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J Cervantes

Publications and source records attributed to J Cervantes.

13 recordsLinked to original sources

[Laparoscopic cholecystectomy in pediatrics. A report of the first case in the Mexican literature].

The authors present the case of a 9.8-year-old girl with 5 a month history of epigastric pain which was due to gallstones as demonstrated by ultrasound. After an extensive work-up failed to reveal associated hematologic problems, she was successfully treated by laparoscopic cholecystectomy, resulting in complete recovery, hospitalization of 22 hours and return to school three days after major surgery. We could not find references of laparoscopic cholecystectomy in the pediatric age group in the Mexican literature and only 3 in English language publications. In cases of cholelithiasis without associated diseases in children, the operation of choice should be laparoscopic cholecystectomy.

Child

Measurement of gastric emptying rate in humans by real-time ultrasound.

Simultaneous studies of gastric emptying by ultrasound and scintigraphy were performed in 14 subjects to assess the use of ultrasound for the measurement of gastric emptying rate. The presence of air in the stomach prevented the acquisition of gastric emptying data by ultrasound in 3 of the 14 subjects. In the remaining 11 subjects there was no significant difference between values for the half-time (t1/2) of gastric emptying obtained by scintigraphy [for anterior imaging, mean t1/2 = 20.9 +/- 9.9 min (+/- SD); for anterior and posterior imaging, geometric mean t1/2 = 21.1 +/- 10.5 min (+/- SD)] compared with those derived by ultrasound [mean t1/2 = 20.2 +/- 10.0 min (+/- SD), p greater than 0.05 for each comparison]. A significant correlation between the t1/2 of gastric emptying derived by scintigraphy (anterior scanning and geometric mean of counts obtained by anterior and posterior scanning) and the t1/2 measured by ultrasound was obtained (r2 = 0.7, 0.69, respectively). These results imply that ultrasound can be used for the valid assessment of the gastric emptying rate in humans.

Adult

Ultrasound diagnosis of rectus sheath hematoma.

The authors present three patients with rectus sheath hematoma who were diagnosed with ultrasound and successfully operated upon. The importance of a correct preoperative diagnosis is stressed to avoid an unnecessary laparotomy. Ultrasound helps to localize the presence of an extra-abdominal mass located between the aponeurotic sheaths of the rectus muscle. Surgery is the best treatment since it is possible to evacuate the large hematoma, and at the same time it affords an opportunity to ligate the bleeding vessels, usually the epigastrics. No advantage is seen using conservative treatment, as several weeks may be necessary before complete resolution, while the patient is suffering considerable pain and discomfort.

Abdominal Muscles

Acute thrombosis of abdominal aortic aneurysm. An uncommon entity.

Acute thrombosis of an abdominal aneurysm is a catastrophic complication which is little known. It presents as a sudden event, characteristically with lower abdominal pain, signs of profound lower extremity ischemia and pronounced bilateral lower extremity neuromuscular dysfunction. While the mechanism of thrombosis is not understood and is unpredictable, it is certain that the condition is rapidly fatal if uncorrected. The mortality of acute thrombosis is very high, similar to rupture, which is the most common complication of an abdominal aortic aneurysm. Diagnosis is not difficult, and must be followed by prompt surgical restoration of circulation of the lower half of the body, if death is to be prevented. This can be accomplished by aneurysm resection and graft replacement. Retrograde transfemoral thromboembolectomy should not be done. This report describes two successfully operated cases which dramatize the symptomatology of the condition and show the gratifying results of immediate surgical intervention. Only 30 cases (15 fatal) have been reported in the literature.

Acute Disease

[Fat embolism].

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Adolescent

[Ischemic colitis].

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Aged