Computed tomography texture analysis for assessment of chemotherapy response of Hodgkin lymphoma.

The aim of this study was to test the hypothesis that computed tomography texture analysis (CTTA) is accurate for response assessment of Hodgkin lymphoma (HL).A total of 100 patients with HL were identified. CTTA in baseline and interim staging was performed generating volume of interests in lymphoma tissue from which CTTA features including 1st, 2nd, and higher order textural features were extracted.

Geriatric rehabilitation and resilience from a cultural perspective.

Resiliency is a key aspect to aging successfully. Promoting healthy lifestyles, strong social bonds, enhancements to one's environment, accessibility to quality care and rehabilitation are critical in a positive aging experience. Issues of personal, social, medical, and rehabilitative care are addressed in the context of resiliency from a cultural perspective.

The pattern of tibial nerve excursion with active ankle dorsiflexion is different in older people with diabetes mellitus.

Background: The peripheral nervous system has an inherent capability to tolerate the gliding (excursion), stretching (increased strain), and compression associated with limb motions necessary for functional activities. The biomechanical properties during joint movements are well studied but the influence of other factors such as limb pre-positioning, age and the effects of diabetes mellitus are not well established for the lower extremity. The purposes of this pilot study were to compare the impact of two different hip positions on lower extremity nerve biomechanics during an active ankle dorsiflexion motion in healthy individuals and to determine whether nerve biomechanics are altered in older individuals with diabetes mellitus.

Mechanosensitivity during lower extremity neurodynamic testing is diminished in individuals with Type 2 Diabetes Mellitus and peripheral neuropathy: a cross sectional study.

Background: Type 2 Diabetes Mellitus (T2DM) and diabetic symmetrical polyneuropathy (DSP) impact multiple modalities of sensation including light touch, temperature, position sense and vibration perception. No study to date has examined the mechanosensitivity of peripheral nerves during limb movement in this population. The objective was to determine the unique effects T2DM and DSP have on nerve mechanosensitivity in the lower extremity.

Age-related hyperkyphosis: its causes, consequences, and management.

Synopsis: Age-related hyperkyphosis is an exaggerated anterior curvature in the thoracic spine that occurs commonly with advanced age. This condition is associated with low bone mass, vertebral compression fractures, and degenerative disc disease, and contributes to difficulty performing activities of daily living and decline in physical performance. While there are effective treatments, currently there are no public health approaches to prevent hyperkyphosis among older adults.

Predictors of occult nodal metastasis in patients with thin melanoma.

Hypothesis: Thin primary lesions are largely responsible for the rapid increase in melanoma incidence, making identification of appropriate candidates for nodal staging in this group critically important. We hypothesized that common clinical variables may accurately estimate the risk of nodal metastasis after wide excision and determine the need for sentinel node biopsy.

Design: Review of prospectively acquired data in a large melanoma database.

Mechanosensitivity of the lower extremity nervous system during straight-leg raise neurodynamic testing in healthy individuals.

Study Design: Cross-sectional, observational study.

Objectives: To explore how ankle position affects lower extremity neurodynamic testing.

Background: Upper extremity limb movements that increase neural loading create a protective muscle action of the upper trapezius, resulting in shoulder girdle elevation during neurodynamic testing.

Improved survival for stage IV melanoma from an unknown primary site.

PURPOSE We previously demonstrated a survival advantage for nodal metastasis of melanoma from an unknown primary (MUP) versus melanoma from a known primary (MKP). We hypothesized that this survival benefit would extend to MUP patients with distant (stage IV) metastasis. PATIENTS AND METHODS We reviewed prospectively acquired data for 2,247 patients diagnosed with American Joint Committee on Cancer stage IV melanoma at our cancer center between 1971 and 2005.

Improved survival after lymphadenectomy for nodal metastasis from an unknown primary melanoma.

Purpose: No primary lesion is identified in 10% to 20% of patients presenting with palpable evidence of regional metastatic melanoma. Because the prognostic significance of unknown primary melanoma (MUP) is unclear, we compared clinical outcomes of patients with MUP and known primary melanoma (MKP) with regional nodal metastases.

Patients And Methods: We reviewed our 13,000-patient prospective melanoma database (1971 through 2005) to identify patients managed with regional lymphadenectomy for palpable nodal metastases from MUP or MKP.

Changes in flexed posture, musculoskeletal impairments, and physical performance after group exercise in community-dwelling older women.

Objective: To determine whether improvements in flexed posture, strength, range of motion (ROM), and physical performance would be observed after 12 weeks of group exercise in older women who because of age are prone to flexed posture and impaired physical function.

Design: Pretest-posttest of outcome measures.

Setting: Outpatient academic medical center.

Surgical management of the groin lymph nodes in melanoma in the era of sentinel lymph node dissection.

Hypothesis: Intraoperative lymphatic mapping and sentinel lymphadenectomy (LM/SL) has become an increasingly popular surgical technique for staging the regional lymph nodes in early-stage melanoma. The technique of LM/SL has potentially great advantage for the groin, where the morbidity of superficial groin dissection or iliac dissection can be high. The surgical management of these basins is unknown for patients with tumor-positive sentinel lymph nodes (SNs).

Can surgical therapy alone achieve long-term cure of melanoma metastatic to regional nodes?

Background: Anecdotal reports of melanoma recurrence 15 years after complete lymphadenectomy have led to claims that the onset of nodal metastasis invariably signals systemic metastases and a terminal diagnosis. Few series in the literature are able to refute this assertion. We therefore examined rates of long-term (> 15-25 years) survival for patients with regional (nodal) melanoma.

Sentinel lymphadenectomy does not increase the incidence of in-transit metastases in primary melanoma.

Purpose: Recent reports by European investigators suggest that sentinel lymphadenectomy (SLND), a mainstay of melanoma diagnosis and treatment planning, increases the risk of in-transit metastasis (ITM) and should be abandoned. This study compared the incidence of ITM after wide local excision (WLE), WLE plus SLND (SLND), or WLE plus elective lymphadenectomy (ELND) for primary melanoma.

Patients And Methods: Review of our prospective database identified 4,412 patients who underwent WLE (n = 2,771), SLND (n = 1,016), or ELND (n = 625) for stage I/II melanoma (1971 through 2002).

Contemporary surgical treatment of advanced-stage melanoma.

Hypothesis: The clinical treatment of patients with stage IV melanoma according to criteria of the American Joint Committee on Cancer (AJCC) is controversial because the 5-year survival rate is approximately 5%. Specific clinicopathologic factors are predictive of survival following curative surgery.

Design: Cohort analysis of 1574 successive patients undergoing surgical resection of metastatic melanoma for a 29-year period.

Factors predictive of tumor-positive nonsentinel lymph nodes after tumor-positive sentinel lymph node dissection for melanoma.

Purpose: Approximately 20% of sentinel node (SN) positive melanoma patients have additional non-SN (NSN) metastasis. The rationale for this study was to identify the factors associated with additional nodal disease, as a method to determine which patients may most benefit from completion lymph node dissection (CLND).

Patients And Methods: During 1990 to 2002, 1,599 patients have undergone SN biopsy at our institute.

Endogenous immune response to early- and intermediate-stage melanoma is correlated with outcomes and is independent of locoregional relapse and standard prognostic factors.

Background: Standard prognostic factors, including precise staging of the regional lymph nodes, cannot accurately determine which early-stage melanomas will metastasize. The immune response to a 90-kd tumor-associated antigen correlates with occult nodal disease and survival of patients receiving vaccine therapy for melanoma. We hypothesized that this response might have prognostic significance independent of standard prognostic features.

Is sentinel lymph node mapping indicated for isolated local and in-transit recurrent melanoma?

Objective: To determine the feasibility of sentinel lymph node mapping in local and in-transit recurrent melanoma.

Summary Background Data: The accuracy of intraoperative lymphatic mapping and sentinel lymphadenectomy (LM/SL) for identification of occult lymph node metastases is well established in primary melanoma. We hypothesized that LM/SL could be useful to detect regional node metastases in patients with isolated local and in-transit recurrent melanoma (RM).

Lymphatic mapping and sentinel lymphadenectomy for early-stage melanoma: therapeutic utility and implications of nodal microanatomy and molecular staging for improving the accuracy of detection of nodal micrometastases.

Objective: Lymphatic mapping and sentinel lymphadenectomy (LM/SL) have been applied to virtually all solid neoplasms since our original description of LM/SL for melanoma. Our objectives were to determine the diagnostic and therapeutic utility of LM/SL, investigate carbon dye for mapping the microanatomy of lymphatic flow within the sentinel node (SN), and determine the prognostic accuracy of molecular assessment of the SN.

Methods: Since 1985, 1599 patients with AJCC Stage I/II melanoma have been treated by LM/SL at our institution and 4590 have been treated by wide excision (WE) without nodal staging.

Role of sentinel lymphadenectomy in thin invasive cutaneous melanomas.

Purpose: Regional lymph node status is the strongest prognostic determinant in early-stage melanoma. Lymphatic mapping and sentinel lymphadenectomy (LM/SL) is standard to stage regional nodes because it is accurate and minimally morbid, yet its role for thin ( View Article and Find Full Text PDF

Prognostic implications of thick (>or=4-mm) melanoma in the era of intraoperative lymphatic mapping and sentinel lymphadenectomy.

Background: Lymphatic mapping/sentinel lymphadenectomy (LM/SL) has become a routine part of our treatment algorithm for primary melanoma, yet its role in the management of thick (>or=4-mm) lesions is unknown.

Methods: One hundred twenty-one patients with thick primaries underwent LM/SL at our institute. Survival curves were constructed from Kaplan-Meier estimates and analyzed by Cox proportional hazards methods.

Prolonged survival of patients receiving active immunotherapy with Canvaxin therapeutic polyvalent vaccine after complete resection of melanoma metastatic to regional lymph nodes.

Objective: To determine whether adjuvant postoperative active specific immunotherapy with a therapeutic polyvalent vaccine (PV) called Canvaxin can prolong survival following complete resection of melanoma metastatic to regional nodes (American Joint Committee on Cancer [AJCC] stage III melanoma).

Summary Background Data: Despite complete lymphadenectomy, 5-year overall survival (OS) for patients with melanoma metastatic to regional lymph nodes is only 20% to 50%, depending on the number of tumor-involved nodes. In 1984, the authors began phase II trials of Canvaxin PV as postsurgical adjuvant therapy for AJCC stage III melanoma.

Enhanced humoral immune response correlates with improved disease-free and overall survival in American Joint Committee on Cancer stage II melanoma patients receiving adjuvant polyvalent vaccine.

Purpose: Although the improved overall survival (OS) of patients who receive Canvaxin (CancerVax Corp, Carlsbad, CA) polyvalent vaccine (PV) immunotherapy for metastatic melanoma has been correlated with cellular and humoral immune responses, the mechanisms of vaccine immunotherapy for early-stage melanoma are unclear. Specific immune responses to tumor-associated antigens might correlate with disease-free survival (DFS) and OS in patients receiving adjuvant PV therapy for primary melanoma.

Patients And Methods: Eighty-three patients received PV plus bacille Calmette-Guérin after wide excision of American Joint Committee on Cancer stage II melanoma.

Does complete resection of melanoma metastatic to solid intra-abdominal organs improve survival?

Background: Patients with distant melanoma metastases have median survivals of 4 to 8 months. Previous studies have demonstrated improved survival after complete resection of pulmonary and hollow viscus gastrointestinal metastases. We hypothesized that patients with metastatic disease to intra-abdominal solid organs might also benefit from complete surgical resection.

Surgical resection for metastatic melanoma to the liver: the John Wayne Cancer Institute and Sydney Melanoma Unit experience.

Hypothesis: Metastatic melanoma to the liver is not incurable; complete surgical resection can achieve long-term survival in selected patients.

Background: Metastases to the liver are diagnosed in 10% to 20% of patients with American Joint Committee on Cancer stage IV melanoma. Surgical resection has not been generally accepted as a therapeutic option, as most patients will have other sites of disease that limit their survival to a median of only 4 to 6 months.