sigmoiditis

Idiopathic acute rectal necrosis (IARN) is a rare condition due to a robust rectal blood supply. This report describes an 83-year-old man presenting with septic shock due to distal sigmoid and complete rectal necrosis with perforation. He underwent emergent exploratory laparotomy, sigmoid and proximal rectum resection, and end sigmoid colostomy creation with delayed distal rectal evaluation. Bedside proctoscopy revealed pale, viable-appearing distal rectal mucosa on postoperative day 3. The patient had a protracted, complicated hospital stay but required no further operative intervention...

BACKGROUND AND PURPOSE: Image-guided adapted brachytherapy (IGABT) is superior to other radiotherapy techniques in the treatment of locally advanced cervical cancer (LACC). We aimed to investigate the benefit of interstitial needles (IN) for a combined intracavitary/interstitial (IC/IS) approach using IGABT over the intracavitary approach (IC) alone in patients with LACC after concomitant external beam radiotherapy (EBRT) and chemotherapy. MATERIALS AND METHODS: We included consecutive patients with LACC who were treated with IC/IS IGABT after radiochemotherapy (RCT) in our retrospective, observational study...

Ischemic colitis (IC) occurs when there is a temporary lack of adequate blood supply to the intestines, particularly in vulnerable areas such as the splenic flexure and sigmoid colon, which lack sufficient collateral blood vessels. Although primarily seen in older individuals with atherosclerotic risk factors, IC can also be triggered by hormonal contraceptives in young women. Although estrogen-containing oral contraceptives are known to increase thromboembolic risk, the impact of progesterone is not well understood...

Pulsatile tinnitus (PT) is the perception of an auditory sensation without an external source and in synchrony with the heartbeat. One of the most common cases of PT is bony anomalies of the sigmoid sinus, including dehiscence or diverticula. This case report describes a 26-year-old female patient who presented with pulsatile tinnitus caused by sigmoid sinus diverticula and dehiscence, which was successfully treated with cortical mastoidectomy with diverticula closure using pedicled temporalis fascia and resurfacing of the dehiscence with autogenous bone pate along with bone cement...

RATIONALE: Observational studies suggest that high-dose isoniazid may be efficacious in treating multidrug-resistant tuberculosis (MDR-TB). However, its activity against Mycobacterium tuberculosis ( M.tb ) with katG mutations (which typically confer high-level resistance) is not established. OBJECTIVE: To characterize early bactericidal activity (EBA) of high-dose isoniazid in patients with tuberculosis caused by katG -mutated M.tb . METHODS: A5312 was a Phase 2A randomized, open-label trial...

BACKGROUND: Foreign body granulomas are postoperative inflammatory reactions to surgical materials within the body. Traditionally, sutures have been the leading cause of foreign body granulomas in the abdomen, commonly referred to as "suture granuloma". However, the use of polymer clips in modern surgeries has introduced new challenges, and reports of intra-abdominal foreign body granulomas caused by surgical clips are limited. Herein, we present a case of an intra-abdominal foreign body granuloma formed due to polymer clips...

KEY CLINICAL MESSAGE: Adult intussusception commonly has a leading point. In the colon, malignancy is a prevalent etiology for the leading point; however, benign tumors should also be considered. We present a case of colorectal intussusception caused by a giant lipoma. ABSTRACT: Intussusception in adults is comparatively infrequent in contrast to children, and in adult colonic intussusception, malignancy is the predominant cause of the leading point. Lipoma, an uncommon tumor in the gastrointestinal tract, rarely induces colonic intussusception in adults...

Complex temporal bone anatomy complicates operations; thus, surgeons must engage in practice to mitigate risks, improving patient safety and outcomes. However, existing training methods often involve prohibitive costs and ethical problems. Therefore, we developed an educational mastoidectomy simulator, considering mechanical properties using 3D printing. The mastoidectomy simulator was modeled on computed tomography images of a patient undergoing a mastoidectomy. Infill was modeled for each anatomical part to provide a realistic drilling sensation...

An electro-optical programmable nonlinear function generator (PNFG) is developed on a multimode waveguide with four parallel thermal electrodes. The current on one electrode is chosen as the input, while the rest serve as function-defining units to modulate the multimode interference. The electro-thermo-optical effects are analyzed step by step and the impact on the eigenmode properties is derived. It shows that the optical output power variation by altered interference, in response to the input current, manifests as a complex ensemble of functions in general...

A general theory is developed to explain the expansion kinetics of a polymer released from a confining cavity in a d -dimensional space. At beginning, the decompressed chain undergoes an explosive expansion while keeping the structure resembling a sphere. As the process continues, the chain transitions to a coil conformation, and the expansion significantly slows down. The kinetics are derived by applying Onsager's variational principle. Computer simulations are then conducted in a quasi-two-dimensional space to verify the theory...

Vascular anomalies known as dural arteriovenous fistulas (DAVFs) occur when arteries that emerge from carotid or vertebral artery branches empty straight into the dural venous sinuses. A 16-year-old male patient at the center of this case study initially arrived at the hospital with symptoms of generalized tonic-clonic seizures and headaches accompanied by vomiting, followed by right-sided hemiparesis and subsequently left-sided hemiparesis. An MRI brain with MR angiography was performed, revealing an abnormal fistulous connection between the sigmoid and transverse sinus and the branches of the bilateral external carotid and right internal carotid artery...

Volvulus describes the twisting of the intestine or colon around its mesentery. Intestinal obstruction and/or ischaemia are the most common complications of volvulus. Within the gastrointestinal tract, there is a preponderance towards colonic volvulus. The sigmoid is the most commonly affected segment, followed by the caecum, small intestine and stomach. Distinguishing between the differing anatomical locations of gastrointestinal volvulus can be challenging, but is important for the management and prognosis...

No abstract text is available yet for this article.

BACKGROUND: Müllerian agenesis, known as Mayer-Rokitansky-Küster-Hauser syndrome, is characterized by an absent uterus, cervix, and two-thirds proximal vagina (1). To allow sexual intercourse, dilatators-based conservative approaches and Vecchietti vaginoplasty generate progressive traction on the vaginal stump until adequate vaginal size is achieved. Other approaches create the neovagina using mucous/cutaneous, peritoneal, or ileal/sigmoid grafts or cutaneous flaps from the genitalia to fulfill a newly developed space between the bladder and rectum...

INRODUCTION: Mucinous cystic neoplasms are rare tumors. They may originate from either ovaries, pancreas, or other intra-abdominal sites, but rarely from the mesentery. CASE HISTORY: A 22-year-old nulliparaous woman, who had undergone laparascopic bilateral cystectomy for recurrent ovarian mass, presented with pain in abdomen, backache, and menstrual irregularities. Provisionally diagnosed as ovarian carcinoma, she underwent bilateral salpingo-oophorectomy and sigmoid colectomy...

No abstract text is available yet for this article.

A 39-year-old woman presented at 29 weeks and 4 days of gestation with abdominal pain and chronic constipation. The abdominopelvic magnetic resonance and ultrasound imaging were not conclusive. Computed tomography showed evidence of bowel perforation. Surgical exploration demonstrated significant stool burden, purulent peritonitis, and frank perforation of the sigmoid colon. Hartmann's procedure was successfully performed, with no complications. The patient had an uneventful postoperative course. She was induced at 37 weeks due to preeclampsia and had a vaginal delivery with no complications...

Sigmoid volvulus is a common cause of colonic obstruction worldwide and constitutes the majority of all cases of colonic volvulus. It is more prevalent in those who are older than 70 years. The sigmoid colon, an S-shaped portion of the large intestine, is susceptible to this condition due to its redundancy and mobile nature. Treatment involves endoscopic detorsion with sigmoidectomy. Laparoscopic surgery has been found to be useful in terms of reduced morbidity, blood loss, analgesics, and hospital stay; contrarily, surgical management has been found to be associated with reduced recurrence...

Introduction: The plant-based alkaloid muscimol is a potent agonist of inhibitory GABAA -neurotransmitter receptors. GABAA receptors are a heterogeneous family of pentameric complexes, with 5 out of 19 subunits assembling around the central anion pore. Muscimol is considered to bind to all receptor subtypes at the orthosteric drug binding site at the β+/α- interface. Recently, we observed that the antipsychotic drugs clozapine (CLZ), loxapine (LOX) and chlorpromazine (CPZ) although exerting functional inhibition on multiple GABAA receptor subtypes showed diverging results in displacing 3H-muscimol...

BACKGROUND: Dissatisfaction after total knee arthroplasty (TKA) ranges from 15 to 30%. While patient selection may be partially responsible, morphological and reconstructive challenges may be determinants. Preoperative computed tomography (CT) scans for TKA planning allow us to evaluate the hip-knee-ankle axis and establish a baseline phenotypic distribution across anatomic parameters. The purpose of this cross-sectional analysis was to establish the distributions of 27 parameters in a pre-TKA cohort and perform threshold analysis to identify anatomic outliers...