The Role of Flumazenil in the Management of Patients With Acute Alteration of Mental Status in the Emergency Department

1994 ◽  
Vol 13 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Tzyh-Lih Chern ◽  
Sheng-Chuan Hu ◽  
Chen-Hsen Lee ◽  
Jou-Fang Deng

1 There are a few case reports which suggest that flumazenil can be used as a diagnostic tool in coma of unknown aetiology but no large scale studies have proved its efficacy and cost-effectiveness. 2 Fifty five patients with acute alteration of mental status of unknown aetiology were enrolled prospectively during a time period of one year. Flumazenil was injected intravenously in a regimen of 0.3 mg in the first minute followed by alternate 0.2 mg, 0.3 mg doses every minute until a total dose of 1 mg was given or until the patients responded. 3 Patients were divided into two groups based on their response to flumazenil: Group 1, responders and Group 2, non-responders. The hospital stay was shortened significantly and interventional procedures, such as CT of brain and endotracheal intubation, were rendered unnecessary in several patients in Group 1. The Group 1 patients had a more favourable outcome than that of Group 2. 4 We concluded that flumazenil may serve as a useful tool in diagnosis and management of carefully selected patients with acute alteration of mental status.

2002 ◽  
Vol 22 (6) ◽  
pp. 693-697 ◽  
Author(s):  
Peter H. Juergensen ◽  
A. Lola Murphy ◽  
Alan S. Kliger ◽  
Fredric O. Finkelstein

Background The National Kidney Foundation Kidney Disease Outcomes Quality Initiative (K/DOQI) has evidence- and opinion-based recommendations for weekly Kt/Vurea and weekly total creatinine clearance (CC) in chronic peritoneal dialysis (CPD) patients. Using standard continuous ambulatory peritoneal dialysis technique, it is often difficult to achieve the suggested targets in anuric patients with large body mass. Thus, the use of automated peritoneal dialysis (APD) has been increasingly utilized to achieve adequate clearances. Automated dialysis is usually performed at night over an 8- to 10-hour period. The role of increases in dialysate volume and frequency of exchanges during this time period to achieve these target K/DOQI recommendations remains uncertain. We decided to study the effects of increasing the volume and number of exchanges in a fixed period of time in CPD patients. Methods In the New Haven CAPD unit, 29 patients maintained on APD were considered eligible for the study and 11 agreed to participate. The patients were characterized according to standard peritoneal equilibration test criteria. The patients were placed into two groups: group 1 included high (H) and high-average (HA), and group 2 low-average (LA) transporters. The patients were dialyzed at night for 9 hours with standard cycling technique, using 2.5% Dianeal (Baxter Healthcare, Deerfield, Illinois, USA) solution, with a cycle volume of 2500 mL, and a 2000-mL daytime dwell. Three studies were done on each patient using a total dialysis volume of 9.5 L (3 cycles), 14.5 L (5 cycles), and 19.5 L (7 cycles). Daily Kpt/Vurea and daily CCp (peritoneal) (L/day/1.73 m2) were obtained. Results Six patients were H or HA (group 1) and 5 were LA transporters (group 2). For the group 1 patients, mean weight was 86.6 ± 13.5 kg; Kpt/Vurea was 1.68 ± 0.21 using 9.5 L, 2.03 ± 0.28 for 14.5 L ( p < 0.05 compared to 10 L), and 2.28 ± 0.28 with 19.5 L ( p < 0.05 compared to 10 L and 15 L); mean weekly CCp was 45.43 ± 7.63 L/1.73 m2 for 9.5 L ( p < 0.05 compared to 14.5 L and 19.5 L), 51.17 ± 7.07 with 14.5 L, and 54.67 ± 10.08 for 19.5 L; ultrafiltration rates were not different in the three studies. For the group 2 patients, mean weight was 74.3 ± 17.7 kg; mean weekly Kpt/Vurea was 1.68 ± 0.35 using 9.5 L, 2.10 ± 0.42 for 14.5 L ( p < 0.05 compared to 9.5 L), and 2.31 ± 0.56 for 19.5 L ( p < 0.05 compared to 9.5 L and 14.5 L); mean weekly CCp was 42.56 ± 10.64 L/1.73 m2 for 9.5 L ( p < 0.05 compared to 14.5 L and 19.5 L), 50.89 ± 12.66 for 14.5 L, and 51.94 ± 11.20 for 19.5 L; ultrafiltration was lower in the 9.5-L study than in the 14.5-L and 19.5-L studies, but was not different in the 14.5-L and 19.5-L studies. Conclusions In both H/HA and LA transporters, Kpt/Vurea and CCp rise significantly when the frequency of exchanges and total volume of dialysate are increased. Thus, the use of larger volumes of dialysate with cycling peritoneal dialysis may result in increased clearances of urea and creatinine.


Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Zhibing Lu ◽  
Benjamin J Scherlag ◽  
Guo-Dong Niu ◽  
Jiaxiong Lin ◽  
Muhammad Ghias ◽  
...  

Introduction: There have been many forms of remodeling reported to play a role in the concept of “atrial fibrillation (AF) begets atrial fibrillation.” The role of intrinsic cardiac nervous system (ICNS) in this remodeling process was evaluated in this study. Methods: Continuous rapid pacing (1200 bpm, 2× threshold, TH) was performed at the left atrial appendage to maintain AF. Group 1 (N=7): 6-hours of pacing followed by ganglionated plexi (GP) ablation, both left and right side; Group 2 (N=7): GP ablation followed by 6-hours of pacing. At 2x and 10x TH, the effective refractory period (ERP) and window of vulnerability (WOV), i.e., longest-shortest coupling of premature stimulus which induced AF in milliseconds (ms), were measured at the left atrium, right atrium and pulmonary veins (PVs) every hour during the 6-hours of pacing before and after GP ablation. Results: In group 1 (rapid pacing with GP intact) ERP progressively shortened in the first two hours and then stabilized both at 2×TH and 10×TH (Figure 1A ), however, WOV progressively widened throughout the time period (Figure 1B ). After GP ablation, ERP was significantly longer than prior to ablation and AF could not be induced (WOV=0, p<0.01) at any pacing site at either 2×TH or 10×TH (Figure 1B ). In group 2 (initial GP ablation), ERP exhibited a slightly increasing trend as the pacing time increased. AF could not be induced in 6/7 dogs during the 6-hour pacing, and was inducible in 1/7 with a cumulative WOV of only 10 ms. Conclusion: The ICNS is crucial for the process of “AF begets AF” in the acute stages of remodeling by rapid atrial pacing.


2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Michele Kaplan ◽  
Zana Kalajzic ◽  
Thomas Choi ◽  
Imad Maleeh ◽  
Christopher L. Ricupero ◽  
...  

Abstract Background Orthodontic tooth movement (OTM) has been shown to induce osteocyte apoptosis in alveolar bone shortly after force application. However, how osteocyte apoptosis affects orthodontic tooth movement is unknown. The goal of this study was to assess the effect of inhibition of osteocyte apoptosis on osteoclastogenesis, changes in the alveolar bone density, and the magnitude of OTM using a bisphosphonate analog (IG9402), a drug that affects osteocyte and osteoblast apoptosis but does not affect osteoclasts. Material and methods Two sets of experiments were performed. Experiment 1 was used to specifically evaluate the effect of IG9402 on osteocyte apoptosis in the alveolar bone during 24 h of OTM. For this experiment, twelve mice were divided into two groups: group 1, saline administration + OTM24-h (n=6), and group 2, IG9402 administration + OTM24-h (n=6). The contralateral unloaded sides served as the control. The goal of experiment 2 was to evaluate the role of osteocyte apoptosis on OTM magnitude and osteoclastogenesis 10 days after OTM. Twenty mice were divided into 4 groups: group 1, saline administration without OTM (n=5); group 2, IG9402 administration without OTM (n=5); group 3, saline + OTM10-day (n=6); and group 4, IG9402 + OTM10-day (n=4). For both experiments, tooth movement was achieved using Ultra Light (25g) Sentalloy Closed Coil Springs attached between the first maxillary molar and the central incisor. Linear measurements of tooth movement and alveolar bone density (BVF) were assessed by MicroCT analysis. Cell death (or apoptosis) was assessed by terminal dUTP nick-end labeling (TUNEL) assay, while osteoclast and macrophage formation were assessed by tartrate-resistant acid phosphatase (TRAP) staining and F4/80+ immunostaining. Results We found that IG9402 significantly blocked osteocyte apoptosis in alveolar bone (AB) at 24 h of OTM. At 10 days, IG9402 prevented OTM-induced loss of alveolar bone density and changed the morphology and quality of osteoclasts and macrophages, but did not significantly affect the amount of tooth movement. Conclusion Our study demonstrates that osteocyte apoptosis may play a significant role in osteoclast and macrophage formation during OTM, but does not seem to play a role in the magnitude of orthodontic tooth movement.


2020 ◽  
Vol 9 (4) ◽  
pp. 1043 ◽  
Author(s):  
Pei-Hsun Sung ◽  
Yi-Chen Li ◽  
Mel S. Lee ◽  
Hao-Yi Hsiao ◽  
Ming-Chun Ma ◽  
...  

This phase II randomized controlled trial tested whether intracoronary autologous CD34+ cell therapy could further improve left ventricular (LV) systolic function in patients with diffuse coronary artery disease (CAD) with relatively preserved LV ejection fraction (defined as LVEF >40%) unsuitable for coronary intervention. Between December 2013 and November 2017, 60 consecutive patients were randomly allocated into group 1 (CD34+ cells, 3.0 × 107/vessel/n = 30) and group 2 (optimal medical therapy; n = 30). All patients were followed for one year, and preclinical and clinical parameters were compared between two groups. Three-dimensional echocardiography demonstrated no significant difference in LVEF between groups 1 and 2 (54.9% vs. 51.0%, respectively, p = 0.295) at 12 months. However, compared with baseline, 12-month LVEF was significantly increased in group 1 (p < 0.001) but not in group 2 (p = 0.297). From baseline, there were gradual increases in LVEF in group 1 compared to those in group 2 at 1-month, 3-months, 6-months and 12 months (+1.6%, +2.2%, +2.9% and +4.6% in the group 1 vs. −1.6%, −1.5%, −1.4% and −0.9% in the group 2; all p < 0.05). Additionally, one-year angiogenesis (2.8 ± 0.9 vs. 1.3 ± 1.1), angina (0.4 ± 0.8 vs. 1.8 ± 0.9) and HF (0.7 ± 0.8 vs. 1.8 ± 0.6) scores were significantly improved in group 1 compared to those in group 2 (all p < 0.001). In conclusion, autologous CD34+ cell therapy gradually and effectively improved LV systolic function in patients with diffuse CAD and preserved LVEF who were non-candidates for coronary intervention (Trial registration: ISRCTN26002902 on the website of ISRCTN registry).


2021 ◽  
pp. 1-8

OBJECTIVE There is no consensus regarding the best surgical strategy at the lumbosacral junction (LSJ) in long constructs for adult spinal deformity (ASD). The use of interbody fusion (IF) has been advocated to increase fusion rates, with additional pelvic fixation (PF) typically recommended. The actual benefit of IF even when extending to the pelvis, however, has not been vigorously analyzed. The goal of this work was to better understand the role of IF, specifically with respect to arthrodesis, when extending long constructs to the ilium. METHODS A systematic review of the PubMed and Cochrane databases was performed to identify the relevant studies in English, addressing the management of LSJ in long constructs (defined as ≥ 5 levels) in ASD. The search terms used were as follows: “Lumbosacral Junction,” “Long Constructs,” “Long Fusion to the Sacrum,” “Sacropelvic Fixation,” “Interbody Fusion,” and “Iliac Screw.” The authors excluded technical notes, case reports, literature reviews, and cadaveric studies; pediatric populations; pathologies different from ASD; studies not using conventional techniques; and studies focused only on alignment of different levels. RESULTS The PRISMA protocol was used. The authors found 12 retrospective clinical studies with a total of 1216 patients who were sorted into 3 different categories: group 1, using PF or not (n = 6); group 2, using PF with or without IF (n = 5); and group 3, from 1 study comparing anterior lumbar interbody fusion versus transforaminal lumbar interbody fusion. Five studies in group 1 and 4 in group 2 had pseudarthrosis rate as primary outcome and were selected for a quantitative analysis. Forest plots were used to display the risk ratio, and funnel plots were used to look at the risk of publication bias. The summary risk ratios were 0.36 (0.23–0.57, p < 0.001) and 1.03 (0.54–1.96, p = 0.94) for the PF and IF, respectively; there is a protective effect of overall pseudarthrosis for using PF in long constructs for ASD surgeries, but not for using IF. CONCLUSIONS The long-held contention that L5/S1 IF is always advantageous in long-construct deformity surgery is not supported by the current literature. Based on the findings from this systematic review and meta-analysis, PF with or without additional L5/S1 interbody grafting demonstrates similar overall construct pseudarthrosis rates. The added risk and costs associated with IF, therefore, should be more closely considered on a case-by-case basis.


2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
K Banerjee ◽  
B Singla

Abstract Study question To assess the role of subcutaneous granulocyte colony-stimulating factor (G-CSF) in thin endometrium cases. Summary answer G CSF has beneficial role to improve the endometrium thickness in thin endometrium. What is known already Endometrium is very important for embryo implantation and the endometrial thickness is the marker of receptivity of the endometrium. Study design, size, duration Study design - Retrospective analysis Size - 88 infertile females with thin endometrium (&lt; 7 mm) in the age group of 23 to 40 years Duration - one year. Participants/materials, setting, methods In the group 1 of 44 females, subcutaneous infusion of G CSF (300 mcg/ml) was added along with other supplements and if lining was not more than 7 mm in 72 hours, then second infusion was given. In the group 2 of 44 females, only estradiol valerate and sildenafil were given.The efficacy of G CSF was evaluated by assessing the endometrium thickness before embryo transfer, pregnancy rates and clinical pregnancy rates. Main results and the role of chance There was no difference between the two groups regarding demographic variables, egg reserve, sperm parameters, number of embryos transferred and embryo quality. . The pregnancy rate was 60% (24 out of 40 cases) in the group 1 that was significantly higher than in-group 2 that was 31% (9 out of 29 cases) with p value &lt; 0.0001. The clinical pregnancy rate was also significantly higher in-group 1 (55%) as compared to group 2 (24%) with p value &lt; 0.0001. Limitations, reasons for caution Further larger cohort studies are required to explore the subcutaneous role of G CSF in thin endometrium. Wider implications of the findings: Granulocyte colony-stimulating factor has beneficial role to improve the endometrium thickness in thin endometrium. In most of previous studies, the intrauterine infusion of G CSF was given to improve the uterine lining. This is one of the few studies done that showed subcutaneous role of G CSF in thin endometrium. Trial registration number Not applicable


2016 ◽  
Vol 11 (3) ◽  
Author(s):  
Muhammad A Ahad ◽  
Mohammad Rashad Qamar ◽  
Sameh K Hindi ◽  
Martin N Kid

Purpose: To study the effect of anterior capsule polishing during phacoemulsification on the incidence of post operative YAG laser capsulotomy. Method: A retrospective controlled study of 159 patients who underwent uncomplicated phacoemulsification with anterior capsular polishing between October 1998 and March 2000. 169 age matched patients who underwent phacoemulsification but without anterior capsule polishing served as controls. Main outcome measure: Incidence of visually significant YAG capsulotomy, which improved the Snellen acuity for more than 1 line or at least 1 line with subjective improvements in symptoms. Results: 2.51 % of patients with anterior capsular polishing (Group 1) had YAG capsulotomy compared to 7.1% of patients in control group at one year. However, after two years, 11.3% of patients in Group I had YAG capsulotomy compared to 12.4% in Group 2. Conclusion: Anterior capsular polishing during cataract surgery may delay the opacification of posterior capsule during the early postoperative period. But does not decrease the incidence of YAG capsulotomy after two years.


2015 ◽  
Vol 2;18 (2;3) ◽  
pp. E147-E155
Author(s):  
Yasser M. Amr

Background: Chronic inguinal neuralgia has been reported after inguinal herniorrhaphy, caesarean section, appendectomy, and trauma to the lower quadrant of the abdomen or inguinal region. Objectives: This study was designed to evaluate the efficacy of pulsed radiofrequency in management of chronic inguinal neuralgia. Study Design: Randomized, double-blind controlled trial. Setting: Hospital outpatient setting. Methods: Twenty-one patients were allocated into 2 groups. Group 1 received 2 cycles of pulsed radiofrequency (PRF) for each nerve root. In Group 2, after stimulation, we spent the same time to mimic PRF. Both groups received bupivacaine 0.25% + 4 mg dexamethasone in 2 mL for each nerve root. Visual Analogue Scale (VAS) was assessed. Duration of the first block effective pain relief was reported. Repeated PRF blockade was allowed for any patient who reported a VAS > 30 mm in both groups during the one year follow-up period. The number and duration of blocks were reported and adverse effects were also reported. Results: Significantly longer duration of pain relief was noticed in Group 1 (P = 0.005) after the first block, while the durations of pain relief of the second block were comparable (P = 0.59). In Group 1 the second PRF produced pain relief from the twenty-fourth week until the tenth month while in Group 2, pain relief was reported from the sixteenth week until the eighth month after the use of PRF. All patients in Group 2 received 3 blocks (the first was a sham PRF) during the one year follow-up period. Meanwhile, 2 PRF blocks were sufficient to achieve pain relief for patients in Group 1 except 4 patients who needed a third PRF block. No adverse events were reported. Limitations: Small sample size. Conclusion: For intractable chronic inguinal pain, PRF for the dorsal root ganglion represents a promising treatment modality. Key words: Radiofrequency, chronic, inguinal neuralgia


2017 ◽  
Vol 98 (1) ◽  
pp. 5-9
Author(s):  
T L Nastausheva ◽  
O A Zhdanova ◽  
N S Nastausheva ◽  
L I Stahurlova ◽  
I V Grebennikova

Aim. To conduct comparative analysis of height, weight and body mass index in children with stages 1 to 3 of chronic kidney disease (CKD) caused by recurrent urinary tract infection due to congenital anomalies of kidney and urinary tract.Methods. The study was performed on 210 children: 110 patients examined in 2001-2002 (group 1) and 100 children examined in 2011-2012 (group 2). Stage 1 of CKD was observed in 94 (85.4%) children in group 1 and in 93 (93%) in group 2, stage 2 - in 16 (14.6%) and 7 (7%) patients, respectively. From both groups patients matched by sex, age, diagnosis and social status were selected: 20 patients with stage 1, 19 children with stage 2; in addition, 6 children with stage 3 were examined.Results. Nowadays children with CKD stage 1 are taller compared to patients of the beginning of the XXI century (Z-score: -0.14±1.43 and 0.20±0.98 respectively, p=0.01). Significant differences in weight were found in children with stage 1 in 2011-2012 compared to the patients in 2001-2002 (0.18±0.46 and 0.78±1.19 for groups 1 and 2, respectively, р=0.026). A tendency towards decrease of average height in children with stage 3 is observed compared to patients with stage 1, i.e. due to the progression of the disease.Conclusion. The data obtained reflect modern tendencies towards increase of children height and weight. No significant differences were found in physical development parameters of children with stages of chronic kidney disease 1 and 2 examined at the same time period but a tendency towards children’s height decrease from stages 1 to 3 of CKD of non-glomerular etiology was revealed.


2020 ◽  
Vol 8 (1) ◽  
pp. 24
Author(s):  
Ali G. Mohammed Redha ◽  
Adil A. Jaber ◽  
Aqeel M. Nasser

Background: Different methods are found for mesh fixation in inguinal hernioplasty both open and laparoscopic. In open technique, sutures have been the method of choice for their reduced costs and surgeons’ habits. Whether absorbable instead of non-absorbable sutures can be used still a matter of debate in view of hernia recurrence and post-operative complications.Methods: This is a prospective done on 158 male patients with uncomplicated unilateral inguinal hernias. Two groups of 69 patients were evaluated after periods up to 1 year after open hernioplasty by using delayed absorbable sutures in one group (group 1) and non-absorbable sutures in the other group (group 2) for fixation of mesh.Results: In spite of a noticeable reduction in complication in the group 1 in term of number and percentage when compared with group 2 mainly chronic pain, there is no significant difference (p value>0.05). However, these results are associated with zero recurrence in both groups during a period of one year follow up.Conclusions: Delayed absorbable sutures are good alternative of non-absorbable sutures in open mesh hernia repair associated with less complications and almost no increase in chance of recurrence.  


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