Alexander Hawkins

Dr. Alexander Hawkins


Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2020 in Current Problems in Surgery
Verified
Journal Article
Closed access
AHAlexander Hawkins
Alexander Hawkins
PWPaul E. Wise
Paul E. Wise
TCTiffany Chan
Tiffany Chan
JLJanet T. Lee
Janet T. Lee
TGTamara Glyn
Tamara Glyn
ALAmy L. Lightner
Amy L. Lightner

16 April 2018 in Journal of Gastrointestinal Surgery
Verified
Journal Article
Closed access
PDF file
AHAlexander Hawkins
Alexander Hawkins
KAKatherine Albutt
Katherine Albutt
PWPaul E. Wise
Paul E. Wise
KAKarim Alavi
Karim Alavi
RSRanjan Sudan
Ranjan Sudan
OSon behalf of the Continuing Education Committee of the SSAT
on behalf of the Continuing Education Committee of the SSAT

1 January 2016 in Diseases of the Colon & Rectum
Verified
Journal Article
Closed access
AHAlexander Hawkins
Alexander Hawkins
AOAdriana G. Olariu
Adriana G. Olariu
LSLieba R. Savitt
Lieba R. Savitt
SGShalini Gingipally
Shalini Gingipally
MWMay M. Wakamatsu
May M. Wakamatsu
LBLiliana Bordeianou
Liliana Bordeianou
A theory of rectal intussusception has been advanced that intrarectal intussusception, intra-anal intussusception, and external rectal prolapse are points on a continuum and are a cause of fecal incontinence and constipation. This study evaluates the association among rectal intussusception, constipation, fecal incontinence, and anorectal manometry. Patients undergoing defecography were studied from a prospectively maintained database and classified according to the Oxford Rectal Prolapse Grade as normal or having intra-rectal, intra-anal, or external intussusception. Patient symptoms were assessed using the Constipation Severity Index and the Fecal Incontinence Severity Index. Quality-of-life surveys were also used. Patients also underwent anorectal manometry. The study was conducted at a tertiary care university medical center (Massachusetts General Hospital). The study included 147 consecutive patients undergoing evaluation for evacuatory dysfunction and involved defecography, symptoms questionnaires, and anorectal physiology testing from January 2011 to December 2013. Symptom severity and quality-of-life scores were measured, as well as anal manometry results. Increasing Oxford grade was associated with an increase in severity of fecal incontinence (median score: normal = 23.9, intrarectal = 21.0, intra-anal = 30.0, external prolapse = 35.3; β = 4.71; p = 0.009), which persisted in a multivariable model including age (β = 2.13; p = 0.03), and decreased sphincter pressures (median mean resting pressure: normal = 75.4, intra-rectal = 69.7, intra-anal = 64.3, external prolapse = 48.3; β = -8.57; p = 0.003), which did not persist in a multivariable model. Constipation severity did not increase with rising intussusception (mean score: normal = 37.4, intrarectal = 35.0, intra-anal = 41.4, external prolapse = 32.9; p = 0.79), and balloon expulsion improved rather than worsened (normal = 47.1%, intrarectal = 60.5%, intra-anal = 82.9%, external prolapse = 93.1%; p < 0.001). The study was limited because it was an observational study from a single center. Increasing grades of rectal intussusception are associated with increasing fecal incontinence but not constipation.

1 April 2014 in Annals of Vascular Surgery
Verified
Journal Article
Closed access
AHAlexander Hawkins
Alexander Hawkins
AHAntonia J. Henry
Antonia J. Henry
DCDavid M. Crandell
David M. Crandell
LNLouis L. Nguyen
Louis L. Nguyen

1 April 2019 in Anesthesia & Analgesia
Verified
Journal Article
Closed access
BRBritany L. Raymond
Britany L. Raymond
JWJonathan P. Wanderer
Jonathan P. Wanderer
AHAlexander Hawkins
Alexander Hawkins
TGTimothy M. Geiger
Timothy M. Geiger
JEJesse M. Ehrenfeld
Jesse M. Ehrenfeld
MMMatthew D. McEvoy
Matthew D. McEvoy
BACKGROUND: The American College of Surgeons (ACS) National Surgical Quality Improvement Program Surgical Risk Calculator (ACS Calculator) provides empirically derived, patient-specific risks for common adverse perioperative outcomes. The ACS Calculator is promoted as a tool to improve shared decision-making and informed consent for patients undergoing elective operations. However, to our knowledge, no data exist regarding the use of this tool in actual preoperative risk discussions with patients. Accordingly, we performed a survey to assess (1) whether patients find the tool easy to interpret, (2) how accurately patients can predict their surgical risks, and (3) the impact of risk disclosure on levels of anxiety and future motivations to decrease personal risk. METHODS: Patients (N = 150) recruited from a preoperative clinic completed an initial survey where they estimated their hospital length of stay and personal perioperative risks of the 12 clinical complications analyzed by the ACS Calculator. Next, risk calculation was performed by entering participants’ demographics into the ACS Calculator. Participants reviewed their individualized risk reports in detail and then completed a follow-up survey to evaluate their perceptions. RESULTS: Nearly 90% of participants desire to review their ACS Calculator report before future surgical consents. High-risk patients were 3 times more likely to underestimate their risk of any complication, serious complication, and length of stay compared to low-risk patients (P < .001). After reviewing their calculated risks, 70% stated that they would consider participating in prehabilitation to decrease perioperative risk, and nearly 40% would delay their surgery to do so. Knowledge of personal ACS risk calculations had no effect on anxiety in 20% and decreased anxiety in 71% of participants. CONCLUSIONS: The ACS Calculator may be of particular benefit to high-risk surgical populations by providing realistic expectations of outcomes and recovery. Use of this tool may also provide motivation for patients to participate in risk reduction strategies.

10 May 2007 in BMC Infectious Diseases
Verified
Journal Article
Open access
PDF file
PKPeter R Kisenge
Peter R Kisenge
AHAlexander Hawkins
Alexander Hawkins
VMVenance P Maro
Venance P Maro
JMJohn Pd Mchele
John Pd Mchele
NSNdealilia S Swai
Ndealilia S Swai
EHEric R Houpt
Eric R Houpt
Background: Largely due to the lack of diagnostic reagents, the prevalence and clinical presentation of cryptococcal meningitis in Tanzania is poorly understood. This in turn is limiting the impact of increased fluconazole availability. Methods: We evaluated a cohort of 149 consecutive HIV-infected adult inpatients presenting with headache or altered mental status for clinical features, CD4 count, cryptococcal infection, and outcome. Cryptococcal meningitis was diagnosed via India ink and latex agglutination assay of CSF (n = 24 and 40 positive, respectively). Associations between cryptococcal meningitis and clinical features were evaluated by t-test. The sensitivity, specificity, and positive likelihood ratio of such features were determined. Results: Cryptococcal meningitis was associated with confusion, social withdrawal, seizures, fever, tachycardia, meningismus, oral candidiasis, and low Glasgow coma scales and CD4 count. CD4 count < 100/μl provided the highest sensitivity for the diagnosis (93%), coma (Glasgow coma scale ≤ 8) provided the highest specificity (84%), and the combination provided the highest positive likelihood ratio (3.8). All cryptococcal meningitis patients were initiated on 800 milligrams of fluconazole daily and 50% survived to discharge, however no clinical or laboratory findings correlated with prognosis. Conclusion: Cryptococcal meningitis is common among Tanzanian HIV inpatients presenting with headache or altered mental status. Purely clinical features are insensitive for establishing the diagnosis or prognosis. We advocate expanding laboratory capacity for cryptococcal antigen testing to maximize survival.