bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mejoría del sueño en los pacientes operados por síndrome del túnel carpiano
Authors: Viollaz Gonzalo , Altamirano Nicolás N. , Gómez Diego , Muratore Álvaro , Tedeschi Alejandro , Teruya Gustavo 
Published: October 2021

Introducción: Los pacientes con síndrome del túnel carpiano suelen tener síntomas nocturnos que alteran la calidad del sueño y, muchas veces, son el motivo de consulta. Se estudiaron en profundidad los cambios objetivos luego de la liberación del túnel carpiano. Sin embargo, la evidencia sobre la mejoría del sueño tras la cirugía es escasa. Consideramos que la mejoría de la calidad del sueño está directamente relacionada con el procedimiento; nuestro objetivo primario fue comprobarlo. Como objetivo secundario se evaluó si los cambios en el sueño varían según factores constitucionales o de severidad del síndrome del túnel carpiano.
Materiales y Métodos: Serie prospectiva de 67 casos con síndrome del túnel carpiano e indicación de cirugía. Se dividieron grupos según edad, sexo y severidad del síndrome por electrodiagnóstico. Se evaluó la calidad del sueño con la Escala de Insomnio de Atenas antes de la cirugía y cuatro días después.
Resultados: El 74,62% de los pacientes tenía alteraciones de la calidad del sueño antes de la cirugía. Se comprobó una mejoría significativa en la calidad del sueño después de la operación, en todos los casos (p <0,05). No hubo diferencias significativas en los resultados entre los grupos.
Conclusiones: Clásicamente el éxito de la liberación del túnel carpiano se resume en los cambios sensitivo-motores. Sin embargo, no se apunta a la mejoría de la calidad del sueño, aunque sea el generador de la consulta. La descompresión del túnel carpiano mejora el sueño, independientemente de la edad, el sexo o la gravedad del cuadro.
Osteosíntesis en fracturas oblicuas o espiroideas largas de metacarpianos: comparación entre tratamiento con tornillos interfragmentarios solos y placa con tornillos
Authors: Ferrando Ángel , Belluschi Guillermo Fabián , Andreozzi Roberto , Perrone Juan Martín , Sarmiento Hugo , Petrucelli Eliana 
Published: October 2021

Objetivos: Comparar el tratamiento de pacientes con fracturas oblicuas o espiroideas largas de metacarpianos, mediante reducción abierta y fijación interna con tornillos interfragmentarios solos o placas y tornillos.
Materiales y Métodos: Se realizó un estudio retrospectivo comparativo entre 2 grupos de pacientes: uno con 24 pacientes tratados con tornillos interfragmentarios solos y otro con 17 pacientes tratados mediante osteosíntesis con placas y tornillos. En ambos, se utilizó un abordaje longitudinal dorsal, y se les indicó inmovilización posoperatoria con valva de yeso y rehabilitación con el mismo equipo de terapistas ocupacionales. Tras un seguimiento mínimo de 12 meses, se evaluaron los resultados con el puntaje DASH, la movilidad activa total, la distancia pulpejo-palma y la fuerza con dinamometría comparativa. Se consideró significativo un valor p <0,05.
Resultados: El tiempo promedio de seguimiento fue de 24.5 meses (rango 12-43). No se hallaron diferencias estadísticamente significativas en el puntaje DASH, la movilidad activa total, la distancia pulpejo-palma y la fuerza. El tiempo hasta el reingreso laboral fue inferior en el grupo tratado con placas y tornillos, aunque se registraron dos casos de retiro de material, sumado, en uno de ellos, a adherencia tendinosa (tenólisis).
Conclusiones: El tratamiento de pacientes con fracturas oblicuas o espiroideas largas de metacarpianos,mediante tornillos interfragmentarios solos o placas y tornillos logró resultados similares, se destaca el menor tiempo hasta la reincorporación laboral y la mayor cantidad de complicaciones con placas y tornillos.
Resultados del anclaje foveal artroscópico sin nudo del complejo del fibrocartílago triangular en lesiones Atzei 2/3
Authors: Sala Matías , Daroda Sergio 
Published: October 2021

Objetivo: Evaluar, en forma retrospectiva, la función y los resultados objetivos de los pacientes con lesión foveal del complejo del fibrocartílago triangular mediante anclaje óseo sin nudo artroscópico.
Materiales y Métodos: Se evaluó, en forma retrospectiva, a 12 pacientes con lesión foveal del complejo del fibrocartílago triangular Atzei 2/3 y un seguimiento promedio de 18 meses. Todas las lesiones se repararon con artroscopia mediante la guía de fibrocartílago y anclaje óseo sin nudo. Se evaluaron los rangos demovilidad y la fuerza de agarre con la escala de muñeca de la Clínica Mayo y el cuestionario DASH.
Resultados: Se obtuvieron mejoras en la prueba del dolor y la fuerza; el rango de movilidad promedio fue de 70° de extensión, 85° de flexión, 20° de desviación radial y 30° de desviación cubital. Los resultados según la escala de muñeca de la Clínica Mayo fueron excelentes en el 83% y buenos en el 17%, no hubo resultados malos. El puntaje promedio del cuestionario DASH fue 56 en el preoperatorio y 8 en el posoperatorio. El promedio de la fuerza comparativa contralateral fue del 70%.
Conclusiones: La reparación artroscópica de las lesiones Atzei 2/3 mediante anclaje óseo sin nudo logra buenos resultados, mejora los rangos de movilidad, recupera la estabilidad en todos los casos y la fuerza total o parcial.
Comparative study of a mixture of lignocaine and tetracaine cream and a mixture of lignocaine and prilocaine cream for pain relief during venepuncture in adult patients: A prospective, randomized, double blinded clinical trial
Authors: Mitra Anuradha , Alima Shanal , Ray Subrata , Roy Sourabh 
Published: October 2021

Pain sensation from venepuncture not only affects the patient physically and psychologically but also hinders the functioning of the health care provider. Lignocaine has been tested for its use in order to decrease intensity of pain during intravenous cannulation for long time. A newer drug tetracine with less systemic adverse effects has been tried recently. The analgesic efficacy of the eutectic mixture of lignocaine and prilocaine has been compared with mixture of Lignocaine and tetracaine when applied during venepuncture in adult patients under similar condition, as there is dearth of study with tetracaine. 90 patients randomly allocated in two groups and finally 80 patients analysed, after dropout each group having 40 patients. Group P- Topical application of Lignocaine & Prilocaine cream before venepuncture (n=40).Group T - Topical applicaton of Lignocaine & Tetracaine cream before venepuncture (n=40).The effectiveness of analgesia was determined by documenting the 10 point Visual Analogue Scale (VAS). Hemodynamic parameters were noted as secondary outcome. Demographic profile were comparable, mean pain score (VAS) of the patients of Group-P was significantly higher than that of the patients of Group-T (t=3.74; p&#60;0.001). Hemodynamic parameters were normal.Finding of the study corroborate that Lignocaine 7% & Tetracaine 7% cream (group T) offers better analgesia than Lignocaine 2.5% & Prilocaine 2.5% cream (group P) when applied under similar conditions 60 minutes before venepuncture in adult patients.
Effect of acupuncture at the EX-HN3 (Yintang) point on pre operative anxiety levels in patients undergoing surgery under general anaesthesia
Authors: Patil Manjunath C , Nadaf Mohammed Rizwan , Hanagandi Meghana 
Published: October 2021

Pre-operative anxiety is unpleasant state of psychological distress, uneasiness or tension. Increased pre-operative anxiety has correlation with increased post-operative pain, analgesic requirement and prolonged hospitalisation. Due to the associated side effects with pharmacological methods many non-pharmacological methods have been adopted. Acupuncture lacks side effects and is of relatively low cost. Hence we assess the pre-operative anxiety levels in patients undergoing surgical procedures by using acupuncture at EX-HN3 (Yintang) point.To assess the effect of acupuncture on pre-operative anxiety levels in patients undergoing surgery under general anaesthesia.A total of 240 patients undergoing surgery under general anaesthesia will be included in the study. Patients will be randomized in to two groups.Group A: Patients receiving acupuncture at EX-HN3 (Yintang) point.Group B: Patients not receiving acupuncture.At the pre-operative visit, on the day of surgery before and after acupuncture therapy, the patient will be assessed for anxiety scores using.The two groups were comparable demographically. Pre-operative anxiety levels as assessed by objective criteria (HR, BP, RR) shown significant reduction in intervention group(P&#60;0.001) compared to the control group(P=0.0556). The scores on STAI-S6 and Amsterdam scale were reduced in acupuncture Group A(P&#60;0.001) (P&#60;0.001) compared to control GroupB(P=0.47) (P=0.0095) respectively.Acupuncture at EX-HN3 (Yintang) point decreases pre operative anxiety levels effectively in patient undergoing surgery under general anaesthesia.
Anaesthetic challenges and difficult airway in a child with Poland’s syndrome
Authors: Gupta Aikta , Kalra Bhumika 
Published: October 2021

: Poland’s syndrome is an uncommon clinical disorder with a typical musculoskeletal deformity of thorax and ipsilateral upper limb with a variable spectrum of associated anomalies. Although patients of this musculoskeletal disorder have several features with potential anaesthetic risks including malignant hyperthermia, previous reports about anaesthetic management of these patients are limited.: We report the successful anaesthetic management of a child of Poland’s syndrome posted for surgical correction of club foot who had an anticipated difficult airway alongwith unilateral chest wall defect with paradoxical breathing and ipsilateral syndactyly and hence, posing challenges in the insertion of endotracheal tube, ventilatory management, regional anaesthesia and prevention of any risk of development of malignant hyperthermia.Paramount in the anaesthetic care of such patients is a thorough preoperative evaluation and a cautious intraoperative anaesthetic management. Avoidance of halogenated inhalational agents and depolarising neuromuscular blocking drugs, and use of controlled ventilation and regional anaesthetic techniques are recommended. The possibility of a compromised airway should always be kept in mind while anaesthetising these patients.
The effect of zinc lozenge on pain, oedema, and trismus after impacted third molar surgery: A prospective randomized, double-blinded, placebo-controlled study
Authors: Rajanna Tejashree , B R Hemalatha 
Published: October 2021

The postoperative sequelae after third molar surgery include pain, swelling and trismus, Zinc acts as anti-inflammatory agent, can promote wound healing, immune system modulation, tissue repair, and significant reduction in the use of analgesics for oral pain. This study was aimed to evaluate the efficacy of oral zinc lozenge given 30 min before surgery on reducing postoperative sequelae.s: We recruited 70 patients, randomly assigned to two groups: Zinc and Control group, groups received 40mg Zinc lozenge, placebo lozenge 30 min before surgery respectively and every 6h till 72h after surgery. Third molar extraction was performed under local anesthesia. After extraction, pain, swelling, and mouth opening in both groups observed till 72h.Preoperative and postoperative measurement of visual analog scale scores for pain, edema, interincisal opening, was analyzed using Student t test or ANOVA, Chi-square or Mann-Whit­ney U test was performed for non-parametric samples. P &#60; 0.05 was considered as statistically significant: The overall incidence of Pain in the Zinc group was 18% compared to 43% in the Control group (P = .003) Incidence of Pain, swelling, and mouth opening at different time intervals 6h, 24h, 48h and 72h were significantly (P &#62;0.05) better in Zinc group oral zinc lozenge administered 30 minutes preoperatively can significantly reduce complications like pain, swelling, and limited mouth opening after third molar extraction.
Fluid Histories of Middle Ordovician fault–fracture hydrothermal dolomite oil fields in the southern Michigan Basin, U.S.A.
Authors: Dunseith Regina F. , Gregg Jay M. , Grammer G. Michael 
Published: October 2021

ABSTRACTDolomitized fault–fracture structures in the Trenton and Black River formations (TBR) are the type example for “hydrothermal” petroleum reservoirs world-wide. However, fluid histories of these structures are only partially understood. Trenton and Black River reservoirs in the southern Michigan Basin are composed of fault-associated, vertical dolomite bodies that are highly fractured and brecciated. Open spaces are partially to completely filled by saddle dolomite and less frequently by calcite cement. Cathodoluminescence microstratigraphies of void-filling carbonate cements are not correlatable between oil fields. Fluid inclusion homogenization temperatures (Th) measured in carbonate cements indicate two fluid endmembers: a warm fluid (∼ 80° to 180° C) and a hot fluid (180° to ∼ 260° C). Increasing Th proximal to the underlying Proterozoic Mid-Michigan Rift (MMR) suggest that the hot fluids emanated from the rift area. Included fluids are saline (16.1–49.4 wt. % NaCl equivalent), and salinity likely is sourced from overlying Silurian Salina Group evaporites. First melting temperatures (Tfm), interpreted as eutectic temperatures (Te), of fluids range from –112° C to –50° C, indicating a complex Na–Ca–KCl brine; the expected composition of dissolved Salina salts. Lower Te proximal to the MMR suggest the rift as a source of additional complexing ions. C and O isotope values for carbonate cements are depleted with respect to δ18O (–6.59 to –12.46‰ VPDB) relative to Ordovician seawaters, and somewhat depleted with respect to δ13C (–1.22 to +1.18‰ VPDB). Equilibrium calculations from δ18O and Th values indicate that cement precipitating waters were highly evolved (+1.3 to +14.4‰ δ18O‰ VSMOW) compared to Ordovician and Silurian seawaters (–5.5‰ δ18O‰ VSMOW). Strontium isotope values indicate two fluid sources: Proterozoic basement and Late Silurian evaporites. Values of 87Sr/86Sr for cements in the Freedom, Napoleon, Reading, and Scipio fields (0.7086–0.7088) are influenced by warm water sourced from Silurian strata, and values for cements in the Albion, Branch County, and Northville fields (0.7091–0.7110) record continental basement signatures. Cement precipitating fluids in TBR oil fields likely have similar sources and timing. However, water–rock interactions along fault pathways modified source waters, giving each oil field a unique petrographic and geochemical signature. Fluid movement in TBR oil fields likely were initiated by reactivation of basement faulting during Silurian–Devonian tectonism.
The Impact of Plane Heterogeneity on Steam Flooding Development in Heavy Oil Reservoirs
Authors: Qu Yaguang , Ye YiPing , Ju Shichang , Liu Jiawen , Lei Meng 
Published: October 2021

Abstract
Steam flooding is proven to be an effective method to improve the development effect of heavy oil reservoirs. And steam flooding is the most common oil recovery technology for heavy oil reservoirs in China. However, because of the various reservoir physical properties, bring great challenges to successful steam flooding development. According to the previous research and development practice, we know that reservoir heterogeneity has a great influence on the development effect of water flooding. Due to the heterogeneity of reservoirs, the development of different injection-production well patterns will be affected. However, it is uncertain whether reservoir heterogeneity has an impact on steam flooding development effect. In order to clarify the above scientific issues, we take Xinjiang steam flooding oilfield as the research object to carry out relevant research. According to the reservoir distribution characteristics of Xinjiang Oilfield, three conceptual heterogeneity models representing permeability, thickness, and geometric plane heterogeneity are firstly proposed. Then, mathematic models with different plane heterogeneity of reservoir sand were built. Based on the mathematic model, initial conditions, boundary condition, and geological parameters of conceptual models, different steam flooding patterns were studied by applying numerical calculation. It is found that heterogeneity is an important geological factor affecting the development of steam flooding of heavy oil reservoir. And the results showed that cumulative oil production was different of different flood pattern at the same production condition. It can be concluded that the development effect of steam flooding of heavy reservoirs is strongly influenced by flood pattern. In order to improve development effectiveness of steam flooding of heavy oil reservoirs, flood pattern should be optimized. For each type of plane heterogeneity reservoir, a reasonable flood pattern was proposed. For plane heterogeneity of permeability, thickness, and geometry form, under the conditions of that as the producer was deployed in high permeability, thick, wide sand body and injector was deployed in low permeability, thin, narrow sand body, the recovery of steam flooding in heavy oil reservoir was better. Finally, how the three types of plane heterogeneity influence steam flooding of heavy reservoirs was discussed by adopting a sensitivity analysis method. The results show that the influence of permeability heterogeneity is the largest, thickness heterogeneity is the second, and geometric heterogeneity is the least. This conclusion can help us improve the development of this reservoir. And also, the findings of this study can help for better understanding of properly deployed well pattern and how to effective develop the heavy oil reservoirs of strong plane heterogeneity for other heavy oil reservoirs.
Permo-Carboniferous Glaciogenic Al Khlata Formation, Oman: A New Hypothesis for Origin of its Glaciation
Authors: Al-Belushi Juma D. , Glennie Kenneth W. , Williams Brian P.J. 
Published: October 2021

ABSTRACT
Al Khlata Formation is an oil-bearing reservoir in Oman. Its origin during the Late Palaeozoic Gondwana glaciation in the southern part of the Arabian Peninsula is demonstrated by the glaciogenic deposits of the formation in Oman. Outcrops of the Al Khlata Formation occur in a belt parallel to the Huqf fold axis, the best outcrops being found in the two wadis Al Khlata North and South. In the southern wadi, glacial deposits rest directly on dolomites of the Precambrian Khufai Formation showing northeast-southwest trending glacial striations.
Earlier workers proposed that the direction of ice flow was from the southwest to northeast. This is not accepted in this paper, where evidence is presented to support an ice-flow direction from northeast to southwest. Later fluvial flow towards the northeast possibly resulted from the collapse of the continental margin towards the new Proto-Arabian Sea and its subsequent subsidence.
We propose that the Early Permian glaciation in Oman resulted from crustal uplift just prior to the calving of a microcontinent along the northeast Arabia margin of Gondwana and the creation of Neo-Tethys. It is suggested that the triple-junction area where the Neo-Tethys and the Proto-Arabian Sea were later to meet, was a site of sufficient thermal uplift to become a center of mountain glaciation.
A New Bioevent Stratigraphy of Late Jurassic Arab-D Carbonates of Saudi Arabia
Authors: Hughes Geraint Wyn 
Published: October 2021

ABSTRACT
A series of fine-scale biofacies cycles are recognised by the application of semiquantitative micropalaeontological analysis of cores in eight wells from the reservoir carbonates from the Arab-D and upper Jubaila formations in Saudi Arabia. They are of Kimmeridgian - Tithonian age, and form the primary producing reservoir of the world’s largest single continuous reservoir located in the Ghawar field of Saudi Arabia. Three new composite biozones are identified that include a basal, deep marine Biozone D3 with fining-upwards cycles which equate, in part, with the Jubaila Formation. Biozone D2 was deposited in shallower conditions of the lower Arab-D carbonate, and Biozone D1 deposited in a very shallow marine environment of the upper Arab-D carbonate; both zones contain multiple coarsening-upwards cycles. Numerous additional bio-events, of potential subzonal value, are detected within these broad zones, and are considered to be related to discrete shoaling-upwards responses to transgressive episodes. The proposed scheme differs significantly from that erected for the Arab-D Formation in offshore Abu Dhabi.
Carbonates of the Arab-D member are concluded to be composed of a series of high frequency palaeobathymetric changes which were superimposed upon an extensive carbonate platform. Gradual shallowing of the platform resulted possibly from a reduction in subsidence rate, a fall in sea level, rise in carbonate productivity rate or a combination of these. The latest episode of very shallow marine carbonate sedimentation terminated with the deposition of the Arab-D evaporites.
The Role of Hydrogeology in Petroleum Development Oman
Authors: Lamki Mohamed S.S. Al , Terken Jos J.M. 
Published: October 2021

ABSTRACT
A hydrogeological study of the South Oman Salt basin in particular, and the Oman basin in general, was carried out by Petroleum Development Oman to support basin modelling. The study focused on major aquifer systems: the Tertiary Umm Er Radhuma aquifer and the Paleozoic Haima-Haushi aquifers. Temperature, water quality, radiocarbon age dating and potentiometric data was used to determine the flow, thermal and salinity regimes of the systems. The resulting models were then used to define areas where oil biodegradation due to meteoric water influx can be expected. A review of oil chemistry data confirmed that fields in these areas have the highest API gravity oil demonstrating that hydrogeological modelling can be beneficial in predicting oil quality for prospect evaluation. An additional benefit of this study was the development of a formation water resistivity model for enhancing log analysis techniques.