Is low back pain a risk/prognostic factor for the development and/or progression of temporomandibular disorders? A systematic review with meta-analysis.

OBJECTIVES: To evaluate the association between low back pain (LBP) and painful temporomandibular disorders (TMDs). METHODS: Systematic review of observational studies. Searches were conducted using OVID MEDLINE, CINHAL, Web of Science and PUBMED databases up to 21 October 2022. Qualitative and quantitative analyses were performed. Risk of bias (RoB) was assessed using the Quality in Prognosis Studies tool (QUIPS). RESULTS: Eight studies were included in the present review with meta-analysis. The first onset of TMDs was more likely in patients with previous chronic LBP (hazard ratio (HR) 1.53 [95% confidence interval (CI): 1.28; 1.83, p < .00001]). In addition, patients with chronic LBP had 3.25 times the odds (OR) [95% CI: 1.94; 5.43, p < .00001] of having chronic TMDs than those who did not have chronic LBP. In addition, the higher the exposure to chronic LBP, the higher the risk of developing a first onset of TMDs. CONCLUSIONS: Chronic LBP can be considered a risk/contributing factor for painful TMDs. Although there is a high certainty in the evidence linking chronic LBP with the risk of a first onset of TMDs, there are insufficient studies to draw definitive conclusions. Furthermore, while an association between chronic LBP and chronic TMDs and a dose-effect was observed between these two conditions, a limited number of studies and evidence exist to support these findings. Future studies are needed to increase the body of evidence.

Effect of the timing of admission upon patient prognosis in the Intensive Care Unit: On-hours versus off-hours.

OBJECTIVE: To assess the repercussion of the timing of admission to the ICU upon patient prognosis. DESIGN: A prospective, observational, non-interventional cohort study was carried out. SCOPE: A second level hospital with 210 operational beds and a general ICU with 8 operational beds. PATIENTS OR PARTICIPANTS: The study comprised all patients admitted to the ICU during 3 years (January 2010 to December 2012), excluding those subjects admitted from the operating room after scheduled surgery. The patients were divided into 2 groups according to the timing of admission (on-hours or off-hours). INTERVENTIONS: Non-interventional study. VARIABLES OF INTEREST: An analysis was made of demographic variables (age, sex), origin (emergency room, hospital ward, operating room), comorbidities and SAPS 3 as severity score upon admission, length of stay in the ICU and hospital ward, and ICU and hospital mortality. RESULTS: A total of 504 patients were included in the on-hours group, versus 602 in the off-hours group. Multivariate analysis showed the factors independently associated to hospital mortality to be SAPS 3 (OR 1.10; 95% CI 1.08-1.12), and off-hours admission (OR 2.00; 95% CI 1.20-3.33). In a subgroup analysis of the off-hours group, the admission of patients on weekends or non-working days compared to daily night shifts was found to be independently associated to hospital mortality (OR 2.30; 95% CI 1.23-4.30). CONCLUSIONS: Admission to the ICU in off-hours is independently associated to patient mortality, which is also higher in patients admitted on weekends and non-working days compared to the daily night shifts.

Effect upon mortality of the extension to holidays and weekends of the "ICU without walls" project. A before-after study. / Efecto sobre la mortalidad de la ampliación a los festivos y fines de semana del proyecto «UCI sin paredes¼. Estudio before-after.

OBJECTIVE: To determine whether extension to holidays and weekends of the protocol for the early proactive detection of severity in hospital ("ICU without walls" project) results in decreased mortality among patients admitted to the ICU during those days. DESIGN: A quasi-experimental before-after study was carried out. SETTING: A level 2 hospital with 210 beds and a polyvalent ICU with 8 beds. PATIENTS OR PARTICIPANTS: The control group involved no "ICU without walls" activity on holidays or weekends and included those patients admitted to the ICU on those days between 1 January 2010 and 30 April 2013. The intervention group in turn extended the "ICU without walls" activity to holidays and weekends, and included those patients admitted on those days between 1 May 2013 and 31 October 2014. Patients arriving from the operating room after scheduled surgery were excluded. VARIABLES OF INTEREST: An analysis was made of the demographic variables (age, gender), origin (emergency room, hospital ward, operating room), type of patient (medical, surgical), reason for admission, comorbidities and SAPS 3 score as a measure of severity upon admission, stay in the ICU and in hospital, and mortality in the ICU and in hospital. RESULTS: A total of 389 and 161 patients were included in the control group and intervention group, respectively. There were no differences between the 2 groups except as regards cardiovascular comorbidity (49% in the control group versus 33% in the intervention group; P<.001), severity upon admission (median SAPS 3 score 52 [percentiles 25-75: 42-63) in the control group versus 48 [percentiles 25-75: 40-56] in the intervention group; P=.008) and mortality in the ICU (11% in the control group [95% CI 8-14] versus 3% [95% CI 1-7] in the intervention group; P=.003). In the multivariate analysis, the only 2 factors associated to mortality in the ICU were the SAPS 3 score (OR 1.08; 95% CI 1.06-1.11) and inclusion in the intervention group (OR 0.33; 95% CI 0.12-0.89). CONCLUSIONS: Extension of the "ICU without walls" activity to holidays and weekends results in a decrease in mortality in the ICU.

Mollaret's recurrent aseptic meningitis and cerebral epidermoid cyst.

A patient who initially presented with clinical and laboratory signs of bacterial meningitis developed four more similar episodes within a 6-month period. Immune system studies were unremarkable. A tentative diagnosis of Mollaret's meningitis was established after the third episode. Cranial computed tomography performed during the acute phase of the initial episode was normal, but, after the fourth scan, when the patient was asymptomatic, magnetic resonance imaging revealed a cyst in the anterior aspect of the medulla. Partial excision allowed for pathologic analysis, which established the diagnosis of epidermoid cyst. The differential diagnosis of recurrent aseptic meningitis should include Mollaret's meningitis and dermoid-epidermoid cysts. Neuroimaging studies, preferably magnetic resonance imaging, should be performed at a time when patients are asymptomatic.

[Preoperative lymphoscintigraphy to identify the sentinel lymph node in breast cancer]. / Linfogammagrafía prequirúrgica para la identificación del ganglio centinela en el cáncer de mama.

INTRODUCTION: The preoperative lymphoscintigraphy to the Sentinel Node Biopsy (SNB) can reproduce the lymphatic drainage of the tumour in breast cancer. OBJECTIVES: To establish the pattern of lymphatic drainage of the mammary tumors by means of isotopic lymphoscintigraphy and determine the factors that could influence the negativity of the scintigraphy. METHODS: 121 patients with breast cancer who were going to undergo mammary surgery were studied with SNB. One day before the operation, 37 MBq 99mTc-colloidal sulphide colloid in a volume of 2 ml was injected in peritumoral tissue. Mammary lymphoscintigraphies were performed at 30 minutes and 18 hours P.I., in ANT and OA projections of the corresponding chest. After, the clinical-biological parameters and their influence on the result of the lymphoscintigraphy were analyzed. RESULTS: The scintigraphy were positive in 85 % of the patients. The axillary chain was observed in 97 % and the internal mammary chain in 11 %. The factors associated to the absence of visualization of the sentinel node were: older than 50 years (94 %), menopause (89 %), tumoral size > or = 2 cm (67 %), axillary metastases (67 %), the overexpression of C-erbB-2 oncoprotein (44 %) and proliferative activity > 10 % (67 %). CONCLUSIONS: The peritumoral injection of the radiocolloid establishes the lymphatic drainage pattern in the patients with breast cancer. Its absence of visualization can be associated to circumstances like: age > or = 50 years, menopause, tumoral size > or = 2 cm, axillary metastases, tumoral overexpression of the C-erbB-2 oncoprotein and high proliferative activity of the mammary tumor.