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Saito N, Tsuchiya J, Itoga M, Okamura Y, Tsuyama H, Kimura M, Inoue F, Kimura T, Ozaki H, Tono Y, Minakawa S, Tomita H. Multiple Blood Culture Sampling, Proper Antimicrobial Choice, and Adequate Dose in Definitive Therapy Supported by the Antimicrobial Stewardship Team Could Decrease 30-Day Sepsis Mortality Rates. Infect Drug Resist 2024; 17:207-219. [PMID: 38283110 PMCID: PMC10812706 DOI: 10.2147/idr.s445917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/11/2024] [Indexed: 01/30/2024] Open
Abstract
Objective This study aimed to identify factors that should be focused on by the antimicrobial stewardship team for treating patients with sepsis, by investigating the mortality of patients with sepsis within 30 days and the mortality-related factors in our hospital over a 10-year period from the perspective of appropriate antimicrobial use. Methods Factors associated with 30-day mortality were investigated using hierarchical multiple logistic regression in 1406 patients with pathogen-identified sepsis in Hirosaki University Hospital. These factors were clinical data, microbiological data, antimicrobials used in empiric and definitive therapies, presence/absence of ineffective use, underdosing as evaluated using Monte Carlo simulation, and practice of de-escalation. Results The ineffective use of antimicrobials in empiric therapy and the underdosing and ineffective use in definitive therapy were significantly associated with 30-day mortality (odds ratio [OR] = 2.70, 3.72, and 3.65, respectively). Multiple blood culture sampling was inversely associated with these inappropriate antimicrobial uses. Every year, the 30-day mortality rate has been decreasing, in line with the increase in multiple blood culture sampling and de-escalation; the inappropriate use of antimicrobials has also decreased. Conclusion Multiple blood culture sampling, proper choice of antimicrobial, and using an adequate dose in definitive therapy could decrease the 30-day mortality rate in patients with sepsis and these factors could be supported by the antimicrobial stewardship team.
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Affiliation(s)
- Norihiro Saito
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Department of Clinical Laboratory Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
- Division of Clinical Laboratory, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Junichiro Tsuchiya
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Division of Clinical Laboratory, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Masamichi Itoga
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Department of Clinical Laboratory Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Yuji Okamura
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Division of Pharmacy, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Hiromasa Tsuyama
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Division of Pharmacy, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Masahiko Kimura
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Division of Clinical Laboratory, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Fumio Inoue
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Division of Clinical Laboratory, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Toshiyuki Kimura
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Hiromi Ozaki
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Yuka Tono
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Division of Pharmacy, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Satoko Minakawa
- Division of Infection Control and Prevention, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Division of Clinical Laboratory, Hirosaki University Hospital, Hirosaki, Aomori, Japan
| | - Hirofumi Tomita
- Department of Clinical Laboratory Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
- Division of Clinical Laboratory, Hirosaki University Hospital, Hirosaki, Aomori, Japan
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
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Tsuyama H, Fujishiro H, Himeno S, Sumi D. Arsenite suppresses NO production evoked by lipopolysaccharide and poly(I:C) via the suppression of interferon-β expression in RAW264.7 cells. J Toxicol Sci 2019; 44:83-92. [PMID: 30726814 DOI: 10.2131/jts.44.83] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Immunological functions are disturbed in humans who have been chronically exposed to arsenic via contaminated groundwater. Little is known about the specific mechanisms underlying the impairment of immunological defense system caused by arsenic. The activation of macrophage cells upon infection with bacteria and viruses plays important roles in the defense against these pathogens. Here we show that exposure to arsenite (As(III)) suppresses nitric oxide (NO) production in murine RAW264.7 macrophage cells stimulated with lipopolysaccharide (LPS) and poly(I:C), the compounds mimicking bacterial and viral infection, respectively. As(III) suppressed the LPS- or poly(I:C)-evoked induction of inducible NO synthase (iNOS) without affecting the transactivation of NF-κB. As the interferon (IFN)-β/STAT1 pathway is also involved in the induction of iNOS in addition to NF-κB, we examined the effects of As(III) on the expression and secretion of IFN-β, the expression of the components of IFN-α/β receptor, the phosphorylation of STAT1, and the levels of cytokines involved in STAT1 activation. The results showed that the expression and secretion of IFN-β were specifically suppressed by As(III) treatment in RAW264.7 cells stimulated with LPS or poly(I:C). These results suggest that As(III) suppresses the expression and secretion of IFN-β, leading to the reduced STAT1 activation and consequently the reduced iNOS induction in macrophage cells. Our data suggest an important role of the arsenic-induced suppression of IFN-β on the disturbances in immunological defense against both bacteria and viruses.
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Affiliation(s)
- Hiromasa Tsuyama
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Hitomi Fujishiro
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Seiichiro Himeno
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Daigo Sumi
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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Noguchi M, Yagasaki R, Kawahara F, Minami M, Tsuyama H, Earashi M, Kinoshita K, Taniya T, Miwa K, Nishijima H, Takanaka T, Kawashima H, Takashima C, Kanno M, Nakamura S, Mizukami Y, Nonomura A, Michigishi T, Yokoyama K. Breast conserving treatment versus modified radical mastectomy in Japanese patients with operable breast cancer. Int Surg 1997; 82:289-94. [PMID: 9372377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
From January, 1988 to October, 1995, 96 patients with operable breast cancer were treated by breast conserving treatment (BCT) including wide excision and axillary dissection followed by breast radiation. During the same period, 188 patients were treated by modified radical mastectomy (MRM) with or without breast reconstruction. In order to compare the survival of BCT and MRM groups, univariate and multivariate analyses were performed in this retrospective study. Univariate analysis revealed that the 5-year survival rates in the BCT and MRM groups were 97% +/- 2% and 87% +/- 3%, respectively (p < 0.05 with the Cox-Mantel test). However, the baseline variables were different between the groups. The adjusted Cox regression analysis revealed that the results of BCT were almost equivalent with those of MRM. Moreover, no breast recurrence was found in the BCT group. Therefore, it is suggested that our technique of BCT is as effective as modified radical mastectomy in treating operable breast cancer in Japanese patients.
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Affiliation(s)
- M Noguchi
- Department of Surgery II, Kanazawa University Hospital, Japan
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