Expect the Unexpected: Invasive Central Nervous System (Cns) Aspergillosis in Non-Neutropenic Patients - a Case Series of 15 Patients from India

Intro: Invasive aspergillosis of CNS is a severe form of aspergillosis & is associated with high mortality. Most of these cases are suspected & diagnosed in neutropenic patients. We hereby describe a series of 15 patients with CNS aspergillosis in non-neutropenic patients from a tertiary care hospital in India. Method(s): All patients with clinical & radiological features suggestive of CNS aspergillosis were screened for microbiological evidence of invasive aspergillosis, either by demonstration of hyphae by microscopy or histology, culture or galactomannan assay. Patients demographic details, clinical features, risk factors, diagnosis, management & outcome details were documented. Finding(s): A total of 15 patients were found to have CNS aspergillosis, 5 isolated CNS infections & 10 showing concomitant CNS & pulmonary aspergillosis in one between January 2021 to July 2022. The average age was 41.46+/-14.6y, with majority being male. Among the risk factors, most common ones were fungal sinusitis (46.6%), steroid use (40%), COVID-19 (33.3%). One patient had history of endoscopic sinus repair, another had h/o lung abscess. Most common symptoms of CNS aspergillosis were headache (73.3%), fever (60%), altered sensorium (53.3%) & seizures (47.6%). Radiologically, the common findings included ring enhancing lesion, s/o cerebral abscesses were observed in four patients. Direct microscopy s/o fungal hyphae were reported in 5 patients, with 4 culture positives. Average serum galactomannan was 1, while CSF galactomannan showed better sensitivity with mean CSF galactomannan being 2.53. Almost all patients were treated with Voriconazole based on weight, but showed high mortality of 60% even after initiation of therapy. Complete resolution were seen in only two patients, while 4 patients remaining static in improvement during 6 months follow up. Conclusion(s): Invasive CNS aspergillosis must be suspected even with nonneutropenic patients with newer emerging risk factors like steroid use, COVID-19 & h/o fungal sinusitis presenting with clinical & radiological manifestations.Copyright © 2023

Reversible parkinsonism post combined infection with COVID- 19 and typhoid

Objective: To describe a case of levo-dopa responsive parkinsonism secondary to combined COVID-19 and Enteric fever in a patient Background: The first link between viruses and parkinsonism comes from the possible relationship between lethargic encephalitis and the Spanish flu of 1918.In addition, other viruses, including West Nile virus, herpes viruses, influenza A virus, and human immunodeficiency virus (HIV), have been associated with parkinsonism Methods: A 31 years old presented with fever ,headache for 5 days followed by altered sensorium. At presentation he had neck rigidity ,was localizing to pain ,not fully oriented and not following verbal command but he had hypoxia and need nasal oxygen support.He had D-Dimer 12506,COVID-19 RTPCR positive and was treated with Remdesivir,ceftriaxone ,dexamethasone after which he had improvement in sensorium.At day 6 of illness he had generalized rigidity,bradykinesia with slow hypophonic speech and was needing support to sit and walk . A provisional diagnosis of infection related parkinsonism was considered and Cerebrospinal fluid study,MRI Brain and spine ,Blood culture were done .His Cerebrospinal fluid study has normal protein , glucose,cells, stains and culture and negative autoimmune and paraneoplastic plane . His urine culture,blood culture was positive for salmonella typhi and serum widal titre was 1:640.MRI Brain and spine does not show any new abnormalities except old trauma sequalae. He was treated with Levo-dopa carbidopa and titrated to a dose of 675 mg/day and had sustained improvement with levo-dopa carbidopa .There are 6 other case of COVID-19 associated parkinsonism in literature .There are also few case of typhoid associated case of parkinsonism described in literature . Our patient had combined infection of both COVID-19 and typhoid associated parkinsonism. Result(s): We report a case of Infection related parkinsonism secondary to combined COVID-19 plus typhoid infection Conclusion(s): Exploring the potential relationship of co-infection SARS-CoV-2 and Salmonella typhi infection with development of parkinsonism is essential because of the epidemiological implications,as well as to gain a better understanding of the pathophysiological aspects of these disorders.

An Early Detection Of NIPAH Infectious Disease Based On Integrated Medical Features For Human Using Ensemble RBM Techniques

Background: The importance of early diagnosis of a hazardous illness cannot be overstated. The transmission rate is extremely high, especially in the current pandemic condition. The ability to predict epidemics will aid public health in reducing mortality and morbidity. Machine Learning (ML) approaches are used in the construction of an effective disease prognosis model. Furthermore, only if the model learns good associated features from the data is it possible to generate a speedy outcome. As a result, selecting features is also necessary before beginning the forecasting process. Objective(s): However, because of the virus's dynamic structure, it's difficult to predict Nipah disease and/or zoonotic infection. Furthermore, there is no clinical treatment for Nipah. The major goal of this research is to develop a prognostic model for early diagnosis of Nipah disease using a combination of several clinical factors such as symptoms, disease incubation information, and routine blood test results confirmed by a lab technician.Proposed System: The healthcare application and data are more complex to handle than other ML applications since various clinical features are assessed throughout disease manifestation. As a result, selecting the most relevant variables is critical when designing a prognosis model for any viral disease. To deal with clinical features from a vast number of features, we proposed a Restricted Boltzmann Machine (RBM) method in this research. Additionally, we employed a hybrid ensemble learning method to predict if the patient was infected with NiV after choosing features using the RBM. Data Collection: The proposed system is being implemented using the NiV infection dataset that erupted in Kozhikode, Kerala in 2018 and 2019. Result(s): The developed stacking-based ensemble Meta classifier was successfully implemented using the python programming language, and its performance was evaluated using a variety of metrics includingaccuracy, precision, recall, f1-score, log loss, AUROC and MCC. Our proposed Stacking Ensemble Meta Classifier (SEMC) model achieved an accuracy rate of 88.3% with a log loss of 0.36. Model precision, recall, f1-score, AUROC, and MCC value were 92.5%, 89.2%, 90.9%, 92.1%, and 0.74 respectively. In addition, we calculated the gravitational pull of each feature using the SHAP approach and discovered that altered sensorium, fever, headache, and cough were the most critical clinical indicators that distinguished NiVD infection from our dataset. Therefore, this classification may assist the pathologist in diagnosing NiVD with symptoms before performing the RT-PCR medical test. Conclusion(s): Using our proposed SEMC technique, we developed a prognostic model for the diagnosis of Nipah in humans. The proposed technique's discriminatory efficiency exhibited good NiVD diagnosis efficacy. We anticipate that this model will aid medics in determining a prognosis more quickly during future epidemics. However, to achieve maximum accuracy, the model requires more unique samples.Copyright © 2022 Wolters Kluwer Medknow Publications. All rights reserved.

Encephalitis or Stroke? A Case Report of Thalamic Stroke in COVID Era

Introduction: Since 2019, COVID-19 pneumonia caused by SARS-CoV-2 virus has led to a worldwide pandemic. Since then, various neurological manifestations of COVID-19 pneumonia have been reported. Neurological manifestations include headache, anosmia, seizures, and altered mental status. In some cases, it presents as stroke, encephalitis, and neuropathy. Artery of Percheron (AOP) is a variant in the posterior circulation. Here, a single artery arises from the posterior cerebral artery p1 segment. It supplies bilateral thalamus with or without midbrain. Thrombosis in this artery leads to clinical symptoms like reduced level of consciousness, altered mental status, and memory impairment. Case Report: Here, we present a case who presented with fever and altered sensorium without any focal neurological deficits and without known risk factors for stroke. His COVID-19 PCR was positive. He was initially diagnosed as COVID-19 pneumonia with encephalitis and was started on treatment for the same. His initial CT brain and lumbar puncture were normal. The next day, when MRI brain with and without contrast was done, the thalamic stroke due to AOP infarction was diagnosed and appropriate treatment for stroke was initiated. Discussion(s): Many patients miss the window for thrombolysis because of variable presentation in clinical symptoms with negative imaging. It is also difficult to assess the time of onset of stroke in this varied presentation. Our patient had fever and cough for 2 days and had altered mental status since the morning of admission. During hospital stay, he developed bilateral third nerve palsy. This case also highlights the importance of detailed evaluation in COVID-19 patients with neurological complaints. This helps to avoid delays in treatment and to improve clinical outcomes. As our knowledge of COVID-19 and its varied neurological manifestations evolve, we need to be prepared for more atypical presentation to facilitate timely interventions.Copyright © 2022 The Author(s). Published by S. Karger AG, Basel.

A case of post coronavirus disease 2019 (COVID-19) multisystem inflammatory syndrome in adults (MIS-A) presenting as fever and seizures

Background/Purpose: The coronavirus disease 2019 (COVID-19) pandemic has led to the emergence of a severe associated condition, multisystem inflammatory syndrome in adults (MIS-A). Initially identified in children as MIS-C, literature regarding the clinical manifestations, illness progression, and treatment of MIS-A are limited. Method(s): This study describes a case of MIS-A presenting as fever and seizures. She was initially given steroids and IVIG, and due to recurrence of fever, she was later treated with tocilizumab. Result(s): The patient was a 55-year- old Filipino female presenting to the emergency department with five days of fever, headache, and disorientation. Lumbar tap was done, which showed elevated opening pressure, normal leukocyte count, normal glucose, slightly elevated protein, and no microorganisms. She was admitted and managed as a case of viral encephalitis. On hospital day 6, she had sudden onset of head-jerking and further decrease in sensorium, hence she was transferred to the intensive care unit. Brain MRI was unremarkable, and subsequent immune-mediated encephalitis was considered. The patient underwent methylprednisolone pulse therapy and IVIG infusion, which provided immediate improvement of sensorium and resolution of fever episodes. Her condition stabilized, and she was transferred out of intensive care. She underwent physical and occupational rehabilitation as preparation for discharge. Two weeks after infusion therapy, on hospital day 26, patient had recurrence of fever episodes and persistence of elevated inflammatory markers. The patient had reported a previous COVID-19 infection 10 weeks prior to admission and received a booster dose of Moderna (Spikevax) COVID-19 vaccine three weeks prior. She tested positive for ANA (1:640, nuclear speckled), while the rest of the autoimmune antibody tests were negative. She was diagnosed as MIS-A based on the following: documented fever (>=38 degrees centigrade) for >=24 hours prior to hospitalization;new-onset neurologic signs and symptoms including seizures and encephalopathy in a patient without prior cognitive impairment;elevated CRP, ferritin, IL-6, and ESR;and a positive SARS-CoV- 2 test for recent infection by RT-PCR. Patient was treated with a locally available monoclonal antibody, tocilizumab, which was given on hospital day 43. Following infusion, she had lysis of fever and marked decrease in CRP, ferritin, IL-6, and ESR. Patient was discharged improved and without end-stage organ damage. Conclusion(s): Immunomodulators target hyperinflammation seen in MIS-A. There may be a role for the use of tocilizumab via blockage of IL-6. MIS-A remains a topic for research, particularly its disease characteristics, management, and relation to a dysregulated immune system.

TRP ion channels and approaches in COVID-19

Living systems have hundreds of ion channels on their surfaces. The TRP protein family defined in Drosophila is one of the channels providing ion passage and is present in living systems from simple organisms to complex. TRP channels have various roles in sensory systems and are located in almost all cells. TRP cation channels of mammals consist of seven subfamilies and each of them has their own structure, location etc. (Clapham, 2003). Since they play a role in sensory transmission, sciencists think that they could be potential targets for relieving the symptoms of various diseases (Miller, 2006). COVID-19 disease caused by the SARS-Cov-2 virus occurs with symptoms such as headache, muscle pain, respiratory and digestive problems, and loss of taste and smell. TRP channels have been targeted in some approaches to reduce these symptoms. In some studies that blocked TRP channels, the symptoms were observed to disappear or to decrease significantly (Fernandes et al., 2012). The virus requires angiotensin converting enzyme 2 and transmembrane protease serine 2 proteins to enter host cells. These processes are mediated by endocytosis and by Ca+ flow. In this context, it has been observed that the blocking of TRP channels hinders the entry of the virus into the host. The aim of this review is to examine the severe symptoms, the potential roles of TRP ion channels in the spread and progression processes of the COVID-19 pandemic, which led to a worldwide crisis, as well as their therapeutic approaches.

EMPHYSEMATOUS PYELONEPHRITIS IN THE COVID & CANCER ERA- CASE SERIES FROM A TERTIARY CARE HOSPITAL IN CHENNAI, SOUTH INDIA

Introduction: Emphysematous pyelonephritis (EPN) is a rare yet life threatening, necrotizing renal parenchymal infection with a mortality rate of 20-25%. With advent of CT, early goal directed therapy with antibiotics, aggressive treatment of sepsis and percutaneous drainage techniques, the mortality and morbidity rates are not as grim as earlier reports. Nephrectomy, treatment of the past has been replaced with nephron sparing surgery with better patient outcomes. A retrospective study was conducted at Government Kilpauk Medical College Hospital between January 2020 and April 2022. Diabetes, obstructive uropathy, structural abnormalities of the urinary tract and immunosuppression are well known risk factors for EPN. Malignancy and associated chemotherapy can make the vulnerable even more susceptible to EPN. The COVID19 pandemic, which was rampant for the past two years, with steroids being the cornerstone of management of COVID pneumonia also contributed to significant immunosuppression and poor glycemic control in many. This study wants to highlight along with traditional risk factors, the impact of COVID19 and Cancer on EPN. Methods: Demographic, clinical, radiological, and microbiological data of 33 patients were recorded. The data were analyzed to study risk factors, treatment modalities, need for hemodialysis, prognostic factors contributing to morbidity and mortality and patient outcome.The initial diagnosis of EPN at presentation was made by ultrasound evidence of gas in renal parenchyma, which was confirmed by CT imaging. Results: Out of a total 33 patients, 64% were females and the median age was 57.5 years. At presentation, common symptoms were abdominal pain (93%), renal angle tenderness (87%), fever (82%), vomiting (75%), dysuria (74%) and oliguria (65.9%). 81.8% (n=27) patients were diabetic. Urinary tract obstruction was present in 33.3% (n=11), Solid organ malignancy related EPN in 21.2% (n=7), with cancers involving kidney and urinary tract predominantly, concomitant COVID infection in 18.2% (n=6) patients, renal transplant EPN in 9% (n=3) of patients respectively. Most common organism was E.coli (60%) followed by Klebsiella spp.(10%), Pseudomonas (8%), Candida spp. (5.6%), Proteus mirabilis (1.4%) and culture negative EPN (15%). CT scoring was done by Huang and Tseng classification. Class I was documented in 28%, Class 2 in 58.8%, Class 3 in 11.8% and Class 4 in 2% of patients. DJ stenting was done in 55% of patients, percutaneous nephrostomy in 3% and the remaining patients improved with antibiotics alone. 35.7% (n=12) required dialysis,10.7% (n=4) were dialysis dependent at the end of three months with 9%(n=3) requiring dialysis indefinitely. Gender, glycemic status or uremic symptoms showed no statistical significance. Sepsis, shock, altered sensorium, higher serum creatinine and hemodialysis dependency had significant impact on patient's outcome. Conclusions: Early diagnosis and treatment with broad-spectrum antibiotics and properly timed interventions decreased mortality. Abdominal pain, renal angle tenderness and fever were the most common symptoms. E. coli was the commonest organism encountered. Solid organ malignancy contributed to a sizable portion of EPN in our study secondary to susceptibility to infections and obstruction. COVID19 infection is a risk factor for EPN due to worsening glycemic status and immunosuppression caused by steroid administration. No conflict of interest

Haematological Malignancy Presenting in an Unusual Manner

Chronic lymphocytic leukaemia is a haematological malignancy that occurs due to an increased proliferation of mature B lymphocytes. It is considered to be the most common leukaemia in adults. Hyponatremia is commonly seen in such patients. This case report is about a 75-year-old male, who presented with giddiness, followed by altered sensorium. However, the patient had no motor weakness or sensory loss. Initially, a diagnosis of posterior circulation stroke was made but Magnetic Resonance Imaging (MRI) brain did not show associated signs. The routine investigations showed highly elevated total leukocyte count and hyponatremia. The patient was worked up for malignancy and diagnosed with Chronic lymphocytic leukaemia. Oncology reference was taken and treated with tablet Ibrutinib. On discharge, the patient's mentation improved, and he is on regular follow-up.

Quadriparesis after COVID-19 Vaccination: Two Cases with Different Diagnosis

Aim and objective: During the recent COVID-19 pandemic various vaccines have been developed and approved for emergency use, including adenovirus vector-based ChAdOx1 nCov-19. There are few reports of serious adverse events following immunization (AEFI). Materials and methods: Here, we report two cases of serious AEFI who required ICU admission. Results: Case 1: A 55-y-m hospitalized with complaints of giddiness for 4 days and onset of weakness of all four limbs with altered sensorium for 1 day. He had no history of any comorbidity, non-smoker and non-alcoholic, and no previous episodes of transient ischemic attacks. He was vaccinated with a second dose of adenoviral vector-based ChAdOx1 nCov-19 vaccine (8 days before the onset of first symptoms). After hospitalization, immediate intubation was done for airway protection. His neurological examination revealed blinking of eyes spontaneously, motor power of 0/5 in all four limbs, deep tendon reflex of +2, and mute plantar. MRI Brain was done on the next day (day of illness, DOI-4), which revealed acute infarct in the pons and bilateral cerebellar hemisphere. He was referred to our ICU on DOI-12. Repeat MRI Brain on DOI-16 showed subacute infarcts in the pons, bilateral middle cerebellar peduncles, and left cerebral hemisphere with thrombosed basilar artery. Lipid profile, homocysteine levels, auto-immune work-up were normal. Echocardiography showed normal LV function with no evidence of LA clot. Carotid Doppler showed normal carotid vessels. In view of ischemic stroke and basilar artery thrombosis anti-platelet agent and therapeutic anticoagulation continued. Over the next 3 weeks, he showed gradual improvement in motor power (3/5 in upper limbs and 2/5 in lower limbs) and weaned off from mechanical ventilation. Case 2: A 19-y-m hospitalized with complaints of acute onset paraesthesia and progressive weakness in both lower limbs for 4 days and difficulty in speech and swallowing for 1 day. He had no history of any comorbidity, and no history of preceding viral/bacterial infection except that he had received the first dose of the adenoviral vector-based ChAdOx1 nCov-19 vaccine (16 days before the onset of first symptoms). After hospitalization, he required intubation in view of pooling of oral secretions and respiratory distress. Clinical examination revealed bifacial weakness, severe neck muscle weakness, and flaccid areflexic quadriparesis with prominent proximal upper and lower limb weakness. Pin-prick sensation was distally reduced in both lower limbs with associated autonomic instability in the form of tachycardia and hypertension. MRI Brain was normal in the study. In further work, Guillain-Barré syndrome (GBS) was diagnosed. CSF showed albumin-cytologic dissociation (protein 1.14 g/L and nil cell), and bilateral motor nerve axonal neuropathy on nerve conduction study. Immunoglobulin (IVIG) therapy was started on DOI-6. He did not show significant improvement and was referred to our ICU for further management. During the 5th week of illness, the IVIG dose was repeated without any improvement and continuing requirement of mechanical ventilation. Conclusion: Though vaccination is one of the important public health interventions implemented to tackle the COVID-19 pandemic, there are known and unknown serious AEFI being reported. Both cases presented quadriparesis with different diagnoses, who received vaccination for COVID-19.

Hemophagocytic Lymphohistiocytosis after COVID-19 Vaccination: A Case Report

Aim and background: Cases of thrombotic thrombocytopenia induced by coronavirus disease 2019 (COVID-19) vaccines have been reported recently. Herein, we describe hemophagocytic lymphohistiocytosis (HLH) following COVID-19 vaccination. Case report: A 35-year-old male, chronic alcoholic, 3 years into abstinence received first dose Covishield vaccine. He started developing a fever, testicular pain, diminished sensorium requiring invasive ventilation, and decreased urine output 4 days after getting vaccinated. Initial workup for NCCT brain and HRCT chest was normal, tropical fever panel was negative, cultures for blood and endotracheal aspirate were sterile, liver and renal functions showed mild derangement, CSF study was normal. Ultrasound examination of the abdomen revealed mild hepatosplenomegaly, mild testicular swelling, and suprainguinal lymphadenopathy, with no focus of infection. Subsequently, he developed bicytopenia with haemoglobin 9.0 g/dL and platelet counts 50 × 109/L, ferritin 2130 μg/L, triglyceride 353 mg/dL, and decreased fibrinogen 1.41 g/L. Bone marrow as well as lymph node biopsy showed haemophagocytosis with engulfment of neutrophils, lymphocytes, and normoblasts making HLH a likely diagnosis. Soluble CD25 and NK cell function could not be performed. Extensive evaluation was done to look into the etiology of HLH. SARS-CoV-2 reverse transcriptase-polymerase chain reaction (RT-PCR) test was negative. RT-PCR test for Epstein-Barr virus (EBV), influenza A (H1N1, H3N2), influenza B, cytomegalovirus (CMV) performed from endotracheal aspirate (ETA) was negative. Similarly, the RT-PCR test from serum samples for EBV, Parvo B-19, CMV, and from CSF sample for EBV, Parvo B-19, CMV, and HSV-1 was negative. Hepatitis B, C, and HIV serologies were negative. Culture and sensitivity repeated from blood, ETA and urine was sterile. Autoimmune panel including complements levels were negative. Peripheral smear, bone marrow, and lymph node biopsy were normal and did not reveal abnormal or malignant cells. He had persistent fevers to 38.6°C during the first 6 days of his admission, with a rise in his ferritin to 1950 μg/L. The patient received steroids but not etoposide. By the 8th day, his fevers resolved, with improvement in his lethargy and malaise. Two weeks later, his ferritin had reduced to 510 μg/L, platelet count rose to 180 × 109/L, and repeat ultrasound abdomen demonstrated resolution of his splenomegaly. In our patient, there was no clear precipitant of HLH other than the Covishield vaccine. There was no evidence of an infection or malignancy. Due to our patient's clinical stability, resolution of symptoms, and improvement of HLH parameters he did not require HLH specific therapy. It is unclear if he had a pre-existing genetic predisposition to HLH as genetic testing is pending, however, it is unlikely as he has reached the age of 35 and suffered from previous viral infections without developing HLH.

The Effect of Nasal Irrigation on COVID-19 Patient’s Mild Symptoms of Respiratory Tract

BACKGROUND: Severe Acute Respiratory Syndrome Coronavirus-2 is a virus that causes COVID-19. The initial symptoms put forward by the WHO since 2020 is fever accompanied by cough and shortness of breath. Currently, the loss of smell and taste, accompanied by other symptoms, tends to be a strong predictor of COVID-19. The nose is the entrance for air, that’s why the nose has an important role in the breathing process. In addition to warming, humidifying, and filtering incoming air, the nose can also maintain respiratory tract homeostasis. The use of nasal irrigation with isotonic saline solution (NaCl 0.9%) is a way to improve mucociliary clearance function by activating cilia as an olfactory sensory system. AIM: This study aims to evaluate the effect of nasal irrigation on COVID patients who have mild symptoms in the upper respiratory tract. METHODS: The purpose of this study was to see the effectiveness of nasal irrigation using 0.9% NaCl in COVID-19 patients with mild symptoms by looking at the average duration of time complaints felt by patients compared to those without nasal irrigation intervention. RESULTS: This study found a significant difference (p = 0.000) between the control group and the intervention group, where the mean duration of symptoms in the intervention group was shorter than the control group. CONCLUSION: Anosmia is a symptom in COVID-19 which is almost always accompanied by symptoms of loss of taste, various theories on the cause of anosmia have been put forward since the COVID-19 pandemic broke out. Improvements in symptom duration were found to be shorter in COVID-19 patients who performed nasal irrigation using 0.9% NaCl independently for 10 days so that in the future, it is hoped that nasal irrigation will become part of the comprehensive management of COVID-19 patients who have mild symptoms, especially symptoms related to nasal and upper respiratory complaints.

Cerebellar ataxia: a rare toxicity of commonly used drug

Background and Aim: Metronidazole is commonly prescribed drug for amoebiasis and is usually well tolerated, and safe but can cause serious neurological adverse events including peripheral neuropathy which is relatively common but CNS toxicity is rare. We report a case of cerebellar ataxia who had taken metronidazole inadvertently for amoebic liver abscess. Case summary: Young male with history of toddy inking admitted for management of amoebic liver abscess. He was managed with percutaneous ain and intravenous metronidazole. He was discharged on oral metronidazole tablet for a total duration of 10 days. Due to COVID-19 pandemic, he did not turn up and continued taking metronidazole. Two months’ later patient presented with progressive slurring of speech and unsteady gait. On examination, cerebellar sign was present with normal motor and sensory system. Blood investigations including complete blood count, liver function test, kidney function test and thyroid profile were normal. Vitamin B12 and fasting blood sugar levels were normal. Non-contrast computed tomographic (NCCT) scan of brain was normal. Magnetic resonance imaging (MRI) scan of the brain showed areas of hyperintense signal change in dentate nucleus of cerebellum, two small foci in dorsal pons and splenium of corpus callosum with no restriction in T2 FLAIR, DWI and ADC sequences suggestive of interstitial edema. On stopping metronidazole, his sign and symptoms started waning and was symptom free after 10 days. Conclusions: Neurological toxicity may be related to prolonged administration, high doses, or high cumulative doses of metronidazole and prompt identification of neuropathy and cerebellar ataxia is essential to avoid permanent damage. Clinicians should avoid the use of metronidazole for more than 2 weeks in case of amoebic liver abscess.

Coronavirus 2019:clinical and neuropathological aspects

Objective: To describe the clinicopathological correlations of 141 confirmed postmortem cases of coronavirus disease 2019 (COVID-19) due to severe acute respiratory syndrome-coronavirus -2 (SARS-CoV-2). Background: Analysis of 50 cases of COVID-19 with available neuropathology revealed three CNS findings. First, hypoxia-ischemia does not account for all relevant neuropathological features. Second, elevated levels of circulating cytokines suggest activation of post-infectious immunity indicative of a cytokine storm, with increased hypercoagulability leading to a risk for thrombotic and hemorrhagic parenchymal tissue infarction. Third, a minority of cases have acute demyelinating encephalomyelitis-(ADEM) like features or indolent brainstem encephalitis. Such cases may present with early altered sensorium and brainstem signs. Fourth, SARS-CoV-2 staining could not be confirmed due to paucity of available tissue specimens. Design/Methods: Ninety-four additional cases with available postmortem CNS neuropathology showed four additional findings. Results: First, positive SARS-CoV-2 genome by PCR testing is present in brain tissues especially in olfactory bulb neurons and glial cells lending support to a route of entry into the CNS and the importance of early anosmia. Second, SARS-CoV-2-positive neurons appear to be TUNEL positive and caspase-positive, displaying reversible pT231 Tau localization in some cell soma that may be highly neurotoxic and a driver of tauopathy. Third, expression of ACE2 in oligodendrocytes is associated with viral entry, while TMPRSS2 and TMPRSS4 staining is implicated in pruning of viral-decorating spikes. Fourth, meningeal and interstitial brainstem inflammation by cytotoxic T-cells coincides with the localization of SARS-CoV-2 viral proteins in cranial nerves and interstitial areas of lower brainstem encephalitis. The detection of brain microglial activation and sparse perivascular and leptomeningeal T-cell infiltrates correlates with critical illness encephalopathy. Conclusions: Genetic diversity, recombination, and viral mutation carries the foreseeable risk of continued fatality due to the direct and indirect effects of SARS-CoV-2 that include inflammatory vasculopathy, encephalitis, silent infarctions, and critical illness encephalopathy.

Neuroimaging in COVID-19 Patients on Mechanical Ventilation Receiving Sedation: Insight Beyond Diagnosis

Objective: To study the cause of prolonged altered sensorium following cessation of sedation in mechanically ventilated patients Background: Patients with severe COVID-19 are at risk of thrombotic complications such as deep vein thrombosis, pulmonary thromboembolism, myocardial infarction and stroke. The incidence of strokes following COVID-19 is reported to be around 1.2%. There has been an increased incidence of large vessel strokes, especially, in young patients without any known risk factors in patients with COVID-19. Design/Methods: We report four cases of stroke diagnosed following neuroimaging in patients with severe COVID-19 Acute respiratory distress syndrome (ARDS). Results: All the patients were receiving supportive treatment and mechanical ventilation at the time of diagnosis of stroke. All patients received sedation and paralytics during mechanical ventilation. Poor response to stimulation and inability to wake up after sedation had worn off prompted neuroimaging in these patients, which revealed stroke. Incidentally, all these patients had hypernatremia at the time of diagnosis of stroke. Conclusions: This case series suggests that stroke should be considered in all COVID-19 patients who continue to have altered sensorium even after the cessation of sedation.

COVID -19 Outcomes of 10,881 patients: Retrospective study Of Neurological symptoms and Associated manifestations(Philippine CORONA Study)

Objective: We aimed to investigate the associations between new-onset neurological symptoms (NNS) and mortality, respiratory failure, intensive care unit (ICU) admission, duration of ventilator dependence, length of ICU and hospital stay among COVID-19 patients. Background: Current reports of neurological symptoms/signs, complications, and outcomes of COVID-19 infection are limited due to the small number of included patients and relatively short duration of data collection which could hinder more precise estimates and detection of rarer manifestations. Design/Methods: We conducted a nationwide, comparative, retrospective, cohort study among adult, hospitalized COVID-19 patients involving 37 hospital sites from various regions in the Philippines. Results: We included a total of 10,881 patients with confirmed COVID-19 infection (2,008 had NNS;8,873 did not have NNS). The most common NNS were headache (n = 607, 5.58%), anosmia/hyposmia (n = 544, 5.0%), and altered sensorium (n = 479, 4.4%). The adjusted hazard ratios (aHRs) for mortality among the mild and severe cases were significantly higher by 1.660 (95% CI 1.132-2.435) and by 1.352 (95% CI 1.042-1.752), respectively, in the NNS group compared to those in the non-NNS group. The aHRs for respiratory failure in the NNS group were significantly increased by 1.914 (95% CI 1.346-2.722), by 1.614 (95% CI 1.260-2.068), and by 1.234 (95% CI 1.089-1.398) among the mild, severe, and critical cases, respectively. The aHRs for ICU admission in the NNS group were still significantly higher by 1.973 (95% CI 1.457-2.673) and by 1.831 (95% CI 1.506-2.226) among the mild and severe cases, respectively. Patients who had NNS were not significantly associated with a longer duration of ventilator dependence (adjusted odds ratio (aOR) 0.954, 95% CI 0.772-1.179), longer ICU stay (aOR 0.983, 95% CI 0.772-1.252) and longer hospital admission (aOR 1.045, 95% CI 0.947-1.153). Conclusions: The presence of NNS significantly increases the risk of mortality, respiratory failure and ICU admission among COVID-19 patients.

Central Nervous System Tuberculosis with SARS-CoV-2 Infection: A Short Case-series from Sri Lanka

Objective: To report a series of patients with clinical and imaging findings suggestive of central nervous system (CNS) Tuberculosis (TB) and active or recent SARS-CoV-2 infection presenting to a single tertiary care center within a two-month period. Background: A presumptive diagnosis of CNS TB is made in the setting of relevant clinical and epidemiologic factors together with typical radiographic findings. Immunosuppression is clearly associated with reactivation or re-infection of TB, although triggers leading to a reactivation are unclear. It is postulated that the SARS-CoV-2 infection suppresses the host innate and adaptive immunity. Design/Methods: NA Results: Three patients with suspected and one with confirmed CNS TB were identified. Patient one presented with a history of fever and altered sensorium for one-week. Concurrent SARS-CoV-2 infection was confirmed. CT-brain showed an obstructive hydrocephalus and an External Ventricular Drain was placed. Cerebrospinal fluid (CSF) nucleic acid amplification test (NAAT) for TB was positive. Patients 2-4 were diabetic and had SARS-CoV-2 infection identified concurrently or in the preceding two weeks. They presented with a history of headache & diplopia of two weeks duration. Examination revealed multiple cranial nerve palsies. The common MRI features were contrast enhancement & soft tissue thickening in the cavernous sinus wall. Patient two had multiple tuberculomas, patient three had orbital apex involvement and patient four had Meckel's cave thickening. CSF analysis revealed elevated proteins without cells and NAAT for TB was negative. All patients were started on anti-TB chemoprophylaxis with corticosteroids. Conclusions: Given the potential immunomodulatory role of SARS-CoV-2, we hypothesize that the viral infection acted as a trigger for the reactivation of TB in the CNS. In addition, three out of four of our patients had cavernous sinus wall involvement which is an unusual finding in CNS TB.

Roboethics in Remote Human Interactions and Rehabilitative Therapeutics

Global aging, the need for continuous high-quality services, and the recent COVID-19 pandemic have caused many sectors to reduce in-person contact between individuals where possible, and to instead use remote communication technology. With increased robot use replacing in-person interventions, ethical considerations arise. The benefits of robotic technology must be weighed against the possibility of harm to humans. The first rules of roboethics were written by Isaac Asimov in 1942, but these pre-date the range of robotic applications used today. There is no central agency for oversight in Canada, although universities and funding organizations have developed guidelines. Roboethical considerations include data use and privacy, the common good, and safety. Humans may potentially form emotional bonds with robots. Loss of jobs to automation is also a concern, particularly when many workers have suffered job losses due to the pandemic. Some health care services have switched to a remote care model, to reduce the spread of COVID-19. Remote hand rehabilitation of patients with brain injury is possible with iManus. Using a portable smart-glove technology, patients practice rehabilitative hand movements that are analyzed remotely through a sensor that offers instantaneous feedback. A therapist monitors their patient's progress remotely and designs individualized programs. This technology benefits humanity by improving access to care for patients globally. The importance of data security and privacy is emphasized. As patient progress will be monitored by a human (a therapist), the safety of iManus is not a concern. The principles discussed in this paper can help researchers and engineers design ethical robotics in remote health care settings.

Post-COVID-19 Impairment of the Senses of Smell, Taste, Hearing, and Balance.

BACKGROUND: Various symptoms have been associated with COVID-19, but little is known about the impacts of COVID-19 on the sensory system, risk factors, and the duration of symptoms. This study assesses olfactory, gustatory, hearing, and vestibular systems after COVID-19. METHODS: This cross-sectional, single-center study involved 50 patients one to six months after COVID-19 and reports their patient records and the extent, onset, and duration of olfactory, gustatory, hearing, and balance disorders using questionnaires during and after COVID-19. Sensory symptoms were objectively studied using the following clinical tests after COVID-19 Sniffin' Sticks, taste tests, tone/speech audiometry, and video head impulse test. RESULTS: Post-COVID-19-patients were suffering from olfactory and gustatory impairment for up to six months. According to the Dizziness Handicap Inventory, balance disorders were less noticed: Overall, about 40% of the patients during COVID-19 and nearly all patients recovered within six months. After COVID-19, clinical tests revealed that 75% were suffering from hyposomnia/anosmia, and 20% of all patients reported mild hypogeusia for up to six months. Vestibular disorders and hearing impairment rarely/did not occur. Females were significantly more affected by sensory impairments than males. CONCLUSIONS: COVID-19 particularly caused olfactory and gustatory impairment; balance disorders were present too; vestibular and auditory symptoms were negligible.

Rational emotive behavior therapy for deafblind individuals with progressive vision loss

Deafblind individuals with progressive visual conditions are presented with the challenge of adjusting to the gradual loss of sight over time and the social, psychological, environmental, and communicative implications relative to that process. Mental health treatment for these individuals is not widely researched due to the lack of homogeneity in the deafblind population;therefore, exploratory studies are necessary. Rational Emotive Behavior Therapy (REBT) is an evidence-based treatment that has successfully addressed a range of symptoms in many psychological and medical diagnoses but has not been researched with individuals who are deafblind. In this multiple baseline design study, the researcher delivered a six-week REBT intervention to investigate its effect on symptoms of emotional distress, rational/irrational beliefs, and acceptance and adjustment towards vision loss. The study occurred during a global pandemic (COVID-19) and was therefore conducted via telehealth. The intervention resulted in improvement for two out of the three participants, with little improvement observed in the one participant likely due to confounding variables outside of the study's control. Additionally, results were maintained one month after the intervention was completed. These findings contribute to the research on REBT and support the need for more research using REBT with individuals who are deafblind. (PsycInfo Database Record (c) 2022 APA, all rights reserved)