Epidermal Loss of RORα Enhances Skin Inflammation in a MC903-Induced Mouse Model of Atopic Dermatitis.

Atopic dermatitis (AD) is a chronic inflammatory skin disease featuring skin barrier dysfunction and immune dysregulation. Previously, we reported that the retinoid-related orphan nuclear receptor RORα was highly expressed in the epidermis of normal skin. We also found that it positively regulated the expression of differentiation markers and skin barrier-related genes in human keratinocytes. In contrast, epidermal RORα expression was downregulated in the skin lesions of several inflammatory skin diseases, including AD. In this study, we generated mouse strains with epidermis-specific Rora ablation to understand the roles of epidermal RORα in regulating AD pathogenesis. Although Rora deficiency did not cause overt macroscopic skin abnormalities at the steady state, it greatly amplified MC903-elicited AD-like symptoms by intensifying skin scaliness, increasing epidermal hyperproliferation and barrier impairment, and elevating dermal immune infiltrates, proinflammatory cytokines, and chemokines. Despite the normal appearance at the steady state, Rora-deficient skin showed microscopic abnormalities, including mild epidermal hyperplasia, increased TEWL, and elevated mRNA expression of Krt16, Sprr2a, and Tslp genes, indicating subclinical impairment of epidermal barrier functions. Our results substantiate the importance of epidermal RORα in partially suppressing AD development by maintaining normal keratinocyte differentiation and skin barrier function.

Superior Hypogastric Plexus Nerve Block in Minimally Invasive Gynecology: A Randomized Controlled Trial.

STUDY OBJECTIVE: To assess the efficacy of a superior hypogastric plexus nerve block in reducing opioid requirements in the first 24 hours after minimally invasive gynecologic surgery. DESIGN: Patient-blinded randomized controlled trial. SETTING: Single-center academic institution (Sydney Women's Endosurgery Centre). Two surgeons administering the blocks in their own surgeries. PATIENTS: Patients undergoing either laparoscopic or robot-assisted laparoscopic hysterectomy or myomectomy for benign indications. INTERVENTIONS: Ropivacaine 10 mL (0.75%) infiltrated into the retroperitoneal space overlying the superior hypogastric plexus vs control of no block given at the completion of surgery. MEASUREMENTS AND MAIN RESULTS: The primary outcome was the total opioid use in the first 24 hours after surgery, measured in morphine milligram equivalents (MME). Standardized fentanyl patient-controlled analgesia was given to all patients in the trial. The secondary outcome was pain measured on a visual analog scale (1 to 10) at 1, 2, 6, 12, and 24 hours after surgery. Fifty patients out of 56 approached for the study participated in, and completed, the study (89.2%). The patients were randomized over a 5-month period, March 2020 to July 2020. A total of 27 patients were randomized to receive a nerve block, and 23 were randomized to the control. There was a difference of -21.8 MME in the block group compared with the no-block group (95% confidence interval [CI], -38.2 to -5.5; p = .008). This correlated to a 38% reduction in opioid use in the block group. The mean opioid use in the patients in the block group was 33.1 MME (95% CI, 24.2-41.9) and in those in the no-block group 54.9 MME (95% CI, 40.7-69.1). For the block group, opioid use ranged from 1.0 to 76.5 MME, with an interquartile range of 37 (14-51). For the control group, the range was 7.5 to 113.5 MME, with a higher interquartile range of 60 (28-88). Pairwise comparisons of the mean pain scores over the 24 hours showed a lower pain score with a nerve block of 1.8 (95% CI, 1.5-2.1) compared with a no-block score of 2.6 (95% CI, 2.3-2.9) No adverse effects of local anesthetic toxicity, nerve injury, or bowel/vascular injury were noted in any patient. CONCLUSION: A superior hypogastric plexus nerve block is a simple technique for reducing postoperative opioid requirements and pain in the first 24 hours after minimally invasive gynecologic surgery.

Removing the large uterus without morcellation - The Colpo-V incision for specimen extraction at hysterectomy.

BACKGROUND: Hysterectomy is the most commonly performed benign gynaecological surgery. Recently, the rates of minimally invasive hysterectomy have fallen due to the banning of mechanical morcellation techniques that rendered minimal invasive gynaecology surgeons unable to extract large uteri from the relatively small colpotomy incisions. AIMS: This study aims to share our experience in utilising Colpo-V incision to remove large uterine specimens transvaginally and report its success and complication rates to promote a minimal invasive approach in patients with large uteri without the need to perform large abdominal incisions or transabdominal morcellation. METHODS: This is a prospective case series study in which women with large uteri and|or narrow vaginal canal underwent total laparoscopic hysterectomy and a subsequent posterior vaginal wall incision (Colpo-V) to facilitate the intact extraction of the uterus through the vagina. Patients were seen in the clinic six weeks after the surgery for post-operative assessment and documentation of late complications. RESULTS: Seventeen women underwent the procedure, and the intact extraction of the specimen was successful in 16 out of the 17 cases (94%). No major complications were encountered during or after the procedure. CONCLUSION: Colpo-V incision is a simple and effective technique for the intact extraction of larger uterine specimens at hysterectomy.

Long-term patient-reported outcomes after laparoscopic Burch colposuspension.

BACKGROUND: The negative media attention surrounding vaginal mesh procedures has seen a rise in demand for minimally invasive non-mesh options for the treatment of stress urinary incontinence (SUI). The laparoscopic Burch colposuspension (LBC) is a non-mesh alternative to synthetic midurethral slings (MUS) with similar short-term outcomes. However, long-term outcomes are not well established. AIMS: To evaluate the long-term outcomes of LBC for treatment of SUI in women. MATERIAL AND METHODS: One hundred and fifty-one cases of LBC were performed by a single surgeon over two private hospital settings between January 2010 and January 2016. Follow-up subjective outcomes were obtained in 137 cases (90.7%) utilising standardised questionnaires. Primary outcome was successful treatment of SUI, defined as subjective cure or significant improvement of stress incontinence symptoms. Secondary outcomes included new-onset or worsened symptoms of overactive bladder (OAB), voiding dysfunction, prolapse, and perioperative complications. RESULTS: One hundred and thirty-seven patients were analysed with a mean follow-up of 50.6 months (range: 13-89 months). Primary outcome of successful treatment was achieved in 90.5% of women. New-onset or worsened symptoms of OAB was reported in 10.2%, with a further 8.8% of women experiencing symptomatic voiding dysfunction. Sixteen patients (11.7%) reported new-onset or worsening symptoms of prolapse. There were no major surgical complications. CONCLUSIONS: LBC is a safe and effective long-term treatment for SUI, with low failure rates and minimal adverse outcomes. It is a suitable alternative for women with contraindications to mesh or those having concomitant laparoscopic procedures.

Proteomics as a method for early detection of cancer: a review of proteomics, exhaled breath condensate, and lung cancer screening.

The study of expressed proteins in neoplasia is undergoing a revolution with the advent of proteomic analysis. Unlike genomic studies where individual changes may have no functional significance, protein expression is closely aligned with cellular activity. This perspective will review proteomics as a method of detecting markers of neoplasia with a particular emphasis on lung cancer and the potential to sample the lung by exhaled breath condensate (EBC). EBC collection is a simple, new, and noninvasive technique, which allows sampling of lower respiratory tract fluid. EBC enables the study of a wide variety of biological markers from low molecular weight mediators to macromolecules, such as proteins, in a range of pulmonary diseases. EBC may be applied to the detection of lung cancer where it could be a tool in early diagnosis. This perspective will explore the potential of applying proteomics to the EBC from lung cancer patients as an example of detecting potential biomarkers of disease and progression.

Endometriosis Involving the Sciatic Nerve: A Case Report of Isolated Endometriosis of the Sciatic Nerve and Review of the Literature.

Endometriosis is a common gynecological condition which affects 5-10% of women of reproductive age and up to 50% of women with pelvic pain and infertility. The most commonly affected areas are the pelvic peritoneum, ovaries and rectovaginal septum. Isolated endometriosis of the sciatic nerve is very rare. Our patient suffered from worsening right hip and buttock pain with severe exacerbation during menstruation. Several different imaging modalities (ultrasound of her pelvis and right hip, as well as X-rays and computed tomography scans of her right hip and lumbosacral spine) failed to identify any pathology. Magnetic resonance imaging scans of her pelvis revealed a 3.5 cm endometriotic lesion over the pelvic segment of her right sciatic nerve. Following a multidisciplinary discussion, the patient underwent laparoscopic excision of endometriosis. The patient recovered well from her surgery. She successfully conceived with in vitro fertilization 3 years after her surgery, following a failed course of Clomid (Clomiphene citrate) for ovulatory dysfunction.

Surgical Management of Complete Procidentia in a Female Patient with Bladder Exstrophy-epispadias Complex: Case Report and Literature Review.

We herein describe the operative approach of a postmenopausal woman with a history of surgically corrected congenital bladder exstrophy-epispadias who presented with long-standing complete procidentia. The patient was initially treated by laparoscopic sacral colpopexy in conjunction with a modified Elevate mesh kit anterior vaginal repair with and posterior vaginal wall repair in the form of native tissue suture plication repair. Her prolapse recurred 8 months' later due to a detachment of the mesh at the level of the promontorium. During the second-look laparoscopy, a resuspension of this mesh was deemed unsatisfactory; therefore, with patients' consent, a successful colpocleisis was performed. This case report emphasizes the complexity of pelvic organ prolapse (POP) in the context of a bladder exstrophy-epispadias complex. These women are more likely to fail the more conventional current surgical treatments for POP, coercing to revert to colpocleisis.

Laparoscopic Myomectomy of a 4.2 kg Fibroid with Assistance of a Minilaparotomy.

The improved cosmesis and recovery from minimally invasive techniques has seen a dramatic rise in its popularity. Unfortunately, the laparoscopic myomectomy for large fibroids presents a unique challenge to the surgeon. It is reputed to be difficult and time consuming, with a high risk of conversion to laparotomy. As laparoscopic techniques improve, the laparoscopic myomectomy for larger fibroids is becoming more feasible. This article outlines the case of laparoscopic removal of a 4.2 kg fibroid with the assistance of a minilaparotomy.