A hybrid swarm intelligence algorithm for region-based image fusion.

This paper proposes a novel multi-hybrid algorithm named DHPN, using the best-known properties of dwarf mongoose algorithm (DMA), honey badger algorithm (HBA), prairie dog optimizer (PDO), cuckoo search (CS), grey wolf optimizer (GWO) and naked mole rat algorithm (NMRA). It follows an iterative division for extensive exploration and incorporates major parametric enhancements for improved exploitation operation. To counter the local optima problems, a stagnation phase using CS and GWO is added. Six new inertia weight operators have been analyzed to adapt algorithmic parameters, and the best combination of these parameters has been found. An analysis of the suitability of DHPN towards population variations and higher dimensions has been performed. For performance evaluation, the CEC 2005 and CEC 2019 benchmark data sets have been used. A comparison has been performed with differential evolution with active archive (JADE), self-adaptive DE (SaDE), success history based DE (SHADE), LSHADE-SPACMA, extended GWO (GWO-E), jDE100, and others. The DHPN algorithm is also used to solve the image fusion problem for four fusion quality metrics, namely, edge-based similarity index ( Q A B / F ), sum of correlation difference (SCD), structural similarity index measure (SSIM), and artifact measure ( N A B / F ). The average Q A B / F = 0.765508 , S C D = 1.63185 , S S I M = 0.726317 , and N A B / F = 0.006617 shows the best combination of results obtained by DHPN with respect to the existing algorithms such as DCH, CBF, GTF, JSR and others. Experimental and statistical Wilcoxon's and Friedman's tests show that the proposed DHPN algorithm performs significantly better in comparison to the other algorithms under test.

Retrospective Observational Study to Assess Safety and Tolerability of Nebulized Colistin for the Treatment of Patients With Pneumonia in Real-World Settings in Respiratory ICU.

INTRODUCTION: Colistin is used to treat hospital-acquired pneumonia and ventilator-associated pneumonia. However, direct drug deposition at the site of infection may improve its efficacy and reduce systemic exposure. The aim of this study was to assess the safety and tolerability of nebulized colistin among Indian patients diagnosed with pneumonia caused by multidrug-resistant gram-negative bacilli in real-world settings. METHODOLOGY: We retrospectively reviewed the medical records of patients treated with nebulized colistin for pneumonia. We assessed the adverse events and relevant abnormal laboratory findings of nebulized colistin therapy. RESULTS: All enrolled patients (N=30, males: 22, females: 8; average age: 71.06 years) were treated for 13.36 days. Almost 80% of patients had a history of shortness of breath, which was a major symptom when they were admitted to the hospital. The patients were administered nebulized colistin for an average of six days (8 hours per day). The most common dosing schedule was 1 million international units (MIU)/8 hours. No serious adverse event was observed, and only one patient died while on the treatment but the death was not related to colistin treatment. The average sequential organ failure assessment score for all patients was 6.5. CONCLUSION: Our study demonstrated the efficient clinical utility and well-tolerated safety profile of nebulized colistin in the treatment of patients with pneumonia. Neurotoxicity and nephrotoxicity were not reported. Since a significant percentage of patients were with chronic respiratory diseases, our study further indicates the safety and effectiveness of nebulized colistin in chronic obstructive pulmonary disease (COPD) patients too.

Impact of angiotensin receptor blocker as antihypertensive in assessing mortality in patients of COVID-19: A single tertiary care center study.

BACKGROUND: The angiotensin-converting enzyme 2 (ACE2) receptor, a membrane receptor present in the respiratory system, the gastrointestinal tracts, the heart, and the kidney is the entry point for SARS-CoV-2 to enter human cells. Concerns were raised about the influence of using antihypertensive drugs like angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin receptor blockers (ARBs) in individuals with COVID-19 due to its tight relationship with the ACE2 receptor. The aim of this study was to investigate the impact of being on an Angiotensin Receptor Blockers (ARB) on mortality in patients consecutively diagnosed with COVID-19. MATERIAL AND METHODS: This is the retrospective observational study done in all patients consecutively diagnosed with COVID-19 from January 2021 to June 2021. All related patient information and clinical data was retrieved from the hospitals electronic medical record system. RESULTS: In this study, out of 500 patients, 51 died, having mean age of 66.92 ± 10.85 years. 144 (28.8%) patients were on angiotensin receptor blockers as antihypertensive treatment, 142 (28.4%) having other antihypertensive and 214 (42.8%) were not on any treatment. Out of 51 Death 7 (4.9) patients were on ARBs, 15 ± 10.6 were on other medication [OR 2.31 (0.94-6.22, P = 0.077) univariable; OR 2.57 (1.00-7.23, P = 0.058) multivariable] and 29 ± 13.6 had no treatment at all [OR 3.07 (1.38-7.80, P = 0.010) univariable; OR 3.36 (1.41-9.08, P = 0.010) multivariable]. CONCLUSION: Use of ARB medications for the hypertensive patients who acquire COVID-19 infection has shown protective effects of such medications on COVID-19 disease severity in the term of mortality and the mortality rate among hypertensive patients on COVID-19 with ARBs/ACE inhibitors showed significant differences as compared to other antihypertensives.

Scrub typhus presenting as cryptogenic organizing pneumonia in a young female: A first case report.

We report the case of a young female suffering from fever and generalized weakness on presentation and was diagnosed to be a case of cryptogenic organizing pneumonia (COP). She developed breathlessness on rest and required oxygen support and on further evaluation diagnosed with Scrub typhus IgM positive status. This case report highlights the importance of a rare presentation of Scrub typhus in a young female presenting with clinically silent chest changes initially and preventable worse outcomes if detected and managed for scrub typhus infection early in the course of disease.

Platypnea-orthodeoxia syndrome: A dangerous detour of intermediate syndrome with organophosphorus poisoning.

Dyspnea experienced in the upright position which is relieved in the supine position, is known as Platypnea. Accompanying desaturation in the arterial blood associated with Platypnea is known as orthodeoxia. Various causes of Platypnea orthodeoxia syndrome, such as hepatopulmonary syndrome, patent foramen ovale and atrial septal defects, are well described in the literature. However, a rather uncommon and underreported cause of Platypnea orthodeoxia syndrome is organophosphorus poisoning. We report a case series of three cases that were reported after ingestion of organophosphorus compounds and developed breathlessness later in the course of the hospital stay, which was diagnosed as Platypnea orthodeoxia syndrome resulting from organophosphorus poisoning. All three cases were treated with supportive management, incentive spirometry and respiratory physiotherapy and responded well to the treatment.

Association of serum ferritin with COVID-19 in a cross-sectional study of 200 intensive care unit patients in a rural hospital: Is ferritin the forgotten biomarker of mortality in severe COVID-19?

Background: The COVID-19 disease caused by the SARS-CoV-2 virus, has toppled the world since first case noted in 2019, and the cases have been increasing there after. This grave effect is caused by the cytokine storm induced inflammation produced by the noxious virus. As it is an inflammatory state, various acute phase reactants are expected to raise; thus serum ferritin is contemplated to increase. Here we aim to anchor serum ferritin as a way marker for diagnosis and management of COVID-19 patients and study its role as a prognostic marker. Another aspect is the association of COVID-19 with the N: L ratio; observation has stated that higher N: L ratio results in more severe outcome. The study aimed to establish a correlation of COVID-19 severity with serum ferritin in the form of HRCT Score, N: L Ratio and Clinical Outcome in the patients admitted in Intensive Care Unit. Result: Out of 200 patients who were admitted in the intensive care unit with COVID-19, the association of serum ferritin with N: L Ratio and HRCT Score was significant, and the association of serum ferritin with clinical outcome in terms of discharged and expired was found to be statistically significant. Conclusion: Serum ferritin was found to be a potent marker for clinical outcome in intensive care unit patients in terms of death versus treated. HRCT Score and N:L ratio were found to be correlated with serum ferritin. Therefore, we conclude that serum ferritin may determine the severity of COVID-19 infection and it can be used as a marker for Clinical Outcome thereby making it an often neglected biomarker for predicting prognosis in COVID-19 with most of the physicians focusing mostly on interleukin 6, C Reactive protein and d dimer as a marker of severe COVID infection.

Fulminant dengue hepatitis in sickle cell disease: Recovery against the odds.

Fulminant hepatitis is a potentially life-threatening disease that is evident through the findings of organ dysfunction, jaundice, and hepatomegaly, which is painful. Dysfunction of the endothelial cells and thus the damage of the endothelium is the probable mechanism, which is responsible for causing complications of hepatobiliary system in patients with sickle cell disease. Various acute as well as chronic manifestations of the hepatobiliary system, having varied severity and pathophysiology are associated with sickle cell disease. Dengue fever may also affect the liver starting from asymptomatic liver enzyme derangement to fulminant hepatic failure. This case series describes the first ever association of fulminant hepatic failure resulting from the synergistic effect of dengue fever with sickle cell disease and thus highlights the importance of prevention of dengue fever in sickle cell patients, thereby preventing potentially lethal fulminant hepatic failure.

Post-COVID-19 menstrual abnormalities and infertility: Repercussions of the pandemic.

While battling the life-threatening complications of COVID-19, its effect on the menstrual cycle and infertility has been somewhat ignored. This brief review aims on highlighting the importance of menstrual abnormalities being experienced during the post-COVID period and to make the clinicians aware about what to expect in regard of menstrual abnormalities by learning from various studies that have been conducted worldwide. This review article was written with systematic literature review with the help of data search machine such as PubMed, Scopus, Web of Sciences, and Google Scholar. A search strategy leads to the extraction of 160 related articles that after the removal of inappropriate and duplicate articles, 33 articles were selected for the review. To find other potentially relevant articles, the references of the extracted articles were thoroughly examined. The search was carried out using keywords including "COVID-19," "Menstrual abnormalities," and "Infertility." Using OR and AND, the keywords mentioned above were combined and then utilized in the search box of the databases. Articles published from January 2020 to September 2021 were included in this study. It includes worldwide data ranging from studies done in China, India, Ireland, Turkey, Jordan, and Germany. During the post-COVID period, there is a significant alteration in the sex hormones of females infected by COVID-19 which may manifest as menstrual cycle abnormalities such as decreased cycle length or prolonged menstrual cycle bleeding. It may also manifest as infertility due to ovarian failure due to suppression of ovarian function COVID-19 a novel coronavirus which is presently a pandemic has affected the world in manner reminding the world of 1918 Spanish flu. However, while battling the deadly pandemic, the clinicians should also be aware of the repercussions of the effect this infection has on multiple organs such as ovarian suppression leading to infertility, oligomenorrhea, or menorrhagia.

Vanishing lung syndrome masquerading as pneumothorax in a smoker: Now you see me, now you do not.

A rare clinical syndrome, giant bullous emphysema, also known by the name of vanishing lung syndrome (VLS), is characterized by an X-ray of the chest showing disappearance of the lung. VLS is a chronic disease that progresses gradually and is usually seen in young male smokers, with other risk factors being alpha-1 antitrypsin deficiency and marijuana abuse. Giant emphysematous bullae are a pathognomonic presentation with a preference towards the upper lobe of the lungs. These emphysematous bullae may remain dormant for a long duration before presenting as worsening dyspnoea. Computed tomography is an essential tool to diagnose VLS. The treatment modalities include surgical and thoracoscopic resection of the bullae. We have reported a rare case of VLS in a 58-year-old chronic smoker managed conservatively.

Paradoxical cause of weaning failure: Post tracheostomy foreign body causing non-resolving pneumonia with worsening failure to wean.

The Percutaneous technique for tracheostomy has become the standard procedure, due to its ease in placement, minimal complications, and has almost replaced the traditional open (surgical) tracheostomy in intensive care units. We describe a case of broken tracheal cartilage which slipped into the tracheobronchial tree following percutaneous tracheostomy (PCT), impinging and causing collapse of medial basal segment of right lower lobe.

Role of Salivary Uric Acid Versus Serum Uric Acid in Predicting Maternal Complications of Pre-Eclampsia in a Rural Hospital in Central India: A Two-Year, Cross-Sectional Study.

Background Hypertensive disorders during pregnancy are an important topic of concern, specifically in rural and remote areas of India where there is a lack of awareness and it is difficult to maintain proper follow-up of pregnant females to screen them for complications developed during pregnancy. Gestational hypertension and pre-eclampsia result in the abruption of the placenta, hemolysis, elevated liver enzymes, low platelet count syndrome, eclampsia, and disseminated intravascular coagulation, which can be a serious threat to the health of the mother and the fetus. Therefore, it is important to identify biomarkers for diagnosing and predicting the complications of pre-eclampsia that may aid the obstetric high-dependency units based in rural areas to tackle this important health hazard during pregnancy. Methodology A total of 180 singleton pregnant women of more than 34 weeks of gestational age were enrolled in this study. All women were divided into three groups (control group, severe pre-eclampsia, and non-severe pre-eclampsia) based on the severity of blood pressure and the presence of proteinuria (≥+1 by the dipstick method). Salivary and serum uric acid levels were measured through morning samples, and all patients were monitored for the development of complications and outcomes. Salivary uric acid and serum uric acid levels were correlated with each other and with maternal complications of pre-eclampsia. Results Mean salivary uric acid (mg/dL) in severe pre-eclampsia was (6.72 ± 0.49) significantly higher compared to non-severe pre-eclampsia (4.75 ± 0.94) and control (3.13 ± 0.43). Mean serum uric acid (mg/dL) in severe pre-eclampsia was (8.13 ± 0.87) significantly higher compared to non-severe pre-eclampsia (6.23 ± 0.76) and control (3.85 ± 0.46).The lowest best cut-off value of maternal salivary uric acid was 5.06 mg/dL, above which one can predict maternal complications with a diagnostic accuracy of 78.33%. Conclusions Salivary uric acid and serum uric acid levels are significantly raised in cases of pre-eclampsia in comparison to normal pregnancy. Salivary uric acid and serum uric acid are correlated significantly indicating that salivary uric acid can function as a cost-effective, novel marker to provide an idea about serum uric acid levels. The prognostic accuracy of salivary uric acid was good in predicting maternal complications among cases of pre-eclampsia (severe and non-servere) and early-onset maternal complications. Therefore, it may be utilized as a helpful marker to identify high-risk patients.

A Case of Suprasellar, Intrasellar, and Infrasellar Meningioma Presenting as a Visual Field Defect in an Obese Female.

Bitemporal hemianopia is the most common visual field defect encountered in suprasellar meningiomas compressing the optic chiasma and its vascular supply. It is hard to distinguish between meningioma and tumors that arise from suprasellar, intrasellar, and infrasellar extensions. Clinical findings, hormonal levels, and radiological findings could help in labeling it as meningioma. A 53-year-old obese woman with a history of blurred vision more in the right eye, loss of smell, and a headache was diagnosed with meningioma having suprasellar, intrasellar, and infrasellar extension on neuroimaging. She developed bitemporal hemianopia, which gradually worsened over the course of six months with concomitant headaches and dizziness that was treated with analgesics leading to a delayed diagnosis. As she was symptomatic, it was decided to resect her tumor. The patient underwent an endoscopic transsphenoidal approach for tumor resection. Successful excision of the tumor was accomplished. Postoperatively on further evaluation, the patient's anosmia and the visual deficit were resolved. This instance shows that meningioma located in the sella can cause symptoms like anosmia and visual field loss, which should not be neglected. It also underlines the significance of visual field evaluation on a regular basis as this might predict radiological and symptomatic progression.

The Act of Prevention: Knowledge, Attitudes, and Perception Among Caretakers of Kidney Disease Patients in Rural Wardha District of Central India.

Background There is a continual rise in the prevalence of non-cancerous conditions such as chronic kidney disease (CKD) owing to an enormous load of diabetes, hypertension, and vascular diseases. A positive attitude and healthy lifestyle for CKD prevention can only be followed when the masses are well aware and educated about the disease. This study aimed to compare, correlate, and evaluate the distribution of knowledge, attitudes, and perceptions among relatives or caretakers of patients with kidney disease or at risk of the disease. Methodology This cross-sectional study aimed at obtaining data on the knowledge, attitudes, and perceptions using the Chronic Kidney Diseases Screening Index questionnaire from the relatives of CKD patients. All data were computed and analyzed using SPSS version 28.0 (IBM Corp., Armonk, NY, USA). Results The majority of the relatives of CKD patients had poor knowledge (63.6%) and poor attitude (51.6%) levels. On the contrary, most respondents had good practices (52.8%) level toward the risk for CKD. A significant correlation was noted between education and knowledge (p < 0.050). A significant association was also observed between education and occupation with attitude (p < 0.001 and p < 0.050, respectively). Additionally, a significant association was noted between age and perception (p < 0.001). Conclusions Informed and well-educated populations are less prone to acquire or progress to CKD. From this study, we can understand the need for improvement in public knowledge, which has the potential to help in saving the lives of many patients progressing toward end-stage renal diseases.

Advancement in Current Therapeutic Modalities in Postpartum Cardiomyopathy.

Pregnancy is considered one of the most delicate conditions for the woman and her fetus, rendering physiological stress on her body. Sometimes, this leads to unwelcomed incidences of certain systemic disorders which further complicate the course of pregnancy. Cardiovascular conditions associated with pregnancy have major morbidity amongst the general population. Peripartum cardiomyopathy, one such condition associated with cardiac dysfunction during pregnancy, is one of the major causes of increased morbidity and mortality in pregnant women. It has been the leading cause of non-obstetric maternal mortality. Due to the stress on the cardiovascular system, further functioning of the body in the milieu gets compromised and thus, the occurrence of fetomaternal mortality is not rare in the prognosis of this condition. Certain studies have noted not only familial but also geographical variations in the prevalence of peripartum cardiomyopathy in certain areas. Although the occurrence of the condition is quite common, there still needs to be a better understanding of this topic for avoiding the abysmal prognosis of this pathology. A peculiar presentation on the electrogram is needed to make an accurate diagnosis of the condition. The therapeutic options of this condition, particularly incline towards medical management. Various new drugs have been formulated and are in clinical trials for testing their effectiveness. Bromocriptine therapy, along with the neoadjuvant combination of anticoagulant drugs and non-pharmacological measures, makes a good treatment regimen that helps avert the progressive pathology. In this article, we discuss the knowledge regarding the etiology, factors contributing to the severity, pathogenesis, treatment options, and the particular outcomes of the therapy.

Acute Exacerbation of Idiopathic Pulmonary Fibrosis With Pirfenidone and Nintedanib: A Friend or Foe.

Acute exacerbation (AE) in idiopathic pulmonary fibrosis (IPF) is unfortunate a deadly event with a very high mortality rate. Its occurrence is highly unpredictable, though few baseline risk factors have been identified. The revised definition of AE is more precise with clarity on defined parameters. However, no clear guidelines exist on treatment, with most therapies showing inconsistent benefits. Both the approved anti-fibrotic (pirfenidone and nintedanib) have shown equal efficacy in reducing the decline in lung functions, with few studies suggesting a drop in AE. We report a case of a patient with IPF with mildly impaired lung functions who was initiated on pirfenidone with dose titrated on a weekly basis but developed AE-IPF on day 10 of starting pirfenidone and after four days of doubling the dose from 600 mg/day to 1,200 mg/day. This raised the suspicion of whether pirfenidone played any role in this unfortunate event. With no response to conventional therapy of steroids and non-invasive ventilation for AE-IPF, initialization of nintedanib led to recovery with discharge of the patient in two weeks of hospitalization. This case highlights inadequacy in knowledge about the effects of these anti-fibrotics in IPF and recommends close monitoring in the future.

Validated Ossicular Measurements on High-Resolution Computed Tomography (CT) in Live and Cadaveric Temporal Bones.

Objective The present study was undertaken to study the utility of high-resolution computed tomography (HRCT) temporal bone in live patients for providing the parameters of ossicular dimensions (OD), using standard assessment protocols, devised by the authors, with regard to the plane of CT scans and axes of measurement of ossicles. Methods This observational study was conducted from January 2021 to February 2022 at Acharya Vinoba Bhave Rural Hospital, Sawanghi, Meghe, Maharashtra, India, in the Department of Otorhinolaryngology and Department of Radiodiagnosis. HRCT scan was performed on temporal bones, 10 in live subjects with no otological complaints and 10 in cadaveric temporal bones. HRCT was also performed for all three ossicles after dissecting them out from the respective cadaveric temporal bones. Measurements of OD were taken using Universalmednet Software and vernier calipers and compared with published anatomic data. Results The measurements taken using HRCT scans of the live subject and cadaveric bone as well as the ossicles taken using calipers fall within the range of published studies. Slight variation is seen in the measurements of stapes and incus, stapes total height is 3.17mm, less than 3.3. Conventional HRCT temporal bone in live patients when performed under set circumstances can be adopted as a standard method for measurement of ossicular sizes for the generation of normative data for different races, ethnicity and sex. Conclusion The results of our study can have implications in terms of translational research as the measurements obtained can help in better understanding of middle ear biomechanics, prosthesis designing, developing ideal tympanoplasty methods in terms of size, shape and placement of autograft.

HELLP Syndrome and COVID-19; association or accident: A case series.

Partial Hemolysis, elevation of liver enzymes and low platelet count (HELLP) syndrome is a leading cause of maternal mortality. With the exceeding spread of COVID-19, leading to increasing number of COVID-19 infected cases there has been a emergence of an overlap of COVID-19 with HELLP Syndrome. Multiple factors are associated with the thrombocytopenia witnessed in COVID-19 somewhat similar to what is witnessed in preeclampsia and HELLP Syndrome. We Describe a case series of two ante natal cases who presented with a picture of HELLP syndrome and upon investigations turned out to be COVID-19 thus trying to establish an association between the two.

COVID-19 fear-induced anorexia nervosa and obsessive-compulsive disorder leading to fatal megaloblastic anemia: Lethal psychological complication of the pandemic.

We report a young female having severe pallor and breathlessness on presentation, being diagnosed as a case of megaloblastic anemia, which was confirmed on bone marrow biopsy. On detailed history taking, she was revealed to have anorexia nervosa precipitated due to extreme fear of COVID-19 along with obsessive-compulsive disorder. Thus, a psychiatric disorder presenting due to simple phobia of COVID-19 can also have a fatal outcome in the young. Therefore, psychiatric health needs urgent attention by physicians, governments, and policymakers across the globe to prevent the surge of mental illness during the ongoing pandemic.

Artery of Percheron Stroke: A Case Report With a Diagnostic Challenge.

Artery of Percheron (AOP) is a unique anatomical variant of blood supply to the paramedian thalamus and also to the rostral part of the midbrain. It arises from the P1 part of the posterior cerebral artery. Obstruction of this artery accounts for the infarction of the bilateral thalamus with or without the involvement of the midbrain. Symptoms of artery of Percheron infarction may differ with respect to the portion of the brain it supplies and its different anatomical variations. The various symptoms include memory loss, altered consciousness, vertical gaze palsy, and others. Diagnosis is difficult due to a variety of clinical presentations and differential diagnoses like viral infections or tumors. Artery of Percheron infarction rarely occurs, and early diagnosis is a challenge as it is often missed on a conventional CT scan and even on an MRI scan of the brain. Delay in diagnosis and initiation of treatment must be avoided in such cases. We report a case of this 57-year-old male who had vertical gaze palsy and irrelevant talks, which was evaluated further and found to be the artery of Percheron infarct on MRI brain and treated with antiplatelets after which the symptoms of the patient ameliorated, and he was discharged after five days of admission.