Thirty-Day Readmission Rates After Takotsubo Syndrome With or Without Malignancy: A Nationwide Readmissions Database Analysis

Abstract Background: Association of malignancy with readmission after TTS hospitalization has not been fully described. We sought to examine the rates, cause and cost of 30-day readmissions and 30-day all-cause mortality of Takotsubo syndrome (TTS) patients with or without malignancy. Methods: The Nationwide Readmissions Databases from 2010 to 2014 were queried to identify and compare baseline characteristics and outcomes of patients hospitalized for TTS with and without malignancy. Results: We identified 61,588 index hospitalizations for TTS. TTS patients with malignancy were older (70.6 ± 0.2 vs. 66.1 ± 0.1, p < 0.001), and the overall burden of comorbidities was higher than in those without malignancy. TTS patients with malignancy had significantly higher 30-day readmission rates than those without malignancy (15.9% vs. 11.0%; odds ratio [OR], 1.35; 95% confidence interval [CI], 1.18 - 1.56). Majority (75.5%) of the etiologies for readmissions were non-cardiac, with infection being most common (20.1%). The 30-day readmission rate due to the recurrent TTS was similar in both groups (0.4% and 0.5%, respectively; p = 0.47). Importantly, 30-day all-cause mortality was higher in TTS with vs. without malignancy (4.8% vs 2.5%; OR, 1.62; 95% CI, 1.25 - 2.10). The total costs (index admission + readmission) were higher by 25% (p < 0.001) in TTS patients with malignancy vs. without malignancy. Conclusions: In patients hospitalized with TTS, the presence of malignancy was associated with increased risk of 30-day readmission, mostly attributable to non-cardiac etiologies. Importantly, the 30-day all-cause mortality and cost were also significantly higher. These findings highlight the importance of optimization of treatment and follow up in patients with malignancy after hospitalizations for TTS.

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Thirty-Day Readmission Rates after Takotsubo Syndrome with or without Malignancy: A Nationwide Readmissions Database Analysis

Journal of Clinical Medicine ◽

10.3390/jcm10163701 ◽

2021 ◽

Vol 10 (16) ◽

pp. 3701

Author(s):

Sun-Joo Jang ◽

Ilhwan Yeo ◽

Chanel Jonas ◽

Parag Goyal ◽

Jim W. Cheung ◽

...

Keyword(s):

Confidence Interval ◽

Odds Ratio ◽

Readmission Rate ◽

Takotsubo Syndrome ◽

Database Analysis ◽

Readmission Rates ◽

Increased Risk ◽

Common Causes

The association between malignancy and readmission after Takotsubo syndrome (TTS) hospitalization has not been fully described. We sought to examine the rates, cause, and cost of 30-day readmissions of TTS, with or without malignancy, by utilizing Nationwide Readmissions Databases from 2010 to 2014. We identified 61,588 index hospitalizations for TTS. TTS patients with malignancy tended to be older (70.6 ± 0.2 vs. 66.1 ± 0.1, p < 0.001), and the overall burden of comorbidities was higher than in those without malignancy. TTS patients with malignancy had significantly higher 30-day readmission rates than those without malignancy (15.9% vs. 11.0%; odds ratio (OR), 1.35; 95% confidence interval (CI), 1.18–1.56). Non-cardiac causes were the most common causes of readmission for TTS patients with malignancy versus without malignancy (75.5% vs. 68.1%, p < 0.001). The 30-day readmission rate due to recurrent TTS was very low in both groups (0.4% and 0.5%; p = 0.47). The total costs were higher by 25% (p < 0.001) in TTS patients with vs. without malignancy. In summary, among patients hospitalized with TTS, the presence of malignancy was associated with increased risk of 30-day readmission and increased costs. These findings highlight the importance of optimized management for TTS patients with malignancy.

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Abstract 509: Comparison of Drug Elluting Stent and Per Cutenaeous Transluminal Angioplasty in Patients With Infra-Popliteal Peripheral Arterial Disease

Arteriosclerosis Thrombosis and Vascular Biology ◽

10.1161/atvb.37.suppl_1.509 ◽

2017 ◽

Vol 37 (suppl_1) ◽

Author(s):

Rahul Vasudev ◽

MeetKumar Sheth ◽

Priyank Shah ◽

Upamanyu Rampal ◽

Hiten Patel ◽

...

Keyword(s):

Confidence Interval ◽

Odds Ratio ◽

Transluminal Angioplasty ◽

Limb Amputation ◽

Categorical Variables ◽

Target Vessel ◽

Target Vessel Revascularization ◽

All Cause Mortality ◽

Vessel Patency

Introduction: Drug-eluting Stent(DESs) have demonstrated improved patency and freedom from target lesion revascularization compared with Bare-Metal stents or Percutaneous Transluminal Angioplasty(PTA); however, the effect on clinical outcome parameters, such as limb salvage and wound healing, remains unidentified. We present a direct comparison of clinical outcomes in patients who underwent DES vs PTA. Methods: We collected data of patients who underwent infra-popliteal arterial interventions at our institution. Clinical end points analyzed were all cause mortality, target vessel revascularization, primary vessel patency, and target limb major and minor amputations. Differences between two groups were analyzed by chi square for categorical variables and t test for continuous variables. Statistical significance was considered for P values less than .05 in a 2-sided test. Results: Total of 83 cases, n=42 in DES group and n=41 in PTA group were analyzed. Mean age was 71.6 years (range 49-95). Out of the total 83 patients in the study 45 had a history of diabetes (54%) and 51 (61%) were current /past smokers. Average follow up period of 14 months for both the groups. Primary vessel patency was defined as absence of ≥50% restenosis on follow up. During the follow up period vessel patency in DES group [69% (n=29/42)] was significantly higher as compared to 36% (15/41) in PTA group (P=0.04, odds ratio 3.867, 95% Confidence interval: 1.5 - 9.6). Target vessel revascularization in DES group was 24% (10/42) as compared to 32% (13/28) in PTA group (P=0.47, odds ratio 0.67, 95% confidence interval: 0.26 - 1.77). Target limb amputation was 10% (4/42) in DES group as compared to 24% (10/41) in PTA group (P = 0.085), odds ratio 0.33, 95% confidence interval: 0.09 - 1.14). All cause mortality in both the groups were at 10%, 4/42 in DES group and 4/41 in PTA group (P=1, odds ratio 0.97, 95% confidence interval: 0.23 - 4.19). Conclusion: To conclude primary vessel patency was superior in DES group as compared to PTA group. Target limb amputation rates were higher in PTA group but not statistically significant. Target vessel revascularization and all cause mortality were similar in both the groups. Thus primary treatment with DES should be considered in patients with infra-popliteal PAD.

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Stent-Associated Flow Remodeling Causes Further Occlusion of Incompletely Coiled Aneurysms

Neurosurgery ◽

10.1227/neu.0b013e3182181c2b ◽

2011 ◽

Vol 69 (3) ◽

pp. 598-604 ◽

Cited By ~ 89

Author(s):

Matthew F. Lawson ◽

William C. Newman ◽

Yueh-Yun Chi ◽

J. D. Mocco ◽

Brian L. Hoh

Keyword(s):

Multivariate Analysis ◽

Confidence Interval ◽

Packing Density ◽

Odds Ratio ◽

Senior Author ◽

Neck Size ◽

Increased Risk ◽

Coil Occlusion ◽

Stented Group

Abstract BACKGROUND: Incomplete coil occlusion is associated with increased risk of aneurysm recurrence. We hypothesize that intracranial stents can cause flow remodeling, which promotes further occlusion of an incompletely coiled aneurysm. OBJECTIVE: To study our hypothesis by comparing the follow-up angiographic outcomes of stented and nonstented incompletely coiled aneurysms. METHODS: From January 2006 through December 2009, the senior author performed 324 initial coilings of previously untreated aneurysms, 145 of which were Raymond classification 2 and 3. Follow-up angiographic studies were available for 109 of these aneurysms (75%). Angiographic outcomes for stented vs nonstented incompletely coiled aneurysms were compared. A multivariate analysis was performed to identify factors related to the progression of occlusion at follow-up, with adjustment for aneurysm location, size, neck size, Hunt-Hess grade, stent use, initial Raymond score, packing density, age, sex, and medical comorbidities. RESULTS: Of the 109 aneurysms, 37 were stented and 72 were not stented. With a median follow-up time of 15.4 months, 33 stented aneurysms (89%) progressed to complete occlusion compared with 29 nonstented aneurysms (40%). Recanalization rates were lower in the stented group (8.1%) compared with the nonstented group (37.5%; P < .001). On multivariate analysis, stent use (odds ratio, 18.5; 95% confidence interval, 4.3-76.9) and packing density (odds ratio, 1.093; 95% confidence interval, 1.021-1.170) were significant predictors of the progression of occlusion. Aneurysm size was negatively correlated with the progression of occlusion (odds ratio, 0.844; 95% confidence interval, 0.724-0.983). CONCLUSION: Stent-assisted coiling causes progression of occlusion, possibly by a flow remodeling effect. The odds of progression of occlusion of stent-coiled aneurysms were 18.5 times that of nonstented aneurysms.

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Abstract P105: Women with Atrial Fibrillation have Increased Risk of Incident Stroke: Insights from a Propensity-Matched Study of the AFFIRM Trial

Circulation ◽

10.1161/circ.125.suppl_10.ap105 ◽

2012 ◽

Vol 125 (suppl_10) ◽

Author(s):

Brita Roy ◽

Ravi V Desai ◽

Mustafa I Ahmed ◽

Gregg C Fonarow ◽

Wilbert S Anorow ◽

...

Keyword(s):

Atrial Fibrillation ◽

Propensity Scores ◽

Cox Regression ◽

Men And Women ◽

Female Sex ◽

Increased Risk ◽

Comorbidity Burden ◽

All Cause Mortality ◽

Baseline Characteristics

Background: Women with atrial fibrillation (AF) have been reported to have poor outcomes. It remains unclear if this association is intrinsic or mediated by the higher comorbidity burden of female AF patients. Therefore, we examined the association between sex and outcomes in a balanced cohort of propensity-matched AF patients who participated in the Atrial Fibrillation Follow-up Investigation of Rhythm Management (AFFIRM) trial. Methods: Of the 4060 AFFIRM patients, 1594 (39%) were women. Propensity scores for female sex were calculated for each of the 4060 patients, and were used to assemble a cohort of 1097 pairs of men and women who were balanced on 51 baseline characteristics, including major cardiovascular (CV) risk factors and medication use, including warfarin. Matched Cox regression models were used to estimate the association between female sex and outcomes during 6 years of follow-up. Results: Patients (n=4060) had a mean (±SD) age of 70 (±8) years and 13% were African American. All-cause mortality occurred in 19% and 15% of matched men and women, respectively (matched HR when women were compared to men, 0.88; 95% CI, 0.69-1.11; p=0.279). All-cause hospitalization occurred in 61% of both men and women (matched HR for women, 1.06; 95% CI, 0.93-1.21; p=0.372). Sex was not associated with CV hospitalization (matched HR for women, 1.13; 95% CI, 0.97-1.32; p=0.111). Ischemic stroke occurred in 3% and 5% of matched men and women, respectively (OR when women were compared to men, 2.02; 95% CI, 1.28-3.18; p=0.002). There was no sex-related difference in major bleeding (7% each). Conclusion: In a cohort of AF patient in which men and women were well-balanced on 51 baseline characteristics including warfarin use, women had increased risk of stroke, but there was no sex-related variation in all-cause mortality or CV hospitalization.

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Predictors of venous stenosis or occlusion following first transvenous cardiac device implantation: Prospective observational study

The Journal of Vascular Access ◽

10.1177/1129729818815135 ◽

2018 ◽

Vol 20 (5) ◽

pp. 495-500

Author(s):

Andrzej Cacko ◽

Eliza Kozyra-Pydyś ◽

Monika Gawałko ◽

Grzegorz Opolski ◽

Marcin Grabowski

Keyword(s):

Confidence Interval ◽

Odds Ratio ◽

Perioperative Complications ◽

Lead Extraction ◽

Cardiac Device ◽

Cardioverter Defibrillator ◽

Device Implantation ◽

Venous Stenosis ◽

Increased Risk

Introduction: Venous stenosis or occlusion related to an intracardiac device is a well-known complication of that procedure. There are numerous studies tried to determine predictors of venous stenosis or occlusion; however, most of them investigate the venous system prior to device upgrade, generator replacement, or transvenous lead extraction. Therefore, we aimed to assess the prevalence and determine the predictors of venous stenosis or occlusion following first transevnous cardiac device implantation. Methods: Observational, prospective study included 71 consecutive patients admitted for first transvenous cardiac device implantation. All patients were followed up for 6 months after operation. Results: Implanted device systems comprised cardioverter defibrillator (n = 26), single-chamber or dual-chamber pacemakers (n = 34), and biventricular pacemakers (n = 11); 88.5% of implantable cardioverter defibrillator leads were single-coils and 11.5% were dual-coils. The incidence of venous stenosis or occlusion within 6-month follow-up was 21.1%. Multivariate logistic regression showed that only diabetes or prediabetes (p = 0.033, odds ratio: 0.17, 95% confidence interval: 0.04–0.87), prolonged procedure time (p = 0.046, odds ratio: 4.54, 95% confidence interval: 1.01–20.12), and perioperative complications (p = 0.021, odds ratio: 7.04, 95% confidence interval: 1.35–36.85) were predictors of venous stenosis or occlusion. Conclusion: Prolonged implantation time (>60 min) and perioperative complications are associated with an increased risk of venous stenosis or occlusion, whereas diabetes and prediabetes significantly reduce the risk of venous stenosis or occlusion.

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Natural course of mild cognitive impairment in Parkinson disease

Neurology ◽

10.1212/wnl.0000000000003634 ◽

2017 ◽

Vol 88 (8) ◽

pp. 767-774 ◽

Cited By ~ 71

Author(s):

Kenn Freddy Pedersen ◽

Jan Petter Larsen ◽

Ole-Bjørn Tysnes ◽

Guido Alves

Keyword(s):

Cognitive Impairment ◽

Mild Cognitive Impairment ◽

Confidence Interval ◽

Parkinson Disease ◽

Odds Ratio ◽

Adjusted Odds Ratio ◽

Neuropsychological Testing ◽

Increased Risk ◽

Normal Cognition

Objective:To examine the incidence, progression, and reversion of mild cognitive impairment in patients with Parkinson disease (PD-MCI) over 5 years.Methods:A population-based cohort of patients with incident PD underwent repeated neuropsychological testing of attention, executive function, memory, and visuospatial abilities at baseline (n = 178), 1 year (n = 175), 3 years (n = 163), and 5 years (n = 150). Patients were classified as PD-MCI and diagnosed with dementia according to published criteria.Results:Thirty-six patients (20.2%) fulfilled criteria for PD-MCI at baseline. Among those with normal cognition at baseline (n = 142), the cumulative incidence of PD-MCI was 9.9% after 1 year, 23.2% after 3 years, and 28.9% after 5 years of follow-up. Overall, 39.1% of patients with baseline or incident PD-MCI progressed to dementia during the 5-year study period. The conversion rate to dementia was 59.1% in patients with persistent PD-MCI at 1 year vs 7.2% in those with normal cognition during the first year (adjusted odds ratio 16.6, 95% confidence interval 5.1–54.7, p < 0.001). A total of 27.8% of patients with baseline PD-MCI and 24.2% of those with incident PD-MCI had reverted to normal cognition at study end, but the reversion rate decreased to 9.4% in those with persistent PD-MCI at 2 consecutive visits. Compared with cognitively normal patients, PD-MCI reverters within the first 3 years of follow-up were at increased risk of subsequently developing dementia (adjusted odds ratio 10.7, 95% confidence interval 1.5–78.5, p = 0.019).Conclusions:Early PD-MCI, regardless of persistence or reversion to normal cognition, has prognostic value for predicting dementia in patients with PD.

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Sex modulates the association of radial artery augmentation index with renal function decline in individuals without chronic kidney disease

International Urology and Nephrology ◽

10.1007/s11255-020-02776-5 ◽

2021 ◽

Author(s):

Qiao Qin ◽

Fangfang Fan ◽

Jia Jia ◽

Yan Zhang ◽

Bo Zheng

Keyword(s):

Chronic Kidney Disease ◽

Renal Function ◽

Kidney Disease ◽

Arterial Stiffness ◽

Confidence Interval ◽

Odds Ratio ◽

Adjusted Odds Ratio ◽

Augmentation Index ◽

Renal Function Decline

Abstract Purpose An increase in arterial stiffness is associated with rapid renal function decline (RFD) in patients with chronic kidney disease (CKD). The aim of this study was to investigate whether the radial augmentation index (rAI), a surrogate marker of arterial stiffness, affects RFD in individuals without CKD. Methods A total of 3165 Chinese participants from an atherosclerosis cohort with estimated glomerular filtration rates (eGFR) of ≥ 60 mL/min/1.73 m2 were included in this study. The baseline rAI normalized to a heart rate of 75 beats/min (rAIp75) was obtained using an arterial applanation tonometry probe. The eGFRs at both baseline and follow-up were calculated using the equation derived from the Chronic Kidney Disease Epidemiology Collaboration. The association of the rAIp75 with RFD (defined as a drop in the eGFR category accompanied by a ≥ 25% drop in eGFR from baseline or a sustained decline in eGFR of > 5 mL/min/1.73 m2/year) was evaluated using the multivariate regression model. Results During the 2.35-year follow-up, the incidence of RFD was 7.30%. The rAIp75 had no statistically independent association with RFD after adjustment for possible confounders (adjusted odds ratio = 1.12, 95% confidence interval: 0.99–1.27, p = 0.074). When stratified according to sex, the rAIp75 was significantly associated with RFD in women, but not in men (adjusted odds ratio and 95% confidence interval: 1.23[1.06–1.43], p = 0.007 for women, 0.94[0.76–1.16], p = 0.542 for men; p for interaction = 0.038). Conclusion The rAI might help screen for those at high risk of early rapid RFD in women without CKD.

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Efficacy of two-week therapy with doxycycline-based quadruple regimen versus levofloxacin concomitant regimen for helicobacter pylori infection: a prospective single-center randomized controlled trial

BMC Infectious Diseases ◽

10.1186/s12879-021-06356-5 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Marouf Alhalabi ◽

Mohammed Waleed Alassi ◽

Kamal Alaa Eddin ◽

Khaled Cheha

Keyword(s):

Clinical Trial ◽

Helicobacter Pylori ◽

Confidence Interval ◽

Odds Ratio ◽

Controlled Trial ◽

Helicobacter Pylori Infection ◽

First Line ◽

Link Type ◽

Syrian Population

Abstract Background Antibiotic-resistance reduces the efficacy of conventional triple therapy for Helicobacter Pylori infections worldwide, which necessitates using various treatment protocols. We used two protocols, doxycycline-based quadruple regimen and concomitant levofloxacin regimen. The aim was to assess the effectiveness of doxycycline-based quadruple regimen for treating Helicobacter Pylori infections compared with levofloxacin concomitant regimen as empirical first-line therapy based on intention-to-treat (ITT) and per-protocol analyses (PPA) in Syrian population. Settings and design An open-label, randomised, parallel, superiority clinical trial. Methods We randomly assigned 78 naïve patients who tested positive for Helicobacter Pylori gastric infection, with a 1:1 ratio to (D-group) which received (bismuth subsalicylate 524 mg four times daily, doxycycline 100 mg, tinidazole 500 mg, and esomeprazole 20 mg, each twice per day for 2 weeks), or (L-group) which received (levofloxacin 500 mg daily, tinidazole 500 mg, amoxicillin 1000 mg, and esomeprazole 20 mg each twice per day for two weeks). We confirmed Helicobacter Pylori eradication by stool antigen test 8 weeks after completing the treatment. Results Thirty-nine patients were allocated in each group. In the D-group, 38 patients completed the follow-up, 30 patients were cured. While in the L-group, 39 completed the follow-up, 32patients were cured. According to ITT, the eradication rates were 76.92%, and 82.05%, for the D-group and L-group respectively. Odds ratio with 95% confidence interval was 1.371 [0.454–4.146]. According to PPA, the eradication rates were 78.9%, and 82.05% for the D-group and L-group respectively. The odds ratio with 95% confidence interval was 1.219 [0.394–3.774]. We didn’t report serious adverse effects. Conclusions Levofloxacin concomitant therapy wasn’t superior to doxycycline based quadruple therapy. Further researches are required to identify the optimal first-line treatment for Helicobacter-Pylori Infection in the Syrian population. Trial registration We registered this study as a standard randomized clinical trial (Clinicaltrial.gov, identifier-NCT04348786, date:29-January-2020).

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THE RELATIONSHIP BETWEEN INFLAMMATORY DIETARY PATTERN AND INCIDENCE OF PERIODONTITIS

British Journal Of Nutrition ◽

10.1017/s0007114520005231 ◽

2021 ◽

pp. 1-36

Author(s):

Ahmed A. Alhassani ◽

Frank B. Hu ◽

Bernard A. Rosner ◽

Fred K. Tabung ◽

Walter C. Willett ◽

...

Keyword(s):

Confidence Interval ◽

Periodontal Disease ◽

Secondary Analysis ◽

Hazard Ratio ◽

Reduced Rank Regression ◽

Rank Regression ◽

Increased Risk ◽

Cox Proportional Hazard Models ◽

Study Population

ABSTRACT The long-term inflammatory impact of diet could potentially elevate the risk of periodontal disease through modification of systemic inflammation. The aim of the present study was to prospectively investigate the associations between a food based, reduced rank regression (RRR) derived, empirical dietary inflammatory pattern (EDIP) and incidence of periodontitis. The study population was composed of 34,940 men from the Health Professionals Follow-Up Study, who were free of periodontal disease and major illnesses at baseline (1986). Participants provided medical and dental history through mailed questionnaires every 2 years, and dietary data through validated semi-quantitative food frequency questionnaires every 4 years. We used Cox proportional hazard models to examine the associations between EDIP scores and validated self-reported incidence of periodontal disease over a 24-year follow-up period. No overall association between EDIP and the risk of periodontitis was observed; the hazard ratio comparing the highest EDIP quintile (most proinflammatory diet) to the lowest quintile was 0.99 (95% confidence interval: 0.89 -1.10, p-value for trend = 0.97). A secondary analysis showed that among obese non-smokers (i.e. never and former smokers at baseline), the hazard ratio for periodontitis comparing the highest EDIP quintile to the lowest was 1.39 (95% confidence interval: 0.98 -1.96, p-value for trend = 0.03). In conclusion, no overall association was detected between EDIP and incidence of self-reported periodontitis in the study population. From the subgroups evaluated EDIP was significantly associated with increased risk of periodontitis only among nonsmokers who were obese. Hence, this association must be interpreted with caution.

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Do Children Who Experience Laryngospasm Have an Increased Risk of Upper Respiratory Tract Infection?

Anesthesiology ◽

10.1097/00000542-199609000-00005 ◽

1996 ◽

Vol 85 (3) ◽

pp. 475-480. ◽

Cited By ~ 107

Author(s):

Mark S. Schreiner ◽

Irene O'Hara ◽

Dorothea A. Markakis ◽

George D. Politis

Keyword(s):

Confidence Interval ◽

Respiratory Infection ◽

Odds Ratio ◽

Signs And Symptoms ◽

Control Group ◽

Upper Respiratory Tract ◽

Upper Respiratory Infection ◽

Airway Surgery ◽

Increased Risk ◽

Upper Respiratory

Background Laryngospasm is the most frequently reported respiratory complication associated with upper respiratory infection and general anesthesia in retrospective studies, but prospective studies have failed to demonstrate any increase in risk. Methods A case-control study was performed to examine whether children with laryngospasm were more likely to have an upper respiratory infection on the day of surgery. The parents of all patients (N = 15,183) who were admitted through the day surgery unit were asked if their child had an active or recent (within 2 weeks of surgery) upper respiratory infection and were questioned about specific signs and symptoms to determine if the child met Tait and Knight's definition of an upper respiratory infection. Control subjects were randomly selected from patients whose surgery had occurred within 1 day of the laryngospasm event. Results Patients who developed laryngospasm (N = 123) were 2.05 times (95% confidence interval 1.21-3.45) more likely to have an active upper respiratory infection as defined by their parents than the 492 patients in the control group (P < or = 0.01). The development of laryngospasm was not related to Tait and Knight's definition for an upper respiratory infection or to recent upper respiratory infection. Children with laryngospasm were more likely to be younger (odds ratio = 0.92, 95% confidence interval 0.87-0.99), to be scheduled for airway surgery (odds ratio = 2.08, 95% confidence interval 1.21-3.59), and to have their anesthesia supervised by a less experienced anesthesiologist (odds ratio = 1.69, 95% confidence interval 1.04-2.7) than children in the control group. Conclusion Laryngospasm was more likely to occur in children with an active upper respiratory infection, children who were younger, children who were undergoing airway surgery, and children whose anesthesia were supervised by less experienced anesthesiologists. Understanding the risk factors and the magnitude of the likely risk should help clinicians make the decision as to whether to anesthetize children with upper respiratory infection.

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