ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

High-frequency electrocardiograms (HF-ECG) were recorded from rabbits before and after delivery of blunt, nonpenetrating thoracic trauma. The conventional electrocardiographic record showed transient changes following the blow; the HF-ECG showed distinct notching and slurring in the QRS complex in most cases, which persisted throughout the course of the experiment. At autopsy, a contusive lesion of the right ventricle was always found.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

One hundred four cases of blunt renal trauma have been reviewed and analyzed, yielding 71 minor, 13 major, and 20 intermediate-degree injuries. Of the latter group, urinary extravasation (60%) and parenchymal laceration (100%) appear to be the dominant features exhibited by conventional radiographic maneuvers, neither of which suggest a de novo need for operation or interference with spontaneous resolution. Nephrectomy (9) and heminephrectomy (2) may often have been performed unnecessarily in this group, since nine such patients managed either nonoperatively (7), or undergoing negligible operative procedures (2) responded with total functional and anatomic restoration. Arteriography is endorsed as an important contributor of information encouraging confidence in the conservative management of such cases.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Femoral fracture, unilateral and bilateral, impaired the healing of dorsal skin incisions and formation of reparative granulation tissue in subcutaneously implanted polyvinyl alcohol sponges judged histologically and by breaking strengths and hydroxyproline contents, respectively, 1 week after injury in pair-fed rats kept at 22°C. When rats were transferred to a room at 30° immediately after skin incision and sponge implants, with or without unilateral fracture, no differences in healing were observed between the two groups. Rats with skin incision, sponge implants, and either femoral fracture or sham-fracture excreted more urinary nitrogen than preoperatively when kept at 22°. Counterpart groups transferred to a 30° room right after operation excreted less urinary nitrogen than preoperatively, but because of lower food intakes postoperatively, the ratio of urinary nitrogen to food intake nitrogen was increased. With equivalent food intakes, pair-fed rats with fracture kept at 22° postoperatively lost more weight and exereted more urinary nitrogen than corresponding rats transferred to a 30° room.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Testosterone exerted a sparing effect on nitrogen urinary excretion and balance in pair-fed rats with femoral fracture, dorsal skin incision, and subcutaneously implanted polyvinyl alcohol sponges, whether kept at 22 or 30°C for 1 week postoperatively. No difference in 14− or 21-day wounds was observed among rats with dorsal skin incision and sponge implants, kept at 22°, and starting immediately after operation, given daily IM injections of either 3 mg or 1 mg testosterone propionate in peanut oil, compared with similarly wounded rats given saline or peanut oil injections. Wound healing was impaired in rats kept at 22° for 7 days following a skin incision, sponge implants, and femoral fracture. Testosterone administration begun immediately after operation, 2 mg/day subcutaneously, did not improve the impaired healing of pair-fed rats with fracture compared with rats without fracture. There was somewhat less collagen and a higher ratio of ground substance to collagen in the skin incisions and sponge granulomas of the testosterone group. No differences in wound healing were observed in pair-fed rats moved to a 30° room postoperatively, among rats with or without fracture, nor among rats with femoral fracture given testosterone or saline subcutaneously.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Exposure to urographic contrast material, meglumine diatrizoate, in a previously ischemic kidney was investigated for its effect on renal function. Eleven mongrel dogs, 19.8–32.7 kg in weight, having the left kidney ischemic for 90 minutes were given either 4 cc/kg meglumine diatrizoate or control, Ringer's lactate solution. The effect on creatinine clearance of the left kidney was determined acutely and at 72 hours. Statistical analysis of the data reveals no deleterious effect from exposure to meglumine diatrizoate over and above the effect of the ischemic episode. There was no statistically significant effect on recovery of renal function in this animal model.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Thirty consecutive patients with penetrating wounds to the heart underwent surgery at the Medical College of Virginia Hospital. Classical signs of tamponade usually were not present. A precordial wound, positive pericardiocentesis, and shock were the most common indications of cardiac injury. Immediate operation is recommended for all penetrating injuries; pericardiocentesis is employed only for a diagnostic tool and for emergency relief of tamponade.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

The treatment of a moderately large burn usually requires blood and its products to restore circulating blood volume, achieve metabolic stabilization, and promote wound healing. This case study demonstrates the remarkable metabolic response to injury in a patient refusing blood products administration. Specific management considerations are discussed.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

A one-stage technique is described for repair and debridement of compound, comminuted depressed skull fractures using methyl methacrylate, which appears to be simple, effective, and safe, provided that the paranasal sinuses are not involved. If so, a two-stage debridement and repair are recommended. In the series reported, of 25 patients, only one developed infection, which was successfully treated with further operative repair and antibiotics.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

A patient with subcapsular rupture of the spleen in association with indirect torsion trauma is reported. The spleen was surrounded by bands and adherent organs. The injury was considered to have been caused by a stretched band. In patients with hemoperitoneum, celiac angiography is advocated for diagnosis when immediate surgery is not indicated.

ISSN:0022-5282    

出版商:OVID    

年代:1977

数据来源: OVID