Biomedical subjects

Mary King

Publications and source records attributed to Mary King.

10 recordsLinked to original sources

PubMed2006

A surgical skills laboratory improves residents' knowledge and performance of episiotomy repair.

OBJECTIVE: This study was undertaken to assess whether a surgical skills laboratory improves residents' knowledge and performance of episiotomy repair. STUDY DESIGN: Twenty-four first- and second-year residents were randomly assigned to either a surgical skills laboratory on episiotomy repair or traditional teaching alone. Pre- and posttests assessed basic knowledge. Blinded attending physicians assessed performance, evaluating residents on second-degree laceration/episiotomy repairs in the clinical setting with 3 validated tools: a task-specific checklist, global rating scale, and a pass-fail grade. RESULTS: Postgraduate year 1 (PGY-1) residents participating in the laboratory scored significantly better on all 3 surgical assessment tools: the checklist, the global score, and the pass/fail analysis. All the residents who had the teaching laboratory demonstrated significant improvements on knowledge and the skills checklist. PGY-2 residents did not benefit as much as PGY-1 residents. CONCLUSION: A surgical skills laboratory improved residents' knowledge and performance in the clinical setting. Improvement was greatest for PGY-1 residents.

Clinical Competence↗

PubMed2006

T-genes and limb bud development.

The T-box family of transcriptional factors is ancient and highly conserved among most species of animals. Haploinsufficiency of multiple T-box proteins results in severe human congenital malformation syndromes, involving craniofacial, cardiovascular, and skeletal structures. These genes have major roles in embryogenesis, including the development of the limbs. Formation of the limbs begins with a limb bud and its morphogenesis requires complex epithelial-mesenchymal interactions. Recent studies have shown that T, Tbx2, Tbx3, Tbx4, Tbx5, Tbx15, and Tbx18 are all expressed in the limb buds, and many have developmental functions. The study of these genes is clinically relevant as mutations in several of them cause human congenital malformation syndromes. Furthermore, understanding the function and biology of these genes is important in understanding normal embryogenesis.

Gene Expression Regulation, Developmental↗

PubMed2006

Women's responses to ultrasound examinations during routine screens in an obstetric clinic.

OBJECTIVE: The primary purpose of this research was to evaluate the impact of prenatal ultrasound consultation on maternal-fetal attachment, knowledge of fetal behavior, and development and reduction of anxiety in pregnant women scheduled for routine ultrasound screens. A standard depression screen was also used to evaluate depression levels of women undergoing these screens in the sonography clinic. METHODS: To evaluate the impact of an ultrasound consultation, the following were undertaken: (1) a preliminary observational study of routine screens in the sonography clinic was performed; (2) an ultrasound consultation manual was developed and established as reliable; and (3) women undergoing evaluations between 16 and 26 weeks' gestational age were randomly assigned to a standard care group (n = 24; the standard clinical ultrasound screen) or an ultrasound consultation group (n = 28; the ultrasound consultation was done, including the standard screen with extended consultation on fetal development, maternal and familial responses, and maternal-fetal interaction). RESULTS: The ultrasound consultation group had a significant positive change in maternal-fetal attachment scores, lower state anxiety scores, and more favorable responses to the sonographic examination (P .05). Women's depression scores did not differ between the ultrasound consultation and standard care groups and were similar to maternal prenatal depression levels in other studies. CONCLUSIONS: Ultrasound consultation was responsible for increasing maternal-fetal attachment and reducing maternal anxiety. It may be an important component of more comprehensive prevention/intervention strategies. The implications for ultrasound consultation in clinical research and practice are discussed.

Adolescent↗

PubMed2004

Inherited myoclonus-dystonia and epilepsy: further evidence of an association?

Epilepsy and electroencephalogram (EEG) abnormalities have been considered exclusion criteria for the clinical diagnosis of myoclonus-dystonia (M-D). We report on the second M-D family in which several clinically affected epsilon-sarcoglycan gene (SGCE) mutation carriers have seizures in addition to myoclonus and dystonia, adding to the evidence that epilepsy and EEG abnormalities may form part of the phenotypic spectrum of the condition. A nonsense mutation in exon 3 (289C-->T) of SGCE resulting in the insertion of a premature stop codon (R97X) was detected in affected members of this family.

Adolescent↗

PubMed2003

Sustained benefit of a community and professional intervention to increase acute stroke therapy.

BACKGROUND: The ultimate test of an educational intervention is the sustainability of the effect after the intervention ceases. METHODS: The TLL Temple Foundation Stroke Project was a quasi-experimental study aimed at increasing Food and Drug Administration-approved acute stroke therapy in a nonurban community in east Texas. During the intensive community and professional intervention (phase 2), significantly more patients with acute stroke received intravenous tissue plasminogen activator (tPA) compared with the preintervention period (phase 1). In the comparison community, no change was noted. We present the results of tPA treatment in the 6 months after the intervention ended (phase 3). RESULTS: Two hundred thirty-eight patients had a validated stroke during phase 3. Among patients who experienced an ischemic stroke, 11.2% in the intervention group received intravenous tPA compared with 2.2% in phase 1 (P =.007). In the comparison group, 1.4% received intravenous tPA in phase 3 compared with 0.7% in phase 1 (P>.99). Among eligible candidates for treatment, 69.2% were treated in phase 3 in the intervention community compared with 13.6% in phase 1 (P =.002). In the comparison group, 20.0% were treated in phase 3 compared with 6.7% in phase 1 (P =.45). There was 1 protocol violation among the 9 patients treated in the intervention community in phase 3. CONCLUSIONS: There was a sustained benefit of the intervention in increasing tPA treatments in the intervention community even after cessation of the educational effort. Treatments in the control community remained few through all 3 phases of the study. A carefully planned multilevel intervention can improve community stroke treatments even in a nonurban community.

Drug Utilization↗

PubMed2002

Improving delivery of acute stroke therapy: The TLL Temple Foundation Stroke Project.

BACKGROUND AND PURPOSE: Only a small minority of acute stroke patients receive approved acute stroke therapy. We performed a community and professional behavioral intervention project to increase the proportion of stroke patients treated with approved acute stroke therapy. METHODS: This study used a quasi-experimental design. Intervention and comparison communities were compared at baseline and during educational intervention. The communities were based in 5 nonurban East Texas counties. The multilevel intervention worked with hospitals and community physicians while changing the stroke identification skills, outcome expectations, and social norms of community residents. The primary goal was to increase the proportion of patients treated with intravenous recombinant tissue plasminogen activator (rTPA) from 1% to 6% of all cerebrovascular events in the intervention community. RESULTS: We prospectively evaluated 1733 patients and validated 1189 cerebrovascular events. Intravenous rTPA treatment increased from 1.38% to 5.75% among all cerebrovascular event patients in the intervention community (P=0.01) compared with a change from 0.49% to 0.55% in the comparison community (P=1.00). Among the ischemic stroke patients, an increase from 2.21% to 8.65% was noted in the intervention community (P=0.02). The comparison group did not appreciably change (0.71% to 0.86%, P=1.00). Of eligible intravenous rTPA candidates, treatment increased in the intervention community from 14% to 52% (P=0.003) and was unchanged in the comparison community (7% to 6%, P=1.00). CONCLUSIONS: An aggressive, multilevel stroke educational intervention program can increase delivery of acute stroke therapy. This may have important public health implications for reducing disability on a national level.

Acute Disease↗

PubMedDate not supplied

Maintenance of skin integrity as a clinical indicator of nursing care.

OBJECTIVE: To assess maintenance of skin integrity in hospitalized patients as a clinical indicator of quality nursing care. DESIGN: Descriptive correlational study. SETTING: 17 acute care urban and rural hospitals in Texas. PARTICIPANTS: 723 hospitalized patients from 33 medical-surgical units. MAIN OUTCOME MEASURES: Pressure ulcers since admission and nursing care practices per unit. MAIN RESULTS: Overall prevalence of pressure ulcers since admission (4.7%) was lower than previously reported for acute care settings. Prevalence of pressure ulcers in hospitalized patients (10%) was higher than found in the Texas Nurses Association feasibility study (3.7%). The skin integrity ratio was strongly correlated for several unit variables, including number of beds per unit (r = 0.623) and average daily census per unit (r = 0.909). Benchmarking data across units showed that units with subjects that maintained skin integrity had a lower percentage of patients assessed on admission and performed daily assessments less frequently than did the units with subjects that did not maintain skin integrity. In addition, the units with subjects that maintained skin integrity classified fewer patients as at risk for pressure ulcer development and did not implement a skin care protocol for these patients. CONCLUSION: Patients who developed a pressure ulcer after admission were older and had more risk for pressure ulcers than those who maintained skin integrity. Benchmarking data detected various differences in nursing care. Significant relationships between study variables demonstrate the importance of assessing clinical indicators to monitor nursing care. Outcomes such as skin integrity, pressure ulcer since admission, and nosocomial ratio represent the quality of nursing care.

Adolescent↗

PubMedDate not supplied

Evaluation of an electronic monitoring device for urinary incontinence in elderly patients in an acute care setting.

AIM: The primary aim of this study was to determine whether the use of habit training with an electronic monitoring device is better than standard habit training in the assessment and management of urinary incontinence in elderly patients in acute care hospitals. The second aim was to describe nurses' perceptions of continence management in acute care settings. DESIGN: A randomized controlled trial was conducted for an 18-month period. SAMPLE AND SETTING: The sample consisted of 41 elderly incontinent patients who resided on the acute care rehabilitation wards of 2 western Australian hospitals. INSTRUMENTS: A continence assessment form was used to document self-reported or carer-reported frequency and severity of incontinence. A continence monitoring chart was used to record voiding patterns and continence outcomes. A semi-structured interview guide was developed to elicit nurses' perceptions of continence management. RESULTS: Findings revealed no significant improvements in the self-reported or carer-reported frequency of incontinence from baseline to follow-up of in-patients and at 1 month after discharge, although there was a trend toward improvement in both the experimental and the control groups at the posttest time points. A significant reduction in self-reported or carer-reported severity of incontinence was demonstrated in the experimental group at 1 month follow-up (P = 5.025).Nurses' perceptions of continence management of elderly patients in acute care settings ranged from positive to extremely negative. Even those with positive perceptions were challenged by problems with device malfunction, perceptions of lack of time, lack of support from other staff, and lack of knowledge about how best to meet the continence management needs of this complex group of patients. CONCLUSION: The potential value of an electronic monitoring device for reducing incontinence could not be adequately assessed because of the small sample size and problems with the device and with implementing the study protocol. Although it was possible to determine a pattern in voiding times using the electronic device, compliance with the toileting regimen was difficult to achieve.Researchers and clinicians planning future studies with this device should be aware of the practical limitations associated with habit-training regimens for elderly patients in the acute care setting.

Acute Disease↗

PubMedDate not supplied

Chorioamniotic membrane separation following open fetal surgery: pregnancy outcome.

OBJECTIVE: To review the incidence of posthysterotomy chorioamniotic membrane separation and delivery outcome following open fetal surgery [myelomeningocele (MMC); cystic adenomatoid malformation (CCAM); congenital diaphragmatic hernia (CDH); sacrococcygeal teratoma (SCT)]. STUDY DESIGN: Retrospective review of a maternal population undergoing open fetal surgery at a single tertiary level program (1998-2001) following the initiation of close postoperative ultrasound follow-up for membrane separation. Onset of membrane separation was coded as not present (NP), immediate (<2 weeks) or delayed (>2 weeks) from day of surgery. RESULTS: Fifty-three charts were reviewed: MMC 43, CCAM 7, CDH 1, and SCT 2. In the MMC group there were 26 NP, 8 immediate, and 9 delayed. Preterm labor occurred in 4 patients with only 2 having had membrane separation. Risk of membrane separation is increased for surgery done at less than 23 weeks gestation (p < 0.005). Delay from MMC surgery to delivery was 11.0, 9.8, 12.0 weeks for NP, immediate, and delay, respectively. In the MMC group, there were 3 neonatal deaths (NND) at 9, 9, and 21 days post surgery (PROM/PTL; chorioamnionitis, PROM/PTL, respectively). No membrane separation was present in the CCAM, CDH, and SCT cases. CONCLUSIONS: (1) Membrane separation was significantly more likely to occur if surgery was performed prior to 23 weeks. (2) Membrane separation post hysterotomy (17/50 = 34%) may be associated with an increased risk of PROM but not delivery before 30 weeks gestation. (3) Delivery prior to 33 weeks gestation for MMC groups was 12/43 (28%) with 3 NND (7%). (4) Elective delivery at 36-37 weeks gestation was possible for 43% of the fetal surgery population.

Amnion↗

PubMedDate not supplied

Thoracoamniotic shunts: fetal treatment of pleural effusions and congenital cystic adenomatoid malformations.

OBJECTIVE: To determine whether fetuses that underwent thoracoamniotic shunt placement for treatment of pleural effusion (PE) or macrocystic congenital cystic adenomatoid malformation (CCAM) have an improved outcome as compared with an untreated population. METHODS: A retrospective review from a single tertiary center was performed using thoracoamniotic shunt placement to treat PE or macrocystic CCAM between 1998 and 2001. Thoracoamniotic shunts were used on 26 occasions in 19 pregnancies. RESULTS: The average gestational age at the diagnosis of PE and CCAM was 22 + 4 and 20 + 0 weeks, respectively. Shunts were offered in pregnancies complicated by hydrops or at significant risk for pulmonary hypoplasia. Shunts were placed at 26 + 2 weeks (average) and 23 + 1 weeks (average) in the PE and CCAM groups, respectively. In CCAM patients, the mean pre- and postshunting mass volumes were 50.5 and 25.7 cm(3), representing a 51% reduction in mass volume following shunt placement. In the PE group, the average delivery age was 33 + 5 weeks, with an average shunt placement to delivery time of 7 + 3 weeks. In the CCAM group, the average delivery was 33 + 3 weeks, with an average shunt placement to delivery time of 10 + 2 weeks. The postnatal survival rates were 67% (6/9) and 70% (7/10) in the PE and CCAM groups, respectively. CONCLUSIONS: (1) Thoracoamniotic shunts should be considered as a treatment option for selected PE or macrocystic CCAM fetuses with hydrops or a significant risk for pulmonary hypoplasia; (2) the neonatal survival with shunting was similar for PE and CCAM groups and was improved as compared with literature reports, and (3) fetuses with CCAM presented earlier with hydrops than those with PE. Successful shunting resulted in a prolongation of pregnancy into the 3rd trimester in both groups.

Adult↗