Paramdeep Singh

Dyke-Davidoff-Masson syndrome: Classical imaging findings

A 15-year-old female presented with seizures, right-sided hemiparesis, hemiatrophy of the right side of the body and mental retardation. MRI brain revealed characteristic features diagnostic of congenital type of cerebral hemiatrophy or Dyke–Davidoff–Masson syndrome.

Wilson's disease: MRI features

A 15-year-old boy presented with coarse tremors of right hand and dysarthric speech. Neurologic examination demonstrated Kayser-Fleischer rings and dystonic tremor of the right hand. Serum ceruloplasmin and urine copper studies established the diagnosis of Wilsons disease. Brain MRI showed bilateral T2 hyperintensity involving putamen, thalami, and brainstem. Involvement of brainstem revealed the characteristic “double panda sign.”

Endovascular treatment of acute ischemic stroke.

Early recanalization of the occluded artery leads to better clinical outcomes in patients with acute ischemic stroke (AIS) through protection of the time-sensitive penumbra. Intravenous administration of pharmacologic thrombolytic agents has been a standard treatment for AIS. To get better rates of recanalization, enhance the time window, and diminish the possibility of intracranial hemorrhage, endovascular thrombectomy was launched, with first authorization of the Merci clot retriever, a corkscrew-like apparatus, followed by approval of the Penumbra thromboaspiration system. Both devices lead to a high rate of recanalization. On the other hand, time to recanalization was on an average of 45 minutes, with most of the patients attaining only partial recanalization. More lately, retrievable stents have shown promise in decreasing the time to recanalization, and attaining a superior rate of complete clot resolution. The retrievable stent can be released within the clot to engage it within the struts of the stent, and afterwards it is taken back by pulling it under flow arrest. Neurointerventional techniques have a persistently ever-increasing and stimulating role in the management of AIS, as indicated by the advent of several important techniques. Stent retrievers have the capability to be ascertained as the most important approach to endovascular stroke treatment.

A report of Joubert syndrome in an infant, with literature review.

Joubert syndrome (JS) is a rare autosomal recessive disorder with key finding of cerebellar vermis hypoplasia with a complex brainstem malformation that comprises the molar tooth sign on axial magnetic resonance images. This syndrome is difficult to diagnose clinically because of its variable phenotype. The exact diagnosis is often not made for several years after birth. This report shows that with the availability of magnetic resonance imaging (MRI), especially in developing countries like India, it is quite feasible to make an early diagnosis which may positively affect the subsequent management and outcome. We present a case of JS in a 7-month-old girl who presented to the pediatric outpatient clinic with developmental delay and abnormal eye movements. MRI showed molar tooth configuration of superior cerebellar peduncles, the fourth ventricle shaped like a bat wing and hypoplasia of the vermis which resulted in median approach of the two cerebellar hemispheres.

Clot composition and treatment approach to acute ischemic stroke: The road so far

Recent histological studies of thrombi retrieved from patients with an acute ischemic stroke using the endovascular thrombectomy devices and correlation with early vessel computed tomography (CT) and magnetic resonance imaging (MRI) characteristics have given relevant insights into the pathophysiology of thrombotic lesions and may facilitate the development of improved reperfusion treatment approaches. We present a review of recent studies on the histopathologic analysis of thrombi, studies of MRI, and CT imaging correlation with thrombus histology, and detailed structural analysis of thromboemboli retrieved by thrombectomy devices during an acute ischemic stroke.

Pseudotumoral hemicerebellitis with hemorrhage

Acute cerebellitis is an inflammatory syndrome occurring most commonly in young children. It is caused by a variety of insults and is usually bilateral. Pseudotumoral hemicerebellitis is an exceptionally rare unilateral presentation of acute cerebellitis mimicking a tumor. Magnetic resonance imaging (MRI) reveals a diffusely swollen cerebellar hemisphere, but with the lack of a well-defined mass, which is hyperintense in T2-weighted images and with pial enhancement in post-contrast images. It typically has a benign course with regression in follow-up scans, thus distinguishing it from a tumor. Recognizing this entity is important because erroneous diagnosis may lead to needless surgical intervention. We present a case of pseudotumoral hemicerebellitis in a 12-year-old boy with coagulopathy, with follow-up MRI depicting hemorrhage, and discuss the pathogenesis.

A prospective study assessing clinicians attitude and knowledge on radiation exposure to patients during radiological investigations.

Background: Exposure to radiation during radiological investigations is of health concern, which referring physicians should rationalize. Hence, we assessed the clinicians awareness and concern of radiation exposure to patients, in relation to their referral practice. Materials and Methods: A prospective study was conducted involving specialists from Punjab (India), who were handed a standard set of questionnaire concerning knowledge of radiation hazards and doses from imaging procedures, consideration of radiation dose and age when referring, referrals not likely to affect treatment, and use of referral guidelines were included. Of the 150 medical doctors given the questionnaire, 106 returned it. Results: Majority of the clinicians underestimated radiation doses, while a few overestimated it. Almost half of the clinicians (55.5%) favored to select the rationale of asking about previous radiological examinations as clinical need only, which was surprising. Rates of referrals unlikely to affect treatment were more (66%) than reported rates in previous studies. Worryingly, only 30.1% of the clinicians had knowledge of referral guidelines and alarmingly only 10.5% had made use of it. Conclusions: Our study although in a small population size identifies inadequate knowledge on radiation and its guidelines among referral physicians, which warrants the immediate need for training programs to bridge this knowledge gap.

Telephonic consultation and follow-up in diabetics: Impact on metabolic profile, quality of life, and patient compliance

Background: Diabetes mellitus (DM), being a long-term condition, requires consistent blood glucose monitoring and adjustment of doses of the antidiabetic drugs and insulin. Telehealth is an emerging field that can have a positive impact on the management of this disease. Aim: The aim was to study the impact of the frequency of consultation and follow-up on telephone of diagnosed follow-up patients of DM on glycemic and metabolic profiles, the patients′ compliance, and their quality of life (QoL), and to compare the effectiveness of different modes of follow-up. Materials and Methods: One hundred twenty patients were enrolled from the outpatient department (OPD) including both type 1 and type 2 DM patients who had already been diagnosed and were on treatment. They were randomly assigned to one of three groups, each consisting of 40 subjects, according to the mode of follow-up: A (rare, i.e., less frequent outpatient visits), B (moderate, i.e., more frequent outpatient visits), and C (frequent, i.e., more frequent outpatient visits with weekly telephonic consultation). Metabolic profiles and the QoL were monitored. The patients′ compliance with and adherence to the treatment, and dietary and exercise advice were assessed. Results: The patients′ compliance with and adherence to the treatment was higher in group C, followed by groups B and A. There was a net decrease in adverse events, with an increase in the frequency of follow-up. Changes in glycated hemoglobin (HbA1c) suggested a positive impact of weekly telephonic consultation. The lipid profile was also positively affected, with maximum improvement being in high-density lipoproteins (HDLs) and triglycerides. There was an improvement in the QoL domains pertaining to physical health and endurance in patients with higher frequency of follow-ups. There was no effect on emotional or mental health. There was an overall deterioration of the financial domain, being most marked in group B. The treatment satisfaction questionnaire showed better results in the telephone intervention group. Conclusion: Telephonic consultation can be a useful measure to improve the follow-up and management of patients with DM.

Frequency distribution of Hepatitis C virus in different geographical regions of Punjab: Retrospective study from a tertiary care centre in North India

Background and Aim: There is a scarcity of published information on epidemiology of Hepatitis C infection in India particularly in Punjab. We conducted a retrospective study to assess the frequency distribution, including demographic and geographical data of patients with Hepatitis C in different regions of Punjab. Materials and Methods: We retrospectively collected the clinical, demographic and geographical data of 516 patients with Hepatitis C admitted in our hospital from January 2010 to December 2010. Punjabi patients with positive anti-Hepatitis C virus (HCV)-enzyme linked immune sorbent assay test for the detection of anti-HCV antibodies were included. Results: There was predominantly rural distribution (67.3%) of patients with maximum cases from Ludhiana district (30.04%). Highest frequency of Hepatitis C infection was found in the middle aged (41-60 years) patients with male predominance. High proportions (44.8%) of the patients included in our study were incidentally detected with Hepatitis C infection on routine screening. Various associations of HCV infection with other diseases were also identified. Conclusions: Hepatitis C is an emerging disease in Punjab with a sizeable cluster of HCV infected asymptomatic persons who can act as a pool for its continuous transmission. The study helps us to predict the probable risk factors for Hepatitis C infection in Punjab. The need of the hour is to increase awareness about HCV among the public and practicing physicians.

Teaching NeuroImages: Glutaric aciduria type 1 (glutaryl-CoA dehydrogenase deficiency)

A 14-month-old boy presented with loss of developmental milestones and tonic spasms following a diarrheal illness. He was born to nonconsanguineous parents and had mild motor delays. Examination was remarkable for macrocephaly, axial hypotonia, and asymmetric dystonic posturing of neck, trunk, and extremities. …