Biomedical subjects

Jim Wan

Publications and source records attributed to Jim Wan.

6 recordsLinked to original sources

PubMed2005

Persistent sexual arousal syndrome: a descriptive study.

INTRODUCTION: Persistent sexual arousal disorder (PSAS) is a poorly documented condition characterized by persistent genital arousal in the absence of conscious feelings of sexual desire. AIM: To determine whether there are replicable features associated with PSAS, to describe salient characteristics of women reporting this condition, and to determine predictors of distress. METHODS: A 46-item Internet survey containing demographic information, symptom description, triggers, exacerbation and relief measures, distress ratings, and life and sexual satisfaction was placed on a secure server. MAIN OUTCOME MEASURES: Frequency analyses of descriptive data, and stepwise multiple regression analysis to identify independent predictors of level of distress. RESULTS: Of the 103 respondents, most were in good health, well educated, and in long-term relationships. Ninety-eight percent of respondents met at least one criterion for PSAS and 53% met all five criteria. Involuntary genital and clitoral arousal persisting for extended time periods, genital arousal unrelated to subjective feelings of sexual desire, and genital arousal not relieved with orgasms were the most frequently endorsed features associated with this syndrome. Symptom triggers included sexual stimulation, masturbation, stress, and anxiety. Distress about the condition was low in 25%, moderate in 35%, and high in 40% of respondents. The strongest predictors of distress were intrusive and unwanted feelings of genital arousal (P < 0.0001), continuous symptoms (P < 0. 001), feelings of unhappiness (P < 0.03), shame (P = 0.0001) and worry (P = 0.01), reduced sexual satisfaction (P < 0.004), enjoyment of symptoms some of the time (P = 0.01), and relationship status (P < 0.004). CONCLUSIONS: The results of this research support the description of a condition (persistent sexual arousal) involving involuntary genital and clitoral arousal unrelated to subjective feelings of sexual desire which persists despite one or more orgasms and which usually feels intrusive and unwanted. Varying levels of distress were identified with this condition as well as a variety of primarily negative emotional reactions.

Adolescent↗

PubMed2004

Bedside limited echocardiography by the emergency physician is accurate during evaluation of the critically ill patient.

OBJECTIVE: Echocardiography can be a rapid, noninvasive, objective tool in the assessment of ventricular function and preload during resuscitation of a critically ill or injured child. We sought to determine the accuracy of bedside limited echocardiography by the emergency physician (BLEEP) in estimation of (1) left ventricular function (LVF) and (2) inferior vena cava (IVC) volume, as an indirect measure of preload. METHODS: We conducted a prospective observational study of a convenience sample of patients who were admitted to our intensive care unit. All patients underwent BLEEP followed by an independent formal echocardiogram by an experienced pediatric echocardiography provider (PEP). IVC volume was assessed by measurement of the maximal diameter of the IVC. LVF was determined by calculating shortening fraction (SF) using M-mode measurements on the parasternal short-axis view at the level of the papillary muscle. An independent blinded pediatric cardiologist reviewed all images for accuracy and quality. Estimates of SF obtained on the BLEEP examination were compared with those obtained by the PEP. RESULTS: Thirty-one patients were enrolled. The mean age was 5.1 years (range: 23 days-16 years); 48.4% (15 of 31) were girls; 58.1% (18 of 31) were on mechanical ventilatory support at the time of their study. There was good agreement between the emergency physician (EP) and the PEP for estimation of SF (r = 0.78). The mean difference in the estimate of SF between the providers was 4.4% (95% confidence interval: 1.6%-7.2%). This difference in estimate of SF was statistically significant. Similarly, there was good agreement between the EP and the PEP for estimation of IVC volume (r = 0.8). The mean difference in the estimate of IVC diameter by the PEP and the EP was 0.068 mm (95% confidence interval: -0.16 to 0.025 mm). This difference was not statistically significant. CONCLUSIONS: Our study suggests that PEP sonographers are capable of obtaining images that permit accurate assessment of LVF and IVC volume. BLEEP can be performed with focused training and oversight by a pediatric cardiologist.

Adolescent↗

PubMed2004

Plasma coagulation markers in patients with solid tumors and venous thromboembolic disease receiving oral anticoagulation therapy.

PURPOSE: To correlate the concentration of plasma coagulation markers at baseline and during follow-up in patients with solid tumors and venous thromboembolic disease with the risk of recurrence and death. EXPERIMENTAL DESIGN: Patients (N = 223) with first episode of venous thromboembolic disease received oral anticoagulation with warfarin for a target international normalized ratio of 2 to 3. Plasma coagulation markers were measured before instituting warfarin and at 3 monthly intervals, thereafter. RESULTS: The median duration of oral anticoagulation was 6.7 months (range 2 weeks to 11 months). Major bleeding episodes occurred in 18 patients (8%), and minor hemorrhagic events occurred in 15 (6.7%) patients. Patients with advanced malignancy (P = 0.032), history of surgery (P = 0.057), and those with poor performance status (P = 0.001) were more likely to encounter major bleeding episodes. Recurrence of venous thromboembolic disease was diagnosed in 31 patients (14%). At univariate analysis, advanced stage of cancer (P = 0.03), performance status > 1 (P = 0.001), treatment with chemotherapy (P = 0.01), the presence of metastatic liver disease (P = 0.03), higher d-dimer (P = 0.001), and thrombin antithrombin complex levels (P = 0.01) were features predictive of recurrent venous thromboembolic disease. At multivariate analysis, poor performance status (P = 0.01) and d-dimer levels (P = 0.001) were predictors of recurrent venous thromboembolic disease. Persistent activation of coagulation as indicated by an upward trend in d-dimer (P = 0.001) and antithrombin (P = 0.001) was observed in patients who developed recurrent thrombosis. Similar upward trends in d-dimer (P = 0.001), antithrombin (P = 0.001), and prothrombin fragment F1 + 2 (P = 0.001) was observed in the 76 patients who died during the study period and in the patients who received chemotherapy. CONCLUSIONS: Successful oral anticoagulation with warfarin in patients with cancer and venous thromboembolic disease is more likely to be achieved in patients with early stage tumors and good performance status. The persistence of activation of hemostasis as shown by plasma coagulation markers is a strong predictor of recurrence and poor outcome.

Administration, Oral↗

PubMed2004

Intra-arterial cisplatin and concomitant radiation therapy followed by surgery for advanced paranasal sinus cancer.

OBJECTIVE: To report the long-term efficacy of a combined regimen of intra-arterial high-dose cisplatin chemotherapy and concomitant radiation therapy followed by organ-sparing surgery when possible in the treatment of advanced paranasal sinus cancer. DESIGN: Review of prospectively collected data. SETTING: Academic referral center. Patients Nineteen patients with advanced paranasal sinus malignancies with a minimum follow-up of 2 years. Malignancies included 14 squamous cell carcinomas (74%), 2 adenocarcinomas (10%), 2 adenoid cystic carcinomas (10%), and 1 undifferentiated carcinoma (5%). Sixteen patients (84%) had T4 disease. Intervention Treatment consisted of preoperative radiation therapy (2.0 Gy/fraction per day; total dose, 50 Gy in 5 weeks) given concomitantly with 3 to 4 weekly infusions of intra-arterial cisplatin (150 mg/m(2) per week) and systemic sodium thiosulfate neutralization. The regimen included planned surgery performed approximately 8 weeks after completion of radiation therapy. Ten patients underwent a transcranial anterior craniofacial resection; 1, a medial maxillectomy; and 1, an endoscopic restaging only. RESULTS: After a median follow-up of 53 months, actuarial overall survival at 2 and 5 years was 68% and 53%, respectively. One patient died of myocardial infarction during treatment. No other treatment-limiting toxic effect was noted. Although 3 patients had persistence of disease, delayed local failure occurred only in 2 and distant metastasis in 3. Except for cataract in 2 patients, no visual loss developed. CONCLUSION: Despite the advanced stage and unfavorable nature of cancer in this cohort, our results indicate that this regimen holds promise and merits further study.

Antineoplastic Agents↗

PubMed2002

A new monophasic oral contraceptive containing drospirenone. Effect on premenstrual symptoms.

OBJECTIVE: To determine whether a new monophasic oral contraceptive containing drospirenone/ethinyl estradiol reduces premenstrual symptoms. STUDY DESIGN: In an open-label study measuring intrasubject changes in premenstrual symptoms and comparing effects between women who were new users of oral contraceptives and those who switched from previous contraceptives, ethinyl estradiol (30 micrograms) and drospirenone (3 mg) were administered for 13 menstrual cycles to 326 healthy women aged 18-35 years. Subjects completed the 23-item Women's Health Assessment Questionnaire at baseline and at the end of the sixth cycle. RESULTS: At the end of cycle 6, premenstrual and menstrual symptom scores on the negative affect and water retention scales were reduced significantly relative to baseline, as was increased appetite during the premenstrual and menstrual phases. Similar improvements were seen among new users of hormonal contraceptives and those who switched from previous contraceptives. Impaired concentration scale scores were not significantly reduced from baseline, and assessments of undesired hair changes and feelings of well-being did not change appreciably. CONCLUSION: An oral contraceptive containing drospirenone/ethinyl estradiol may reduce the premenstrual symptoms of negative affect, water retention and increased appetite.

Adolescent↗

PubMedDate not supplied

Axillary block for analgesia during manipulation of forearm fractures in the pediatric emergency department a prospective randomized comparative trial.

Our objective was to compare procedural distress during manipulation of forearm fractures in children receiving either axillary (brachial plexus) block regional anesthesia (20 children) or deep sedation with ketamine and midazolam (21 children). This was a prospective randomized unmasked controlled comparative trial conducted in an urban children's hospital emergency department. The 2 groups were similar in age (older than 8 years), fracture types, initial pain scores, narcotic analgesia received, and midazolam doses before fracture manipulation. The primary outcome measure was procedural distress during manipulation as measured with the Children's Hospital of Eastern Ontario Pain Scale (CHEOPS). The mean CHEOPS score was 6.4 +/- 2.8 in the group with axillary block and 7.5 +/- 1.6 in those receiving deep sedation; the difference between the CHEOPS scores in the 2 groups was not statistically significant (P = 0.126, 95% CI: 2.5, 0.3). Axillary block was used successfully in 18 (90%) of the 20 children. No patient in either group experienced any adverse events.

Analgesia↗