Time Of Administration Research Articles

Evaluation of General Surgery Physicians' Approaches to Surgical Antimicrobial Prophylaxis by Questionnaire Method

Introduction: Surgical site infections (SSIs) are infections of the incision site, organ or cavity that occur after surgery, causing a significant burden in terms of morbidity, mortality and healthcare costs. SSIs are the most common healthcare-associated infections in low- and middle-income countries and may affect one-third of surgical patients. This study aimed to conduct a face-to-face survey to evaluate general surgeons' approaches and knowledge levels before and after the training seminar on the use of surgical antimicrobial prophylaxis (SAP). Material and Method: An information-oriented questionnaire consisting of 10 questions was administered to a total of 18 surgeons working a General Surgery Department before and after the education meeting to evaluate their knowledge and attitudes towards the use of SAP. Data were presented as number, percentage, mean (standard deviation) and Fisher exact test was used to compare categorical data. Results: All participants answered the question regarding the time of prophylactic antibiotic administration correctly in both surveys. According to the current American Society of Health-System Pharmacists (ASHP) guideline for cefazolin, 42.2% of the patients had the correct time of antibiotic administration. The proportion of patients whose cefazolin selection, dose and time of administration were appropriate was 14.6%. The number of physicians who thought that postoperative antibiotic prophylaxis was not significantly increased from 16 (88.8%) before the meeting to 18 (100%) after the meeting (p>0.05). In our study, the number of patients who continued to be given antibiotics unnecessarily postoperatively was 66 (16.4%). Conclusion: In order to increase the rate of optimal application of the theoretical knowledge to patients in practice, it is important to organize routine trainings based on current literature and service data for surgeons with a high workload and to follow the reflection of these trainings to the clinic in order to improve SAP compliance rates.

EXAMINING STUDENTS’ ORAL CORRECTIVE FEEDBACK PREFERENCES FOR IMPROVING SPEAKING PROFICIENCY

This article examined the fundamental OFC types that students prefer for oral corrective feedback to improve their speaking ability in speaking class. It aims to give a clearer understanding of beliefs alignment between teachers and students, thus enabling them to choose appropriate OCF techniques that will enhance students’ performance. This study also contributes to the comprehension of OCF use in the educational context of Indonesia which is aimed at evidencing data-based learning. This research was carried out at Universitas Negeri Malang specifically in the Department of English and used descriptive quantitative design through surveys where respondents were 116. The instrument of this study was a questionnaire. The result indicates that when providing OCF, student emotions and preferences should be considered since these directly affect both the kind of feedback to be given and its effectiveness. In terms of the “delivery” of the feedback, students prefer metalinguistic and recast feedback types. However, there are some discrepancies in terms of their perceived effectiveness among students. Notably, metalinguistic, repetition, as well as recast OCF types, proved most advantageous concerning proficiency development. Furthermore, indirect OCF is more favored than direct administration timing. This research implies that metalinguistic, repetition, and recast feedback are types of OCF that are suitable for use in speaking classes with the aim of improving speaking performance. Since this research has not provided a data-based explanation of how students' preferred OCF helps improve their performance, future research is expected to conduct an in-depth exploration of its successful use.

Should Empiric Anti-Fungals Be Administered Routinely for All Patients with Perforated Peptic Ulcers? A Critical Review of the Existing Literature.

A perforated peptic ulcer (PPU) is a surgical emergency with a high mortality rate. PPUs cause secondary peritonitis due to bacterial and fungal peritoneal contamination. Surgery is the main treatment modality and patient's comorbidites impacts perioperative morbidity and surgical outcomes. Even after surgery, resuscitation efforts should continue. While empiric antibiotics are recommended, the role of empiric anti-fungal treatment is unclear due to a lack of scientific evidence. This literature review demonstrated a paucity of studies evaluating the role of empiric anti-fungals in PPUs, and with conflicting results. Studies were heterogeneous in terms of patient demographics and underlying surgical pathology (PPUs vs. any gastrointestinal perforation), type of anti-fungal agent, timing of administration and duration of use. Other considerations include the need to differentiate between fungal colonization vs. invasive fungal infection. Despite positive fungal isolates from fluid culture, it is important for clinical judgement to identify the right group of patients for anti-fungal administration. Biochemistry investigations including new fungal biomarkers may help to guide management. Multidisciplinary discussions may help in decision making for this conundrum. Moving forward, further research may be conducted to select the right group of patients who may benefit from empiric anti-fungal use.

Phage-Mediated Digestive Decolonization in a Gut-On-A-Chip Model: A Tale of Gut-Specific Bacterial Prosperity.

Infections due to antimicrobial-resistant bacteria have become a major threat to global health. Some patients may carry resistant bacteria in their gut microbiota. Specific risk factors may trigger the conversion of these carriages into infections in hospitalized patients. Preventively eradicating these carriages has been postulated as a promising preventive intervention. However, previous attempts at such eradication using oral antibiotics or probiotics have led to discouraging results. Phage therapy, the therapeutic use of bacteriophage viruses, might represent a worthy alternative in this context. Taking inspiration from this clinical challenge, we built Gut-On-A-Chip (GOAC) models, which are tridimensional cell culture models mimicking a simplified gut section. These were used to better understand bacterial dynamics under phage pressure using two relevant species: Pseudomonas aeruginosa and Escherichia coli. Model mucus secretion was documented by ELISA assays. Bacterial dynamics assays were performed in GOAC triplicates monitored for 72 h under numerous conditions, such as pre-, per-, or post-bacterial timing of phage introduction, punctual versus continuous phage administration, and phage expression of mucus-binding properties. The potential genomic basis of bacterial phage resistance acquired in the model was investigated by variant sequencing. The bacterial "escape growth" rates under phage pressure were compared to static in vitro conditions. Our results suggest that there is specific bacterial prosperity in this model compared to other in vitro conditions. In E. coli assays, the introduction of a phage harboring unique mucus-binding properties could not shift this balance of power, contradicting previous findings in an in vivo mouse model and highlighting the key differences between these models. Genomic modifications were correlated with bacterial phage resistance acquisition in some but not all instances, suggesting that alternate ways are needed to evade phage predation, which warrants further investigation.

Development, Characterization, and Evaluation of Potential Systemic Toxicity of a Novel Oral Melatonin Formulation.

The need to create safe materials for biomedical and pharmaceutical applications has become a significant driving force for the development of new systems. Therefore, a chitosan-coated copolymer of itaconic acid, acrylic acid, and N-vinyl caprolactam (IT-AA-NVC) was prepared by radical polymerization and subsequent coating via nanoprecipitation to give a system capable of sustained delivery of melatonin. Although melatonin brings undoubted benefits to the human body, aspects of the optimal dose, route, and time of administration for the obtaining of suitable treatment outcomes remain under discussion. The entrapment of melatonin in biocompatible polymeric systems can prevent its oxidation, decrease its toxicity, and provide an increased half-life, resulting in an enhanced pharmacokinetic profile with improved patient compliance. The structures of the biopolymer and conjugate were proven by FTIR, thermal properties were tested by DSC, and the morphologies were followed by SEM. The loading efficiency and in vitro release profile were studied by means of HPLC, and a delayed release profile with an initial burst was obtained. The potential systemic toxicity of the formulation was studied in vivo; a mild hepatotoxicity was observed following administration of the melatonin-loaded formulation to mice, both by histopathology and blood clinical biochemistry. Histopathology showed a mild nephrotoxicity as well; however, kidney clinical biochemistry did not support this.

Effectiveness of Brogandi (Broccoli and Gotu Kola) on Cognitive Function among Elderly

Introduction: Broccoli and Gotu Kola (Brogandi) are known to improve cognitive function, but the combination of the two to improve cognitive function is still limited. Objective: This study aimed to analyze the effectiveness of Brogandi in improving cognitive function in healthy elderly, mild dementia and moderate dementia. Methods: This research used a pre and post test design on 38 elderly people at Griya Lansia Garut. Cognitive function examination uses the MMSE (Mini Mental State Examination) questionnaire. The dose of brogandi given is 2x500 mg/day for 14 weeks. Results: Brogandi can improve cognitive function in elderly with mild dementia (p=0.001). Conclusion: Giving Brogandi at a dose of 2x500mg/day for 14 weeks is effective in improving cognitive function in elderly with mild dementia. Meanwhile, in elderly people with moderate dementia, further research needs to be done in the form of increasing the dose and taking a longer administration time.

Exploring factors influencing delayed first antibiotic treatment for suspected early-onset sepsis in preterm newborns: a study before quality improvement initiative

BackgroundEarly-onset sepsis (EOS) is a serious illness that affects preterm newborns, and delayed antibiotic initiation may increase the risk of adverse outcomes.PurposeThe objective of this study was to examine the present time of antibiotic administration in preterm infants with suspected EOS and the factors that contribute to delayed antibiotic initiation.MethodsIn this retrospective study in China, a total of 82 early preterm infants with suspected EOS between December 2021 and March 2023 were included. The study utilized a linear regression analytical approach to identify independent factors that contribute to delayed antibiotic administration.ResultsThe mean gestational age and birth weight of the study population were 29.1 ± 1.4 weeks and 1265.7 ± 176.8 g, respectively. The median time of initial antibiotic administration was 3.8 (3.1-5.0) hours. Linear regression revealed that severe respiratory distress syndrome (RDS) (β = 0.07, P = 0.013), penicillin skin test (PST) timing (β = 0.06, P < 0.001) and medical order timing (β = 0.04, P = 0.017) were significantly associated with the initial timing of antibiotic administration.ConclusionsThere is an evident delay in antibiotic administration in preterm infants with suspected EOS in our unit. Severe RDS, PST postponement and delayed medical orders were found to be associated with the delayed use of antibiotics, which will be helpful for quality improvement efforts in the neonatal intensive care unit (NICU).

Vaccination equilibrium: Externality and efficiency

I study individual consumers’ choices of getting vaccinated. A vaccine reduces the severity of an infectious illness, but may produce side-effects and other disutilities at the time of administration. Such private benefits and disutilities vary across consumers in the population. The infection probability depends negatively on the total mass of vaccinated consumers. This is an externality. One consumer’s vaccination choice has negligible contribution to the total mass of vaccinated consumers. Consumers do not internalize the externality. I characterize a unique Vaccination Equilibrium, the sustainable vaccination mass resulting from individual decisions. I show how vaccine improvements in benefits, side-effects, and infection likelihood change the Vaccination Equilibrium. The first-best or efficient vaccination mass takes into account the externality and consumers’ benefits and costs. The unique Vaccination Equilibrium is never first best. Taxes, subsidies, and mandates may change the Vaccination Equilibrium.

Natural Health Products for Anti-Cancer Treatment: Evidence and Controversy.

Natural Health Products (NHPs) have long been considered a valuable therapeutic approach for the prevention and treatment of various diseases, including cancer. However, research on this topic has led to inconclusive and often controversial results. This review aims to provide a comprehensive update of the effects and mechanisms related to the use of NHPs, to describe the results of randomized clinical trials (RCTs) on their effects in cancer patients, and to critically discuss factors influencing clinical outcomes. RCTs available in the literature, even those studying the same NHP, are very heterogeneous in terms of indications, doses, route and timing of administration, and outcomes evaluated. Silymarin, ginsenoside, and vitamin E appear to be useful in attenuating adverse events related to radiotherapy or chemotherapy, and curcumin and lycopene might provide some benefit in patients with prostate cancer. Most RCTs have not clarified whether NHP supplementation provides any real benefit, while harmful effects have been shown in some cases. Overall, the available data suggest that although there is some evidence to support the benefits of NHPs in the management of cancer patients, further clinical trials with the same design are needed before their introduction into clinical practice can be considered.

Preoperative Gabapentin for Pain Control: A Randomized, Placebo-controlled Clinical Trial in Patients Undergoing Inguinal Hernioplasty

PurposeThe perioperative use of gabapentin has been suggested to reduce postoperative pain and opioid consumption. However, there is a variation in clinical practice, the type of surgery and the administration time seem to be distinct between the available studies. We assess whether gabapentin administered before surgery reduces postoperative pain in patients who have undergone inguinal hernioplasty. DesignThis is a double-blind, randomized, and placebo-controlled trial. MethodsSeventy-seven patients scheduled for inguinal hernioplasty were randomized in two groups to receive gabapentin (900 mg) or placebo in the perioperative period. The primary outcome was analgesia measured by visual analog scale up to 30 days after surgery. The secondary outcomes such as morphine consumption, nausea, headache, and sedation have been also described. FindingsPatients who received gabapentin had lower postoperative pain scores compared to the control group, P < .001. The postoperative morphine use was significantly lower in the gabapentin (5.3%) versus placebo group (74.4%), P < .001. No significant difference between groups was observed for the occurrence of adverse events. ConclusionsThe perioperative administration of gabapentin was effective in reducing postoperative pain and had an important effect in decreasing morphine use. Together, our data reveal a long-lasting opioid-sparing effect of gabapentin in patients who underwent inguinal hernioplasty.

Cross‐sectional evaluation of a clinical decision support tool to identify medication‐related problems at discharge from the acute care setting

AbstractBackgroundThere are many reported pharmacist‐led transitions of care (TOC) programs to address medication‐related problems (MRP) at discharge from the acute care setting. Most have identified time and labor resources as significant limitations. This study aims to assess the effectiveness of a medication risk score (MRS)‐driven clinical decision support system (CDSS) in identifying actionable MRPs and improving medication safety in the acute care discharge TOC setting.MethodsA cross‐sectional analysis was conducted in a cohort of 481 subjects discharged from the acute care setting. The MRS‐CDSS was utilized to identify MRPs and provide recommendations for risk reduction. The distribution of MRPs, recommendations, and their associations with MRS severity were analyzed. Additionally, the potential reduction in MRS per subject and its correlation with MRS severity were examined.ResultsThe median MRS reduction per subject was 2 points, while high/severe‐risk patients showed a median potential reduction of 7 points. Among the identified MRPs (n = 691), drug interaction, drug use without indication, and adverse drug reaction accounted for 89.7% of all MRPs. The top three recommendations, discontinue medication, change the time of administration, and start alternative therapy, represented 94.1% of all recommendations. Stratified analysis by MRS category revealed a significant increase in adverse drug reaction MRPs and recommendations to discontinue medications with higher MRS severity. The results were consistent with previous outpatient studies, supporting the MRS‐CDSS's ability to enhance medication safety.ConclusionThis study demonstrates that the MRS‐CDSS effectively identifies actionable MRPs and has the potential to substantially reduce overall pharmacotherapy regimen risk when applied during acute care discharge TOC. The findings support implementable recommendations directed at patient safety and the allocation of health care resources to high‐risk patients for maximum benefit.

Corn-inspired high-density plasmonic metal-organic frameworks microneedles for enhanced SERS detection of acetaminophen

Effective monitoring of acetaminophen (APAP) dosage is crucial for preventing antipyretic abuse, ensuring therapeutic efficacy, and minimizing toxic effects. However, existing self-monitoring methods are limited. In this study, we designed a plasmonic microneedle (MN) sensor for real-time nondestructive monitoring of acetaminophen levels in dermal interstitial fluid (ISF) by employing a handheld Raman spectrometer. The fabricated MN sensor incorporated a high-density plasmonic MOFs known as HDPM, which unique structure of large specific surface area, specific pore structure as well as high density gold nanospheres packing enabled the excellent performance of selective ISF drug enrichment and surface-enhanced Raman scattering (SERS). The maximum electric field enhancement factor of the HDPM nanostructure could be calculated as 5.73 × 107. The developed HDPM@MNs was characterized with a core-shell type “soft on the outside and rigid on the inside” structure, which exhibited sufficient hardness and flexibility to penetrate the dermal tissue with little damage, and robust SERS enhancement effect in APAP detection without any interfering peaks. Through a hydrogel drug simulation experiment, the sensor demonstrated robust capabilities for acetaminophen enrichment and monitoring, exhibiting excellent stability and repeatability. The quantitative detection window spanned from 1 to 100 μM, with a low detection limit reaching 0.45 μM. Furthermore, by monitoring the concentration of acetaminophen in the interstitial fluid of rat skin at different doses and for different administration times, the HDPM@MNs can be used to determine the pharmacokinetics of acetaminophen in rats and the physiological characteristics associated with various dosage regimens. This work not only holds promise for drug monitoring but also provides a novel approach for nondestructive monitoring of other crucial low-abundance physiological markers.

Association of BNT162b2 SARS-CoV-2 vaccination during pregnancy with postnatal outcomes in premature infants.

The effect of COVID-19 vaccine given during pregnancy on premature infants is unknown. This study aims to determine the association between maternal COVID-19 vaccine with postnatal outcome in premature infants. This is a single-centre retrospective case-control study of infants born before 35 weeks gestation to mothers who received SARS-CoV-2 vaccine during pregnancy compared with infant born to non-vaccinated mothers. A total of 78 infants in each group were included. Infants in the vaccinated group had less respiratory distress syndrome (RDS) (p = 0.02) and less need for respiratory support (p = 0.002), and maternal vaccine had a protective effect on RDS [adjustable OR 0.38 (0.17-0.85)]. Vaccination during the first compared to the second trimester was associated with earlier gestational age (32.3 ± 2.1 vs. 33.3 ± 1.1 weeks, p = 0.03). We demonstrated that maternal SARS-CoV-2 vaccine is not associated with postnatal adverse effect in premature infants and potentially has a protective effect on RDS. Earlier gestational age among the infants born to mothers who received COVID-19 vaccine during the first trimester did not translate to higher rate of postnatal complications. These findings might suggest that COVID-19 vaccine is safe in high-risk pregnancies, but timing of administration should be considered. Further studies are needed to confirm our findings and the biological mechanism.

Barriers to integrating portable Magnetic Resonance Imaging systems in emergency medical service ambulances for stroke care

This study examines the barriers to integrating portable Magnetic Resonance Imaging (MRI) systems into ambulance services to enable effective triaging of patients to the appropriate hospitals for timely stroke care and potentially reduce door-to-needle time for thrombolytic administration. The study employs a qualitative methodology using a digital twin of the patient handling process developed and demonstrated through semi-structured interviews with 18 participants, including 11 paramedics from an Emergency Medical Services system and seven neurologists from a tertiary stroke care centre. The interview transcripts were thematically analysed to determine the barriers based on the Systems Engineering Initiative for Patient Safety framework. Key barriers include the need for MRI operation skills, procedural complexities in patient handling, space constraints, and the need for training and policy development. Potential solutions are suggested to mitigate these barriers. The findings can facilitate implementing MRI systems in ambulances to expedite stroke treatment.

Evaluation of antimicrobial stewardship implementation in elective surgery in dr Cipto Mangunkusumo General Hospital using Gyssens Method

Introduction. Nowadays, surgical site infections (SSI) remain the most common complication of surgical procedures. In prevention, prophylactic antibiotics are the first option, which leads to the high use of antibiotics. However, antibiotic administration should be based on strategies such as stewardship. Thus, the study aimed to assess the situation using Gyssens' method. Method. A retrospective cohort study analyzed the antibiotic administration of most major elective surgeries, including thyroidectomy, mastectomy, and cholecystectomy, proceeded in Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia, from January to July 2023. Indication, type, dosage, timing, interval, duration, and route of administration were the variables of interest. Results. Of 191 subjects who underwent the most common elective surgery procedures, 30 used combination antibiotics. Gyssens category 0 consists of 165 subjects (86.5%), and 11 subjects (5.8%) were classified as category IIA, indicating inappropriate dose (inadequate, insufficient). Inaccuracies were identified as mistimed administration (5.8%), less effective antibiotic selection (3.1%), incorrect dosage (2.6%), and inappropriate timing (2.1%). The association of Gyssens categories with SSIs showed a p-value of &gt; 0.05 with an odds ratio of 1, indicating that both appropriate and inappropriate antibiotics of the Gyssens category showed no impact on SSIs or non–SSIs. Conclusion. The adherence to antimicrobial stewardship in the most common elective surgery in the Department of Surgery, dr. Cipto Mangunkusumo General Hospital was 86.4 and subjected to improvement.

Androgen deprivation therapy in advanced prostate cancer: insights from a real-world patient survey on health-related quality of life and information and communication sources.

Androgen deprivation therapy (ADT) is a cornerstone treatment for advanced and metastatic prostate cancer. Real-world and patient-reported insights into ADT's impact on health-related quality of life (HRQoL) and communication experiences in healthcare settings remain underexplored. This patient organisation-initiated online survey aimed to assess these aspects. Between December 2022 and August 2023, the patient organisation Think Blue Vlaanderen and the AZ Sint-Jan Hospital (Bruges, Belgium) invited ADT-treated patients to participate in a prospective, online, cross-sectional, patient-reported outcome survey. Demographic, clinical, HRQoL (FACT and EPIC-26), communication sources and information modality data were collected. Descriptive statistics and comparative analyses were applied. A total of 276/312 (88.5%) participating patients were on ADT at time of survey administration and completion, with the majority receiving a 3-monthly regimen. Sexual HRQoL was low and narrowly distributed (median (IQR): 16.7 (16.7-16.7)), with 84% of patients having erectile dysfunction (ED). Patients finding their ED problematic were more likely to seek pharmaceutical treatment. Hormonal HRQoL was widely distributed (median (IQR): 65 (45-85)), which improved with prolonged ADT duration. Physically active patients reported less lack of energy, but increased hot flashes. Within consistent FACT-G summary scores (median (IQR): 64.50 (54.75-77.00)), improved emotional wellbeing with prolonged ADT was noted. Multidisciplinary communication and multimodal information provision improved patient satisfaction. Patient organisation-initiated surveys offer real-world and patient-reported insights. Patient-tailored HRQoL assessments and longitudinal follow-up, physical activity, and multidisciplinary and multimodal communication approaches are warranted to improve patient-centred care in patients receiving ADT.

Optimization of appropriate antimicrobial prophylaxis in general surgery: a prospective cohort study

BackgroundSurgical site infections (SSI) are characterized by infections occurring in the surgical incision site, organ or cavity in the postoperative period. Adherence to surgical antimicrobial prophylaxis (SAP) is paramount in mitigating the occurrence of SSIs. In this study, we aimed to evaluate the appropriateness of SAP use in patients undergoing surgical procedures in the field of general surgery according to the American Society of Health-System Pharmacists (ASHP) guideline and to determine the difference between the pre-training period (pre-TP) and the post-training period (post-TP) organized according to this guideline.MethodsIt is a single-center prospective study conducted in general surgery wards between January 2022 and May 2023, with 404 patients pre-TP and 406 patients post-TP.ResultsCefazolin emerged as the predominant agent for SAP, favored in 86.8% (703/810) of cases. Appropriate cefazolin dosage increased significantly from 41% (129 patients) in pre-TP to 92.6% (276 patients) in post-TP (p < 0.001), along with a rise in adherence to recommended timing of administration from 42.2% (133 patients) to 62.8% (187 patients) (p < 0.001). The proportion of patients receiving antibiotics during hospitalization in the ward postoperatively decreased post-TP (21–14.3%; p = 0.012), as did antibiotic prescription at discharge (16.8–10.3%; p = 0.008). The incidence of SSI showed a slight increase from 9.9% in pre-TP to 13.3% in post-TP (p = 0.131).ConclusionsRoutine training sessions for surgeons emerged as crucial strategies to optimize patient care and enhance SAP compliance rates, particularly given the burden of clinical responsibilities faced by surgical teams.

In-situ gel injection of poloxamer-based metamizole provides long-acting antipyretic effects.

Metamizole easily decomposes in the body and has a short action time and low bioavailability. Hence, frequent injection administrations are needed to maintain its plasma concentration. This study aimed to design and develop an in-situ gel based on poloxamer 407 and 188 to assess its long-acting antipyretic effects. The in-situ gel-forming systep00m with optimum sol-gel transition temperature of 35.9°C to 36.3°C could be formed using a combination of P407 at a ratio of 21-23% (w/v) and P188 at a ratio of 2-4% (w/v). In vitro erosion test showed that the in-situ gel's erosion curve and the metamizole release rate both reached about 90% at 6h, revealing a good linear relationship between the in-situ gel erosion and the drug release. In vitro release test with dialysis tube showed that the release of metamizole from the in-situ gel was remarkably slower than that from the metamizole solution. Approximately 85% of metamizole was released in the dialysis tube within 7h, implying a good sustained release effect. Pharmacodynamic study showed that the in-situ gel injection extended the action time of metamizole relative to that when using the metamizole solution. Pharmacokinetic study revealed that the in-situ gel significantly increased the blood serum half-life and area under the curve), contributing to a sustained release and improved bioavailability. This study demonstrated that in-situ gel injection could prolong the action of metamizole in the body to reduce the number of administration times and has good clinical application.

The necessity of suction drainage when intra-articular injection of tranexamic acid is used during primary total knee arthroplasty: a retrospective study

BackgroundSuction drainages are commonly used after total knee arthroplasty (TKA) procedures; however, their use is somewhat controversial. Recently, some reports have claimed that the administration of tranexamic acid (TXA) may prevent postoperative bleeding following TKAs. Although numerous studies have reported regarding different dosages, timings of administration, or drain clamping times for intravenous and intra-articular TXA injections (IA-TXAs), few have examined whether suction drainage is necessary when TXA is administered. In this study, we compared using suction drainage without TXA administration and IA-TXA without suction drainage and aimed to examine the need for suction drainage during IA-TXA.MethodsThis retrospective study was conducted on 217 patients who had received TKA for osteoarthritis; 104 were placed on suction drainage after TKA without TXA (Group A), whereas the remaining 113 received IA-TXA immediately after surgery without suction drainage (Group B). Our clinical evaluation included assessments of the need for transfusion, presence of postoperative complications, incidence of deep vein thrombosis (DVT), and changes in hemoglobin (Hb), hematocrit (Hct), and D-dimer levels.ResultsNo significant differences were observed in terms of postoperative complications and preoperative Hb, Hct, or D-dimer levels between the two groups. Although the prevalence of DVT was significantly higher in Group B (p < 0.05), all cases were asymptomatic. Hb and Hct levels were significantly lower in Group A than in Group B at 1, 3, 7, and 14 days postoperatively (p < 0.05), although none of the cases required blood transfusions. D-dimer levels were significantly higher in Group A than in Group B at 1 and 3 days postoperatively (p < 0.05).ConclusionSuction drainage might not be necessary when IA-TXA is administered after TKA procedures.

An Examination of WAIS-IV Digit Span Performance Inconsistency as a Novel Embedded Performance Validity Test Among Adults Clinically Referred for Attention-Deficit/Hyperactivity Disorder

Embedded performance validity tests (PVTs), like Digit Span PVTs from Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV), offer a valuable means of evaluating validity without extending administration time. This study investigated the utility of novel indices of performance inconsistency for WAIS-IV Digit Span (DS IRs) in the detection of invalid performance among 705 adults referred for ADHD evaluation. Results showed DS IR indices were inadequate in classifying overall validity status (areas under the curve = 0.52–0.59). Predictably, four established Digit Span PVTs effectively distinguished between valid and invalid performance score groups (areas under the curve = 0.74–0.78) with 32–49% sensitivity and 86–93% specificity at optimal cut-scores. Overall, individuals with noncredible performance scores did not differ significantly from those with valid scores regarding performance inconsistency on WAIS-IV Digit Span.