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Pneumomediastinum (mediastinal emphysema) is an uncommon condition characterized by the accumulation of air or gas in the mediastinum. Here is a case of a 16-year-old female known to have depression who presented to the emergency department with complaints of shortness of breath, restlessness, chest discomfort, and hoarseness of voice for 2 days. She was initially diagnosed with panic attack, and later on clinical examination, surgical emphysema over the right supraclavicular area was noticed. Chest X-ray was found to be normal, and further imaging with high-resolution computed tomography (HRCT) of the thorax showed pneumomediastinum. In this report, the clinical presentations, radiological features, and management of pneumomediastinum will be discussed.

We analyze optomechanically induced Transparency and asymmetric Fano-line shape Profile in a two-mode cavity system, coupling at weak and strong coupling regimes. The model system consists of one mechanical mode and two optical modes. The transmission shows nonreciprocal behavior. Both the forward transmission and backward reflection for the system are analyzed for both optic-optic and mechanical-optic cavities by considering various system parameters. The output spectra lead to sharp asymmetric Fano-resonance and tunable transparency. Double line-shape profile is observed in the output Spectrum. Our proposal provides a new platform for application in quantum telecommunications and a photonic device like optical Switches.

Purpose: The purpose of the study is to access the prevalence of accessory right inferior hepatic veins and their relevant significance in liver transplantation. Materials and Methods: A retrospective study was done in which the CT of 82 potential liver transplant candidates between January 2012 and March 2013 were reviewed. The presence of the accessory right inferior hepatic vein was examined; the diameters of the accessory inferior hepatic veins and the distance between the point where they open into the inferior vena cava on the coronal plane and to the right hepatic vein-inferior vena cava junction was measured. Results: Out of 82 patients, 42 (51%) had accessory right inferior hepatic veins. Right accessory inferior hepatic veins larger than 3 mm were detected in 23 (28%) patients. The distance of these veins to the right hepatic vein-inferior vena cava junction was more than 4 cm in 13 (15%) patients. Conclusion: The precise preoperative knowledge of accessory right inferior hepatic veins is essential in living donor liver transplantation.

Objectives: To highlight and determine the maternal and neonatal outcome and associated risks for patients who have undergone their 6th and more caesarean sections. Design: Case control study. Setting: Tertiary Centre (Security Forces Hospital – Riyadh – Saudi Arabia). Patients: 80 patients selected to study group who have undergone their sixth and more caesarean sections in Security Forces Hospital. Between June 2006 and May 2010. This group was compared to 80 patients who have undergone their third to fifth caesarean sections during the same time period and immediately following the studied case. Main outcome measured: Age and parity of women in study and the control group were correlated with the number of previous caesarean sections. Intra operative and post-operative maternal complications including presence and grade of adhesions, intra partum and postpartum hemorrhage, use of measurement and methods (both medical and surgical) to control bleeding such as Bakry balloon, Internal iliac artery ligation, etc., were highlighted. Bowel injury, blood transfusion, admission to surgical intensive care, incidence of placenta previa and accreta, post-operative complications like paralytic ileus, wound infection were also noted. Further, neonatal outcome including birth weight, Apgar score, and need for neonatal intensive care unit admission were reviewed. Results: Patients in the study group had higher incidence of extensive adhesions (41.25%) compared to (12.25%) in the control group. Bowel injury was (2.5%) in study group with none in the control group. The incidence of placenta previa was (8.75%) in the study group as compared to (2.5%) in the control group, with placenta accreta complicating (28.57%) of placenta previa seen only in the study group. Blood transfusion was higher in the study group (20%) as compared to (5%) in the control group. Neonatal admission to NICU was higher in the study group (27.5%) in comparison to the control group (12.5%). Also birth weight was lower in the study group. Conclusion: The more the number of caesarean sections, the more the maternal and neonatal morbidity. Patients should have proper counselling during antenatal follow up about the risks of repeated caesarean sections, and offered bilateral tubal ligation after the third or fourth caesarean sections.

Septic arthritis of the shoulder joint is rare and might affect around 3% of the general population [1]. A delay in diagnosis may increase morbidity and lead to bone and cartilage destruction [2]. Septic arthritis is an unusual complication of pregnancy and can progress to permanent arthropathy and disability [3]. Septic arthropathy in pregnancy requires multidisciplinary team involvement for prompt recognition and treatment to improve both maternal and fetal outcomes. High index of suspicion is vital when clinical and laboratory findings suggest septic arthritis. There are multiple predisposing factors reported previously for septic arthritis of the shoulder in pregnancy such as medical conditions, pyelonephritis and trauma. We report a 37 year old lady who presented at 26 weeks gestation with acute left shoulder pain and high temperature following minor left palm trauma. She also had left mastectomy with axillary clearance ten years earlier. She underwent arthroscopic wash out of her left shoulder joint and was covered with antibiotics with rapid improvement and recovery. We reinforce the importance of early multidisciplinary involvement when septic arthritis of the shoulder in pregnancy is suspected especially in women who have had previous mastectomy and axillary clearance which could be a predisposing factor for such a rare and serious joint condition in pregnancy.

Determination of the detector efficiency using volumetric cylindrical sources is very important in various scientific and industrial fields, especially in the field of quantitative analysis. To calculate the absolute activity of any sample, the full-energy peak efficiency (FEPE) of the detector is needed. By applying the efficiency transfer method, the FEPE of the detector would be determined easily without using the standard sources. This approach depends on two main factors. The first one, is the reference efficiency of the reference source, which is determined experimentally, and the second one, is the calculation of the effective solid angle ratio between the sample and the reference source geometries. This work introduces an empirical formula for calculating the second factor for using two different sizes of NaI(Tl) detectors. The validity of this empirical formula was successfully demonstrated by comparing the calculating values with the experimental values.

Morbidity and mortality of HIV-infected patients have been improved over the last decades with the advent of combined antiretroviral therapy. As a result, other comorbidities such as chronic kidney and chronic liver diseases have emerged in the HIV population. A considerable percentage of end-stage liver disease (ESLD) in HIV population is attributed to hepatitis C co-infection and reactivation, and a growing need for solid organ transplantation has emerged among those patients. On the other hand, several studies on liver transplantations of patients co-infected with human immunodeficiency virus (HIV) and hepatitis C virus (HCV) have shown discouraging results both in patient and graft survival rates. As a result, HIV-HCV co-infection has been considered a relative contraindication for liver transplantation. Thankfully, new drugs for HCV treatment have been discovered, acting direct on viral replication of HCV and they have changed the whole clinical course of HCV/HIV co-infected liver transplant recipients. Our case illustrates the long-term efficacy and safety of the new combination of Sofosbuvir/Ledipasvir in HCV/HIV co-infected liver transplant recipients.

Basic control theory equations are developed showing conventional exponential system response of refraction vs. time R (t) with a characteristic system time constant, in response to a step change of near work environmental conditions. Details from preliminary experimental design using reading glasses at the U.S. Naval Academy at Annapolis are discussed. The conclusion is that (+) add lenses, used as reading glasses during study, can prevent the development of myopia for college students in pilot training.

The current study was carried out to translate, adapt and validate Depression, Anxiety and Stress Scale in Urdu language and in Pakistani culture. The current translation was aimed to produce a more user friendly and clinically applied version of DASS. The systematic procedure involved in translation focused on maximizing levels of semantic and conceptual equivalence. A test re-test pilot study was conducted on 30 participants to analyze the translated version initially, the results of which determined a significant positive correlation between original and translated versions. The main study involved 300 conveniently selected Pakistanis. The findings revealed that the translated version titled U-DASS-42 was highly reliable and valid in Pakistani culture. The newly developed U-DASS-42 is attached with this paper for the convenience of Pakistani researchers.

Ranitidine is a widely used drug in Europe and its intake is usually well tolerated. Hypersensitivity reactions due to ranitidine are uncommon. The immediate mild reactions type are the most prevalent. In some special cases a delayed type reaction such as contact dermatitis or severe reactions with systemic involvement have been reported. In the present paper, a case report of a 78-year old patient who experienced a maculopapular eruption after 7 days of oral treatment with ranitidine is described. Patch tests were performed twice with ranitidine with positive results confirming the diagnosis. In order to discard a double sensitization and a possible cross-reactivity phenomenon, patch test was performed once with famotidine, with a negative result. This is the first maculopapular exanthema reported as type IV hypersensitivity reaction to ranitidine confirmed by patch testing. Moreover, there are only two reported cases showing a double sensitization to ranitidine and to other H2-receptor antagonists by patch testing after a delayed reaction due to ranitidine, the other being H2-receptor antagonists involving cimetidine and nizatidine, not famotidine.