Cirugia Y Cirujanos最新文献

Background: COVID-19 pandemic had a negative impact on colorectal cancer (CRC) screening programs.

Objective: The care strategy was modified throughout the pandemic, this paper evaluates its impact and short-term consequences.

Methods: A retrospective, descriptive and cross-sectional study was carried out in a private ambulatory endoscopic center, in average risk subjects. The study compared two periods: pre-pandemic and pandemic (subdivided into pre-vaccination and vaccination).

Results: During this period, 54.4% of scheduled colonoscopies were due to the screening program. The average age was 60.4 ± 7 years. Women were 52.0%. The overall cancellation rate was 41.1%, higher during pre-vaccination period. There were no differences in the degree of colonic cleansing, colonoscope exit time, and patient satisfaction. The adenoma detection rate (38.4% vs. 42.8% vs. 36.4%; p = 0.8) and the total number of adenomas (p = 0.02) was statistically significant during the pre-vaccination period. The rate of adenoma/patient showed a higher trend during this period (p = 0.06). The number of colorectal cancers was 10, without differences between periods.

Conclusion: In conclusion, the impact of the decrease in screening colonoscopy procedures for CRC detection was similar to what was seen worldwide. In this period no increase in cancer cases, although this effect may be observed in the long term.

Background: Bone neoplasms are usually misdiagnosed causing a delay in their treatment. Bone neoplasms are usually confused with tendinitis, 31% of the cases corresponds to osteosarcomas and in 21% to Ewing's sarcomas.

Objective: To create a clinical-radiographic instrument of high diagnostic suspicion of knee bone neoplasms to prevent a delay in diagnosis.

Method: A clinimetric study (sensitivity, consistency and validity) was performed in the bone tumor service, Hospital de Ortopedia de la Unidad Médica de Alta Especialidad Dr. Victorio de la Fuente Narváez, Instituto Mexicano del Seguro Social, in México City.

Results: Characteristics of 153 patients were collected. For the sensitivity phase, 3 domains (signs, symptoms, and radiology) and 12 items were included. Consistency was evaluated with ICC (0.944), 95%CI (0.865-0.977), p < 0.001 and a-Cronbach (0.863). Index obtained a sensitivity of 0.80 and a specificity of 0.882 were obtained. The positive predictive value of the test was 66.6% and the negative predictive value was 93.75%. The positive likelihood ratio was 6.8 and the negative likelihood ratio was 0.2. Validity was evaluated using r-Pearson (0.894; p < 0.001).

Conclusions: A high suspicion clinical-radiographic index was designed to detect malignant knee tumors with adequate sensitivity, specificity, appearance, content, criteria, and construct validity.

Artificial Intelligence (AI) has the potential to change many aspects of healthcare practice. Image discrimination and classification has many applications within medicine. Machine learning algorithms and complicated neural networks have been developed to train a computer to differentiate between normal and abnormal areas. Machine learning is a form of AI that allows the platform to improve without being programmed. Computer Assisted Diagnosis (CAD) is based on latency, which is the time between the captured image and when it is displayed on the screen. AI-assisted endoscopy can increase the detection rate by identifying missed lesions. An AI CAD system must be responsive, specific, with easy-to-use interfaces, and provide fast results without substantially prolonging procedures. AI has the potential to help both, trained and trainee endoscopists. Rather than being a substitute for high-quality technique, it should serve as a complement to good practice. AI has been evaluated in three clinical scenarios in colonic neoplasms: the detection of polyps, their characterization (adenomatous vs. non-adenomatous) and the prediction of invasive cancer within a polypoid lesion.

Background: There are limited data about the perioperative outcomes of coronavirus disease 2019 (COVID-19) patients that needed emergency general surgery. The aim of the present study was to describe the perioperative outcomes and mortality of patients with COVID-19 who underwent emergency surgery.

Materials and methods: Retrospective study of COVID-19 patients symptomatic versus asymptomatic from March 2020 to February 2022 that needed an emergency surgery in a national referral hospital.

Results: Forty-four patients were included in this study. Patients with symptomatic COVID-19 have higher ICU admissions and prolonged length of stay (LOS) as compared with asymptomatic COVID-19 patients. The 90-day survival probability of the entire cohort was 70.1% (60.3-79.9) and was significantly lower in patients with COVID-19 symptomatic 63.4% (50.5-76.2). The cut-off preoperative values for the prediction of mortality: Ferritin ≥ 438.5 ng/mL (Area under the curve [AUC] = 0.908), C-reactive protein (CRP) ≥ 12.5 mg/dL (AUC = 0.715), leukocyte ≥ 13.8 × 10³/mL (AUC = 0.706), and albumin ≤ 2.78 g/dL (AUC = 704). Furthermore, a cut-off value of CRP of ≥ 12.5 mg/dL yielded an accuracy of 82.9% for the prediction of postoperative complications (p < 0.001).

Conclusion: Patients with symptomatic COVID-19 who needed emergency surgery have higher ICU admissions, prolonged LOS, and decreased 90-day survival as compared with asymptomatic COVID-19 patients. Preoperative ferritin, CRP, leukocytes, and albumin could be used as predictors of mortality.

Objective: To describe and analyze the exposure to ionizing radiation of orthopedic residents.

Method: A prospective study was carried out to evaluate the degree of exposure to ionizing radiation with a bandage dosimeter placed under the lead apron for medical residents for 10 months. An online survey measured the degree of knowledge about radiation safety.

Results: 54 resident physicians participated. 55.6% report having knowledge of the existence of radiological protection equipment and 40.7% report that they had previous training in its use. 77.8% use the leaded apron and 31.5% use thyroid protection. 81.5% were positioned less than 1 meter from the source of the X-ray production of the arc in C. The total mean radiation exposure was 2.9 ± 2.17 mSv (95% confidence interval: 1.25-14.28; p = 0.424).

Conclusions: Orthopedic residents present radiation doses below the International Commission on Radiological Protection recommended limit. However, there is a lack of knowledge of radiation protection and as well as a lack of interest and ignorance of the adverse effects of radiation.

Background: Metabolic complications have become more relevant in the care of patients with HIV. However, little is known about the incidence and risk factors for these disorders among HIV-infected antiretroviral treatment naïve (ARTn) patients.

Objective: To recognize the prevalence of Impaired Fasting Glucose (IFG) and dyslipidemia among HIV-infected ARTn Mexican individuals and identify associated risk factors.

Method: A retrospective study was conducted in HIV-1-infected ART-N patients, referred for attention to a general hospital in Mexico City, between 2009 and 2019. We collected information for anthropometric, clinical, biochemical and HIV status variables.

Results: We included 221 patients, 97% were males, mean age 30 years (interquartile range [IQR]: 25-38); median CD4 count was 250 cells/mm³ (IQR: 120.25-391) and median log10 HIV viral load was 4.69 HIV-1 RNA copies/ml (IQR: 3.64-5.25). Prevalence of IFG was 22.6% and was associated with overweight-obesity (odds ratio [OR]: 2.75; 95% confidence interval [95% CI]: 1.36-5.55; p-value < 0.05). Hypoalphalipoproteinemia was the most frequent dyslipidemia: 69.46%. An association between count CD4 < 250 and lower HDL cholesterol levels was found (OR: 3.23; 95CI%: 1.61-6.5; p-value < 0.05).

Conclusions: IFG and dyslipidemia are highly prevalent among HIV-infected ART-naïve Mexican patients, therefore, screening for glucose and lipids abnormalities always should be considered among ARTn patients.

Objective: To determine the incidence of adverse reactions (AR) after the first dose of Pfizer-BioNTech vaccine, and to identify some factors associated with AR.

Method: A retrospective cohort study was conducted. Data were obtained through an epidemiological survey answered online. Multivariate analyses were performed to identify factors associated with early (< 2 h) and late (≥ 2 h) AR.

Results: A total of 2295 health care workers were included; in them, the cumulative incidence of AR was 18.2% (95% confidence interval: 16.6-19.8), where the majority were late (78.2%). The associated factors that increased the risk of early AR were being female (odds ratio [OR]: 2.23, p = 0.002) and belonging to the medical staff (OR: 1.56; p = 0.041). In late AR were being female (OR: 1.94; p < 0.0001); on the other hand, diabetes (OR: 0.46; p = 0.021), asthma (OR: 0.53; p = 0.040) and smoking (OR: 0.44, p = 0.002) were inversely associated factors. Interestingly, history of COVID-19 was not associated with either early or late AR.

Conclusions: The risk of presenting some type of AR due to the Pfizer-BioNTech vaccine in health care workers is < 20%.

Post-incisional ventral hernia is estimated at 5-30%, when the content of the abdominal cavity migrates to the hernial sac (HSV), with a HSV/abdominal cavity volume ratio > 25%, conditioning systemic changes defined as "loss of domain". A 27-year-old male presented with ventral hernia with loss of domain that required pre-operative preparation techniques, using application of botulinum toxin A (IncobotulinumtoxinA) and pneumoperitoneum, both guided by image. A ventral plasty was performed with adequate return of the viscera to the abdominal cavity. The combination of both techniques seems to be a safe procedure to carry out a tension-free repair.

Introduction: Spigelian hernia is a rare entity, with higher improbability of acute appendicitis within it.

Case report: A 75-year-old female with a 30-year evolution hernia, abdominal pain, and fever of 1 week of onset, in whom was found an acute appendicitis within a Spigelian hernia.

Discussion: Spigelian hernia comprises 0.12-2% of all abdominal hernias. Presurgical diagnosis is stablished only in 50% of cases, with an hernial ring less than 2 cm and hidden localization. There isn't statistics of this complication because of the lack of case reports.