oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 242 matches for " oxygenation "
All listed articles are free for downloading (OA Articles)
Page 1 /242
Display every page Item
Camara hiperbárica de acrílico para animais de pequeno porte
Pereira, Maria Ligia Lyra;Teles, Adilson Pereira;Pereira Neto, Julio;
Acta Cirurgica Brasileira , 2001, DOI: 10.1590/S0102-86502001000400014
Abstract: the aim of this work was develop an hyperbaric chamber for experimental research in small animals. acrylic was chosen because its transparency, capacity to support pressure over 1 atm (1 atmosphere) and its light weight which makes the transport easy.
Interval exercise training improves tissue oxygenation in patients with chronic heart failure  [PDF]
Ioannis Vasileiadis, Maria Kravari, John Terrovitis, Vasiliki Gerovasili, Stavros Drakos, Argyrios Ntaliannis, Stavros Dimopoulos, Maria Anastasiou-Nana, Serafim Nanas
World Journal of Cardiovascular Diseases (WJCD) , 2013, DOI: 10.4236/wjcd.2013.33047
Abstract:

Aim: Aim of our study was to evaluate the effects of interval exercise training (IT) programs, regarding whole body oxygen uptake and peripheral tissue oxygenation, in Chronic Heart Failure (CHF) patients during recovery. Methods: Twenty-six CHF patients (21 males/5 females), mean age of 49 ± 12 years, participated in the study. Fifteen patients were assigned to IT and 11 patients were assigned to IT followed by strength training. All patients were trained for 40 minutes per session, 3 times per week, for 12 weeks. They performed a symptom-limited cardiopulmonary exercise testing (CPET), before and after the completion of the program. Muscle tissue oxygen saturation (StO2) of quadriceps femoris was continuously measured by Near Infrared Spectroscopy (NIRS) during CPET and during the recovery period after the end of exercise. Results: No differences were noted between the two patient groups regarding whole body and peripheral tissue oxygenation indices and, therefore, data from all patients were pooled. After training, an increase in peak oxygen uptake (17 ± 4.5 to 19 ± 5.5 ml/kg/min, p < 0.05), gas exchange threshold (11 ± 3.5 to 12.5 ± 3.5 ml/kg/min, p < 0.05), peak work rate achieved (105 ± 29 to 124 ± 37 Watt, p < 0.05) and the first degree slope of VO2 at the first minute of recovery (0.45 ± 0.2 to 0.61 ±0.3 L/min2, p < 0.05) was noted. In addition, tissue re-oxygenation time constant was decreased (65 ± 25 to 52 ± 28 sec, p < 0.001). Conclusion: In conclusion, interval exercise training accelerates oxygen uptake and peripheral tissue oxygenation during recovery from exercise in CHF patients.

Interval exercise training improves tissue oxygenation in patients with chronic heart failure  [PDF]
Ioannis Vasileiadis, Maria Kravari, John Terrovitis, Vasiliki Gerovasili, Stavros Drakos, Argyrios Ntaliannis, Stavros Dimopoulos, Maria Anastasiou-Nana, Serafim Nanas
World Journal of Cardiovascular Diseases (WJCD) , 2013, DOI: 10.4236/wjcd.2013.31A019
Abstract:

Aim: Aim of our study was to evaluate the effects of interval exercise training (IT) programs, regarding whole body oxygen uptake and peripheral tissue oxygenation, in Chronic Heart Failure (CHF) patients during recovery. Methods: Twenty-six CHF patients (21 males/5 females), mean age of 49 ± 12 years, participated in the study. Fifteen patients were assigned to IT and 11 patients were assigned to IT followed by strength training. All patients were trained for 40 minutes per session, 3 times per week, for 12 weeks. They performed a symptom-limited cardiopulmonary exercise testing (CPET), before and after the completion of the program. Muscle tissue oxygen saturation (StO2) of quadriceps femoris was continuously measured by Near Infrared Spectroscopy (NIRS) during CPET and during the recovery period after the end of exercise. Results: No differences were noted between the two patient groups regarding whole body and peripheral tissue oxygenation indices and, therefore, data from all patients were pooled. After training, an increase in peak oxygen uptake (17 ± 4.5 to 19 ± 5.5 ml/kg/min, p < 0.05), gas exchange threshold (11 ± 3.5 to 12.5 ± 3.5 ml/kg/min, p < 0.05), peak work rate achieved (105 ± 29 to 124 ± 37 Watt, p < 0.05) and the first degree slope of VO2 at the first minute of recovery (0.45 ± 0.2 to 0.61 ±0.3 L/min2, p < 0.05), was noted. In addition, tissue re-oxygenation time constant was decreased (65 ± 25 to 52 ± 28 sec, p < 0.001). Conclusion: In conclusion, interval exercise training accelerates oxygen uptake and peripheral tissue oxygenation during recovery from exercise in CHF patients.

Utilización de la oxigenación apneica en la simpatectomía transtorácica endoscópica
Nodal Ortega,Josefina; Olivé González,Juan Bautista; Machado álvarez,Mayuri; Quintana Pajón,Ingrid;
Revista Cubana de Anestesiolog?-a y Reanimaci?3n , 2010,
Abstract: even now it is arguable the anesthetic behavior of patients underwent thoracoscopy for a surgical treatment of hyperhidrosis of upper extremities. objectives: to identify the behavior of oxygenation and carbon dioxide (co2 ) at the end of the exhalation, as well as the potential side effects with the application of apneic oxygenation in patients in which a t2-t3 endoscopic transthoracic sympathectomy will be carried out. material and methods: a cross-sectional and descriptive study was conducted in 16 patients underwent apneic oxygenation using a conventional orotracheal tube. at intraoperative period the apnea time was measured by hemithorax and the arterial peripheral oxygen saturation (sp02) was assessed and the carbon dioxide at the end of the exhalation (etco2), as well as the heart rate (hr) and the non-invasive blood pressure (bp). results: despite the apnea times the oxygenation remained optimal in all the cases, the mean value of etco2 in under the 60 mmhg without significant changes of hr and the bp regarding the basal values. conclusions: the apneic oxygenation technique is useful in this type of procedure.
Oxígeno adicional en incubación del pollo de engorda
Prado-Rebolledo,O.F.; Morales,B.J.E.; Quintana,L.J.A.; González,A.M.J.; Arce,M.J.;
Archivos de Zootecnia , 2009, DOI: 10.4321/S0004-05922009000100009
Abstract: the aim of this study was to evaluate the effect of different oxygen concentration during incubation on parameters in broiler chickens. two hatchers with capacity of 4800 eggs were used to provide different oxygen concentration (17.5 vs. 21%). 300 eggs were weighted and randomly distributed in both machines. the humidity loss, hatchability, weight and length of chick, blood glucose level, haematocrit, residual yolk and embryonic mortality were recorded. at the greatest oxygen concentration hatchability increased 2.13 percentage points, humidity was lost more efficiently, and the length of chicks increased 0.44 cm; glycemia was reduce (-16.4 mg/dl), while haematocrit increased 25.75 ± 1.86%), being higher the embryo mortality during their first stage of development. the additional oxygen in 21% during the incubation may increase the hatchability, without compromising chick integrity.
OXIGENOTERAPIA HIPERBáRICA EN EL TRATAMIENTO DE LA CISTITIS HEMORRáGICA POSRADIOTERAPIA: EXPERIENCIA EN EL HOSPITAL MILITAR CENTRAL
DURáN,EDUARDO; GUZMáN,FERNANDO; MONSALVE,GUILLERMO A;
Revista Med , 2007,
Abstract: the objective of this work is to describe the clinical course of the pelvic post-radiotherapy hemorrhagic cystitis with hyperbaric oxygen therapy. a descriptive, retrospective, series of cases were studied, analyzing the clinical records of 10 patientes atended in the service of hyperbaric medicine of hospital militar central in bogotá, which were referred from the service of urology of the same institution with diagnosis of post-radiotherapy hemorrhagic cystitis, in a time span from january/2001 to february/2007. the results were tabulated with the predetermined variables and were processed in excel. distribution of patients showed that 70% were males, the mean age was 74.3 years (63-88), 70% had post-radiotherapy cistitis and proctitis, while the remaining had only cystitis. all the males were irradiated because of prostate cancer while the females were irradiated because of cervix cancer. 40% received brachytherapy. the mean of hbo (hyperbaric oxygen therapy) sessions was 12 (7-15). the average of time of the onset of the symptoms to the starting of the hbo was 16.4 months, and the follow-up was in average 1.6 months. all the patients were free of bleeding at the end of the following-up period. these results allowed us to conclude that the hyperbaric oxygen therapy is a useful and a safe alternative in the treatment of the patients with post-radiotherapy hemorrhagic cistitis.
Tratamiento coadyuvante con oxigenación hiperbárica de la hernia discal lumbar L5-S1
González De La Paz,José E; Maturel Lorenzo,Joaquín; Ulloa Arias,Beatriz;
Revista Cubana de Medicina Militar , 2007,
Abstract: a female patient with the diagnosis of disc herniation treated with hyperbaric oxygenation for 6 months was presented. 2.3 absolute atmospheres were applied with a time of isopressure of 50 min. she received 15 sessions of treatment, which were repeated at 3 and 6 months. the evolution of the patient was satisfactory, since the paravertebral pain and the neurological symptomatology were reduced.
New Oxygenation Method Based on Pulse Oximeter
American Journal of Biomedical Engineering , 2012, DOI: 10.5923/j.ajbe.20120204.06
Abstract: The body’s need of oxygen is certainbecause of its necessity to make energy from the food. Lungs deliver oxygen to the blood and if it cannot get enough oxygen to the blood, the patient feels short of breath, which is very uncomfortable. In this state, oxygen therapy can be helpful. Blood gas measurement provides vital information about oxygenation, ventilation and acid-base status. However, these measurements only provide a snapshot of the patient’s condition taken at the time that blood sample was drawn. Oxygen level can change very quickly. In the absence of continuous oxygenation monitoring, these changes may go undetected until it is too late. In this paper, we present a new method of online oxygenation, which, could give oxygen to the patient with high accuracy and solve many problems involved in other methods. Ten patients; five COPD and five patients suffer of asthmawere examined with this new method of oxygenation. None of the patients exhibited signs of oxygen toxicity during new method of oxygen therapy. Experimental results show the acceptability of new oxygenation method in examined subjects.
Quadruple H therapy for vasospasm
Walid M,Zaytseva Nadezhda
Annals of Indian Academy of Neurology , 2009,
Abstract: Triple H therapy has been enthusiastically used to increase cerebral blood flow in cases of vasospasm. Nevertheless, the oxygen-carrying capacity of the blood is lowered with this treatment. This side effect can theoretically be partially corrected using hyperbaric oxygen therapy (HBO) which appears to be the missing ring in the above therapeutic regimen. We conducted a review of of the available evidence regarding the beneficial effects of HBO in preventing postoperative ischemic complications due to vasospasm after surgery on ruptured cerebral aneurysms and the rationale for including HBO into the standards of care of these difficult patients.
Effect of Higher Mean Arterial Pressure with Norepinephrine on Tissue Oxygenation and Perfusion in Patients of Septic Shock  [PDF]
Sandeep Sharma, Mridula Pawar, Mohandeep Kaur, Nidhi Srivastava, Saurav Mustafi
International Journal of Clinical Medicine (IJCM) , 2012, DOI: 10.4236/ijcm.2012.35076
Abstract: The current survival sepsis guideline proposes the use of vasopressors and fluid resuscitation to maintain the mean arterial pressure (MAP) ≥ 65 mmHg. Titrating catecholamine infusion to achieve higher MAP has been demonstrated to improve tissue oxygenation, microcirculation, renal function and overall outcome of the patient in some studies and literature on actual hemodynamic goals is scarce. AIM: To study the influence of two MAP on tissue oxygenation and perfusion parameters in patients of septic shock on norepinephrine infusion. SUBJECT AND MATERIALS: Forty adult patients with the diagnosis of septic shock were enrolled. In all patients norepinephrine was titrated to first stabilize the MAP at 65 ± 5 mmHg (Set I), followed by MAP of 85 ± 5 mmHg (Set II). Heart rate (HR), Central venous oxygen saturation (SCVO2), Transcutaneous partial pressure of oxygen (PtcO2) by TCM 400/TINA (using miniature Clark electrode), Arterial partial pressure of oxygen(PaO2), PtO2/PaO2 ratio, Urine output and Serum Base deficit were recorded in each Set after 2 hrs of stabilization. RESULTS: There was a significant increase in transcutaneous partial pressure of oxygen PtcO2 (p < 0.0001), PtO2/PaO2 (p < 0.0001), ScvO2 (p < 0.0001), urine output (p < 0.006) on increasing the MAP from 65mmHg to 85mmHg. Serum base deficit also improved (p < 0.0001). CONCLUSION: Higher MAP with norepinephrine is associated with better perfusion, oxygenation parameters in patients with established septic shock. These findings suggest that there is improvement in tissue oxygenation parameters using escalating doses of norepinephrine to achieve higher MAP without inherent adverse effect
Page 1 /242
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.