1.The Comparison Survey between TDM Guideline and TDM Analysis Software Related to Setting the Initial Dose of Vancomycin Aimed to Utilize the TDM Guideline
Makoto Nakashima ; Yuka Nakakihara ; Takeshi Takahashi ; Hiroshi Nomaguchi ; Morihiko Terashi ; Hideki Hayashi ; Tadashi Sugiyama
Japanese Journal of Drug Informatics 2016;18(1):13-21
Objective: We have used therapeutic drug monitoring (TDM) analysis software to set the initial dose of vancomycin in our hospital. In contrast, the TDM guideline, in which the initial dose of vancomycin per body weight was set, was published in 2012. We looked forward with utilizing the TDM guideline in the clinical setting, after which we conducted multiple surveys to determine the important points of the TDM guideline.
Methods: We surveyed patients treated with vancomycin, in whom the initial dose was set using the TDM analysis software and the concordance rate between the vancomycin dose set with the software and that set with the TDM guideline.
Results: The concordance rate of vancomycin dose was 42.1%. The mean age of the high-dose group (vancomycin dose higher than that recommended by the TDM guideline), was younger than that of the recommended-dose group. Additionally, the mean body weight of the high-dose group was significantly lower than that of the recommended-dose group. The corrected creatinine clearance of the low-dose group was significantly lower than that of the recommended-dose group.
Conclusion: Our results suggest that when the initial dose is set after referring the TDM guideline in patients who are not very high age, and having low body weight and decreased renal function, the dose may differ from the dose set by using TDM analysis software. In addition, since the recommended dose per body weight is a range and not a single value, setting the dose appropriate to target trough concentration is necessary.
2.A Case of Endovascular Stent Graft Placement for a Proximal Anastomotic Aneurysm after Abdominal Aortic Aneurysm Surgery
Munehiro Saiki ; Hideki Nakashima ; Tohru Hiroe ; Yoshinobu Nakamura ; Naruto Matsuda ; Yasushi Kanaoka ; Shingo Ishiguro ; Shigetsugu Ohgi
Japanese Journal of Cardiovascular Surgery 2005;34(6):406-408
A 77-year-old man was hospitalized for a proximal anastomotic aneurysm 9 years after surgery for an abdominal aortic aneurysm. The aneurysm was located 3cm distal to the renal artery. The maximum diameter was 55mm. His medical history included a reoperation for the proximal anastomotic aneurysm and cerebral infarction. Endovascular stent grafting was performed because it was possible anatomically. Postoperatively, no endoleak nor migration were found. At present, the patient is being followed up regularly in the outpatient department. Endovascular stent graft placement can be an effective method for reoperation cases of an abdominal aortic aneurysm, and if it is possible anatomically, it should be attempted.
3.A Case of Ischemic Cardiomyopathy and Left Bundle-Branch Block Surgically Treated with Coronary Artery Bypass Grafting, Therapeutic Angiogenesis and Biventricular Pacing
Naruto Matsuda ; Hideki Nakashima ; Akira Marumoto ; Yoshinobu Nakamura ; Satoshi Kamihira ; Yasushi Kanaoka ; Shingo Ishiguro ; Shigetsugu Ohgi
Japanese Journal of Cardiovascular Surgery 2005;34(6):435-439
A 67-year-old man was referred to our department for surgical treatment of ischemic cardiomyopathy. Chest X-ray showed cardiomegaly with a cardiothoracic ratio of 62% and pulmonary congestion. CAG revealed multiple obstructive lesions in the left coronary artery system. LVG and UCG showed ventricular dilatation and dysfunction. ECG showed complete left bundle branch block with a QRS duration of 180ms. He underwent autologous bone marrow cell implantation and biventricular pacing concomitant with coronary artery bypass grafting. He is doing well after 15 months without any complications. Combination with therapeutic angiogenesis and cardiac resynchronization therapy may contribute to the development of new regenerative strategy for patients with severe ischemic cardiomyopathy.
4.Invention of Check Points Used in Pharmaceutical Management in Hospital Ward Utilizing PREAVOID
Makoto Nakashima ; Yoshihiro Yamamoto ; Akira Takahashi ; Takuya Goto ; Mie Kominami ; Tomomi Konishi ; Yukiko Shibata ; Hideki Hayashi ; Tadashi Sugiyama
Japanese Journal of Drug Informatics 2015;17(3):155-163
PREAVOID is pharmaceutical intervention that is utilized to illustrate pharmacists’ contributions to medical care. Currently, there is a great need for pharmacists to provide good medical services to inpatients; as a result, many pharmacists conduct pharmaceutical management in hospital wards. However, pharmacists who have limited experience in working in the ward do not know exactly what they should check with respect to pharmaceutical management. To resolve this problem, we determined 16 pharmaceutical-management items based on PREAVOID that was conducted at Nagara Medical Center. Moreover, we conducted a pre-questionnaire survey assessing whether pharmacists who had worked in the ward for fewer than 4 years attended to these 16 check items in their daily work prior to our introducing the list to them. The results indicated that pharmacists who had fewer than 2 years of experience working in wards attended to the 16 check items less than those who had more than 2 years of experience, and approximately half of the pharmacists had not received adequate guidance before beginning work at the ward. In addition, most pharmacists indicated that clear check points were useful for conducting pharmaceutical management and the 16 check items were useful for their daily work. These results indicate that the 16 check items are a useful educational tool for enabling pharmacists to conduct high quality pharmaceutical management from the initial stage and that using the 16 check items is superior to pharmacists only gaining this ability via prolonged experience working in the ward.
5.Survey of the Economic Effect of Prescription Questions Associated with Renal Function and the Antibiotics Treatment Completion Rate
Makoto NAKASHIMA ; Hideki HAYASHI
Japanese Journal of Drug Informatics 2022;24(2):88-97
Objective: Drugs that are excreted by the kidneys may require dose adjustments, depending on the patient’s renal function. The pharmacist must ask the prescribing physician about the prescription if a dose is deemed inappropriate. In the current study, we investigated the economic effects of prescription questions associated with renal function and the antibiotics treatment completion rate.Methods: The current study included inpatient prescription inquiries by pharmacists at our institution between January and December 2018. For all cases that were inquired prescription, the economic effects were estimated as follows; the drug costs were calculated based on drug prices at April 2018 edition, and the reduced medical care costs associated with avoiding adverse reactions due to prescription questions were calculated based on the number of benefits and the total cost of benefits in the Relief System for Sufferers from Adverse Drug Reactions. The antibiotics treatment completion rates were calculated based on the number of cases in which drug and dose maintained after prescription questions.Results: The study included 279 cases, 266 of which involved inappropriate doses due to deteriorated renal function. Most prescriptions were for antibiotics. The drug costs were reduced due to the prescription question in 213 cases; the total reduced cost was 699,483 Japanese yen. The economic effects associated with avoiding adverse reactions due to prescription questions were worth approximately 11,481,056 Japanese yen. The completion rate of antibiotic treatment in cases where doses were reduced due to prescription questions was 63.0% (treatment of 75 cases completed/all cases were 119), compared with 63.6% (7 cases/11 cases) in cases in which doses were not changed. Thus, dose reduction due to questions regarding the prescription did not lead to reduced completion rates of antibiotics treatment (p=0.621).Conclusion: Dose adjustments due to prescription questions about drugs excreted by the kidneys led to reduced drug costs and adverse reactions, and did not result in negative effects during infectious disease therapy.
6.Survey on the Inpatient’s Antibiogram Affected by Sampling Day Difference
Makoto NAKASHIMA ; Takeshi TAKAHASHI ; Yuka NAKAKIHARA ; Hideki HAYASHI
Japanese Journal of Drug Informatics 2022;23(4):155-165
Objective: Antibiogram preparation is important for the proper selection of antimicrobial agent in empiric therapy. It is recommended to prepare the antibiogram separately for inpatients and outpatients. However, the antimicrobial agent susceptibility of bacteria detected from an inpatient is thought to be different when detected at an early date after admission and after a certain period after admission.Methods: In this study, we defined the bacteria detected from an inpatient within 3 days after admission as “brought bacteria” and those over 3 days after admission as “bacteria detected after admission.” Antimicrobial agent susceptibilities of brought bacteria and bacteria detected after admission in our hospital between April 2018 and March 2019 were compared for Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa.Results: The occurrence rate of Escherichia coli producing an extended β-lactamase of bacteria detected after admission was found to be significantly higher compared with that of brought bacteria. The sulbactam/ampicillin susceptibility rate of bacteria detected after admission was significantly lower than that of brought bacteria. The occurrence rate of the two drug-resistant Pseudomonas aeruginosa detected after admission tends to be higher compared with that of brought bacteria.Conclusion: Our findings showed that the susceptibility rate of some drugs differed substantially between brought bacteria and bacteria detected after admission. Therefore, the inpatient’s antibiogram is thought to be prepared by separating bacteria detected at an early date after admission and after a certain period after admission, leading to the proper selection of antimicrobial agent in empiric therapy tailored to a patient’s number of days in the hospital.