Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 32
Filtrar
1.
Agri ; 35(2): 76-82, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37052163

RESUMEN

OBJECTIVES: Inguinal hernia repair is one of the most common daily surgeries performed in pediatrics. This prospective randomized clinical trial aims to compare ultrasound (USG)-guided ilioinguinal/iliohypogastric (IL/IH) nerve block and pre-incisional wound infiltration (PWI) in terms of post-operative analgesia on pediatric unilateral inguinal hernia repair. METHODS: After receiving ethics committee approval, 65 children aged 1-6 years who had unilateral inguinal hernia repair were allocated to USG-guided IL/IH nerve block (group IL/IH, n=32) and (group PWI, n=33). In both groups, 0.5 mg/kg 0.25% bupivacaine+2% prilocaine mixture was used by calculating the volume as 0.5 mL/kg for the block and infiltration. The primary outcome was to compare both groups' post-operative Face, Legs, Activity, Cry and Consolability (FLACC) scores. The secondary outcomes included the time to first analgesic request and the total acetaminophen consumption. RESULTS: The FLACC pain scores at the 1st, 3rd, 6th, and 12th h were statistically significantly lower in group IL/IH than in group PWI (p=0.013, p<0.001, p<0.001, and p=0.037, respectively) (p<0.001). There was no difference between the groups at the 10th and 30th min and at 24 h (p=0.472, p=0.586, and p=0.419, respectively) (p>0.05). CONCLUSION: USG-guided IL/IH nerve block in pediatric patients with inguinal hernia repair was found to be superior to PWI in terms of lower pain scores, less additional analgesia requirement, and longer first analgesia requirement.


Asunto(s)
Hernia Inguinal , Bloqueo Nervioso , Humanos , Niño , Hernia Inguinal/cirugía , Dolor Postoperatorio/prevención & control , Estudios Prospectivos , Ultrasonografía Intervencional
2.
Anesth Pain Med (Seoul) ; 18(1): 75-83, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36746906

RESUMEN

BACKGROUND: Changes in tissue oxygen saturation determined by near-infrared spectroscopy (NIRS) may help predict and determine the success of a lateral infraclavicular (LIC) block.We investigated whether evaluation of tissue oxygen saturation determined by NIRS couldbe an indicator of LIC block success. METHODS: Forty patients scheduled for hand or forearm surgery under LIC block were studied. NIRS sensors were placed on the ventral aspect of both mid-forearms, and the contralateral hand was used as the control group. NIRS values were recorded before the block andat regular intervals during the following 30 min. RESULTS: NIRS values were significantly higher in the successfully blocked patients whencompared to the complete failure, partial failure, and contralateral hand groups at the 10thmin. In the successfully blocked patients, NIRS values (mean ± SD [change in %]) increasedby 11.09 ± 4.86 (16.03%), 15.00 ± 4.53 (21.76%), 16.35 ± 5.14 (23.77%), 16.38 ± 4.88(23.85%), 16.67 ± 5.04 (24.29%), and 16.96 ± 5.71 (24.78%), respectively, from baselineto 5, 10, 15, 20, 25, and 30 min. ΔTs values were significantly higher in the successfullyblocked patients than in the complete failure patients and contralateral hand at the 30thmin. However, there was no statistically significant difference when comparing ΔTs values ofsuccessful block and partial failure block patients at the 30th min. CONCLUSIONS: We conclude that measurement of tissue oxygen saturation by NIRS withinthe scope of evaluation of the lateral infraclavicular block is a rapid, effective, and applicabletechnique.

3.
Turk J Med Sci ; 52(4): 997-1005, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36326371

RESUMEN

BACKGROUND: This study was designed to observe and compare the performance of fiberoptic laryngeal (FOL) view, leakage test (LT) and ultrasonography (USG) usage in detecting i-gel position in pediatric patients. METHODS: One hundred ten consecutive children were included in this single-armed prospective observational study. After anesthetic induction, i-gel placement confirmed using FOL and LT was evaluated using USG in three planes. According to our scoring system, acceptable and unacceptable grades (FOL, LT and USG) were determined to describe placement. Sensitivity and specificity were determined by comparing USG performance with the other two tests. RESULTS: Ultrasonography was found a sensitivity of 20% positive predictive value (PPV) for unacceptable i-gel placement according to FOL grade and a sensitivity of 37.04% with a 100% PPV according to LT grade. USG was found a specificity of 91.84% negative predictive value (NPV) of 91.84% for acceptable i-gel placement according to FOL grade and the NPV specificity of 100% with a 82.65% NPV according to LT grade. DISCUSSION: Ultrasonography demonstrated a very good diagnostic performance in the detection of optimal i-gel placement according to both FOL and LT. However, both FOL and LT showed poor diagnostic performance compared to USG in demonstrating i-gel malposition.


Asunto(s)
Ultrasonografía , Humanos , Niño , Sensibilidad y Especificidad , Estudios Prospectivos , Valor Predictivo de las Pruebas
4.
Transplant Direct ; 7(2): e659, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33521248

RESUMEN

BACKGROUND: Vascularized composite allografts (VCA) have demonstrated good clinical outcomes dependent on chronic immunosuppression. Previous work by our group and others supports that cotransplanted vascularized bone marrow (VBM) as a component of VCA offers immunologic protection to prolong graft survival. We aimed to characterize the requirements and potential mechanisms of VBM-mediated protection of VCA by modifying grafts through various strategies. METHODS: Experimental groups of mismatched cynomolgus macaque recipients received VCA transplants modified by the following approaches: heterotopic separation of the VCA and VBM components; T-cell depletion of either donor or recipient; irradiation of donor VCA; and infusion of donor bone marrow. All groups received standard immunosuppression with tacrolimus and mycophenolate mofetil. RESULTS: Experimental modifications to donor, recipient, or graft all demonstrated short-graft survivals (31 d). Chimerism levels without bone marrow infusion were transient and minimal when detected and were not associated with prolonged survival. Donor bone marrow infusion increased levels of chimerism but resulted in alloantibody production and did not improve graft survival. CONCLUSIONS: VCA graft survival is significantly reduced compared with previously reported VCA with VBM transplants (348 d; P = 0.01) when the hematopoietic niche is removed, altered, or destroyed via irradiation, depletion, or topographical rearrangement. These experimental manipulations resulted in similar outcomes to VCA grafts without cotransplanted VBM (25 d). These data support the presence of a radiosensitive, T-cell population within the VBM compartment not reconstituted by reinfusion of bone marrow cells.

5.
Turk J Surg ; 36(4): 368-373, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33778396

RESUMEN

OBJECTIVES: Sedation for upper gastrointestinal endoscopy, commonly used for diagnosis and treatment of gastrointestinal diseases, has been increasing widespread. Sedative agent requirements during sedation or anesthesia can be affected by many factors such as age and sex. In the present study, we aimed to evaluate the effects of pre-procedural anxiety levels on sedative requirements during upper gastrointestinal endoscopy. MATERIAL AND METHODS: 300 patients between the ages of 18-70 years were studied. Baseline anxiety levels were measured before the procedure using Spielberger's State-Trait Anxiety Inventory (STAI) form X1. Propofol was administered to have BIS values between 65-85 during sedation. Doses of propofol, total procedure time, satisfaction of the patients and endoscopists and BIS values were recorded. RESULTS: Pre-procedural anxiety was 44 (40-48 [20-70]). We found significant correlations between pre-procedure anxiety and the usage of propofol (mg, mg/kg, mg/kg/dk) at BIS values between 65-85, [respectively, (p= 0.451, p <0.001), (p= 0.455, p <0.001), (p= 0.428, p <0.001)]. No correlation was found between pre-procedure anxiety and procedural or sedation complications (respectively p= 0.111, p= 0.424 and p= 0.408, p= 0.363). We found significant negative correlations between pre-procedure anxiety and the satisfaction of the patients/endoscopist [respectively, (p= -0.477, p <0.001), (p= -0.495, p <0.001)]. CONCLUSION: Based on the results of this study, we suggest that there is a significant association between the pre-procedural anxiety levels and use of sedative drugs in patients undergoing upper gastrointestinal endoscopy.

6.
Sao Paulo Med J ; 137(4): 305-311, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31508796

RESUMEN

BACKGROUND: Bispectral index (BIS) monitoring can positively affect cognitive performance through decreasing the use of sedative agents. We aimed to evaluate the effect of BIS monitoring on early cognitive performance among patients undergoing sedation for colonoscopy. DESIGN AND SETTING: Randomized, controlled trial in a university hospital. METHODS: 100 patients were randomized into two groups. In the monitored group (n = 50), the depth of anesthesia was monitored using the BIS, and BIS scores were maintained between 60 and 80. In the usual care group (n = 50), BIS monitoring was not performed. To determine the patients' baseline cognitive performance levels, the mini-mental state examination (MMSE), Trieger dot test (TDT) and clock drawing test (CDT) were used. The patients' post-procedure cognitive performance levels were determined when they were classified as ready for discharge. RESULTS: The total volume (mg) of propofol used [median (range) IQR] in the sedation procedure was lower in the monitored group [100 (50-200) 100-140] than in the usual care group [150 (75-200) 100-200] (P < 0.001). The discharge scores [mean (SD)] using MMSE and CDT were higher in the monitored group [26 (3) and 3 (1), respectively] than in the usual care group [23 (3) and 2 (1), respectively] (P = 0.002 and P = 0.002, respectively). The discharge scores using TDT [mean (SD)] were lower in the monitored group [11 (7)] than in the usual care group [15 (11)] (P = 0.033). CONCLUSION: BIS monitoring among sedated patients was associated with lower propofol use and smaller decline in cognitive performance. CLINICAL TRIAL REGISTRATION: This trial was registered in the Australian New Zealand Clinical Trial Registry (ACTRN12617000134325).


Asunto(s)
Cognición/efectos de los fármacos , Colonoscopía/métodos , Hipnóticos y Sedantes/administración & dosificación , Midazolam/administración & dosificación , Monitoreo Fisiológico/métodos , Propofol/administración & dosificación , Adolescente , Adulto , Anciano , Periodo de Recuperación de la Anestesia , Electroencefalografía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Adulto Joven
7.
São Paulo med. j ; 137(4): 305-311, July-Aug. 2019. tab, graf
Artículo en Inglés | LILACS | ID: biblio-1043432

RESUMEN

ABSTRACT BACKGROUND: Bispectral index (BIS) monitoring can positively affect cognitive performance through decreasing the use of sedative agents. We aimed to evaluate the effect of BIS monitoring on early cognitive performance among patients undergoing sedation for colonoscopy. DESIGN AND SETTING: Randomized, controlled trial in a university hospital. METHODS: 100 patients were randomized into two groups. In the monitored group (n = 50), the depth of anesthesia was monitored using the BIS, and BIS scores were maintained between 60 and 80. In the usual care group (n = 50), BIS monitoring was not performed. To determine the patients' baseline cognitive performance levels, the mini-mental state examination (MMSE), Trieger dot test (TDT) and clock drawing test (CDT) were used. The patients' post-procedure cognitive performance levels were determined when they were classified as ready for discharge. RESULTS: The total volume (mg) of propofol used [median (range) IQR] in the sedation procedure was lower in the monitored group [100 (50-200) 100-140] than in the usual care group [150 (75-200) 100-200] (P < 0.001). The discharge scores [mean (SD)] using MMSE and CDT were higher in the monitored group [26 (3) and 3 (1), respectively] than in the usual care group [23 (3) and 2 (1), respectively] (P = 0.002 and P = 0.002, respectively). The discharge scores using TDT [mean (SD)] were lower in the monitored group [11 (7)] than in the usual care group [15 (11)] (P = 0.033). CONCLUSION: BIS monitoring among sedated patients was associated with lower propofol use and smaller decline in cognitive performance. CLINICAL TRIAL REGISTRATION: This trial was registered in the Australian New Zealand Clinical Trial Registry (ACTRN12617000134325).


Asunto(s)
Humanos , Masculino , Femenino , Adolescente , Adulto , Persona de Mediana Edad , Anciano , Adulto Joven , Midazolam/administración & dosificación , Propofol/administración & dosificación , Colonoscopía/métodos , Cognición/efectos de los fármacos , Hipnóticos y Sedantes/administración & dosificación , Monitoreo Fisiológico/métodos , Periodo de Recuperación de la Anestesia , Satisfacción del Paciente , Electroencefalografía
8.
J Vasc Access ; 20(6): 672-676, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30977416

RESUMEN

BACKGROUND: Central venous cannulation is an invasive procedure commonly used by many physicians. The aim of this study was to evaluate the effects of the right lateral tilt position on the cross-sectional area and size of the right internal jugular vein, and the relationship between the right internal jugular vein and the carotid artery. METHOD: Forty healthy volunteers aged over 18 years were included in this prospective, observational study. The right internal jugular vein cross-sectional area and the anatomic relationship with the carotid artery were assessed using ultrasound imaging. This measurement was repeated for four positions (baseline position, 10° right tilt position, 10° Trendelenburg position, and 10° right tilt + 10° Trendelenburg position). The head was rotated 30° to the contralateral side in all patients. RESULTS: The mean (standard deviation) right internal jugular vein cross-sectional area, transverse diameter, and anteroposterior diameter were significantly increased with the Trendelenburg position and 10° right tilt + 10° Trendelenburg position (p < 0.05). There were no significant differences in right internal jugular vein cross-sectional area, transverse diameter, and anteroposterior diameter between the baseline position and 10° right tilt position (p > 0.05). CONCLUSION: We found that the right lateral tilt position had no effect on the internal jugular vein cross-sectional area and that the Trendelenburg position was still the most valid position for safely increasing the right internal jugular vein cross-sectional area.


Asunto(s)
Inclinación de Cabeza , Venas Yugulares/diagnóstico por imagen , Posicionamiento del Paciente/métodos , Ultrasonografía , Puntos Anatómicos de Referencia , Arterias Carótidas/diagnóstico por imagen , Voluntarios Sanos , Humanos , Valor Predictivo de las Pruebas , Estudios Prospectivos
9.
Turk J Anaesthesiol Reanim ; 46(3): 238-240, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30140522

RESUMEN

Scalp block has become a frequently used technique with an increasing number of indications today. Despite the many advantages of the scalp block, certain rare complications have been identified. It should be remembered that although it is a relatively safe procedure, it may lead to the development of facial nerve palsy. In this article, we present a case of transient facial nerve palsy developed after the scalp block that was used to drain the subdural hematoma with a burr hole.

10.
Med Princ Pract ; 27(1): 39-43, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29402789

RESUMEN

OBJECTIVE: In this study, the aim was to investigate the effect of hyoscine N-butylbromide (HnBB) pretreatment on pain during propofol injection. SUBJECTS AND METHODS: In this prospective, randomized, placebo-controlled and double-blind trial, 60 patients scheduled to undergo routine outpatient surgery under general anesthesia were randomly allocated to 2 groups, the HnBB (n = 30) and sodium chloride (n = 30) groups. Twenty seconds after the injection of 20 mg HnBB or 0.9 % sodium chloride, a 50-mg dose of propofol was injected in 2-3 s. Ten seconds later, the pain intensity was assessed using a 4-point scale: no pain (0), mild (1), moderate (2), and severe (3) pain. The Student t test was used for the analysis of parametric data and the Pearson χ2 test for categorical data. RESULTS: The occurrence of pain in the HnBB group (43.3%) was significantly lower than the control group (73.3%) (p < 0.018). Of the 30 patients in each group, 10 in the control group and 3 in the HnBB group experienced severe pain (p = 0.001). CONCLUSIONS: Pretreatment with 20 mg HnBB significantly reduced propofol injection pain compared to placebo.


Asunto(s)
Bromuro de Butilescopolamonio/administración & dosificación , Dolor/etiología , Dolor/prevención & control , Parasimpatolíticos/administración & dosificación , Propofol/efectos adversos , Adolescente , Adulto , Anciano , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Estudios Prospectivos , Adulto Joven
11.
Paediatr Anaesth ; 28(3): 275-280, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29349848

RESUMEN

BACKGROUND: The combination of propofol and ketamine is commonly used for total intravenous anesthesia. These drugs can be delivered in different syringes or in the same syringe. We hypothesized that the drugs might separate and different concentrations of each drug could be found in different parts of the syringe during the procedure period when they were mixed in 1 syringe. METHODS: Twelve 60-mL polypropylene syringes were prepared by mixing propofol and ketamine as 4 groups on the basis of propofol/ketamine mixture ratios (5:1 and 6.7:1) and propofol solution concentrations. Syringes were placed upright in the vertical position into a rack and kept at room temperature (21.5-22.5°C), in daylight conditions and were not moved for 360 minutes. Samples of the mixture were taken from both the top and the bottom of the syringe. The first 1 mL of the samples was discarded, the following second 1 mL of the samples was filtered using 0.2-µm polytetrafluoroethylene filters and measured twice (n = 6). Samples were taken at the following time intervals: T0, T10, T30, T60, T90, T120, T180, T240, T300, and T360 min. Syringes were checked visually for any color change and separation lines between the drugs. RESULTS: There were no significant differences between the propofol and ketamine concentrations of the top and bottom samples in all 4 groups. In addition, there were no statistically significant changes of propofol and ketamine concentrations of samples over 360 minutes in any of the 4 groups. No visual changes were observed during 6 hours' observation. CONCLUSION: The results of our measurements demonstrated that mixtures of propofol (1% and 2%) and ketamine at 5:1 and 6.7:1 ratios could be used in terms of mixture homogeneity and stability in a polypropylene syringe during a 6-hour period at room temperature.


Asunto(s)
Anestesia Intravenosa/métodos , Anestésicos Combinados/análisis , Anestésicos Disociativos/análisis , Anestésicos Intravenosos/análisis , Ketamina/análisis , Propofol/análisis , Niño , Cromatografía Líquida de Alta Presión , Estabilidad de Medicamentos , Humanos , Jeringas
12.
Tissue Eng Part A ; 24(9-10): 786-793, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29017397

RESUMEN

Organ scaffold bioengineering is currently limited by the inability to effectively repopulate the scaffold with appropriately distributed functional cells. We examined the feasibility of a decellularized liver scaffold to support the growth and function of multilineage allogenic cells derived from either adult or neonatal liver cells. Cell slurries from neonatal and adult rat livers containing hepatocytes, cholangiocytes, and endothelial cells were introduced into decellularized adult rat liver scaffolds via the bile duct. Recellularized grafts were perfused with cell growth medium through the portal vein for 7 days. Concurrently, the same cell slurries were incubated on culture dishes. Albumin levels were measured from graft perfusates and cell culture media. Immunofluorescent assays were used to verify the colocalization of cholangiocytes, hepatocytes, endothelial cells, and Kupffer cells in the recellularized grafts by using anti-CK7, anti-hepatocyte antigen, anti-CD34, and anti-CD68, respectively. More robust albumin production was detected in the perfusate of scaffolds recellularized with a neonatal liver cell slurry compared with those with an adult liver cell slurry. The perfusates from all recellularized grafts showed increasing albumin concentration over 7 days; higher levels were detected in the constructs compared with the cell culture. Scaffolds seeded with a neonatal liver cell slurry showed the presence of hepatocytes, cholangiocytes, endothelial cells, and Kupffer cells. Results demonstrated the superiority of neonatal allogenic cells over adult cells of the same origin, possibly because of their pluripotent behavior. Liver bio-scaffolds supported the growth of four different liver cell lines. Recellularized grafts exhibited preserved functionality as demonstrated by albumin production, and constructs seeded with a neonatal cell slurry demonstrated proliferation on Ki-67 assay, thus representing a promising model for a transplantable construct.


Asunto(s)
Hígado/citología , Ingeniería de Tejidos/métodos , Andamios del Tejido/química , Animales , Células Cultivadas , Células Endoteliales/citología , Hepatocitos/citología , Inmunohistoquímica , Macrófagos del Hígado/citología , Masculino , Ratas , Ratas Wistar
13.
Xenotransplantation ; 24(6)2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28940313

RESUMEN

BACKGROUND: Wild-type pigs express several carbohydrate moieties on their cell surfaces that differ from those expressed by humans. This difference in profile leads to pig tissue cell recognition of human blood cells causing sequestration, in addition to antibody-mediated xenograft injury. One such carbohydrate is N-glycolylneuraminic acid (Neu5Gc), a sialic acid molecule synthesized in pigs but not in humans. Here, we evaluate livers with and without Neu5Gc in an ex vivo liver xeno perfusion model. METHODS: Livers from pigs with an α1,3-galactosyl transferase gene knockout (GalTKO) and transgenic for human membrane cofactor (hCD46) with (n = 5) or without (n = 7) an additional Neu5Gc gene knock out (Neu5GcKO) were perfused ex vivo with heparinized whole human blood. A drug regimen consisting of a histamine inhibitor, thromboxane synthase inhibitor, and a murine anti-human GPIb-blocking antibody fragment was given to half of the experiments in each group. RESULTS: Liver function tests (AST and ALT) were not significantly different between livers with and without the Neu5GcKO. GalTKO.hCD46.Neu5GcKO livers had less erythrocyte sequestration as evidenced by a higher mean hematocrit over time compared to GalTKO.hCD46 livers (P = .0003). The addition of Neu5GcKO did not ameliorate profound thrombocytopenia seen within the first 15 minutes of perfusion. TXB2 was significantly less with the added drug regimen (P = .006) or the presence of Neu5GcKO (P = .017). CONCLUSIONS: The lack of Neu5Gc expression attenuated erythrocyte loss but did not prevent profound early onset thrombocytopenia or platelet activation, although TXB2 levels were decreased in the presence of Neu5GcKO.


Asunto(s)
Galactosiltransferasas/genética , Xenoinjertos/efectos de los fármacos , Ácidos Neuramínicos/farmacología , Trasplante Heterólogo , Animales , Animales Modificados Genéticamente , Técnicas de Inactivación de Genes/métodos , Supervivencia de Injerto/inmunología , Humanos , Proteína Cofactora de Membrana/genética , Porcinos , Trombocitopenia/terapia
14.
J Craniomaxillofac Surg ; 45(9): 1552-1557, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28747263

RESUMEN

PURPOSE: Orbital volume calculations allow surgeons to design patient-specific implants to correct volume deficits. It is estimated that changes as small as 1 ml in orbital volume can lead to enophthalmos. Awareness of the limitations of orbital volume computed tomography (CT) measurements is critical to differentiate between true volume differences and measurement error. The aim of this study is to analyze the validity and reliability of CT orbital volume measurements. MATERIALS AND METHODS: A total of 12 cadaver orbits were scanned using a standard CT maxillofacial protocol. Each orbit was dissected to isolate the extraocular muscles, fatty tissue, and globe. The empty bony orbital cavity was then filled with sculpting clay. The volumes of the muscle, fat, globe, and clay (i.e., bony orbital cavity) were then individually measured via water displacement. The CT-derived volumes, measured by manual segmentation, were compared to the direct measurements to determine validity. RESULTS AND CONCLUSIONS: The difference between CT orbital volume measurements and physically measured volumes is not negligible. Globe volumes have the highest agreement with 95% of differences between -0.5 and 0.5 ml, bony volumes are more likely to be overestimated with 95% of differences between -1.8 and 2.6 ml, whereas extraocular muscle volumes have poor validity and should be interpreted with caution.


Asunto(s)
Órbita/anatomía & histología , Tomografía Computarizada por Rayos X , Cadáver , Humanos , Órbita/diagnóstico por imagen , Tamaño de los Órganos , Reproducibilidad de los Resultados
15.
Surg Laparosc Endosc Percutan Tech ; 27(1): 30-35, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28145966

RESUMEN

PURPOSE: Although positive end-expiratory pressure (PEEP) is commonly used to improve respiratory mechanics and oxygenation during pneumoperitoneum (PP), the effect of PEEP on cerebral homeostasis during carbon dioxide PP remains uncertain. This study investigated the changes in regional cerebral oxygen saturation (rSO2) associated with 0, 5, and 10 cm H2O PEEP during PP while undergoing laparoscopic cholecystectomy under sevoflurane anesthesia. MATERIALS AND METHODS: In total, 105 patients between the ages of 18 to 60 years, scheduled to undergo laparoscopic cholecystectomy under general anesthesia, were studied. The patients were randomized, into 3 groups: group I (n=35) with no external PEEP, group II (n=35) with external PEEP of 5 cm H2O, group III (n=35) with external PEEP of 10 cm H2O. Heart rate, mean blood pressure, oxygen saturation, and rSO2 values were continuously recorded from awake status to tracheal extubation. RESULTS: The measurements of hemodynamic parameters were statistically similar between 3 groups (P>0.05). rSO2 values were statistically similar between 3 groups (P>0.05). CONCLUSIONS: We consider that both 5 and 10 cm H2O PEEP levels can be safely used during PP applied during laparoscopic surgery, without affecting hemodynamics, and without causing a decline in rSO2.


Asunto(s)
Encéfalo/metabolismo , Colecistectomía Laparoscópica/métodos , Respiración con Presión Positiva/métodos , Adolescente , Adulto , Anestésicos por Inhalación , Presión Sanguínea/fisiología , Femenino , Frecuencia Cardíaca/fisiología , Hemodinámica , Humanos , Masculino , Éteres Metílicos , Persona de Mediana Edad , Oxígeno/sangre , Neumoperitoneo Artificial/métodos , Estudios Prospectivos , Sevoflurano , Espectroscopía Infrarroja Corta , Adulto Joven
16.
Organogenesis ; 13(1): 16-27, 2017 01 02.
Artículo en Inglés | MEDLINE | ID: mdl-28029279

RESUMEN

Recent years have seen a proliferation of methods leading to successful organ decellularization. In this experiment we examine the feasibility of a decellularized liver construct to support growth of functional multilineage cells. Bio-chamber systems were used to perfuse adult rat livers with 0.1% SDS for 24 hours yielding decellularized liver scaffolds. Initially, we recellularized liver scaffolds using a human tumor cell line (HepG2, introduced via the bile duct). Subsequent studies were performed using either human tumor cells co-cultured with human umbilical vein endothelial cells (HUVECs, introduced via the portal vein) or rat neonatal cell slurry (introduced via the bile duct). Bio-chambers were used to circulate oxygenated growth medium via the portal vein at 37C for 5-7 days. Human HepG2 cells grew readily on the scaffold (n = 20). HepG2 cells co-cultured with HUVECs demonstrated viable human endothelial lining with concurrent hepatocyte growth (n = 10). In the series of neonatal cell slurry infusion (n = 10), distinct foci of neonatal hepatocytes were observed to repopulate the parenchyma of the scaffold. The presence of cholangiocytes was verified by CK-7 positivity. Quantitative albumin measurement from the grafts showed increasing albumin levels after seven days of perfusion. Graft albumin production was higher than that observed in traditional cell culture. This data shows that rat liver scaffolds support human cell ingrowth. The scaffold likewise supported the engraftment and survival of neonatal rat liver cell slurry. Recellularization of liver scaffolds thus presents a promising model for functional liver engineering.


Asunto(s)
Conductos Biliares/citología , Hígado/citología , Andamios del Tejido/química , Albúminas/metabolismo , Animales , Animales Recién Nacidos , Compartimento Celular , Linaje de la Célula , Proliferación Celular , Rastreo Celular , ADN/metabolismo , Células Hep G2 , Células Endoteliales de la Vena Umbilical Humana/metabolismo , Humanos , Masculino , Ratas Wistar , Reproducibilidad de los Resultados
17.
Pak J Med Sci ; 32(4): 869-74, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27648030

RESUMEN

OBJECTIVE: The McGrath Video laryngoscope is a newly developed video laryngoscope that significantly improves laryngeal view and facilitates endotracheal intubation in difficult airways. However in patients with normal airway that is not mentioned before. The aim of this study was to compare the McGrath video laryngoscope with the Macintosh laryngoscope in patients with normal airways. METHODS: A total of 100 patients requiring orotracheal intubation, were randomized to either having intubation with the McGrath video laryngoscope or the Macintosh laryngoscope. The primary outcome was the laryngoscopy view using percentage of glottic opening (POGO) score. Secondary outcomes included Cormack and Lehane grading system, time to intubation, number of failed intubations, number of attempts before successful intubation and hemodynamic parameters during intubation. RESULTS: POGO scores were significantly higher in the McGrath group compared with the Macintosh group (p<0.001) despite time to successful intubation was similar in both groups. The McGrath video laryngoscope provided more Grade-I laryngoscopic views than the Macintosh laryngoscope (p<0.001). Number of more than one attempts in order to achieve success was significantly higher in the Macintosh group (p=0.001). The number of minor complications were significantly higher in the Macintosh group (p=0.004). There were no significant changes in hemodynamic responses between the two groups (p>0.05). CONCLUSION: McGrath video laryngoscope allows patients with normal airways to achieve higher POGO scores and significantly more Grade-I laryngoscopic views when compared with the Macintosh laryngoscope.

18.
Med Arch ; 70(2): 112-5, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27147784

RESUMEN

BACKGROUND: Anxiety is a common preprocedural problem and during processing especially in interventional medical processes. AIM: Aim of this study was to assess the level of anxiety in patients who will undergo upper gastrointestinal endoscopy and coloscopy. METHODS: Five hundred patients scheduled to undergo sedation for elective upper gastrointestinal endoscopy and colonoscopy were studied. Beck Anxiety Inventory (BAI) was administered to each patient before brought to the endoscopy room. Demographic data of patients were collected. RESULTS: BAI scores and anxiety levels were significantly lower in; males compared to females, patients with no comorbidity compared to patients with comorbidity (both P values < 0.001). BAI scores were significantly lower in patients educational status university and upper compared to patients educational status primary-high school (p=0.026). There were no significant difference between BAI and anxiety levels compared to procedures (Respectively, P=0.144 P=0.054). There were no significant difference between BAI scores and anxiety levels compared to age groups (Respectively, P=0.301 P=0.214). CONCLUSIONS: We think that level of anxiety in patients who will undergo upper gastrointestinal endoscopy and colonoscopy was effected by presence of comorbidities and gender but was not effected by features such as age, procedure type and educational status.


Asunto(s)
Ansiedad/etiología , Colonoscopía/psicología , Sedación Consciente/psicología , Procedimientos Quirúrgicos Electivos/psicología , Endoscopía del Sistema Digestivo/psicología , Adolescente , Adulto , Distribución por Edad , Anciano , Anciano de 80 o más Años , Colonoscopía/métodos , Comorbilidad , Escolaridad , Endoscopía del Sistema Digestivo/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Distribución por Sexo , Adulto Joven
19.
Front Neurol ; 7: 7, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26869987

RESUMEN

Neglected or undiagnosed congenital muscular torticollis in adults is quite rare, although it is the third most common congenital deformity in the newborn (1). When left untreated at an early age, deficits in lateral and rotational range of motion can occur along with irreversible facial and skeletal deformities that develop over time. Subtle cases can go unnoticed until early adulthood, with predominant fibrotic replacement in the sternocleidomastoid (SCM) making physical therapy and chemodenervation mostly ineffective. Surgical intervention, in these cases, can prove effective in alleviating pain, improving function and cosmesis (2). We report an update on a previously reported case, misdiagnosed as cervical dystonia, which had undergone partial myectomy of the anterior belly of the SCM with some relief of symptoms but without total resolution after the correct diagnosis of fibromatosis colli (3).

20.
Curr Transplant Rep ; 3(4): 395-403, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-32288984

RESUMEN

The objective of this review is to summarize the collective knowledge regarding the risks and complications in vascularized composite tissue allotransplantation (VCA), focusing on upper extremity and facial transplantation. The field of VCA has entered its second decade with an increasing experience in both the impressive good outcomes, as well as defining challenges, risks, and experienced poor results. The limited and selective publishing of negative outcomes in this relatively new field makes it difficult to conclusively evaluate outcomes of graft and patient survival and morbidities. Therefore, published data, conference proceedings, and communications were summarized in an attempt to provide a current outline of complications. These data on the medical complications of VCA should allow for precautions to avoid poor outcomes, data to better provide informed consent to potential recipients, and result in improvements in graft and patient outcomes as VCA finds a place as a therapeutic option for selected patients.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA