Adverse Reactions In Patients Research Articles

Impact of Antibiotic on Efficacy and Adverse Reactions of Chemoimmunotherapy in Non‐small Cell Lung Cancer Patients: A Retrospective Cohort Study

ABSTRACTBackgroundThis study aimed to evaluate the impact of antibiotic exposure on efficacy and adverse reactions in non‐small cell lung cancer (NSCLC) patients receiving chemoimmunotherapy, and to explore any specific associations on the basis of antibiotic class.MethodsA retrospective study was conducted on NSCLC patients who received chemoimmunotherapy in two Shandong hospitals between January 2018 and October 2023. The association between antibiotic exposure and progression‐free survival (PFS), overall survival (OS), objective response rate (ORR) and incidence of immune related adverse reactions (irAE) of patients were evaluated.ResultsOf the 316 patients, 134 (42.41%) received antibiotics (ATB group), and 182 (57.59%) did not (N‐ATB group). There was no significant difference in PFS (aHR = 1.009, 95% CI: 0.770–1.323; p = 0.946) or OS (aHR = 1.420, 95% CI: 0.986–2.047; p = 0.060) between ATB and N‐ATB groups. The impact on efficacy was related to the type of antibiotic. β‐Lactams (aHR = 1.737, 95% CI: 1.148–2.629; p = 0.009), in particular β‐lactam/β‐lactamase inhibitor combinations (BLBLIs) (aHR = 1.885, 95% CI: 1.207–2.944, p = 0.005) were associated with poorer OS. However, quinolones (aHR = 1.192, 95% CI: 0.861–1.650; p = 0.291) were not associated with OS. The incidence of irAEs was not significantly different between ATB and N‐ATB groups (p = 0.073), but was higher with BLBLIs (p = 0.013).ConclusionsIn NSCLC patients receiving chemoimmunotherapy, no significant difference was observed in efficacy and incidence of irAEs between the ATB and the n‐ATB groups. In antibiotic class analysis, β‐lactams and specifically BLBLIs were observed to be associated with worse OS.

Factors Inducing Cutaneous Adverse Reactions in Cancer Patients Treated with PD-1 and PD-L1 Inhibitors: A Machine-Learning Algorithm Approach

Immune checkpoint inhibitors (ICIs) show promise in cancer treatment but can lead to immune-related adverse events (irAEs), notably affecting the skin. Understanding the factors behind these skin reactions is crucial for effective management during treatment. Hence, the aim of this study was to uncover associations between patient characteristics and cutaneous adverse reactions among cancer patients undergoing ICI treatment. The study involved 209 cancer patients receiving ICIs. Statistical methods, including the chi-square test, Fisher's exact test, and multivariable logistic regression, were employed to analyze variables such as hypertension, antihistamine use, cancer metastasis, diabetes, and opioid usage. Additionally, machine learning techniques, including logistic regression, elastic net, random forest, and support vector machines (SVM), were utilized to develop predictive models anticipating skin-related adverse events. Results highlighted significant associations between specific patient attributes and the incidence of skin reactions post-ICI treatment. Notably, patients using antihistamines or with cancer metastasis exhibited higher rates of skin adverse reactions, while those with diabetes or using opioids displayed lower incidence rates. Robust performance in forecasting these adverse events was observed, particularly in the predictive models employing logistic regression and elastic net. This pioneering study contributes crucial insights into predictive modeling for ICI-induced skin reactions, emphasizing the importance of personalized treatment strategies. By identifying risk factors and utilizing tailored predictive models, healthcare providers can proactively manage adverse events, optimizing the benefits of ICIs while mitigating potential side effects.

Use of esketamine for tracheoscopic drug injection: a randomized controlled trial.

Sufentanil may induce hypotensive bradycardia and other adverse reactions in elderly patients during anesthesia, while esketamine exhibits sedative and analgesic effects with minimal impact on respiration and circulation. The objective of this study was to investigate the impact of these two anesthetics on vital signs in patients undergoing bronchoscopy and lavage under general anesthesia. This study was a randomized controlled trial with a parallel design. A total of 100 patients aged ≥60 years with ASAI or II who were undergoing bronchoscopy and lavage were randomly assigned to two groups: group A (esketamine, n = 50) and group B (sufentanil, n = 50). During anesthesia induction, both groups received intravenous infusion of propofol at a dose of 1.5 mL/kg and atracurium. In group A, esketamine at a dose of 0.3 mg/kg was injected; in group B, sufentanil at a dose of 0.2 μg/kg was injected intravenously. Subsequently, a laryngeal mask was inserted and connected to an anesthesia machine for mechanical ventilation. Anesthesia maintenance involved continuous intravenous infusion of propofol at a dose of 3 mL/kg. The mean arterial pressure (MAP), heart rate (HR), and blood oxygen saturation (SpO2) were recorded at various time points: before anesthesia injection (T0), after laryngeal mask insertion (T1), 5 min after the operation started (T2), 15 min after the operation started (T3), and before the end of the operation (T4). Additionally, the recovery time was recorded. The blood pressure of patients in the esketamine group exhibited higher levels compared to those in the sufentanil group at multiple time points during the operation, while maintaining a more stable intraoperative blood pressure and shorter postoperative recovery time than that observed in the sufentanil group. The blood pressure and heart rate of patients in the esketamine group exhibited significant fluctuations after laryngeal mask implantation compared to pre-anesthesia induction, with a statistically significant increase observed. Conversely, no significant changes were observed in the sufentanil group. The heart rate and oxygen saturation showed no significant differences between the two groups, nor did the amount of propofol administered during the procedure. The utilization of esketamine during the induction phase of bronchoscopy and lavage under general anesthesia can enhance hemodynamic stability and reduce the occurrence of hypotension, thereby facilitating postoperative anesthetic recovery.

A case report of adolescent lactation due to the drug blonanserin

BackgroundSecond-generation antipsychotic drugs are increasingly used to treat depressive disorders with psychotic symptoms. In addition to effectively managing psychotic symptoms, second-generation antipsychotics can also result in adverse drug reactions in patients, which should not be underestimated.Case presentationWe report the case of 14 years old unmarried female patient with depression. At first, she started with moping and gradually developed into self-injury and whispering. After antidepressant treatment combined with the second-generation antipsychotic drug blonanserin, the patient’s psychotic and depressive symptoms improved significantly, while the patient developed lactation, which stopped after the medication was changed.ConclusionsAlthough Blonanserin’s clinical trials have reported rare adverse reactions like elevated prolactin levels and even lactation, caution is still needed in clinical application of the drug. This case is expected to improve psychiatrists’ choice of antidepressant therapy in combination with antipsychotic drugs.

Substituting with alternativeiodinated contrast medium to prevent recurrent adverse drug reactions associated with its use: a meta-analysis.

To systematically review and meta-analyze the recurrent rate of iodinated contrast medium (ICM)-associated adverse drug reactions (ADRs) and the preventive effect of using alternative ICM lacking a common carbamoyl side chain. A systematic literature search was conducted in the MEDLINE and EMBASE databases to identify studies that investigated the recurrence rate of ICM-associated ADRs or hypersensitivity reactions (HSRs). Studies that included patients who subsequently underwent contrast-enhanced computed tomography scans after their index reactions were included, while studies with overlapping cohorts were excluded. The first search was conducted on November 10, 2023. The pooled recurrence rate of ICM-associated ADR was determined using the DerSimonian-Laird random-effects model. Subgroup analyses were also conducted based on the substitution of ICM, with particular consideration given to the N-(2,3-dihydroxypropyl) carbamoyl side chain. A total of ten original articles were included in the analysis, collectively spanning from June 2001 to March 2021. The pooled recurrence rate of ICM-associated ADR was not significantly different from that of ICM-associated HSR (16.6% [95% CI, 7.8-31.9%] vs. 15.5% [95% CI, 10.8-21.8%], p = 0.87). In the subgroup analyses, the pooled odds ratio for ICM-associated recurrent ADR when using a different ICM compared with using the same ICM was 0.31 (95% CI, 0.21-0.45), which means a 69% reduction. Moreover, the pooled odds ratio for ICM-associated recurrent ADR when substituting ICMs with different side chains compared with substituting with common side chains was 0.65 (95% CI, 0.52-0.82), which means an additional 35% reduction. Substituting with an alternative ICM led to a 69% reduction in recurrent ADRs, with an additional 35% reduction observed when using ICM lacking a common carbamoyl side chain. Question No standardized guidelines exist for replacing previously used iodinated contrast medium (ICM) to prevent recurrent adverse reactions. Findings Using alternative contrast medium with a different carbamoyl side chain prevents adverse drug reactions effectively. Clinical relevance This study advocates using alternative ICM without a common carbamoyl side chain to prevent recurrent adverse drug reactions in patients with a history of such events.

Association between trough plasma voriconazole concentration and adverse drug reactions in elderly patients.

Only limited data are available on trough plasma voriconazole concentration in elderly patients. This study aimed to assess the association between voriconazole concentration and adverse drug reactions (ADR). A retrospective analysis was conducted to investigate the correlation between voriconazole trough concentration and adverse reactions among elderly patients admitted between October 1, 2017, and September 30, 2020. In total 147 patients were included in this study, with 248 measurements of voriconazole concentrations available. ADR occurred in 75 patients after drug therapy, with liver injury showing the highest incidence (n = 37, 49.33%), followed by hypokalemia (n = 27, 36%), and neurological disorder (n = 20, 26.67%). 121 measurements (48.79%) in 82 patients (55.78%) showed that the monitored trough concentration did not match the occurrence of ADR, mainly including hyponatremia, hypokalemia, liver injury, and kidney injury. The accuracy of predicting the trough concentration of voriconazole as recommended by current guidelines for elderly patients might be limited. Consequently, it is advisable to establish a tailored treatment range of voriconazole concentration specifically catered to this patient demographic.

Effectiveness of Antileishmanial Treatments in Three Endemic Areas of Colombia: A Community-Based Cohort Study.

The effectiveness of treatment of cutaneous leishmaniasis (CL) in rural settings remains underexplored. This study assessed the effectiveness of standard antileishmanial treatments using a community-based approach supported by mobile health (mHealth) in three rural areas of Colombia. From January 2018 to September 2021, we assessed treatment outcomes, adherence, and adverse drug reactions in CL patients, with the support of the Guaral+ST app. Treatment decisions were made by providers at health facilities at each site in accordance with national guidelines, whereas treatment follow-up and presumptive case identification were made by trained community leaders and health agents at the community level. In total, 231 participants received antileishmanial treatment (63 received miltefosine, 110 meglumine antimoniate, and 58 pentamidine). Disease presentation was mild (median number of lesions = 1, interquartile range [IQR]: 1-2) and of short duration (1.5 months, IQR: 1-3). The strategy yielded information on the therapeutic outcomes in 81% of study participants. Effectiveness, measured as the proportion of cure at 90 to 180 days, was 86.3% (95% CI: 73.3-93.48) for miltefosine; 77.6% (67.5-85.3) for meglumine antimoniate, and 73.1% (59.0-83.6) for pentamidine. The effectiveness of pentamidine in children ≤10 years old was 79.4% (61.6-90.3). This is one of the few reports of effectiveness of pentamidine in children with prospective data collection in the Americas. Adverse drug reactions occurred in 32% of patients, most frequently with meglumine antimoniate. Our findings demonstrate that standard antileishmanial treatments are effective in rural areas where the disease is endemic and that mHealth has a pivotal role in improving patient follow-up and data collection on therapeutic outcomes.

Association between exposure to proton pump inhibitors and delirium: a descriptive and disproportionality analysis of VigiBase

ObjectivesProton pump inhibitor (PPI) exposure can lead to hyponatraemia, which is a common cause of delirium. An association between PPI exposure and delirium without hyponatraemia has been suggested in the...

Impact of medication reconciliation and medication reviews on the incidence of preventable adverse drug reactions during hospitalization of elderly patients. A randomized controlled trial.

Background: Of all adverse drug reactions, 35-45% are due to medication errors and would therefore be preventable. Thus, it is essential to implement effective strategies to prevent medication errors. However, it remains unclear whether medication reviews provide an additional benefit compared to medication reconciliation regarding medication safety. Aim: The present study aimed to evaluate whether medication reconciliation and medication reviews affect the incidence of preventable adverse drug reactions in elderly patients. Method: Non-elective patients 65 years and above admitted to the hospital, taking at least one high-risk drug, were eligible for participation in a three-armed randomized controlled trial. One group went through the medication reconciliation process, a second group received a comprehensive medication review, including medication reconciliation, and the third group did not receive any pharmaceutical intervention (control group). The incidence of preventable adverse drug reactions during hospitalization was set as the primary endpoint. The severity of the preventable adverse drug reactions and the number and clinical relevance of drug-related problems and discrepancies were defined as secondary endpoints. Results: In 207 patients, 74 preventable adverse drug reactions were detected. Neither medication reconciliation nor medication reviews showed a significant impact on the incidence of preventable adverse drug reactions compared to the control group. However, medication reviews significantly reduced the severity of preventable adverse drug reactions (p=0.017). Conclusion: The current study results suggest that medication reviews may have an impact on a clinically relevant outcome by reducing the severity of preventable adverse drug reactions. A significant impact of medication reconciliation on clinically relevant outcomes could not be demonstrated. Based on the results of this study, when deciding on a pharmaceutical intervention comprehensive medication reviews should be preferred over sole medication reconciliation whenever possible.

Gauging Expert Perspectives: A Survey on AI Integration in Pharmacovigilance

Abstract: The ever-growing landscape of drug safety monitoring demands innovative solutions. This paper explores how Artificial Intelligence (AI) can revolutionize pharmacovigilance by enhancing patient safety and enabling personalized medicine. A survey conducted by the author indicates a positive outlook on AI's potential in this field. AI excels at analysing vast data sources, leading to improved detection of subtle safety signals and emerging drug safety concerns. Additionally, AI-powered risk prediction allows for personalized treatment strategies, minimizing adverse drug reactions for individual patients. Furthermore, AI facilitates efficient literature mining and drug repurposing, accelerating drug discovery processes. While the potential benefits are significant, responsible implementation is crucial. Addressing potential biases in algorithms and ensuring data privacy and security remain critical considerations. Overall, AI holds immense promise for the future of pharmacovigilance, paving the way for a more efficient, accurate, and proactive system for safeguarding patient well-being.

Preliminary antifibrotic and vasoconstrictor effects of adrenaline in Schlemm's canal and suprachoroidal minimally invasive glaucoma surgery in primary open-angle glaucoma.

To investigate the antifibrotic and vasoconstrictor effects of adrenaline in Schlemm's canal and suprachoroidal minimally invasive glaucoma surgery (MIGS). Human trabecular meshwork (TM) cells were treated with different concentrations of adrenaline (0%, 0.0005%, 0.01%), and we measured the effects on contractility, cell viability and the expression of key cell cycle and fibrosis genes. Adrenaline 0.05% was also injected intracamerally in five primary open-angle glaucoma patients undergoing iStent inject or MINIject surgery combined with phacoemulsification. All patients were assessed for ocular and systemic adverse reactions, including the effects on intraoperative pupil size, preoperative and postoperative visual acuity, intraocular pressure, and anterior segment OCT results. Adrenaline significantly reduced the contractility of TM cells in a dose-dependent manner (87.8%, 80.6%, 7.9% matrix contraction with adrenaline 0%, 0.0005%, 0.01%, respectively). Adrenaline did not exhibit any significant cytotoxicity even at high concentrations (P > 0.05). Adrenaline 0.01% significantly downregulated the expression of key cell cycle genes in the G2 and M phases, and also decreased the expression of MRTFB and ACTA2 genes (P < 0.05). Intracameral injections of adrenaline 0.05% in the five MIGS patients did not result in any ocular or systemic adverse effects. We recommend intracameral injections of adrenaline 0.05% as a cheap and safe drug to be used before MIGS insertion. Adrenaline decreases the risk of bleeding from the trabecular meshwork and also exhibits antifibrotic effects by arresting the cell cycle, thereby increasing the postoperative success rates in MIGS. What is known Fibrosis is the main cause of surgical failure in minimally invasive glaucoma surgery (MIGS). Mitomycin-C and 5-fluorouracil are too toxic to be used inside the eye. What is new Adrenaline reduced the contractility of trabecular meshwork cells and inhibited the expression of key cell cycle genes and fibrosis genes, without significant cytotoxicity. Intracameral injection of adrenaline 0.05% did not result in any ocular or systemic adverse reactions in MIGS patients.

Effects of different treatment measures on the efficacy of diabetic foot ulcers: a network meta-analysis.

Through a network meta-analysis, we compared different treatment measures for patients with diabetic foot ulcers (DFU), assessing their impact on the healing of DFU and ranking them accordingly. We searched the PubMed, the China National Knowledge Infrastructure (CNKI), Embase, the WanFang and the WeiPu database. The retrieval time was from database establishment to January 2024, and retrieval entailed subject and free words. Randomized controlled trials (RCTs) with different treatment measures for DFU were included. Data extraction and evaluation were based on the PRISMA guidelines. Meta-analyses using pairwise and network methods were employed to compare and rank the effectiveness of different treatments for DFU. Ultimately, we included 57 RCTs involving a total of 4,826 patients with DFU. When it comes to ulcer healing rates, compared to standard of care(SOC),platelet-rich plasma(PRP), hyperbaric oxygen therapy(HBOT), topical oxygen therapy(TOT), acellular dermal matrix(ADM), and stem cells(SCs) in both direct meta-analysis(DMA) and network meta-analysis(NMA) can effectively increase the complete healing rate. For Scs+PRP, a statistically significant improvement was only observed in the NMA. Moreover, when compared to the negative pressure wound therapy(NPWT) group, the PRP+NPWT group was more effective in promoting the complete healing of ulcers. In terms of promoting the reduction of ulcer area, no statistical differences were observed among various treatment measures. When it comes to ulcer healing time, both PRP and NPWT can effectively shorten the healing time compared to SOC. Furthermore, when compared to the NPWT group, the combined treatment of PRP and ultrasonic debridement(UD) with NPWT is more effective in reducing healing time. In terms of amputation rates and adverse reactions, the PRP group effectively reduced the amputation rate and adverse reactions for patients with DFU. Additionally, compared to the NPWT group, the combined treatment of PRP and UD with NPWT reduced the incidence of adverse reactions. However, no significant differences were observed among other treatment measures in terms of amputation rates and adverse reactions. The ranking results showed that the efficacy of PRP+NPWT and UD+NPWT in promoting ulcer healing, reducing ulcer area, shortening healing time, decreasing amputation rates and adverse reactions is superior to that of the alone PRP group, NPWT group, and UD group. Conversely, the SOC group demonstrates the least effective performance in all aspects. Due to the particularity of the wound of DFU, the standard of care is not effective, but the new treatment scheme has a remarkable effect in many aspects. And the treatment of DFU is not a single choice, combined with a variety of methods often achieve better efficacy, and will not bring more adverse reactions.

Opioid-free anesthesia attenuates perioperative immunosuppression by regulating macrophages polarization in gastric cancer patients treated with neoadjuvant PD-1 inhibitor.

Opioid anesthesia can modulate the impaired immune response and opioid-sparing anesthesia may preserve immune functions. This study was performed to assess the effects of opioid-free anesthesia (OFA) and opioid-based anesthesia (OA) on perioperative macrophages differentiation, cytokine changes, and perioperative complications in locally advanced GC (LAGC) patients. We used quality of recovery-15 (QoR-15) questionnaire scores and visual analog scale (VAS) scores to compare postoperative quality of recovery and pain level. In addition, the adverse reactions of patients in the two groups were compared. The perioperative serum level of inflammatory cytokines and the ratio of macrophage subtypes were detected. The OFA group had significantly longer extubation time and PACU stay, whereas the OA group had significantly higher rate of hypotension, higher doses of norepinephrine, higher PONV and dizziness rate, and delayed flatus passage time. The QoR-15 score on postoperative 24 h was significantly higher in OFA group than in OA group. At the end of or after the surgery, the OFA group had higher levels of interleukin (IL)-12, IL-1β, tumor necrosis factor (TNF)-α, CD68+CD163- macrophage rate, but lower levels of IL-10, transforming growth factor (TGF)-β, and CD68+CD163+ macrophage rate, indicating OFA attenuated perioperative immunosuppression by diminishing M2 and promoting M1 macrophage polarization. And the reversal tendency is more obvious in LAGC patients with neoadjuvant PD-1 inhibitor. The OFA may attenuate perioperative immunosuppression by diminishing M2 and promoting M1 macrophage polarization in LAGC patients with neoadjuvant PD-1 inhibitor. http://gcpgl.sysucc.org.cn, identifier 2022-FXY-001.

Clinical Value of ABCB1 and PAI-1 Gene Polymorphisms in Predicting Glucocorticoid-induced Adverse Reactions in Nephrotic Syndrome Patients.

Glucocorticoid (GC)-induced adverse reactions (ARs) have been extensively studied due to their potential impact on patients' health. This study aimed to examine the potential correlation between two polymorphisms [adenosine triphosphate-binding cassette B1 (ABCB1) C3435T and plasminogen activator inhibitor-1 (PAI-1) 4G/5G] and various GC-induced ARs in nephrotic syndrome (NS) patients. In this study, 513 NS patients who underwent GC treatment were enrolled. Then, the patients were divided into two groups based on ABCB1 C3435T and PAI-1 4G/5G genotyping, and intergroup comparisons of clinicopathological data and GC-induced ARs were performed. Univariate and multivariate logistic analyses were subsequently conducted to identify potential risk factors for GC-induced ARs, and a nomogram was subsequently established and validated via the area under the ROC curve (AUC), calibration curve and decision curve analysis (DCA). We identified ABCB1 C3435T as an independent risk factor for the development of steroid-associated avascular necrosis of the femoral head (SANFH) (OR: 2.191, 95% CI: 1.258-3.813, P=0.006) but not as a risk factor for the occurrence of steroid diabetes mellitus (S-DM). On the other hand, PAI-1 4G/5G was identified as an independent risk factor for the development of both SANFH (OR: 2.198, 95% CI: 1.267-3.812, P=0.005) and S-DM (OR: 2.080, 95% CI: 1.166-3.711, P=0.013). Notably, no significant correlation was found between the two gene polymorphisms and other GC-induced ARs. In addition, two nomograms were established and validated to demonstrate strong calibration capability and clinical utility. Assessing ABCB1 C3435T and PAI-1 4G/5G before steroid treatment in NS patients could be useful for identifying patients at a high risk of developing SANFH and S-DM.

Study on the clinical efficacy of 14-day vonoprazan-based triple regimen in obese patients with Helicobacter pylori infection

The effectiveness of vonoprazan (VPZ)-based regimens in enhancing Helicobacter pylori (HP) eradication rates is promising. This study evaluated the clinical efficacy of 14-day VPZ-based triple therapy in obese patients infected with HP. A total of 200 obese patients with gastric disorders, confirmed to be HP-positive via gastroscopy and the 13C urea breath test, were retrospectively analyzed. Among them, 118 patients received the 14-day VPZ-based triple regimen (Study group), while 82 patients were treated with the traditional 14-day bismuth-containing proton pump inhibitor-based quadruple regimen (Control group). Baseline characteristics, pretreatment inflammatory indicators, lipid profiles, and gastrointestinal function indicators recorded. The two groups were compared for treatment efficacy, HP eradication rate, gastrointestinal function improvement, and incidence of adverse reactions. The Study group demonstrated a higher overall effective rate compared to the Control group, particularly in HP-strong positive obese patients. No significant differences were observed between the two groups for HP-positive obese patients in terms of total effective rate, HP eradication rate, gastrointestinal function improvement, or adverse reactions incidence. In conclusion, the 14-day VPZ-based triple regimen exhibited superior therapeutic efficacy, higher HP eradication rates, enhanced gastrointestinal function, and reduced adverse reactions in HP-strong positive obese patients, indicating improved overall efficacy and safety.

New findings on the incidence and management of CNS adverse reactions in ALK-positive NSCLC with lorlatinib treatment

To explore the presentation and control of CNS adverse reactions in patients with ALK-positive NSCLC treated with lorlatinib. This study includes a retrospective case report from Sir Run Run Shaw Hospital on a lorlatinib-treated patient with CNS adverse reactions and a systematic literature review of similar cases until January 2023. The report detailed a case of a 74-year-old male with Grade III CNS adverse reactions 25 days after starting lorlatinib, which were reversible with dose modification and pharmacotherapy. The review indicated a 19.39% occurrence rate of such reactions, with a 17% improvement rate post-dose adjustment. CNS adverse reactions frequently occur in ALK-positive NSCLC patients on lorlatinib, yet they are reversible with appropriate management. Research should continue to optimize treatment protocols to decrease these reactions' frequency.

Assessment of Adverse Drug Reactions in Geriatric Patients Admitted to a Tertiary Care Teaching Hospital in South India

Assessment of Adverse Drug Reactions in Geriatric Patients Admitted to a Tertiary Care Teaching Hospital in South India

Simulation-based assessment of zwitterionic pendant group variations on the hemocompatibility of polyethersulfone membranes

In the realm of hemodialysis, Polyethersulfone (PES) membranes dominate due to their exceptional stability and mechanical properties, capturing 93% of the market. Despite their widespread usage, the hydrophobic nature of PES introduces complications in hemodialysis, potentially leading to severe adverse reactions in patients with end-stage renal disease (ESRD) through protein fouling. Addressing this issue, our study focused on enhancing hemocompatibility by modifying PES surfaces with zwitterionic materials, known for their hydrophilicity and biological membrane compatibility. We investigated the functionalization of PES membranes utilizing various zwitterions in different ratios. Utilizing molecular docking, we examined the interactions of three zwitterionic ligands—carboxybetaine methacrylate (CBMA), sulfobetaine methacrylate (SBMA), and (2-(methacryloyloxy)ethyl) phosphorylcholine (MPC)—with human serum proteins. Our analysis revealed that a 1:1 ratio of phosphobetaine and sulfobetaine exhibits the lowest affinity energy towards serum proteins, denoting an optimal hemocompatibility without the limitations associated with increased zwitterion ratios. This pivotal finding offers a new pathway for developing more efficient and safer hemodialysis membranes, promising improved care for ESRD patients.

Effect of a subanesthetic dose of esketamine combined with propofol on postoperative fatigue syndrome in patients undergoing gastroenterological endoscopy under anaesthesia: A retrospective study.

To assess the effect of subanesthetic dose of esketamine in combination with propofol on the incidence of postoperative fatigue syndrome (POFS) in patients who underwent gastroenterological endoscopy under anaesthesia. Clinical data of 160 patients who underwent gastroenterological endoscopy under anaesthesia in Huzhou Maternity & Child Health Care Hospital from January to December 2022, ASA Grade- I and II, were retrospectively selected. According to the records, patients were grouped based on the administered anesthetic. Patients who received 0.2 mg/kg of esketamine and 2~2.5mg/kg of propofol comprised Group-E, and patients who were administered one μg/kg of fentanyl and 2 - 2.5mg/kg of propofol comprised Group-F. Mean arterial pressure (MAP), oxygen saturation (SpO2) and heart rate (HR) were recorded before the operation (T0), after anesthesia (T1), three minutes after the gastroscope was inserted (T2), five minutes after the colonoscope was inserted (T3) and at the end of the operation (T4). Operating time, recovery time, propofol dosage and incidence of adverse reactions in the two groups were recorded. The Christensen scores and the incidence of POFS of all patients on Day-I before operation and 1st, 3rd, and 5th days after the operation were recorded. Compared with T0, MAP, SpO2 and HR in both groups of patients decreased at T1, T2, T3 and T4 (P<0.05). MAP, SpO2 and HR of patients in Group-E were significantly higher compared to Group-F at T1, T2, T3 and T4 (P<0.05). Compared with Group-F, the recovery time, intraoperative bradycardia and respiratory depression in Group-E were significantly lower (P<0.05), and Christensen scores and the incidence of POFS decreased significantly on the 1st, 3rd, and 5th day after the operation (P<0.05). Subanesthetic dose of esketamine combined with propofol can reduce POFS and postoperative adverse reactions in patients undergoing gastroenterological endoscopy.

Clinical Effect of Norepinephrine Combined with Esmolol Treatment in Patients with Septic Shock and Its Impact on Prognosis.

To unveil the influence of norepinephrine (NE) combined with esmolol treatment on cardiac function, hemodynamics, inflammatory factor levels, and prognosis in patients with septic shock. Ninety-six patients with septic shock admitted to our hospital from January 2021 to June 2023 were retrospectively analyzed and divided into the control and observation groups according to the different treatment methods. The control group was treated with standard anti-infection and fluid resuscitation, followed by NE administration [with an infusion rate of 0.1-0.5 μg/(kg-min)]. The observation group was treated with esmolol [starting pumping rate of 50 μg/(kg-min) and adjusting the pumping rate according to the target heart rate] in combination with the control group. Changes in hemodynamic parameters, including heart rate, mean arterial pressure, central venous pressure, cardiac index, stroke volume index, and systemic vascular resistance index, were monitored by pulse-indicating continuous cardiac output monitors before treatment (T0), 24h after treatment (T1), and 72h after treatment (T2); changes in cardiac function before and after 72h of treatment, indicators of inflammatory factors before and after treatment, and indicators of oxygenation metabolism were assessed; and adverse drug reactions during treatment were recorded in both groups. NE combined with esmolol treatment improved the efficacy of patients with septic shock; was beneficial for the enhancement of blood perfusion in patients; improved the patient's cardiac function, reduced myocardial injury, and suppressed the inflammatory response in patients; improved the oxygenation metabolism and the prognosis of patients; did not significantly increase the adverse drug reactions of patients and had a better safety profile. NE combined with esmolol treatment can improve the efficacy of patients with septic shock, improve their cardiac function and hemodynamic indices, reduce myocardial injury and inflammatory response, and have a better safety profile, which is conducive to improving patient prognosis and reducing mortality.