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Abhyuday Kumar Neeraj Kumar Dharani Lenin Amarjeet Kumar Shaheen Ahmad 《Indian Journal of Critical Care Medicine》2021,25(4):474
How to cite this article: Kumar A, Kumar N, Lenin D, Kumar A, Ahmad S. Second-degree Heart Block Caused by Itolizumab-induced Infusion Reaction in COVID-19. Indian J Crit Care Med 2021;25(4):474–475.Sir,Itolizumab, an anti-CD6 humanized IgG1 monoclonal antibody, binds to domain-1 of CD-6 that is responsible for priming, activation, and differentiation of T-cells.[1] It significantly reduces T-cell proliferation along with substantial downregulation of the production of cytokines/chemokines.1 It was approved for moderate to severe chronic plaque psoriasis in 2013. However, it has recently been approved by the Drug Controller General of India for emergency use in India for the treatment of cytokine release syndrome in moderate to severe acute respiratory distress syndrome patients due to COVID-19.2 Here, we report a case of life-threatening infusion-related hypersensitivity reaction of itolizumab.A 65-year-old male COVID-19 patient got admitted to the intensive care unit (ICU) with complaints of shortness of breath and cough without any history of known disease. However, the baseline electrocardiogram (ECG) done in the ICU was suggestive of left bundle branch block (LBBB) (Fig. 1A). The patient was supported through noninvasive ventilation (NIV) and was started on remdesivir, dexamethasone, low-molecular-weight heparin, antibiotics, and other supportive treatment as per our institutional standard protocol. The patient was maintaining on continuous positive airway pressure mode of NIV with a fraction of inspired oxygen (FiO2) of 0.5 on the third day of ICU admission. Among the laboratory markers, the total leucocyte counts were raised (12,000/μL) with decreased lymphocytes (3.2%) and increased inflammatory markers (CRP, 320 mg/L; D dimer >20 μg/mL; LDH, 1694 U/L; IL6, 329 pg/mL). Serum electrolytes, renal function tests, liver function tests, and arterial blood gases were within acceptable limits. The patient was hemodynamically stable with a respiratory rate of 30 to 35/minute and a PO2/FiO2 ratio of 140. After taking informed written consent, inj. itolizumab was planned in this patient because of the increasing severity of the disease along with increased inflammatory markers. Inj. hydrocortisone 100 mg IV and inj. pheniramine 30 mg IV were given 30 minutes before itolizumab infusion. And 100 mg of itolizumab (Alzumab-L, Biocon Biologics) was diluted to 250 mL with normal saline and was started at 25 mL/hour. After about 20 minutes of infusion, the patient started complaining of shivering, sweating, and impending doom. The patient had sudden bronchospasm, and oxygen saturation dropped to 90%. ECG showed second-degree AV nodal block with an increased blood pressure of 180/110 mm Hg (Fig. 1B). The drug was immediately withdrawn and the patient was given a repeat dose of hydrocortisone and pheniramine along with other supportive measures. After sometime patients became alert and their respiratory symptoms were relieved. However, the second-degree heart block in ECG was persistent. ECHO was normal and troponin I was within normal limits while there was a slight increase in CPK-MB. The patient was observed closely and the ECG reverted to its previous state only after 24 hours. The patient was weaned from the ventilator in due course of time and put on face mask on the eighth day of stay.Open in a separate windowFigs 1A and B(A) Baseline ECG showing LBBB; (B) ECG showing second-degree AV nodal block after infusion reactionMost infusion reactions related to monoclonal antibodies are IgE mediated and are mild (grade 1 or 2) in nature.3 The incidence of severe (grade 3 or 4) reactions is generally low. The reported infusion-related reactions to itolizumab are chills/rigors (common), nausea, flushing, urticaria, cough, hypersensitivity, pruritus, rash, wheezing, dyspnea, oxygen desaturation, dizziness, headache, and hypertension. In our case, itolizumab infusion leads to a grade 4 reaction causing a persistent second-degree heart block for about 24 hours. Among the monoclonal antibodies, rituximab is most notorious for causing infusion reactions.4 There are only a few reports of cardiac arrhythmias (monomorphic VT, supraventricular tachycardia, trigeminy, and irregular pulse) during therapeutic infusion of rituximab,5 and there is no reported case of cardiac arrhythmia during itolizumab infusion. In our case, the patient was having LBBB and was on a QT prolonging drug (remdesivir), which might be a predisposing factor for the occurrence of second-degree heart block during infusion reaction. Premedications (e.g., antipyretics, antihistamines, and steroids) are recommended before the administration of some chemotherapeutic agents and monoclonal antibodies. These drugs should never be given as IV bolus and should always be given slowly in an infusion. Baseline assessments including vital signs and cognition should be documented carefully before the start of treatment and all the emergency equipment and drugs should be kept ready. Grade 3 and 4 reactions should be managed promptly with epinephrine, antihistaminics, and steroids along with other symptomatic supportive measures. As itolizumab is approved for emergency use in COVID-19, risk-benefit ratio should be assessed before prescribing this and should be explained before taking consent for infusion.The patient provided written informed consent for the publication. 相似文献
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Strengthening routine immunization is a corner stone for countries to achieve the United Nations Millennium Development Goal 4 (MDG 4) which aims to reduce under-five mortality by two-thirds and MDG 5 improving maternal health compared to 1990 estimates by 2015. The poor urban newborns are more vulnerable to many health and nutrition problems compared to the non-poor urban counterparts. Therefore there is a need to strengthen health system to cater the needs of urban poor. Standardized WHO30*7 cluster sampling for slums and convenience sampling for construction sites. In depth interviews were conducted for user’s as well as provider’s perspective about immunization coverage. Two hundred ten children and 210 mothers were enrolled in slums and 100 were sampled from construction sites. The slum workers are considered as non-migratory groups whereas construction site workers are considered as migratory population. Among children, 23 % were fully immunized, 73 % were partially immunized and 3 % were unimmunized in non-migratory population whereas 3 % were fully immunized, 91 % were partially immunized and 6 % were unimmunized in migratory population. Among mothers, 43 and 39 % were fully immunized, 13 and 15 % partially immunized and 43 and 46 % were unimmunized in non-migratory and migratory population, respectively. The various reasons attributed for low coverage are (a) dissatisfaction of the users with the service delivery and procedural delays (bureaucracy), (b) lack of faith in health workers, (c) insistence upon ID/vaccination card/aadhar card by the health worker before vaccinating child and (d) ignorance of the need of immunization by the people and migration of the population. 相似文献
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Amarjeet Kumar 《Journal of microencapsulation》2019,36(1):83-95
The objectives of the study are to develop and characterise formulations with volatile molecules in an emulsifiable concentrate form, for their antimicrobial properties and to evaluate their efficacies against Colletotrichum gloeosporioides Penz., to control anthracnose in mangoes after harvest. Results showed EC39 and EC40 among formulations were characterised for their excellent emulsification properties, the droplet size of 192.34?±?0.48?nm and 227.4?±?0.71?nm and Zeta potential of ?52.5?±?2.76?mv and ?48.84?±?2.62?mv, respectively, with better storage stability at 10?±?20?°C and RH 80?±?5%. In vitro assay, 100% inhibition of visual spore germination by 0.15% and 0.2% MIC value for EC39 and EC40, respectively Studies on the efficacy of their fungicide properties also indicated the IC50 value of 0.161% and 0.162% for EC39 and EC40 respectively for mycelial growth inhibition. In vivo testing too, EC39 and EC40 effectively controlled anthracnose incidence in mango in a dosage-dependent manner. 相似文献
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Amarjeet Bisla Rupali Rautela Vinay Yadav Praveen Singh Abhishek Kumar Subrata Ghosh Ajay Kumar Sadhan Bag Brijesh Kumar Neeraj Srivastava 《Andrologia》2020,52(9):e13709
The study consisted of application of anti-ubiquitin antibodies (Abs)-coated iron oxide-nanoparticles (IONPs) for minimisation of oxidative stress to contemporary live spermatozoa from the raw semen. Round-shaped IONPs (12.09 ± 0.91 nm) after two-stage functionalisation (silanisation and pegylation) were conjugated with Abs. Four aliquots from each of the 24 ejaculates (4 buffalo bulls) formed Control (Group I) and treatment (II, III and IV) groups; each containing 150 ± 25 million dead/damaged spermatozoa. IONPs-Abs complex were added at ratio of 1:1 (0.5 µg/ml), 1:2 (1.0 µg/ml) and 1:4 (2.0 µg/ml), respectively, in Groups II, III and IV. The semen quality parameters showed improvement at lag-stage (post-nano-purification before processing for cryopreservation). The mean post-thaw motility (%) in Group IV was found to be greater (p < .05) than Group I. Moreover, the overall DNA integrity (%) at post-thaw stage was improved in the nano-purified semen samples. The value of malondialdehyde was greater (p < .001) in Group I than Groups II, III and IV. The mean total antioxidant capacity and superoxide dismutase (U/mg protein) activity values in Group IV was greater (p < .05) than Group I. The study results show that IONPs conjugated with anti-ubiquitin Abs at 2.0 µg/ml can be an effective dose for depletion of dead/damaged spermatozoa from buffalo ejaculates to minimise oxidative stress. 相似文献
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