摘要:

Immediate intensive therapy is of major importance in the initial management of patients with dissecting aortic aneurysm. The Doppler ultrasound stethoscope is a noninvasive tool which may be used in the diagnosis and management of this disease. A case is presented in which this instrument was used to diagnose and follow the progress of a patient with acute aortic dissection. Further use of this device for similar disorders can be expected.

ISSN:0090-3493    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

Four resuscitator bags were studied to see if the delivered fractional oxygen percentage (FDO2) could be affected by manually controlling the inherent reexpansion rate of the bag so as to allow a greater entrainment of oxygen rather than air into the bag. Flow rates of oxygen into the bag were varied: 5, 10, 15, and 20 liter/min. For each flow rate, bag refill (reexpansion) times were varied: 1, 2, 4 sec. The results show that such a maneuver will effectively increase the FDO2of the bags at all flow rates tested—in certain instances to values greater than 0.8. This maneuver would be important in resuscitation situations where it is desirable to achieve better patient oxygenation.

ISSN:0090-3493    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

A new method using the flexible fiberoptic bronchoscope is described for the reexpansion of refractory unilateral lung or lobar atelectasis. The technique is well adapted for the critically ill ICU patient.

ISSN:0090-3493    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

As part of the development of a life support stretcher for transportation of critically ill patients, a portable ventilation system was developed. This system was used successfully during transportation of 6 of 11 patients who required ventilatory assistance and who were being considered for extracorporeal membrane oxygenator support. Immediately after transportation, PaCo2values were significantly lower (p < 0.05) in patients ventilated with this system, when compared to PaCo2values of the remaining 5 patients in whom ventilation was assisted with a 2-liter anesthesia bag (PaCo2= 58.7 ± 3.6). This system offers significant advantages over other presently manufactured systems, including low cost, portability, and efficiency in terms of oxygen utilization. (Manual ventilation is supplied so that no auxiliary electrical power supply is necessary.) Positive end-expiratory pressure (PEEP) can be varied by 2.5 cm H2O increments using a commercially available, weighted ball valve. In addition, it has been useful for transporting patients with acute respiratory failure within the hospital for therapeutic maneuvers or diagnostic studies.

ISSN:0090-3493    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

Using the standard MA-1 breathing circuit, the Cascade Heated Humidifier and tubing become rapidly contaminated with patient organisms. The rapidity with which this occurs seems to depend on the quantity and quality of patient secretions and dumping infected water from lazy loops into the Humidifier. Following modifications to the ventilator circuit which included: (1) closed system humidifier filling, (2) the addition of a small copper trap and drainage system to the inspired side of the breathing circuit, and (3) alteration of the heater, no contamination of the humidifier contents occurred for periods as long as 28 days. This trap was manufactured in our hospital using standard plumbing fixtures; a commercial model is available. This system is applicable to any volume ventilator using a heated reservoir humidifier.

ISSN:0090-3493    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

Radial artery function was studied in 114 consecutive patients by arteriography, Doppler ultrasound flow detection, and physical examination following prolonged (1–10 days) percutaneous cannulation with a single type of 20-gauge catheter. Cannulations lasting 1–3 days produced 11% arterial occlusion, whereas those lasting 4–10 days induced 29% incidence of occlusion (p< 0.05). In addition, a significantly higher incidence of cannula dysfunction (38% versus 18%,p< 0.05) and thrombus formation (0–3+ scale) was also observed in the group cannulated 4–10 days as compared with the group of shorter duration. The risk of vascular complications arising from percutaneous radial artery cannulation with 20-gauge catheters increases markedly after 3 days.

ISSN:0090-3493    

出版商:OVID    

年代:1978

数据来源: OVID

ISSN:0090-3493    

出版商:OVID    

年代:1978

数据来源: OVID

ISSN:0090-3493    

出版商:OVID    

年代:1978

数据来源: OVID