Navin Patil

Clonazepam Associated Hypothyroidism: Aforethought on a Concealed Dilemma

Subclinical hypothyroidism or mild thyroid failure is a familiar problem, with a prevalence of 3-15% in a population without any known overt thyroid disorder. The prevalence increases with age and is relatively higher among females. Subclinical hypothyroidism is defined as serum thyroid stimulating hormone (TSH) levels above the upper limit of normal (4 mU/L) while the triiodothyronine (T3) and thyroxine (T4) enduring within the normal range. Additionally, there exists a log-linear relationship between TSH and circulating T3 and T4; hence, measurement of serum TSH becomes mandatory for diagnosing mild thyroid failure when free T3 and T4 are lying within normal limits. Though, autoimmune thyroid disease is the most common cause for elevated TSH; thyroid functions can be afflicted by long-term consumption of drugs like lithium, amiodarone. The causal relationship between benzodiazepine class of drugs, particularly clonazepam and subclinical hypothyroidism has never been established clinically, yet there are some pre-clinical studies to claim the effect of benzodiazepine on thyroid functions; operating at various levels – hypothalamus, thyroid gland, peripheral cells and nuclear receptors. Henceforth, we would like to report a rare occurrence of subclinical hypothyroidism in an elderly female receiving clonazepam for her underlying psychiatric illness.

Assessment of Cardiac Autonomic Function by Post Exercise Heart Rate Recovery in Diabetics

Abstract Background and Aims: Autonomic dysfunction in type 2 diabetes mellitus (DM) patients may translate into an increased cardiovascular morbidity and mortality. Autonomic system regulates ‘heart rate recovery’ (HRR), an important predictor of cardiovascular mortality, which can be assessed using the exercise electrocardiogram (ECG). Hence, utilizing HRR, this study assessed the autonomic function of the cardiovascular system after one minute of exercise stress test in both, patients with and without type 2 DM. Materials and Methods: A prospective case control study involving 50 patients with type 2 DM and 50 without type 2 DM, matched for age and sex, was carried out. Each subject underwent an exercise stress test by treadmill using the Bruce protocol. Cardiovascular parameters like heart rate was recorded using a 12 lead ECG along with blood pressure. Results: Patients with T2DM had lesser HRR after exercise (p < 0.001). Exercise capacity was significantly reduced among patients with T2DM when compared to controls (p = 0.01). A multiple linear regression analysis (R2=0.26) revealed that duration of diabetes (β=−0.02, p=0.048) and resting systolic blood pressure (SBP) (β=−010, p=0.048) are independent predictors of HRR. Conclusion: The study revealed HRR to be significantly reduced among patients with type 2 DM. HRR may hint at the presence of cardiac autonomic dysfunction and predict the cardiovascular mortality.

Addison’s Disease Mimicking as Acute Pancreatitis: A Case Report

Over past two decades there has been significant improvement in medical field in elucidating the underlying pathophysiology and genetics of Addisons disease. Adrenal insufficiency (Addisons disease) is a rare disease with an incidence of 0.8/100,000 cases. The diagnosis may be delayed if the clinical presentation mimics a gastrointestinal disorder or psychiatric illness. We report a case of Addisons disease presenting as acute pain in abdomen mimicking clinical presentation of acute pancreatitis.

A Case of Accidental Formic Acid Poisoning

Formic acid is a commonly available compound, available commercially for the purpose of coagulating rubber. It is a highly corrosive agent. Consumption of this pungent liquid has resulted in dire consequences, based on the available literature. There have been a few reports of accidental/suicidal consumption of formic acid in the past. This is one such case report of an accidental poisoning with formic acid, with successful management and recovery.

Echocardiographic abnormalities in cirrhosis & their correlation with severity of cirrhosis using Child-Pugh score among patients in a tertiary care hospital

Background & objectives: Child-Pugh score (CPS) is a widely used prognostic marker in cases of cirrhosis and pulmonary arterial hypertension (PAH). However, the role of this score in the quantification of severity of PAH is not well studied. In mild cases, echocardiography is more sensitive. This study was done to assess the association between echocardiography and severity of cirrhosis using CPS. Methods: A cross-sectional study was done from April to June 2014 in 42 patients with cirrhosis using a pre-tested semi-structured interview schedule. Results: There was no significant association between echocardiographic changes and CPS in patients with liver cirrhosis. Interpretation & conclusions: Advising an echocardiographic evaluation may prove beneficial in patients of Child-Pugh Grades B and C. However, more extensive studies are required to confirm the same.