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J Hulka

Publications and source records attributed to J Hulka.

14 recordsLinked to original sources
PubMed2003

The weekly measurement deviations of indoor radon concentration from the annual arithmetic mean.

The difference between weekly measurements and the annual arithmetic mean of radon indoor concentration CRn,Indoor was studied in the Czech Republic. The deviations were analysed for 1537 weekly measurements which were consecutively obtained in 29 rooms over a period of 1 year and the annual arithmetic mean was calculated for each particular room. The relationship of the deviations to three meteorological parameters (i.e. outside temperature, atmospheric pressure, and weekly rainfall) and to the sequential number of a calendar week was studied. The effect of atmospheric pressure and weekly rainfall was not significant. The deviation between a weekly measurement and the annual arithmetic mean depended significantly on outside weekly average temperatures. If the average outside weekly temperature was below 10 degrees C, the radon concentration was systematically higher than that of the annual arithmetic mean. The deviation variability was lower up to a temperature of 10 degrees C. If the weekly average outdoor temperature was higher than 10 degrees C, the uncertainty of a weekly measurement of radon concentration was also higher.

Air Pollutants, Radioactive↗
PubMed1996

Cervical cancer screening in Bali: a public health issue.

Cervical cancer is the most common cancer in women in developing countries. Regarding cervical cancer in Bali, we sought to determine the incidence, to evaluate existing preventive and screening programs, to identify the population being screened, and to examine the methods of testing. The records of the Udayana Teaching Hospital pathology laboratory and Cancer Registry were reviewed, retrospectively. The incidence of cervical cancer in Bali is 7/100,000. There has already been a substantial increase in the number of Papanicolaou tests (PT) from 767 in 1990 to 1,355 in 1992. In 63% of these tests the results were Class II, indicating a need for attention to infection. Cervical intraepithelial neoplasia has a statistically significant increase with age. The number of PT performed peaks in the 35-44 year age group, with a sharp decline thereafter. Fifty-four percent of PT are performed in the capital city, which has only 20% of the female population. Bali Hindu women make up 94% of the female population, but receive only 81% of PT, while Muslim women make up 5% of the population and receive 12% of PT. Seventy-eight percent of PT contain no endocervical cells. There has already been a promising increase in the number of PT performed in Bali. Public health promotion efforts as well as outreach programs should be expanded, perhaps using the Banjar system, to reach older and rural women. Collectors of Pap smears should be instructed on the importance of endocervical sampling.

Adolescent↗
PubMed1995

Operative laparoscopy: American Association of Gynecologic Laparoscopists' 1993 membership survey.

The American Association of Gynecologic Laparoscopists' 1993 membership survey on operative laparoscopy had 825 respondents reporting 45,042 procedures. The most frequent indication was pelvic pain (56% of procedures), followed by infertility (38%). There were 7382 laparoscopically assisted hysterectomies reported. Compared with 1988 and 1991 survey data, the rates of unintended laparotomy, hemorrhage, and bowel or urinary tract injury increased, but the overall complication and death rates remained essentially unchanged.

Female↗
PubMed1993

Effects of carbon dioxide-saturated normal saline and Ringer's lactate on postsurgical adhesion formation in the rabbit.

OBJECTIVE: To evaluate the effect of combining carbon dioxide gas (CO2) with normal saline versus CO2 with lactated Ringer's solution on adhesion formation in the rabbit model. METHODS: Sixty New Zealand white rabbits underwent surgery based on a proven experimental adhesion model. Following abdominal closure, the animals were randomly assigned to three groups: Group 1 underwent abdominal CO2 insufflation only; group 2 underwent abdominal irrigation with CO2-saturated normal saline; group 3 underwent abdominal irrigation with CO2-saturated lactated Ringer's solution. Three weeks later, the rabbits were sacrificed and the adhesions were scored in a blinded fashion based on the extent, type, and tenacity, with a maximum possible score of 11. RESULTS: The mean (+/- standard deviation) adhesion scores were 7.75 +/- 2.82 in group 1, 7.85 +/- 2.58 in group 2, and 4.75 +/- 2.95 in group 3. There was no difference in severity of adhesions between groups 1 and 2. However, the mean adhesion score was significantly lower in group 3 (lactated Ringer's with CO2) than in either group 1 (CO2) or group 2 (normal saline with CO2) (P = .004 and P = .002, respectively). CONCLUSION: It appears that when CO2 is the insufflating gas, lactated Ringer's solution has a protective effect against adhesion formation in the rabbit model.

Animals↗
PubMed1989

Pulse oximetry: a review of the theory, accuracy, and clinical applications.

Pulse oximetry has emerged as a clinical tool in anesthesia and newborn monitoring within the last 7 years as a result of recent technological and theoretical advances. Oximeters measure the different absorption spectra of oxygenated and deoxygenated hemoglobin. Electronic measures of oxygenation at the peak of the pulse allow computation and display of oxygen saturation of the arterial blood almost instantly. Correlation coefficients between pulse oximetry and direct blood oxygen saturation measurement range from 0.77-0.99 when oxygen saturation is greater than 60%. The method is noninvasive (a clip or tape on a finger), simple to operate, and adaptable to various patient populations. Pulse oximetry monitors continuously and instantaneously, is responsive to change, and is accurate. Factors adversely affecting the accuracy of pulse oximeter output include transducer movement, peripheral vasoconstriction, a nonpulsating vascular bed, hypotension, anemia, changes in systemic vascular resistance, hypothermia, presence of intravascular dyes, and nail polish. Pulse oximetry has been used to monitor oxygen saturation intraoperatively in the adult and neonatal intensive care units and to monitor pregnant patients and their infants at delivery. Once the advantages and limitations of pulse oximetry are recognized, this monitoring technique can play an important role in the care of patients with cardiovascular and respiratory compromise.

Female↗
PubMed1978

Luteinized unruptured follicle syndrome: a subtle cause of infertility.

A clinical description of luteinized unruptured follicles is presented. This abnormality in ovulation is characterized by normal endocrinologic presumptive signs of ovulation: biphasic basal body temperature curves, secretory endometrium, and laboratory evidence of progesterone production by elevated urinary pregnanediol or plasma progesterone levels. In a group of 102 such infertile women, laparoscopy performed 3 to 5 days after apparent ovulation revealed the absence of a corpus hemorrhagicum in 30 women, and the absence of a sigma on a corpus hemorrhagicum in an additional 32 women. These findings were evidence that a follicle had not ruptured and an ovum had not escaped. Of 28 patients undergoing follicular stimulation with clomiphene citrate or human menopausal gonadotropin after this diagnosis, 15 conceived.

Female↗