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PubMed2003

Soil invertebrate fauna enhances grassland succession and diversity.

One of the most important areas in ecology is to elucidate the factors that drive succession in ecosystems and thus influence the diversity of species in natural vegetation. Significant mechanisms in this process are known to be resource limitation and the effects of aboveground vertebrate herbivores. More recently, symbiotic and pathogenic soil microbes have been shown to exert a profound effect on the composition of vegetation and changes therein. However, the influence of invertebrate soil fauna on succession has so far received little attention. Here we report that invertebrate soil fauna might enhance both secondary succession and local plant species diversity. Soil fauna from a series of secondary grassland succession stages selectively suppress early successional dominant plant species, thereby enhancing the relative abundance of subordinate species and also that of species from later succession stages. Soil fauna from the mid-succession stage had the strongest effect. Our results clearly show that soil fauna strongly affects the composition of natural vegetation and we suggest that this knowledge might improve the restoration and conservation of plant species diversity.

Animals↗
PubMed2002

Local anaesthetic endonasal endoscopic laser dacryocystorhinostomy: analysis of patients' acceptability and various factors affecting the success of this procedure.

BACKGROUND AND OBJECTIVES: Endonasal endoscopic laser dacryocystorhinostomy is now a well established, effective approach to relieve nasolacrimal duct obstruction. Whereas attempts have been made to comment on the efficacy of the procedure, no study has been conducted to evaluate the acceptability of this procedure by those at the receiving end, ie, the patients. An attempt has been made in the present study to critically evaluate the procedure from the point of view of patients' acceptability and also to evaluate certain factors which may influence the success rate of this procedure. PATIENTS AND METHODS: Forty-six eyes from 40 patients underwent endonasal endoscopic laser dacryocystorhinostomy, performed by the same surgeon, over a period of 15 months. Various aspects of the procedure were evaluated by patients by filling out a simple questionnaire (Figure 1). In addition to recording patients' views, success of the procedure was confirmed by performing a postoperative sac washout in the clinic. Patients were also subdivided according to their age, duration of symptoms and history of previous surgical intervention. The data were statistically analysed using chi-square tests with the Yates correction. RESULTS: The percentage of patients who declared themselves completely cured was 65.22%. A partial resolution was felt by 23.91% of patients and no improvement was reported by 10.87% of patients. Forty-two out of the 46 eyes (91.3%) achieved anatomical success by the procedure, as shown by a postoperative sac washout performed in the clinic. Some of them, however, did not have complete resolution of their symptoms perhaps due to an additional factor of lacrimal pump dysfunction in these patients. During the procedure 60.86% of eyes felt no discomfort at all whereas 39.14% of eyes felt some discomfort at some point of time during the procedure (Table 1). When directly asked 86.12% of patients recommended the procedure (implying that the procedure had some good effect on their quality of life), 8.33% of patients did not recommend it and 5.55% of patients made no comments. Various factors affecting the success of this procedure were analysed (Table 2) and it was found that eyes which had no previous surgical intervention showed a complete cure rate which was significantly higher than that seen in eyes which had some sort of previous intervention (P = 0.0003); eyes with a short (<6 mths) duration of symptoms showed significantly higher success rates (P = 0.0098) in comparison to that shown by eyes with longer (>6 mths) duration of symptoms; and younger patients (<50 yrs) had a complete resolution rate much higher than patients over 50 yrs of age (P = 0.0309). CONCLUSION: The present study clearly shows that endonasal endoscopic laser DCR is an effective procedure, well tolerated and recommended by the patients. Discomfort during the procedure is not a major problem. Younger patients, with no previous surgical intervention and with short duration of symptoms are likely to be benefited the most. Though success rates are higher with external DCR, endonasal endoscopic laser DCR offers certain advantages over the external approach while keeping the option of external DCR open, if needed at a later date.

Administration, Topical↗
PubMed2005

Effect of inbreeding and heritability of sperm competition success in the bulb mite Rhizoglyphus robini.

Sperm competition is a potent evolutionary force shaping the reproductive biology of most animal species. Here, we estimated the heritability of sperm competition success in the promiscuous bulb mite Rhizoglyphus robini. Sperm competition success was measured with the sterile male technique as the proportion of eggs fertilised by the second of three males mated with a single female. Sperm competition success responded significantly to selection. The heritability estimated from the response to five generations of selection was 0.13. We also estimated the effect of inbreeding on sperm competition success. Males produced by sib-mating (F=0.25) had a significantly lower sperm competition success than outbred males. The estimated coefficient of inbreeding depression was 0.53. Such high inbreeding depression together with moderately low heritability is consistent with the view that sperm competitive ability is under strong directional selection and strongly influences the reproductive success of males.

Acaridae↗
PubMed2004

Pretreatment predictors of attrition and successful weight management in women.

OBJECTIVE: This study analyzed baseline behavioral and psychosocial differences between successful and nonsuccessful participants in a behavioral weight management program. Success was defined by commonly used health-related criteria (5% weight loss). Noncompletion was also used as a marker of a failed attempt at weight control. SUBJECTS: A total of 158 healthy overweight and obese women (age, 48.0+/-4.5 y; BMI, 31.0+/-3.8 kg/m(2); body fat, 44.5+/-5.3%). INTERVENTION: Subjects participated in a 16-week lifestyle weight loss program consisting of group-based behavior therapy to improve diet and increase physical activity, and were followed for 1 y after treatment. METHODS: At baseline, all women completed a comprehensive behavioral and psychosocial battery assessing dieting/weight history, dietary intake and eating behaviors, exercise, self-efficacy, outcome evaluations, body image, and other variables considered relevant for weight management. Participants who maintained a weight loss of 5% or more at 16 months (or 10% or more of initial fat mass) were classified as successful. Nonsuccessful participants were those who dropped out and completers who had not lost weight at follow-up. RESULTS: Of all participants, 30% (n=47) did not complete initial treatment and/or missed follow-up assessments (noncompleters). Noncompletion was independently associated with more previous weight loss attempts, poorer quality of life, more stringent weight outcome evaluations, and lower reported carbohydrate intake at baseline. In logistic regression, completion status was predicted correctly in 84% of all cases (chi(2)=45.5, P<0.001), using baseline information only. Additional predictors of attrition were initial weight, exercise minutes, fiber intake, binge eating, psychological health, and body image. A large variation in weight loss/maintenance results was observed (range: 37.2 kg for 16-month weight change). Independent baseline predictors of success at 16 months were more moderate weight outcome evaluations, lower level of previous dieting, higher exercise self-efficacy, and smaller waist-to-hip ratio. Success status at follow-up was predicted correctly in 74% of all starting cases (chi(2)=33.6, P<0.001). CONCLUSION: Psychosocial and behavioral variables (eg, dieting history, dietary intake, outcome evaluations, exercise self-efficacy, and quality of life) may be useful as pretreatment predictors of success level and/or attrition in previously overweight and mildly obese women who volunteer for behavioral weight control programs. These factors can be used in developing readiness profiles for weight management, a potentially important tool to address the issue of low success/completion rates in the current management of obesity.

Adult↗
PubMed2006

Successful dieters have increased neural activity in cortical areas involved in the control of behavior.

OBJECTIVE: To investigate whether dietary restraint, a landmark of successful dieting, is associated with specific patterns of brain responses to the sensory experience of food and meal consumption. DESIGN AND SUBJECTS: Cross-sectional study of the brain's response to the sensory experience of food and meal consumption in nine successful dieters (age: 38+/-7 years, body fat (%): 28+/-3) and 20 non-dieters (age: 31+/-9 years, body fat (%): 33+/-9), all women. MEASUREMENTS: Changes in brain activity in response to the sensory experience of food and meal consumption were assessed by using positron emission tomography and (15)O water as a radiotracer. Body fatness was assessed by dual X-ray absorptiometry. Subjective ratings of hunger and fullness were measured by visual analogue scale. Dietary restraint, disinhibition and hunger were assessed by the Three Factor Eating Questionnaire. RESULTS: Successful dieters had a significantly higher level of dietary restraint compared to non-dieters. In response to meal consumption, successful dieters had a greater activation in the dorsal prefrontal cortex (DPFC), dorsal striatum and anterior cerebellar lobe as compared to non-dieters. In response to the same stimulation, the orbitofrontal cortex (OFC) was significantly more activated in non-dieters as compared to successful dieters. Dietary restraint was positively correlated with the response in the DPFC and negatively with the response in the OFC. The responses in the DPFC and OFC were negatively intercorrelated. CONCLUSION: Cortical areas involved in controlling inappropriate behavioral responses, such as the DPFC, are particularly activated in successful dieters in response to meal consumption. The association between the degree of dietary restraint and the coordinated neural changes in the DPFC and OFC raises the possibility that cognitive control of food intake is achieved by modulating neural circuits controlling food reward.

Adult↗
PubMed2003

Diagnostic reasoning strategies and diagnostic success.

PURPOSE: Cognitive psychology research supports the notion that experts use mental frameworks or "schemes", both to organize knowledge in memory and to solve clinical problems. The central purpose of this study was to determine the relationship between problem-solving strategies and the likelihood of diagnostic success. METHODS: Think-aloud protocols were collected to determine the diagnostic reasoning used by experts and non-experts when attempting to diagnose clinical presentations in gastroenterology. RESULTS: Using logistic regression analysis, the study found that there is a relationship between diagnostic reasoning strategy and the likelihood of diagnostic success. Compared to hypothetico-deductive reasoning, the odds of diagnostic success were significantly greater when subjects used the diagnostic strategies of pattern recognition and scheme-inductive reasoning. Two other factors emerged as independent determinants of diagnostic success: expertise and clinical presentation. Not surprisingly, experts outperformed novices, while the content area of the clinical cases in each of the four clinical presentations demonstrated varying degrees of difficulty and thus diagnostic success. CONCLUSIONS: These findings have significant implications for medical educators. It supports the introduction of "schemes" as a means of enhancing memory organization and improving diagnostic success.

Clinical Competence↗
PubMed2002

Pulmonary vein isolation: comparison of bipolar and unipolar electrograms at successful and unsuccessful ostial ablation sites.

INTRODUCTION: No prior studies have quantitatively analyzed the characteristics of bipolar or unipolar electrograms that may be helpful in identifying successful ostial ablation sites in patients with atrial fibrillation undergoing segmental pulmonary vein isolation. METHODS AND RESULTS: The characteristics of bipolar and unipolar electrograms recorded at 185 successful and 120 unsuccessful ostial pulmonary venous ablation sites were analyzed in 21 patients with atrial fibrillation. A decapolar Lasso catheter was positioned near the ostia of the pulmonary veins, and a conventional ablation catheter was used to deliver radiofrequency energy at individual ostial sites where pulmonary vein potentials were recorded. With both bipolar and unipolar recordings, the only timing parameter that distinguished successful from unsuccessful ostial ablation sites was the timing of the electrogram recorded by the ablation catheter relative to the earliest pulmonary vein potential recorded by the Lasso catheter. With both bipolar and unipolar recordings, electrograms demonstrated a larger amplitude at successful than at unsuccessful ablation sites. Unipolar electrograms had a steeper intrinsic deflection at successful than at unsuccessful ostial ablation sites. The morphologies of the unipolar electrograms recorded by the ablation catheter and by the contiguous electrode of the Lasso catheter usually were identical. CONCLUSION: In patients undergoing segmental isolation of the pulmonary veins, unipolar recordings provide more information than bipolar recordings helpful in distinguishing successful from unsuccessful ostial ablation sites. Furthermore, unipolar recordings, but not bipolar recordings, allow accurate localization of the position of the ablation catheter relative to the electrodes of the Lasso catheter.

Adult↗
PubMed2005

Relationship between successful ablation sites and the scar border zone defined by substrate mapping for ventricular tachycardia post-myocardial infarction.

INTRODUCTION: It is unknown if identification of scar border zones by electroanatomical mapping correlates with successful ablation sites determined from mapping during ventricular tachycardia (VT) post-myocardial infarction (MI). We sought to assess the relationship between successful ablation sites of hemodynamically stable post-MI VTs determined by mapping during VT with the scar border zone defined in sinus rhythm. METHODS AND RESULTS: Forty-six patients presenting with hemodynamically stable, mappable monomorphic VT post-MI and who had at least one such VT successfully ablated were prospectively included in the study. In each patient, VT was ablated by targeting regions during VT that exhibited early activation, +/- isolated mid-diastolic potentials, and concealed entrainment suggesting a critical isthmus site. Prior to ablation, a detailed sinus-rhythm CARTO voltage map of the left ventricle was obtained. A voltage <0.5 mV defined dense scar. Successful VT ablation sites were registered on the sinus voltage map to assess their relationship to the scar border zone. Of the 86 VTs, 68% were successfully ablated at sites in the endocardial border zone. The remaining VTs had ablation sites within the scar in (18%), in normal myocardium (4%), and on the epicardial surface (10%). There were no significant differences in VT recurrence amongst the different groups. CONCLUSION: Successful ablation sites of hemodynamically stable, monomorphic VTs post-MI are often located in the scar border zone as defined by substrate voltage mapping. However, in a sizable minority, ablation sites are located within endocardial scar, epicardially, and even in normal myocardium.

Aged↗
PubMed2001

Factors related to successful job reintegration of people with a lower limb amputation.

OBJECTIVE: To study demographically, amputation-, and employment-related factors that show a relationship to successful job reintegration of patients after lower limb amputation. DESIGN: Cross-sectional study. SETTING: University hospital. PATIENTS: Subjects had an acquired unilateral major amputation of the lower limb at least 2 years before, were aged 18 to 60 years (mean, 46yr), and were living in the Netherlands. All 322 patients were working at the time of amputation and were recruited from orthopedic workshops. INTERVENTION: Questionnaires sent to subjects to self-report (1) demographic and amputation information and (2) job characteristics and readjustment postamputation. Questionnaire sent to rehabilitation specialists to assess physical work load. MAIN OUTCOME MEASURES: Demographically related (age, gender); amputation-related (comorbidity; reason and level; problems with stump, pain, prosthesis use and problems, mobility, rehabilitation); and employment-related (education, physical workload) information about the success of job reintegration. RESULTS: Job reintegration was successful in 79% and unsuccessful in 21% of the amputees. Age at the time of amputation, wearing comfort of the prosthesis, and education level were significant indicators of successful job reintegration. Subjects with physically demanding jobs who changed type of job before and after the amputation more often successfully returned to work than subjects who tried to stay at the same type of job. CONCLUSIONS: Older patients with a low education level and problems with the wearing comfort of the prosthesis are a population at risk who require special attention during the rehabilitation process in order to return to work. Lowering the physical workload by changing to another type of work enhances the chance of successful reintegration.

Adolescent↗
PubMed2000

Bile duct size does not predict success of portoenterostomy for biliary atresia.

BACKGROUND/PURPOSE: Presence of large bile ducts (>200 microm) at the portal end-plate has been suggested to predict success after portoenterostomy. The authors reviewed their patients with biliary atresia to test the hypothesis that bile duct size in patients with successful portoenterostomy was no different than in the patients with unsuccessful portoenterostomy. METHODS: The authors reviewed the patients at their institution from 1989 to 1998 who had the diagnosis of biliary atresia (n = 38). A pathologist blinded to the results of the operation confirmed the measurements of the bile duct remnants. RESULTS: Five of the 38 patients did not have a portoenterostomy. They underwent cholangiogram and liver biopsy and were evaluated for liver transplantation. All patients who underwent surgery (n = 33) had a Roux-en-y hepaticojejunostomy. Twenty-one patients had successful surgery (64%) and 12 patients (36%) had unsuccessful surgery. The average age at operation in the successful group was 50.9 +/- 3 days and in failures, 57.9 +/- 4 days (P = .16). Duct size at the portal end-plate was not different between the successes and failures. Two of the patients in the success group had no evidence of bile ducts grossly or histologically. CONCLUSION: Children presenting early in infancy (<3 months) with biliary atresia should undergo a portoenterostomy regardless of the size of the bile ducts at the time of exploration.

Bile Ducts↗
PubMed2003

Comparison between successful and failed sit-to-stand trials of a patient after traumatic brain injury.

OBJECTIVE: To compare the peak whole-body center of mass (COM) velocities and joint angular contributions in successful and unsuccessful sit-to-stand (STS) trials in a subject with traumatic brain injury (TBI). DESIGN: Single-case study. SETTING: Motion research laboratory. PARTICIPANT: A 24-year-old man who was 3.5 years post-TBI. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Peak horizontal and vertical velocities of the whole-body COM and peak angular velocities of the ankle, knee, hip, and shoulder joints. RESULTS: The peak whole-body COM vertical velocity was significantly lower in the unsuccessful STS trials. Angular velocities at the hip, knee, ankle, and shoulder joints in successful trials exceeded those in unsuccessful trials (P<.001). The subject's peak knee extension velocity was the single major predictor of the peak whole-body COM vertical velocity (r(2)=.90). Knee extension angular velocities greater than 3.25 radian/s were associated with successful STS trials. Knee extension angular velocities between 2.75 and 3.25 radian/s were associated with successful rising 50% of the time; the subject had no success in rising when velocities were less than 2.75 radian/s. CONCLUSIONS: For this subject, sit-back failures occurred in STS attempts characterized by peak whole-body COM vertical velocities that were lower than those generated in successful rising trials. These unsuccessful rising attempts were primarily the result of the subject's inability to generate sufficient knee extension angular velocity.

Adult↗
PubMed2004

Variables associated with successful vaginal birth after one cesarean section: a proposed vaginal birth after cesarean section score.

The objective of this study was to define the variables associated with vaginal birth after cesarean section (VBAC) and to develop a scoring system for the prediction of successful VBAC. We searched our computerized database for parturients with a history of one low-transverse cesarean section (CS) who were delivered during the year 2000. Variables were categorized according to the time period in which they were obtained: (1) first prenatal visit, (2) at the onset of labor, and (3) during labor. Univariate and multiple stepwise logistic regression models were fitted to calculate odds ratios (ORs) and 95% confidence intervals (CIs). Of the 475 parturients with a history of one previous CS, 136 underwent elective CS and 339 underwent a trial of VBAC, of whom 82% were successful. Of the variables that can be obtained at the onset of labor, five were significantly associated with successful VBAC: abnormal presentation as the indication for the primary CS (OR, 7.4; 95% CI 2.8 to 19.2), a previous VBAC (OR, 7.2; 95% CI, 2.1 to 24.8), cervical dilation (OR, 2.5; 95% CI, 1.3 to 4.9), gestational age < or = 41 weeks (OR, 2.8; 95% CI, 1.1 to 7.1), and lower gestational age at the primary CS (OR, 1.2; 95% CI, 1.02 to 1.4). In the proposed VBAC score, each of the four most significant variables was assigned a score ranging between 0 and 3 based on the probability for VBAC. A score < or = 2 was associated with a success rate of 42%, a score between 3 and 6 was associated with a rate of 81%, and a score between 7 and 10 was associated with a 98% successful VBAC rate (p < 0001). The proposed VBAC score may help obstetricians when counseling their patients regarding the individual likelihood of a successful VBAC.

Adult↗
PubMed2006

Do serum beta-human chorionic gonadotropin levels on day 4 following methotrexate treatment of patients with ectopic pregnancy predict successful single-dose therapy?

The purpose of this study is to assess whether serum beta-human chorionic gonadotropin (beta-hCG) levels on day 4 following methotrexate (MTX) treatment in patients with ectopic pregnancy predict successful single-dose therapy or the need for subsequent surgical intervention. Retrospective analysis of patients with ectopic pregnancies treated with MTX (50 mg/m (2)) was conducted. Inclusion criteria for MTX management were serum beta-hCG < 15,000 mU/mL, absent fetal cardiac activity, ultrasonographic gestational sac < 3.5 cm, normal liver function tests, hemodynamically stable patient with no evidence of hemoperitoneum, and informed consent. Day 1, 4, and 7 serum beta-hCG levels were obtained. Outcome parameters included successful single-dose MTX management, the requirement for multiple treatments, and whether subsequent surgery was required. Receiver operator characteristic (ROC) curves were used. P < 0.05 was considered significant throughout. Eighty-three patients were studied. Of these, 60 patients were treated successfully with single doses, 16 patients required two doses, and two patients required three doses of MTX, and five underwent surgical management. Mean day 1 serum beta-hCG levels of patients successfully treated with single-dose MTX was 3938.5 (+/- 589.2 [standard deviation]) versus 1767.65 (+/- 1237.8) mU/mL in patients requiring multiple doses of MTX therapy, ( P < 0.0001). ROC curves for serum beta-hCG levels on days 1, 4, and 7 were 0.449, 0.592, and 0.754, respectively, indicating that only day 7 serum beta-hCG levels were associated with successful single-dose MTX therapy. Serum beta-hCG levels on day 4 of MTX in patients with ectopic pregnancy do not predict successful single-dose therapy or the need for surgery.

Abortifacient Agents, Nonsteroidal↗
PubMedDate not supplied

Characteristics associated with successful weaning in ventilator-dependent preterm infants.

Eighteen ventilator-dependent preterm infants with hyaline membrane disease were studied for 24 hours before and after an attempt at extubation. All were treated with theophylline prior to weaning and achieved average levels of 8.9 +/- 1.7 micrograms/ml (49 +/- 9 mumol/liter) in 13 successfully weaned infants and 8.4 +/- 1.1 micrograms/ml (47 +/- 6 mumol/liter) in 5 infants not extubated, p > 0.05. Infants successfully weaned were significantly (p < 0.01) older, more mature (29 +/- 1 versus 26 +/- 2 weeks' gestational age) and heavier (1107 +/- 236 versus 1016 +/- 256 gm) than infants not successfully extubated. Infants successfully weaned differed only in developing a greater maximal inspiratory force (33.8 +/- 12.3 versus 23.3 +/- 15.0 cm H2O) and higher compliance (1.1 +/- 0.3 versus 0.7 +/- 0.3) during the preweaning treatment period. These results indicate that maturity and size play a significant role in the ability to wean a preterm infant from the ventilator successfully, that maximal inspiratory force and compliance are higher in preterm infants who can be successfully extubated, and that methylxanthines do not uniformly improve pulmonary function in all potentially extubatable preterm infants.

Humans↗
PubMed1982

Improved myocardial function during exercise after successful percutaneous transluminal coronary angioplasty.

Fifty-nine consecutive patients with coronary-artery disease undergoing percutaneous transluminal coronary angioplasty were evaluated with radionuclide ventriculography at rest and during exercise before angioplasty (when possible) and afterward when it was successful. Thirty-eight patients (64 per cent) had an angiographically successful procedure. Three (5 per cent) had coronary occlusion as a complication. Arterial stenosis was reduced from 74 +/- 2 per cent to 31 +/- 3 per cent (mean +/- S.E.M.). The mean ejection fraction was 55 +/- 2 per cent at rest and 51 +/- 3 per cent during exercise before the procedure. After successful angioplasty, the ejection fraction was unchanged at rest but increased to 62 +/- 2 per cent (P less than 0.001) during exercise. Regional dysfunction was present during exercise in 94 per cent of the patients before the procedure and in only 8 per cent after successful angioplasty. Of the 38 patients in whom the procedure was successful, 19 had sustained improvement for over six months, and eight for three to six months. Eleven patients had recurrence of symptoms; the second angioplasty was initially successful in nine. In 24 patients remaining asymptomatic for six months (19 after the first procedure and five after the second), the left ventricular ejection fraction during exercise remained stable or improved.

Adult↗
PubMed2000

Prediction of endometrial ablation success according to perioperative findings.

OBJECTIVE: The aim of this study was to determine which factors in the perioperative period influence the success of endometrial ablation in alleviating menorrhagia. STUDY DESIGN: We performed a retrospective chart review of 120 women aged 27 to 49 years who underwent endometrial ablation after 2 months of preoperative treatment with danazol (Danocrine, 800 mg/d orally) or leuprolide (Lupron, 3.75 mg in one intramuscular injection each month). Patients who required medical management or additional operations to control the vaginal bleeding during follow-up (median follow-up, 37 weeks) were considered to have ablation failures. RESULTS: Sixty-three percent of patients (76/120) had a successful procedure. The chance of success was greater if a cavity of normal appearance was found (odds ratio, 2.3; P =.04). The finding of an intramural fibroid before the procedure resulted in a reduced trend toward success (odds ratio, 0.4; P =.06). The use of danazol pretreatment improved the rate of success overall (odds ratio, 2.2; P =.05) and especially among women <40 years old (P =.01) CONCLUSION: Perioperative findings may provide useful information in counseling patients regarding endometrial ablation. Success is greater among patients with a normal intrauterine cavity and after preoperative treatment with danazol.

Adult↗
PubMed2002

Factors affecting the likelihood of successful induction after intravaginal misoprostol application for cervical ripening and labor induction.

OBJECTIVE: Our purpose was to determine whether maternal age, height and weight, parity, duration of pregnancy, cervical dilatation or Bishop score, and birth weight could be used to predict the likelihood of successful induction in women given intravaginal misoprostol. STUDY DESIGN: A computerized database was compiled of 1373 pregnancies in which intravaginal misoprostol was given for cervical ripening and labor induction. Most of these women were placed on investigational protocols in which the dose of misoprostol administered was 25 to 50 microg and the dosing intervals ranged from 3 to 6 hours. No more than 24 hours of administration was permitted. Induction was undertaken in women with unfavorable cervical examinations (Bishop scores of 4 or less) and without spontaneous labor or ruptured membranes. Univariate and stepwise multiple regression analyses were performed to identify those factors associated with successful induction, defined as vaginal delivery within 24 hours of induction. RESULTS: Six hundred fifty-seven (48%) had successful induction. Parity (odds ratio [OR] 2.5, 95% CI 2.0-2.9, P <.0001), initial cervical dilatation (OR 1.9, 95% CI 1.6-2.3, P <.0001), Bishop score (OR 1.6, 95% CI 1.3, 1.8, P <.0001), and gestational age at entry (OR 1.3, 95% CI 1.1-1.5, P =.002) were significant at the.05 level for predicting successful induction. A multivariate stepwise logistic regression was then performed to evaluate each of these as independent predictors. Parity (OR 2.4, 95% CI 2.0-3.0, P <.0001), initial cervical dilatation (OR 1.7, 95% CI 1.4-2.1, P <.0001), and estimated gestational age (OR 1.3, 95% CI 1.1-1.6, P =.003) are significant independent predictors for successful induction, but initial Bishop score is not significant (P =.19) after adjustment for other significant predicting factors. CONCLUSIONS: The clinical characteristics of parity, initial cervical dilatation, and gestational age at entry are predictors of the likelihood of success of cervical ripening and labor induction with intravaginal misoprostol administration.

Administration, Intravaginal↗
PubMed2003

Clinical features predictive of successfully weaning from spectacles those children with accommodative esotropia.

PURPOSE: It has been reported that most children with accommodative esotropia are not able to discontinue spectacle wear as they become older. We conducted a prospective study to determine which factors are predictive of successfully weaning children from spectacles. METHODS: Beginning in 1995, children with fully accommodative esotropia with a baseline refractive error of + 1.50 to + 5.00 diopters (D) were gradually weaned from their hyperopic correction. Patients with amblyopia or who had previously undergone strabismus surgery were excluded. Children were weaned in 0.50 D increments until spectacles were discontinued or they developed esotropia, asthenopia, or decreased vision. A multivariate analysis was performed to assess the association between successful weaning and various clinical characteristics. RESULTS: Twelve of 20 children (60%) were successfully weaned from spectacles. Spectacles were prescribed at a mean age of 4.2 +/- 1.5 years, and weaning was initiated at a mean age of 8.0 +/- 1.1 years. The spherical equivalent of the least hyperopic eye when spectacles were prescribed was 2.99 +/- 1.06 D. The clinical characteristic most clearly associated with successful weaning was the refractive error at the time glasses were prescribed. Whereas 10 of 11 (91%) patients with < 3 D of hyperopia were weaned from spectacles, only 2 of 9 (22%) patients with 3 to 5 D of hyperopia were successfully weaned from their spectacles (P =.005). CONCLUSIONS: Many children with fully accommodative esotropia can be weaned out of spectacles during the grade school years. The degree of baseline hyperopia appears to be one of the best predictors of success.

Accommodation, Ocular↗