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排序方式: 共有95条查询结果,搜索用时 15 毫秒
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Evaluation of liver stiffness with magnetic resonance elastography in patients with constrictive pericarditis: Preliminary findings
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OP?SanjayEmail author P?Prashanth DI?Tauro 《Indian Journal of Thoracic and Cardiovascular Surgery》2003,19(3):141-144
Background Post thoractomy pain is a major source of concern in the postoperative period. The purpose of this study was to evaluate the
effectiveness of intraoperative temporary intercostal nerve blockade versus thoracic epidural analgesia for control of post
thoracotomy pain.
Methods 40 patients undergoing elective pulmonary resection through a postero lateral thoractomy were randomly allocated to receive
epidural analgesia using 0.25% bupivicaine (Group A, n=20) or temporary intercostal nerve blockade using 0.25% bupivicaine
(Group B, n=20). Adequacy of analgesia was assessed over a period of 24 hours using a visual analogue score and an observer
verbal ranking scale.
Results Pain scores were similar in both the groups for the first 4 hours after surgery. Thereafter, the pain scores were significantly
higher (p<0.05) in Group B as compared to Group A for the remainder of the observation period. There was significantly higher
(p<0.01) usage, of nonsteroidal analgesic consumption in Group B. No neurological complications were encountered, in both
the study groups.
Conclusion We conclude that in the early postoperative period there is no significant difference in pain relief in both the techniques
but there after, epidural analgesia significantly reduces post thoracotomy pain. 相似文献
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OP?SanjayEmail author VR?Kadam J?Menezes P?Prashanth DI?Tauro 《Indian Journal of Thoracic and Cardiovascular Surgery》2003,19(2):113-118
Background: Optimum pain relief following thoracotomy is essential for patient comfort and to reduce the incidence of postoperative pulmonary
complications.
Methods: A randomized clinical trial was conducted on 90 patients scheduled for pulmonary resection. The patients were randomly divided
into three groups. Group 1 received 0.125% bupivicaine with fentanyl 10μg.ml−1, Group 2 received 0.25% bupivicaine with fentanyl 10μg.ml−1 and Group 3 received only fentanyl 10μg.ml−1 in a calculated dose as a continuous thoracic epidural infusion. Adequacy of anglesia was assessed at rest and during movement
over 24 hours. Analgesic efficacy was assessed using a visual analogue score and an observer verbal ranking scale.
Results: Pain scores were significantly higher in Group 3 during the assessment period. (p<0.01) as compared to the other groups.
The use of intraoperative vasopressors was significantly higher (p<0.05) in Group 2 as compared to the other groups. No neurological
complications were encountered in any of the study groups.
Conclusion: We conclude that in the early postoperative period, the use of 0.125% bupivicaine improves fentanyl epidural analgesia in
patients undergoing lung resection. 相似文献
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DS Chadha A Swamy SK Malani RK Ganjoo OP Mathew 《Medical Journal Armed Forces India》2009,65(3):203-207
Background
Obesity is associated with increased cardiovascular morbidity and mortality. A direct effect of isolated obesity on cardiac function is not well established. The study was designed to determine the direct effect of various grades of isolated obesity on echocardiographic indices of systolic and diastolic left ventricular function.Methods
Fifty one obese and 25 normal weight, serving personnel without any other pathological condition were studied. Group I (n=25) consisted of subjects with normal weight and body mass index (BMI <25kg/m2), Group II (n=34) of overweight subjects (BMI 25-29.9 kg/m2) and Group III (n=17) of obese subjects (BMI >30 kg/m2). Echocardiographic indices of systolic and diastolic function were obtained and dysfunction was assumed when at least two values differed by ≥ 2 SD from the normal weight group.Result
Ejection fraction, fractional shortening were increased (p<0.05) in Group II and III. Left ventricular dimensions were increased (p< 0.001) but relative wall thickness was unchanged. Systolic dysfunction was not observed in any of the obese patients. The mitral valve pressure half time (p< 0.01), left atrial diameter (p < 0.01) and the deceleration time were increased (p< 0.01) in obese subjects, while other diastolic variables were unchanged. No difference were found between obesity subgroups. Subclinical diastolic dysfunction was more prevalent among obese subjects. BMI correlated significantly with indices of left ventricular systolic and diastolic function.Conclusion
Subclinical left ventricular diastolic dysfunction was noted in all grades of obesity which correlates with BMI.Key Words: Obesity, Systolic function, Diastolic function, Echocardiography 相似文献9.
Noninvasive differentiation of uric acid versus non-uric acid kidney stones using dual-energy CT 总被引:1,自引:0,他引:1
Primak AN Fletcher JG Vrtiska TJ Dzyubak OP Lieske JC Jackson ME Williams JC McCollough CH 《Academic radiology》2007,14(12):1441-1447
RATIONALE AND OBJECTIVES: To determine the accuracy and sensitivity for dual-energy computed tomography (DECT) discrimination of uric acid (UA) stones from other (non-UA) renal stones in a commercially implemented product. MATERIALS AND METHODS: Forty human renal stones comprising uric acid (n=16), hydroxyapatite (n=8), calcium oxalate (n=8), and cystine (n=8) were inserted in four porcine kidneys (10 each) and placed inside a 32-cm water tank anterior to a cadaver spine. Spiral dual-energy scans were obtained on a dual-source, 64-slice computed tomography (CT) system using a clinical protocol and automatic exposure control. Scanning was performed at two different collimations (0.6 mm and 1.2 mm) and within three phantom sizes (medium, large, and extra large) resulting in a total of six image datasets. These datasets were analyzed using the dual-energy software tool available on the CT system for both accuracy (number of stones correctly classified as either UA or non-UA) and sensitivity (for UA stones). Stone characterization was correlated with micro-CT. RESULTS: For the medium and large phantom sizes, the DECT technique demonstrated 100% accuracy (40/40), regardless of collimation. For the extra large phantom size and the 0.6-mm collimation (resulting in the noisiest dataset), three (two cystine and one small UA) stones could not be classified (93% accuracy and 94% sensitivity). For the extra large phantom size and the 1.2-mm collimation, the dual-energy tool failed to identify two small UA stones (95% accuracy and 88% sensitivity). CONCLUSIONS: In an anthropomorphic phantom model, dual-energy CT can accurately discriminate uric acid stones from other stone types. 相似文献
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