Opioid free anesthesia in a pre-term neonate: A case report

Opioids play a major role in the perioperative management of pain in adults and children. Though there is significant morbidity and mortality associated with overdosage of opioids, they remain the most common means of providing analgesia in the perioperative period. We report the case of a preterm neonate born with low birth weight who underwent high sigmoid loop colostomy for high anorectal malformation using opioid-free general anesthesia with supplementation with caudal block. Successful uncomplicated extubation of preterm baby was achieved with good spontaneous efforts. Opioid free general anesthesia can prevent respiratory depression and the need for postoperative mechanical ventilation even when given to preterm neonates

Co-axial dual-core resonant leaky fibre for optical amplifiers

We present a co-axial dual-core resonant leaky optical fibre design, in which the outer core is made highly leaky. A suitable choice of parameters can enable us to resonantly couple power from the inner core to the outer core. In a large-core fibre, such a resonant coupling can considerably increase the differential leakage loss between the fundamental and the higher order modes and can result in effective single-mode operation. In a small-core single-mode fibre, such a coupling can lead to sharp increase in the wavelength dependent leakage loss near the resonant wavelength and can be utilized for the suppression of amplified spontaneous emission and thereby gain equalization of an optical amplifier. We study the propagation characteristics of the fibre using the transfer matrix method and present an example of each, the large-mode-area design for high power amplifiers and the wavelength tunable leakage loss design for inherent gain equalization of optical amplifiers.Comment: 6 page

EXTENSIVE RADICULAR CYST OF THE MANDIBLE: A RARE CASE REPORT

The radicular cyst is the most common inflammatory odontogenic cystic lesion of the jaws. It usually originates as a sequel to a periapical inflammatory process, following chemical, physical or bacterial injury. Due to its chronic etiology, the cyst usually appears towards the later stage of life. It has a male sex predilection, with the maxillary anterior region as the most common site of involvement. This article reports a rare case of a large radicular cyst in the mandible, its management and follow up along one year