Medialization laryngoplasty-A study of 15 cases

Type I thyroplasty has become a primary surgical choise for voice restoration in patients with glottal incompetence due to vocal cord palsy. In this study 15 such cases of different etiologies were taken up for medializatioin laryngoplasty and their preoperative und post operative. voice assessment were done. We found that there was significant improvement in loudness: hoarseness and breathiness. Postoperative maximum phonation time also increased to normal limits. There were no major complications of the surgery.     

Theoretical predictions for low-temperature phases,softening of phonons and elastic stiffnesses,and electronic properties of sodium peroxide under high pressure

High-pressure phase stabilities up to 600 K and the related properties of Na₂O₂ under pressures up to 300 GPa were investigated using first-principles calculations and the quasi-harmonic approximation. Two high-pressure phases of Na₂O₂ that are thermodynamically and dynamically stable were predicted consisting of the Amm2 (distorted P$\bar{6}$2m) and the P2₁/c structures, which are stable at low temperature in the pressure range of 0–22 GPa and 22–28 GPa, respectively. However, the P$\bar{6}$2m and Pbam structures become the most stable instead of the Amm2 and P2₁/c structures at the elevated temperatures, respectively. Interestingly, the softening of some phonon modes and the decreasing of some elastic stiffnesses in the Amm2 structure were also predicted in the pressure ranges of 2–3 GPa and 9–10 GPa. This leads to the decreasing of phonon free energy and the increasing of the ELF value in the same pressure ranges. The HSE06 band gaps suggest that all phases are insulators, and they increase with increasing pressure. Our findings provide the P–T phase diagram of Na₂O₂, which may be useful for investigating the thermodynamic properties and experimental verification.

High-pressure phase stabilities up to 600 K and the related properties of Na₂O₂ under pressures up to 300 GPa were investigated using first-principles calculations and the quasi-harmonic approximation.     

Medialization laryngoplasty-A study of 15 cases

Type I thyroplasty has become a primary surgical choise for voice restoration in patients with glottal incompetence due to vocal cord palsy. In this study 15 such cases of different etiologies were taken up for medializatioin laryngoplasty and their preoperative und post operative. voice assessment were done. We found that there was significant improvement in loudness: hoarseness and breathiness. Postoperative maximum phonation time also increased to normal limits. There were no major complications of the surgery.     

Incidence and Management of Hemopericardium: Impact of Changing Trends in Invasive Cardiology

Objective

As invasive cardiovascular care has become increasingly complex, cardiac perforation leading to hemopericardium is a progressively prevalent complication. We sought to assess the frequency, etiology, and outcomes of hemorrhagic pericardial effusions managed through a nonsurgical echo-guided percutaneous strategy.