0.049), maximum calcium arc (per 90°, HR: 1.34, 95% CI: 1.05-1.72; p=0.02), and the absence of post-PCI medial dissection on OCT (HR: 8.24, 95% CI: 3.15-21.6; p<0.001) were independently associated with TLF. CONCLUSIONS: In de novo coronary artery lesions that received DCB treatment, factors associated with TLF were being on HD, the presence of a severely calcified lesion, and the absence of post-PCI medial dissection.


Assuntos
Doença da Artéria Coronariana , Intervenção Coronária Percutânea , Tomografia de Coerência Óptica , Humanos , Masculino , Feminino , Idoso , Pessoa de Meia-Idade , Doença da Artéria Coronariana/terapia , Doença da Artéria Coronariana/diagnóstico por imagem , Estudos Retrospectivos , Intervenção Coronária Percutânea/efeitos adversos , Intervenção Coronária Percutânea/instrumentação , Intervenção Coronária Percutânea/métodos , Angioplastia Coronária com Balão/instrumentação , Angioplastia Coronária com Balão/efeitos adversos , Angioplastia Coronária com Balão/métodos , Fatores de Risco , Resultado do Tratamento , Vasos Coronários/diagnóstico por imagem , Stents Farmacológicos , Infarto do Miocárdio/etiologia
3.
Sci Rep ; 14(1): 11488, 2024 05 20.
Artigo em Inglês | MEDLINE | ID: mdl-38769120

RESUMO

Patients on haemodialysis (HD) have high mortality risk, and prognostic values of the major cardiovascular biomarkers cardiac troponin I (cTnI), N-terminal pro-brain natriuretic peptide (NT-proBNP), and adiponectin should be ascertained over longer follow-up periods using higher-sensitivity assays, which we undertook. In 221 HD patients, levels of high-sensitivity (hs)-cTnI, NT-proBNP, and adiponectin, were measured using high-sensitivity assays, and their associations with all-cause mortality (ACM) and cardiovascular mortality (CVM) were prospectively investigated for 7 years. Higher hs-cTnI and NT-proBNP levels were significant risk factors for ACM and CVM in the Kaplan-Meier analysis. Multivariate Cox proportional hazards analyses in a model including hs-cTnI and NT-proBNP identified log hs-cTnI, but not log NT-proBNP, as an independent risk factor for ACM (HR 2.12, P < 0.02) and CVM (HR 4.48, P < 0.0005). Stepwise analyses identified a high hs-cTnI tertile as a risk factor for ACM (HR 2.31, P < 0.01) and CVM (HR 6.70, P < 0.001). The addition of hs-cTnI to a model including age, CRP, DM, and NT-proBNP significantly improved the discrimination of ACM and CVM each over 7 years. Conclusively, hs-cTnI was superior to NT-proBNP and adiponectin in predicting ACM and CVM over 7 years in HD patients, suggesting the significance of baseline hs-cTnI measurements in long-term management.


Assuntos
Adiponectina , Biomarcadores , Peptídeo Natriurético Encefálico , Fragmentos de Peptídeos , Diálise Renal , Troponina I , Humanos , Adiponectina/sangue , Troponina I/sangue , Peptídeo Natriurético Encefálico/sangue , Diálise Renal/mortalidade , Masculino , Feminino , Fragmentos de Peptídeos/sangue , Idoso , Pessoa de Meia-Idade , Biomarcadores/sangue , Fatores de Risco , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/sangue , Prognóstico , Estudos Prospectivos , Estimativa de Kaplan-Meier , Modelos de Riscos Proporcionais
5.
Catheter Cardiovasc Interv ; 102(1): 11-17, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37210618

RESUMO

BACKGROUND: Percutaneous coronary intervention (PCI) for calcified coronary artery remains challenging in the drug-eluting stent (DES) era. While recent studies reported the efficacy of orbital atherectomy (OA) combined with DES for calcified lesion, the effectiveness of drug-coated balloon (DCB) following OA has not been fully elucidated. METHODS: Between June 2018 and June 2021, 135 patients who received PCI for calcified de novo coronary lesions with OA were enrolled and divided into two groups; OA followed by DCB (n = 43) if the target lesion achieved acceptable preparation, or second- or third-generation DESs (n = 92) if the target lesion showed suboptimal preparation between June 2018 and June 2021. All patients underwent PCI with optical coherence tomography (OCT) imaging. The primary endpoint was 1-year major adverse cardiac event (MACE), that was a composite of cardiac death, nonfatal myocardial infarction, or target lesion revascularization. RESULTS: Mean age was 73 years and 82% was male. In OCT analysis, maximum calcium plaque was thicker (median: 1050 µm [interquartile range (IQR): 945-1175 µm] vs. 960 µm [808-1100 µm], p = 0.017), calcification arc tended to larger (median: 265° [IQR: 209-360°] vs. 222° [162-305°], p = 0.058) in patients with DCB than in DES, and the postprocedure minimum lumen area was smaller in DCB compared with minimum stent area in DES (median: 3.83 mm2 [IQR: 3.30-4.52 mm2 ] vs. 4.86 mm2 [4.05-5.82 mm2 ], p < 0.001). However, 1 year MACE free rate was not significantly different between 2 groups (90.3% in DCB vs. 96.6% in DES, log-rank p = 0.136). In the subgroup analysis of 14 patients who underwent follow-up OCT imaging, late lumen area loss was lower in patients with DCB than DES, despite lower lesion expansion rate in DCB than DES. CONCLUSIONS: In calcified coronary artery disease, DCB alone strategy (if acceptable lesion preparation was performed with OA) was feasible compared with DES following OA with respect to 1-year clinical outcomes. Our finding indicated using DCB with OA might be reduce late lumen area loss for severe calcified lesion.


Assuntos
Aterectomia Coronária , Doença da Artéria Coronariana , Stents Farmacológicos , Intervenção Coronária Percutânea , Humanos , Masculino , Idoso , Intervenção Coronária Percutânea/efeitos adversos , Tomografia de Coerência Óptica , Vasos Coronários/diagnóstico por imagem , Vasos Coronários/cirurgia , Resultado do Tratamento , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/terapia , Doença da Artéria Coronariana/etiologia , Aterectomia , Aterectomia Coronária/efeitos adversos
6.
Int J Cardiovasc Imaging ; 39(7): 1367-1374, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37027104

RESUMO

PURPOSE: The association between the extent of the wire and device bias as assessed by optical coherence tomography (OCT) in the healthy portion of the vessel and the risk of coronary artery injury after orbital atherectomy (OA) has not been fully elucidated. Thus, purpose of this study is to investigate the association between pre-OA OCT findings and post-OA coronary artery injury by OCT. METHODS: We enrolled 148 de novo lesions having calcified lesion required OA (max Ca angle > 90°) in 135 patients who underwent both pre- and post-OA OCT. In pre-OA OCT, OCT catheter contact angle and the presence or absences of guide-wire (GW) contact with the normal vessel intima were assessed. Also, in post-OA OCT, we assessed there was post-OA coronary artery injury (OA injury), defined as disappearance of both of intima and medial wall of normal vessel, or not. RESULTS: OA injury was found in 19 lesions (13%). Pre-PCI OCT catheter contact angle with the normal coronary artery was significantly larger (median 137°; inter quartile range [IQR] 113-169 vs. median 0°; IQR 0-0, P < 0.001) and more GW contact with the normal vessel was found (63% vs. 8%, P < 0.001). Pre-PCI OCT catheter contact angle > 92° and GW contact with the normal vessel intima were associated with post-OA vascular injury (Both: 92% (11/12), Either: 32% (8/25), Neither: 0% (0/111), P < 0.001). CONCLUSION: Pre-PCI OCT findings, such as catheter contact angle > 92° and guide-wire contact to the normal coronary artery, were associated with post-OA coronary artery injury.


Assuntos
Aterectomia Coronária , Doença da Artéria Coronariana , Intervenção Coronária Percutânea , Calcificação Vascular , Lesões do Sistema Vascular , Humanos , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/terapia , Doença da Artéria Coronariana/patologia , Aterectomia Coronária/efeitos adversos , Vasos Coronários/diagnóstico por imagem , Vasos Coronários/patologia , Intervenção Coronária Percutânea/efeitos adversos , Lesões do Sistema Vascular/diagnóstico por imagem , Lesões do Sistema Vascular/etiologia , Lesões do Sistema Vascular/patologia , Tomografia de Coerência Óptica/métodos , Resultado do Tratamento , Valor Preditivo dos Testes , Aterectomia , Calcificação Vascular/diagnóstico por imagem , Calcificação Vascular/terapia , Calcificação Vascular/patologia , Angiografia Coronária
8.
Ren Replace Ther ; 9(1): 13, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36846515

RESUMO

Background: Hemodialysis patients are more likely to be severely affected if infected by COVID-19. Contributing factors include chronic kidney disease, old age, hypertension, type 2 diabetes, heart disease, and cerebrovascular disease. Therefore, action against COVID-19 for hemodialysis patients is an urgent issue. Vaccines are effective in preventing COVID 19 infection. In hemodialysis patients, however, responses to hepatitis B and influenza vaccines are reportedly weak. The BNT162b2 vaccine has shown an efficacy rate of about 95% in the general population, but as far as we know there are only several reports of efficacy data in hemodialysis patients in Japan. Methods: We assessed serum anti-SARS-CoV-2 IgG antibody (Abbott SARS-CoV-2 IgG II Quan) in 185 hemodialysis patients and 109 health care workers. The exclusion criterion was positivity for SARS-CoV-2 IgG antibody before vaccination. Adverse reactions to BNT162b2 vaccine were evaluated through interviews. Results: Following vaccination, 97.6% of the hemodialysis group and 100% of the control group were positive for the anti-spike antibody. The median level of anti-spike antibody was 2,728.7 AU/mL (IQR, 1,024.2-7,688.2 AU/mL) in the hemodialysis group and 10,500 AU/ml (IQR, 9,346.1-2,4500 AU/mL) in the health care workers group. The factors involved in the low response to the BNT152b2 vaccine included old age, low BMI, low Cr index, low nPCR, low GNRI, low lymphocyte count, steroid administration, and complications related to blood disorders. Conclusions: Humoral responses to BNT162b2 vaccine in hemodialysis patients are weaker than in a healthy control sample. Booster vaccination is necessary for hemodialysis patients, especially those showing a weak or non-response to the two-dose BNT162b2 vaccine.Trial registration UMIN, UMIN000047032. Registered 28 February 2022, https://center6.umin.ac.jp/cgi-bin/ctr/ctr_reg_rec.cgi.

9.
Heart Vessels ; 38(4): 488-496, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36322238

RESUMO

The incidence of lower extremity artery disease (LEAD) in patient receiving hemodialysis is remarkably higher than the general population. The treatment strategy and prognosis for LEAD patients differs depending on whether a patient has intermittent claudication (IC) or critical limb-threatening ischemia (CLTI). However, the distinction between the prognosis in HD-dependent patients with IC and CLTI has not been fully elucidated. This study is to determine whether indication of PAD has a distinct impact on major adverse cardiovascular and cerebrovascular events (MACCE) and limb events in patients receiving hemodialysis. The current study included 2321 prospectively enrolled patients from the Tokyo taMA peripheral vascular intervention research ComraDE registry (UMIN-CTR no. UMIN000015100) between September 2014 and December 2016. Out of the enrolled patients, 1644 were not receiving hemodialysis (non-HD patients) and 603 were receiving hemodialysis (HD patients). A composite of all-cause death, myocardial infarction, and stroke events defined as MACCE; while limb events were defined as a composite of unscheduled major amputation, unscheduled major lower limb surgery, acute limb ischemia, unscheduled endovascular treatment, and target lesion revascularization. Propensity score matching was applied among the non-HD and HD patients, in whole group, IC subgroup, and CLTI subgroup. Kaplan-Meier analysis was used for the analysis of outcomes for the whole group, IC subgroup, and the CLTI subgroup. CLTI accounted for 75.5% of the HD patients, whereas IC was 63.4% in the non-HD patients. The HD patients exhibited more frequent below-the-knee lesions than those in the non-HD patients in both IC (p = 0.01) and CLTI (p < 0.001) subgroups. Overall, HD patients exhibited a significantly higher rate of MACCE at 24 months. This trend was similar for limb events in whole group and CLTI subgroup. In contrast, no significant differences in outcomes for limb events were found in IC subgroup. Although, prognosis after EVT in HD patients were significantly worse than non-HD patients, comparable outcome with non-HD patients was observed in the patients treated for IC. Clinical trial registration: This study was registered in the University Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR No. UMIN000015100).


Assuntos
Procedimentos Endovasculares , Doença Arterial Periférica , Humanos , Isquemia Crônica Crítica de Membro , Procedimentos Endovasculares/efeitos adversos , Claudicação Intermitente , Extremidade Inferior/irrigação sanguínea , Doença Arterial Periférica/cirurgia , Diálise Renal , Fatores de Risco , Resultado do Tratamento
10.
JGH Open ; 6(11): 774-781, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36406650

RESUMO

Aims: Portopulmonary hypertension (PoPH) is a subtype of pulmonary arterial hypertension related to portal hypertension. The definitive diagnosis of PoPH is made by invasive right heart catheterization. Alternatively, pulmonary arterial hypertension may be recognized noninvasively from the tricuspid regurgitant pressure gradient (TRPG), measured by echocardiography. In this study, we aimed to establish a simple algorithm to identify chronic liver disease patients with a high TRPG value in order to narrow down the candidates to receive echocardiography. Methods and Results: TRPG was measured by echocardiography in 152 patients with chronic liver disease. Factors predictive of TRPG >30 mmHg were investigated. There were 28 (18%) cases with TRPG >30 mmHg. Independent factors associated with a high TRPG were the presence of shortness of breath, high serum brain natriuretic peptide (BNP), and low serum albumin. Child-Pugh class or the presence of ascites, varices, or encephalopathy was not associated with TRPG. There was a correlation between the serum BNP and TRPG, and the optimal cutoff value of BNP by the Youden index was 122 pg/mL, and by 100% sensitivity was 50 pg/mL. A combination of these factors identified patients with a high probability of TRPG >30 mmHg (n = 12, positive predictive value [PPV] of 83%), no probability (n = 80, PPV 0%), and intermediate probability (n = 60, PPV 25-34%). This algorithm has reduced the number of patients needing echocardiography by 53%. Conclusions: A simple algorithm using the presence of shortness of breath, serum BNP, and albumin levels can narrow down the candidates to receive echocardiography.

11.
BMC Nephrol ; 23(1): 204, 2022 06 11.
Artigo em Inglês | MEDLINE | ID: mdl-35690711

RESUMO

BACKGROUND: For the optimal management of patients with both allograft kidneys and native kidney diseases, the recognition of the histological features associated with older age is important. This is because most pathological findings are non-specific. Central fibrous areas (CFAs) have recently been proposed to be age-related. However, the components of CFAs and whether CFAs are observed in various kidney diseases remain undetermined. This cross-sectional study was undertaken to clarify the histological features, epidemiology, and clinicopathological features of CFAs. METHODS: One hundred and one consecutive kidney needle biopsy specimens were retrospectively collected from seven facilities in the Hokuriku region and diagnosed at the Kanazawa University Hospital in 2015. First, the components of CFAs were analyzed using normal histostaining, immunostaining, and electron microscopy. Second, the patients were divided into two groups (CFA [+] or CFA [-]) according to the presence of CFA in the obtained samples. Clinical and histological features were compared between the two groups, and factors associated with CFA formation were determined using univariate and multivariate analyses. The number of CFAs per specimen was counted in the CFA (+) group. Third, the presence of myofibroblasts in CFA was examined by immunostaining. RESULTS: CFAs were observed in 56 of 101 patients (55.4%) with various kidney diseases. CFAs consist of fibrillar collagens (collagen I and III) in addition to non-fibrillar collagens (collagen IV and VI), as confirmed by electron microscopy. Clinically, the CFA (+) group was older and had a significantly higher prevalence of hypertension and hyperlipidemia than the CFA (-) group. Histologically, elastofibrosis of the interlobular artery, arteriolar hyalinosis, and membranous nephropathy were significantly more evident in the CFA (+) group than in the CFA (-) group. Multivariate analysis revealed that older age was the sole factor associated with CFA formation. Finally, 27 of 58 (46.6%) CFA-containing glomeruli in 26 cases included alpha-smooth muscle actin-positive cells in or adjacent to the CFA. CONCLUSIONS: CFAs consist of fibrous collagens in addition to matrix collagens. CFA formation is associated with older age and was observed in various kidney diseases.


Assuntos
Nefropatias , Glomérulos Renais , Colágeno Tipo IV , Estudos Transversais , Fibrose , Humanos , Estudos Retrospectivos
12.
Front Cardiovasc Med ; 9: 844626, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35571222

RESUMO

Acute myocarditis is a rare but serious complication associated with mRNA-based coronavirus disease 2019 (COVID-19) vaccination. In this article, four COVID-19 mRNA vaccination induced myocarditis cases managed at our tertiary Medical Center have been discussed. Three patients had typical myocarditis. One patient suffered from atrioventricular block and heart failure, which required more intensive treatment, but eventually improved. Additionally, a review of cardiac magnetic resonance imaging (MRI) features related to the diagnosis of myocarditis showed that COVID-19 mRNA vaccine-associated myocarditis tend to have more late-gadolinium enhancement (LGE) accumulation in the inferior lateral wall direction. According to a report by the U.S. Centers for Disease Control and Prevention (CDC), the diagnosis of COVID-19 mRNA vaccine-associated myocarditis is based on clinical symptoms, altered myocardial enzymes, cardiac MRI finding, or histopathology. Cardiac MRI is relatively less invasive than myocardial biopsy and plays an important role in the diagnosis of myocarditis. This review may aid in the diagnosis of COVID-19 mRNA vaccine-associated myocarditis.

13.
BMC Nephrol ; 23(1): 168, 2022 05 02.
Artigo em Inglês | MEDLINE | ID: mdl-35501824

RESUMO

BACKGROUND: Sodium-glucose cotransporter 2 (SGLT2) inhibitors have been shown to exert cardiorenal protective effects in diabetic patients and are widely used clinically. In addition, an increasing number of reports now suggest these drugs may even be beneficial in non-diabetic patients. However, SGLT2 inhibitors are rarely prescribed for kidney transplant recipients due to the risk of renal graft damage and urogenital infections. CASE PRESENTATION: We report the cases of 5 renal transplant recipients with chronic kidney disease G3a-4 and metabolic syndrome who were administered the SGLT2 inhibitor empagliflozin, which yielded beneficial results in 4 cases. With the exception of one patient with an initial estimated glomerular filtration rate (eGFR) of less than 30 ml/min/1.73 m2, administration of empagliflozin elicited beneficial metabolic effects. There were no significant reductions in eGFR before or after empagliflozin administration, and no dehydration or urogenital infections were observed during the treatment course. CONCLUSION: Empagliflozin showed some positive effects in 4 cases with better renal function than CKD stage 4. Further studies will be required to clarify the efficacy and safety of SGLT2 inhibitors in a larger group of patients with similar medical conditions.


Assuntos
Diabetes Mellitus Tipo 2 , Transplante de Rim , Síndrome Metabólica , Insuficiência Renal Crônica , Inibidores do Transportador 2 de Sódio-Glicose , Compostos Benzidrílicos , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Feminino , Glucosídeos , Humanos , Japão , Masculino , Síndrome Metabólica/induzido quimicamente , Síndrome Metabólica/tratamento farmacológico , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/tratamento farmacológico , Insuficiência Renal Crônica/cirurgia , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico
16.
Intern Med ; 61(10): 1599-1602, 2022 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-34707043

RESUMO

A 70-year-old woman undergoing glucocorticoid therapy for cardiac sarcoidosis was brought to our hospital with the sudden onset of right hemiplegia and aphasia. Brain magnetic resonance imaging showed a high diffusion-weighted imaging signal in the left frontotemporal lobe and disruption of blood flow in the M1 segment of the left middle cerebral artery. Hence, she underwent thrombolysis and mechanical thrombectomy, resulting in marked improvement in her neurological symptoms. A pathologic evaluation of the thrombus suggested its cardiogenicity, and the absence of any obvious abnormality other than a left ventricular aneurysm indicated stroke due to a cardioembolic etiology secondary to cardiac sarcoidosis.


Assuntos
AVC Embólico , Sarcoidose , Acidente Vascular Cerebral , Trombose , Idoso , Imagem de Difusão por Ressonância Magnética , Feminino , Humanos , Sarcoidose/diagnóstico , Sarcoidose/diagnóstico por imagem , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/etiologia , Trombectomia/métodos , Trombose/complicações , Trombose/diagnóstico por imagem
17.
Circ J ; 86(6): 923-933, 2022 05 25.
Artigo em Inglês | MEDLINE | ID: mdl-34645732

RESUMO

BACKGROUND: The efficacy of direct oral anticoagulants (DOACs) compared with warfarin for the treatment of venous thromboembolism (VTE), and the recurrence of VTE after discontinuation of anticoagulation therapy in research are limited.Methods and Results: This retrospective study enrolled 893 patients with acute VTE between 2011 and 2019. The cohort was divided into the transient risk, unprovoked, continued cancer treatment, and cancer remission groups. The following were compared between DOACs and warfarin: composite outcome of all-cause death, VTE recurrence, bleeding and composite outcome of VTE-related death, recurrence and bleeding. In the continued cancer treatment group, more bleeding was seen in warfarin-treated patients than in patients treated with DOACs (53.2% vs. 31.2%, [P=0.048]). In addition, composite outcome of VTE-related death and recurrence after discontinuation of anticoagulation therapy (n=369) was evaluated. The continued cancer treatment group (multivariate analysis: HR: 3.62, 95% CI: 1.84-7.12, P<0.005) and bleeding-related discontinuation of therapy (HR: 2.60, 95% CI: 1.32-5.13, P=0.006) were independent predictors of the event after discontinuation of anticoagulation therapy. VTE recurrence after discontinuation of anticoagulation therapy in the cancer remission group was 1.6% and a statistically similar occurrence was found in the transient risk group (12.4%) (P=0.754). CONCLUSIONS: DOACs may decrease bleeding incidence in patients continuing to receive cancer treatment. In patients with bleeding-related discontinuation of anticoagulation therapy, VTE recurrence may increase. Discontinuation of anticoagulant therapy might be a treatment option in patients who have completed their cancer treatment.


Assuntos
Tromboembolia Venosa , Trombose Venosa , Administração Oral , Anticoagulantes/uso terapêutico , Hemorragia/induzido quimicamente , Humanos , Recidiva , Estudos Retrospectivos , Tromboembolia Venosa/tratamento farmacológico , Tromboembolia Venosa/epidemiologia , Trombose Venosa/tratamento farmacológico , Varfarina/uso terapêutico
18.
Access Microbiol ; 4(11): acmi000437, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36644435

RESUMO

There are limited reports of patients with prosthetic valve infective endocarditis (IE) or recurrent IE due to highly beta-lactam-resistant viridans group streptococci. We present a case in which a patient with native valve IE due to beta-lactam-susceptible Streptococcus oralis developed prosthetic valve IE due to highly beta-lactam-resistant S. oralis . A 79-year-old man with a history of native aortic valve IE caused by beta-lactam-susceptible S. oralis 21 months prior to admission and aortic valve replacement was admitted to our hospital with a 2-week history of general malaise and low-grade fever. Transesophageal echocardiography showed a 20 mm vegetation on the prosthetic aortic valve, and emergency cardiovascular surgery was performed on admission day 2. Three sets of blood cultures on admission were positive for highly beta-lactam-resistant S. oralis . Vancomycin and cefazolin were administered as initial treatment. After the surgery, the patient was given vancomycin and gentamicin for 2 weeks, followed by vancomycin for 4 weeks. He was relapse-free at the 6-month follow-up. For patients with native valve IE due to S. oralis who have undergone valve replacement more than 1 year earlier, given the possibility of methicillin-resistant Staphylococcus aureus as well as S. oralis resistance to beta-lactams, it may be advisable to start vancomycin as an initial treatment and continue it until the infecting micro-organism has been proven to be susceptible to beta-lactams.

19.
PLoS One ; 16(11): e0259750, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34739524

RESUMO

BACKGROUND: Although long sinus arrest is occasionally observed during atrial fibrillation (AF) catheter ablation when the fibrillation was terminated, its meaning and prognosis have not yet been clearly elucidated. We hypothesized that sinus node recovery time (SNRT) after termination of AF (time from termination of AF to the earliest sinus node activation) could reflect the extent of atrial remodeling, influencing the formation of non-pulmonary vein (non-PV) triggers and post-ablation outcomes. METHOD: The participants were 157 consecutive patients with persistent AF (male: 77.1%, age: 63.3±11.2 years) who underwent catheter ablation. We recorded SNRT after terminating AF by radiofrequency delivery or electrical cardioversion during the first ablation and evaluated the relationships between SNRT and atrial tachyarrhythmia recurrence and between SNRT and non-PV triggers after repeat ablation. RESULTS: Forty-five patients (28.7%) experienced recurrence of atrial tachyarrhythmias. Patients with recurrence had longer SNRTs (1738 ms vs. 1394 ms, p = 0.012). In the multivariate logistic regression analysis, only SNRT ≥2128ms was a significant independent predictor of clinical AF recurrence (hazard ratio 7.48; 95% confidence interval 2.94-19.00; P<0.001). Kaplan-Meier estimator showed that the recurrence-free rate was significantly lower if ≥ 2128ms (log-rank, p<0.001). Thirty-five patients (77.8%) underwent a second ablation. Although there was no difference in the rate of pulmonary vein reconnections (78.6% vs. 71.4%, p = 0.712), non-PV triggers were observed more frequently in the longer SNRT group (57.1% vs. 14.3%, p = 0.012). CONCLUSIONS: Patients with a prolonged SNRT had a higher prevalence of AF recurrence after the first ablation and higher inducibility of non-PV triggers. Measuring SNRT might be used for the stratification of patients with persistent AF.


Assuntos
Fibrilação Atrial , Idoso , Remodelamento Atrial , Ablação por Cateter , Humanos , Pessoa de Meia-Idade
20.
J Infect Chemother ; 27(10): 1513-1516, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34049794

RESUMO

Mycotic aneurysms are sometimes seen in patients with infective endocarditis. We report a case of infective endocarditis with multiple mycotic aneurysms. Although antibiotics were effective, mycotic aneurysms appeared in the cerebral, hepatic, and gastroepiploic arteries. A 55-year-old man presented with mitral valve endocarditis due to Streptococcus oralis. Surgical treatment was deferred because of cerebral hemorrhage. After antibiotic initiation, his fever and C-reactive protein levels declined, and blood culture was negative. However, he experienced repeated cerebral hemorrhage and the number of cerebral mycotic aneurysms increased. Additionally, his spleen ruptured and the number of mycotic aneurysms in the hepatic and gastroepiploic arteries increased. After embolization for mycotic aneurysm and mitral valve replacement, no mycotic aneurysms appeared. Regardless of whether laboratory data improve or not, multiple mycotic aneurysms sometimes appear, and cardiac surgery for infection control should be considered in the early phase.


Assuntos
Aneurisma Infectado , Endocardite Bacteriana , Endocardite , Aneurisma Intracraniano , Endocardite/complicações , Endocardite/tratamento farmacológico , Endocardite Bacteriana/tratamento farmacológico , Humanos , Aneurisma Intracraniano/complicações , Masculino , Pessoa de Meia-Idade
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