SEARCH · PubMed Health

Results for “Catheterization”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 307 records · Page 17Linked to original sources

PubMed2000

A simplified technique for non-surgical catheterization of the vena cava cranialis in pigs and an evaluation of the method.

Restraint and venepuncture affect blood parameters and are stressful for pigs. Therefore, when experiments require frequent blood sampling, catheterization is the best option, both ethically and scientifically. A simplified non-surgical method for catheterization of the vena cava cranialis in sows is described. The vena cava is catheterized via the vena jugularis externa, which is punctured while the sow is restrained by nose snaring. The procedure can be carried out by two experimenters in 5 min, it requires little equipment and can be performed under farm or very simple experimental conditions. Results from 89 catheterizations are reported. Seventy-three of the catheters remained functional for 5 days or more. There was a tendency for a higher success rate in dry sows than in highly pregnant sows. The only behavioural effect observed after catheterization was a short-lasting increase in motivation for wallowing in some sows. No illness that could be attributed to the catheterization occurred.

Animals↗

PubMed1988

Bedside catheterization of the pulmonary artery: risks compared with benefits.

The decision to use bedside pulmonary artery catheterization for managing patients must involve a careful assessment of the risks compared to the benefits. Complications can be minimized by following specific guidelines for catheter insertion and maintenance. Pulmonary artery catheterization has been shown to be more accurate than clinical assessment alone in critically ill patients for determining the cause of shock (hypovolemic, cardiogenic, or septic) or for assessing the cause of severe pulmonary edema (cardiogenic or noncardiogenic). The diagnosis of cardiac failure in medical or surgical patients with invasive hemodynamic monitoring provides physiologic data that guide pharmacologic treatment that may favorably influence preload and afterload in the failing or ischemic heart. Managing hemodynamics with the aid of pulmonary artery catheterization in patients with the adult respiratory distress syndrome has received considerable attention, but a contribution to better patient outcome has not been established. Similarly, although clinical management of hemodynamic instability in septic shock is facilitated by pulmonary artery catheterization, the mortality remains very high because of the lack of specific therapy to reverse the sepsis syndrome. Adequate volume resuscitation and improved tissue oxygenation are universally accepted goals, but specific hemodynamic endpoints are controversial and direct measurements of tissue oxygenation are not possible. Prospective studies to define the clinical value of pulmonary artery catheterization are needed, but must be designed very carefully in order to identify unequivocally the effect of pulmonary artery catheterization on outcome in critically ill patients.

Catheterization, Swan-Ganz↗

PubMed1999

Cardiac catheterization in Germany. Diffusion and utilization from 1984 to 1996.

OBJECTIVE: To describe the diffusion of cardiac catheterization technologies and time trends of their use according to setting and geographic region in Germany during a 13-year period. It is hypothesized that the cardiac catheterization technology has matured from an experimental state to a broadly accepted technology. METHODS: Data come from the annual survey of the German Society for Cardiovascular Research. All German cardiac catheterization units are requested to provide data on volume and type of catheterization procedures. Data are available from 1984 to 1996. Number and type of procedure, type of unit, diagnoses, and complications are all recorded. The overall response rate is 90%, on average. RESULTS: The total number of catheterization units was 324 in 1996, or an average of 3.69 units per 1 million population. In 1996, all of the East German Länder and districts were below average. Utilization of cardiac catheterization procedures increased exponentially during the study period. The number of angiographies rose from about 45,000 in 1984 to more than 450,000 in 1996; the number of angioplasties increased almost by a factor of 50 to 125,000 procedures in 1996. Inverse correlations between the rates per million population of either coronary angiographies or PTCAs and mortality rates from ischemic heart disease were observed at the level of the German Länder. CONCLUSION: Further studies taking patient characteristics, long-term outcomes, and other factors in account are necessary to clarify the large geographic variations and the negative relationship between utilization rates and coronary heart disease mortality found in this study.

Adult↗

PubMed2000

Clean intermittent catheterization in Saudi children. Suggestion for a common protocol.

In the last thirty years, clean intermittent catheterization of urinary bladder has proven to be one of the most important advances in Urology. Clean intermittent catheterizationis already utilized in the Kingdom of Saudi Arabia, but the materials and the methods in use are not always the most appropriate. The acceptance of the long-term treatment with clean intermittent catheterization among Saudi families does not seem to be adequate. Moreover, the knowledge and the agreement about clean intermittent catheterization by Saudi Medical Community, and even among Urologists, does not seem to be satisfactory everywhere. We analyzed many different catheters and their cost. We prepared a list of suggestions about clean intermittent catheterization materials and methods. Following this protocol, the majority of the parents of our patients, properly informed and trained, do now understand very well the aims and the advantages of the method. Consequently we realized the problems are not necessarily coming from the patients and their families, but eventually from the inadequacy of our educational and supportive system. In this review, we present our common protocol for clean intermittent catheterization in children, hoping to avoid some mistakes and improve the quality of life of these patients. As cultural background, on the base of our own experience, we reanalyze the principles, indications, results, contraindications, and complications of clean intermittent catheterization in children.

Adolescent↗

PubMed1992

Emergency central venous catheterization during resuscitation of trauma patients.

Central venous catheterization during resuscitation of trauma patients remains controversial. Such catheterizations performed at the UMDNJ-Robert Wood Johnson Medical School at Camden Cooper Hospital/University Medical Center (Camden, NJ) trauma center for the period January 1, 1988 to December 31, 1989 were retrospectively reviewed. Patients with underlying hemothorax, pneumothorax, or resuscitative thoracotomy were excluded. There were 269 catheters inserted using the Seldinger technique. Catheters were placed via the internal jugular or subclavian veins by attending traumatologists or emergency medicine and surgical house staff under direct attending supervision. Of 238 patients ages 6 to 90 years, 156 were men. Mean Trauma Score and Injury Severity Score were 9 and 30, respectively. Patients were divided into two groups: patients undergoing cardiopulmonary resuscitation or in shock (systolic bp less than 90) during resuscitation (Group 1: n - 161); and patients not in shock (Group 2: n - 77). Thirty patients (Group 1a) expired in the resuscitation area. The remainder (Group 1b) with 150 catheterizations had 12 complications (8%): pneumothorax (8), hemothorax (1), and malposition (3). Group 2, with 80 catheterizations, had 6 complications (7.5%): pneumothorax (4), hematoma (1), and malposition (1). The complication rate for patients surviving the resuscitation (230 catheterizations) was 7.8 per cent. There were no catheter-related deaths. In conclusion, emergency central venous catheterization during resuscitation of trauma patients carries a relatively low risk of serious complications when performed by experienced physicians.

Adolescent↗

PubMed2005

Modification of the right subclavian vein catheterization and its anatomic basis and techniques.

BACKGROUND: Several million subclavian-vein catheters are placed in patients each year to enable caregivers to administer chemotherapy, total parenteral nutrition, or long-term antibiotics or to manage preoperative fluids. Subclavian venipuncture requires the position of a deep vein to be identified with only surface landmarks. But the traditional right subclavian vein (RSV) catheterization (primitive procedures) is not the answer for all patients. The precise location of the vein is not known, and it is important to select the most appropriate method to achieve central venous access safely in any given patient. To modify the primitive procedures of the RSV catheterization for greater success and reduce the complications, anatomic studies and ultrasonography were conducted and clinical applications were validated. METHODS: Anatomical observation and measurement of the RSV and its adjacent structures were performed on 20 adult cadavers according to modified procedures. The RSV catheterization of 2900 cases was carried out by the modified procedure, 500 of these cases were observed by ultrasonography after the operation. RESULTS: The anatomical studies and clinical application showed that the insertion point differs from the bodily form of fatness or leptosome. The clinical data revealed that in the 2900 cases which were performed with the modified approach, the success rate was 98.90% (2868 cases), the failure rate was 1.10% (32 cases), and the complication rate is 0.79% (23 cases), and the catheterization time is (31.2 +/- 10.5) minutes. Five hundred and sixty cases of the RSV catheterization were carried out by the recommended insertion procedure; the results were compared with the modified approach and the traditional approach. The successful rate of the traditional approach was 73.0%, of which the complication rate was 6.1%; the two approaches were significantly different (successful rate: chi(2) = 626.642, P < 0.01; complication rate: chi(2) = 80.708, P< 0.01). CONCLUSIONS: The modified RSV catheterization is characterized with a higher success rate and less complications, and the insertion procedure differs from the bodily form of fatness or leptosome.

Adolescent↗

PubMedDate not supplied

[Comparative study of radial and cubital arterial catheterization].

In this prospective study we evaluated catheterization of the cubital artery as an alternative to cannulation of the radial artery. Seventy six surgical patients were randomly allocated into two groups of 38 patients according to the intention to catheterize the cubital or the radial artery. The incidence of failure and the technical difficulties were significantly higher in cubital than in radial arterial catheterization (p less than 0.001 and p less than 0.05, respectively) and they were related to the cubital pulse palpation. There were no significant differences in the time elapsed to achieve the catheterization, time of stability of the catheter, nor in the incidence of complications. The qualification of the technician, the arterial blood pressure and the anatomic characteristics of the forearm did not influence the results. We conclude that whenever the cubital arterial pulse is appropriately perceived, catheterization of this artery is a good alternative to radial catheterization.

Arm↗

PubMed1991

[An investigation of radiation exposure on pediatric patients and doctors during cardiac catheterization and cineangiography].

Cardiac catheterization and cineangiography are invasive diagnostic radiological examinations which exposure the patient to a relatively high radiation dose, the largest radiation dose of any diagnostic examination. Sixty-one infants and children, aged 28 days to 15 years, were randomly selected into this study to assess such questions regarding cardiac catheterization in children as; (1) How much the pediatric patient's and doctor's radiation exposure is during a routine cardiac catheterization and cineangiography? (2) What difference are there in exposure to various areas of the body? (3) How much radiation exposure is related to cineangiography compared with fluoroscopy? (4) How much radiation exposure may be reduced by lead apron worn by doctors? Thermoluminescent dosimeters containing 80 mg of CaSO4: Dy were applied to the body for the measurement of radiation exposure during cardiac catheterization. In hemodynamic assessment of catheterization (mean time 6 +/- 5 min), dosimeters were placed on various areas of the patient's skin and unexposed dosimeters were attached to mid sternum and right lateral chest during cineangiography (mean time 11 +/- 5 sec). Average skin doses over the patients' organs during catheterization and cineangiography were: eye 51 mu Gy, thyroid 746 mu Gy, sternum 5,102 mu Gy, right lateral chest 10,098 mu Gy, umbilicus 123 mu Gy and gonad 24 mu Gy. The radiation exposure during cineangiography at sternum and right lateral chest contributed to 61% and 70% of total exposure.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

PubMed1990

[Pulmonary perfusion and ventilation scintigraphies before and after cardiac catheterization in infants with congenital heart diseases].

We performed 99mTc-MAA pulmonary perfusion scintigraphies before and after catheterization of 50 infants with congenital heart disease. 81mKr ventilation scintigraphies were also performed in 41 patients. Both right and left heart catheterization (23 patients) and right heart catheterization (27 patients) were performed by Seldinger's method. Pulmonary perfusion scintigraphies showed new perfusion defects in 6 patients (12%) following catheterization. Of six patients, three had ventilation defects. Clinical characteristics, duration of catheterization, hemodynamic variables were not significantly different between patients with and without lung perfusion defects. The lung perfusion defects seemed to be due to pulmonary embolism following cardiac catheterization.

Adolescent↗

PubMedDate not supplied

Venous thrombosis after cardiac catheterization in infants.

Factors influencing the rate of post-catheterization venous thrombosis were studied in 180 infants below one year of age. The initial cardiac catheterization was performed either with cutdown technique or percutaneously. At repeat catheterization on the ipsilateral side presence or absence of thrombosis was noted. The overall thrombosis frequency was higher than previously reported, 15.6 per cent. The rate increased with decreasing weight. An increased rate of thrombosis was also found with indwelling femoral vein catheter left in place for more than 24 hours, and infection. In 6 cases, thrombosis involved only the catheterized side and would have been missed by recatheterization from the contralateral side. It was noteworthy that 9 of the thromboses spared the catheterized vessel and engaged only the vena cava. Among factors not influencing thrombosis rate were age, type of cardiac malformation, cyanosis, early operation, catheterization time or balloon septostomy. Percutaneous or cutdown technique did not influence thrombosis rate.

Body Weight↗

PubMed1986

[Pathology of vein, artery and heart catheterization. Studies of autopsies].

Among 17,161 autopsies of children and adults 319 cases with complications after catheterization (catheterization of veins, arteries and heart) were analysed. The following pathologo-anatomical findings were established: Haemorrhages, thromboses, thrombophlebitis, incorrect positions of the catheter, embolism after catheterization, perforations of vessels, heart injuries, pleura injuries, pneumo- and haemothorax as well as sepsis and septicopyaemia. The complications were subdivided according to early and late injuries. In 10% the complications after catheterization were directly and indirectly connected with the cause of death. In the clinic the catheterization of the vein is a necessary diagnostic and therapeutic intervention. The evaluation of an extensive autopsy material, however, shows that severe and lethal complications may appear in connection with catheterization. For these reasons a broad use is prohibited. The demand of a strong indication is unrestrictedly to be supported.

Adult↗

PubMed1983

[Heart catheterization in newborn and young infants. Description of the method].

The data of 343 newborns and young infants were reviewed who, from 1968 until August 1982, had undergone heart catheterization. Variations in frequency of catheterization and diagnoses as well as lethality were investigated. The first rise of heart catheterization performances could be noted in the years of 1968 and 1969 (by routine application of the Rashkind procedure), another remarkable rise took place in the years from 1971 to 1975, probably due to better feasibilities of modern cardiac surgery. Later on, a new dynamic plateau was developed. With the utilization of echocardiography, a significant decrease of heart catheterization performances in certain diagnostic groups (HLH, PFC) was registered. Nowadays, however, new diagnostic challenges (infants with low gestational age, respiratory problems, PDA) require heart catheterization. Comparison of the different diagnostic groups' lethality rate reveals that children undergoing heart catheterization, in order to rule out TGA, demonstrate a remarkably higher lethality rate (27%) than children suffering from TGA (3.7%). Introduction of echocardiography has decreased this risk significantly.

Age Factors↗

PubMedDate not supplied

[One-day prevalence study of catheterized patients at a university general hospital. The SIUMAR project].

OBJECTIVES: This prevalence study analyzed urinary catheter use during a day in the Hospital Universitario del Mar of Barcelona. Furthermore, we investigated the indication and duration of urinary catheterization, the presence of urinary infection and the use of antibiotics. METHODS: All hospitalized patients were included in the study and all pertinent data were obtained from patient clinical history from every department. RESULTS: Overall, 14.75% of the patients were catheterized. The surgical departments showed a higher incidence (18%) than the other departments (14%). The catheter was indwelling for a median of 12.5 days and was frequently indicated for diuresis control (49.1%), 74.5% of the patients were catheterized at the hospital, 20% of these patients were febrile and had a positive urine culture, and only 14.5% had other infectious foci and a negative urine culture. CONCLUSIONS: There was no clear indication for catheterization in a high percentage of catheterized patients, which emphasized the need for continuous evaluation of catheter use. Antibiotics were used in excess in catheterized patients, the quinolones and the last generation of cephalosporins being the most widely utilized. The indiscriminate use of these potent antibiotics can cause undesired effects and increase hospital costs.

Adult↗

PubMed1995

Effects of routine premedication for cardiac catheterization on sedation, level of anxiety and arterial oxygen saturation.

OBJECTIVE: To assess the efficacy and side effects of routine premedication in patients undergoing cardiac catheterization procedures in a tertiary cardiac care institute. The criteria used included: arterial hemoglobin oxygen saturation (%SaO2), level of sedation and level of anxiety before and after the procedure. Overall patient satisfaction was also quantified. DESIGN: Sixty-two adult patients scheduled for cardiac catheterization procedures were recruited for the study. They were premedicated with one of several premedication regimens: oral diazepam 5 to 10 mg; oral lorazepam 1 mg; oral diazepam 10 mg+oral promethazine 25 mg; or oral diazepam 10 mg+oral diphenhydramine 25 mg. No attempt was made to control the premedication the patients received; it was ordered by each patient's cardiologist according to personal preference. Patients underwent pulse oximetry and evaluation of sedation, anxiety and level of satisfaction before and after cardiac catheterization. RESULTS: All patients tested had values for mean precatheterization %SaO2 above 92%. No patient had postcatheterization %SaO2 readings below that defined as indicating clinically significant hypoxemia (%SaO2 less than 90%). Patients were awake or lightly sedated before and after cardiac catheterization. Thirteen per cent of patients suffered from high levels of anxiety before, and 16% during, cardiac catheterization. Twenty-three per cent of patients reported being dissatisfied with the premedication before, and 10% of patients reported being dissatisfied during, cardiac catheterization. CONCLUSIONS: Clinically significant hypoxemia and oversedation are not problems for most patients given the types and doses of precatheterization medication used in the study population. The premedication schedules followed in the study failed to provide satisfaction and anxiolysis in a significant number of those studied.

Aged↗

PubMed1993

Clean intermittent catheterization--physical and psychological complications.

During a 6 months period in 1988, 407 patients (206 men and 201 women) with a mean age of 51.7 years, treated with clean intermittent catheterization (CIC), were included in a one-year prospective follow-up study regarding physical and psychological complications and complaints related to the treatment. According to diagnoses and examinations, the patients were divided in 5 groups: supranuclear affections (106 patients), infranuclear affections (141), detrusor myopathy (136), infravesical obstruction (19) and suprapontine affections (5). Significant bacteriuria was found in 50.6% of all urine samples analyzed, with E. Coli as the dominant species. In urine samples from patients not using antiinfective agents, bacteriuria was found in 57.5% while the corresponding figures in patients using methenamine hippurate and antibiotics were 42.5% and 37.5% respectively. Bacteriuria was found equally in both sexes. The distribution of species was equal in CIC-treated patients and in other outpatients studied. Only minor differences were found regarding the drug resistance pattern. The prevalence of symptomatic urinary tract infections varied from 11.9% to 17.4% with a higher frequency in females and patients using antibiotics. During the observation period of one year 24.5% had no clinical UTI at all, 58.6% had minor symptoms, 14.3% had more comprehensive or frequent symptoms while 2.6% claimed major symptoms. Women had a higher clinical infection rate than men (p < 0.01). Bleeding in connection with the catheterization procedure varied from 10.7% to 13.6%. Traces of blood were detected in 22.8% of all urine samples analyzed with no differences between patients who claimed observing blood and those denying. No other major physical complications were detected in significant values or seriousness. Predictive factors of clinical UTI were low age and high mean catheterization volume in female patients. In male patients low age, neurogenic bladder dysfunction and non-self-catheterization were predictors in addition to urine leakage in those with neurogenic dysfunction. Bacteriuria was a risk factor of future clinical infection and bacteriuria. No other risk factor of bacteriuria could be identified in the female population, while low frequency of catheterization, high age and non-self-catheterization were found predictive in males.(ABSTRACT TRUNCATED AT 400 WORDS)

Adolescent↗

PubMed1993

[Residual urine after intermittent catheterization in patients with spinal cord injuries].

Residual urine following catheterization was studied using ultrasonography (Ultramark II Scientific Medical System) in 12 patients with spinal cord injury, for an average of four months (range 3-7 months) after time of injury. All patients were examined three times. Urinary tract infections were also registered, and the functional type of the urinary bladder was identified by cystometric examination. Ultrasonography showed residual urine volumes after 25 of a total of 36 catheterizations (70%). In seven of these catheterizations the residual urine volume exceeded 50 ml, and in two cases was more than 100 ml. None of the patients had a residual urinary volume of more than 50 ml after all three catheterizations, but in all but two patients, some residual urine volume was found after at least one of the catheterizations. Low and non-significant correlations were found between residual volume and frequency of urinary tract infections. It is possible that even small residual urine volumes after catheterization may predispose for urinary tract infections in these patients.

Adolescent↗

PubMed1997

Complications associated with pulmonary artery catheterization.

OBJECTIVE: To review the literature addressing complications associated with pulmonary artery catheterization. DATA SOURCE: All pertinent English language articles dealing with complications associated with pulmonary artery catheterization were retrieved from 1979 through 1996. STUDY SELECTION: Articles were chosen for review if the primary objective of the paper was complications associated with pulmonary artery catheterization. DATA EXTRACTION: From the literature selected, information was obtained about frequency and types of complications associated with pulmonary artery catheterization. DATA SYNTHESIS: Complications are grouped into three categories: complications associated with insertion, complications associated with indwelling catheters, and complications that occur during or after removal of the catheter. CONCLUSION: With the introduction of any new technology, there are risks and potential complications. Pulmonary artery catheterization was introduced in 1970 and has not been without complications and controversy. Recent research findings have again led to the discussion of the efficacy and safety of pulmonary artery catheter (PAC) use. This article discusses complications associated with pulmonary artery catheterization and makes recommendations for future research and continued safe use of the PAC.

Catheterization, Swan-Ganz↗

PubMed1997

[Method for transurethral catheterization for 1-3 days for pelvic floor relaxation in the postoperative period].

This clinic trial, randomized and blinded was done to determine efficient whether reducing transurethral Foley catheterization from 3 days to 1 would lead to fewer urinary (UTI) tract infections without retention becoming a problem. Fifty women undergoing vaginal plastic repair to either 1 or 3 days catheterization. Of 25 patients catheterized for both group postoperative urinary retention occurred in 2 (8%) and required a new catheter. Of 25 patients catheterized for 1 day UTI was diagnosed in 1 (4%) and in 5(20) of those catheterized for 3 days, mean postoperative stay was 2 day for patients catheterized for 1 day and 3 days for those for 3 days. The differences are statistically significant, therefore catheter time may safely be reduced to 1 day. This may be associated with a reduced rate postoperative urinary retention, urinary tract infection, and stay postoperative.

Adult↗