Predictive Factors for Difficult Laparoscopic Cholecystectomies in Acute Cholecystitis.

Laparoscopic cholecystectomy (LC) is the gold standard treatment in acute cholecystitis. However, one in six cases is expected to be difficult due to intense inflammation and suspected adherence to and involvement of adjacent important structures, which may predispose patients to higher risk of vascular and biliary injuries. In this study, we aimed to identify the preoperative parameters with predictive value for surgical difficulties. A retrospective study of 255 patients with acute cholecystitis admitted in emergency was performed between 2019 and 2023. Patients in the difficult laparoscopic cholecystectomy (DLC) group experienced more complications compared to the normal LC group (33.3% vs. 15.3%, p < 0.001). Age (p = 0.009), male sex (p = 0.03), diabetes (p = 0.02), delayed presentation (p = 0.03), fever (p = 0.004), and a positive Murphy sign (p = 0.007) were more frequently encountered in the DLC group. Total leukocytes, neutrophils, and the neutrophil-to-lymphocyte ratio (NLR) were significantly higher in the DLC group (p < 0.001, p = 0.001, p = 0.001 respectively). The Tongyoo score (AUC ROC of 0.856) and a multivariate model based on serum fibrinogen, thickness of the gallbladder wall, and transverse diameter of the gallbladder (AUC ROC of 0.802) showed a superior predictive power when compared to independent parameters. The predictive factors for DLC should be assessed preoperatively to optimize the therapeutic decision.

The Significance of Preoperative Neutrophil-to-Lymphocyte Ratio (NLR), Platelet-to-Lymphocyte Ratio (PLR), and Systemic Inflammatory Index (SII) in Predicting Severity and Adverse Outcomes in Acute Calculous Cholecystitis.

The prediction of severity in acute calculous cholecystitis (AC) is important in therapeutic management to ensure an early recovery and prevent adverse postoperative events. We analyzed the value of the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and systemic inflammatory index (SII) to predict advanced inflammation, the risk for conversion, and postoperative complications in AC. Advanced AC was considered the cases with empyema, gangrene, perforation of the gallbladder, abscesses, or difficulties in achieving the critical view of safety. A 3-year retrospective was performed on 235 patients admitted in emergency care for AC. The NLR was superior to the PLR and SII in predicting advanced inflammation and risk for conversion. The best predictive value was found to be at an NLR "cut-off" value of >4.19, with a sensitivity of 85.5% and a specificity of 66.9% (AUC = 0.824). The NLR, SII, and TG 13/18 correlate well with postoperative complications of Clavien-Dindo grade IV (p < 0.001 for all variables) and sepsis. For predicting early postoperative sepsis, TG 13/18 grading >2 and NLR > 8.54 show the best predicting power (AUC = 0.931; AUC = 0.888, respectively), although not significantly higher than that of the PLR and SII. The NLR is a useful biomarker in assessing the severity of inflammation in AC. The SII and PLR may be useful in the prediction of systemic inflammatory response.

The Value of White Cell Inflammatory Biomarkers as Potential Predictors for Diabetic Retinopathy in Type 2 Diabetes Mellitus (T2DM).

The pathogenesis of diabetic retinopathy is still challenging, with recent evidence proving the key role of inflammation in the damage of the retinal neurovascular unit. This study aims to investigate the predictive value of the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte (PLR), lymphocyte-to-monocyte ratio (LMR), and systemic inflammation index (SII) for diabetic retinopathy (DR) and its severity. We performed a retrospective study on 129 T2DM patients, divided into three groups: without retinopathy (NDR), non-proliferative DR (NPDR), and proliferative DR (PDR). NLR, MLR, and SII were significantly higher in the PDR group when compared to NDR and NPDR (3.2 ± 1.6 vs. 2.4 ± 0.9 and 2.4 ± 1.1; p = 0.005; 0.376 ± 0.216 vs. 0.269 ± 0.083 and 0.275 ± 0.111, p = 0.001; 754.4 ± 514.4 vs. 551.5 ± 215.1 and 560.3 ± 248.6, p = 0.013, respectively). PDR was correlated with serum creatinine (OR: 2.551), NLR (OR: 1.645), MPV (OR: 1.41), and duration of diabetes (OR: 1.301). Logistic regression analysis identified three predictive models with very good discrimination power for PDR (AUC ROC of 0.803, 0.809, and 0.830, respectively): combining duration of diabetes with NLR, MLR, and, respectively, PLR, MPV, and serum creatinine. NLR, MPV, SII, and LMR were associated with PDR and could be useful when integrated into comprehensive risk prediction models.

Transabdominal Preperitoneal Versus Lichtenstein Procedure for Inguinal Hernia Repair in Adults: A Comparative Evaluation of the Early Postoperative Pain and Outcomes.

Inguinal hernia repairs are one of the most common procedures in general surgery. In addition to classical open surgery, laparoscopic techniques, such as transabdominal preperitoneal (TAPP) and total extraperitoneal (TEP) hernia repair, have gained acceptance and are increasingly used for inguinal hernia repairs, and these three techniques are the only standards for inguinal hernia repairs. This study aimed to compare the results of inguinal hernia repairs in adult patients using the TAPP patch technique and Lichtenstein techniques regarding the level of pain perceived one day after surgery and the number of days of hospitalization. A two-year study was performed on 129 patients who underwent TAPP vs. 109 patients who underwent Liechtenstein hernia repair. Our results revealed statistical significance for both variables (Tpain(233) = -7.12, p< 0.001, d=2.92; Tdays of hospitalization(233) = -31.34, p< 0.001, d=4.01). TAPP is a safe method for inguinal hernia repairs, allowing quick recovery and less postoperative pain than the classical Liechtenstein technique.

Gut Microbiota Dysbiosis in Diabetic Retinopathy-Current Knowledge and Future Therapeutic Targets.

Diabetic retinopathy is one of the major causes of blindness today, despite important achievements in diagnosis and therapy. The involvement of a gut-retina axis is thought to be a possible risk factor for several chronic eye disease, such as glaucoma, age-related macular degeneration, uveitis, and, recently, diabetic retinopathy. Dysbiosis may cause endothelial disfunction and alter retinal metabolism. This review analyzes the evidence regarding changes in gut microbiota in patients with DR compared with diabetics and healthy controls (HCs). A systematic review was performed on PubMed, Web of Science, and Google Scholar for the following terms: "gut microbiota" OR "gut microbiome" AND "diabetic retinopathy". Ultimately, 9 articles published between 2020 and 2022 presenting comparative data on a total of 228 T2DM patients with DR, 220 patients with T2DM, and 118 HCs were analyzed. All of the studies found a distinctive microbial beta diversity in DR vs. T2DM and HC, characterized by an altered Firmicutes/Bacteroidetes ratio, a decrease in butyrate producers, and an increase in LPS-expressing and pro-inflammatory species in the Bacteroidetes and Proteobacteria phyla. The probiotic species Bifidobacterium and Lactobacillus were decreased when compared with T2DM. Gut microbiota influence retinal health in multiple ways and may represent a future therapeutic target in DR.

Optimal Timing and Outcomes of Minimally Invasive Approach in Acute Biliary Pancreatitis.

BACKGROUND We analyzed the outcomes of early biliary decompression by a minimally invasive approach in acute biliary pancreatitis (ABP). MATERIAL AND METHODS A retrospective study was conducted on 143 patients with ABP who underwent biliary decompression by laparoscopic or endoscopic approach between January 2015 and March 2022. Data from the observation sheets and surgical protocols were analyzed in terms of demographic characteristics, clinical and paraclinical features at admission, comorbidities, therapeutic management, and outcomes. RESULTS The mean patient age was 62.3±11.4 years. Mild ABP had a higher frequency in men (75.5%) and urban areas (70.4%). The comorbidities associated with a higher risk of severe forms were diabetes mellitus (odds ratio [OR]: 11.250), chronic bronchopneumopathy (OR: 29.297), and ischemic coronary disease (OR: 2.784). The mean hospital stay was 7.6±3.8 days and was significantly higher in severe forms (10±2.4 days, P<0.001). The time from onset to presentation was significantly higher in severe vs mild forms (5.6 vs 1.8 days, P<0.001) and was associated with systemic and local complications. Creatinine over 2 mg/dL (OR: 4.821) and leukocytes >15 000/mmc at admission (OR: 3.533) were risk factors for systemic complications, while obesity was associated with increased local complications (OR: 5.179). None of the patients with an early presentation developed severe ABP. CONCLUSIONS Early biliary decompression, as soon as possible after onset, either by an endoscopic or minimally invasive approach, is a safe and effective procedure in ABP. The type of procedure and optimal timing should be individualized, according to the patient's local and general features.

Safety and Outcomes of Intravitreal Aflibercept in Diabetic Macular Edema - A Systematic Review.

BACKGROUND: Recent evidence on the role of vascular endothelial growth factor (VEGF) in the pathogenesis of ischemia and microvascular hyperpermeability leading to macular edema has brought anti-VEGF intravitreal therapy into the limelight. OBJECTIVE: We performed a systematic literature review focusing on the outcomes and safety of the intravitreal use of aflibercept in diabetic macular edema. METHODS: The studies documented cases with at least three consecutive intravitreal injections of aflibercept (IVA) repeated monthly with a follow-up period of at least one year. The outcomes were evaluated in terms of reported functional and anatomical improvement of the macula, as reflected by changes in visual acuity and macular thickness measured by Optical Coherence Tomography (OCT). In addition, for safety assessment, all reported local and general adverse effects were analyzed. RESULTS: All studies showed an overall significant anatomical and functional improvement. In patients with the 5 IVA monthly at the beginning of the therapy, the visual gain at 52 weeks varied widely between 5 and 18.9 EDRS letters, with a mean value of 9.48 letters. The higher gain was obtained in treatment naïve patients, with worse VA and increased CST at baseline. The lower gain was obtained in patients previously treated with anti- VEGF. Anti-Platelet Trialists' Collaboration-defined arterial thromboembolic events were not statistically different between the aflibercept group and the laser group. CONCLUSION: Intravitreal aflibercept therapy provides significant improvement in visual acuity and a good safety profile. Randomized studies are needed to document the optimal frequency of intravitreal injections for optimal treatment.

Serum levels of copper and zinc in diabetic retinopathy: Potential new therapeutic targets (Review).

Diabetic retinopathy (DR) is a microvascular disorder occurring due to the long-term effects of diabetes, leading to vision-threatening damage to the retina. The human body has an elaborate system for managing and regulating the number of key trace metals circulating in the blood and stored cells. Inadequate zinc (Zn) and concurrent excess of copper (Cu) levels are associated with an increased level of oxidative stress, which may aggravate the microvascular lesions in diabetes mellitus. Several studies have revealed a significantly lower serum Zn concentration and increased Cu levels in DR when compared with diabetic patients without retinopathy and normal controls. These abnormalities are correlated with the duration of diabetes and higher levels of HbA1C. Multiple pathological mechanisms are proposed to explain these changes including hyperzincuria associated with polyuria, glycosuria, and proteinuria in diabetic patients, as well as impaired absorption of Zn at the gastrointestinal level. Increased levels of free Cu ions may be attributed to glycation and the release of Cu ions from the Cu-binding sites of proteins. Zn supplements and selective Cu chelators may be useful to alleviate oxidative stress and prevent DR progression.

Ocular Side Effects of Aromatase Inhibitor Endocrine Therapy in Breast Cancer - A Review.

BACKGROUND: Aromatase inhibitor therapy is currently the preferred choice in postmenopausal women with estrogen receptor positive breast cancer. This article reviews the ocular side effects of treatment with aromatase inhibitors (AIs) in patients with breast cancer. MATERIALS AND METHODS: A comprehensive search was performed on PubMed, Web of Science and Google scholar. RESULTS: After duplication removal, 14 clinical studies and 5 case reports, published between 2008 and 2021, were identified. Most frequently, AI treatment resulted in minor to moderate dry eye symptoms. "De novo" onset of Sjogren syndrome during AI therapy was also reported. Retinal and optic nerve side effects varied from mild, subclinical anatomic and functional impairment to severe decreased vision, secondary to hemi-central retinal artery occlusion, bilateral optic neuritis or uveitis with bilateral macular edema. CONCLUSION: Visual disturbances encountered during AI treatment may be underestimated. Ophthalmic screening is important for early detection and appropriate treatment.

Systematic review of the role of indocyanine green near-infrared fluorescence in safe laparoscopic cholecystectomy (Review).

With the widespread introduction of laparoscopic cholecystectomy, the incidence of iatrogenic main bile duct lesions has significantly increased, with incidences ranging from 0.2 to 1.5% according to current studies. Although there are studies regarding the use of indocyanine green (ICG) for improved visualization of the biliary anatomy, there is no consensus on the dose, timing and optimal mode of administration, or the indications in which ICG provides a real benefit through increased safety in laparoscopic cholecystectomy (LC). A systematic review was performed on articles in English published until March 2021, which were identified on PubMed, Springer Nature, Elsevier and Scopus via specific mesh terms: 'Indocyanine green'/'near-infrared fluorescence' and 'laparoscopic cholecystitis'. The most used method of administration of ICG was intravenously, only one study evaluated the efficiency of a near-infrared cholangiogram (NIRC) when ICG was administered directly in the gallbladder. The majority of the studies included in the review used 2.5 mg of ICG administered within 1 h before imaging. The intensity of the NIRC fluorescence signal was revealed to depend on several factors, with obesity and inflammation as the most clinically significant. NIRC was reported to be a simple, feasible, safe and cost-effective procedure, which may improve safety in difficult cases of LC. NIRC use in combination with white light has been demonstrated to be superior to white light alone in identifying extrahepatic biliary anatomy, thus decreasing the risk of intraoperative bile duct injuries (BDI). For its large-scale use, data on a higher number of patients to confirm its clinical value and specific indications is required.

Impact of modern personalized treatment of breast cancer on surgical attitude and outcomes.

Multimodal treatment of breast cancer has made steady progress in recent years. The involvement of modern oncology, diagnostic imaging techniques and surgical treatment, have brought a definite benefit to patients, defining the multidisciplinary treatment of breast cancer. The introduction of immunohistochemical testing and genetic screening has led to the prioritization of therapy according to their results and a correct approach to initiating treatment. The main aim of the present study was to conduct a comparative analysis through a retrospective study of the therapeutic means used in breast cancer with the statistical evaluation of the obtained results. To carry out the study, a group of 125 patients hospitalized during the period January 2015 to December 2020, were included, and the parameters were selected from the observation sheets. The results of the study demonstrated the superiority of multimodal treatment of breast cancer over surgical treatment as the only therapeutic management. The introduction of ultrasound-guided biopsies and conservative surgical options has led to increased diagnostic accuracy and a significant improvement in aesthetic outcome. The multidisciplinary approach to breast cancer allows an individualized treatment by performing immunohistochemical testing and through the use of neoadjuvant and adjuvant treatment combined with conservative surgical techniques with a more favorable cosmetic and oncological result, with reduced postoperative complications.

Optimization of a GF-AAS method for lead testing in blood and urine: A useful tool in acute abdominal pain management in emergency.

Suspicion of lead poisoning is confirmed by its concentration in blood and protoporphyrin red blood cells. At low concentrations, lead influences the synthesis of the heme in the sense of lowering it. Acute and chronic lead intoxication is extremely polymorphic in regards to its clinical manifestations, with digestive, hematological, cardiovascular, renal hepatic and neurological features. The aim of the study was to evaluate the presence of lead in human whole blood and urine harvested before and during chelation treatment in the case of lead poisoning. An atomic absorption spectroscopic method for the analysis of lead was developed using graphite furnace atomic absorption spectrophotometer (GF-AAS), Varian Spectra AA-880 with a hollow cathode lead lamp and a deuterium lamp for background correction, coupled to a GTA-100 atomizer and a programmable sample dispenser. Standard calibration solutions were used for the range 10-100 µg/l. The linearity range was 10.0 to 100.0 µg/l with the correlation coefficient of 0.999. We established that the method can be applied for the determination of lead in whole blood and urine, and the results obtained are useful for monitoring chelation therapy in cases of acute lead poisoning, a neglected cause of abdominal colic pain in an emergency situation.

Outcomes of Diabetic Retinopathy Post-Bariatric Surgery in Patients with Type 2 Diabetes Mellitus.

Bariatric surgery is an emerging therapeutic approach for obese type 2 diabetes mellitus (T2DM) patients, with proven benefits for achieving target glucose control and even remission of diabetes. However, the effect of bariatric surgery upon diabetic retinopathy is still a subject of debate as some studies show a positive effect while others raise concerns about potential early worsening effects. We performed a systematic review, on PubMed, Science Direct, and Web of Science databases regarding the onset and progression of diabetic retinopathy in obese T2DM patients who underwent weight-loss surgical procedures. A total of 6375 T2DM patients were analyzed. Most cases remained stable after bariatric surgery (89.6%). New onset of diabetic retinopathy (DR) was documented in 290 out of 5972 patients (4.8%). In cases with DR at baseline, progression was documented in 50 out of 403 (12.4%) and regression in 90 (22.3%). Preoperative careful preparation of hemoglobin A1c (HbA1c), blood pressure, and lipidemia should be provided to minimize the expectation of DR worsening. Ophthalmologic follow-up should be continued regularly in the postoperative period even in the case of diabetic remission. Further randomized trials are needed to better understand the organ-specific risk factors for progression and provide personalized counseling for T2DM patients planned for bariatric surgery.

Acute Mesenteric Ischemia in COVID-19 Patients.

Acute mesenteric ischemia is a rare but extremely severe complication of SARS-CoV-2 infection. The present review aims to document the clinical, laboratory, and imaging findings, management, and outcomes of acute intestinal ischemia in COVID-19 patients. A comprehensive search was performed on PubMed and Web of Science with the terms "COVID-19" and "bowel ischemia" OR "intestinal ischemia" OR "mesenteric ischemia" OR "mesenteric thrombosis". After duplication removal, a total of 36 articles were included, reporting data on a total of 89 patients, 63 being hospitalized at the moment of onset. Elevated D-dimers, leukocytosis, and C reactive protein (CRP) were present in most reported cases, and a contrast-enhanced CT exam confirms the vascular thromboembolism and offers important information about the bowel viability. There are distinct features of bowel ischemia in non-hospitalized vs. hospitalized COVID-19 patients, suggesting different pathological pathways. In ICU patients, the most frequently affected was the large bowel alone (56%) or in association with the small bowel (24%), with microvascular thrombosis. Surgery was necessary in 95.4% of cases. In the non-hospitalized group, the small bowel was involved in 80%, with splanchnic veins or arteries thromboembolism, and a favorable response to conservative anticoagulant therapy was reported in 38.4%. Mortality was 54.4% in the hospitalized group and 21.7% in the non-hospitalized group (p < 0.0001). Age over 60 years (p = 0.043) and the need for surgery (p = 0.019) were associated with the worst outcome. Understanding the mechanisms involved and risk factors may help adjust the thromboprophylaxis and fluid management in COVID-19 patients.