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F G Simpson  G P Hall  J Kelleher    M S Losowsky 《Gut》1979,20(7):581-584
Thirty-seven patients undergoing routine investigation for malabsorption were given radio-opaque pellets (ROP) which were compared with polyethylene glycol and chromic oxide as continuous faecal markers. Percentage recovery of all markers showed a wide range. The recovery of all markers was very similar, and radio-opaque pellet-corrected daily faecal fat correlated very closely with PEG-and chromic oxide-corrected fat results. Estimation of ROP is precise, simple, and minimises faecal handling. ROP are suitable for routine use in faecal fat studies and have advantages over markers used at present.  相似文献   

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We describe 3 patients with rectus sheath hematoma presenting to the emergency department. Prompt consideration of this uncommon cause of abdominal pain may prevent more expensive and invasive diagnostic tests and, in some cases, unnecessary hospitalization and laparotomy.  相似文献   

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The accuracy and fidelity of a new transducer-tipped catheter (Camino Laboratories) was compared in 10 closed chest anesthetized dogs with standard Millar catheters. Simultaneous Camino and Millar measurements of left ventricular pressures and its first derivative (dp/dt) were recorded in control, after Isoprenaline infusion and during left anterior descending coronary artery balloon occlusion, to vary the pressures for comparison. Linear regression analysis comparing the Camino and Millar systems yielded a good correlation, and one way analysis of variance showed no difference between the two catheter readings, thus revealing that the recently developed Camino disposable transducer-tipped catheter provides accurate measurements of left ventricular pressure and its first derivative.  相似文献   

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Some patients experience discomfort at sheath removal during transradial procedures. We hypothesized that the use of a hydrophilic-coated sheath (HCS) would reduce the traction force needed at withdrawal and therefore the pain experienced by patients. Patients referred for coronary intervention were randomized to undergo transradial procedure with the use of HCS or with nonhydrophilic sheath (NHS). At removal of the sheath, peak traction force was recorded using an electronic traction gauge and patients were asked to quantify their pain. A total of 90 patients participated in the study. The mean +/- SD peak traction force at sheath removal was 265 +/- 167 g and 865 +/- 318 g in the HCS and NHS groups, respectively (69% reduction; P < 0.001). Mean maximal pain score was 0.6 +/- 1.2 and 4.8 +/- 2.9 in the HCS and NHS groups, respectively (88% reduction; P < 0.0001). Use of HCS for transradial procedures reduces considerably the traction force needed for sheath removal as well as pain experienced by patients when compared to NHS.  相似文献   

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During transcatheter closure of an atrial septal defect with insufficient aortic rim, a standard delivery sheath was modified by cutting a bevel at the distal tip to improve device orientation. The sheath split longitudinally when attempting to recapture the closure device. Troubleshooting allowed a device to be implanted successfully. Pitfalls regarding our sheath modification and methods to overcome prolapse of the left atrial disk into the right atrium are discussed.  相似文献   

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A transducer tipped catheter and simple recording system were used for the continuous measurement of ambulatory pulmonary artery pressure. The pulmonary artery pressure was recorded on a miniaturised tape recorder and replayed via an optical writer. Pulmonary arterial systolic and diastolic pressures can be analysed on a beat to beat basis. Continuous ambulatory monitoring was performed for a total 288 hours in 13 patients who were undergoing routine investigation for coronary artery disease. There was less than 1% zero drift and 0.25% linearity error per full scale pressure. The frequency response of the entire system was flat to 8 Hz with a linear phase delay. The transducer tipped catheter and a conventional fluid-filled system were used to measure left ventricular and pulmonary artery end diastolic pressures in eight patients. The correlation between the results obtained by the two methods was excellent. This method could be used at any centre equipped for ambulatory electrocardiographic monitoring.  相似文献   

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James RF 《Lancet》2005,365(9473):1824
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《Lancet》1959,1(7074):665-667
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Rectus sheath hematoma (RSH) is a known complication of anticoagulation therapy and a source of potential morbidity and mortality. Early diagnosis and appropriate treatment may help to prevent complications including hemodynamic instability, the abdominal compartment syndrome or multiorgan dysfunction. Although the diagnosis can be made clinically, it can be confirmed with computed tomography of the abdomen. Most patients can be managed conservatively; however, it is often necessary to suspend anticoagulation in the acute setting. Rectus sheath hematoma is not a contraindication to resuming anticoagulation once the hematoma has been adequately managed and the patient has returned to a stable clinical baseline.  相似文献   

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