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A logistic model using age, sex, abdominal pain, C-reactive protein, and the presence of bilateral infiltrate as predictors had an excellent discrimination (AUC 0.88, 95% CI 0.81-0.96) and calibration (p = 0.27-Hosmer-Lemeshow test). The clinical use of our screening prediction model could improve the discrimination of SARS-CoV-2 related from other community-acquired pneumonias and thus help patient triage based on commonly used diagnostic approaches. However, external validation in independent datasets is required before its clinical use.

Postoperative hypocalcemia after total thyroidectomy (TT) still remains common. This prospective observation study examined the role of intraoperative time period (IOP) and intravenous fluids (IVF) in transient and permanent (> 6months) hypocalcemia post-TT.

Consecutive patients (n = 328; age = median (IQR); 34 (15) years; MF = 65263) with benign or malignant thyroid disease undergoing TT were evaluated for IOP, intraoperative IVF, serum corrected calcium, intact parathormone (iPTH), and 25-hydroxyvitamin D (25OHD) levels at baseline, 48h, and 6months post-TT.

The incidence of symptomatic transient and permanent hypocalcemia post-TT was 33.5% and 7.9% respectively. In multivariate logistic regression analysis, the independent risk factors for transient hypocalcemia were IOP (odds ratio 11.6), 48-h iPTH (4.8), IVF (2.9), hyperthyroidism (2.8), and percent calcium decline (1.07), while 25OHD deficiency increased the risk by 10.5 odds in subset with preoperative hypocalcemia. In receiver operating characteristic analysis, IOP, and IVF strongly predicted transient hypocalcemia with a threshold of 123min and 1085mL. Area under the curve, sensitivity, and specificity were 0.883 (95% CI 0.838-0.928), 88.1%, and 74.4% and 0.883 (0.840-0.926; each P = 0.001), 84.4%, and 74.4% respectively. Serum 48-h calcium < 7.8mg/dL was the only reliable predictor of permanent hypocalcemia.

Operative duration > 123min and IVF > 1085mL increased the risk of transient hypocalcemia post-TT manyfold but not permanent hypocalcemia. Routine intraoperative identification, preservation of viable in situ parathyroid glands, and laryngeal nerves increased IOP and rates of transient hypocalcemia but improved long-term outcome.

 1085 mL increased the risk of transient hypocalcemia post-TT manyfold but not permanent hypocalcemia. Routine intraoperative identification, preservation of viable in situ parathyroid glands, and laryngeal nerves increased IOP and rates of transient hypocalcemia but improved long-term outcome.

The aim of this study was to evaluate the anal function in patients with trans-sphincteric anal fistulas who underwent an anal fistula plug procedure, and analyze risk factors that might affect post-operative anal function.

This was an observational, retrospective study of patients diagnosed with trans-sphincteric anal fistulas and initially underwent anal fistula plug procedures between August 2008 and September 2012 at our institute. The analysis includes clinical characteristics, anal fistula healing, and the Wexner score for pre- and post-operative anal function (0 = no incontinence to 20 = complete incontinence).

A total of 123 patients who had an adequate follow-up in the end were included. The median duration of follow-up was 8years (range 72-121months). The overall healing rate was 56% (69/123), and 33 (26.8%) patients had decreased anal function after surgery. The post-operative Wexner score on anal function was significantly higher than that before the operation (p < 0.001), as well as scorherapy.

This study evaluated the differences in long-term cardiovascular events between obese patients who received bariatric surgery (BS), those who did not, and the general population (GP).

Between 2003 and 2008, patients with severe obesity, aged 18-55years, were divided into the non-surgical (NS) and BS groups and were included in this retrospective study. We also extracted data of healthy civilians defined as the GP. The incidence of cardiovascular events, including myocardial infarction, intracranial hemorrhage, epidural hemorrhage, ischemic stroke, and transient ischemic attack, was defined as the primary end point. Patients were followed up either until the end of 2013, upon reaching the primary end point, or death.

After propensity score matching, 1436 patients were included in both the BS and NS groups, and 4829 subjects were enrolled as the GP. Of these, 57 (3.9%), 10 (0.6%), and 30 (0.62%) subjects in the NS, BS, and GP, respectively, experienced cardiovascular events. Multivariate analysis revealed that patients with BS had a significantly lower risk of cardiovascular events (HR = 0.168; 95% CI 0.085-0.328; p < 0.001) than those in the NS group, but it was not significantly different in the BS group compared with the GP (HR = 1.202; 95% CI 0.585-2.471; p = 0.617).

Long-term risk of cardiovascular events was significantly lower among patients who had BS, compared to the NS obese patients. Thus, the long-term cardiovascular risk between those who received BS and the GP had no significant difference, in a retrospective view.

Long-term risk of cardiovascular events was significantly lower among patients who had BS, compared to the NS obese patients. Thus, the long-term cardiovascular risk between those who received BS and the GP had no significant difference, in a retrospective view.Some semelparous organisms in nature mate as many times as they can in a single reproductive episode before death, while most iteroparous species including humans avoid such suicidal reproductive behavior. Animals naturally pursue more sex and the possible fatal consequence of excessive sex must be orchestrated by negative feedback signals in iteroparous species, yet very little is known about the regulatory mechanisms. Here we used Drosophila male sexual behavior as a model system to study how excessive sex may kill males and how the nervous system reacts to prevent death by sex. We found that continuous sexual activity by activating the fruitless-expressing neurons induced a fixed multi-step behavioral pattern ending with male death. We further found negative feedback in the fly brain to prevent suicidal sexual behavior by expression changes of the neurotransmitters acetylcholine and gamma-aminobutyric acid, and neuropeptide F. These findings are crucial to understand the molecular underpinnings of how different organisms choose reproductive strategies and balance reproduction and survival.

Residency programs need to understand the competencies developed by residents during an intensive care unit (ICU) rotation, so that curricula and assessments maximize residents' learning. The primary study objective was to evaluate the feasibility for training programs and acceptability by residents of conducting a multi-competency assessment during a four-week ICU rotation.

We conducted a prospective, multicentre observational pilot study in three ICUs. During weeks 1 and 4 of an ICU rotation, we conducted repeated standardized assessments of non-critical care specialty residents' competencies in cognitive reasoning (script concordance test [SCT]), procedural skills (objective structured assessment of technical skills [OSATS]-global rating scale], and communication skills through a written test, two procedural simulations, and a simulated encounter with a "family member". The feasibility outcomes included program costs, the proportion of enrolled residents able to complete at least one three-station asserove during a four-week ICU rotation, whereas communication skills may not.

A monthly multi-competency assessment for specialty residents rotating in the ICU is likely feasible for most programs with appropriate resources, and generally acceptable for residents. Specialty residents' cognitive reasoning and procedural skills may improve during a four-week ICU rotation, whereas communication skills may not.

Neurologic determination of death (NDD) is legally accepted as death in Canada but remains susceptible to misunderstandings. In some cases, families request continued organ support after NDD. Conflicts can escalate to formal legal challenges, causing emotional, financial, and moral distress for all involved. We describe prevalence, characteristics, and common experiences with requests for continued organ support following NDD in Canada.

Mixed-methods design combining anonymous online survey with semi-structured interviews of Canadian critical care physicians (448 practitioners, adult and pediatric).

One hundred and six physicians responded to the survey and 12 participated in an interview. Fifty-two percent (55/106) of respondents had encountered a request for continued organ support after NDD within two years, 47% (26/55) of which involved threat of legal action. Requests for continued support following NDD ranged from appeals for time for family to gather before ventilator removal to disagreement withocial contexts surrounding these complex scenarios.

The kidney plays a central physiologic role as an oxygen sensor. Nevertheless, the direct mechanism by which this occurs is incompletely understood. We measured renal microvascular partial pressure of oxygen (P

O

) to determine the impact of clinically relevant conditions that acutely change P

O

including hyperoxia and hemodilution.

We utilized two-wavelength excitation (red and blue spectrum) of the intravascular phosphorescent oxygen sensitive probe Oxyphor PdG4 to measure renal tissue PO

in anesthetized rats (2% isoflurane, n = 6) under two conditions of altered arterial blood oxygen content (C

O

) 1) hyperoxia (fractional inspired oxygen 21%, 30%, and 50%) and 2) acute hemodilutional anemia (baseline, 25% and 50% acute hemodilution). The mean arterial blood pressure (MAP), rectal temperature, arterial blood gases (ABGs), and chemistry (radiometer) were measured under each condition. Blue and red light enabled measurement of P

O

in the superficial renal cortex and deeper cortical and medullal oxygen delivery and prevent acute kidney injury.Rhabdomyolysis has been reported in patients who abuse synthetic cannabinoids. However, no studies have yet assessed whether these cases reflect the direct cytotoxicity of synthetic cannabinoids on skeletal muscle, a possibility that the present study sought to address. Specifically, this study investigated the cytotoxicity of the synthetic cannabinoid CP-55,940, a compound that acts equally on both types of cannabinoid receptors (CB1 and CB2), in a human embryonic rhabdomyosarcoma (RD) cell line. Exposure of these cells to CP-55,940 resulted in concentration-dependent decreases in cell viability. URMC-099 cost These effects were attenuated by pre-incubation with AM251 (30 µM), a selective CB1 receptor antagonist, but not by pre-incubation with AM630 (30 µM), a selective CB2 receptor antagonist. Following treatment with CP-55,940, RD cells exhibited apoptosis, as indicated by the accumulation of annexin-V, activation of caspase-3, and a loss of the mitochondrial membrane potential. Additionally, CP-55,940 treatment of RD cells led to increases in intracellular Ca2+ levels. CP-55,940-induced cell death was significantly attenuated in the absence of extracellular Ca2+, and was partially decreased by pre-incubation with verapamil (5 µM) or diltiazem (5 µM), compounds that block the L-type Ca2+ channel. Our results indicate that the cytotoxicity of CP-55,940 towards RD cells (skeletal muscle cells) is mediated by the CB1 receptor, but not by the CB2 receptor. Our results further suggest that calcium influx through the L-type channel may play an important role in the apoptosis induced by these compounds.

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