Clinical prediction of bacteremia and early antibiotics therapy in patients with solid tumors

Author(s):  
Jonathan M. Hyak ◽  
Mayar Al Mohajer ◽  
Daniel M. Musher ◽  
Benjamin L. Musher

Abstract Objective: To investigate the relationship between the systemic inflammatory response syndrome (SIRS), early antibiotic use, and bacteremia in solid-tumor patients. Design, setting, and participants: We conducted a retrospective observational study of adults with solid tumors admitted to a tertiary-care hospital through the emergency department over a 2-year period. Patients with neutropenic fever, organ transplant, trauma, or cardiopulmonary arrest were excluded. Methods: Rates of SIRS, bacteremia, and early antibiotics (initiation within 8 hours of presentation) were compared using the χ2 and Student t tests. Binomial regression and receiver operator curves were analyzed to assess predictors of bacteremia and early antibiotics. Results: Early antibiotics were administered in 507 (37%) of 1,344 SIRS-positive cases and 492 (22%) of 2,236 SIRS-negative cases (P < .0001). Of SIRS-positive cases, 70% had blood cultures drawn within 48 hours and 19% were positive; among SIRS negative cases, 35% had cultures and 13% were positive (19% vs 13%; P = .003). Bacteremic cases were more often SIRS positive than nonbacteremic cases (60% vs 50%; P =.003), but they received early antibiotics at similar rates (50% vs 49%, P = .72). Three SIRS components predicted early antibiotics: temperature (OR, 1.7; 95% CI, 1.31–2.29; P = .0001), tachycardia (OR, 1.4; 95% CI, 1.10–1.69; P < .0001), and white blood-cell count (OR, 1.8; 95% CI, 1.56–2.14; P < .0001). Only temperature (OR, 1.6; 95% CI, 1.09–2.41; P = .01) and tachycardia (OR, 1.5; 95% CI, 1.09–2.06; P = .01) predicted bacteremia. SIRS criteria as a composite were poorly predictive of bacteremia (AUC, 0.57). Conclusions: SIRS criteria are frequently used to determine the need for early antibiotics, but they are poor predictors of bacteremia in solid-tumor patients. More reliable models are needed to guide judicious use of antibiotics in this population.

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S103-S104
Author(s):  
Jonathan M Hyak ◽  
Mayar Al Mohajer ◽  
Daniel Musher ◽  
Benjamin Musher

Abstract Background Cancer patients (pts) frequently receive empiric antibiotics without clear indication. This retrospective study investigated the relationship between the systemic inflammatory response syndrome (SIRS), early antibiotic (Anb) use, and bacteremia in solid tumor pts presenting to the emergency department (ED). Methods We extracted data from the electronic medical records of adults with solid tumors admitted to a tertiary care hospital through the ED for any reason over a 2 year period. Pts with neutropenic fever, organ transplant, trauma, or cardiopulmonary arrest were excluded. Rates of SIRS and bacteremia among pts receiving early Anb (eAnb, within 8 hours of admission) were compared to all others using χ 2. Binomial regression and receiver operator curves assessed predictors of bacteremia. Results Of 3580 eligible pts, 1344 pts were SIRS positive (≥ 2 criteria) and 2236 were SIRS negative; 501 (37%) and 493 (22%), respectively, received eAnb (p&lt; 0.001). eAnb use increased with additional SIRS criteria (Fig 1). Of SIRS positive pts, 860 (64%) had BCs drawn within 48 hrs of presentation, of which 19% were positive. Of SIRS negative pts, 826 (37%) had cultures drawn within 48 hrs of presentation, of which 14% were positive (19% vs 14%, p=0.004). Of pts who had BCs drawn, the proportion of positive BCs among those who received eAnb and those who did not was identical (16% in each group; p=1). Of 276 pts ultimately proven to have bacteremia within 48 hrs, only 59% were SIRS positive, and only 49% received eAnb in the ED. By regression, only two SIRS components predicted bacteremia, fever (OR 1.8 ± 0.39, p=0.01) and tachycardia (1.4 ± 0.22, p=0.03), and SIRS criteria as a whole were poorly predictive of bacteremia (AUC 0.57, Table 1). A more robust model, which included additional labs and vital signs, was only marginally better (AUC 0.61, Table 2). Figure 1: Proportion of patients receiving early antibiotics by SIRS score Table 1: SIRS as a predictor of bacteremia Table 2: Best predictive model of bacteremia Conclusion Clinicians still use SIRS criteria to determine the need for eAnb. However, SIRS criteria are poor predictors of bacteremia in solid tumor pts, who frequently manifest them due to complications of cancer or cancer-directed therapy rather than infection. Furthermore, patients who are SIRS negative may be bacteremic. More reliable models are needed to guide judicious use of Anb in the solid tumor population. Disclosures All Authors: No reported disclosures


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S97-S98
Author(s):  
Jonathan M Hyak ◽  
Mayar Al Mohajer ◽  
Benjamin Musher

Abstract Background Computer-based antibiotic time-outs, in which providers receive automated electronic medical record (EMR) alerts regarding continuation of inpatient antibiotics (Anb), are common stewardship initiatives. We assessed the efficacy of such an intervention in oncology patients (pts), who frequently receive Anb when hospitalized. Methods An EMR alert triggered 48 hours after starting vancomycin (vanc), cefepime (cef), piperacillin-tazobactam (pip-tazo), meropenem (mero), and fluoroquinolones (flq) was initiated in a tertiary care hospital in November 2018. To assess the efficacy of the intervention in adults with solid tumor malignancies, demographic, vital sign, laboratory, and treatment data were extracted retrospectively from the EMR. Pts with neutropenic fever, organ transplant, trauma, and cardiopulmonary arrest were excluded. We compared length of therapy [LOT; days of therapy per 1000 patient-days (DOT/1000 pd)] via t-test and incidence rate ratio (IRR) for 3- and 12-month periods preceding and following the intervention. November 2018 was excluded as a washout period. Results The groups did not differ by age, sex, length of stay, or rate of bacteremia (Table 1). Comparing the 3 months before and after the intervention, neither mean LOT (2.9 ± 0.20 vs 2.6 ± 0.14 DOT/1000 pd, p=0.31) nor rate of Anb use changed (IRR 0.97, p=0.32). However, when considering only the Anb targeted by the intervention, cef usage was 1.4 times higher post- intervention (p=0.002), while use of other Anb was similar (Table 2). Comparing 12 months before to 12 months after the intervention, mean LOT was longer after (0.74 ± 0.018) than before (0.68 ± 0.020 DOT/1000 pd; p=0.03), and Anb use increased (IRR 1.3, p&lt; 0.0001). Specifically, mero (IRR 1.8, p&lt; 0.0001) and cef (1.6, p&lt; 0.0001) were used more frequently after the intervention while none were used less (table 2). Table 1: Study Group Characteristics Table 2: Antibiotic Use Three Months Before and After, and Twelve Months Before and After, the Intervention Conclusion Despite wide adoption and efficacy in other populations, an EMR-based Anb time-out did not mitigate the continuation of Anb among inpatients with solid tumors. The intervention may require additional measures, such as an active role for pharmacy, to be effective. However, qualitative studies may also be required to understand why providers are hesitant to limit Anb use in this population. Disclosures All Authors: No reported disclosures


2021 ◽  
Vol 8 (10) ◽  
pp. 608-618
Author(s):  
Asiah Salem Rugaan ◽  
Naved Hasan ◽  
Masood Iqbal ◽  
Elaf Damanhouri ◽  
Rwan Emad Radi ◽  
...  

Objective: There is a paucity of research on the factors predicting mortality and a length of stay in the Intensive Care Unit (ICU) with solid tumor patients. This study will assess the characteristics and predictors of outcomes of patients with solid tumors in medical ICU. Material and Methods: This research has been designed as a retrospective observational study using an ICU database. Patients who have a solid tumor were included in the study (May 2015 to July 2018). Post-surgical and those with a length of stay of more than one day are excluded from the study. We identified the predictors     for ICU mortality and ICU long stay (≥21 days). Results: Out of 2883 patients, 364 patients with solid tumors were enrolled. The commonest sites for solid tumors were breast (15.9%), colorectal (11.5%), and lung (9.9%). 158 (43.4%) had metastatic disease, and 264 (72.5%) with progressive disease. The major reasons for ICU admission were a respiratory failure (52.7%) and severe sepsis (52.2%). The ICU and hospital mortality rates were 32.4% and 47%, respectively. Fifty patients (13.7%) had long stayed (≥ 21 days) in ICU. The independent predictors for mortality were Sequential Organ Failure Assessment (SOFA) score (OR, 1.2; 95% CI, 1.1–1.3; P=.000), invasive ventilation (OR, 3.5; 95% CI, 1.5–8.3; P=.004) and vasopressor (OR, 2.6; 95% CI, 1.1–5.9; P=.018), while the independent predictors of long-stay were ICU infections (odds ratio [OR], 18.9; 95% CI, 5.3 – 66.7; P=.0001), SOFA score (OR, 1.5; 95% CI, 1.2–1.8; P=.0001), invasive ventilation (OR, 8.2; 95% CI, 1.6–40.4; P=.009), bilirubin (OR, .5; 95% CI .2–.9; P=.049). Conclusion: Irrespective of the cancer stage, patients had a reasonable survival, and most do not require a long stay in the ICU. Flexibility in admission should be considered as disease progression and metastatic disease were not independent predictors of ICU mortality or long stay in this study.


2020 ◽  
Vol 41 (S1) ◽  
pp. s168-s169
Author(s):  
Rebecca Choudhury ◽  
Ronald Beaulieu ◽  
Thomas Talbot ◽  
George Nelson

Background: As more US hospitals report antibiotic utilization to the CDC, standardized antimicrobial administration ratios (SAARs) derived from patient care unit-based antibiotic utilization data will increasingly be used to guide local antibiotic stewardship interventions. Location-based antibiotic utilization surveillance data are often utilized given the relative ease of ascertainment. However, aggregating antibiotic use data on a unit basis may have variable effects depending on the number of clinical teams providing care. In this study, we examined antibiotic utilization from units at a tertiary-care hospital to illustrate the potential challenges of using unit-based antibiotic utilization to change individual prescribing. Methods: We used inpatient pharmacy antibiotic use administration records at an adult tertiary-care academic medical center over a 6-month period from January 2019 through June 2019 to describe the geographic footprints and AU of medical, surgical, and critical care teams. All teams accounting for at least 1 patient day present on each unit during the study period were included in the analysis, as were all teams prescribing at least 1 antibiotic day of therapy (DOT). Results: The study population consisted of 24 units: 6 ICUs (25%) and 18 non-ICUs (75%). Over the study period, the average numbers of teams caring for patients in ICU and non-ICU wards were 10.2 (range, 3.2–16.9) and 13.7 (range, 10.4–18.9), respectively. Units were divided into 3 categories by the number of teams, accounting for ≥70% of total patient days present (Fig. 1): “homogenous” (≤3), “pauciteam” (4–7 teams), and “heterogeneous” (>7 teams). In total, 12 (50%) units were “pauciteam”; 7 (29%) were “homogeneous”; and 5 (21%) were “heterogeneous.” Units could also be classified as “homogenous,” “pauciteam,” or “heterogeneous” based on team-level antibiotic utilization or DOT for specific antibiotics. Different patterns emerged based on antibiotic restriction status. Classifying units based on vancomycin DOT (unrestricted) exhibited fewer “heterogeneous” units, whereas using meropenem DOT (restricted) revealed no “heterogeneous” units. Furthermore, the average number of units where individual clinical teams prescribed an antibiotic varied widely (range, 1.4–12.3 units per team). Conclusions: Unit-based antibiotic utilization data may encounter limitations in affecting prescriber behavior, particularly on units where a large number of clinical teams contribute to antibiotic utilization. Additionally, some services prescribing antibiotics across many hospital units may be minimally influenced by unit-level data. Team-based antibiotic utilization may allow for a more targeted metric to drive individual team prescribing.Funding: NoneDisclosures: None


2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Atiporn Boonyai ◽  
Anchalee Thongput ◽  
Thidarat Sisaeng ◽  
Parisut Phumchan ◽  
Navin Horthongkham ◽  
...  

Abstract Background Prevalence and incidence of hepatitis caused by HEV infection are usually higher in developing countries. This study demonstrated the HEV seroprevalence and incidence of HEV infection in patients with clinical hepatitis in a tertiary hospital in Thailand. Methods A laboratory-based cross-sectional study was conducted using 1106 serum samples from patients suspected of HEV infection sent to the Serology laboratory, Siriraj Hospital, for detecting HEV antibodies during 2015–2018. Prevalence of anti-HEV IgG and IgM antibodies in general patients, including organ transplant recipients and pregnant women in a hospital setting, were determined using indirect enzyme-linked immunosorbent assay (ELISA) kits. Comparison of laboratory data between groups with different HEV serological statuses was performed. Results HEV IgG antibodies were detected in 40.82% of 904 serum samples, while HEV IgM antibodies were detected in 11.75% of 1081 serum samples. Similar IgG and IgM antibody detection rates were found in pregnant women. Interestingly, anti-HEV IgM antibodies were detected in 38.5% of patients who underwent organ transplantation. Patients who tested positive for anti-HEV IgM antibodies had higher alanine aminotransferase levels than those who had not. In contrast, patients who tested positive for anti-HEV IgG had more elevated levels of total bilirubin than those who tested negative. Conclusions HEV seroprevalence and incidence in patients with clinical hepatitis were relatively high in the Thai population, including the pregnancy and organ transplant subgroups. The results potentially benefit the clinicians in decision-making to investigate HEV antibodies and facilitating proper management for patients.


2021 ◽  
Author(s):  
Aslınur Albayrak ◽  
Nazmi Mutlu Karakaş ◽  
Bensu Karahalil

Abstract BackgroundUpper respiratory tract infections (URTIs) are common in children. Most URTIs have been shown to be of viral origin. Inappropriate use of antibiotics is one of the main causes of antibiotic resistance. The problem of unnecessary antibiotic use among children is a concern for antibiotic resistance in low- and middle-income developing countries.MethodsOur study is a cross-sectional survey study. It was carried out between 14 December 2020 and 1 April 2021 for parents over 18 years of age with a child under 18 years’ old who applied to the general pediatrics outpatient clinics of Gazi University Faculty of Medicine Hospital Department of Pediatrics.Results554 parents responded to the questionnaire. A total of 15.7% of parents stated to use antibiotics in any child with fever. 37% of parents believed that antibiotics could cure infections caused by viruses. 6.3% of parents declared that they put pressure on pediatricians to prescribe antibiotics. 85.6% of the parents stated that they never gave their children non-prescription antibiotics when they had a high fever. 80.9% of them declared that they never used past antibiotics in the presence of a new infection. Female gender, high level of education, high income level and low number of antibiotics used in the last 1 year were found to be statistically significant with the better knowledge level of the parents (p <0.05).ConclusionAccording to the results of our study of parents' lack of knowledge about antibiotics in Turkey, though generally it shows proper attitude and behavior. It shows that some of the restrictions imposed by the National Action Plan are partially working. However, it is still necessary to continue to inform parents, pediatricians and pharmacists about the use of antibiotics, and to be more sensitive about the prescribing of antibiotics, and if necessary, sanctions should be imposed by the state in order to prevent unnecessary antibiotic prescriptions.


Author(s):  
SREEJA NYAYAKAR ◽  
MANDARA MS ◽  
HEMALATHA M ◽  
LALLAWMAWMI ◽  
MOHAMMED SALAHUDDIN ◽  
...  

Objective: Antibiotics are the only drug where use in one patient can impact the effectiveness in another, so antibiotic misuse adversely impacts the patients and society. Improving antibiotic use improves patient outcomes and saves money. Antibiotic resistance has been identified as a major threat by the WHO due to the lack of development of new antibiotics and the increasing infections caused by multidrug resistance pathogens became untreatable. Methods: A prospective observational study was conducted for a period of 6 months. Data were collected from prescriptions and inpatient record files at the surgery department of the tertiary care hospital. Patients above age of 18 years of either gender whose prescription containing the antibiotics and patients who are willing to participate in the study were included in the study. Microsoft Excel was used for recording and analyzing the data of recruited subjects. Results: During our study period, we have collected 100 cases as per inclusion criteria, in total collected 100 cases, 52% are male and 48% are female. The mean age and standard deviation of the study population were found to be 46.61±16.12. The most commonly prescribed classification before and after the surgery is cephalosporin’s that is 57%. Results show that in pre-surgery, almost 93% of prescriptions have chosen the drugs as per ASHP guidelines, whereas in post-surgery, 95% of drugs have selected the drug as per ASHP guidelines. Conclusion: Our study has observed that some of the prescriptions are irrationally prescribed so the pharmacist has to take the responsibility to improve the awareness regarding rational prescribing of antibiotics. The national wide monitoring of antibiotics use, national schemes to obtain rational use of antibiotics, reassessing the prescriptions, education to practitioners, and surveys on antibiotics should be implemented.


2020 ◽  
Vol 8 (1) ◽  
pp. 35
Author(s):  
Hetal N. Jeeyani ◽  
Rutvik H. Parikh ◽  
Sheena Sivanandan ◽  
Harsh J. Muliya ◽  
Shivam N. Badiyani ◽  
...  

Background: Inappropriate use and overuse of antibiotics are important factors leading to increased bacterial resistance apart from increased risk of adverse reactions. The aim of this study was to derive antibiotic use percentage, study its pattern and compare antibiotic prescribing indicators with standard indicators.Methods: This prospective observational study was conducted from 1st August 2018 to 31st July 2019 on paediatric inpatients from 1 month to 14 years. All the relevant data was taken from the case records of patients at the time of discharge. The data included: age, sex, hospital stay, clinical diagnosis and details of antimicrobial treatment.Results: From 989 patients, 85.9% were diagnosed with infectious illness, of which 60.1% had viral and 36.7% had bacterial infection. The use of antimicrobial drugs was 42.7% and antibiotics was 40.4%. The mean number of antibiotics received was 1.13±0.31. 90% patients received single antibiotic. 88.8% drugs were prescribed by generic name and 99% drugs were prescribed from essential drug formulary. 17 different antibiotics were used out of which ceftriaxone (62.5%) was the most commonly used. Groupwise, antibiotic use was cephalosporins (68.4%), penicillin (20.2%), aminoglycosides (4.31%), fluoroquinolones (0.9%) and macrolides (0.22%). The use of higher antibiotics like vancomycin (3.86%) and carbapenems (0.68%) was quite less.Conclusions: The antibiotic use in our hospital was higher than the WHO standard but less as compared to majority of other studies. Use of cephalosporins was more and penicillin was less as compared to other studies. This suggests that there is a need of implementing antibiotic stewardship programs to enhance rational antibiotic prescribing.


2015 ◽  
Vol 7 (02) ◽  
pp. 108-111 ◽  
Author(s):  
Tuhina Banerjee ◽  
Shampa Anupurba ◽  
Joel Filgona ◽  
Dinesh K Singh

ABSTRACT Background: Alarming rise of vancomycin-resistant enterococci (VRE) is a global cause of concern. Several factors have been held responsible for such rise, of which antibiotic usage is a prominent one. Objectives: This study was undertaken to determine the intestinal VRE colonization rate amongst hospitalized patients in relation to use of various antibiotics in the Intensive Care Unit (ICU) of a tertiary care university hospital, India. Materials and Methods: Stool samples were collected weekly from all the patients in the adult ICU for a period of 6 months and processed for isolation and phenotypic and genotypic characterization of VRE isolates. Patient and treatment details were noted and cases (those with VRE in stool) and controls (those without VRE in stool) were compared statistically. Further, a multivariate analysis was done to identify those antibiotics as independent risk factors for VRE colonization. Results: VRE colonization was found in 34.56% (28/81) of the patients studied, with the majority 75% (21/28) carrying the vanA gene. The cases had significantly more (P < 0.05) duration of hospital stay and antibiotic exposure. Intake of metronidazole, vancomycin, and piperacillin-tazobactam were identified as significant risk factors both in univariate and multivariate analysis. Conclusion: A potential reservoir of VRE was thus revealed even in low VRE prevalence setting. Based on this high colonization status, restriction of empirical antibiotic use, reviewing of the ongoing antibiotic policy, and active VRE surveillance as an integral part of infection control strategy were suggested.


Author(s):  
Sarang A Deshmukh ◽  
Yashasvi Agarwal ◽  
Harshita Hiran ◽  
Uma Bhosale

 Objective: The objective of the study was to evaluate antimicrobial prescription pattern in outpatient departments.Method: This was a prospective, cross-sectional and observational study over 12 weeks total 400 prescriptions of either gender and age; containing antimicrobial agents (AMAs) were analyzed for demographic data and the WHO prescribing indicators.Results: Most of prescription were given to men (n=262). The most common group of AMA used was Cephalosporins (n=141, 35.25%); of which Ceftriaxone was most commonly prescribed (n=73, 18.25%). 10 AMAs were from the WHO essential medicine list AMAs. Men outnumbered women in prescribing antibiotics (n=262 vs. 138). Most of AMAs receivers were between 26 and 35 years (n=128, 32%). Amoxicillin+Clavulanic acid fixed-dose combination was most common (n=84, 21%). Most of the prescriptions were containing four drugs per prescriptions (n=130, 32.5%). Only 10% of the prescription was given by generic name and rest 90% were given by brand name. Oral dosage form of AMAs was predominant (n=340, 85%). Vitamins and supplement were most common comedication received by patients.Conclusion: Antibiotic use was found to be reasonable and rational in most of the cases. However, still, prescribers should improve prescribing practices and make it more rational.


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