Postoperative Complications of Transsphenoidal Pituitary Adenectomy: A Single Institution Based Experience.

Background Inside a cranium, pituitary gland seats in an area of complex anatomical construct. Further it holds a very important physiological role to maintain all bodily function. Pituitary adenoma being one of the commonest tumors of that intricate area is preferably tackled with transsphenoidal approach. However, as in any surgery, it is also not without postoperative complications. Objective To examine and categorize all the postoperative complications that we have encountered in our center after pituitary surgery. Method A retrospective study of patients who had undergone transsphenoidal pituitary adenectomy in past five years was conducted at a tertiary level neurosurgical center and various postoperative complications during hospital stay were noted and analyzed. Result In our series of 53 patients, we met different postoperative complications, out of which diabetes insipidus (DI) was the commonest. Other electrolyte abnormalities excluding diabetes insipidus was the second most common followed by Cerebrospinal fluid leak. Post-operative hematoma requiring re-exploration, panhypopituitarism, seizure and meningitis were among the rare complications. No statistically significant association was noted between tumor size, patient age and sex with surgical complications. Conclusion Postoperative complications should be anticipated in transsphenoidal pituitary surgery even though it is considered to be a relatively safe undertaking. Knowing about these complications is the first step in preventing them.

Unexpected global impact of VTA dopamine neuron activation as measured by opto-fMRI.

Dopamine neurons in the ventral tegmental area (VTA) are strongly implicated in cognitive and affective processing as well as in psychiatric disorders, including schizophrenia, depression, attention-deficit hyperactivity disorder and substance abuse disorders. In human studies, dopamine-related functions are routinely assessed using functional magnetic resonance imaging (fMRI) measures of blood oxygenation-level-dependent (BOLD) signals during the performance of dopamine-dependent tasks. There is, however, a critical void in our knowledge about whether and how activation of VTA dopamine neurons specifically influences regional or global fMRI signals. Here, we used optogenetics in Th::Cre rats to selectively stimulate VTA dopamine neurons while simultaneously measuring global hemodynamic changes using BOLD and cerebral blood volume-weighted (CBVw) fMRI. Phasic activation of VTA dopamine neurons increased BOLD and CBVw fMRI signals in VTA-innervated limbic regions, including the ventral striatum (nucleus accumbens). Surprisingly, basal ganglia regions that receive sparse or no VTA dopaminergic innervation, including the dorsal striatum and the globus pallidus, were also activated. In fact, the most prominent fMRI signal increase in the forebrain was observed in the dorsal striatum that is not traditionally associated with VTA dopamine neurotransmission. These data establish causation between phasic activation of VTA dopamine neurons and global fMRI signals. They further suggest that mesolimbic and non-limbic basal ganglia dopamine circuits are functionally connected and thus provide a potential novel framework for understanding dopamine-dependent functions and interpreting data obtained from human fMRI studies.

Suicide in Nepal: a modified psychological autopsy investigation from randomly selected police cases between 2013 and 2015.

PURPOSE: Yearly, 600,000 people complete suicide in low- and middle-income countries, accounting for 75% of the world's burden of suicide mortality. The highest regional rates are in South and East Asia. Nepal has one of the highest suicide rates in the world; however, few investigations exploring patterns surrounding both male and female suicides exist. This study used psychological autopsies to identify common factors, precipitating events, and warning signs in a diverse sample. METHODS: Randomly sampled from 302 police case reports over 24 months, psychological autopsies were conducted for 39 completed suicide cases in one urban and one rural region of Nepal. RESULTS: In the total police sample (n = 302), 57.0% of deaths were male. Over 40% of deaths were 25 years or younger, including 65% of rural and 50.8% of female suicide deaths. We estimate the crude urban and rural suicide rates to be 16.1 and 22.8 per 100,000, respectively. Within our psychological autopsy sample, 38.5% met criteria for depression and only 23.1% informants believed that the deceased had thoughts of self-harm or suicide before death. Important warning signs include recent geographic migration, alcohol abuse, and family history of suicide. CONCLUSIONS: Suicide prevention strategies in Nepal should account for the lack of awareness about suicide risk among family members and early age of suicide completion, especially in rural and female populations. Given the low rates of ideation disclosure to friends and family, educating the general public about other signs of suicide may help prevention efforts in Nepal.

Minimally invasive open lumbar discectomy: An alternative to microlumbar discectomy.

BACKGROUND: Lumbar disc surgery has come a long way since its fi rst description by Dandy in 1929. Evolving through the transdural approach and a laminectomy for the removal of a disc, it now surpasses the primal technique with essentially a minimally invasive procedure, an extradural approach without laminectomy. OBJECTIVE: The objective of this study is to ascertain the effectiveness of Minimally Invasive Open Lumbar Discectomy in the treatment of lumbar disc prolapse. MATERIALS AND METHODS: It is a descriptive study entailing the patients with paramedian or central disc prolapse at single or two consecutive lumbosacral levels undergoing surgery at the National Institute of Neurological and Allied Sciences, Bansbari, Nepal, over a period of one and a half years. Patients who underwent either laminectomy or bilateral fenestration were excluded. Results of surgery were measured prospectively in terms of primary outcome measure (outcome at six months follow up as measured with Prolo Functional and Economic Scale) and secondary outcome measures (radicular pain relief, mobilisation, complication, and residual disc). RESULTS: In the series of 137 consecutive patients, 120 fulfilled the criteria. 98.33 % of patients had an improvement in the radicular pain and ambulation was commenced from the fi rst post-operative day. There were three instances of inadvertent dural tear without fascicle injury, and one instance of residual disc requiring reoperation. At 6 months, 97.5 % had good to excellent (grade 4, or 5) results reaching the premorbid states in the Prolo Functional and Economic Scale. CONCLUSION: The results of Minimally Invasive Open Lumbar Discectomy compare favourably with those of a microlumbar discectomy, and could therefore be an alternative to the latter in resource deprived circumstances.

A comparative study on adult mortality of Nepal.

BACKGROUND: Adult mortality (15-49 years) is one of the major public health issues which remains neglected in many developing counties like Nepal. Only limited data are available which is insufficient to identify the cause and level of mortality among adults. OBJECTIVES: The aim of the study is to explore and compare the adult mortality rate of Nepal between 1996, 2001 and 2006 surveys. MATERIALS AND METHODS: This is comparative study conducted by using secondary data extracted from Nepal Family Health Survey (NFHS, 1996), National Census Report 2001 and Nepal Demographic and Health Survey (NDHS, 2006). Statistical analysis was done using Microsoft excel soft ware. The adjusted mortality rates were computed using 2001 census population as standard population. RESULT: This studied showed there was statistical evidence of declining age specific mortality rate between 1996 and 2006 survey for both men and women respectively (p<0.05). Annually adult men mortality rate and adult women mortality rate was found to be declining by 1% and 3. 2% respectively. Women mortality rate declined by 2.26 times as compared to men mortality rate over ten year's period. CONCLUSION: There is a need of in-depth analysis of adult mortality in the developing countries like Nepal.

Perceived risk of cigarette smoking among college students.

BACKGROUND: Many studies have indicated that the young adults (18-24 years) were not fully aware of health consequences of cigarette smoking. The objective of the study is to determine the prevalence of cigarette smoking among college students and to assess how they perceive the risks of cigarette smoking. METHODS: A cross-sectional study was carried out in Kathmandu valley during mid February and March 2011. This study comprises 340 students from seven private public health colleges of Kathmandu valley. The anonymous question contains information on demographic characteristics, smoking habits, and smoking related risk perception. Data was analyzed by both descriptive and inferential statistics including logistic regression with the help of Microsoft Excel 2007 and SPSS 11.5 version. RESULTS: Overall prevalence rate of ever smokers was 33% and about 16% were current smokers. Non-smokers were about 3 times more likely than smokers to report that smoking one to five cigarettes per day was harmful (aOR = 2.60; 95% CI: 1.34-5.05). Similarly, Non Smokers were 2 times more likely to belief the statement that people get addicted to tobacco as to cocaine or heroin (aOR = 2.27; 95%CI: 1.33-4.57). Nearly one fifth of smokers and non-smokers believed that smoking on a weekend or a couple of days a week was harmful, and there was no significant difference between two groups (P>0.05). CONCLUSIONS: The study reveals the smoker students were less aware of risks of cigarette smoking and its health consequences. Thus there is a need to promote effective anti-smoking messages focusing effects of each cigarette they smoke.

Lemierre's syndrome complicated by an infected branchial cyst.

We present a case of a young man with Lemierre's syndrome characterised by suppurative thrombophlebitis of the internal jugular vein and multiple septic embolic lesions with cavitations in both lungs resulting from an infected branchial cyst which was previously undiagnosed. Lemierre's syndrome is a rare presentation, especially with pulmonary cavitations, but remains a serious illness with a high mortality rate. Early recognition and prompt treatment have significant impact on prognosis. We believe this to be the first case of Lemierre's syndrome complicated by a previously undiagnosed, infected branchial cyst.

Hearing preservation in 2.7 cm vestibular schwannoma.

Hearing preservation is exceedingly difficult in vestibular schwannoma surgery, especially with increasing tumor size. We herein report a case of hearing preservation in a 2.7 cm vestibular schwannoma, where the patient maintained her pre-operative hearing threshold of 55 dB till a year after surgery. Hence, it appears that an attempt at hearing preservation is worth pursuing.

Correlation of serum cholinesterase level, clinical score at presentation and severity of organophosphorous poisoning.

The aim of the study was to correlate between the clinical score described by Peradenya Organophosphorus Poisoning (POP) scale, serum cholinesterase level at presentation and severity of poisoning. Consecutive patients of organophosphorous poisoning attending Bir Hospital from August 2004 to September 2005 were studied. Patients were grouped into mild, moderate and severe poisoning groups according to the POP scale. Fifty patients fulfilled the inclusion criteria. The severity of poisoning directly correlated with serum cholinesterase level (P<0.001). The differences in the mean requirements of atropine on the first day of admission, in the total amount of atropine needed to treat and in the average duration of hospital stay were significant (P<0.05). There were 26% patients in moderate poisoning and only 4% patients in severe poisoning, but a total of 14% of the patients died, indicating that patients with even moderate degree of poisoning had also died. Both the POP scale severity and derangement in serum cholinesterase levels at initial presentation did not correlate with mortality, which could be due to various other co-morbidities and inadvertent stoppage of atropine infusion particularly at night in the wards. The POP scale and serum cholinesterase at presentation appeared useful to assess the severity of poisoning, particularly in terms of higher amount of atropine and prolonged duration of hospital stay. The patients with evidence of moderate and severe degrees of poisoning need close monitoring. Further studies to evaluate the factors likely to cause deaths, particularly by closely monitoring of moderate and severe organophosphorous poisoning in intensive care units, are required to clarify the correlation with mortality.