1,676 results match your criteria: "Kaiser-Permanente Medical Center[Affiliation]"

Image-guided Epidural Blood Patching and Fibrin Glue Occlusion of Cerebrospinal Fluid Leaks and Venous Fistulas.

Neuroimaging Clin N Am

February 2025

Department of Radiology, The Permanente Medical Group, Kaiser Permanente Medical Center, Santa Clara, 700 Lawrence Expy, Santa Clara, CA 95051, USA; Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Avenue, San Francisco, CA 94143, USA. Electronic address:

There have been major advances in the diagnosis and treatment of spontaneous intracranial hypotension (SIH). While once thought to be a rare condition, the occurrence is not uncommon if diagnosed adequately. Our greater understanding of SIH is based on three main points: (1) awareness of the various types of spontaneous spinal cerebrospinal fluid (CSF) leaks; (2) advanced myelography with the precision to detect dural tears and CSF-venous fistulas; and (3) updated treatment techniques of epidural patching, embolization, and surgery.

View Article and Find Full Text PDF

Gastric volvulus is a rare and potentially life-threatening condition that usually presents acutely and requires immediate intervention via either endoscopic or surgical detorsion. Most often, it presents secondary to a hiatal hernia, with herniation and torsion of the stomach through the hiatus. Only a small subset of patients present with gastric volvulus after Nissen fundoplication for hiatal hernia repair.

View Article and Find Full Text PDF

Background: We developed a high-intensity parenting intervention (HIP) to help parents support the academic success of childhood cancer survivors (CCSs), who often face post-treatment challenges affecting their school-related functioning. This randomized controlled trial (NCT03178617) evaluated HIP's efficacy compared to lower-intensity, single-session, treatment-as-usual services (LIP) in Latino families. Primary outcomes were parenting efficacy and CCSs' school functioning; secondary outcomes included parenting knowledge and measures of CCSs' academic performance, attention, and functioning outside of school.

View Article and Find Full Text PDF

Comparison of 6 handheld ultrasound devices by point-of-care ultrasound experts: a cross-sectional study.

Ultrasound J

October 2024

Division of Hospital Medicine, Joe R. Teresa Lozano Long School of Medicine, University of Texas Health San Antonio, 7703 Floyd Curl Drive, MC 7885, San Antonio, Texas, 78229, USA.

Background: Point-of-care ultrasound (POCUS) has emerged as an essential bedside tool for clinicians, but lack of access to ultrasound equipment has been a top barrier to POCUS use. Recently, several handheld ultrasound devices ("handhelds") have become available, and clinicians are seeking data to guide purchasing decisions. Few comparative studies of different handhelds have been done.

View Article and Find Full Text PDF
Article Synopsis
  • Systemic mastocytosis (SM) is a rare disease affecting about 32,000 people in the U.S., often misdiagnosed due to vague symptoms and the necessity for invasive tests.
  • A study of 116 patients revealed that the majority had indolent SM, with a significant average delay of 58.3 months for diagnosis, and some patients progressed to more advanced forms.
  • The findings emphasize the need for better awareness and understanding of SM to improve diagnosis and treatment, suggesting that further studies are necessary to establish effective follow-up care for patients.
View Article and Find Full Text PDF

A comprehensive definition of health includes the assessment of patient experiences of a disease and its treatment. These patient experiences are best captured by standardized patient-reported outcome (PRO) instruments. A PRO is reported directly by the patient (or caregiver) and provides the patient's perspective into how a disease and its treatment impact their lives.

View Article and Find Full Text PDF

Spontaneous Intracranial Hypotension Associated with Vascular Malformations.

AJNR Am J Neuroradiol

January 2025

Department of Radiology and Biomedical Imaging (M.D.M., W.P.D.), University of California, San Francisco, San Francisco, California.

Spinal CSF leaks from dural tears or CSF-venous fistulas are the most common causes of spontaneous intracranial hypotension. Rarely, CSF leaks have also been associated with vascular malformations, which have primarily been discussed in case reports or small series. In this clinical report, we report the clinical features, imaging findings, and treatment of 6 children and adults with CSF leaks associated with vascular malformations in the spine and skull base depicted on CT myelography and cisternography.

View Article and Find Full Text PDF

Background And Aims: Demand for surveillance colonoscopy can sometimes exceed capacity, such as during and following the coronavirus disease 2019 pandemic, yet no tools exist to prioritize the patients most likely to be diagnosed with colorectal cancer (CRC) among those awaiting surveillance colonoscopy. We developed a multivariable prediction model for CRC at surveillance comparing performance to a model that assigned patients as low or high risk based solely on polyp characteristics (guideline-based model).

Methods: Logistic regression was used for model development among patients receiving surveillance colonoscopy in 2014-2019.

View Article and Find Full Text PDF

Purpose: The National Comprehensive Cancer Network (NCCN) guidelines recommend a variety of drug combinations with specific administration schedules for the treatment of early-stage breast cancer, allowing physicians to deliver treatments recognizing individual patient complexities, including comorbidities, and patient-physician preference. While use of guideline regimens has shifted over time, there is little data to describe changes in how treatment for early-stage breast cancer has evolved over time.

Methods: In a cohort of 34,109 women treated for stage I-IIIA breast cancer between 2006-2019 at Kaiser Permanente Northern California and Kaiser Permanente Washington, we present the changes in chemotherapy regimens over time, and explore use of NCCN-guideline regimens (GR), guideline regimens used when said regimens were not included in guidelines, referred to as time-discordant regimens (TDR), and non-guideline regimens (NGR).

View Article and Find Full Text PDF

Background: Telerehabilitation, or the delivery of rehabilitation services through telehealth platforms, has existed since the late 1990 s. Telerehabilitation was characterized by unprecedented, exponential growth at the beginning of the novel coronavirus-2019 (COVID-19) pandemic. Medical systems sought to reduce the likelihood of disease transmission by using telerehabilitation to limit physical proximity during routine care.

View Article and Find Full Text PDF

Aim: Routine alcohol testing of practicing physicians remains controversial since there are no uniform guidelines or legal regulations in the medical field. Our aim was to quantitatively study the acute and next-morning effects of breath alcohol concentration (BAC)-adjusted alcohol intake on overall simulated surgical performance and microtremor among senior vitreoretinal surgeons.

Methods: This prospective cohort study included 11 vitreoretinal surgeons (>10 years practice).

View Article and Find Full Text PDF

Background: Guidelines informing chemotherapy regimen selection are based on clinical trials with participants who do not necessarily represent general populations with breast cancer. Understanding who receives nonguideline regimens is important for understanding real-world chemotherapy administration and how it relates to patient outcomes.

Methods: Using data from the Optimal Breast Cancer Chemotherapy Dosing (OBCD) study, based at Kaiser Permanente Northern California (2006-2019) and Kaiser Permanente Washington (2004-2015), we use logistic regression to examine the associations between patient characteristics and receipt of nonguideline chemotherapy regimens among 11,293 women with primary stage I to IIIA breast cancer receiving chemotherapy.

View Article and Find Full Text PDF

Epidemiology of Mpox Cases, and Tecovirimat and JYNNEOS Utilization, Alameda County, California, June-October 2022.

J Public Health Manag Pract

July 2024

Division of Communicable Disease Control and Prevention, Alameda County Public Health Department, San Leandro, California (Drs Ouyang, Trivedi, Yette, Dunne, and Chitnis, Mss Marusinec, Peña, Shemsu, and Sheppard, and Messrs Johnson, Menker, and Moore); Alameda County Health Care Services Agency, San Leandro, California (Dr Moss); Office of Public Health Director, Alameda County Public Health Department, San Leandro, California (Dr Ayala); La Clínica de La Raza, Oakland, California (Dr Bayard); LifeLong Medical Care, Oakland, California (Dr Edmunds); Alameda Health System, Oakland, California (Dr Lai); Asian Health Services, Oakland, California (Dr Nguyen); Kaiser Permanente Medical Center, Oakland, California (Dr Rajagopal); Bay Area Community Health, Fremont, California (Dr Slome); and East Bay Advanced Care, Alta Bates Summit Medical Center, Sutter Health, Oakland, California (Dr Tang).George Ayala and Amit Chitnis are senior co-authors.Current affiliation of Dr Megan Ouyang is County of Santa Clara Public Health Department, San Jose, California.Current affiliation of Ms April Peña is San Francisco Department of Public Health, San Francisco, California.

Context: The 2022 United States mpox outbreak disproportionately affected racial and ethnic minority gay, bisexual, and other men who have sex with men.

Program: We utilized surveillance data and vaccination registries to determine whether populations most impacted by mpox in Alameda County received JYNNEOS vaccines and tecovirimat (TPOXX) during June 1-October 31, 2022.

Implementation: Alameda County Public Health Department responded to the mpox epidemic through partnerships with local health care providers who serve communities disproportionately affected by mpox.

View Article and Find Full Text PDF
Article Synopsis
  • * A study analyzed 34,109 women with early-stage breast cancer to identify factors causing delays in chemotherapy initiation post-diagnosis and surgery, finding that about 21% of patients faced such delays.
  • * Factors linked to increased delays included older age and being non-Hispanic Black or Hispanic, while those diagnosed more recently or with larger tumors were less likely to experience delays, indicating various influences beyond patient demographics that need to be addressed.
View Article and Find Full Text PDF

Revised Diagnosis From Histiocytic Neoplasm to Optic Chiasm Glioblastoma After Genetic Analysis.

J Neuroophthalmol

December 2024

Departments of Ophthalmology (MMM, MP, JCH, MHL) and Radiology and Biomedical Imaging (MDM), University of California San Francisco, San Francisco, California; Division of Neuropathology (MP), Department of Pathology, University of California San Francisco, San Francisco, California; and Department of Radiology (MDM), The Permanente Medical Group, Kaiser Permanente Medical Center, Santa Clara, California.

A 46-year-old man presented with left eye blurring. Automated visual field testing showed an incongruous right hemianopia, with sparing of the lower temporal quadrant in the right eye. MRI revealed foci of gadolinium enhancement in the optic chiasm and optic tracts.

View Article and Find Full Text PDF

Trends in chemotherapy use for early-stage breast cancer from 2006 to 2019.

Breast Cancer Res

June 2024

Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, 633 Third Avenue 3rd Floor, 10017, New York, NY, USA.

Background: Little is known about how use of chemotherapy has evolved in breast cancer patients. We therefore describe chemotherapy patterns for women with stage I-IIIA breast cancer in the Optimal Breast Cancer Chemotherapy Dosing (OBCD) Study using data from KPNC (Kaiser Permanente Northern California) and KPWA (Kaiser Permanente Washington).

Findings: Among 33,670 women, aged 18 + y, diagnosed with primary stage I-IIIA breast cancer at KPNC and KPWA from 2006 to 2019, we explored patterns of intravenous chemotherapy use, defined here as receipt of intravenous cytotoxic drugs and/or anti-HER2 therapies.

View Article and Find Full Text PDF

Emergency Department Referral of Patients With Chest Pain for Noninvasive Cardiac Testing and 2-Year Clinical Outcomes.

Circ Cardiovasc Qual Outcomes

June 2024

Division of Research, Kaiser Permanente Northern California, Oakland (D.G.M., J.H., D.W.B., D.R.V., J.S.R., D.R.S., A.S.R., M.E.R.).

Background: Noninvasive cardiac testing (NICT) has been associated with decreased long-term risks of major adverse cardiac events (MACEs) among emergency department patients at high coronary risk. It is unclear whether this association extends to patients without evidence of myocardial injury on initial ECG and cardiac troponin testing.

Methods: A retrospective cohort study was conducted of patients presenting with chest pain between 2013 and 2019 to 21 emergency departments within an integrated health care system in Northern California, excluding patients with ST-segment-elevation myocardial infarction or myocardial injury by serum troponin testing.

View Article and Find Full Text PDF

Background/objective: Multilevel barriers to colonoscopy after a positive fecal blood test for colorectal cancer (CRC) are well-documented. A less-explored barrier to appropriate follow-up is repeat fecal testing after a positive test. We investigated this phenomenon using mixed methods.

View Article and Find Full Text PDF

Background: Diabetes is the strongest risk factor for cardiovascular disease, and although glycosylated hemoglobin (HbA1c) levels are known to vary by race, no racial and ethnic-specific diagnostic thresholds exist for diabetes in prediction of cardiovascular disease events. The purpose of this study is to determine whether HbA1c thresholds for predicting major adverse cardiovascular events (MACEs) differ among racial and ethnic groups.

Methods And Results: This is a retrospective cohort study of Kaiser Permanente Northern California adult members (n=309 636) with no history of cardiovascular disease who had HbA1c values and race and ethnicity data available between 2014 and 2019.

View Article and Find Full Text PDF

Objectives: Acute pancreatitis (AP) is a complex disease representing a significant portion of gastrointestinal-related hospitalizations in the U.S. Understanding risk factors of AP might provide attractive therapeutic targets.

View Article and Find Full Text PDF

Shifts in Diagnostic Testing for Headache in the Emergency Department, 2015 to 2021.

JAMA Netw Open

April 2024

Division of Research, Kaiser Permanente Northern California, Oakland.

Importance: Subarachnoid hemorrhage is typically diagnosed by noncontrast head computed tomography (CT); lumbar puncture is recommended if computed tomography is nondiagnostic, although CT cerebral angiography has been promoted as an alternative to lumbar puncture in this diagnostic pathway. The outcomes of this debate in practice have not been studied.

Objective: To determine whether CT cerebral angiography use has increased in lieu of lumbar puncture among emergency department (ED) patients with headache, with an increase in unruptured intracranial aneurysm detection.

View Article and Find Full Text PDF

Purpose: Identification of patients' intended chemotherapy regimens is critical to most research questions conducted in the real-world setting of cancer care. Yet, these data are not routinely available in electronic health records (EHRs) at the specificity required to address these questions. We developed a methodology to identify patients' intended regimens from EHR data in the Optimal Breast Cancer Chemotherapy Dosing (OBCD) study.

View Article and Find Full Text PDF