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Biomedical subjects

G P Lilius

Publications and source records attributed to G P Lilius.

3 recordsLinked to original sources

Clefts with associated anomalies and syndromes in Finland.

Probands with clefts born during an 11-year period, 1975-85, were evaluated; 1,586 probands were found of whom 345 (171 males and 174 females, 21.8%) had an associated anomaly. More male patients had cleft lips, with or without cleft palate (CL(P)) and more female patients had cleft palates (CP). The anomalies were subdivided according to anatomical site, and the biggest category was that of the extremities (29.7%) followed by cardiovascular (14.8%) and other facial anomalies (13.0%). The smallest category was chromosomal anomalies (2.7%) followed by miscellaneous anomalies (4.1%). A total of 560 malformations were found. Most anomalies per proband with clefts were found in the bilateral cleft lip and palate subgroup (mean 1.04). The lowest (0.14) was found in the subgroup with the least severe cleft deformity, the cleft lip with or without cleft alveolus. In the CP groups a similar trend was found with 0.21 in the subgroup of submucous cleft palate and 0.33 for the subgroup cleft palate, submucous clefts excluded. A total of 133 probands with 39 different recognised syndromes was delineated, 25 in the CL(P) group and 108 in the CP group (8.4% of the total 1,586 patients with clefts). There was no difference in parental age between probands with an associated anomaly and those with a solitary cleft. Anomalies were more than three times as frequent among probands with clefts as among the general population.

Abnormalities, Multiple↗

Birth weight and placental weight in cleft probands.

The mean birth weight of the 1,568 probands with clefts who were born in Finland between 1975 and 1985 was 3,346 g, which is lower than the mean of all live born babies in 1980 (3,541 g). The 345 who had an associated anomaly or syndrome had a mean birth weight of 3,027 g and placental weight of 538 g, compared with 3,435 g and 609 g, respectively, for those with solitary clefts. The more severe the cleft the lower the birth weight, but not the placental weight. The percentage of low birthweight (less than or equal to 2,500 g) infants was higher than in the general population (8.5% compared with 3.8%). The highest percentage of low birthweight infants was in the subgroup with bilateral cleft lip and palate (16.8%).

Birth Weight↗

Tissue expander injection dome leakage.

Injection dome leakage was found to be the cause for partial disappearance of the saline solution injected into some tissue expanders. When the injection domes of 22 consecutively removed tissue expanders were checked, we found that the average leakage pressure of these was 32 mmHg, with a range of 8 to 110 mmHg. When the patients were lying on their expanders, the weight of the corresponding body part caused intraluminal pressures of up to 90 mmHg in their expanders. Following removal of the expanders, the total leakage was calculated quantitatively and found to be maximally over 50 percent of the injected volume in some instances. The leakage flow through the injection dome in seven consecutively removed expanders was checked at pressures of 25, 50, and 75 mmHg over 30 minutes and was found to be slow. The possibility of injection dome leakage should be kept in mind, however, as a potential complication under unfavorable conditions. At the same time, we want to emphasize that in most instances tissue expanders function quite well and in predictable ways.

Humans↗