Functional magnetic stimulation can improve the urination of persons with urine retention after a spinal cord injury / 中华物理医学与康复杂志

Objective:To observe any effect of functional magnetic stimulation (FMS) of the sacral 3 nerve root on relieving urine retention after a spinal cord injury.Methods:Forty-four patients with neurogenic bladder disorders after a spinal cord injury were divided at random into a 5Hz group ( n=14), a 20Hz group ( n=15), and a sham stimulation group ( n=15). In addition to conventional bladder control training, the 5Hz and 20Hz groups were given 20 minutes of FMS of the sacral 3 nerve root at the appropriate frequency five days a week for 4 weeks. The sham stimulation group was not given any stimulation. A detailed urination diary was kept during the treatment, and before and after the 4 weeks, everyone′s bladder pressure volume was assessed and an electromyogram was recorded. Results:After the treatment those in the 5Hz and 20Hz groups had improved significantly in terms of average bladder capacity, bladder pressure, residual urine volume, daily number of urethral catheterizations, daily micturition frequency, single urine output, H-reflex latency, and the amplitude and incubation period of the F wave. Those in the sham stimulation group showed no consistent improvement in any of these indicators. Moreover, the average residual urine volume, daily urination frequency and H-reflex latency and amplitude of the 20Hz group were significantly better than those of the 5Hz group.Conclusions:Magnetic stimulation of the S3 nerve roots can effectively improve the urination of persons with neurogenic bladder disorders after a spinal cord injury. The preferred frequency is 20Hz.

Effect of Acupuncture on Motor Function of Extrahepatic Biliary System of Guinea Pig / 世界科学技术-中医药现代化

This study was aimed to compare the effects of acupuncture stimulation on different acupoints, which included LR14-Qimen, ST25-Tianshu, GB34-Yanglingquanand CO11-pancreas and gallbladder (auricular vagus nerve intensively distributed areas) on gallbladder pressure and Oddi sphincter function of guinea pig, in order to discuss acupuncture effect on different acupoints in the regulation of motor function of extrahepatic biliary system. A total of 20 adult guinea pigs of both sexes were randomly divided into two groups, with 10 in each group. The detection was made on changes of Oddi sphincter electromyography and gallbladder pressure before and after acupuncture. A double-hook electrode was implanted into the Oddi sphincter for the detection of Oddi sphincter electromyography. And one small artificial balloon was put into the gallbladder to measure the intrabiliary pressure. After the guinea pig was anesthetized, changes of gallbladder pressure as well as the electromyography frequency and amplitude index of Oddi sphincter of the normal guinea pig were recorded. When the guinea pig was stabilized, acupuncture was given on LR14, ST25, GB34 and CO11 for 1 min. Observations were made on acupuncture effects of gallbladder pressure and Oddi sphincter function of guinea pig. The results showed that after acupuncture on LR14 and ST25, the electromyography frequency of Oddi sphincter was obviously increased compared with before acupuncture (frequency:P < 0.01, amplitude:P < 0.05); the gallbladder pressure was obviously decreased (P < 0.05). After acupuncture on CO11 and GB34, the electromyography frequency and amplitude index of Oddi sphincter were obviously decreased compared with before acupuncture (P < 0.05); the gallbladder pressure was obviously increased (P < 0.01). It was concluded that acupuncture on LR14 and ST25 can obviously inhibit the movement of gallbladder and promote the myoelectricity release of Oddi sphincter. Acupuncturing on CO11 and GB34 can apparently promote the shrinking movement of gallbladder and inhibit the myoelectricity release of Oddi sphincter.

Effects of different speeds and ways of instillation on bladder volume, pressure and pelvic nerve firing / 中国病理生理杂志

AIM: To investigate the changes of bladder volume , pressures and pelvic nerve firing induce by different speeds and ways of instillation .METHODS:Female SD rats (n=20) were randomly divided into 2 groups.The rats in group A was performed using 3-F polyethylene tubing inserted into the bladder through the urethra .The rats in group B were performed using 3-F tubing inserted into the dome of the bladder and secured by silk suture .The rats in both groups were infused with saline into the bladder at different speeds of 50, 100, 200 and 400μL/min.The changes of bladder vol-ume and pressure were recorded by urodynamic measuring devices .The changes of pelvic nerve firing during instillation were recorded by multi-channel physiologic recorder .RESULTS:In group A, the maximum firing frequency , bladder leak point pressure ( BLPP) and maximum voiding pressure ( MVP) were increased with the increase in the instillation speed . No significant difference of the maximum bladder capacity (MBC) at different speeds was observed .In group B, the maxi-mum firing frequency had no significant difference at different speeds .MBC was decreased with the increase in the instilla-tion speed , and exhibited significant decrease at 200 and 400 μL/min.No significant difference of BLPP and MVP at dif-ferent speeds was observed .Compared with group A , the maximum firing frequency and MBC in group B significantly de-creased at different speeds .However , BLPP and MVP in group B were higher than those in group A at the speeds of 50 and 100 μL/min.CONCLUSION:Different instillation speeds with the method of group A will not change the bladder volume but influence the pelvic nerve firing , so the process of method A may take various speeds according to different aims .How-ever, process of method B at the speed of over 200 μL/min may not be good to MBC, thus instillation under 200 μL/min is re-commended .

A clinical study of noninvasive monitoring of intra-abdominal pressure by measurement of abdominal wall tension / 中华急诊医学杂志

Objective To study the practicability of measurement of abdominal wall tension (AWT) for noninvasive monitoring of intra-abdominal pressure in ICU patients.Methods Patients with indwelling urethral catheter admitted to ICU from April 2011 to March 2013 were enrolled for a prospective study.Exclusion criteria were patients with muscular relaxants,abdominal operation in three months,acute peritonitis,abdominal mass,acute injury of urinary bladder,acute cystitis,neurogenic bladder,intrapelvis hematoma,and pelvic fracture.The AWT (N/mm) and urinary bladder pressure (UBP) (mm Hg) of all patients were measured.Statistical analysis was performed by SPSS 13.0 statistical software.The correlation of AWT and UBP were analyzed using linear regression analysis.The effects of respiration and body position on AWT were analyzed using the Paired-samples t test,and the effects of gender and body mass index (BMI) on basic level of AWT (IAP ＜ 12 mm Hg) were analyzed using the One-way ANOVA.Results A total of 51 patients were recruited in study.A significantly linear correlation between AWT and UBP were observed (R =0.986,P ＜ 0.01),the regression equation was Y =1.369 + 9.57X (P ＜ 0.01).Under the supine-flat positioning,the intra-abdominal pressures at the end of inspiration and the end of expiration were (1.65 ± 0.52) N/mm and (1.45 ± 0.54) N/mm,respectively,and under body straight up 30° supine positioning,the intra-abdominal pressures at the end of inspiration and the end of expiration were (1.25 ± 0.30) N/mm and (1.07 ± 0.35) N/mm,respectively.There were significant differences in intra-abdominal pressure between different respiratory phases and body positions (P ＜ 0.01).Basic levels of AWT in male and female were (1.09 ± 0.29) N/mm and (1.01 ± 0.34) N/mm.The basic levels of AWT in patients with BMI ＜ 18.5,18.5 ≤ BMI ≤25 and BMI ＞ 25 were (0.91 ± 0.30) N/mm,(1.02 ±0.35) N/mm and (1.16 ±0.28) N/mm respectively,but gender and BMI had no significant effects on basic level of AWT (P =0.457 and 0.313,respectively).Conclusions There was a significantly linear correlation between AWT and UBP,and respiratory phase and body position had significant effects on AWT,but gender and BMI had no significant impacts on basic level of AWT.AWT could be served as a simple,easy,and accurate method to monitor the IAP in critical ill patients.

Discussion on multiple organ dysfunction syndrome involved with pancreas injury / 中华急诊医学杂志

Objective To explore the clinical characteristics of multiple organs dysfunction syndrome (MODS) complicated with injury of pancreas.Methods A prospective study was carried out.From January 2011 to December 2012,a total of 69 patients with MODS in Department of Medical Intensie Care Unit,Fujian Provincial Hospital,Fujian Medical University were divided into 2 groups at admission.Patients of group A were suffered from MODS complicated with pancreas injury while patients of group B had MODS without complicatios.They were compared and evaluated by acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score,6-hour clearance rate of lactic acid,incidence of shock,fluid resuscitation in the first 24 and 48 hours,bladder pressure and 28-day accumulative mortality.Results APACHE Ⅱ score in group A was significantly higher than that in group B (P ＜ 0.01).Compared with group B,the 6-hour clearance rate of lactic acid was lower,the incidence of shock increased obviously,and larger volume of fluid resuscitation was needed in the first 24 and 48 hours in the group A (P ＜ 0.05).Bladder pressure,incidence of feeble bowel sounds and the mortality in the group A were higher than those in group B,but the difference had no statistical significance (P＞0.05).Conclusions MODS complicated with pancreas injury is more severe than MODS without complications thereby resulting in higher incidence of shock and the poorer response to fluid resuscitation.

The Effect of Body Mass Index on Intra-Abdominal Pressure and Blood Loss in Lumbar Spine Surgery

OBJECTIVE: The purpose of this prospective study was to evaluate the effects of body mass index (BMI) on intra-abdominal pressure (IAP) and intraoperative blood loss (IBL) during lumbar spinal surgery. METHODS: Thirty patients scheduled for single level posterior lumbar interbody fusion were allocated equally to a normal group (Group 1, BMI;18.5-22.9 kg/m2), an overweight group (Group 2, BMI; 23-24.9 kg/m2), and an obese group (Group 3, BMI; 25.0-29.9 kg/m2) according to BMI. IAP was measured using a urinary bladder catheter; 1) supine after anesthesia induction, 2) prone at skin incision, 3) prone at the end of surgery. In addition, IBL was also measured in the three groups. RESULTS: IAP in the supine position was not significantly different in groups 1, 2, and 3 (2.7 mm Hg, 3.0 mm Hg, and 4.2 mm Hg, respectively) (p=0.258), and IAP in the prone position at incision increased to 7.8 mm Hg, 8.2 mm Hg, and 10.4 mm Hg, respectively, in the three groups, and these intergroup differences were significant, especially for Group 3 (p=0.000). IAP at the end of surgery was slightly lower (7.0 mm Hg, 7.7 mm Hg, and 9.2 mm Hg, respectively). IBLs were not significantly different between the three groups. However, IBLs were found to increase with IAP in the prone position (p=0.022) and BMI (p<0.05). CONCLUSION: These results show that BMI affects IAP in the prone position more than in the supine position during lumbar spinal surgery. In addition, IBLs were found to increase with IAP in the prone position and with BMI. Thus, IBLs can be expected to be higher in morbidly obese patients due to an increased IAP.

Retention enema with rhubarb for the treatment of severe acute pancreatitis with intestine paralysis / 中华胰腺病杂志

ObjectiveTo investigate the efficacy of retention enema with rhubarb for severe acute pancreatitis (SAP) with intestine paralysis.MethodsTotally 60 patients with SAP since last five years were included,and then they were randomly divided into control group and treatment group with 30 patients in each group.Patients in control group received routine treatment of SAP,including fasting,gastrointestinal decompression,antibiotics,inhibition of pancreatic secretion,inhibition of SIRS and organ support.Patients in treatment group received additional retention-enema with rhubarb (200mL soak solution by 100g rhubarb),once daily until the recovery of bowel function.The bladder pressure ( the 1,2,5 and 6 days after admission)was evaluated,and APACHE Ⅱ score was determined.The recovery of bowel function ( the bowel sounds,the flatus and defecation of intestinal tract),SIRS recovery time,hospital stay,and the mortality were observed.ResultsAt the 5 and 6 days after admission,the bladder pressure and APACHE Ⅱ score in treatment group were significantly lower than those in control group [ (21.9 ±9.0)cmH2O vs (25.3 ±9.5)cmH2O,( 16.5 ±7.5)cmH2O vs (20.6 ±7.7)cmH2O,1 cmH2O =0.098 kPa; (9.8 ±3.8) vs (12.5 ±3.6),(9.2 ±2.4)vs ( 11.2 ± 2.5 ),P ＜ 0.05 ) ].The recovery time of bowel function and SIRS recovery time,hospital stay,and the mortality in treatment group were ( 126.8 ± 28.2 ) h,( 131.2 ± 29.6) h,( 25.6 ± 6.2) d and 16.7 ％,and the recovery time of bowel function and SIRS recovery time,hospital stay were significantly lower than those in control group [ ( 169.9 ± 53.4 ) h,( 160.4 ± 30.4) h,( 33.2 ± 6.4) d,P ＜ 0.05 ).The mortality was reduced,but the difference between the two groups was not statistically significant ( 26.7％,P ＞ 0.05 ).ConclusionsThe retention-enema with rhubarb can accelerate the recovery time of bowel function of SAP patients and reduce the hospital stay.

Mensuração da pressão intra-abdominal nas unidades de tratamento intensivo: a opinião dos médicos intensivistas / Measurement of intra-abdominal pressure in the intensive care unit: the opinion of the critical care physicians

JUSTIFICATIVA E OBJETIVOS: Os efeitos adversos da hipertensão intra-abdominal (PIA) são conhecidos há muitos anos, mas apenas recentemente deu-se importância à sua monitorização. Há evidências que cerca de um quarto dos centros de tratamento intensivo (CTI) não medem a PIA por falta de conhecimento da sua importância ou dificuldade na interpretação dos resultados. O objetivo deste estudo foi avaliar o conhecimento dos médicos sobre a síndrome de compartimento abdominal (SCA) e as características do seu manuseio. MÉTODO: Para a realização deste estudo foi enviado um questionário, contendo 12 perguntas sobre o assunto, para médicos que trabalham em CTI. RESULTADOS: O conhecimento das definições internacionais de SCA não parece estar influenciado pelo tempo de exercício da Medicina, mas sim pelo tempo de atividade dedicada à Medicina Intensiva. Embora a maioria esteja ciente da existência da SCA, menos da metade dos médicos que responderam ao questionário conhece as definições internacionais de 2004. A medida da PIA é realizada em pacientes com predisposição para SCA, por via intravesical, com injeção de 25 a 100 mL de líquido, com intervalos de 4 a 8 horas. Não parece existir valor de PIA (associado ou não a disfunções orgânicas) de consenso entre médicos desta pesquisa em relação ao tratamento clínico ou cirúrgico. CONCLUSÕES: O conhecimento sobre SCA é satisfatório quando considerados apenas os médicos que atuam majoritariamente em Medicina Intensiva. Contudo, é necessária a educação acerca da presença e gravidade da hipertensão intra-abdominal para grande parte dos médicos atuantes na Medicina Intensiva na região metropolitana do Rio de Janeiro.

BACKGROUND AND OBJECTIVES: The adverse effects of intra-abdominal hypertension are known for many years. Only recently proper attention has been given to routine intra-abdominal pressure (IAP) monitoring. There is evidence that a quarter of intensive care units (ICU) do not measure IAP, due to a lack of knowledge of its importance or difficulty in results interpretation. The aim of this study is investigate the knowledge of ICU physicians about abdominal compartimental syndrome and its management. METHODS: A questionnaire with 12 questions about this issue was mailed to ICU physicians. RESULTS: The current knowledge of the international definitions of ACS does not seem to be linked to the number of years of medical practice, but was associated with the time spent working on intensive care. Although most physicians are aware of the existence of ACS, less than half know the present international definitions. The IAP monitoring is performed in patients at risk for ACS, by means of the intravesical filling with 25 to 100 mL of liquids, in intervals varying from of 4 to 8 hours. There was no consensus on the value of IAP values (with or without organ dysfunctions) for the clinical or surgical treatments of ACS in this survey. CONCLUSIONS: The knowledge of ACS is satisfactory when we consider only physicians that devote most of their time to ICU work. However, it is necessary to improve education and knowledge of most intensive care physicians regarding the presence and severity of intra-abdominal hypertension in Rio de Janeiro.