Publications by authors named "Anurag Tewari"

Background: Magnetoencephalography (MEG) plays a preponderant role in the preoperative assessment of patients with drug-resistant epilepsy (DRE). However, the magnetoencephalography of patients with drug-resistant epilepsy can be difficult without sedation and/or general anesthesia. Our objective is to describe our experience with intravenous dexmedetomidine as sedation for magnetoencephalography and its effect, if any, on the ability to recognize epileptic spikes.

View Article and Find Full Text PDF

The refractory seizures have significant impact on the quality of life and increase long term neurologic and non-neurologic complications. Implantation of Stereotactic Electroencephalography (SEEG) leads is one of the newer surgical techniques intended to localize seizure foci with higher accuracy than the conventional methods. Most of the commonly utilized anesthetic agents depress EEG waveforms affecting intra operative monitoring during these surgeries.

View Article and Find Full Text PDF

Case: Brachial plexopathy is a rare complication of nonoperatively treated clavicular fractures. We describe a 68-year-old man who presented with fracture-callus-induced acute brachial plexopathy and dynamic thoracic outlet syndrome after 9 weeks of nonoperative management for a clavicular fracture. He underwent fracture fixation with brachial plexus decompression via callus excision; intraoperative neuromonitoring was used to evaluate brachial plexus function.

View Article and Find Full Text PDF

Background And Aims: Intraoperative neurophysiological monitoring (IONM) is the standard of care during many spinal, vascular, and intracranial surgeries. High-quality perioperative care requires the communication and cooperation of several multidisciplinary teams. One of these multidisciplinary services is intraoperative neuromonitoring (IONM), while other teams represent anesthesia and surgery.

View Article and Find Full Text PDF

Purpose: Anesthetic management of obese pediatric patients is challenging. With increasing prevalence of childhood obesity, more severely obese children with comorbidities present for surgery every day. The purpose of this review is to provide an up-to-date comprehensive narrative review on the impact of pathophysiological changes imposed by pediatric obesity on the perioperative management of obese children, especially drug dosing.

View Article and Find Full Text PDF

Medication errors are the common causes of patient morbidity and mortality. It adds financial burden to the institution as well. Though the impact varies from no harm to serious adverse effects including death, it needs attention on priority basis since medication errors' are preventable.

View Article and Find Full Text PDF

Medication errors are the common causes of patient morbidity and mortality. It adds financial burden to the institution as well. Though the impact varies from no harm to serious adverse effects including death, it needs attention on priority basis since medication errors' are preventable.

View Article and Find Full Text PDF

Contributions to the literature on intraoperative neuro monitoring (IONM) during endocrine and head and neck surgery have increased over recent years. Organizational support for neural monitoring during surgery is becoming evident and is increasingly recognized as an adjunct to visual nerve identification. A comprehensive understanding of the role of IONM for prevention of nerve injuries is critical to maximize safety during surgery of the anterior compartment of the neck.

View Article and Find Full Text PDF

Aim: Examination of dynamic airway collapse in patients with obstructive sleep apnea (OSA) during drug-induced sleep endoscopy (DISE) can help identify the anatomic causes of airway obstruction. We hypothesized that a combination of dexmedetomidine and ketamine (Group DK) would result in fewer oxygen desaturations and a higher successful completion rate during DISE in children with OSA when compared to propofol (Group P) or sevoflurane/propofol (Group SP).

Methods: In this retrospective study, we reviewed the records of 59 children who presented for DISE between October 2013 and March 2015.

View Article and Find Full Text PDF

Background And Aims: Various adjuncts to local anesthetics have been used with the purpose of improving the quality of subarachnoid block. This randomized double-blind study was conducted to evaluate the efficacy of adding clonidine to bupivacaine and bupivacaine-fentanyl combination.

Material And Methods: A total of 100 patients scheduled for surgery under spinal anesthesia were randomly allocated into four groups (n = 25 each) to receive intrathecal bupivacaine 7.

View Article and Find Full Text PDF

Background And Aims: Perioperative beta blockers are also being advocated for modulation of acute pain and reduction of intraoperative anesthetic requirements. This study evaluated the effect of perioperative use of esmolol, an ultra short acting beta blocker, on anesthesia and modulation of post operative pain in patients of laproscopic cholecystectomy.

Material And Methods: Sixty adult ASA I & II grade patients of either sex, scheduled for laparoscopic cholecystectomy under general anesthesia, were enrolled in the study.

View Article and Find Full Text PDF

Neurosurgery in awake patients incorporates newer technologies that require the anesthesiologists to update their skills and evolve their methodologies. They need effective communication skills and knowledge of selecting the right anesthetic drugs to ensure adequate analgesia, akinesia, along with patient satisfaction with the anesthetic conduct throughout the procedure. The challenge of providing adequate anesthetic care to an awake patient for intracranial surgery requires more than routine vigilance about anesthetic management.

View Article and Find Full Text PDF

Ablative intracranial surgery for Parkinson's disease has advanced to embedding electrodes into precise areas of the basal ganglia. Electrode implantation surgery, referred to as deep brain stimulation (DBS), is preferred in view of its reversibility, adjustability, and capability to be safely performed bilaterally. DBS is been increasingly used for other movement disorders, intractable tremors epilepsy, and sometimes chronic pain.

View Article and Find Full Text PDF

Background And Aims: Perioperative shivering, in geriatric patients undergoing urological surgery under central neuraxial blockade is a common complication. Prophylactic measures to reduce shivering are quintessential to decrease the morbidity and mortality. Believing that oral formulation will bring down the cost of treatment, we decided to compare the efficacy of oral clonidine and tramadol, as premedication, in prevention of shivering in patients undergoing transurethral resection of prostate (TURP) under spinal anesthesia in a prospective and double-blind manner.

View Article and Find Full Text PDF

Erroneous intravenous drug administration has a high probability of causing substantial financial consequences along with patient morbidity or mortality. Anesthesiologists and hospital administrators need to be cognizant of the problem. National and international anesthesiology bodies should be involved with the medical device manufacturing industry to alleviate this long standing enigma.

View Article and Find Full Text PDF

It is important for the anesthesiologist to understand the etiology of free radical damage and how free-radical scavengers attenuate this, so that this knowledge can be applied to diverse neuro-pathological conditions. This review will concentrate on the role of reactive species of oxygen in the pathophysiology of organ dysfunction, specifically sub arachnoid hemorrhage (SAH), traumatic brain injury (TBI) as well as global central nervous system (CNS) hypoxic, ischemic and reperfusion states. We enumerate potential therapeutic modalities that are been currently investigated and of interest for future trials.

View Article and Find Full Text PDF

Context: Under regional anesthesia, geriatric patients are prone to shivering induced perioperative complications that Anesthesiologists should prevent rather than treat.

Aim: We investigated the prophylactic efficacy of oral tramadol 50 mg to prevent the perioperative shivering after transurethral resection of prostate (TURP) surgery under subarachnoid blockade (SAB). Shivering is usually overlooked in patients undergoing urological surgery under spinal anesthesia and may result in morbidity, prolonged hospital stay and increased financial burden.

View Article and Find Full Text PDF

Background: Various adjuvants are being used with local anesthetics for prolongation of intraoperative and postoperative analgesia. Dexmedetomidine, the highly selective 2 adrenergic agonist is a new neuraxial adjuvant gaining popularity.

Settings And Design: The study was conducted in prospective, double blind manner.

View Article and Find Full Text PDF

Universally, anesthesiologists are expected to be knowledgeable, astutely responding to clinical challenges while maintaining a prolonged vigilance for administration of safe anesthesia and critical care. A fatigued anesthesiologist is the consequence of cumulative acuity, manifesting as decreased motor and cognitive powers. This results in impaired judgement, late and inadequate responses to clinical changes, poor communication and inadequate record keeping.

View Article and Find Full Text PDF

A case series of the anesthetic management of 4 patients with pemphigus vulgaris (PV) undergoing emergency/elective surgery is presented. PV presents serious concerns for anesthesiologist, when present, in a surgical patient but handling of these patients with care and taking all the due precautions can decrease morbidity and airway-related complications. Various clinical presentations and precautions, which should be ensured during anesthesia in patients suffering from PV, are discussed.

View Article and Find Full Text PDF

Background: Opioids are most commonly used as adjuncts in intravenous regional anesthesia (IVRA) to improve the quality of intraoperative and postoperative analgesia. There is paucity of literature on the use of butorphanol in IVRA.

Aims: The aim of this study was to evaluate the likely benefits of addition of butorphanol to lignocaine in Bier's block in terms of onset and duration of sensory block and also for analgesic requirement in postoperative period.

View Article and Find Full Text PDF

The provision of anaesthesia requires a high level of knowledge, sound judgement, fast and accurate responses to clinical situations, and the capacity for extended periods of vigilance. With changing expectations and arising medico-legal issues, anaesthesiologists are working round the clock to provide efficient and timely health care services, but little is thought whether the "sleep provider" is having adequate sleep. Decreased performance of motor and cognitive functions in a fatigued anaesthesiologist may result in impaired judgement, late and inadequate responses to clinical changes, poor communication and inadequate record keeping, all of which affect the patient safety, showing without doubt the association of sleep debt to the adverse events and critical incidents.

View Article and Find Full Text PDF