Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 29
Filter
1.
J Clin Med ; 13(4)2024 Feb 09.
Article in English | MEDLINE | ID: mdl-38398318

ABSTRACT

Ventral incisional hernias are common indications for elective repair and frequently complicated by recurrence. Surgical meshes, which may be synthetic, bio-synthetic, or biological, decrease recurrence and, resultingly, their use has become standard. While most patients are greatly benefited, mesh represents a permanently implanted foreign body. Mesh may be implanted within the intra-peritoneal, preperitoneal, retrorectus, inlay, or onlay anatomic positions. Meshes may be associated with complications that may be early or late and range from minor to severe. Long-term complications with intra-peritoneal synthetic mesh (IPSM) in apposition to the viscera are particularly at risk for adhesions and potential enteric fistula formation. The overall rate of such complications is difficult to appreciate due to poor long-term follow-up data, although it behooves surgeons to understand these risks as they are the ones who implant these devices. All surgeons need to be aware that meshes are commercial devices that are delivered into their operating room without scientific evidence of efficacy or even safety due to the unique regulatory practices that distinguish medical devices from medications. Thus, surgeons must continue to advocate for more stringent oversight and improved scientific evaluation to serve our patients properly and protect the patient-surgeon relationship as the only rationale long-term strategy to avoid ongoing complications.

2.
World J Emerg Surg ; 18(1): 33, 2023 05 11.
Article in English | MEDLINE | ID: mdl-37170123

ABSTRACT

BACKGROUND: Severe complicated intra-abdominal sepsis (SCIAS) has an increasing incidence with mortality rates over 80% in some settings. Mortality typically results from disruption of the gastrointestinal tract, progressive and self-perpetuating bio-mediator generation, systemic inflammation, and multiple organ failure. A further therapeutic option may be open abdomen (OA) management with negative peritoneal pressure therapy (NPPT) to remove inflammatory ascites and attenuate the systemic damage from SCIAS, although there are definite risks of leaving the abdomen open whenever it might possibly be closed. This potential therapeutic paradigm is the rationale being assessed in the Closed Or Open after Laparotomy (COOL trial) ( https://clinicaltrials.gov/ct2/show/NCT03163095 ). Initially, the COOL trial received Industry sponsorship; however, this funding mandated the use of a specific trademarked and expensive NPPT device in half of the patients allocated to the intervention (open) arm. In August 2022, the 3 M/Acelity Corporation without consultation but within the terms of the contract canceled the financial support of the trial. Although creating financial difficulty, there is now no restriction on specific NPPT devices and removing a cost-prohibitive intervention creates an opportunity to expand the COOL trial to a truly global basis. This document describes the evolution of the COOL trial, with a focus on future opportunities for global growth of the study. METHODS: The COOL trial is the largest prospective randomized controlled trial examining the random allocation of SCIAS patients intra-operatively to either formal closure of the fascia or the use of the OA with an application of an NPPT dressing. Patients are eligible if they have free uncontained intraperitoneal contamination and physiologic derangements exemplified by septic shock OR severely adverse predicted clinical outcomes. The primary outcome is intended to definitively inform global practice by conclusively evaluating 90-day survival. Initial recruitment has been lower than hoped but satisfactory, and the COOL steering committee and trial investigators intend with increased global support to continue enrollment until recruitment ensures a definitive answer. DISCUSSION: OA is mandated in many cases of SCIAS such as the risk of abdominal compartment syndrome associated with closure, or a planned second look as for example part of "damage control"; however, improved source control (locally and systemically) is the most uncertain indication for an OA. The COOL trial seeks to expand potential sites and proceed with the evaluation of NPPT agnostic to device, to properly examine the hypothesis that this treatment attenuates systemic damage and improves survival. This approach will not affect internal validity and should improve the external validity of any observed results of the intervention. TRIAL REGISTRATION: National Institutes of Health ( https://clinicaltrials.gov/ct2/show/NCT03163095 ).


Subject(s)
Abdomen , Laparotomy , Humans , Inflammation , Laparotomy/adverse effects , Multiple Organ Failure/etiology , Prospective Studies , United States
3.
Healthcare (Basel) ; 10(7)2022 Jul 11.
Article in English | MEDLINE | ID: mdl-35885811

ABSTRACT

(1) Objective: We aimed to analyze and describe the management of acute biliary pancreatitis (ABP) during the coronavirus disease 2019 (COVID-19) pandemic. (2) Methods: This was a retrospective cohort study among patients with ABP during a control period (16 March 2019 to 15 March 2020; period 1) and a COVID-19 period (16 March 2020 to 15 March 2021; period 2). (3) Results: We included 89 patients with ABP, being 58 in period 1 and 31 in period 2. The mean patient age was 62.75 ± 16.59 years, and 51 (57.3%) patients were women. The Quick Sequential Organ Failure Assessment score for sepsis and World Society of Emergency Surgery Sepsis Severity Score were significantly higher among patients in period 2. Twenty-two patients (37.9%) in period 1 and six (19.3%) in period 2 underwent cholecystectomy. There were no significant differences in surgical interventions between the two periods. The hospital mortality rate was 3.4 and 19.3% in period 1 and period 2, respectively. Mortality was significantly higher in period 2. Conclusion: During the COVID-19 pandemic, we observed a significant reduction in the number of patients with ABP but increased severity and mortality. Multicenter studies with more patients are needed to obtain additional evidence regarding ABP management during the COVID-19 pandemic.

4.
J Int Med Res ; 50(2): 3000605221080875, 2022 Feb.
Article in English | MEDLINE | ID: mdl-35209723

ABSTRACT

OBJECTIVE: Although rare, late-diagnosed atraumatic splenic rupture (ASR) may result in mortality. We investigated the occurrence of ASR cases at our centre over the previous six years. METHODS: This was a retrospective, cross-sectional study that included all patients who underwent emergency splenectomy due to ASR between January 01, 2015, and January 01, 2021. RESULTS: Of the 203 patients who underwent splenectomy, 15 met our criteria for ASR. Median age was 55 years (34-90), and 10 (67%) patients were male. Most common pre-existing diseases were diabetes mellitus (6, 40%) and heart valve disease (5, 33%). Ten (67%) patients had splenic rupture due to splenic infarction and abscess. There were two (13%) cases with diffuse large B cell lymphoma (DLBCL) and two (13%) cases with lung cancer and spleen metastasis. Median length of hospital stay was 6 days (2-24) and three (20%) patients died in hospital. CONCLUSIONS: Male sex, previous splenic infarctions, haematological malignancies, lung cancer spleen metastases, underlying cardiovascular disease and diabetes mellitus may increase the risk for ASR. Further prospective controlled studies are needed to confirm our results.


Subject(s)
Splenic Rupture , Cross-Sectional Studies , Humans , Male , Middle Aged , Retrospective Studies , Rupture, Spontaneous/surgery , Splenic Rupture/surgery , Treatment Outcome
5.
World J Emerg Surg ; 16(1): 49, 2021 09 25.
Article in English | MEDLINE | ID: mdl-34563232

ABSTRACT

Intra-abdominal infections (IAIs) are common surgical emergencies and have been reported as major contributors to non-trauma deaths in hospitals worldwide. The cornerstones of effective treatment of IAIs include early recognition, adequate source control, appropriate antimicrobial therapy, and prompt physiologic stabilization using a critical care environment, combined with an optimal surgical approach. Together, the World Society of Emergency Surgery (WSES), the Global Alliance for Infections in Surgery (GAIS), the Surgical Infection Society-Europe (SIS-E), the World Surgical Infection Society (WSIS), and the American Association for the Surgery of Trauma (AAST) have jointly completed an international multi-society document in order to facilitate clinical management of patients with IAIs worldwide building evidence-based clinical pathways for the most common IAIs. An extensive non-systematic review was conducted using the PubMed and MEDLINE databases, limited to the English language. The resulting information was shared by an international task force from 46 countries with different clinical backgrounds. The aim of the document is to promote global standards of care in IAIs providing guidance to clinicians by describing reasonable approaches to the management of IAIs.


Subject(s)
Anti-Infective Agents , Intraabdominal Infections , Anti-Bacterial Agents/therapeutic use , Anti-Infective Agents/therapeutic use , Critical Pathways , Humans , Intraabdominal Infections/drug therapy , Intraabdominal Infections/surgery , Treatment Outcome
7.
World J Emerg Surg ; 14: 34, 2019.
Article in English | MEDLINE | ID: mdl-31341511

ABSTRACT

Background: Timing and adequacy of peritoneal source control are the most important pillars in the management of patients with acute peritonitis. Therefore, early prognostic evaluation of acute peritonitis is paramount to assess the severity and establish a prompt and appropriate treatment. The objectives of this study were to identify clinical and laboratory predictors for in-hospital mortality in patients with acute peritonitis and to develop a warning score system, based on easily recognizable and assessable variables, globally accepted. Methods: This worldwide multicentre observational study included 153 surgical departments across 56 countries over a 4-month study period between February 1, 2018, and May 31, 2018. Results: A total of 3137 patients were included, with 1815 (57.9%) men and 1322 (42.1%) women, with a median age of 47 years (interquartile range [IQR] 28-66). The overall in-hospital mortality rate was 8.9%, with a median length of stay of 6 days (IQR 4-10). Using multivariable logistic regression, independent variables associated with in-hospital mortality were identified: age > 80 years, malignancy, severe cardiovascular disease, severe chronic kidney disease, respiratory rate ≥ 22 breaths/min, systolic blood pressure < 100 mmHg, AVPU responsiveness scale (voice and unresponsive), blood oxygen saturation level (SpO2) < 90% in air, platelet count < 50,000 cells/mm3, and lactate > 4 mmol/l. These variables were used to create the PIPAS Severity Score, a bedside early warning score for patients with acute peritonitis. The overall mortality was 2.9% for patients who had scores of 0-1, 22.7% for those who had scores of 2-3, 46.8% for those who had scores of 4-5, and 86.7% for those who have scores of 7-8. Conclusions: The simple PIPAS Severity Score can be used on a global level and can help clinicians to identify patients at high risk for treatment failure and mortality.


Subject(s)
Abdomen/physiopathology , Prognosis , Sepsis/diagnosis , Abdomen/abnormalities , Adult , Aged , Chi-Square Distribution , Female , Hospital Mortality , Humans , Injury Severity Score , Logistic Models , Male , Middle Aged , Risk Factors , Sepsis/physiopathology
8.
Asian Pac J Cancer Prev ; 19(9): 2481-2484, 2018 Sep 26.
Article in English | MEDLINE | ID: mdl-30255816

ABSTRACT

Background: Several studies indicate that chemokines play important roles in colorectal mucosal immunity. The chemokine CXCL5 which is expressed by epithelial cells within colorectal mucosa is a promoter of cell proliferation, migration and invasion, is a novel serum prognostic marker in patients with colorectal cancer. The purpose of this study was to investigate whether serum and tissue CXCL5 levels is altered in colorectal carcinomas (CRC) compared to colonic adenoma and normal mucosa.It also aimed to compare colon adenoma and colorectal cancer for blood CXCL5 and CEA levels, their sensitivity, and specificity. Methods: CXCL5 expression was assessed with immunohistochemistry staining in biopsy samples taken during colonoscopy in 22 colonic adenomas, 23 colorectal carcinomas and 23 normal colonic tissue samples. Also all patients' serum CXCL5 and CEA levels were measured. This stduy was prospective observational study. Results: The number of cases who were stained positive with immunohistochemistry was found to be higher in the group with CRC. When compared with the other groups, both levels of serum CXCL5 and CEA were significantly high in the group CRC. Sensitivity and specificity of serum CXCL5 were found to be low as a result of the ROC analysis. Conclusion: Although the level of CXCL5 is high in CRC, its level in serum is not significant enough to support the early diagnosis of the disease.


Subject(s)
Chemokine CXCL5/blood , Colorectal Neoplasms/metabolism , Colorectal Neoplasms/pathology , Adenoma/blood , Adenoma/pathology , Biomarkers, Tumor/blood , Cell Proliferation/physiology , Colon/pathology , Colorectal Neoplasms/blood , Female , Humans , Immunohistochemistry/methods , Male , Middle Aged , Prognosis , Prospective Studies , ROC Curve
9.
World J Emerg Surg ; 13: 19, 2018.
Article in English | MEDLINE | ID: mdl-29686725

ABSTRACT

Background: Acute appendicitis (AA) is the most common surgical disease, and appendectomy is the treatment of choice in the majority of cases. A correct diagnosis is key for decreasing the negative appendectomy rate. The management can become difficult in case of complicated appendicitis. The aim of this study is to describe the worldwide clinical and diagnostic work-up and management of AA in surgical departments. Methods: This prospective multicenter observational study was performed in 116 worldwide surgical departments from 44 countries over a 6-month period (April 1, 2016-September 30, 2016). All consecutive patients admitted to surgical departments with a clinical diagnosis of AA were included in the study. Results: A total of 4282 patients were enrolled in the POSAW study, 1928 (45%) women and 2354 (55%) men, with a median age of 29 years. Nine hundred and seven (21.2%) patients underwent an abdominal CT scan, 1856 (43.3%) patients an US, and 285 (6.7%) patients both CT scan and US. A total of 4097 (95.7%) patients underwent surgery; 1809 (42.2%) underwent open appendectomy and 2215 (51.7%) had laparoscopic appendectomy. One hundred eighty-five (4.3%) patients were managed conservatively. Major complications occurred in 199 patients (4.6%). The overall mortality rate was 0.28%. Conclusions: The results of the present study confirm the clinical value of imaging techniques and prognostic scores. Appendectomy remains the most effective treatment of acute appendicitis. Mortality rate is low.


Subject(s)
Appendectomy/standards , Appendicitis/surgery , Acute Disease/therapy , Adult , Appendectomy/adverse effects , Appendectomy/methods , Chi-Square Distribution , Female , Hospitalization/statistics & numerical data , Humans , Laparoscopy/methods , Laparoscopy/statistics & numerical data , Length of Stay/statistics & numerical data , Logistic Models , Male , Prospective Studies , Tomography, X-Ray Computed/methods , Treatment Outcome
10.
World J Emerg Surg ; 12: 34, 2017.
Article in English | MEDLINE | ID: mdl-28775763

ABSTRACT

BACKGROUND: Antimicrobial Stewardship Programs (ASPs) have been promoted to optimize antimicrobial usage and patient outcomes, and to reduce the emergence of antimicrobial-resistant organisms. However, the best strategies for an ASP are not definitively established and are likely to vary based on local culture, policy, and routine clinical practice, and probably limited resources in middle-income countries. The aim of this study is to evaluate structures and resources of antimicrobial stewardship teams (ASTs) in surgical departments from different regions of the world. METHODS: A cross-sectional web-based survey was conducted in 2016 on 173 physicians who participated in the AGORA (Antimicrobials: A Global Alliance for Optimizing their Rational Use in Intra-Abdominal Infections) project and on 658 international experts in the fields of ASPs, infection control, and infections in surgery. RESULTS: The response rate was 19.4%. One hundred fifty-six (98.7%) participants stated their hospital had a multidisciplinary AST. The median number of physicians working inside the team was five [interquartile range 4-6]. An infectious disease specialist, a microbiologist and an infection control specialist were, respectively, present in 80.1, 76.3, and 67.9% of the ASTs. A surgeon was a component in 59.0% of cases and was significantly more likely to be present in university hospitals (89.5%, p < 0.05) compared to community teaching (83.3%) and community hospitals (66.7%). Protocols for pre-operative prophylaxis and for antimicrobial treatment of surgical infections were respectively implemented in 96.2 and 82.3% of the hospitals. The majority of the surgical departments implemented both persuasive and restrictive interventions (72.8%). The most common types of interventions in surgical departments were dissemination of educational materials (62.5%), expert approval (61.0%), audit and feedback (55.1%), educational outreach (53.7%), and compulsory order forms (51.5%). CONCLUSION: The survey showed a heterogeneous organization of ASPs worldwide, demonstrating the necessity of a multidisciplinary and collaborative approach in the battle against antimicrobial resistance in surgical infections, and the importance of educational efforts towards this goal.


Subject(s)
Anti-Infective Agents/therapeutic use , Antimicrobial Stewardship/methods , Intraabdominal Infections/drug therapy , Postoperative Complications/drug therapy , Cross-Sectional Studies , Global Health/trends , Humans , Surveys and Questionnaires
11.
Turk J Surg ; 33(1): 43-44, 2017.
Article in English | MEDLINE | ID: mdl-28589186

ABSTRACT

The umbilicus is remaining scar tissue from the umbilical cord in the fetus. If the omphalomesenteric duct in the umbilicus is not properly closed, an ileal-umbilical fistula, sinus formation, cysts, or, most commonly, Meckel's diverticulum can develop. The others are very rare and mostly occur in the pediatric population. We describe herein a 61-year-old female with a giant omphalomesenteric cyst presented as an asymptomatic infraumbilical mass. To our knowledge, this is the oldest patient reported and the largest cyst described in the literature. The diagnosis of a painless abdominal mass frequently suggests malignancy in older patients. But, extremely rare conditions can be detected, such as an omphalomesenteric cyst.

12.
Ulus Cerrahi Derg ; 32(1): 23-9, 2016.
Article in English | MEDLINE | ID: mdl-26985165

ABSTRACT

OBJECTIVE: We aimed to investigate the technical feasibility of single-incision laparoscopic cholecystectomy (SILC) with our new facilitative maneuver and to compare it with the gold standard four-port laparoscopic cholecystectomy (LC). MATERIAL AND METHODS: Operation time, cosmetic score and incisional hernia rates between LC (n=20) and SILC-1 (first 20 consecutive operations with the new technique) and 2 (subsequent 20 operations with the new technique) were compared. RESULTS: The median operation time for LC, SILC-1 and SILC-2 were; 35 min (12-75), 47.5 min (30-70), and 30 min (12-80), respectively (p=0.005). The operation duration was similar in LC and SILC-2 (p=0.277) groups. Wound seroma rate was higher in SILC-1 (45%) and SILC-2 (30%) groups than LC (5%) group (p=0.010). Cosmetic score was similar between all the groups. Hernia rates were 15.8% and 5.3% in the SILC-1 and SILC-2 groups, respectively, while there was no hernia in the LC group. CONCLUSION: SILC with new facilitating maneuver is comparable with classical four-port laparoscopic cholecystectomy in terms of ease, operation time, reproducibility and safety. Besides these advantages, the single-incision access technique must be optimized to provide comparable wound complication and postoperative hernia rates before being recommended to patients.

13.
World J Emerg Surg ; 10: 61, 2015.
Article in English | MEDLINE | ID: mdl-26677396

ABSTRACT

BACKGROUND: To validate a new practical Sepsis Severity Score for patients with complicated intra-abdominal infections (cIAIs) including the clinical conditions at the admission (severe sepsis/septic shock), the origin of the cIAIs, the delay in source control, the setting of acquisition and any risk factors such as age and immunosuppression. METHODS: The WISS study (WSES cIAIs Score Study) is a multicenter observational study underwent in 132 medical institutions worldwide during a four-month study period (October 2014-February 2015). Four thousand five hundred thirty-three patients with a mean age of 51.2 years (range 18-99) were enrolled in the WISS study. RESULTS: Univariate analysis has shown that all factors that were previously included in the WSES Sepsis Severity Score were highly statistically significant between those who died and those who survived (p < 0.0001). The multivariate logistic regression model was highly significant (p < 0.0001, R2 = 0.54) and showed that all these factors were independent in predicting mortality of sepsis. Receiver Operator Curve has shown that the WSES Severity Sepsis Score had an excellent prediction for mortality. A score above 5.5 was the best predictor of mortality having a sensitivity of 89.2 %, a specificity of 83.5 % and a positive likelihood ratio of 5.4. CONCLUSIONS: WSES Sepsis Severity Score for patients with complicated Intra-abdominal infections can be used on global level. It has shown high sensitivity, specificity, and likelihood ratio that may help us in making clinical decisions.

14.
Int J Surg Case Rep ; 17: 126-7, 2015.
Article in English | MEDLINE | ID: mdl-26615447

ABSTRACT

INTRODUCTION: Fibroepitheial polyps (FEP) are among the most common benign skin lesions and definitive histology is often needed to exclude malignancy. These polyps are usually less than 5cm in size and are often seen in genito-urinary sites including the perineum. A small number can reach a significant size. PRESENTATION OF CASE: A 46-year-old female patient presented with a pedunculated mass measuring 18cm in diameter, localized to the left perineum. The lesion was excised and the histopathological diagnosis was fibroepithelial polyp. CONCLUSION: We present this case as the third largest FEP recorded in the available literature.

15.
J BUON ; 20(5): 1186-92, 2015.
Article in English | MEDLINE | ID: mdl-26537063

ABSTRACT

PURPOSE: This study was designed to evaluate the value of resection and to analyze clinicopathologic data on gastric cancer patients who were evaluated as curable preoperatively but diagnosed as advanced intraoperatively. METHODS: A retrospective analysis was performed on clinical, surgical, and pathological data of 264 patients who had undergone surgery for gastric cancer between January 2008 and October 2012. The patients who were diagnosed in advanced stages during surgical exploration were accepted into the study group. Patients were categorized into the following two groups: non-resection group (NRG) and resection group (RG). We compared the clinicopathologic features of the two groups and investigated the prognostic factors by performing univariate and multivariate analyses. RESULTS: A total of 79 patients diagnosed with advanced disease in surgical exploration were evaluated. There were 40 patients (50.6%) in the NRG and 39 patients (49.4%) in the RG. The difference in median overall survival between the NRG and the RG was statistically significant (1.7 vs 5 months; p=0.001). In multivariate analysis, age less than 70 years, gastric resection, adjuvant chemotherapy, and male gender were found to be favorable significant independent prognostic factors for overall survival. CONCLUSION: Resection seems to be associated with improved overall survival in patients who were diagnosed as advanced intraoperatively. Therefore, patient and tumor-related factors should be taken into consideration before planning resection. Randomized controlled studies are required.


Subject(s)
Stomach Neoplasms/surgery , Adult , Aged , Aged, 80 and over , Female , Gastrectomy , Humans , Male , Middle Aged , Retrospective Studies , Stomach Neoplasms/mortality , Stomach Neoplasms/pathology
16.
Ulus Cerrahi Derg ; 31(1): 47-8, 2015.
Article in English | MEDLINE | ID: mdl-25931946

ABSTRACT

Sarcoidosis is a systemic inflammatory disease of an unknown etiology. Skin is involved in 25% of all cases, and 29% of them present as a scar sarcoidosis. Asymptomatic old-scar masses are generally regarded as a foreign body reaction by surgeons and often result in excisional biopsy. We describe a case of a patient who developed sarcoidosis in a 34-year-old appendectomy scar and adjacent inguinal lymph nodes without any local or systemic symptom and radiologic finding. Surgeons should not underestimate the importance of such lesions as a simple condition. Scar sarcoidosis may resolve spontaneously, or the treatment with some topical agents is effective. Furthermore, scar sarcoidosis may be the initial manifestation of systemic sarcoidosis.

17.
Int J Clin Exp Med ; 8(11): 21611-6, 2015.
Article in English | MEDLINE | ID: mdl-26885113

ABSTRACT

The aim of this prospective randomized trial was to compare 2 main fixation devices in regard to pain and recurrence in laparoscopic ventral incisional hernia repair (LVIHR). A total of 51 patients were evaluated in this study (n = 25, nonabsorbable tack (NAT) and n = 26, absorbable tack (AT) groups). A visual analogue scale (VAS) was performed on both groups preoperatively and on the postoperative (PO) first day, second week, and sixth month. All patients were followed for recurrence by clinical examination, ultrasonography, and/or abdominal computed tomography. The median follow-up time was 31 months (15-45). The mean age and the mean body mass index (BMI) of the patients were 53.1 ± 11 years and 34 ± 5 kg/m(2), respectively. The median defect size was 60 cm(2) (35-150) and median operation time was 110 minutes (40-360). In 2 patients from AT group and 2 from NAT group (7.8%), recurrence occurred. The 2 groups had similar features regarding demographics, operation time, postoperative hospital stay, morbidity, and VAS scores. The 2 fixation methods were found similar for PO pain and recurrence. In our opinion, the choice of either of these fixation methods during surgery should not be based on the concerns of pain or recurrence. AT may be the preferable option in LVIHR due to the lower cost.

18.
J Breast Health ; 11(2): 98-100, 2015 Apr.
Article in English | MEDLINE | ID: mdl-28331701

ABSTRACT

Carcinoma of the male breast is responsible for less than 1% of all malignancies in men, but the prognosis is poor. Being diagnosed at an older age and advanced stage both affect the prognosis. Surgical treatment of elderly patients with co-morbid diseases is challenging. Unfortunately, these patients do not receive chemotherapy due to poor overall status. Mastectomy with local anesthesia may be an option for these patients. We aimed to present an elderly male patient who underwent successful mastectomy and axillary dissection under local anesthesia.

19.
J Immunol ; 192(12): 5963-73, 2014 Jun 15.
Article in English | MEDLINE | ID: mdl-24813206

ABSTRACT

TLRs 7 and 8 are pattern recognition receptors controlling antiviral host defense or autoimmune diseases. Apart from foreign and host RNA, synthetic RNA oligoribonucleotides (ORN) or small molecules of the imidazoquinoline family activate TLR7 and 8 and are being developed as therapeutic agonists. The structure-function relationships for RNA ORN and imidazoquinoline sensing and consequent downstream signaling by human TLR7 and TLR8 are unknown. Proteome- and genome-wide analyses in primary human monocyte-derived dendritic cells here showed that TLR8 sensing of RNA ORN versus imidazoquinoline translates to ligand-specific differential phosphorylation and transcriptional events. In addition, TLR7 and 8 ectodomains were found to discriminate between RNA ORN and imidazoquinolines by overlapping and nonoverlapping recognition sites to which murine loss-of-function mutations and human naturally occurring hyporesponsive polymorphisms map. Our data suggest TLR7 and TLR8 can signal in two different "modes" depending on the class of ligand. Considering RNA ORN and imidazoquinolines have been regarded as functionally interchangeable, our study highlights important functional incongruities whose understanding will be important for developing TLR7 or 8 therapeutics with desirable effector and safety profiles for in vivo application.


Subject(s)
Oligoribonucleotides/pharmacology , Quinolinium Compounds/pharmacology , RNA/pharmacology , Signal Transduction/drug effects , Toll-Like Receptor 7/immunology , Toll-Like Receptor 8/immunology , Animals , HEK293 Cells , Humans , Mice , Oligoribonucleotides/chemistry , Protein Structure, Tertiary , Quinolinium Compounds/chemistry , RNA/chemistry , Signal Transduction/genetics , Signal Transduction/immunology , Toll-Like Receptor 7/genetics , Toll-Like Receptor 8/genetics
20.
Turk J Emerg Med ; 14(1): 15-9, 2014 Mar.
Article in English | MEDLINE | ID: mdl-27331160

ABSTRACT

OBJECTIVES: Necrotizing fasciitis (NF) is rare but life threatening soft tissue infection characterized by a necrotizing process of the subcutaneous tissues and fascial planes. The Laboratory Risk Indicator for Necrotizing Fasciitis (LRINEC) score has been verified as a useful diagnostic tool for detecting necrotizing fasciitis. A certain LRINEC score might also be associated with mortality. The aims of this study are to determine risk factors affecting the prognosis and to evaluate the prognostic value of the LRINEC score in NF. METHODS: Twenty-five patients with necrotizing fasciitis treated in Samsun Education and Research Hospital between January 2008 and April 2013 were enrolled in the study. Surviving and non-surviving patient groups were compared regarding demographic data, co-morbidity, predisposing factors, causative agents, number of debridements and LRINEC score. RESULTS: Mean age was 55.6±16.79 years (min: 17-max: 84), and the female/male ratio was 16/9. Mortality was observed in 6 (24%) patients. The most frequent comorbid diseases were diabetes mellitus (52) and peripheral circulatory disorders (24%), and the most frequent etiologies were cutaneous (32%) and perianal abscess (20%). Pseudomonas aeruginosa infection was higher in the non-surviving group (p=0.006). The mean number of debridements and LRINEC score were higher in the non-surviving group than in the surviving group (p=0.003 and p=0.003, respectively). CONCLUSIONS: Pseudomans aeruginosa infection and multiple debridements are related with mortality. The LRINEC score might help predict mortality in NF.

SELECTION OF CITATIONS
SEARCH DETAIL
...