Does Early Tracheostomy Improve Outcome in Severe Head Injury?

Object:  To determine if early tracheostomy reduces the duration of mechanical ventilation, Intensive Care Unit (ICU) stay and morbidities associated with it in patients with severe head injury. Methods:  This 5-yr retrospective review included 60 ICU patients with severe traumatic head injury requiring mechanical ventilation and tracheostomy. Early tracheostomy (ET) was defined as tracheostomy within 7 days, and prolonged endotracheal intubation (EI) as endotracheal intubation for more than 7 days. Among 60 patients, 30 underwent early tracheostomy and 30 remained on prolong EI for ventilation. All patients were comparable in term of age and initial Glasgow Coma Scale (GCS). We evaluated groups regarding clinical outcome in terms of ventilator associated pneumonia (VAP), ICU stay and Glasgow Outcome Score (GOS). Results:  The incidence of Ventilator Associated Pneumonia (VAP) was significantly higher in prolonged Endotracheal Intubation EI group, relative to Early tracheostomy ET group (63% vs. 43%, respectively). ET group showed significantly less ventilator days (9 days vs. 12 days), ICU stay (10 days vs. 13 days), complication rate (13% vs. 18%) and mortality (10% vs.25%). Clinical outcome assessed on the basis of Glascow Outcome Score (GOS) was better in ET group. Conclusions:  In severe head injury early tracheostomy decreases total days of ventilation and ICU stay. Tracheostomy is associated with a decrease in the incidence of Ventilator Associated Pneumonia (VAP). Early tracheostomy should be considered in severe head injury patients requiring prolong ventilatory support. &nbsp

Role of multi-parametric (mp) MRI in prostate cancer

Multi-parametric magnetic resonance imaging is increasingly being recommended as standard imaging modality for prostate cancer diagnosis and staging. It comprises structural T2 and T1 sequences supplemented by functional imaging techniques, i.e. diffusion-weighted, dynamic contrast enhanced and spectroscopic imaging. Pre-biopsy multi-parametric magnetic resonance imaging is recommended for both detection and staging as it avoids biopsy artefact, and when normal, has a negative predictive value of 95% for significant cancer. Magnetic resonance imaging-guided prostate biopsy targets only area(s) considered to be suspicious for prostate cancer, hence resulting in improved accuracy. Dynamic contrast enhancing helps in the detection of cancer and for the assessment of extra-capsular extension, distal urethral sphincter and seminal vesicles involvement. The role of multi-parametric magnetic resonance imaging in follow-up of patients on active surveillance is also increasingly recognised. Its role is now further expanded to facilitate targeted therapies. This review focuses on the evolving role of multi-parametric magnetic resonance imaging in diagnosis and management of prostate cancer

Neurorobotics In Pakistan

Neurosurgery demands highest degree of accuracy and precision. A surgeon’s dexterity may be tested to the human limit when it comes to negotiating with delicate structures inside cranial cavity. Robotic devices can help surgeons cross these human limits and achieve better precision and less invasiveness. With enhanced accuracy, precision and dexterity it is possible to work through small corridors and trajectories causing minimal injury to the normal brain. Unfortunately however, robotics in neurosurgery is not as advanced as it is in other surgical specialties like gynecology and urology….

Intracranial cavernous angiomas

Objective: To describe the clinical presentation, diagnosis, and management of patients presenting with intracranial cavernous angiomas (CAs) at a tertiary care hospital in Pakistan.Study Design: Case series. Place and Duration of Study: Section of Neurosurgery, The Aga Khan University Hospital (AKUH), Karachi, from January 1990 to September 2008.Methodology: A retrospective case note review of all patients diagnosed with intracranial CAs at AKUH during the study period. The studied variables included patient demographics, clinical presentation, family history of intracranial CAs or other space occupying lesions, modality of diagnosis, management, and outcome. Results were described as frequency percentages.Results: During the review period, 18 patients (11 males and 7 females) were diagnosed with intracranial CAs. The median age at diagnosis was 28.5 years. The most common location of malformations was cerebrum (n=13) followed by brain stem (n=3), and cerebellum (n=2). Nine patients had multiple lesions. Family history was present in 2 patients. Seizures and focal neurologic deficits were the main clinical manifestations. The detection rate was 93.8% with magnetic resonance imaging, but less with angiography and computerized tomography. Ten cases were treated surgically; 8 were managed conservatively. The outcome was satisfactory except for one patient, who died within 6 months of diagnosis. Surgery was performed for gross haemorrhage, rapidly increasing neurologic deficits, and intractable or long-standing seizures.Conclusion: Cavernomas tend to occur at younger age in females than males. This data raises a possibility of a higher frequency of multiple cavernomas in Pakistani patients. The main clinical manifestations are seizures and focal neurologic deficits. MRI is most sensitive and specific neuroradiologic modality for detecting this vascular malformation

Surgical research: Exploring our history - navigating the future

In the fifteenth century, trained individuals called' barber surgeons' mastered the art of handling sharp instruments and performing basic surgical procedures. They even founded a 'United Company of Barber Surgeons' in 1540.1 Besides shaving and haircutting, they were trained to perform dental extractions and a few surgical procedures. Later in 1745, qualified doctors and surgeons came together and founded 'Company of Surgeons' in the UK, which later became the Royal College of Surgeons in London.2 This progression from anecdotal experiences of the guild of barbers to a formal society that helped the implementation of scientifically reasoned decisions by Royal College Surgeons was only possible because surgeons were able to appreciate the value of the evidence and incorporate it into their practices. Continuous..

Microsurgical excisions of vestibular schwannomas: A tumor-size-based analysis of neurological outcomes and surgical complications

Introduction: Vestibular schwannomas (VS) are benign tumors originating from Schwann cells in vestibulocochlear nerve. This study aimed at evaluating outcomes of microsurgical resections of VS based on tumor sizes in a South Asian country.Methods: The chart notes of 71 Patients who underwent microsurgical resections of VS at a single academic center over a 20-year period (1990-2009) were reviewed, and relevant information was extracted. For analyzing outcomes, Patients were divided into two groups based on tumor size at initial presentation: (1) Group A (tumor size ≤ 4 cm) and (2) Group B (tumor size \u3e 4 cm). Pearson\u27s chi-square and Fisher\u27s exact tests were used for comparison of proportions, the independent sample t-test was used for comparison of means.Results: The average tumor diameter was 4.1 1.5 (range, 1-6.6) cm. Complete resection was achieved more frequently in Patients in Group A (P \u3c 0.001). Duration of hospital stay and cost of treatment were significantly higher in Group B Patients (P \u3c 0.003 and P \u3c 0.04, respectively). The severity of postoperative facial nerve injury, assessed by House-Brackmann grading system, was significantly higher in Group B (P \u3c 0.01). Cerebrospinal fluid (CSF) leak and lower cranial nerve deficits also occurred more frequently after resection in Group B (P = 0.031 and P = 0.003, respectively).Conclusion: We conclude that advanced stage tumors suggestive of delayed presentation are fairly common in Pakistan, and limit curative resection in the majority of Patients. Postoperative morbidity is significantly higher in Patients with tumor size \u3e 4 cm

Management of penetrating brain injury

Penetrating brain injury (PBI), though less prevalent than closed head trauma, carries a worse prognosis. The publication of Guidelines for the Management of Penetrating Brain Injury in 2001, attempted to standardize the management of PBI. This paper provides a precise and updated account of the medical and surgical management of these unique injuries which still present a significant challenge to practicing neurosurgeons worldwide. The management algorithms presented in this document are based on Guidelines for the Management of Penetrating Brain Injury and the recommendations are from literature published after 2001. Optimum management of PBI requires adequate comprehension of mechanism and pathophysiology of injury. Based on current evidence, we recommend computed tomography scanning as the neuroradiologic modality of choice for PBI Patients. Cerebral angiography is recommended in Patients with PBI, where there is a high suspicion of vascular injury. It is still debatable whether craniectomy or craniotomy is the best approach in PBI Patients. The recent trend is toward a less aggressive debridement of deep-seated bone and missile fragments and a more aggressive antibiotic prophylaxis in an effort to improve outcomes. Cerebrospinal fluid (CSF) leaks are common in PBI Patients and surgical correction is recommended for those which do not close spontaneously or are refractory to CSF diversion through a ventricular or lumbar drain. The risk of post-traumatic epilepsy after PBI is high, and therefore, the use of prophylactic anticonvulsants is recommended. Advanced age, suicide attempts, associated coagulopathy, Glasgow coma scale score of 3 with bilaterally fixed and dilated pupils, and high initial intracranial pressure have been correlated with worse outcomes in PBI Patients

Role of microRNAs in non-functioning pituitary adenoma

Non-functioning pituitary adenomas account for 30% of anterior pituitary tumours. Based on their inability to secrete hormones, these are often diagnosed incidentally or due to pressure symptoms. Understanding the pathogenesis of these adenomas can provide insight into factors leading to its progression and serving as biomarkers for early recognition. A literature search was performed in the current narrative review for articles published in PubMed for the last 10 years till January 2020 on micro-ribonucleic acid involved in the pathogenesis of non-functioning pituitary adenomas. Of the 478 articles found, 21(4.4%) were filtered. In total, 106 micro-ribonucleic acids were identified, 25(23.5%) of which appeared in more than one study. Among them, 7(28%)were up-regulated, 11(44%) down-regulated, and 7(28%) were either up- or down-regulated. Micro- ribonucleic acids allow the screening, diagnosis and treatment of diseases in a relatively easy and inexpensive manner. This can revolutionise tumour management in the years ahead, especially in resource-constrained low- and middle-income countries