In six healthy subjects cineradiographic studies during panting against a closed shutter showed widening and narrowing of the whole extrathoracic airways. At the epiglottic level, the mean lateral maximum diameter was 121% of the minimum diameter for an applied pressure of 11.4 cm H2O and 152% for 28.4 cm H2O, while posteroanterior diameter changes were 148% for 12.3 cm H2O and 182% for 28.2 cm H2O, respectively. There was a significant correlation between anteroposterior diameter changes and mouth pressure (Pm) swings (P less than 0.05). In 6 cadavers, the compliance of extrathoracic airways (isolated from the lower respiratory tract by an inflated balloon in the upper trachea) was 1.5 ml X cm H2O-1 after adding 30 ml of air, and 1 ml X cm H2O-1 after removing 30 ml of air. Flow rate in and out the extrathoracic airways averaged 0.089 and 0.163 L X sec-1 for swings in Pm of 9.5 and 18.5 cm H2O, respectively. There was a significant correlation (P less than 0.05) between flow rate and delta Pm. For a given delta Pm, flow was higher in those cadavers with more compliant extrathoracic airways. We conclude that extrathoracic airways change their volume during panting, and that these volume changes, as well as the internal flow rate thus created, depend on the Pm swings.

Adult↗

PubMed1980

[Colonic complications of pancreatitis. A report on 39 cases (author's transl)].

Colonic complications of pancreatitis are not infrequent occurrences, as illustrated by the fact that the authors have personally treated 39 such cases. Lesions are found in the colon at sites which correspond perfectly to diffusion of pancreatic necrotic lesions along mesenteric pathways as described by Meyers. They occur mainly in the left colic flexure (17 cases) and transverse colon (10 cases) but may affect the ascending (6 cases) and descending (4 cases) colon by diffusion of the pancreatitis into the anterior extrarenal space. These topographical characteristics, associated with the extrinsic and inflammatory nature of the lesions, produce a very specific and typical radiological syndrome which should assist diagnosis.

Adult↗

PubMed1979

[Respiratory tuberculosis with normal thoracic radiography].

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Aged↗

PubMed1978

[Plain film findings and contrast enema in colon ischemia (author's transl)].

We describe our observations on abdominal roentgenograms without preparation in two cases of segmental colon infarct and eighteen cases of ischemic colitis. In both infarct cases a colic ileus was noted. In one patient the infarcted loop appeared as gas contrasted. In the ischemic cases there were, in addition to the bowel ileus: a colectasis in two patients, a collapsed segment in thirteen and a gas-filled segment in three. When associated to a significant clinical situation the two latter images have some diagnostic value. In the majority of patients, the contrast enema made possible a diagnosis of ischemic colitis; in three it shaved the sigmoid narrowing responsible for the ischemia.

Adult↗

PubMed1978